Research on comprehensive performance evaluation model of multi-energy micro-grid based on prospect theory improved VIKOR technique

With the increasing energy shortage and ecological environment problems, the multi-energy micro-grid (MEMG) considering distributed new energy has attracted more attention. Scientific and comprehensive evaluation of the comprehensive performance of MEMG can provide guidance for the construction of micro-grid, which has high practical significance. In this paper, a comprehensive performance evaluation method of MEMG based on prospect theory improved VIKOR method is proposed. First of all, according to the development characteristics of MEMG, a comprehensive evaluation index system of MEMG performance considering economy, energy efficiency and environmental benefit is constructed. Secondly, considering the subjective risk tendency of the decision-maker, the prospect value function is established, and the best-worst-method (BWM) is used for index weighting. Then, the prospect value is introduced into the VIKOR framework to form the comprehensive performance evaluation model of MEMG. Finally, the simulation results show that the proposed method is reasonable and effective, and the annual operating cost of the PV-MEMG system is low, having relatively high energy saving and environmental protection benefits.