| 引用本文: | 马静,史宇欣,马伟,等.基于电流保护融信因子的站域后备保护[J].电力系统保护与控制,2015,43(4):1-9.[点击复制] |
| MA Jing,SHI Yuxin,MA Wei,et al.Substation backup protection based on current fusion reliable factor[J].Power System Protection and Control,2015,43(4):1-9[点击复制] |
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| 基于电流保护融信因子的站域后备保护 |
| 马静,史宇欣,马伟,邱扬,王增平 |
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| (新能源电力系统国家重点实验室(华北电力大学)，北京102206;山西省电力公司电力科学研究院，山西 太原 030001) |
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| 摘要: |
| 针对站域保护可方便获取所有就地保护动作信息的特点，提出了基于电流保护融信因子的站域后备保护方案。首先在线更新站内各元件的自适应电流保护整定值，并收集保护的动作信息，再根据保护对各元件的有效保护范围计算保护对元件故障识别的支撑度。然后将其作为保护动作的权重，构造站域电流保护融信度函数以及融信度期望函数。最后根据二者比值即融信因子识别故障元件。实际变电站数据验证结果表明该方案能正确、快速地识别故障元件，且无需信息同步，能够应对信息缺失及错误的情况，具有良好的适应性以及一定的容错能力。 |
| 关键词: 站域保护 支撑度 融信度函数 融信度期望函数 融信因子 |
| DOI：10.7667/j.issn.1674-3415.2015.04.001 |
| 投稿时间：2014-05-11修订日期：2014-08-11 |
| 基金项目:国家重点基础研究发展计划项目(973项目)(2012CB215200)；国家自然科学基金项目(51277193)；中央高校基本科研业务费专项资金项目(2014ZZD02)；教育部留学回国人员科研启动基金资助项目(教外司留[2011] 1139号)；河北自然科学基金项目(E2012502034)；北京市科技新星支持计划(Z141101001814012)；北京市优秀人才支持计划(2013B009005000001)；霍英东教育基金(141057) |
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| Substation backup protection based on current fusion reliable factor |
| MA Jing,SHI Yuxin,MA Wei,QIU Yang,WANG Zengping |
| (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University),
Beijing 102206, China;Electric Power Research Institute, Shanxi Electric Power Corporation, Taiyuan 030001, China) |
| Abstract: |
| Station backup protection based on the current fusion reliable factor is proposed for easy access to all the information of local protection action. First, this paper updates setting values based on the principle of adaptive current protection, collects the action information of current protection and calculates support degree that protection against each component based on effective protection range. Then, it regards the support degree as the right of protection and builds fusion reliable function and fusion reliable expected function of station protection. Finally, faulty component is identified according to their specific value, i.e. fusion reliable factor. The results show that the faulty component can be identified correctly and quickly, and information missing and error situation can be coped with. This scheme of substation protection has good adaptability and fault tolerance. |
| Key words: substation protection support degree fusion reliable function fusion reliable expected function fusion reliable factor |
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