Comprehensive Decision-Making of Transmission Network Planning Based on Entropy Weight and Grey Relational Analysis

In allusion to incomplete information and strong subjectivity of index weights in present comprehensive decision-making of power transmission network planning,based on the combination of entropy weight with grey correlation analysis a comprehensive decision-making method for transmission network planning is proposed.Firstly,the entropy weight is used to determine objective weights of evaluation indices to remedy the insufficiency of average index weight and experts assigned index weight in original grey correlation;then the optimal scheme is obtained by improved grey correlation analysis.The combination of entropy weight with grey correlation analysis can fully utilize overall information of each index and give full play to the superiority of grey correlation that it is suitable for small sample events with a certain gray level.The effectiveness of the proposed method is verified by simulation results of IEEE Garver-6 system.