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| 一种中低压配电网单相接地故障选线新原理 | |
| 引用本文： | 张慧芬,潘贞存,田质广,桑在中.一种中低压配电网单相接地故障选线新原理[J].电网技术,2005,29(3):76-80. |
| 作者姓名： | 张慧芬 潘贞存 田质广 桑在中 |
| 作者单位： | 1. 济南大学,控制科学与工程学院,山东省,济南市,250022;山东大学,电气工程学院,山东省,济南市,250061 2. 山东大学,电气工程学院,山东省,济南市,250061 3. 大连海事大学,自动化所,辽宁省,大连市,116026 |
| 摘 要： | 为了改正当前小电流接地系统单相接地故障选线装置准确率不高的缺点,作者提出了与零序电压和零序电流极性无关的新的零序电流有功分量比幅选线方法.Matlab仿真表明该方法能准确识别出故障线路. |
| 关 键 词： | NULL |
| 文章编号： | 1000-3673(2005)03-0076-05 |
| 修稿时间： | 2004年1月11日 |
A NEW PRINCIPLE TO DETECT SINGLE PHASE GROUNDING FEEDER IN MIDDLE AND LOW VOLTAGE DISTRIBUTION NETWORKS |
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| ZHANG Hui-fen,PAN Zhen-cun,TIAN Zhi-guang,SANG Zai-zhong.A NEW PRINCIPLE TO DETECT SINGLE PHASE GROUNDING FEEDER IN MIDDLE AND LOW VOLTAGE DISTRIBUTION NETWORKS[J].Power System Technology,2005,29(3):76-80. | |
| Authors: | ZHANG Hui-fen PAN Zhen-cun TIAN Zhi-guang SANG Zai-zhong |
| Affiliation: | ZHANG Hui-fen1,2,PAN Zhen-cun2,TIAN Zhi-guang3,SANG Zai-zhong2 |
| Abstract: | According to the present situation of low detection accuracy of single phase grounding feeder in non-effective grounding system, from the viewpoint of on-site application it is pointed out that the faulty line detection devices depend on the polarities of PT and CT, so that it leads to that the faulty line cannot be accurately detected. The authors present a new faulty line detection principle based on the amplitude comparison of zero sequence active current which does not depend on the polarities of zero sequence voltage and current. The results of simulation by MATLAB prove that using the presented principle the faulty feeder can be accurately detected. |
| Keywords: | Distribution network Single phase to ground fault Active component Faulty feeder detection Power system |
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