基于q-阶正交模糊数和云模型的配电自动化系统运行状态评估  

Operation Status Evaluation of Distribution Automation System Based on Q-rung Orthopair Fuzzy Number and Cloud Model

作　　者：倪涵艺 曾飞 孙国强[1] 韩海腾 卫志农[1] NI Hanyi;ZENG Fei;SUN Guoqiang;HAN Haiteng;WEI Zhinong(College of Energy and Electrical Engineering,Hohai University,Nanjing 211100,Jiangsu Province,China;State Grid Jiangsu Electric Power Co.,Ltd.,Research Institute,Nanjing 210019,Jiangsu Province,China)

机构地区：[1]河海大学能源与电气学院,江苏省南京市211100 [2]国网江苏省电力有限公司电力科学研究院,江苏省南京市210019

出　　处：《电网技术》2024年第11期4690-4698,共9页Power System Technology

基　　金：国家自然科学基金项目(U1966205):交直流混合主动配电网数据-模型融合感知与安全域约束调度。

摘　　要：配电自动化系统运行状态影响到电网的安全稳定运行。为实现对配电自动化系统的精细运维,建立基于q-阶正交模糊数和云模型的配电自动化系统运行状态评估模型。首先,根据配电自动化系统特征,构建层次化评估指标体系。其次,提出基于改进q-阶正交模糊Einstein有序加权平均算子的层次分析法计算指标主观权重,使用熵权法计算指标客观权重,结合变权理论求取指标变权综合权重。然后,考虑评估指标运行状态的渐变性,建立评估指标四等级云模型获取指标隶属度,使用模糊算子综合指标变权综合权重和指标隶属度,依据模糊综合评价原则确定配电自动化系统运行状态。最后,用某市电网实际运行数据验证所提方法,结合指标隶属度和系统运行状态评估结果分析系统运行中可能存在的问题,提出相应的解决措施。The operational status of the distribution automation system affects safety and stability of power grid operation.In order to realize the fine operation and maintenance of the distribution automation system,an evaluation model based on q-rung orthopair fuzzy number and cloud model is established.Firstly,a hierarchical evaluation index system is constructed based on the characteristics of the distribution automation system.Then,based on the improved q-rung orthopair fuzzy Einstein ordered weighted average operator,a hierarchical analysis method is proposed to calculate the subjective weights of indices.The entropy weight method is used to calculate objective weights.To obtain the variable weight comprehensive weights,the variable-weight theory is combined with subjective weights and objective weights.Then,considering the gradual change of the operation status,a four-level cloud model of the evaluation indices is established to obtain the index affiliation.According to the fuzzy comprehensive evaluation principle,by using fuzzy operators,the comprehensive weight and index affiliation are integrated to determine the operation status of the distribution automation system.Finally,the proposed method is verified with the actual distribution automation system.The possible problems in the operation are analyzed in the combination with the index affiliation degree and system operation status evaluation results.According to the possible problems,corresponding solution measures are proposed.

关 键 词：配电自动化系统状态评估 q-阶正交模糊数 变权理论 云模型 模糊综合评价 

分 类 号：TM721[电气工程—电力系统及自动化]