基于电压治理的中压馈线分类及其治理措施选择
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欧阳森(1974),男,博士,副研究员,主要从事智能配电网规划与运行、电能质量分析与控制研究,Email:ouyangs@scut.edu.cn

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TM715

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广东省自然科学基金(2016A030313476)


Research on classification and voltage governance measures selection for medium voltage feeders
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    摘要:

    中压馈线在电压治理上面临电压偏差和波动等问题,且治理措施和设备的选择较多。针对电网企业在规划、运维工作中难以为海量的中压馈线选择针对性治理措施的问题,提出一种基于电压治理的中压馈线分类及其治理措施选择方法。首先,从馈线自身属性参数影响电压的机理出发,建立涵盖线路属性和负荷特性的电压特征指标体系,并采用基于因子分析的模糊C均值(FCM)聚类算法,对馈线进行初步地聚类划分,从而判断馈线是否需要进行线路改造或在线路上加装治理设备。然后,应用数理统计理论设计描述概率分布和时域波动特性的母线电压特性评估方法,利用所得评估等级对初步聚类结果进一步精细划分,从而确定是否修改母线电压调控策略或者在母线上加装设备。最后,通过实例分析验证所提方法的有效性和实用性。

    Abstract:

    Medium voltage feeders face voltage deviation and fluctuation problems, and there are many choices of governance measures and equipment. A classification and voltage governance measures selection method of medium voltage feeders is proposed in view of the current situation that power grid enterprise is difficult to select the pertinent measures for massive medium voltage feeders in the planning and operation of the network. Firstly, considering the influence of feeder's property parameters on voltage, a voltage characteristic index system is designed which covers the line property and load characteristic. Then, the feeders are sorted by the Fuzzy Cmean (FCM) clustering algorithm based on the factor analysis so as to judge whether the feeders need to be transformed or install the governance equipment. Then, the bus voltage characteristic evaluation method is designed to describe the probability distribution and time domain fluctuation characteristics. The primary clustering results are further refined by the bus voltage characteristic grades to determine whether it is necessary to modify bus voltage control strategy or install equipment on the bus. Finally, the effectiveness and practicability of this method are verified by an example.

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引用本文

欧阳森,马少华,黄湘.基于电压治理的中压馈线分类及其治理措施选择[J].电力科学与技术学报,2020,35(5):171-177.
OUYANG Sen, MA Shaohua, HUANG Xiang. Research on classification and voltage governance measures selection for medium voltage feeders[J]. Journal of Electric Power Science and Technology,2020,35(5):171-177.

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  • 在线发布日期: 2021-04-16
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