2013•Advanced materials researchOpen access

Modeling and Fault Analysis of VSC-HVDC Supplying Passive Network

Tian Liang Zhao, Shi Wu Xiao

Abstract

VSC-HVDC (high voltage direct current based on voltage source converter) is a new HVDC transmission technology based on voltage source converter. Its converter uses thyristors with the current off capability such as IGBT or GTO. VSC-HVDC system can realize passive inverting by pulse width modulation (PWM) technique. This paper introduced the structure and the operating principle of the VSC-HVDC transmission system. In addition, we studied the mathematical model of the VSC-HVDC transmission system supplying passive network in ABC stable coordinate system and in DQ rotating coordinate system. Lastly, we built the physical model of the VSC-HVDC transmission system based on PSCAD/EMTDC simulation software. We carried on various types of fault simulation and analyzed the simulation result. The result of the paper may provide reference in the further study and application of the VSC-HVDC transmission technology in the future.

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Available abstract

Key concepts: Voltage source, High-voltage direct current, Transmission system, Thyristor, HVDC converter station, Fault (geology), Transmission (telecommunications), Pulse-width modulation