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TB 447 2011 B4-48 Components Testing of VSC System for HVDC Applications

The brochure gives detailed description of component stresses under steady-state condition and fault condition respectively, followed by the test philosophies. The useful test procedures are also presented.

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TABLE OF CONTENTS 

FOREWORD

1. DEFINITIONS

      1.1 Introduction

      1.2 List of Letter Symbols

      1.3 Power Semiconductor Terms

      1.4 VSC Topologies

      1.5 VSC Unit

      1.6 Valve Structure

      1.7 VSC Transmission

      1.8 Operating States

      1.9 Type Tests

      1.10 Production Tests

      1.11 Insulation Co-ordination Terms

      1.12 Power Losses

      1.13 References

2. BASIC CONFIGURATION

      2.1 Overview of the VSC System

      2.2 General Description of Power Semiconductor Devices

      2.3 Converter Topologies

      2.4 Neutral grounding arrangements

      2.5 VSC Transmission System Structure in different application fields

      2.6 References

3. FUNCTION OF THE COMPONENTS AND SUBSYSTEMS

      3.1 Introduction

      3.2 Function of the Different Components and Subsystems to be Tested

      3.3 Protection System

      3.4 References

4. STRESSES UNDER STEADY-STATE OPERATION

      4.1 General

      4.2 Valve Stress

      4.3 Interface Transformer

      4.4 VSC DC Capacitor

      4.5 Submodule DC Capacitor

      4.6 Phase Reactor

      4.7 Valve Reactor

      4.8 Smoothing Reactor

      4.9 Radio Frequency Interference Filter

      4.10 Common Mode Blocking Reactor

      4.11 References

5. STRESSES AT FAULT AND DISTURBANCES

      5.1 AC System Faults

      5.2 Internal Faults in the VSC Substation

      5.3 DC Transmission Line fault

      5.4 References

6. SPECIFIC COMPONENT STRESSES RELEVANT TO TESTING

      6.1 General

      6.2 Valve

      6.3 Interface Transformer

      6.4 VSC DC Capacitors

      6.5 Submodule DC Capacitor

      6.6 Phase Reactor

      6.7 Valve Reactor

      6.8 Smoothing Reactor

      6.9 Radio Frequency Interference Filter

      6.10 Common Mode Blocking Reactor

7. COMPONENT LOSSES

      7.1 VSC Valve Losses

      7.2 VSC DC Capacitor and Submodule DC Capacitor

      7.3 Reactors

      7.4 Filter

      7.5 Interface Transformer

      7.6 Other Losses

      7.7 References

8. COMPONENT TESTS

      8.1 VSC Valve

      8.2 Interface Transformer

      8.3 VSC DC Capacitor

      8.4 Submodule DC Capacitor

      8.5 Reactor

      8.6 Radio Frequency Interference Filter

      8.7 References

9. CONCLUSIONS

10. APPENDIX: TYPICAL VOLTAGE AND CURRENT WAVEFORMS

      10.1 Introduction

      10.2 Two-level VSC Topology (VSC Valve of „Switch‟ Type)

      10.3 Modular Multi-Level VSC Topology (VSC Valves of „Controllable Voltage Source‟ Type)