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BSI PD IEC TS 63102:2021

BSI PD IEC TS 63102:2021

$167.15

Grid code compliance assessment methods for grid connection of wind and PV power plants

Published By Publication Date Number of Pages
BSI 2021 42
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This technical specification highlights recommended technical methods of grid code compliance assessment for grid connection of wind and PV power plants as the basic components of grid connection evaluation. The electrical behaviour of wind and PV power plants in this technical specification includes frequency and voltage range, reactive power capability, control performance including active power based control and reactive power based control, fault ride through capability and power quality.

Compliance assessment is the process of determining whether the electrical behaviour of wind and PV power plants meets specific technical requirements in grid codes or technical regulations. The assessment methods include compliance testing, compliance simulation and compliance monitoring. The input for compliance assessment includes relevant supporting documents, testing results and validated simulation models, and continuous monitoring data. The scope of this technical specification only covers assessment methods from a technical aspect; processes related to certification are not included.

This technical specification is applicable to wind and PV power plants connected to the electrical power grid.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
7 FOREWORD
9 1 Scope
2 Normative references
3 Terms, definitions, abbreviations and subscripts
3.1 Terms and definitions
10 3.2 Abbreviations and subscripts
3.2.1 Abbreviations
11 3.2.2 Subscripts
4 Symbols and units
12 5 General specifications
5.1 General
5.2 Type tested units – Wind turbines and PV inverters
5.3 Projects – Wind and PV power plants
5.4 Compliance assessment methods
13 6 Operating area
6.1 General
6.2 Frequency range
6.2.1 Documentation
6.2.2 Method 1: Monitoring
Tables
Table 1 – Overview of assessment methods
14 6.3 Voltage range
6.3.1 Documentation
6.3.2 Method 1: Simulation
6.3.3 Method 2: Monitoring
6.4 Reactive power capability
6.4.1 Documentation
6.4.2 Method 1: Simulation
15 6.4.3 Method 2: Monitoring
7 Control performance
7.1 General
7.2 Active power based control
7.2.1 Documentation
Figures
Figure 1 – An example of PQ diagram
16 7.2.2 Method 1: Plant field testing
17 Figure 2 – Example of figure for active power ramp rate test
Figure 3 – Example of figure for set point test of active power
18 Figure 4 – Example of figure for frequency control test
Table 2 – Example table for maximum variation value of active power
19 7.2.3 Method 2: Monitoring
7.2.4 Method 3: CHIL testing
Table 3 – Example of table for performance index of set point test
Table 4 – Example of table for performance index of frequency control response
20 Figure 5 – Example of figure for frequency control test with simulated frequency variation
21 7.3 Reactive power based control
7.3.1 Documentation
Table 5 – Example of table for functionality test of frequency control
Table 6 – Example of table for coordination functionalityof active power set point and frequency control
22 7.3.2 Method 1: Plant field testing
23 Figure 6 – Example figure for set point control of reactive poweras control reference (reactive power control mode)
24 Figure 7 – Example of figure for set point control of voltageas control reference (voltage control mode)
Table 7 – Example of table for reactive power control testing
25 7.3.3 Method 2: Monitoring
7.3.4 Method 3: CHIL testing
Figure 8 – Example of figure for voltage control test
Table 8 – Example of table for voltage control testing
26 8 Fault ride through
8.1 General
8.2 Documentation
Table 9 – Example of table for voltage control test
27 8.3 Method 1: Simulation
Figure 9 – Layout of grid with symmetrical fault
Figure 10 – Layout of grid with unsymmetrical fault
28 Table 10 – Recommended scenario of pre-fault operation modes
Table 11 – Recommended scenario of grid fault types and under/over voltage levels
29 8.4 Method 2: Monitoring
Figure 11 – Example of active power recovery
Table 12 – Example table for fault ride through simulation results
30 9 Power quality
9.1 General
9.2 Current harmonics and inter-harmonics
9.2.1 Documentation
9.2.2 Method 1: Plant Field testing
31 9.3 Flicker
9.3.1 Documentation
9.3.2 Method 1: Plant field testing
Figure 12 – Equivalent circuit of the grid and the power plant
32 Annex A (informative)Monitoring of electrical performance of wind and PV power plants
A.1 Overview
A.2 Responsibilities
A.3 Basic principles
A.4 Monitoring signals
33 A.5 Monitoring hardware
Table A.1 – Monitoring signals
34 Annex B (informative)Controller hardware in the loop (CHIL) testing setup
B.1 General
B.2 Power plant modelling
B.3 Set-up
35 Figure B.1 – Test bench diagram
Table B.1 – CHIL system boundaries
Table B.2 – Signal list
36 Annex C (informative)Harmonic simulation for wind and PV power plants
C.1 General
Figure C.1 – Ideal harmonic current source illustrationfor harmonic distortion calculation
37 C.2 General simulation methods
Figure C.2 – Converter harmonic model as a Norton/Thevenin equivalent circuit
Figure C.3 – Norton equivalent harmonic current source illustrationfor network harmonic distortion calculation
38 Figure C.4 – Power electronics average model Norton equivalent circuit representation
39 Annex D (informative)Control performance index
Figure D.1 – Performance index of active and reactive power based control
40 Bibliography

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BSI PD IEC TS 63102:2021
$167.15