Summary
This Technical Brochure (TB) describes the general principles and arrester configurations for the most common configurations and topologies of the VSC HVDC converter stations, namely bipolar and symmetrical monopolar MMC. The sources and types of overvoltages, common arrester arrangement, modeling requirements, study tools and recommendations on the required insulation margin and withstand levels for various equipment are provided.
Table of content
1. Introduction
2. Glossary
3. VSC-HVDC Converter and DC Network Topologies
3.1. Converter Topologies
3.2. DC Network Configurations
3.3. VSC DC System Earthing Methods
4. Overvoltages Affecting the VSC-HVDC
4.1. Definitions of Overvoltage Waveshapes
4.2. Temporary Overvoltages (TOV)
4.3. Slow-Front Transient Overvoltages
4.4. Fast-Front, Steep-Front and Very Fast-Front Overvoltages
4.5. Sample EMT Simulations
5. Modeling Requirements for Calculation of Overvoltages
5.1. Temporary Overvoltages
5.2. Slow-Front Overvoltages
5.3. Fast-Front, Very Fast-Front and Steep-Front Overvoltages
6. Arrester Arrangements for VSC-HVDC Converters
6.1. Introduction
6.2. Arrester Characteristics
6.3. Typical Arrester Arrangement for VSC-HVDC Converter Stations
7. Equipment Withstand Levels and Arrester Protective Margins
7.1. Equipment Withstand Levels
7.2. Air Clearances and Creepage Distances
Appendix A
A.1. Draft Document Information
References
Additional informations
| Publication type | Technical Brochures |
|---|---|
| Reference | 992 |
| Publication year | |
| Publisher | CIGRE |
| ISBN | 978-2-85873-697-3 |
| Study committees | |
| Working groups | WG B4.71 |
| File size | 6 MB |
| Pages number | 60 |
| Price for non member | 120 € |
| Price for member | Free |
Authors
Mojtaba MOHADDES (CA), Arash DARBANDI (CA), Ram Adapa (US), Bruno BISEWSKI (CA), Timo Christ (DE), Keri CLARKSON (SE), Damien FONTEYNE (UK), Konstantin FADZEYEU (SE), John GLEADOW (AU), Amit KUMAR (UK), Dharshana MUTHUMUNI (CA), Thomas WESTERWELLER (DE), Kamran SHARIFABADI (NO), Kamal SIRIWARDHANA (UK)
Corresponding Members
Alain XEMARD (FR), Øystein SAGOSEN (NO), Davor VUJATOVIC (UK)
Keywords
Insulation coordination, Voltage Source Converter, HVDC, VSC, MMC, Converter Station
