| 引用本文: | 胡 傲,黄景光,翁汉琍,宫娅宁,苏 舒,林湘宁.基于双向配置方向过流继电器的反时限后备保护优化整定策略[J].电力自动化设备,2016,36(10): |
| HU Ao,HUANG Jingguang,WENG Hanli,GONG Yaning,SU Shu,LIN Xiangning.Setting optimization of inverse-time backup protection based on bidirectional overcurrent relays[J].Electric Power Automation Equipment,2016,36(10): |
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| 摘要: |
| 提出一种双向配置方向过流继电器，该继电器配有2套反时限特性保护，根据故障方向设定每套保护的参数。双向配置方向过流继电器采用连接在同一条母线不同线路上的保护对，有效提高了保护系统的速动性和灵敏性。双向配置方向过流继电器的整定计算被转化为一种优化问题，将继电器间的配合问题抽象为约束条件，将主保护和备用保护的动作时间之和抽象为目标函数。IEEE 30节点的仿真结果表明，与传统保护方案相比，双向配置方向过流继电器能明显提升保护系统的速动性。 |
| 关键词: 继电保护 反时限特性 方向过流继电器 优化 保护配合 整定计算 电力系统 |
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| 基金项目:国家自然科学基金资助项目（51477090）；国家电网公司科技项目（JB71-15-001） |
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| Setting optimization of inverse-time backup protection based on bidirectional overcurrent relays |
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HU Ao1, HUANG Jingguang1, WENG Hanli1, GONG Yaning1, SU Shu2, LIN Xiangning2
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1.College of Electrical Engineering & New Energy，China Three Gorges University，Yichang 443002，China;2.State Key Laboratory of Advanced Electromagnetic Engineering and Technology，Huazhong University of Science and Technology，Wuhan 430074，China
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| Abstract: |
| A bidirectional overcurrent relay configured inversely with two inverse-time protections is proposed，whose parameters are set respectively according to the fault directions. It applies a pair of protections for different lines of same bus to effectively improve the quickness and sensitivity of protection system. The calculation of its settings is converted into a setting optimization problem，which abstracts the coordination between relays as the constraints and the total operation time of primary and backup protections as the objective function. The simulative results of IEEE 30-bus system illustrate that，the protection scheme based on the bidirectional overcurrent relays has obviously higher system quickness than conventional protection scheme. |
| Key words: relay protection inverse time-lag characteristic directional overcurrent relay optimization protection coordination setting calculation electric power systems |
