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BSI PD IEC TS 62933-2-2:2022

BSI PD IEC TS 62933-2-2:2022

$198.66

Electrical energy storage (EES) systems – Unit parameters and testing methods. Application and performance testing

Published By Publication Date Number of Pages
BSI 2022 70
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PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
7 FOREWORD
9 INTRODUCTION
10 1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
11 3.2 Abbreviated terms
4 Application of EES system
4.1 General
4.2 Class A applications
4.2.1 Frequency control
4.2.2 Primary/secondary/tertiary frequency control
12 4.2.3 Fluctuation reduction of PV and wind farms
4.2.4 Reactive-power voltage control
4.2.5 Voltage sag mitigation
4.3 Class B applications
4.3.1 Peak shaving
4.3.2 Renewable firming
13 4.3.3 Islanded grid
4.4 Class C applications
5 Parameter testing methods for application
5.1 Parameter tests
5.1.1 General
5.1.2 Actual energy capacity
5.1.3 Roundtrip efficiency
14 5.1.4 Step response time and ramp rate
5.1.5 Auxiliary power consumption
5.1.6 Self-discharge
5.1.7 SOC
5.2 Duty cycle performance tests
5.2.1 General
5.2.2 Duty cycle roundtrip efficiency
5.2.3 Reference signal tracking
16 5.3 Test items for each application
17 6 Duty cycle for specific applications
6.1 General
6.2 Frequency control
6.2.1 Frequency control duty cycle
Tables
Table 1 – Test items for each application
18 6.2.2 Primary/secondary/tertiary frequency control duty cycle
Figures
Figure 1 – Frequency control duty cycle
19 Figure 2 – Primary frequency control signal – 24 h duty cycle with 30 s discharge every half hour shown over a) 24 h and b) 2 h
20 6.2.3 Deviation control of frequency
Figure 3 – Secondary frequency control signal – 24 h duty cycle with 20 min discharge every hour shown over a) 24 h and b) 3 h
21 Figure 4 – Example of droop active power frequency control with a dead band
22 6.3 Fluctuation reduction of PV and wind farm
Figure 5 – Duty cycle of fluctuation reduction of PV (photovoltaic energy systems)
23 Figure 6 – Duty cycle of fluctuation reduction of wind farm
Figure 7 – Duty cycle of fluctuation reduction of wind farm (low standard deviation)
24 6.4 Reactive-power voltage control
Figure 8 – Duty cycle of fluctuation reduction of wind farm (average standard deviation)
Figure 9 – Duty cycle of fluctuation reduction of wind farm (high standard deviation)
25 6.5 Voltage sag mitigation
Figure 10 – Reactive-power voltage control test profile
Table 2 – Reactive-power voltage control test profile
26 Figure 11 – Voltage sag mitigation test profile (test level: 80 %)
27 Figure 12 – Voltage sag mitigation test profile (test level: 70 %)
Figure 13 – Voltage sag mitigation test profile (test level: 40 %)
28 6.6 Peak shaving
6.6.1 “One charge-one discharge” mode
Figure 14 – Voltage sag mitigation test profile (test level: 0 %)
30 6.6.2 “Two charges-two discharges” mode
Figure 15 – Duty cycle for peak shaving application of “one charge-one discharge” mode
31 6.7 Renewable firming
Figure 16 – Duty cycle for peak shaving of “two charges-two discharges” mode
32 6.8 Islanded grid
Figure 17 – Duty cycle for renewable firming mode
33 Figure 18 – Duty cycle for fluctuation reduction of renewable energy sources (power) and frequency control
Figure 19 – Duty cycle for fluctuation reduction of renewable energy sources (power) without frequency control
34 6.9 Back-up power
6.9.1 General
6.9.2 Grid outage test
6.9.3 Step load test
Figure 20 – Duty cycle without fluctuation reduction of renewable energy sources (power) or frequency control
35 6.9.4 Unbalanced load test
6.9.5 Function test
6.9.6 Grid recovery test
36 Annex A (normative) Numerical data for duty cycle
37 Table A.1 – Numerical data of Figure 1 (duty cycle of frequency control)
42 Table A.2 – Numerical data of Figure 5 (duty cycle of fluctuation reduction of PV (photovoltaic energy systems))
46 Table A.3 – Numerical data of Figure 7 (duty cycle of fluctuation reduction of wind farm (low standard deviation))
47 Table A.4 – Numerical data of Figure 8 (duty cycle of fluctuation reduction of wind farm (average standard deviation))
48 Table A.5 – Numerical data of Figure 9 (duty cycle of fluctuation reduction of wind farm (high standard deviation))
49 Table A.6 – Numerical data of Figure 17 (duty cycle for renewable firming mode)
53 Table A.7 – Numerical data of Figure 18 (duty cycle for fluctuation reduction of renewable energy sources (power) and frequency control)
58 Table A.8 – Numerical data of Figure 19 (duty cycle for fluctuation reduction of renewable energy sources (power) without frequency control)
63 Table A.9 – Numerical data of Figure 20 (duty cycle without fluctuation reduction of renewable energy sources (power) or frequency control)
68 Bibliography

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BSI PD IEC TS 62933-2-2:2022
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