基于多源信息融合的配电网小电流接地选线方法
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摘要
为解决配电网小电流接地选线问题,对配电网小电流接地情况下的中性点电压偏移轨迹进行了详细分析,建立了配电网接地选线开关阵记录接地变电站母线的馈线出线开关模型,并依据该模型和优先级规则生成了馈线开关拉路序列表以描述一条母线上各个馈线出线开关的分闸动作顺序。最后,依靠配电网接地选线开关阵和馈线开关拉路序列表给出了一种基于多源信息融合的配电网小电流接地选线方法。实例分析表明该方法对配电网小电流接地选线具有较好的适应性。
In order to solve the problem of the non-solidly earthed distribution feeder selection, the neutral point voltage offset trajectory in the case of small current grounding of distribution network is analyzed in detail and distribution network grounding switch matrix in the distribution network is established. According to this model, the feeder switch open sequence table is established to describe the sequence of opening action of each feeder outlet switch on a busbar. Based on multi-source information fusion, a non-solidly earthed distribution feeder selection method based on multi-source information fusion is proposed. The case study shows that this method has good adaptability to the non-solidly earthed distribution feeder selection.
In order to solve the problem of the non-solidly earthed distribution feeder selection, the neutral point voltage offset trajectory in the case of small current grounding of distribution network is analyzed in detail and distribution network grounding switch matrix in the distribution network is established. According to this model, the feeder switch open sequence table is established to describe the sequence of opening action of each feeder outlet switch on a busbar. Based on multi-source information fusion, a non-solidly earthed distribution feeder selection method based on multi-source information fusion is proposed. The case study shows that this method has good adaptability to the non-solidly earthed distribution feeder selection.
引文
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[5]黄建业,陈敏维,张伟等.基于突变逻辑阵的配网小电流接地故障判定方法[J].智慧电力,2017,45(8):45-50.
[6]樊唯钦,张伟,李勇钢等.基于改进人体舒适度指数的微电网超短期负荷预测[J].广东电力,2017,30(4):137-142.
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[10]薛永端,李娟,徐丙垠.中性点经消弧线圈接地系统小电流接地故障暂态等值电路及暂态分析[J].中国电机工程学报,2015,35(22):5703-5714.
[11]高志鹏,张慧芬,孙旭娜.注入半波直流的小电流接地故障选线定位方法[J].电力系统保护与控制,2013,41(13):139-145.
[12]张慧芬,潘贞存,桑在中.基于注入法的小电流接地系统故障定位新方法[J].电力系统自动化,2004,28(3):64-66.
[13]吴骏,卢刚.小电流接地系统单相接地与谐振状态辨识技术[J].电力系统保护与控制,2010,38(13):144-150.
[2]张伟,吕睿博,阎有朋.基于不平衡电容注入的配电网小电流接地故障定位方法[J].智慧电力,2017,45(10):66-71.
[3]赖平,周想凌,邱丹.小电流接地系统暂态电流频率特性分析及故障选线方法研究[J].电力系统保护与控制,2015,43(4):51-57.
[4]陈奎,韦晓广,陈景波等.基于样本数据处理和ADABOOST的小电流接地故障选线[J].中国电机工程学报,2014,34(34):6228-6237.
[5]黄建业,陈敏维,张伟等.基于突变逻辑阵的配网小电流接地故障判定方法[J].智慧电力,2017,45(8):45-50.
[6]樊唯钦,张伟,李勇钢等.基于改进人体舒适度指数的微电网超短期负荷预测[J].广东电力,2017,30(4):137-142.
[7]吴乐鹏,黄纯,林达斌等.基于暂态小波能量的小电流接地故障选线新方法[J].电力自动化设备,2013,33(5):70-74.
[8]刘谋海,方涛,姜运等.基于暂态主频分量相关性分析的故障选线方法[J].电力系统保护与控制,2016,44(2):74-79.
[9]王倩瑜.配电网中性点接地技术研究[J].电子设计工程,2017,25(7):139-143.
[10]薛永端,李娟,徐丙垠.中性点经消弧线圈接地系统小电流接地故障暂态等值电路及暂态分析[J].中国电机工程学报,2015,35(22):5703-5714.
[11]高志鹏,张慧芬,孙旭娜.注入半波直流的小电流接地故障选线定位方法[J].电力系统保护与控制,2013,41(13):139-145.
[12]张慧芬,潘贞存,桑在中.基于注入法的小电流接地系统故障定位新方法[J].电力系统自动化,2004,28(3):64-66.
[13]吴骏,卢刚.小电流接地系统单相接地与谐振状态辨识技术[J].电力系统保护与控制,2010,38(13):144-150.