摘要
为了探究一次220 kV变电站并联无功补装置事故是否与背景谐波有关,文章从电容器国家标准运行条件耐受水平入手,考虑了背景谐波的附加影响,结合系统实际参数通过计算机仿真发现,35 kV较高的3、4、5次背景谐波是造成事故的主要诱因之一。在此基础上,文章分析了几种可能的解决方案。通过分析可见:并联无功补偿装置的参数配置一定要结合所连接点系统背景谐波特征及其系统参数综合确定,根据背景谐波选择串联电抗器的参数。
For investigating relations of the fault of shunt reactive power compensator at 220kV sub- station with background harmonies, it is found through computer simulation on the basis of withstan-ding level of operating condition of China National Capacitor Standard in this paper, consideration of additional effect of the background harmonics and combination of actual parameters of the system, that the higher harmonics of 3th ,4th ,Sth order on 35 kV busbar is one of the key incentives. On the basis of which, several kinds of possible solutions are analyzed. The mitigating measures are also dis- cussed additionally. It is shown throughout analysis that parameters configuration of shunt reactive power compensation device must be determined in the combination with harmonic feature of the con-nected system background and its system parameters, and parameters of series reactor is selected in accordance with the background harmonics.
出处
《电力电容器与无功补偿》
2013年第6期95-100,共6页
Power Capacitor & Reactive Power Compensation
关键词
谐波
电容补偿装置
谐振
危害
措施
harmonic
capacitance compensator
resonance
harm
measures
