| 应用证据理论实现配电网单相接地故障选线保护 |
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| 引用本文： | 贾清泉,杨以涵,杨奇逊.应用证据理论实现配电网单相接地故障选线保护[J].电力系统自动化,2003,27(21):35-38,44. |
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| 作者姓名： | 贾清泉 杨以涵 杨奇逊 |
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| 作者单位： | 1. 燕山大学电气工程学院,河北省秦皇岛市,066004
2. 华北电力大学电力工程系,北京市,100085 |
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| 基金项目： | 国家自然科学基金资助项目 (50 1770 0 7)，燕山大学博士基金资助项目 |
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| 摘 要： | 提出了一种利用多重故障信息融合选线方法。为实现这一目的，提出了故障测度概念，用来定量评价各线路可能是故障线路的程度。运用D-S证据理论实现了多判据信息融合，将多判据选线问题转化为证据推理问题，使选线结果聚焦到各个判据的共同支持点上，选线性能得到极大提高。现场实测故障算例证实了文中方法的正确性。
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| 关 键 词： | 故障选线 配电网 小电流接地故障 证据理论 故障测度 信息融合 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
APPLICATION OF D-S EVIDENCE THEORY TO SINGLE-PHASE-TO-GROUND FAULT LINE DETECTION |
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| Jia Qingquan ,Yang Yihan ,Yang Qixun.APPLICATION OF D-S EVIDENCE THEORY TO SINGLE-PHASE-TO-GROUND FAULT LINE DETECTION[J].Automation of Electric Power Systems,2003,27(21):35-38,44. |
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| Authors: | Jia Qingquan Yang Yihan Yang Qixun |
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| Affiliation: | Jia Qingquan 1,Yang Yihan 2,Yang Qixun 2 |
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| Abstract: | This paper proposes a line detecting strategy with multi fault information fusion for single phase to ground faults in neutral insulated or Peterson coil grounded system. Concept of the fault measurement is introduced to quantitatively evaluate the probability of each line to be likely to the fault line. Thus the D S evidence theory is employed to process the fusion of multi information, which transforms the fault line detection with multi criteria to a evidence reasoning one and also focalizes detecting results on a common ground of each criterion, and therefore improves the detecting performance greatly. Field practical results show that the fusion strategy proposed is feasible and correct. This work is supported by National Natural Science Foundation of China (No. 50177007) and Doctoral Foundation of Yanshan University. |
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| Keywords: | fault line detection distribution system non solidly earthed fault D S evidence theory fault measures information fusion |
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