Adjustable speed electrical power drive systems - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification

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 à vitesse variable - Partie 9-2: Ecoconception des systèmes moteurs - Détermination et classification de l’efficacité énergétique

Električni pogonski sistemi z nastavljivo hitrostjo - 9-2. del: Okoljsko primerna zasnova za motorske sisteme - Določitev in klasifikacija energijske učinkovitosti

General Information

Status
Not Published
Publication Date
09-Jun-2024
Technical Committee
Drafting Committee
Current Stage
4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
Start Date
10-Feb-2023
Completion Date
10-Feb-2023

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Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 61800-9-2:2023
01-januar-2023

Električni pogonski sistemi z nastavljivo hitrostjo - 9-2. del: Okoljsko primerno

načrtovanje motornih pogonskih sistemov - Kazalniki energijske učinkovitosti
ugotavljanje in razvrstitev

Adjustable speed electrical power drive systems - Part 9-2: Ecodesign for motor systems

- Energy efficiency determination and classification

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 à vitesse variable - Partie 9-2: Ecoconception

des entraînements électriques de puissance, des démarreurs de moteurs, de

l'électronique de puissance et de leurs applications entraînées - Indicateurs d'efficacité

énergétique pour les entraînements électriques de puissance et les démarreurs de
moteurs
Ta slovenski standard je istoveten z: prEN IEC 61800-9-2:2022
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
oSIST prEN IEC 61800-9-2:2023 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 61800-9-2:2023
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oSIST prEN IEC 61800-9-2:2023
22G/463/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61800-9-2 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-11-18 2023-02-10
SUPERSEDES DOCUMENTS:
22G/445/CD, 22G/460/CC
IEC SC 22G : ADJUSTABLE SPEED ELECTRIC POWER DRIVE SYSTEMS (PDS)
SECRETARIAT: SECRETARY:
United States of America Mr Christopher Johnson
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 2, SC 121A
Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for Vote
(CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.
TITLE:

Adjustable speed electrical power drive systems – Part 9-2: Ecodesign for motor systems – Energy efficiency

determination and classification
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:

Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this

electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.

You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without

permission in writing from IEC.
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oSIST prEN IEC 61800-9-2:2023
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CONTENTS

CONTENTS ............................................................................................................................ 1

FOREWORD ........................................................................................................................... 9

INTRODUCTION ................................................................................................................... 11

1 Scope ............................................................................................................................ 12

2 Normative references .................................................................................................... 13

3 Terms, definitions, symbols and abbreviated terms ........................................................ 14

3.1 Terms and definitions ............................................................................................ 14

3.2 Symbols and abbreviated terms ............................................................................ 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 ........................................................................................... 31

4.8 Consistency of IE and IES classes ........................................................................ 31

4.9 Determination of the IES class of a PDS by application of "reference" and

"test" devices and guidance for the manufacturers ................................................ 32

5 Determination of CDM, motor and PDS loss by calculation ............................................ 33

5.1 General ................................................................................................................. 33

5.2 CDM losses .......................................................................................................... 34

5.2.1 General procedure and definition of the CDM and the test load ..................... 34

5.2.2 Overall CDM losses ....................................................................................... 36

5.2.3 Loss determination of CDMs composed by combination of submodules ......... 37

5.2.4 Validation of loss calculation method ............................................................. 39

5.3 Motor losses ......................................................................................................... 39

5.3.1 General ......................................................................................................... 39

5.3.2 Additional harmonic losses of three-phase asynchronous motors fed by

a CDM ........................................................................................................... 39

5.3.3 Motor loss data .............................................................................................. 40

5.4 Power Drive System (PDS) ................................................................................... 40

5.4.1 PDS losses .................................................................................................... 40

5.4.2 PDS losses at different switching frequencies ................................................ 41

5.5 PDS losses for regenerative operation .................................................................. 42

5.6 Losses of motor starters ....................................................................................... 43

6 Limits of IE and IES classes .......................................................................................... 43

6.1 General ................................................................................................................. 43

6.2 CDM ..................................................................................................................... 43

6.3 Correction factors for CDMs with modified functionality ......................................... 46

6.3.1 General ......................................................................................................... 46

6.3.2 Correction factors .......................................................................................... 47

6.3.3 Reference losses and loss determination concept for CDMs with

multiple a.c. outputs ...................................................................................... 48

6.4 Motor .................................................................................................................... 49

6.5 PDS ...................................................................................................................... 49

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7 Loss determination ........................................................................................................ 50

7.1 General ................................................................................................................. 50

7.2 Type testing of CDM or SDM for IE classification .................................................. 51

7.3 Type testing of PDS for IES classification ............................................................. 52

7.4 Determination of losses by calculation .................................................................. 52

7.4.1 CDM or SDM losses by calculation ................................................................ 52

7.4.2 PDS losses by calculation .............................................................................. 53

7.5 Determination of losses by measurement, Input-output method ............................. 53

7.5.1 Instrumentation .............................................................................................. 53

7.5.2 Test conditions .............................................................................................. 54

7.5.3 Input-output measurement of CDM losses ..................................................... 55

7.5.4 Input-output measurement of SDIM losses ..................................................... 57

7.5.5 Input-output measurement of SDOM losses ................................................... 58

7.5.6 Input-output measurement of PDS losses ...................................................... 59

7.6 Calorimetric measurement of CDM losses ............................................................. 61

7.7 Flowcharts for test procedures .............................................................................. 62

8 Requirements for the user’s documentation ................................................................... 65

8.1 General ................................................................................................................. 65

8.2 Information for selection ....................................................................................... 66

8.3 Information for determination of energy efficiency classification ............................ 66

8.4 Information on the determination of additional energy losses and part load

conditions ............................................................................................................. 66

8.4.1 General ......................................................................................................... 66

8.4.2 Losses in part load conditions ........................................................................ 66

8.4.3 Losses of accessories and options ................................................................ 67

8.4.4 Losses in stand-by mode ............................................................................... 67

8.4.5 Losses in regenerative mode ......................................................................... 67

8.4.6 Characteristics and correction factors ............................................................ 67

Annex A (informative) Losses of RCDM and example of IES class limit determination.......... 68

A.1 Relative loss tables ............................................................................................... 68

A.2 Calculation of relative losses for IES classes ........................................................ 69

A.2.1 Determination of CDM relative losses ............................................................ 69

A.2.2 Determination of Motor relative losses ........................................................... 69

A.2.3 Summation of PDS relative losses ................................................................. 70

Annex B (informative) Description of the elements of an extended product using PDS

with regard to their impact on losses.............................................................................. 71

B.1 General ................................................................................................................. 71

B.2 Losses in the mains cabling and feeding section ................................................... 71

B.3 Input filter ............................................................................................................. 73

B.3.1 High frequency EMI filter ............................................................................... 73

B.3.2 Low frequency line harmonics filter ................................................................ 73

B.4 Input converter ...................................................................................................... 74

B.4.1 General ......................................................................................................... 74

B.4.2 Diode rectifier ................................................................................................ 74

B.4.3 Active infeed converter .................................................................................. 74

B.4.4 Power factor of the input converter ................................................................ 76

B.4.5 Sub Drive Input Module (SDIM) ..................................................................... 76

B.5 d.c. link ................................................................................................................. 77

B.6 Output inverter ...................................................................................................... 78

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B.6.1 General ......................................................................................................... 78

B.6.2 Sub Drive Output Model (SDOM) ................................................................... 79

B.7 Output filter and motor cables ............................................................................... 79

B.7.1 General ......................................................................................................... 79

B.7.2 Sine wave filters ............................................................................................ 79

B.7.3 dV/dt filters and motor chokes ........................................................................ 80

B.7.4 High frequency EMI motor filters .................................................................... 81

B.7.5 Motor cables .................................................................................................. 81

B.8 Motor .................................................................................................................... 81

B.9 Mechanical load .................................................................................................... 81

B.10 Control and standby losses ................................................................................... 81

B.11 Cooling losses ...................................................................................................... 82

B.11.1 Primary cooling losses ................................................................................... 82

B.11.2 Secondary cooling losses .............................................................................. 82

Annex C (Informative) Mathematical model for CDM losses ................................................. 83

C.1 Output inverter losses ........................................................................................... 83

C.1.1 General ......................................................................................................... 83

C.1.2 Transistor on state losses .............................................................................. 83

C.1.3 Freewheeling diode on state losses ............................................................... 84

C.1.4 Transistor switching losses ............................................................................ 84

C.1.5 Freewheeling diode switching losses ............................................................. 85

C.1.6 Output inverter total losses ............................................................................ 85

C.2 Input converter losses ........................................................................................... 86

C.2.1 Active infeed converter .................................................................................. 86

C.2.2 Diode rectifier ................................................................................................ 86

C.3 Input choke losses ................................................................................................ 87

C.4 d.c. link losses ...................................................................................................... 87

C.5 Current conductor losses ...................................................................................... 88

C.6 Control and standby losses ................................................................................... 88

C.7 Cooling loss factor ................................................................................................ 88

C.8 Other CDM losses ................................................................................................. 89

Annex D (informative) Converter topology ............................................................................ 90

D.1 General ................................................................................................................. 90

D.2 Voltage source output inverter topologies different from those

mathematically described in Annex C.1 ................................................................. 90

D.3 Voltage source input converter topologies different from those

mathematically described in Annex C.2 ................................................................. 90

D.4 CDM topologies different from voltage source type ............................................... 90

Annex E (informative) Interpolation of motor losses and motor current ................................. 92

E.1 General ................................................................................................................. 92

E.2 Relative and reference values ............................................................................... 92

E.3 Motor connections and operating ranges ............................................................... 93

E.4 Interpolation of motor losses ................................................................................. 94

E.5 Interpolation of motor current ................................................................................ 97

E.6 Determination of the interpolation coefficients ....................................................... 99

E.6.1 Analytical determination................................................................................. 99

E.6.2 Numerical determination .............................................................................. 101

E.7 Typical induction motor efficiency ....................................................................... 102

Annex F (informative) Application example for loss calculations of a CDM and a PDS ....... 108

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F.1 General ............................................................................................................... 108

F.2 CDM loss determination ...................................................................................... 108

F.2.1 General ....................................................................................................... 108

F.2.2 Loss determination by two-dimensional interpolation of losses of

neighbouring loss points .............................................................................. 109

F.2.3 Loss determination by the mathematical model described in Annex C .......... 112

F.3 Loss determination of the motor .......................................................................... 114

F.4 Loss determination of the PDS ............................................................................ 115

F.5 Determination of part load factors for SDIMs ....................................................... 116

F.6 Application examples of reference losses and efficiency classes for modified

functionality ........................................................................................................ 116

F.6.1 Example 1 – IE classification of a SDIM ....................................................... 116

F.6.2 Example 2 – IE classification of a SDOM ..................................................... 117

F.6.3 Example 3 – IE classification of a CDM with regenerative capability and

sinewave output filter ................................................................................... 118

Annex G (informative) Uncertainty of loss determination method........................................ 119

G.1 General ............................................................................................................... 119

G.2 Calculation of uncertainty at randomly occurring errors ....................................... 119

G.3 Comparison of uncertainties for different loss determination methods ................. 119

Annex H (informative) Calorimetric measurement for CDM losses ...................................... 120

H.1 General ............................................................................................................... 120

H.2 Calorimeter with two chambers with air as a cooling medium .............................. 120

H.3 Calorimeter with one chamber with air as a cooling medium ............................... 121

H.4 Calorimeter with liquid as a cooling medium ........................................................ 122

Annex I (informative) PDS loss calculation above rated speed and torque ......................... 123

I.1 General ............................................................................................................... 123

I.2 Operating points above rated torque ................................................................... 123

I.3 Operating points above rated speed .................................................................... 123

I.3.1 General ....................................................................................................... 123

I.3.2 Dependency of motor losses on the CDM performance ................................ 123

I.3.3 Dependency of CDM on the motor performance ........................................... 124

I.3.4 PDS loss calculation in the field weakening range up to 200 % of rated

speed .......................................................................................................... 124

Bibliography ........................................................................................................................ 126

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) ......................................... 27

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) ................................................................................................................................ 28

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 ....................................................................... 30

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Figure 9 – Metrical relation of (a) IE classes and (b) IES classes .......................................... 32

Figure 10 – Guidance for CDM and Motor manufacturers for the usage of "test" and

"reference" devices to determine the IE/IES classes ............................................................. 33

Figure 11 – Illustration of a typical CDM and test load .......................................................... 34

Figure 12 – Relative losses p of the 9,95 kVA RCDM ................................................. 37

L,CDM

Figure 13 – Example of the relative power losses of PDS as function of speed and

torque ................................................................................................................................... 41

Figure 14 – Example of the relative power losses versus switching frequency....................... 42

Figure 15 – Example of a CDM with resistor for dissipating generated power ........................ 43

Figure 16 – Illustration of IE classes for a CDM .................................................................... 45

Figure 17 – Topology of a CDM with multiple a.c. outputs ..................................................... 48

Figure 18 – Losses of CDM or SDM are provided as the sum of the determined losses

plus the uncertainty of the determination method .................................................................. 52

Figure 19 – Input-output measurement setup for determination of CDM losses ..................... 56

Figure 21 – Input-output measurement setup for determination of SDIM losses .................... 58

Figure 22 – Input-output measurement setup for determination of SDOM losses ................... 59

Figure 23 – Input-output measurement setup for PDS losses ................................................ 60

Figure 24 – Order of PDS measurements from [1] to [8] ........................................................ 61

Figure 25 – Calorimetric measurement setup for determining CDM losses ............................ 62

Figure 26 – Determination of IE classification for CDM and loss determination for part

load operating points ............................................................................................................ 63

Figure 27 – Determination of IES classification for PDS and loss determination for part

load operating points ............................................................................................................ 64

Figure B.1 – Overview of the extended product and energy flow ........................................... 71

Figure B.2 – Equivalent circuit of the mains and mains cabling ............................................. 72

Figure B.3 – Illustration of a single-phase line harmonics filter .............................................. 73

Figure B.4 – PDS with a diode rectifier input converter ......................................................... 74

Figure B.5 – PDS with a standard AIC input converter .......................................................... 75

Figure B.6 – PDS with a F3E-AIC input converter without line choke ..................................... 75

Figure B.7 – Typical waveform of a diode rectifier line current .............................................. 76

Figure B.8 – d.c. link circuit................................................................................................... 77

Figure B.9 – d.c. link circuit with additional d.c. chokes ......................................................... 78

Figure B.10 – Output inverter of the PDS .............................................................................. 78

Figure B.11 – Motor cable and optional output filter of the PDS ............................................ 79

Figure B.12 – Typical waveform of inverter output voltage and motor voltage when

using a sine wave output filter ............................................................................................... 80

Figure E.1 – Normalized torque and speed of Ranges a and b for Connection Y or D. .......... 93

Figure E.2 – Norma
...

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