| 基于低压储能预操作协同配电终端的实操可靠性提升策略 |
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| 引用本文： | 高运动,王剑波,谭超,李飞,黄战.基于低压储能预操作协同配电终端的实操可靠性提升策略[J].陕西电力,2021,0(8):77-83. |
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| 作者姓名： | 高运动 王剑波 谭超 李飞 黄战 |
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| 作者单位： | （1. 安徽宏源电力设计咨询有限责任公司，安徽 合肥 230071； 2. 国网宜昌供电公司，湖北 宜昌 443000； 3. 三峡大学，湖北 宜昌 443002） |
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| 摘 要： | 线路检修后常因接地刀闸未分闸导致合闸操作失败，并可能带来人身安全事故或系统受到严重冲击的问题。基于此提出了一种提升配电终端实操可靠性的低压储能预操协同系统。该系统基于低压大功率储能装置和开关组，并接于配电进出线路接地刀闸和高压电流互感器之间，在高压断路器分闸状态下，实现预合断路器前的实操检测功能，短时投切储能预操组，在此时间内终端完成测量，并构建低压回路电流和高压回路电流比较判据，实现接地刀闸接地和故障未消缺检测功能。仿真结果验证了该系统的有效性。
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| 关 键 词： | 配电终端 实操可靠性 低压储能 故障消缺 地刀检测 |
Practical Operation Reliability Enhancement Strategy Based on Low Voltage Energy Storage Pre-operation with Feeder Terminal Unit |
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| GAO Yundong,WANG Jianbo,TAN Chao,LI Fei,HUANG Zhan.Practical Operation Reliability Enhancement Strategy Based on Low Voltage Energy Storage Pre-operation with Feeder Terminal Unit[J].Shanxi Electric Power,2021,0(8):77-83. |
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| Authors: | GAO Yundong WANG Jianbo TAN Chao LI Fei HUANG Zhan |
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| Affiliation: | （1. Anhui Hongyuan Electric Power Design Consulting Co. Ltd.，Hefei 230071，China； 2. State Grid Hubei Yichang Power Supply Company， Yichang 443002，China；3.China Three Gorges University，Yichang 443002，China） |
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| Abstract: | The failure of closing operation is often resulted from the failure of grounding switch after line maintenance， which may cause personal safety accidents or serious impact on the system. Therefore，low voltage energy storage pre-operation collaborative system is proposed to improve the reliability of distribution terminal operation. The system based on low-voltage & high-power energy storage device and switch group is connected between the grounding switch of the distribution line and the high-voltage current transformer. Under the opening state of high-voltage circuit breaker，the real operation detection function before the pre-closure circuit breaker is realized. The energy storage pre-operation group is switched on and off in a short time，and the terminal completes the measurement in this time. The comparison criterion of low-voltage and high-voltage circuit current is made to realize the grounding and fault detection of grounding switch. The simulation results verify the effectiveness of the system. |
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| Keywords: | feeder terminal unit operational reliability low voltage energy storage fault elimination earthing switch detection |
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