CLC/TR 50669:2017
(Main)Investigation Results on Electromagnetic Interference in the Frequency Range below 150 kHz
Investigation Results on Electromagnetic Interference in the Frequency Range below 150 kHz
Following to [1, 2, 3] having proceeded with the collection of related information, with this Technical Report, further extended information is provided including: - the given EMC problems in the frequency range 2 kHz - 150 kHz, concerning EMC between electrical equipment in general as well as EMC between non-mains communicating equipment / systems (NCE) and mains communicating systems (MCS) as a particular issue - the given situation of related emissions in the grid, with other measurement results - EMI cases and related investigation results - new findings on parameters to be considered when dealing with EMC in this frequency range, in particular related to - the impact of the network impedance and its variation over time on the more or less disturbing effect of emissions in this frequency range - the behaviour of emissions in this frequency range over time and the increasing need for performing also time domain measurements for comprehensively evaluating emissions and their disturbance potential - the actual standardisation situation - needs for the future, concerning - measurement of related emissions - investigation on the impedance of the grid / in installations over time - closing gaps in standardisation - installation guidelines and possibly regulatory measures related to the ageing effect. In light of different positions on and in evaluating related EMC problems, with additional measurement results concerning emission levels in the supply network and results from investigations of additional proven EMI cases, the given problems are highlighted in more detail and recommendations for what to do in the future are provided.
Untersuchungsergebnisse zu elektromagnetischen Interferenzen im Frequenzbereich unter 150 kHz
Résultats des études réalisées sur le brouillage électromagnétique dans la plage des fréquences inférieures à 150 kHz
Rezultati študije elektromagnetnih interferenc v frekvenčnem območju pod 150 kHz
V skladu s točkami [1, 2, 3] in na podlagi nadaljnjega zbiranja povezanih informacij so v tem tehničnem poročilu podane naslednje podrobne informacije, ki vključujejo:
– težave z elektromagnetno združljivostjo v frekvenčnem območju od 2 kHz do 150 kHz, ki se nanašajo na elektromagnetno združljivost med električno opremo na splošno ter elektromagnetno združljivost med neomrežno komunikacijsko opremo/sistemi (NCE) in omrežnimi komunikacijskimi sistemi (MCS) kot posebno težavo;
– stanje povezanih emisij v omrežju v danem trenutku, z drugimi rezultati meritev;
– primere elektromagnetnih motenj in povezani rezultati preiskave;
– nove ugotovitve o parametrih, ki jih je treba upoštevati pri obravnavanju elektromagnetne združljivosti v tem frekvenčnem območju, zlasti glede:
a) vpliva omrežne impedance in njene spremembe v časovnem obdobju na bolj ali manj moten učinek emisij v tem frekvenčnem območju,
b) obnašanja emisij v tem frekvenčnem območju v določenem časovnem obdobju in naraščajoče potrebe po opravljanju tudi meritev časovne domene za celovito oceno emisij in njihovih možnosti za povzročanje motenj;
– dejansko stanje standardizacije;
– nadaljnje potrebe glede:
a) meritve povezanih emisij,
b) preverjanja impedance v omrežju/napravah v določenem časovnem obdobju,
c) zapiranja vrzeli pri standardizaciji,
d) smernic za vgradnjo in morebitnih regulativnih ukrepov v zvezi z učinkom staranja.
Glede na različne položaje pri ocenjevanju povezanih težav elektromagnetne združljivosti z dodatnimi rezultati meritev ravni emisij v omrežju oskrbe in rezultati preiskav dodatnih dokazanih primerov elektromagnetnih motenj so omenjene težave podrobneje obravnavane in podana so priporočila glede nadaljnjih ustreznih ukrepov.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2018
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Investigation Results on Electromagnetic Interference in the Frequency Range below
150 kHz
Ta slovenski standard je istoveten z: CLC/TR 50669:2017
ICS:
33.100.10 Emisija Emission
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL REPORT CLC/TR 50669
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
December 2017
ICS 33.100.10
English Version
Investigation Results on Electromagnetic Interference in the
Frequency Range below 150 kHz
Résultats des études réalisées sur le brouillage Untersuchungsergebnisse zu elektromagnetischen
électromagnétique dans la plage des fréquences inférieures Interferenzen im Frequenzbereich unter 150 kHz
à 150 kHz
This Technical Report was approved by CENELEC on 2017-09-11.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey 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
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC/TR 50669:2017 E
Contents Page
European foreword . 10
Introduction . 11
1 Scope . 12
2 General . 12
3 Specific situation in the frequency range 2 kHz – 150 kHz . 12
4 Dimension of the EMC problem & Environment . 15
5 Situation of emission levels and EMI. 20
6 Specific EMC issues . 25
6.1 General . 25
6.2 MCS robustness. 25
6.3 The impedance behaviour . 27
6.3.1 General . 27
6.3.2 Variable impedance characteristic and its possible effects . 27
6.3.3 Impedance values, measurement and calculation . 28
6.3.4 Summary . 34
6.4 Long-term effects of EMI . 35
6.4.1 General . 35
6.4.2 Thermal impact on electronic components . 36
6.4.3 Increase of emissions due to ageing . 38
6.4.4 Summary . 38
7 Measurement issues . 38
7.1 General . 38
7.2 Status of standardisation . 39
7.3 Characteristics of measurement quantities and requirements . 41
7.3.1 Classification of higher frequency phenomena . 41
7.3.2 Types of application . 42
7.3.3 General requirements . 42
7.4 Summary . 43
8 Emissions - Measurement and test results . 44
8.1 General . 44
8.2 Measurement and test results . 44
8.2.1 Large photovoltaic inverter installations . 44
8.2.2 Small PV inverter installations . 48
8.2.3 Lamps with electronic ballast . 51
8.2.4 Electric vehicle charging . 57
8.2.5 Frequency-controlled heat pump . 62
8.2.6 Cola spender . 63
8.2.7 DVD player . 64
8.2.8 TV box . 65
8.2.9 Beer cooler . 66
8.2.10 Travelling circuses . 66
8.2.11 Power supply to fibre switches . 67
8.2.12 Power supply to a network router . 68
8.2.13 Plugin charger . 68
8.2.14 Single-phase PSU pretending a 3-phase problem . 69
8.2.15 Power supply to a PLC modem . 70
8.2.16 Microwave oven . 70
Desktop power supply with aPFC . 71
8.2.17
8.3 Summary . 71
9 EMI cases - Measurement and test results . 72
9.1 Introduction . 72
9.2 General . 72
9.3 EMI due to conducted emissions . 73
9.3.1 EMI to NCE . 73
9.3.2 EMI with MCS . 80
9.4 EMI due to radiated field strength from conducted NIE / signals . 98
9.4.1 General . 98
9.4.2 Radiated EMI to telecom equipment . 98
9.4.3 Radiated EMI in higher frequency ranges . 100
9.4.4 Descriptions of EMI cases . 102
9.5 Summary . 106
10 Standardisation, Legislation & Regulation . 109
10.1 General . 109
10.2 Present legislative & regulation situation . 111
10.3 Present standardisation situation . 114
10.4 Summary - Needs for the future . 116
11 Conclusions . 118
12 Recommendations . 120
Annex A MCS robustness A set of basic principles for field proven effective PLC systems
operating in the CENELEC A-Band . 122
Annex B Measurement issues: Frequency-domain vs. Time-domain analysis . 123
B.1 Frequency-domain methods . 123
B.1.1 General . 123
B.1.2 Frequency analyser based on DFT principle . 123
B.1.3 Analyser based on heterodyne principle . 130
B.2 Time-domain analysis . 137
Annex C Comparison of measurement methods for the frequency range 2 kHz – 150 kHz . 141
C.1 General . 141
C.2 Measurement Methods under Test . 141
C.3 Signals for comparison purposes . 141
C.3.1 Synthetic waveform . 141
C.3.2 Battery Electric Vehicle Charger . 142
C.3.3 Photovoltaic inverter and PLC-signal . 142
C.4 Measurement setup . 143
C.5 Summary of results . 143
Annex D Acronyms and abbreviations . 147
Bibliography .
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