电瓷避雷器Issue(6)：69-78,10.DOI:10.16188/j.isa.1003-8337.2025.06.009
基于改进交替方向乘子法的大规模接地网腐蚀评估方法
Large-Scale Grounding System Corrosion Assessment Method Based on Improved Alternating Direction Multiplier Method
摘要
Abstract
The detection of grounding grids corrosion status is an important means to ensure the safe and stable operation of substations.In order to solve the problem of pathological diagnostic equations in grounding grid corrosion detection,the author establishes a grounding grid diagnosis model based on elec-trical network principles and parameter identification methods,and proposed a total least squares hybrid iterative algorithm based on improved alternating direction multiplier method(LM-ADMMG).This al-gorithm not only improves the convergence speed and accuracy of the grounding network corrosion detec-tion model,but also reduces the influence of random errors.Taking the simplified structure of the grounding network in a 110 kV substation in Jiaxing as an example,a topology is established for simula-tion and calculation.The results show that compared with traditional optimization methods,this hybrid al-gorithm can accurately identify fault branches under different corrosion conditions,and has the advantages of fast convergence speed,high accuracy,and avoiding getting stuck in local optimal solutions.关键词
接地网/腐蚀检测/LM/高斯罚函数/ADMM/总体最小二乘Key words
grounding grid/corrosion detection/LM/Gaussian penalty function/ADMM/overall least squares引用本文复制引用
王磊,程杨,江伟建,赵红玉..基于改进交替方向乘子法的大规模接地网腐蚀评估方法[J].电瓷避雷器,2025,(6):69-78,10.基金项目
国家自然科学基金资助项目(编号:61873159).Project supported by the National Natural Science Foundation of China(No.61873159). （编号:61873159）
