| 小电流接地系统两点接地故障仿真分析 |
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| 引用本文： | 吴凤翔,顾兆雄.小电流接地系统两点接地故障仿真分析[J].上海电力学院学报,2020,36(6):524-528. |
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| 作者姓名： | 吴凤翔 顾兆雄 |
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| 作者单位： | 国网上海市电力公司闸北发电厂 |
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| 摘 要： | 针对小电流接地系统两点接地故障的复杂性以及理论分析的难度，建立了仿真模型，分析了全部4种类型的两点接地故障，得到了故障时相电压、零序电压和零序电流的特征，提出了一种判断两点接地故障的方法。最后，通过PSCAD/EMTDC软件进行了仿真验证。
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| 关 键 词： | 两点接地 接地故障 小电流接地系统 配电网 |
| 收稿时间： | 2019/12/17 0:00:00 |
Analysis of the Cross-country Grounded Fault in the Low Current Grounded System |
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| WU Fengxiang,GU Zhaoxiong.Analysis of the Cross-country Grounded Fault in the Low Current Grounded System[J].Journal of Shanghai University of Electric Power,2020,36(6):524-528. |
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| Authors: | WU Fengxiang GU Zhaoxiong |
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| Affiliation: | Shanghai Zhabei Power Plant of State Grid, Shanghai 200438, China |
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| Abstract: | Aiming at the complexity and theoretical analysis difficulty of the cross-country grounded fault in the low current grounded system,a simulation model is established.Four types of the cross-country grounded fault are analyzed.Then,the characteristics of phase voltage,zero sequence voltage and zero sequence current are obtained.A method for detecting the cross-country grounded fault is proposed.Finally,the theoretical analysis is verified by PSCAD/EMTDC simulation. |
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| Keywords: | cross-country grounded fault grounded fault the low current grounded system the distribution network |
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