基于Hilbert算法的HVDC线路故障识别  

Fault Recognition of HVDC Lines Based on Hilbert Algorithm

作　　者：邹怡 皮俊 ZOU Yi;PI Jun(State Grid Hubei Jingzhou Power Supply Company,Jingzhou 434000,China)

机构地区：[1]国网湖北省电力有限公司荆州供电公司,湖北荆州434000

出　　处：《电气开关》2020年第5期55-57,63,共4页Electric Switchgear

摘　　要：针对高压直流输电线路中出现的不同故障类型,采用传统的方法对故障进行分类耗时长、精确度不高,为了解决这一问题,本文提出基于Hilbert算法的高压直流输电线路故障识别方法,通过对故障信号进行获取,对信号中的特征信号进行有效提取,对提取到的有效信号利用Hilbert变换方法进行相关分析,根据分析结果,确定故障发生类型,并及时采取有效的保护措施,在短时间内实现线路的保护工作以及切除故障,最后,通过仿真表明该算法能够有效对线路故障进行识别。In view of the different types of faults that occur in HVDC transmission lines,the traditional method is used to classify the faults,which takes a long time and has low accuracy.In order to solve this problem,this paper proposes a Hilbert algorithm-based fault identification method for HVDC transmission lines.By acquiring the fault signal,the characteristic signal in the signal is effectively extracted,and the extracted effective signal is analyzed by the Hilbert transform method.According to the analysis result,the type of fault occurrence is determined,and effec-tive protective measures are taken in time.Realize the protection of the line and remove the fault within the time.Fi-nally,the simulation shows that the algorithm can effectively identify the line fault.

关 键 词：高压直流输电 输电线路 故障识别 Hilbert算法 

分 类 号：TM72[电气工程—电力系统及自动化]