| 对220kV线路后备保护整定计算原则的简化 |
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| 引用本文： | 朱晓华,曾耿晖,张葆红.对220kV线路后备保护整定计算原则的简化[J].广东电力,2011,24(8):31-34. |
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| 作者姓名： | 朱晓华 曾耿晖 张葆红 |
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| 作者单位： | 1. 广东电网电力调度控制中心,广东广州,510600
2. 广东电网电力调度控制中心,广东广州510600;华南理工大学,广东广州510640 |
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| 摘 要： | 针对电网规模不断扩大导致220 kV线路保护失配增加的问题,提出应简化220 kV线路后备保护整定计算原则,分析简化220 kV线路后备保护的可行性、必要性以及对电网安全运行的风险,对保留零序保护Ⅲ、Ⅳ段(称作方案1)和仅保留零序保护Ⅳ段(称作方案2)这两种简化方案进行比较,结合广东电网实际情况和华中电网的简化措施,推...
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| 关 键 词： | 电力系统 220 kV线路 后备保护 整定计算 |
Simplification of Setting Calculation Principle for Backup Protection of 220 kV Lines |
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| ZHU Xiao-hua,ZENG Geng-hui,ZHANG Bao-hong.Simplification of Setting Calculation Principle for Backup Protection of 220 kV Lines[J].Guangdong Electric Power,2011,24(8):31-34. |
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| Authors: | ZHU Xiao-hua ZENG Geng-hui ZHANG Bao-hong |
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| Affiliation: | ZHU Xiao-hua1,ZENG Geng-hui1,2,ZHANG Bao-hong1(Electric Power Dispatch and Control Center of Guangdong Power Grid Corporation,Guangzhou,Guangdong 510600,China,2.South China University of Technology,Guangdong 510640,China) |
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| Abstract: | Aiming at increased protection mismatch of 220 kV lines due to continuous expanded scale of power grid,the paper proposes to simplify setting calculation principle for backup protection of 220 kV lines and it analyzes feasibility,necessity of backup protection of 220 kV lines and risks it brings to grid operation.The paper compares reserved three-step and four-step zero-sequence(named scheme 1) with four-step zero-sequence(called scheme 2) and recommends a reasonable simplification scheme in combination wit... |
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| Keywords: | power system 220 kV lines backup protection setting calculation |
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