高电压技术2017，Vol.43Issue(8)：2709-2717,9.DOI:10.13336/j.1003-6520.hve.20170731036
基于Tikhonov正则化原理的接地网腐蚀诊断方法
Corrosion Diagnosis Method for Grounding Grid Based on Tikhonov Regularized Principle
摘要
Abstract
In order to settle the underdetermined and ill-conditioned equations in diagnosis system,the total least squares method based on Tikhonov regularization is conducted and the corresponding codes are compiled.Moreover,a 110 kV transformer substation in Chongqing is tested and three sets of faults are set up to simulate the corrosion of the ground network to reconstruct the field test conditions.The results show that the fault either undetermined or determined branch fault can be easily diagnosed with a relative error of 10％.In the case of concurrent fault of six branches,it can also be diagnosed easily after proper adjustments.Compared with the traditional genetic algorithm,this method avoids crossover and aberrance effectively and diagnostic efficiency is improved apparently.关键词
接地网/腐蚀诊断/欠定特性/病态特性/Tikhonov正则化/总体最小二乘法Key words
grounding grid/corrosion diagnosis/underdetermined characteristic/ill-conditioned characteristic/Tikhonov regularization/total least squares引用本文复制引用
刘渝根,许晓艳,杨蕊菁,李力行,谭思文..基于Tikhonov正则化原理的接地网腐蚀诊断方法[J].高电压技术,2017,43(8):2709-2717,9.基金项目
国家创新研究群体基金(51021005).Project supported by Fund for Innovative Research Groups of China (51021005). （51021005）
