Study of protection strategy for VSC based HVDC system

Author

Liu, Hongtao ; Xu, Zheng ; Huang, Ying

Author_Institution

Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China

Volume

1

fYear

2003

fDate

7-12 Sept. 2003

Firstpage

49

Abstract

This paper studies the operation performance of a voltage source converter (VSC) based HVDC (VSC-HVDC system) system under some characteristic faulted conditions with and without protection measures. A protection strategy is proposed to enhance the continuous operation performance of the VSC-HVDC system. The strategy utilize a newly developed over-current limitation controller to suppress the VSC over- currents and use a voltage chopper to suppress over-voltages on the DC side of the VSC. Digital simulation is done to verify the validity of the proposed protection strategy.

Keywords

HVDC power convertors; HVDC power transmission; digital simulation; electric current control; overcurrent protection; overvoltage protection; power engineering computing; power system faults; power system protection; HVDC system; digital simulation; operation performance; overcurrent limitation controller; overcurrent suppression; overvoltages suppression; protection strategy; voltage chopper; voltage source converter; Choppers; Circuit faults; Control systems; Converters; HVDC transmission; Power conversion; Power system protection; Space vector pulse width modulation; Steady-state; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2003 IEEE PES

Print_ISBN

0-7803-8110-6

Type

conf

DOI

10.1109/TDC.2003.1335155

Filename

1335155