Consecutive Commutation Failure Mitigation Caused by AC Filters Switching

2019 4th Asia Conference on Power and Electrical Engineering

能源学;电工学

Liu, Meng^1 ; Yang, Chao^1 ; Shi, Fangfang^1 ; Zhang, Bing^2 ; Wang, Liang^2 ; Sun, Mengmeng^3 ; Wang, Xin^1

State Grid Shandong Electric Power Research Institute, Shandong Province, Jinan

250002, China^1

State Grid Shandong Electric Power Company, Jinan

250001, China^2

Shandong Zhongshiyitong Group Co., Ltd., Jinan

250003, China^3

关键词: AC filters;    Ac voltage;    Commutation failure;    Mathematics model;    Over-voltages;    Paper analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/486/1/012035/pdf
DOI  :  10.1088/1757-899X/486/1/012035

来源: IOP

【 摘 要 】

AC filter bank switching in the HVDC inverter station may cause harmonics which leads to commutation failure. This paper analysis the characteristics of AC filter switching and build the transient progress circuit and mathematics model. And the time-response solution of AC filter overvoltage is acquired, the AC voltage magnitude decrease and distortion can be calculated. Commutation caused by these reasons was analyzed. And a consecutive commutation failure mitigation method is proposed. The algorithm was verified in the PSCAD/EMTDC.