交流滤波器频繁投入引发直流换相失败预测动作问题分析  

Analysis on the Predictive Action Problem of DC Commutation Failure Caused by Frequent Input of AC Filter

作　　者：何茂慧 冯轩 蒋浩然 吴磊 HE Maohui;FENG Xuan;JIANG Haoran;WU Lei(Extra-high Voltage Branch Company,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]国网江苏省电力有限公司超高压分公司,江苏南京211100

出　　处：《电工技术》2022年第23期215-217,共3页Electric Engineering

摘　　要：换相失败预测控制是一种防止超特高压直流输电系统逆变侧发生换相失败的有效手段。在工程应用中,交流滤波器组的投入和退出造成交流系统异常扰动,并进一步引发直流换相失败预测动作。通过对交流滤波器组断路器机械特性的研究,分析了其在现场实际中发生偏移从而与选相合闸装置参数整定值不匹配所造成的后果,并提出了针对性的意见和建议。The commutation failure predictive control is an effective method to prevent commutation failure on the inverter side of the UHV DC transmission system.In engineering applications,the input and withdrawal of the AC filter bank causes abnormal disturbances in the AC system,and further triggers the DC commutation failure prediction action.Through the study of the mechanical characteristics of the AC filter bank circuit breaker,the consequences caused by the deviation in the actual field and the mismatch with the parameter setting value of the phase selection making device are analyzed,and targeted opinions and suggestions are put forward.

关 键 词：直流控制系统 交流滤波器 换相失败 断路器 选相合闸 

分 类 号：TM721.1[电气工程—电力系统及自动化]