Analysis of Photovoltaic Power Generation System Low Voltage Ride through Control during Asymmetric Fault

摘要：

　　The electromagnetic transient model of photovoltaic power generation system is established based on PSCAD/EMTDC platform. The mechanism that 100Hz fluctuations appearing of PV output power and PV array operating point during asymmetric fault are simulated and theoretical analyzed. The paper proposes a positive and negative sequence separation control strategy, to filter the negative sequence current, making PV output current do not contain negative sequence component and outputting standard sinusoidal current waveform during asymmetric fault. The paper also proposes a DC voltage fluctuation suppression control strategy, to eliminate the DC voltage fluctuations and make the PV array operating point stable. Finally, simulation verification is made on PSCAD/ EMTDC platform.

关键词： Photovoltaic power generation low voltage ride through asymmetric fault positive and negative sequence separation control DC voltage fluctuation suppression control

作者: WANG Jin ZHANG Jinhua HAO Zhiguo

作者单位: Shandong Electric Power Dispatching and Control Center,Jinan 250001,China Xian Jiaotong University,Xian 710049,China

会议类型: 国际会议

会议名称: 2016中国国际供电会议(CICED2016)

会议地点: 西安

会议语种:英文

页码: 1-4

在线出版日期: 2016-09-01（万方平台首次上网日期，不代表论文的发表时间）