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《Insulators and Surge Arresters》 2012-03
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Synthetic Evaluation of High Voltage Insulator Pollution State Based on Grey Target Theory

LIAO Qing-hua1,LV Yan2,TANG Lin-quan2(1.Dept of Electrical Engineering,Henan Mechanical and Electrical Engineering College,Xinxiang 453002,China; 2.School of Electrical Engineering,Guangxi University,Nanning 530004,China)  
According to the existing problem that there is no standard method of evaluation classification method in insulator pollution state synthetic evaluation,a new method that can classify the state of insulator pollution and carried out the synthetic evaluation on the classes of insulator pollution is proposed.Grey target theory is introduced into insulator pollution state synthetic evaluation combining with related factors of insulators' state,the balance of evaluation index is considered comprehensively,the insulator state comprehensive evaluation system is built,the insulator pollution classes is devided by grey target theory.Combining with expert experience and target information adequately,subjective weight and objective weight are obtained by analytic hierarchy process and entropy method,and finally the approaching degree between each sample to be evaluated and standard sample is calculated,comprehensive evaluation model of insulator pollution state is established.The practical calculation examples show that the proposed method turned to be objective and reasonable evaluation result,the superiority and the efficiency of this model has proved.
【CateGory Index】: TM216;TM852
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