宁丙炎,邓超然,杨东海,郭宝甫,徐军.多变流器并联系统零序环流控制方法分析[J].电测与仪表,2017,54(23):. Ning Bingyan,Deng Chaoran,Yang Donghai,Guo Baofu,Xu Jun.The analysis of zero-sequence circulating current in parallel system of converter[J].Electrical Measurement & Instrumentation,2017,54(23):.
多变流器并联系统零序环流控制方法分析
The analysis of zero-sequence circulating current in parallel system of converter
The development of new energy technology requires the power electronic equipment to increase power constantly, which leads to the generation of parallel system of power electronic equipment. In this paper, the reason of zero-sequence current of parallel converter was analyzed by analyzing the multiple parallel converter system mean value model. Then two methods of reducing zero-sequence current was proposed. To further analyze the effect of the two methods, a SIMULINK model was established. The simulation results show that both the PI control and deadbeat control can suppress the zero-sequence flow. But the control effect of PI control is more stable and more suitable for practical application.
