EN IEC 61800-9-2:2025
(Main)Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification
Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification
IEC 61800-9-2:2023 specifies energy efficiency indicators of power electronics (complete drive modules (CDM), input or output sub drive modules (SDM), power drive systems (PDS) and motor starters, all used for motor driven equipment. This document is a group energy efficiency publication according to IEC Guide 119 and specifies the methodology for the determination of losses of the complete drive module (CDM), the sub drive module (SDM), the power drive system (PDS) and the motor system. It defines IE and IES classes, their limit values and provides test procedures for the classification of the overall losses of the motor system. Furthermore, this document proposes a methodology for the implementation of the best energy efficiency solution of drive systems. This depends on the architecture of the motor driven system, on the speed/torque profile and on the operating points over time of the driven load equipment. It provides a link for the energy efficiency evaluation and classification of the extended product. This edition includes the following significant technical changes with respect to the previous edition: a) Additional IES Classes defined to IES5; b) Removed reference motor loss data and now point to IEC 60034-30-2; c) Expanded and modified factors in Clause 6 for CDMs; d) Annex C is now the Mathematical Model for CDM Losses; e) Moved the mathematical model for the CDM to Annex C; f) Added Sub Drive Input Module and Sub Drive Output Modules to Annex B; g) Annex D is now the Converter Topology (old Annex C); h) Annex E is now the Interpolation of Motor Losses (Old Annex D); i) Annex E expanded to include various motor connections and updated interpolation method; j) New Annex E for determination of Interpolation Coefficients; k) Annex F is the old Annex E; l) New Annex J Explanation of Correction Factors for the Reference Losses in Table 8.
Drehzahlveränderbare elektrische Antriebe - Teil 9-2: Ökodesign für Antriebssysteme, Motorstarter, Leistungselektronik und deren angetriebene Einrichtungen - Indikatoren für die Energieeffizienz von Antriebssystemen und Motorstartern
Entraînements électriques de puissance (PDS) à vitesse variable - Partie 9-2: Écoconception des systèmes moteurs - Détermination et classification de l’efficacité énergétique
L’IEC 61800-9-2:2023 spécifie les indicateurs d’efficacité énergétique pour l’électronique de puissance (modules d’entraînement complets (CDM), sous-modules d’entrée ou de sortie d’entraînement (SDM), les entraînements électriques de puissance (PDS) et les démarreurs de moteurs), utilisés avec les équipements entraînés par moteur. Le présent document est une publication groupée sur l’efficacité énergétique conformément au Guide 119 de l’IEC et spécifie la méthodologie qui permet de déterminer les pertes du module d’entraînement complet (CDM), du sous-module d’entraînement (SDM), de l’entraînement électrique de puissance (PDS) et du système moteur. Il définit les classes IE et IES et établit leurs valeurs limites ainsi que les procédures d’essai pour la classification des pertes globales du système moteur. De plus, le présent document propose une méthodologie pour la mise en œuvre de la solution d’entraînement électrique la plus économe en énergie, qui dépend de l’architecture du système entraîné par moteur, du profil vitesse/couple et des points de fonctionnement dans le temps de l’équipement entraîné. Il établit une base pour l’évaluation et la classification de l’efficacité énergétique du produit étendu. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) définition des classes IES supplémentaires, jusqu’à la classe IES5; b) suppression des données relatives aux pertes du moteur de référence et référence désormais à la norme IEC 60034-30-2; c) facteurs étendus et modifiés dans l’Article 6 pour les CDM; d) l’Annexe C couvre désormais le modèle mathématique des pertes du CDM; e) déplacement du modèle mathématique du CDM à l’Annexe C; f) ajout du sous-module d’entrée d’entraînement et des sous-modules de sortie d’entraînement à l’Annexe B; g) l’Annexe D couvre désormais la topologie du convertisseur (qui correspond à l’ancienne Annexe C); h) l’Annexe E couvre désormais l’interpolation des pertes de moteur (qui correspond à l’ancienne Annexe D); i) l’Annexe E a été étendue pour inclure diverses connexions de moteur et une méthode d’interpolation mise à jour; j) nouvelle Annexe E pour la détermination des coefficients d’interpolation; k) l’annexe F correspond à l’ancienne Annexe E; l) nouvelle Annexe J, Explication des facteurs de correction pour les pertes de référence dans le Tableau 8.
Električni pogonski sistemi z nastavljivo hitrostjo (PDS) - 9-2. del: Okoljsko primerna zasnova za motorne sisteme - Določitev in klasifikacija energijske učinkovitosti (IEC 61800-9-2:2023
Ta del standarda IEC 61800 določa kazalnike energijske učinkovitosti močnostne elektronike (celovitih pogonskih modulov (CDM), vhodnih ali izhodnih podpogonskih modulov (SDM), pogonskih sistemov (PDS) in motornih zaganjalnikov), ki se uporablja za opremo na motorni pogon.
Ta dokument je publikacija skupinske energijske učinkovitosti v skladu z vodilom IEC 119 ter določa metodologijo za določanje izgub celovitega pogonskega modula, podpogonskega modula, pogonskega sistema in motornega sistema.
Opredeljuje razrede IE in IES in njihove mejne vrednosti ter navaja preskusne postopke za klasifikacijo skupne izgube motornih sistemov.
Poleg tega ta dokument predlaga metodologijo za uvedbo najboljše rešitve za energijsko učinkovitost pogonskih sistemov. To je odvisno od arhitekture sistema na motorni pogon, hitrostnega/navornega profila in delovnih točk pogonske nalagalne opreme. Zagotavlja povezavo za vrednotenje in klasifikacijo energijske učinkovitosti razširjenega izdelka.
Metodologija razširjene zasnove izdelka in polanalitični modeli so opredeljeni v standardu IEC 61800-9-1.
Ta dokument ima naslednjo strukturo:
• podane in razvrščene so izgube standardiziranega pogonskega sistema in standardiziranega referenčnega celovitega pogonskega modula (RCDM) ter matematični model za njihov izračun;
• opredeljena sta referenčni motor (RM) in referenčni celoviti pogonski modul. Uporabljata se za določanje razreda učinkovitosti, če je fizični motor ali fizični celoviti pogonski modul neznan;
• podane so zahteve za določanje izgub fizičnega pogonskega sistema in fizičnega celovitega pogonskega modula, vključno s korekcijskimi faktorji za druge vrste celovitega pogonskega modula, ki ni opredeljen kot referenčni celoviti pogonski modul ali podpogonski modul, v primerjavi z omejitvami razreda IES in referenčnim celovitim pogonskim modulom;
• podane so zahteve za tipsko preskušanje in uporabniško dokumentacijo;
• v dodatkih je podanih nekaj primerov izgub celotnega sistema;
• v dodatkih so podane informacije o tipologijah sistemov in pogonov.
Specifični podatki za referenčni celoviti pogonski modul in referenčni motor, mejne vrednosti za pogonski sistem in razredi IE/IES so podani za nizkonapetostne (100 V do vključno 1000 V) enoosne pogonske sisteme na izmenični tok s trifaznimi motorji. Pogonski motorji se obravnavajo kot standardni motorji, kadar je mogoče motor in menjalnik ločiti. Poleg tega je podana metodologija o tem, kako je mogoče te referenčne podatke uporabiti tudi za druge topologije, kot so pretvorniki AC/DC ali DC/AC.
Vsi navedeni referenčni podatki izhajajo iz pogonskih sistemov z asinhronskimi (indukcijskimi) motorji. Uporabljati jih mogoče tudi za različne vrste pogonskih sistemov z drugimi vrstami motorjev, kar med drugim na primer vključuje elektronsko komutirane motorje (ECM), motorje s trajnimi magneti (PM) ali sinhrone reluktančne motorje (SYN-RM) in motorje s trajnimi magneti »line-start« (LSPM). Zahteve za pogonske sisteme v tem dokumentu se uporabljajo samo za pogonske sisteme, ki so dani na trg kot en izdelek, tj. kombinacija motorja in celovitega pogonskega modula, ki nista namenjena ločeni uporabi.
Zahteve za celovite pogonske module se uporabljajo samo za celovite pogonske module, pri katerih vključeni podpogonski moduli še niso bili ovrednoteni v skladu z zahtevami za podpogonske module.
Naslednja oprema ne spada na področje uporabe:
• visokonapetostni celoviti pogonski moduli, podpogonski moduli in pogonski sistemi z nazivno napetostjo, večjo od 1,0 kV AC ali 1,5 kV DC;
• nizkonapetostni celoviti pogonski moduli, podpogonski moduli in pogonski sistemi z nazivno napetostjo, manjšo od 100 V AC;
• visokonapetostni podpogonski moduli z nazivno močjo, večjo od 1000 kW;
• visokonapetostni celoviti pogonski moduli in podpogonski moduli z nazivno navidezno izhodno močjo, večjo od 1209 kVA;
• nizkonapetostni pogonski sistemi z nazivno močjo, manjšo od 0,12 kW;
• nizkonapetostni celoviti pogonski moduli in podpogonski moduli
General Information
- Status
- Published
- Publication Date
- 20-Mar-2025
- Technical Committee
- CLC/TC 22X - Power electronics
- Drafting Committee
- IEC/SC 22G - IEC_SC_22G
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 21-Mar-2025
- Completion Date
- 21-Mar-2025
Relations
- Effective Date
- 08-Sep-2020
- Effective Date
- 18-Feb-2025
Overview
EN IEC 61800-9-2:2025 (based on IEC 61800-9-2:2023) is a group ecodesign standard for adjustable-speed electrical power drive systems (PDS). It specifies a consistent methodology to determine and classify energy efficiency for drive electronics (complete drive modules - CDM), sub‑drive modules (SDM), motor starters, the combined Power Drive System (PDS) and the driven motor system. The standard defines IE (motor) and IES (drive system) classes and limit values, provides test and calculation procedures for loss determination, and gives guidance to implement best‑energy solutions based on system architecture and load profiles.
Key Topics and Requirements
- Scope and purpose: Energy efficiency indicators for power electronics, motor systems and motor starters used in motor-driven equipment; group energy efficiency publication per IEC Guide 119.
- Loss determination methodology: Procedures to calculate and measure losses of CDMs, SDMs, PDS and motors (including semi-analytical models and workflows for combining PDS and load losses).
- Classification: Definition of IE and extended IES classes (new IES classes up to IES5 in this edition) and their limit values for component and system classification.
- Test procedures: Type testing, input–output measurement methods and calorimetric measurement options; instrumentation and test condition requirements are defined.
- Models and annexes: Mathematical model for CDM losses (moved to Annex C), converter topology, interpolation of motor losses, and new annexes explaining correction factors and interpolation coefficients.
- Documentation requirements: User information for selection, energy classification, part‑load and standby losses, regenerative operation and correction factors.
- Changes in this edition (high level): added IES classes, removed embedded reference motor loss data (references now point to IEC 60034-30-2), expanded CDM factors, added SDIM/SDOM details, and updated interpolation methods.
Applications and Who Uses It
- Manufacturers of frequency converters, motor starters, complete drive modules and submodules - for product design, testing and energy-class labelling.
- System integrators and OEMs - to select and size drive components and to optimise system architectures for energy performance across speed/torque profiles.
- Test laboratories and certification bodies - to perform type tests and verify IE/IES classification using the standard’s measurement and calculation methods.
- Energy managers, procurement teams and regulators - for specifying energy-efficient drive systems in tenders, compliance checks and ecodesign regulations.
- Design engineers - to implement the best-energy solution by analysing losses across operating points and selecting optimal combinations of CDM, motor and system topology.
Related Standards
Relevant cross-references include IEC 60034 series (motors - performance and loss data, IEC 60034-2-1, 60034-2-3, 60034-30-1/30-2), IEC 61800 series (other PDS parts), IEC/TS 60034-31 and related EMC and switchgear standards (IEC 61000-3-12, IEC 60947-4-2). EN IEC 61800-9-2:2025 supersedes EN 61800-9-2:2017 and aligns with IEC 61800-9-2:2023.
Frequently Asked Questions
EN IEC 61800-9-2:2025 is a standard published by CLC. Its full title is "Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification". This standard covers: IEC 61800-9-2:2023 specifies energy efficiency indicators of power electronics (complete drive modules (CDM), input or output sub drive modules (SDM), power drive systems (PDS) and motor starters, all used for motor driven equipment. This document is a group energy efficiency publication according to IEC Guide 119 and specifies the methodology for the determination of losses of the complete drive module (CDM), the sub drive module (SDM), the power drive system (PDS) and the motor system. It defines IE and IES classes, their limit values and provides test procedures for the classification of the overall losses of the motor system. Furthermore, this document proposes a methodology for the implementation of the best energy efficiency solution of drive systems. This depends on the architecture of the motor driven system, on the speed/torque profile and on the operating points over time of the driven load equipment. It provides a link for the energy efficiency evaluation and classification of the extended product. This edition includes the following significant technical changes with respect to the previous edition: a) Additional IES Classes defined to IES5; b) Removed reference motor loss data and now point to IEC 60034-30-2; c) Expanded and modified factors in Clause 6 for CDMs; d) Annex C is now the Mathematical Model for CDM Losses; e) Moved the mathematical model for the CDM to Annex C; f) Added Sub Drive Input Module and Sub Drive Output Modules to Annex B; g) Annex D is now the Converter Topology (old Annex C); h) Annex E is now the Interpolation of Motor Losses (Old Annex D); i) Annex E expanded to include various motor connections and updated interpolation method; j) New Annex E for determination of Interpolation Coefficients; k) Annex F is the old Annex E; l) New Annex J Explanation of Correction Factors for the Reference Losses in Table 8.
IEC 61800-9-2:2023 specifies energy efficiency indicators of power electronics (complete drive modules (CDM), input or output sub drive modules (SDM), power drive systems (PDS) and motor starters, all used for motor driven equipment. This document is a group energy efficiency publication according to IEC Guide 119 and specifies the methodology for the determination of losses of the complete drive module (CDM), the sub drive module (SDM), the power drive system (PDS) and the motor system. It defines IE and IES classes, their limit values and provides test procedures for the classification of the overall losses of the motor system. Furthermore, this document proposes a methodology for the implementation of the best energy efficiency solution of drive systems. This depends on the architecture of the motor driven system, on the speed/torque profile and on the operating points over time of the driven load equipment. It provides a link for the energy efficiency evaluation and classification of the extended product. This edition includes the following significant technical changes with respect to the previous edition: a) Additional IES Classes defined to IES5; b) Removed reference motor loss data and now point to IEC 60034-30-2; c) Expanded and modified factors in Clause 6 for CDMs; d) Annex C is now the Mathematical Model for CDM Losses; e) Moved the mathematical model for the CDM to Annex C; f) Added Sub Drive Input Module and Sub Drive Output Modules to Annex B; g) Annex D is now the Converter Topology (old Annex C); h) Annex E is now the Interpolation of Motor Losses (Old Annex D); i) Annex E expanded to include various motor connections and updated interpolation method; j) New Annex E for determination of Interpolation Coefficients; k) Annex F is the old Annex E; l) New Annex J Explanation of Correction Factors for the Reference Losses in Table 8.
EN IEC 61800-9-2:2025 is classified under the following ICS (International Classification for Standards) categories: 29.130.01 - Switchgear and controlgear in general; 29.160.30 - Motors; 29.200 - Rectifiers. Convertors. Stabilized power supply. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 61800-9-2:2025 has the following relationships with other standards: It is inter standard links to EN 61800-9-2:2017, EN IEC 61800-9-2:2025/prA1:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 61800-9-2:2025 is associated with the following European legislation: EU Directives/Regulations: 640/2009; Standardization Mandates: M/470, M/476. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN IEC 61800-9-2:2025 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2025
Električni pogonski sistemi z nastavljivo hitrostjo (PDS) - 9-2. del: Okoljsko
primerna zasnova za motorne sisteme - Določitev in klasifikacija energijske
učinkovitosti (IEC 61800-9-2:2023
Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor
systems - Energy efficiency determination and classification(IEC 61800-9-2:2023)
Drehzahlveränderbare elektrische Antriebe - Teil 9-2: Ökodesign für Antriebssysteme,
Motorstarter, Leistungselektronik und deren angetriebene Einrichtungen -Indikatoren für
die Energieeffizienz von Antriebssystemen und Motorstartern (IEC 61800-9-2:2023)
Entraînements électriques de puissance (PDS) à vitesse variable - Partie 9-2:
Écoconception des systèmes moteurs - Détermination et classification de l'efficacité
énergétique (IEC 61800-9-2:2023)
Ta slovenski standard je istoveten z: EN IEC 61800-9-2:2025
ICS:
27.015 Energijska učinkovitost. Energy efficiency. Energy
Ohranjanje energije na conservation in general
splošno
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61800-9-2
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2025
ICS 29.160.30; 29.130.01; 29.200 Supersedes EN 61800-9-2:2017
English Version
Adjustable speed electrical power drive systems (PDS) -
Part 9-2: Ecodesign for motor systems - Energy efficiency
determination and classification
(IEC 61800-9-2:2023)
Entraînements électriques de puissance (PDS) à vitesse Drehzahlveränderbare elektrische Antriebe - Teil 9-2:
variable - Partie 9-2: Écoconception des systèmes moteurs Ökodesign für Antriebssysteme, Motorstarter,
- Détermination et classification de l'efficacité énergétique Leistungselektronik und deren angetriebene Einrichtungen -
(IEC 61800-9-2:2023) Indikatoren für die Energieeffizienz von Antriebssystemen
und Motorstartern
(IEC 61800-9-2:2023)
This European Standard was approved by CENELEC on 2023-11-24. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61800-9-2:2025 E
European foreword
The text of document 22G/475/FDIS, future edition 2 of IEC 61800-9-2, prepared by SC 22G
"Adjustable speed electric power drive systems (PDS)" of IEC/TC 22 "Power electronic systems and
equipment" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-03-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-03-31
document have to be withdrawn
This document supersedes EN 61800-9-2:2017 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61800-9-2:2023 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60034 (series) NOTE Approved as EN IEC 60034 (series)
IEC/TS 60034-25 NOTE Approved as CLC IEC/TS 60034-25
IEC 60146-1-1 NOTE Approved as EN IEC 60146-1-1
IEC 60947-4-2 NOTE Approved as EN IEC 60947-4-2
IEC 61800-1 NOTE Approved as EN IEC 61800-1
IEC 61800-2 NOTE Approved as EN IEC 61800-2
IEC 61800-3 NOTE Approved as EN IEC 61800-3
IEC 61800-5-1 NOTE Approved as EN IEC 61800-5-1
IEC 61800-9-1 NOTE Approved as EN 61800-9-1
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60034-1 2022 Rotating electrical machines - Part 1: - -
Rating and performance
IEC 60034-2-1 2014 Rotating electrical machines - Part 2-1: EN 60034-2-1 2014
Standard methods for determining losses
and efficiency from tests (excluding
machines for traction vehicles)
IEC 60034-2-3 2020 Rotating electrical machines - Part 2-3: EN IEC 60034-2-3 2020
Specific test methods for determining
losses and efficiency of converter-fed AC
motors
IEC 60034-30-1 2014 Rotating electrical machines - Part 30-1: EN 60034-30-1 2014
Efficiency classes of line operated AC
motors (IE code)
IEC/TS 60034-30-2 2016 Rotating electrical machines - Part 30-2: CLC IEC/TS 60034- 2021
Efficiency classes of variable speed AC 30-2
motors (IE-code)
IEC/TS 60034-31 2021 Rotating electrical machines - Part 31: CLC IEC/TS 60034- 2024
Selection of energy-efficient motors 31
including variable speed applications -
Application guidelines
IEC 60038 (mod) 2009 IEC standard voltages EN 60038 2011
+ AMD1 - - -
IEC 60050-161 - International Electrotechnical Vocabulary. - -
Chapter 161: Electromagnetic
compatibility
IEC 60947-4-1 2018 Low-voltage switchgear and controlgear - EN IEC 60947-4-1 2019
Part 4-1: Contactors and motor-starters -
Electromechanical contactors and motor-
starters
Publication Year Title EN/HD Year
IEC 61000-3-12 2011 Electromagnetic compatibility (EMC) - EN 61000-3-12 2011
Part 3-12: Limits - Limits for harmonic
currents produced by equipment
connected to public low-voltage systems
with input current > 16 A and ≤ 75 A per
phase
IEC GUIDE 118 2017 Inclusion of energy efficiency aspects in - -
electrotechnical publications
IEC 61800-9-2 ®
Edition 2.0 2023-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
GROUP ENERGY EFFICIENCY PUBLICATION
PUBLICATION GROUPÉE SUR L’ÉFFICACITÉ ÉNERGÉTIQUE
Adjustable speed electrical power drive systems (PDS) –
Part 9-2: Ecodesign for motor systems – Energy efficiency determination and
classification
Entraînements électriques de puissance (PDS) à vitesse variable –
Partie 9-2: Écoconception des systèmes moteurs – Détermination et
classification de l’efficacité énergétique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.01; 29.160.30; 29.200 ISBN 978-2-8322-7576-4
– 2 – IEC 61800-9-2:2023 © IEC 2023
CONTENTS
FOREWORD . 9
INTRODUCTION . 11
1 Scope . 12
2 Normative references . 13
3 Terms, definitions and symbols. 14
3.1 Terms and definitions . 14
3.2 Symbols . 18
4 PDS efficiency, reference CDM (RCDM) and reference motor (RM) . 26
4.1 General . 26
4.2 Reference operating points of the PDS, RCDM, RM and associated losses . 27
4.3 Combining PDS losses with the driven equipment – Workflow for the semi-
analytical model (SAM) . 29
4.4 IE Classes of line-fed motors . 31
4.5 IE Classes of converter-fed motors . 31
4.6 IE Classes of frequency converters (complete drive modules, CDM) . 31
4.7 IES Classes of a PDS . 32
4.8 Consistency of IE and IES Classes . 32
4.9 Determination of the IES class of a PDS by application of "reference" and
"test" devices and guidance for the providers . 33
5 Determination of CDM, motor and PDS loss by calculation . 34
5.1 General . 34
5.2 CDM losses . 35
5.2.1 General procedure and definition of the CDM and the test load . 35
5.2.2 Overall CDM losses . 37
5.2.3 Loss determination of CDMs composed by combination of submodules . 38
5.2.4 Validation of loss calculation method . 40
5.3 Motor losses . 40
5.3.1 General . 40
5.3.2 Additional harmonic losses of three-phase asynchronous motors fed by
a CDM . 41
5.3.3 Motor loss data . 41
5.4 Power drive system (PDS) losses . 41
5.4.1 PDS losses . 41
5.4.2 PDS losses at different switching frequencies . 43
5.5 PDS losses for regenerative operation . 44
5.6 Losses of motor starters . 44
6 Limits of IE and IES Classes. 44
6.1 General . 44
6.2 CDM . 45
6.3 Correction factors for CDMs with modified functionality . 47
6.3.1 General . 47
6.3.2 Correction factors . 48
6.3.3 Reference losses and loss determination concept for CDMs and SDOMs
with multiple AC outputs . 49
6.4 Motor . 51
6.5 PDS . 51
7 Loss determination . 52
IEC 61800-9-2:2023 © IEC 2023 – 3 –
7.1 General . 52
7.2 Type testing of CDM or SDM for IE classification . 53
7.3 Type testing of PDS for IES classification . 54
7.4 Determination of losses by calculation . 54
7.4.1 CDM or SDM losses by calculation . 54
7.4.2 PDS losses by calculation . 55
7.5 Determination of losses by measurement, Input-output method . 55
7.5.1 Instrumentation . 55
7.5.2 Test conditions . 56
7.5.3 Input-output measurement of CDM losses . 57
7.5.4 Input-output measurement of SDIM losses . 59
7.5.5 Input-output measurement of SDOM losses . 61
7.5.6 Input-output measurement of PDS losses . 62
7.6 Calorimetric measurement of CDM losses . 63
7.7 Flowcharts for test procedures . 64
8 Requirements for the user’s documentation . 67
8.1 General . 67
8.2 Information for selection . 68
8.3 Information for determination of energy efficiency classification . 68
8.4 Information on the determination of additional energy losses and part load
conditions . 68
8.4.1 General . 68
8.4.2 Losses in part load conditions . 68
8.4.3 Losses of accessories and options . 69
8.4.4 Losses in stand-by mode . 69
8.4.5 Regenerative mode . 69
8.4.6 Characteristics and correction factors . 69
Annex A (informative) Losses of RCDM and example of IES class limit determination. 70
A.1 Relative loss tables . 70
A.2 Calculation of relative losses for IES classes . 71
A.2.1 General . 71
A.2.2 Determination of CDM relative losses . 71
A.2.3 Determination of motor relative losses . 72
A.2.4 Summation of PDS relative losses . 72
Annex B (informative) Description of the elements of an extended product using PDS
with regard to their impact on losses . 73
B.1 General . 73
B.2 Losses in the mains cabling and feeding section . 73
B.3 Input filter . 75
B.3.1 High frequency EMI filter . 75
B.3.2 Low frequency line harmonics filter . 75
B.4 Input converter . 76
B.4.1 General . 76
B.4.2 Diode rectifier . 76
B.4.3 Active infeed converter . 76
B.4.4 Power factor of the input converter . 78
B.4.5 Sub drive input module (SDIM) . 79
B.5 DC link . 79
B.6 Output inverter . 80
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B.6.1 General . 80
B.6.2 Sub drive output model (SDOM) . 81
B.7 Output filter and motor cables . 81
B.7.1 General . 81
B.7.2 Sine wave filters . 82
B.7.3 dV/dt filters and motor chokes . 83
B.7.4 High frequency EMI motor filters . 83
B.7.5 Motor cables . 83
B.8 Motor . 83
B.9 Mechanical load . 83
B.10 Control and standby losses . 84
B.11 Cooling losses . 84
B.11.1 Primary cooling losses . 84
B.11.2 Secondary cooling losses . 84
Annex C (informative) Mathematical model for CDM losses . 85
C.1 General . 85
C.2 Output inverter losses . 85
C.2.1 General . 85
C.2.2 Transistor on state losses . 85
C.2.3 Freewheeling diode on state losses . 86
C.2.4 Transistor switching losses . 86
C.2.5 Freewheeling diode switching losses . 87
C.2.6 Output inverter total losses . 88
C.3 Input converter losses . 88
C.3.1 Active infeed converter . 88
C.3.2 Diode rectifier . 88
C.4 Input choke losses . 89
C.5 DC link losses . 90
C.6 Current conductor losses . 90
C.7 Control and standby losses . 91
C.8 Cooling loss factor . 91
C.9 Other CDM losses . 91
Annex D (informative) Converter topology . 92
D.1 General . 92
D.2 Voltage source output inverter topologies different from those
mathematically described in Clause C.2 . 92
D.3 Voltage source input converter topologies different from those
mathematically described in Clause C.3 . 92
D.4 CDM topologies different from voltage source type . 93
Annex E (informative) Interpolation of motor losses and motor current . 94
E.1 General . 94
E.2 Relative and reference values . 94
E.3 Motor connections and operating ranges . 95
E.4 Interpolation of motor losses . 96
E.5 Interpolation of motor current . 99
E.6 Determination of the interpolation coefficients . 101
E.6.1 General . 101
E.6.2 Analytical determination. 101
E.6.3 Numerical determination . 103
IEC 61800-9-2:2023 © IEC 2023 – 5 –
E.7 Achievable accuracies . 104
E.8 Typical induction motor efficiency . 104
Annex F (informative) Application example for loss calculations of a CDM and a PDS . 110
F.1 General . 110
F.2 CDM loss determination . 110
F.2.1 General . 110
F.2.2 Loss determination by two-dimensional interpolation of losses of
neighbouring loss points . 111
F.2.3 Loss determination by the mathematical model described in Annex C . 114
F.3 Loss determination of the motor . 116
F.4 Loss determination of the PDS . 117
F.5 Determination of part load factors for SDIMs . 118
F.6 Application examples of reference losses and efficiency classes for modified
functionality . 119
F.6.1 General . 119
F.6.2 Example 1 – IE classification of an SDIM . 119
F.6.3 Example 2 – IE classification of an SDOM . 119
F.6.4 Example 3 – IE classification of a CDM with regenerative capability and
sinewave output filter . 120
Annex G (informative) Uncertainty of loss determination method. 122
G.1 General . 122
G.2 Calculation of uncertainty at randomly occurring errors . 122
G.3 Comparison of uncertainties for different loss determination methods . 122
Annex H (informative) Calorimetric measurement for CDM losses . 123
H.1 General . 123
H.2 Calorimeter with two chambers with air as a cooling medium . 123
H.3 Calorimeter with one chamber with air as a cooling medium . 124
H.4 Calorimeter with liquid as a cooling medium . 125
Annex I (informative) PDS loss calculation above rated speed and torque . 126
I.1 General . 126
I.2 Operating points above rated torque . 126
I.3 Operating points above rated speed . 126
I.3.1 General . 126
I.3.2 Dependency of motor losses on the CDM performance . 126
I.3.3 Dependency of CDM on the motor performance . 127
I.3.4 PDS loss calculation in the field weakening range up to 200 % of rated
speed . 127
Annex J (informative) Explanation for correction factors for the reference losses in
Table 8 . 128
J.1 General . 128
J.2 CDM . 128
J.2.1 CDM without regenerative capability . 128
J.2.2 CDM with regenerative capability . 129
J.2.3 CDM with DF ≤ 10 % . 130
U
J.2.4 CDM with a rated input voltage ≤ 250 V (three phase) . 130
J.2.5 CDM with single phase input . 130
J.3 SDIM and SDOM . 131
J.3.1 General . 131
J.3.2 SDIM without regenerative capability . 131
– 6 – IEC 61800-9-2:2023 © IEC 2023
J.3.3 SDIM with regenerative capability . 131
J.3.4 SDOM. 132
J.4 CDM, SDIM and SDOM with external cooling . 132
J.5 CDM and SDOM with multiple AC outputs . 132
Bibliography . 133
Figure 1 – Example of complete drive module (CDM) built by sub drive modules (SDM) . 15
Figure 2 – Illustration of the extended product with included motor system . 16
Figure 3 – Torque-speed-characteristic of servo PDS . 17
Figure 4 – Illustration of the operating points (shaft speed, torque) for the
determination of relative losses of the power drive system (PDS) . 28
Figure 5 – Illustration of the operating points (shaft speed, torque) for the
determination of relative losses of the reference motor (RM). 28
Figure 6 – Illustration of the operating points (relative motor stator frequency, relative
torque current) for the determination of losses of the reference complete drive module
(RCDM) . 29
Figure 7 – Illustration of the workflow to determine the energy efficiency index (EEI) of
an extended product . 30
Figure 8 – Illustration how to combine different data sources to determine the energy
efficiency index (EEI) of an extended product . 31
Figure 9 – Metrical relation . 32
Figure 10 – Guidance for CDM and motor providers for the usage of "test" and
"reference" devices to determine the IE/IES classes . 34
Figure 11 – Illustration of a typical CDM and test load . 35
Figure 12 – Example of relative losses p of the 9,95 kVA RCDM . 38
L,CDM
Figure 13 – Example of the relative power losses of PDS as function of speed and
torque . 43
Figure 14 – Example representation of the relative power losses versus switching
frequency of a 7,5 kW to 11 kW PDS . 43
Figure 15 – Example of a CDM with resistor for dissipating generated power . 44
Figure 16 – Illustration of IE Classes for a CDM . 47
Figure 17 – Topology of a CDM with multiple AC outputs . 50
Figure 18 – Losses of CDM or SDM are provided as the sum of the determined losses
plus the uncertainty of the determination method . 53
Figure 19 – Input-output measurement setup for determination of CDM losses . 58
Figure 20 – Order of CDM measurements from [1] to [8] . 58
Figure 21 – Input-output measurement setup for determination of SDIM losses . 60
Figure 22 – Input-output measurement setup for determination of SDOM losses . 61
Figure 23 – Input-output measurement setup for PDS losses . 62
Figure 24 – Order of PDS measurements from [1] to [8] . 63
Figure 25 – Calorimetric measurement setup for determining CDM losses . 64
Figure 26 – Determination of IE classification for CDM and loss determination for part
load operating points . 65
Figure 27 – Determination of IES classification for PDS and loss determination for part
load operating points . 66
Figure B.1 – Overview of the extended product and energy flow . 73
Figure B.2 – Equivalent circuit of the mains and mains cabling . 74
IEC 61800-9-2:2023 © IEC 2023 – 7 –
Figure B.3 – Illustration of a single-phase line harmonics filter . 75
Figure B.4 – PDS with a diode rectifier input converter . 76
Figure B.5 – PDS with a standard AIC input converter . 77
Figure B.6 – PDS with a F3E-AIC input converter without line choke . 77
Figure B.7 – Typical waveform of a diode rectifier line current . 78
Figure B.8 – DC link circuit . 79
Figure B.9 – DC link circuit with additional DC chokes . 80
Figure B.10 – Output inverter of the PDS . 81
Figure B.11 – Motor cable and optional output filter of the PDS . 82
Figure B.12 – Typical waveform of inverter output voltage and motor voltage when
using a sine wave output filter . 82
Figure E.1 – Normalized torque and speed of ranges a and b for connection Y or D . 95
Figure E.2 – Normalized torque and speed of ranges a and b for connection Y D . 96
Figure E.3 – Normalized torque and speed of range a for connection Y YY . 96
Figure E.4 – Normalized losses of an exemplary motor in connection Y or D . 97
Figure E.5 – Normalized losses of an exemplary motor in connection Y D . 97
Figure E.6 – Normalized losses of an exemplary motor in connection Y YY . 98
Figure E.7 – Efficiency map of the exemplary motor in connection Y or D . 98
Figure E.8 – Efficiency map of the exemplary motor in connection Y D . 99
Figure E.9 – Efficiency map of the exemplary motor in connection Y YY . 99
Figure E.10 – Line-current of the exemplary motor in connection Y or D . 100
Figure E.11 – Line-current of the exemplary motor in connection Y D . 100
Figure E.12 – Line-current of the exemplary motor in connection Y YY . 101
Figure E.13 – Standardized operating points of IEC 60034-2-3 . 102
Figure F.1 – Segments of operating points . 110
Figure F.2 – Two-dimensional interpolation . 111
Figure H.1 – One-step calorimetric measurement setup for comparative loss
measurement (CDM and heating resistor are loaded simultaneously). 123
Figure H.2 – Two-step calorimetric measurement setup for comparative loss
measurement (CDM and heating resistor are not loaded simultaneously) . 124
Figure H.3 – Liquid cooled calorimetric measurement setup for CDM loss measurement. 125
Table 1 – Minimum test load currents at different points of operation . 36
Table 2 – Test load displacement factor between fundamental output current and
fundamental output voltage at different points of operation . 36
Table 3 – Example of relative losses of the 400 V/9,95 kVA reference CDM at the
operating points described in Figure 6 . 38
Table 4 – Active SDIM power ratio to be used for loss calculation at the CDM operating
points. 40
Table 5 – Reference parameter for Formula (13). 42
Table 6 – Relative losses of the 400 V/7,5 kW PDS . 42
Table 7 – Reference CDM losses for class IE1 definition . 45
Table 8 – Correction factors for different CDM, SDIM and SDOM characteristics . 49
Table 9 – Information requirements . 67
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Table A.1 – Relative losses (%) of reference CDMs (IE1) at different power ratings at
the operating points described in Figure 6 . 70
Table A.2 – Relative losses of the 9,95 kVA CDM according to Table A.1 . 71
Table B.1 – Typical values of λ for different input converter topologies . 78
Table C.1 – Reference parameters for Formula (C.1) . 85
Table C.2 – Variables for Formula (C.1) . 86
Table C.3 – Reference parameters for Formula (C.2) . 86
Table C.4 – Reference parameters for Formula (C.3) . 87
Table C.5 – Reference parameters for Formula (C.4) . 87
Table C.6 – Reference parameters for Formula (C.6) . 89
Table C.7 – Variables for Formula (C.6) . 89
Table C.8 – Reference parameters for Formula (C.7) . 89
Table C.9 – Reference parameters for Formula (C.8) . 90
Table C.10 – Reference parameters for Formula (C.9) . 90
Table C.11 – Reference parameter for Formula (5) . 91
Table C.12 – Reference parameter for Formula (C.10) . 91
Table E.1 – Normative operating points of IEC 60034-2-3 . 101
Table E.2 – Interpolation coefficients of typical 4-pole IE2 induction machines . 105
Table E.3 – Interpolation coefficients of typical 2-pole IE2 induction machines . 106
Table E.4 – Interpolation coefficients of typical 4-pole IE3 induction machines . 107
Table E.5 – Interpolation coefficients of typical 4-pole IE4 induction machines . 108
Table E.6 – Interpolation coefficients of typical 4-pole IE5 induction machines . 109
Table F.1 – Relative losses of a 400 V/9,95 kVA example CDM (IE1) at the predefined
operating points
...
SIST EN IEC 61800-9-2:2025の標準は、調整可能な電力駆動システムに関する重要なドキュメントであり、特にエコデザインにおけるエネルギー効率の指標に焦点を当てています。この標準は、電力電子機器、完全駆動モジュール（CDM）、サブ駆動モジュール（SDM）、およびモーター駆動装置に使用されるモーターシステムに関連するエネルギー効率の測定と分類を体系化するための方法論を提供します。このように、EN IEC 61800-9-2はエネルギー効率評価のための信頼性の高いガイドラインとして極めて関連性が高いです。 標準の強みは、エネルギー効率のクラス（IEおよびIESクラス）やその限界値の明確な定義に加え、モーターシステムの全体的な損失の分類に関する詳細な試験手順を含んでいる点です。これにより、製品のエネルギー効率を効果的に評価・分類できるため、業界全体でのエネルギー消費削減に貢献しています。また、最新の技術変更が追加され、IES5クラスの新規定義や、CDM損失に関する数学モデルの導入がなされていることも、この標準の適応性と実用性を向上させています。 さらに、駆動システムの最適なエネルギー効率ソリューションの導入方法についての提案がなされており、モーター駆動システムのアーキテクチャ、速度およびトルクのプロファイル、負荷機器の運転ポイントに基づいてエネルギー効率を最適化するための指針が示されています。このような包括的なアプローチは、エネルギー効率の向上を図る上で欠かせない要素です。 全体として、SIST EN IEC 61800-9-2:2025は、現代の電力駆動システムにおけるエネルギー効率の向上に寄与するための強力な文書であり、業界の持続可能な発展を支援するための基盤を提供します。この標準が提供する詳細な指針と変更の取り入れは、エネルギー効率の最適化と新たな技術開発の進展に大いに寄与するでしょう。
Le document SIST EN IEC 61800-9-2:2025 représente une avancée significative dans le domaine des systèmes électriques de conversion de puissance, se concentrant sur l'écoconception et l'efficacité énergétique des systèmes motorisés. Ce standard fournit des indicateurs clairs d'efficacité énergétique pour les électroniques de puissance, y compris les modules de conduite complets (CDM), les modules de sous-drive (SDM), ainsi que les systèmes de drive (PDS) et les démarreurs de moteur. Parmi les forces notables de cette norme, on trouve la méthodologie détaillée pour déterminer les pertes des différentes composantes, ce qui est essentiel pour l'évaluation de l'efficacité énergétique. La classification des classes IE et IES, ainsi que les valeurs limites définies, offrent un cadre structuré pour la gestion de l'efficacité énergétique des systèmes motorisés. L'introduction de nouvelles classes IES jusqu'à IES5 enrichit le système de classification et permet une évaluation plus précise des performances. L'extension et la modification des facteurs dans la Clause 6 pour les CDM, ainsi que la réorganisation des annexes, démontrent une approche méthodologique rigoureuse qui répond aux évolutions technologiques et aux exigences modernes en matière d'efficacité énergétique. En déplaçant le modèle mathématique pour les pertes CDM à l'Annexe C et en y intégrant de nouveaux éléments, le standard améliore l'accessibilité et la compréhension du processus d'évaluation. La pertinence de ce standard ne peut être sous-estimée. Avec l'accent croissant mis sur la durabilité et l'efficacité énergétique dans la conception des systèmes de drive, l'IEC 61800-9-2:2025 s'aligne parfaitement sur les objectifs contemporains en matière de réduction des pertes énergétiques et d'optimisation des systèmes. En fournissant des solutions efficaces pour la mise en œuvre des systèmes de drive, ce document joue un rôle crucial dans la transition vers des technologies plus durables et plus économiquement viables pour l'industrie.
The EN IEC 61800-9-2:2025 standard presents a comprehensive framework for evaluating energy efficiency in adjustable speed electrical power drive systems and motor systems. The document's scope encompasses a wide range of components, including complete drive modules (CDM), sub drive modules (SDM), and power drive systems (PDS), making it highly relevant for industries utilizing motor-driven equipment. One of the key strengths of this standard is its systematic approach to determining energy efficiency indicators. It provides a clear methodology for assessing losses within the various components of the drive systems. By defining International Efficiency (IE) and International Efficiency Scale (IES) classes alongside their limit values, the standard facilitates the classification of energy efficiency in power electronics, ensuring a consistent framework for manufacturers and users alike. The document's rigorous testing procedures for evaluating the overall losses of motor systems contribute significantly to its robustness. The addition of new IES Classes, up to IES5, and the removal of outdated reference motor loss data to align with IEC 60034-30-2 enhances the standard’s relevance in the evolving landscape of energy efficiency. Moreover, the standard addresses the importance of system architecture and operational factors such as speed/torque profiles and load equipment operating points. This context allows for tailored approaches to energy efficiency implementations, making it applicable to diverse use cases across different industries. The technical updates in this edition, including the relocation of the mathematical models for CDM losses to Annex C and the introduction of additional annexes detailing conversion topologies and interpolation methods for motor losses, reflect ongoing advancements in technology and a commitment to maintaining contemporary relevance. Overall, EN IEC 61800-9-2:2025 serves as an essential guide for enhancing the energy efficiency of motor systems, thus aligning with global initiatives toward sustainable practices and energy conservation. Its comprehensive methodologies and adaptable frameworks underscore its significance in the pursuit of optimal energy efficiency solutions in adjustable speed electrical power drive systems.
Die Norm EN IEC 61800-9-2:2025 befasst sich mit der Ökodesign-Bewertung von elektrischen Antriebssystemen, insbesondere in Bezug auf die Energieeffizienz. Der Geltungsbereich dieser Norm ist umfassend, da sie spezifische Energieeffizienzindikatoren für Leistungselektronik, einschließlich vollständiger Antriebseinheiten (CDM), Unterantriebseinheiten (SDM) und Leistungssysteme (PDS), sowie Motorstarter festlegt. Ein wesentliches Merkmal dieser Norm ist die klare Definition der IE und IES Klassen sowie deren Grenzwerte, die für die Klassifizierung der Gesamtverluste von Motorsystemen entscheidend sind. Die bereitgestellten Prüfverfahren ermöglichen eine systematische Bewertung der Energieverluste, was die Effizienz von motorisch betriebenen Anlagen erheblich verbessern kann. Dies ist besonders relevant in einem Markt, der zunehmend auf umweltfreundliche und energieeffiziente Lösungen ausgerichtet ist. Ein weiterer Pluspunkt der EN IEC 61800-9-2:2025 ist die Methodologie zur Implementierung von besten Energieeffizienzlösungen für Antriebssysteme. Diese Methodologie berücksichtigt die Architektur des motorbetriebenen Systems, die Drehmoment-/Geschwindigkeitsprofile sowie die Betriebspunkte der Anlagen über einen bestimmten Zeitraum. Diese Anpassungsfähigkeit an verschiedene Betriebsbedingungen ist von großer Bedeutung, um die spezifischen Anforderungen verschiedener Anwendungen zu berücksichtigen. Die aktualisierte Ausgabe bringt auch wesentliche technische Änderungen mit sich, wie die Einführung zusätzlicher IES Klassen bis zu IES5, die Entfernung der Bezugsmotordaten und die Erweiterung der Faktoren in Klausel 6 für CDMs. Die Umstrukturierung der Anhänge, insbesondere die Einführung des mathematischen Modells für CDM-Verluste, stellt einen erheblichen Fortschritt dar, der die Benutzerfreundlichkeit und Klarheit der Norm erhöht. Darüber hinaus die neuen Anhänge, die spezifische Informationen zur Interpolation der Motorverluste und die Bestimmung der Interpolationskoeffizienten enthalten, sind eine wertvolle Ergänzung, die die praktischen Anwendungen der Norm erleichtert. Diese umfassenden Anpassungen reflektieren den technologischen Fortschritt und die sich ändernden Anforderungen an eingehende Antriebssysteme, wodurch die Relevanz dieser Norm in der heutigen industriellen Landschaft gestärkt wird. Zusammenfassend lässt sich sagen, dass die EN IEC 61800-9-2:2025 eine fortschrittliche und gut strukturierte Norm darstellt, die entscheidend zur Verbesserung der Energieeffizienz von elektrischen Antriebssystemen beiträgt und somit einen wichtigen Beitrag zu ökologischen Zielen leistet.
SIST EN IEC 61800-9-2:2025 표준은 모터 구동 장비를 위한 전력 전자 장치의 에너지 효율 지표를 명확히 규정하고 있습니다. 이 표준의 주요 강점은 완전한 구동 모듈(CDM), 하위 구동 모듈(SDM), 전력 구동 시스템(PDS) 및 모터 스타터를 포함한 다양한 구성 요소의 에너지 효율성을 평가하는 체계적인 방법론을 제공한다는 점입니다. 표준은 에너지 효율성의 결정 및 분류를 위한 IE 및 IES 클래스와 그 한계 값을 정의하며, 모터 시스템의 전반적인 손실 분류를 위한 시험 절차를 제공합니다. 이러한 접근 방식은 에너지 효율 평가와 최적의 에너지 효율성 솔루션 구현을 가능하게 하여, 모터 구동 시스템의 아키텍처, 속도/토크 프로파일, 동작 포인트에 기반한 맞춤형 솔루션을 제시합니다. 특히, 이 문서는 IEC Guide 119에 따른 그룹 에너지 효율성 출판물로서의 역할을 수행하며, 기존 판과 비교할 때 많은 기술적 변화가 포함되어 있습니다. 추가적인 IES 클래스의 정의와 IEC 60034-30-2로의 참조 변경, CDM 손실을 위한 수학적 모델의 명확화 등은 이 표준의 최신성을 강조합니다. 또한, 다양한 모터 연결 및 업데이트된 보간 방법을 포함한 새로운 부록 E는 에너지 효율성을 보다 세밀하게 평가할 수 있도록 지원합니다. 이러한 점에서 SIST EN IEC 61800-9-2:2025는 모터 시스템의 에너지 효율성을 향상시키기 위한 중요한 기준을 제공하며, 현재 및 미래의 전력 드라이브 시스템 설계 및 운영에서 큰 관련성을 가집니다.
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