Aming at solving the problem of the lack of evaluation system for distribution grid-heat pump-energy storage(DN-HP-ESS) coupling system

dynamic comprehensive evaluation of the distribution grid and heat pump-energy storage coupling system is carried out. Firstly

the operation principle and operation mode of the DN-HP-ESS coupled system are analyzed. Then

the evaluation index system of the DN-HP-ESS coupled system is constructed from three dimensions of technicality

safety and economy

the combined weighting model of hierarchical analysis method-inverse entropy power method-discrepancy maximization method is constructed

and the fuzzy comprehensive evaluation model modified by the center of gravity method is further proposed. Moreover

considering the dynamic changes of the DN-HP-ESS coupled system

a dynamic comprehensive evaluation model of the DN-HP-ESS coupled system is established

and the validity test method of the model is proposed. Finally

a demonstration project in Shanghai is used as an example for calculation analysis to verify the validity of the model. The results show that

the coupled DN-HP-ESS system can reduce the cost of power purchase to the distribution grid and the operating cost of heat pumps

improve the consumption of new energy

and outperform other systems in all dimensions.