| 引用本文: | 裘愉涛,马伟,丁冬,王昀昀,陈琦.提升距离保护抗过渡电阻能力的研究综述[J].电力系统保护与控制,2019,47(1):166-176.[点击复制] |
| QIU Yutao,MA Wei,DING Dong,WANG Yunyun,CHEN Qi.Overview of research on distance protection against transition resistance[J].Power System Protection and Control,2019,47(1):166-176[点击复制] |
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| 摘要: |
| 距离保护作为输电线路保护的重要组成部分，在高压及超高压电网中获得了广泛应用。然而，故障时过渡电阻的存在严重威胁着距离保护动作正确性，易导致保护误动或拒动行为。结合现有研究成果，首先，着重阐述了距离保护分类、配置、整定原则，以及过渡电阻对其动作性能的影响。然后，全面总结了具有抗过渡电阻能力的阻抗继电器、距离继电器和测距式保护研究成果，分析了应用到实际电网中可能面临的问题。最后，结合电网现状和科学技术发展成果，展望了距离保护的发展方向，以期为距离保护抗过渡电阻能力的进一步研究提供参考。 |
| 关键词: 距离保护 阻抗继电器 距离继电器 过渡电阻 不正确动作 |
| DOI：10.7667/PSPC180362 |
| 投稿时间：2018-04-01修订日期：2018-06-11 |
| 基金项目:国家电网公司总部科技项目资助(521104170012, 521101180004) |
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| Overview of research on distance protection against transition resistance |
| QIU Yutao,MA Wei,DING Dong,WANG Yunyun,CHEN Qi |
| (State Grid Zhejiang Electric Power Company, Hangzhou 310009, China;Hangzhou Power Supply Company, State Grid Zhejiang Electric Power Company, Hangzhou 310009, China;North China Electric Power University, Beijing 102206, China;Nanjing SAC Power Gird Automation Co.Ltd., Nanjing 211153, China) |
| Abstract: |
| As an important part of transmission line protection device, distance protection has been widely applied in high voltage and ultra-high voltage power grid. However, the existence of transition resistance seriously threatens the correctness of distance protection action, which may cause mal-operation or miss operation easily. In the light of the existing research results, firstly, this paper emphasizes the classification, configuration, setting principles and the influence of transition resistance on the performance of distance protection. Secondly, it summarizes the current research achievements of impedance relay, distance relay and ranging protection with resistance to transition resistance and analyzes the problems that may be faced in practical application. Thirdly, it discusses the development trend of distance protection based on the current situation of power grid and electrical technology, which hope to provide a reference for further research on the resistance to transition resistance of distance protection. This work is supported by Science and Technology Project of State Grid Corporation of China (No. 521104170012 and No. 521101180004). |
| Key words: distance protection impedance relay distance relay transition resistance incorrect action |
