IEC 61800-1:2021

IEC 61800-1 ®
Edition 2.0 2021-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Adjustable speed electrical power drive systems –
Part 1: General requirements – Rating specifications for low voltage adjustable
speed DC power drive systems
Entraînements électriques de puissance à vitesse variable –
Partie 1: Exigences générales – Spécifications de dimensionnement pour
systèmes d’entraînement de puissance à vitesse variable en courant continu
et basse tension
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IEC 61800-1 ®
Edition 2.0 2021-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Adjustable speed electrical power drive systems –

Part 1: General requirements – Rating specifications for low voltage adjustable

speed DC power drive systems
Entraînements électriques de puissance à vitesse variable –

Partie 1: Exigences générales – Spécifications de dimensionnement pour

systèmes d’entraînement de puissance à vitesse variable en courant continu

et basse tension
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.160.30; 29.200 ISBN 978-2-8322-9271-6

– 2 – IEC 61800-1:2021 © IEC 2021
CONTENTS
FOREWORD . 8
INTRODUCTION . 10
0.1 General . 10
0.2 Consistency of requirement . 10
0.3 Tool for agreement between customer and manufacturer . 10
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 14
3.1 System elements . 14
3.2 Converters and circuit elements (see Table 2) . 19
3.3 Drive system operating characteristics (see Table 3) . 20
3.4 Input ratings of BDM/CDM/PDS (see Table 4) . 23
3.5 Output ratings of BDM/CDM (see Table 5) . 27
3.6 Motor ratings (see Table 6) . 29
3.7 Control systems (see Table 7) . 32
3.8 Tests (see Table 8) . 33
4 Ratings and specifications for the act of installing, commissioning and operation . 34
4.1 General . 34
4.2 BDM/CDM/PDS characteristics and topology . 34
4.2.1 General . 34
4.2.2 BDM/CDM/PDS characteristics . 35
4.2.3 Basic topology for BDM/CDM/PDS’s . 35
4.3 Ratings . 39
4.3.1 General . 39
4.3.2 Input ratings . 40
4.3.3 Output ratings . 41
4.3.4 Operating quadrants . 44
4.3.5 Ratings, properties and functionalities of the BDM/CDM/PDS . 44
4.3.6 Special ratings related to BDM/CDM/PDS or motor . 45
4.4 Performance . 45
4.4.1 Operational . 45
4.4.2 Fault supervision and protection . 55
4.4.3 Minimum status indication required . 56
4.4.4 I/O devices . 57
4.5 General safety . 59
4.6 Functional safety . 59
4.7 EMC . 59
4.8 Ecodesign . 60
4.8.1 General . 60
4.8.2 Energy efficiency and power losses . 60
4.8.3 Environmental impact . 60
4.9 Environmental condition for service, transport and storage . 60
4.9.1 General . 60
4.9.2 Operation . 60
4.9.3 Storage and transport of equipment . 65
4.9.4 Mechanical conditions . 66

4.9.5 Specific storage hazards . 67
4.9.6 Environmental service tests (type test) . 67
4.10 Types of load duty profiles . 68
4.11 Generic interface and use of profiles for PDS . 68
4.12 Voltage on power interface . 70
4.13 Explosive environment . 70
5 Test . 71
5.1 General . 71
5.2 Performance of tests . 71
5.2.1 General conditions . 71
5.2.2 Supply system earthing conditions . 71
5.3 Standard tests for BDM/CDM/PDS . 71
5.3.1 General . 71
5.3.2 Test for mass produced products . 73
5.3.3 Test for one-off products . 73
5.4 Test specifications . 73
5.4.1 Visual inspections (type test, sample test and routine test) . 73
5.4.2 Performance and rating test . 74
5.4.3 General safety . 82
5.4.4 Functional safety . 82
5.4.5 EMC . 82
5.4.6 Energy efficiency and power losses determination . 82
5.4.7 Environmental condition tests . 82
5.4.8 Communication profiles . 84
5.4.9 Explosive atmosphere environment . 85
6 Information and marking requirements . 85
6.1 General . 85
6.2 Marking on product . 86
6.3 Information to be supplied with the PDS or BDM/CDM . 87
6.4 Information to be supplied or made available . 87
6.5 Safety and warning information . 87
6.5.1 Warning labels . 87
6.5.2 Additional safety considerations of a PDS . 87
Annex A (informative) Motor considerations . 89
A.1 General . 89
A.2 Cooling considerations . 89
A.3 Waveform ripple considerations . 90
A.3.1 General . 90
A.3.2 Converter topologies . 90
A.3.3 Potentials to earth . 90
A.4 Torsional considerations . 91
A.4.1 General . 91
A.4.2 Torsional analysis . 91
A.4.3 Remedies to torsional problems (rare with DC drives) . 91
A.4.4 Torque pulsation . 91
A.5 Operational modes . 91
A.5.1 General . 91
A.5.2 Torque/speed characteristics . 92
A.5.3 Considerations of drive regeneration . 93

– 4 – IEC 61800-1:2021 © IEC 2021
A.6 Acoustic noise . 93
A.7 Service life of the motor insulation system . 93
A.8 Shaft voltages . 94
A.9 New drive systems . 94
Annex B (informative) Line-side considerations . 95
B.1 General . 95
B.2 AC power source earthing . 95
B.3 Introduction to harmonics and inter-harmonics . 96
B.4 Results for typical converters phase control . 98
B.4.1 General . 98
B.4.2 Square wave line current . 99
B.4.3 Trapezoidal line current . 99
B.4.4 Current harmonic with DC current ripple . 99
B.4.5 Diode rectifiers . 101
B.4.6 Diode rectifiers without DC link inductance . 102
B.4.7 General . 104
B.5 Example of assessment of harmonic effect of a PDS . 104
B.6 Attenuation of emission of harmonics . 105
B.7 Commutation notches . 106
B.8 Protection against voltage dips and short interruptions . 108
Annex C (informative) Auxiliary equipment . 110
C.1 General . 110
C.2 Transformers . 110
C.2.1 General . 110
C.2.2 Voltage . 110
C.2.3 Codes . 110
C.2.4 Provide continuity of service for installations prone to nuisance
grounding . 110
C.2.5 Line voltage unbalance . 111
C.2.6 Reduction of converter input harmonic currents . 111
C.2.7 Reduction of prospective short-circuit current at converter input . 111
C.2.8 Pulse number . 111
C.3 Reactors . 111
C.4 Switchgear . 112
Annex D (informative) Control strategies . 113
D.1 General . 113
D.2 Control configurations . 113
D.2.1 General . 113
D.2.2 Basic structure . 114
D.2.3 Optional facilities . 114
D.2.4 Digital and analog control . 116
D.3 Control modes . 117
D.3.1 Operating modes . 117
D.3.2 Loop control . 117
D.3.3 Accuracy and performance . 117
D.4 Steady state and transient performance . 118
D.4.1 Time response . 118
D.4.2 Response time . 118
D.4.3 Performances of particular functions . 118

D.4.4 Speed ratio control . 118
D.5 List of relevant control parameters . 120
D.5.1 BDM/CDM control parameters . 120
D.5.2 Motor parameters . 121
D.5.3 Mechanical parameters . 121
D.5.4 Supply parameters. 121
D.6 Structures . 121
D.6.1 Functional structures . 121
D.6.2 Hardware structures . 123
D.6.3 Important drive performances issues . 123
D.6.4 Effect of torsional elasticity . 123
D.6.5 Effects of the backlash . 125
Annex E (informative) Protection. 126
E.1 General . 126
E.2 Equipment availability . 126
E.2.1 General . 126
E.2.2 Equipment protection circuits . 126
E.2.3 Types of equipment alarms and faults. 126
E.2.4 Alarm and fault listing . 127
E.3 System protection (features and devices) . 128
E.4 Protection of the drive system . 128
E.4.1 Protection included in the BDM/CDM . 128
E.4.2 Specific motor protection . 129
E.4.3 Specific transformer protection . 129
Annex F (informative) Monitoring features . 130
F.1 General . 130
F.2 Technology . 130
Bibliography . 131

Figure 1 – PDS hardware configuration within an installation . 15
Figure 2 – Example of function diagram of a DC power drive system . 16
Figure 3 – BDM/CDM/PDS manufacturer/customer relationship . 18
Figure 4 – Operating quadrants . 22
Figure 5 – Main configurations for line–commutated converters . 36
Figure 6 – Basic configurations of self-commutated converters (choppers) . 37
Figure 7 – Overview of input and output ratings of the BDM/CDM/PDS . 40
Figure 8 – Example of operating region of a PDS . 42
Figure 9 – Overload cycle example . 44
Figure 10 – Deviation band . 47
Figure 11 – Time response following a step change of reference input, no change in
operating variables . 50
Figure 12 – Time response following a change in an operating variable – No reference
change. 51
Figure 13 – Time response following a reference change at specified rate . 52
Figure 14 – Frequency response of the control – Reference value as stimulus . 53
Figure 15 – Example of relationship of IEC 61800-7 (all parts) to control system
software and the BDM/CDM/PDS . 70

– 6 – IEC 61800-1:2021 © IEC 2021
Figure 16 – Measuring circuit of PDS . 76
Figure A.1 – Torque and power output of a DC motor . 92
Figure B.1 – Thyristor rectifier with a large DC inductance . 99
Figure B.2 – Square wave line current . 99
Figure B.3 – Trapezoidal line current . 99
Figure B.4 – Major harmonic components of supply current considering square wave
line current with idealized DC ripple . 100
Figure B.5 – Power converter with a diode rectifier on the line-side and a DC/DC
converter . 101
Figure B.6 – Input voltage and current waveforms of the diode rectifier . 101
Figure B.7 – Line-side voltage and current distortion factors of a diode rectifier . 102
Figure B.8 – Diode rectifier without DC link inductance . 102
Figure B.9 – Input harmonic current (AC and DC) . 103
Figure B.10 – Input current distortion . 103
Figure B.11 – Example of simple structure . 105
Figure B.12 – 3-phase, 6-pulse bridge converter . 106
Figure B.13 – Commutation notches with a 3-phase, 6-pulse bridge converter . 107
Figure B.14 – Equivalent circuit for assessment of commutation notch mitigation . 108
Figure D.1 – Block diagram of feedback control system containing all basic elements . 113
Figure D.2 – Functional block diagram . 115
Figure D.3 – Master/follower drive system . 119
Figure D.4 – Zero current inversion time . 120
Figure D.5 – Structure of a drive system . 122
Figure D.6 – Mechanical diagram . 124
Figure D.7 – Simple stability criterion . 125
Figure E.1 – Protection classification . 127

Table 1 – System elements . 14
Table 2 – Converters and circuits elements . 19
Table 3 – Drive system operating characteristics . 20
Table 4 – Input ratings of BDM/CDM/PDS . 23
Table 5 – Output ratings of BDM/CDM . 27
Table 6 – Motor ratings . 29
Table 7 – Control system and variables . 32
Table 8 – Type of tests . 33
Table 9 – Standard rated voltages as specified in IEC 60038 . 40
Table 10 – Example of reduced maximum continuous load as a function of an overload . 43
Table 11 – Maximum deviation bands (%) . 47
Table 12 – PDS protection functions . 55
Table 13 – Environmental service conditions . 61
Table 14 – Limit of temperature of the cooling medium for indoor equipment . 62
Table 15 – Definitions of pollution degree . 62
Table 16 – Environmental vibration limits for fixed installation. 63
Table 17 – Environmental shock limits for fixed installation . 63

Table 18 – Storage and transport limits . 65
Table 19 – Transportation vibration limits. 66
Table 20 – Transportation limits of free fall . 66
Table 21 – Environmental service tests . 68
Table 22 – Tests overview . 72
Table 23 – Classification of commutation made by visual observation . 74
Table 24 – Shock test . 84
Table 25 – Information requirements . 86
Table B.1 – Minimum R requirements for low voltage systems . 97
SC
Table B.2 – Harmonic current – 6-pulse conversion . 98
Table B.3 – Harmonic results for the drive contribution . 105
Table D.1 – Typical control configurations . 114
Table D.2 – Composition of the typical control configurations . 116
Table D.3 – Drive system control strategies . 118

– 8 – IEC 61800-1:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS –

Part 1: General requirements –
Rating specifications for low voltage
adjustable speed DC power drive systems

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
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International Standard IEC 61800-1 has been prepared by subcommittee 22G: Adjustable
speed electric power drive systems (PDS), of IEC technical committee 22: Power electronic
systems and equipment.
This second edition cancels and replaces the first edition published in 1997. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the clause structure has been harmonized with IEC 61800-2;
b) Clause 2 has been updated;
c) Clause 3 has been updated including fundamental definitions to be used across IEC 61800
(all parts);
d) Clause 4 has been updated with respect to:

1) description of the basic topology for BDM/CDM/PDS (4.2);
2) ratings and performance (4.3 and 4.4);
3) reference to applicable standards within the IEC 61800 series with respect to EMC
(IEC 61800-3), general safety (IEC 61800-5-1), functional safety (IEC 61800-5-2), load
duty aspects (IEC TR 61800-6), communication profiles (IEC 61800-7 series),power
interface voltage (IEC TS 61800-8), and ecodesign energy efficiency standards
(IEC 61800-9) to avoid conflicting requirements (4.5, 4.6, 4.7, 4.10, 4.11, 4.12);
4) update of requirement for ecodesign (4.8);
5) update of requirement for environmental evaluation (4.9);
6) implementation of requirement for explosive atmosphere (4.13);
e) Clause 5 has been updated with test requirement in order to provide a clear link between
design requirement and test requirement;
f) Clause 6 has been updated to harmonize the marking and documentation requirement within
IEC 61800 (all parts);
g) the Annexes have been updated.
The text of this International Standard is based on the following documents:
FDIS Report on voting
22G/430/FDIS 22G/433/RVD
Full information on the voting for the approval of this document can be found in the report on
voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61800 series, published under the general title Adjustable speed
electrical power drive systems, can be found on the IEC website.
In this document, the terms in italics are defined in Clause 3.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

– 10 – IEC 61800-1:2021 © IEC 2021
INTRODUCTION
0.1 General
This document is part of the IEC 61800 series specifying requirements for adjustable speed
electrical power drive systems (PDSs). Since the publication of the first edition of IEC 61800-1,
several documents of the IEC 61800 series have been developed and maintained, which has
resulted in outdated references and conflicting requirements across the IEC 61800 series.
This document contains general requirements for PDSs intended to feed DC motors and with
rated converter input voltages (line-to-line voltage) up to and including 1 000 V AC.
0.2 Consistency of requirement
This document specifies requirements for PDSs under its scope for the identified topics not
covered by any other of the standards in the IEC 61800 series.
The following requirements are covered by other standards in the IEC 61800 series:
• AC PDS requirements are covered by IEC 61800-2;
• EMC requirements are covered by IEC 61800-3;
• general safety requirements are covered by IEC 61800-5-1;
• functional safety requirements are covered by IEC 61800-5-2;
• type of load duty guidance is covered by IEC TR 61800-6;
• interface and use profiles requirements are covered by IEC 61800-7 (all parts);
• power interface voltage specification is covered by IEC TS 61800-8;
• ecodesign energy efficiency requirements of drive system are covered by IEC 61800-9 (all
parts).
NOTE IEC 61800-9 series only provides requirements for AC PDS. Requirements for the Energy Efficiency
classification, the set of power losses limits and measurement methods from IEC 61800-9-2 cannot be directly
applicable to DC PDS. The Extended product approach (EPA) and Semi analytic Model (SMA) from IEC 61800-9-1
are in principle applicable to DC PDS.
Generally, this document provides a basic description of topics and refers to the relevant
standard for specific requirement. This is done in order to ensure consistency and avoid
conflicting requirement within IEC 61800 (all parts) as well as minimize future maintenance of
the documents.
As a result of the development of the IEC 61800 series of standards, the need to reference
documents outside the series has decreased.
0.3 Tool for agreement between customer and manufacturer
This document is intended to be used to create a comprehensive list of requirements to be used
as a specification between customer and manufacturer. The requirement in this document is in
...