| 配电网高压保险丝故障原因的仿真分析 |
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| 引用本文： | 南晓强,李群湛.配电网高压保险丝故障原因的仿真分析[J].电力系统及其自动化学报,2011,23(6):96-100. |
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| 作者姓名： | 南晓强 李群湛 |
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| 作者单位： | 西南交通大学电气学院,成都,610031 |
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| 摘 要： | 针对近年来配电网高压保险丝频繁熔断的现象,该文介绍了电磁式电压互感器高压侧保险丝熔断的根本原因,用Peterson谐振判据证明:PT高压侧保险丝熔断的原因并非是系统发生了铁磁谐振现象.随后建立了系统等值模型,又基于Matlab/Simulink建立了PT、系统仿真模型.经仿真结果进一步证明系统没有出现铁磁谐振,而是在系...
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| 关 键 词： | 电压互感器 高压保险丝 铁磁谐振 4个电压互感器接线方式 饱和电流 |
Simulation of the Fault of High Voltage (HV) Fuse in Power Distribution System |
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| NAN Xiao-qiang,LI Qun-zhan.Simulation of the Fault of High Voltage (HV) Fuse in Power Distribution System[J].Proceedings of the CSU-EPSA,2011,23(6):96-100. |
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| Authors: | NAN Xiao-qiang LI Qun-zhan |
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| Affiliation: | (Electricity Institute,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | The fault of HV fuse becomes frequent in recent years.This paper describes the root cause of HV fuse broken.Peterson resonance criterion proves that HV fuse broken is not due to ferroresonance.System equivalent model is established,and then voltage-transformer and system simulation model are built by Matlab/Simulink.The simulation results further prove that the system does not appear ferroresonance,but when failure disappears there is the low-frequency saturation current in the system.Finally,a effective measure to inhibit the fault is 4PT(potential transformer) wiring. |
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| Keywords: | voltage-transformer high voltage(HV) fuse ferroresonance 4PT(potential transformer) wiring saturation current |
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