Evaluation of Multi-Energy Microgrid Based on Prospect Theory and VIKOR Method

In recent years, with the shortage of energy and the growing problem of environment, multi-energy microgrid has received more attention as a new power supply mode. Therefore, the scientific and comprehensive evaluation of the multi-energy microgrid can provide guidance for microgrid investment and has high practical significance. Under the above background, this paper proposes a microgrid evaluation method based on prospect theory and VIKOR method. Firstly, a comprehensive evaluation index system of microgrid considering economics, energy utilization efficiency and environmental factors is constructed. Considering the subjective preference of decision-makers, the prospect value function is established according to prospect theory. The improved analytic hierarchy process (AHP) method and the criterion importance through intercriteria correlation (CRITIC) method are combined to determine the comprehensive weight. In addition, the VIKOR method is used to integrate various factors for comprehensive evaluation. Finally, an evaluation example is provided to demonstrate the accuracy and practicality of our method.

I. Introduction

With the economic development and increasing energy consumption, a series of energy shortages and environmental problems have been caused. As a new power supply mode, multi-energy microgrid can organically combine different distributed energy sources, which has higher environmental benefits and energy efficiency, but also bears higher investment costs and maintenance costs [1] - [2]. Therefore, it is necessary to establish a multi-energy microgrid evaluation model so as to provide guidance for the construction and development of microgrid.