Evaluation on Intelligent Renovation of Substations Based on Improved TOPSIS

To promote the construction of smart grid,the intelligent evaluation on primary equipments in substations is a problem to be urgently solved.For this reason,firstly,according to investigation and research data from actual projects an intelligent evaluation model for substation primary equipments is built;then combining with analytical hierarchy process(AHP) and entropy weight method a concept of correlation coefficient is proposed,and based on the correlation between AHP and entropy weight a method to calculate integrated weight is put forward and using this calculation method the weights of evaluation indices are computed,meanwhile,the traditional evaluation method based on technique for order preference by similarity to ideal solution(TOPSIS) is improved to solve the inverse ordering problem that may occurs when the number of evaluation object is changed;finally,to verify the reasonability and accuracy of the proposed evaluation method a practical calculation example is given.