| 引用本文: | 乔立华,陶然,宋国兵,万青,张青蕾.直流线路边界特性保护综述[J].电力系统保护与控制,2019,47(19):179-186.[点击复制] |
| QIAO Lihua,TAO Ran,SONG Guobing,WAN Qing,ZHANG Qinglei.A summary of the boundary characteristics used in DC system relay protection[J].Power System Protection and Control,2019,47(19):179-186[点击复制] |
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| 摘要: |
| 换流器的高可控性与脆弱性对继电保护的动作速度提出严格要求。因此，仅利用单端量的全线速动，即基于边界特性的保护近年来成为研究热点。首先综述了利用边界特性的直流线路继电保护研究进展，总结现有边界的特征。在此基础上，定义了能够主动响应扰动产生特征信号的有源边界与仅能够被动响应扰动产生特征信号的无源边界，依据边界性质与边界位置对边界进行了分类。最后，分析了每一类边界特性的应用范围与应用价值。 |
| 关键词: 高压直流 柔性直流 边界特性 继电保护 |
| DOI：10.19783/j.cnki.pspc.190371 |
| 投稿时间：2019-04-02 |
| 基金项目:国家自然科学基金重点项目资助(U1766209) |
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| A summary of the boundary characteristics used in DC system relay protection |
| QIAO Lihua,TAO Ran,SONG Guobing,WAN Qing,ZHANG Qinglei |
| (Zhoukou Power Supply Company, State Grid Henan Electric Power Company, Zhoukou 466000, China;School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China;Electric Power Research Institute of State Grid Shaanxi Electric Power Company, Xi’an 710100, China) |
| Abstract: |
| The high controllability and vulnerability of converters impose strict requirements on the speed of relay protection. Therefore, the whole-line quick-action protection using only single-ended information, that is boundary characteristics based protection, has become a research hotspot in recent years. Firstly, the research progress of DC line relay protection using boundary characteristics is summarized, and the existing boundary characteristics are summarized. On this basis, the active boundary which can generate characteristic signal by active response disturbance and the passive boundary which can only generate characteristic signal by passive response disturbance are defined, and the boundary is classified according to the nature and location of the boundary. Finally, the application scope and application value of each kind of boundary characteristics are analyzed. This work is supported by National Natural Science Foundation of China (No. U1766209). |
| Key words: high voltage direct current flexible DC boundary characteristics relay protection |
