Investment Risk-Based Decision of Distributed Generation Based on Grey Cumulative Prospect Theory
As for the investment decision-making problems of distributed generation,two indicators including the economic benefits and environmental benefits are selected to establish the decision index.Considering the subjective risk attitude of decision makers towards the impact of distributed generation investment,grey relevancy optimization model is formulated on the basis of cumulative prospect theory after setting the project parameters.This method uses the linear transformation operator to standardize the original decision-making matrix,and achieves the positive and negative ideal schemes which are taken as the reference points of priority by the way of TOPSIS.Based on the cumulative prospect theory and grey relational analysis,the positive and negative prospect value matrixes and the nonlinear planning model for the maximum of comprehensive prospect value are established.Then the optimum weight vector is solved by Matlab programming and the order of the program is determined.Finally,an example application proves that the method is a feasible and effective method of decision-making,and the results provide a new thought to the investment benefits of distributed generation.