±500 kV换流站交流滤波器失谐特性分析  

Analysis of Detuning Characteristics of AC Filters in A±500 kV Converter Station

作　　者：陈慧 刘宁[1] Chen Hui;Liu Ning(QuJing Bureau of CSG EHV Power Transmission Company,QuJing,YunNan 655000,China)

机构地区：[1]中国南方电网公司超高压输电公司曲靖局,云南曲靖655000

出　　处：《云南电力技术》2024年第2期92-95,99,共5页Yunnan Electric Power

摘　　要：换流阀运行时会产生大量特征谐波,需在换流站交流场配置滤波器解决。该文结合南方电网公司某直流换流站发生的13次谐波失谐保护动作事件,首先分析了失谐保护动作的特性和谐波电流产生的原因;然后探讨了B型交流滤波器失谐保护定值整定问题,提出了针对换流站交流滤波器13次失谐动作特性的改进措施。The operation of the converter valve will generate a large number of characteristic harmonics,which need to be solved by configuring filters in the AC field of the converter station.This article combines the 13th harmonic detuning protection action event that occurred at a DC converter station of Southern Power Grid Company,and first analyzes the characteristics of the detuning protection action and the reasons for the generation of harmonic current;Then,the problem of setting the detuning protection value for B-type AC filters was discussed,and improvement measures were proposed for the 13 times detuning action characteristics of AC filters in converter stations.

关 键 词：换流阀 交流滤波器 谐波 失谐告警 阻抗偏移 

分 类 号：TM74[电气工程—电力系统及自动化]