Integrated protection based on multifrequency domain information for UHV half-wavelength AC transmission line

查看全文 作　　者：Qingping [1]Wang;Zhiqian [1]Bo;Xiaowei [1]Ma;Ming [1]Zhang;Yingke [1]Zhao;Yi [1]Zhu;Lin [1]Wang

机构地区：[1]Corporate R&D Center,XJ group,State Grid Corporation of China,Beijing,China

出　　处：《Protection and Control of Modern Power Systems》索引2016年第1卷第1期,共7页

摘　　要：Half-wavelength AC Transmission(HWACT)can improve capability of AC transmission significantly.According to the basic principle of HWACT,the electromagnetic transient model of HWACT is built to analyze the fault transient process of transmission line.Based on fault characteristics of HWACT,the adaptability of traditional protections for transmission lines is analyzed briefly,such as current differential protection,distance protection and over current protection.In order to solve the problems of conventional protection caused by HWACT,a novel integrated protection based on multi-frequency domain information is proposed in this paper,which uses both the power frequency information and transient information.The integrated protection based on multi-frequency domain information takes advantages of power frequency and transient protections,which can not only improve the performance of traditional protection of AC transmission line but also realize fast fault judgment by transient travelling wave protection. 关键词：Half-wavelength AC transmission Relaying protection Electromagnetic transient simulation Travelling wave

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Integrated protection based on multifrequency domain information for UHV half-wavelength AC transmission line

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引证文献(4)

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