| 基于暂态特征的配电线路自适应重合闸仿真研究 |
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| 引用本文： | 张志华,刘 健,吴水兰,庞建伟,席亚克,张建雨.基于暂态特征的配电线路自适应重合闸仿真研究[J].电测与仪表,2021,58(7):81-88. |
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| 作者姓名： | 张志华 刘 健 吴水兰 庞建伟 席亚克 张建雨 |
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| 作者单位： | 国网陕西省电力公司电力科学研究院,西安710100;许继集团有限公司,河南许昌461000 |
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| 基金项目： | 城市智能配电网保护与自愈控制关键技术 |
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| 摘 要： | 当重合于永久性故障时,断路器要连续切断两次短路电流,这会降低断路器的寿命和开断能力.文中提出在配电线路重合前投入预充好电的电容器的自适应重合闸方案,通过判别电容放电电压电流的暂态特征,来区别故障是永久性故障还是瞬时性故障,永久性故障时闭锁重合闸,瞬时性故障开放重合闸.仿真分析了各种工况时方案的可行性.
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| 关 键 词： | 配电线路 自适应重合闸 暂态特征 |
| 收稿时间： | 2019/8/13 0:00:00 |
| 修稿时间： | 2019/8/29 0:00:00 |
The research on adaptive auto-reclosure technique of distribution line based on the transient characteristic by simulation |
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| Zhang Zhihu,Liu Jian,Wu Shuilan,Pang Jianwei,XI Yake and Zhang Jianyu.The research on adaptive auto-reclosure technique of distribution line based on the transient characteristic by simulation[J].Electrical Measurement & Instrumentation,2021,58(7):81-88. |
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| Authors: | Zhang Zhihu Liu Jian Wu Shuilan Pang Jianwei XI Yake and Zhang Jianyu |
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| Affiliation: | Shanxi Electric Power Research Institute,Xi An,Shanxi Electric Power Research Institute,Xi An,Xu ji Group corporation,Xu Ji Group corporation,Xu Ji Group corporation,Xu Ji Group corporation |
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| Abstract: | when permanent fault occurs, reclosure will fail, the circuit breaker must break short-current continuous twice, this condition will reduce the lifetime and breaking capacity of the circuit breaker. A scheme of Adaptive Auto-reclosure Technique of Distribution Line is put forward in order to distinguish the permanent fault or the transient fault, by distinguishing the transient characteristic of voltage and current of capacitor. when permanent fault occurs, it blocks reclosure; when transient fault occurs, it opens reclosure. The feasibility of the scheme under different conditions is analysed by the simulation. |
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| Keywords: | distribution line adaptive Auto-reclosure transient characteristic |
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