交联聚乙烯绝缘电力电缆剩余寿命评估方法  

Evaluation Method for Remaining Life of XLPE Insulated Power Cable

作　　者：马捍超 高宝琪 李向阳 吴苏州 张小军 MA Hanchao;GAO Baoqi;LI Xiangyang;WU Suzhou;ZHANG Xiaojun(State Grid Xinjiang Electric Power Research Institute,Urumqi 830000,China;State Grid Xinjiang Electric Power Company,Equipment Management Department,Urumqi 830001,China;Beijing Sgitg Accenture Information Technology Center Co.,LTD,Beijing 100031,China)

机构地区：[1]国网新疆电力有限公司电力科学研究院,乌鲁木齐830000 [2]国网新疆电力有限公司设备管理部,乌鲁木齐830001 [3]北京国网信通埃森哲信息技术有限公司,北京100031

出　　处：《哈尔滨理工大学学报》2023年第3期74-79,共6页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金(52007032)。

摘　　要：针对电缆剩余寿命评估过程中,因评估因素权重值计算存在误差导致评估结果的精度较低问题,研究微粒群算法下交联聚乙烯绝缘电力电缆剩余寿命评估方法。首先,采用故障树分析法,从电老化以及热老化两个角度出发,确定评估因素,构建剩余寿命评估模型,确定电缆的老化系数。其次,通过微粒群算法计算权重值与适应度函数,对输入的数据进行归一化处理。最后,结合不同评估因素权重确定电缆剩余寿命。通过实例分析证明研究方法能够在迭代至10次时,微粒群算法即可得到最优解适应值1.982,并在其后的迭代过程中,最优解适应值稳定在1.982。结果表明该方法能够较快地获取最优解适应值,提升分析对象剩余寿命评估的效率的同时,在迭代次数条件下确定评估因素权重值,提升电缆剩余寿命评估结果精度。Aiming at the problem of low accuracy of the evaluation results due to errors in the calculation of the weight value of the evaluation factors in the evaluation of the remaining life of the cable,the remaining life evaluation method of the cross-linked polyethylene insulated power cable under the particle swarm algorithm is studied.First,the fault tree analysis method is used to determine the evaluation factors from the two perspectives of electrical aging and thermal aging,construct a remaining life evaluation model,and determine the aging coefficient of the cable.Second,the weight value and the adaptation function are calculated by the particle group algorithm,and the input data is normalized.Finally,it is determined to determine the remaining life of the cable in conjunction with different assessment factors.Through example analysis,the research method can obtain the optimal solution adaptation value 1.982 when it is an iteration to 10 times,and in its subsequent process,the optimal solution adaptation value is stable in 1.982.The results show that this method can obtain the optimal solution fitness value quickly,improve the efficiency of the surplus life evaluation of the analysis object,determine the weight value of the assessment factor under the measurement of the iterative period,and improve the residual life of the cable.

关 键 词：微粒群算法 交联聚乙烯 电力电缆 剩余寿命评估 评估因素 权重值计算 算法性能 

分 类 号：TM854[电气工程—高电压与绝缘技术]