Title :
Study on commutation failure of multi-infeed HVDC system
Author :
Zhou, Changchun ; Xu, Zheng
Author_Institution :
Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
Commutation failures (CF) are very frequent dynamic events in HVDC system. A new issue arising in a multi-infeed HVDC system is whether or not all the inverters will suffer from commutation failures simultaneously. In response to different AC system disturbances, an electromagnetic transient simulation study of commutation failure based on a dynamic dual-infeed HVDC test model has been carried out in this paper. The analysis of the causes leading to commutation failures in a multi-infeed HVDC system, specifically of the voltage reduction and phase shift is given. The effect of the coupling impedance in the dual-infeed test model on the simultaneous commutation failures is also discussed.
Keywords :
DC-AC power convertors; HVDC power convertors; HVDC power transmission; commutation; invertors; power system interconnection; power system transients; power transmission faults; power transmission reliability; AC system disturbances; commutation failure study; coupling impedance; dynamic events; electromagnetic transient simulation study; inverters; multi-infeed HVDC system; phase shift; simultaneous commutation failures; voltage reduction; Control systems; Electromagnetic modeling; Equations; Failure analysis; HVDC transmission; Impedance; Inverters; System testing; Valves; Voltage;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1047228
