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BSI PD IEC TR 63262:2019

BSI PD IEC TR 63262:2019

$167.15

Performance of unified power flow controller (UPFC) in electric power systems

Published By Publication Date Number of Pages
BSI 2019 44
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This document provides guidelines for applying unified power flow controllers (UPFC) in power systems. It includes letter symbols, terms and definitions, principles and configurations, design rules, performance requirements for key equipment, control and protection, insulation co-ordination, system performance and tests. This technical report applies to the UPFC based on modular multi-level converter (MMC) technology, as well as UPFC based on three-level converter technology.

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PDF Pages PDF Title
2 undefined
4 CONTENTS
7 FOREWORD
9 INTRODUCTION
10 1 Scope
2 Normative references
11 3 Terms, definitions and symbols
3.1 Terms and definitions
12 3.2 Symbols
13 4 Principles and configurations
4.1 Basic principles
Figures
Figure 1 – UPFC used in a two-terminal transmission system
14 4.2 UPFC configurations
4.2.1 Basic structure
Figure 2 –UPFC power flow schematic diagram
Figure 3 – UPFC control functions
15 4.2.2 UPFC configuration in single transmission line
4.2.3 UPFC configuration in double transmission lines
Figure 4 – UPFC structure diagram
Figure 5 – UPFC configuration in single transmission line VSC
16 Figure 6 – UPFC configuration with non-common DC bus
Figure 7 – UPFC configuration with common DC bus
17 4.2.4 UPFC configuration in multiple transmission lines
5 Design rules
5.1 Proposal selection
5.2 Parameter selection and coordination
18 6 Performance requirements for key equipment
6.1 General
6.2 Voltage sourced converters (VSCs)
6.2.1 General
6.2.2 Three-level converters
Figure 8 – Typical three-level converter topology
19 6.2.3 Modular multi-level converters (MMCs)
Figure 9 – Typical MMC topology
20 6.3 Series transformer
6.3.1 General
6.3.2 Winding connection mode
Figure 10 – Single-phase voltage waveform on the AC side
21 6.3.3 Insulation level
Figure 11 – Typical structure of series transformer winding
22 6.3.4 Short-circuit capability
6.3.5 Over-excitation tolerance
6.3.6 DC biasing
6.4 Shunt transformer
6.4.1 General
6.4.2 Winding connection
23 6.4.3 On-load voltage regulation
6.4.4 DC biasing
6.4.5 Harmonics and over-excitation tolerance
Figure 12 – Typical winding structure of the shunt transformer
24 6.5 Fast bypass switch (FBS)
7 Control and protection
7.1 Control system of UPFC
7.1.1 Basic requirement
Figure 13 – Typical structure of TBS
25 7.1.2 Configuration requirements
7.1.3 Functions of control system
26 7.2 Protection system of UPFC
7.2.1 Basic requirements
7.2.2 Configuration requirements
7.2.3 Functions of protection system
27 7.3 Requirements on UPFC monitoring system
Figure 14 – UPFC protection function areas
28 7.4 Requirements on communication interfaces
8 Insulation co-ordination
8.1 Principles of insulation co-ordination
8.1.1 General
8.1.2 Insulation co-ordination procedure
29 8.1.3 Arrester protective scheme
8.2 Voltages and overvoltages in service
8.2.1 Maximum operating voltage
Tables
Table 1 – Arrester protective scheme for an MMC-UPFC
30 8.2.2 Sources of overvoltages
8.3 Determination of the required withstand voltages (Urw)
31 Figure 15 – Example of arresters protecting areas for an MMC-UPFC
Table 2 – Indicative values of ratios of required impulse withstand voltage to impulse protective level
32 9 System performance
9.1 General
9.2 Steady-state performance
9.2.1 General
9.2.2 Steady state control requirement of transmission line power
9.2.3 Steady state control requirement of reactive power compensation and voltage control
9.2.4 Overload capacity requirement
9.3 Dynamic performance
33 9.4 Fault ride-through performance
10 Tests
10.1 General
10.2 Off-site tests of main components
10.2.1 Converter valve
Table 3 – Main test items of converter valve
34 10.2.2 Fast bypass switch (FBS)
10.2.3 Transformers
Table 4 – Main test items of TBS
35 10.3 Onsite commissioning test
10.3.1 General
10.3.2 Converter energizing test
Table 5 – Main test items of transformers
36 10.3.3 Energizing test of series transformer
10.3.4 UPFC initial operational tests
10.3.5 Steady-state performance test
10.3.6 Dynamic performance test
10.3.7 Protection trip test
10.3.8 Additional control function test
10.3.9 Overload test
10.3.10 Fault ride-through test of AC system
37 Annex A (informative) Examples of typical UPFC projects
A.1 Inez UPFC project structure of U.S.A.
A.2 Kangjin UPFC project structure of South Korea
Figure A.1 – Main electrical circuit of Inez UPFC project
Figure A.2– Main electrical circuit of Kangjin UPFC project [1]
38 A.3 Marcy UPFC project structure of U.S.A.
A.4 Nanjing UPFC project structure of China
Figure A.3 – Main electrical circuit of Marcy UPFC project [1]
Figure A.4– Main electrical circuit of Nanjing UPFC project [1]
39 A.5 Shanghai UPFC project structure of China
A.6 Suzhou UPFC project structure of China
Figure A.5 – Main electrical circuit of Shanghai UPFC project [1]
Figure A.6 – Main electrical circuit of Suzhou UPFC project [1]
40 A.7 Other information for typical UPFC projects
A.8 Technical and economic evaluation for UPFC projects
Table A.1 – Main parameters of typical UPFC projects [1]
Table A.2 – Main parameters of transformers in Kangjin UPFC project
Table A.3 – Main parameters of transformers in Nanjing UPFC project
41 Annex B (informative)The difference between UPFC and other FACTS
Table B.1 – Comparison of control parameters and application of each FACTS
42 Bibliography

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BSI PD IEC TR 63262:2019
$167.15