基于多源数据融合的有源配电网运行状态感知研究  

Research on active distribution network operating status perception based on multi⁃source data fusion

作　　者：高丽媛 廖勤武 林瑞发 钟育庆 GAO Liyuan;LIAO Qinwu;LIN Ruifa;ZHONG Yuqing(State Grid Information&Telecommunication Group Co.,Ltd.,Beijing 102211,China;State Grid Info-Telecom Great Power Science and Technology Co.,Ltd.,Fuzhou 350000,China)

机构地区：[1]国网信息通信产业集团有限公司,北京102211 [2]国网信通亿力科技有限责任公司,福建福州350000

出　　处：《现代电子技术》2023年第10期95-99,共5页Modern Electronics Technique

摘　　要：针对有源配电网运行状态异常,导致状态感知范围与实际范围存在差异的问题,文中提出一种基于多源数据融合的有源配电网运行状态感知方法。该方法结合蚁群算法与融合规则,根据搜索路径决定数据融合顺序,构建运行态势多源数据融合模型,确定线损率和轻载率运行态势指标,避免因运行状态突变而影响感知结果。采用多源数据融合信息熵训练样本计算有源配电网运行过程中每个样本之间的欧氏距离,确定有源配电网异常运行状态范围;再融合多源电压数据,使用多源数据融合方法区分可信和不可信电压数据,剔除不可信数据,分解状态识别电压序列,获取零序电压、越限电压、过载电压、未来态电压四种运行状态感知结果;最后,通过层次分析法修正感知数据,使状态感知结果与实际结果满足相容一致性要求。实验结果表明,所提方法感知的异常数据在40~50个范围内波动,与实际数值波动范围一致,能够得到不同运行状态下的精准感知结果。In allusion to the problem of abnormal operation status of active distribution networks,which leads to the difference between the actual range and the state perception range,a method of active distribution network operation status perception based on multi⁃source data fusion is proposed.In combination with the ant colony algorithm and fusion rules,this method can be used to determine the data fusion order according to the search path,construct a multi⁃source data fusion model for the operating status,and define operating status indicators of line loss rate and light load rate,so as to avoid affecting the perception results due to sudden changes of the operating status.The training samples of multi⁃source data fusion information entropy are used to calculate the Euclidean distance between the samples during the operation of the active distribution network,and the abnormal operating state range of the active distribution network is determined.The multi⁃source voltage data are integrated again,the multi⁃source data fusion method is used to distinguish between trusted and untrusted voltage data,eliminate untrusted data,decompose state identification voltage sequences,and obtain four operating status perception results:zero sequence voltage,over limit voltage,overload voltage,and future state voltage.The analytic hierarchy process(AHP)is used to modify the perception data to make the state perception results and the actual results meet the compatibility and consistency requirements.The experimental results show that the abnormal data sensed by the proposed method fluctuates in range of 40~50,which is consistent with the fluctuation range of the actual value;the method can be used to obtain the accurate perception results under different operating states.

关 键 词：有源配电网 运行状态感知 多源数据融合 运行态势指标 欧氏距离计算 电压序列 实验分析 

分 类 号：TN911.23-34[电子电信—通信与信息系统] TM933[电子电信—信息与通信工程]