Evaluation Model of Safe Operation of Distribution Network Supported by User-Side Energy Storage Based on Entropy Weight-Grey Correlation Method

This paper proposes a user-side energy storage (USES) supporting distribution network safe operation evaluation model based on entropy weight -grey correlation method to improve the efficiency and accuracy of safe operation evaluation of USES system in distribution network. The paper first constructs an operation index library of electrochemical energy storage (ES) power station, covering multiple dimensions such as power, energy efficiency, reliability and operation and maintenance costs, to provide support for the evaluation system. Then, based on the coupling relationship between the USES system and the distribution network system, a safe operation evaluation index system of the USES system on the distribution network side is constructed. Finally, based on the comprehensive evaluation model of grey correlation entropy weight method, a comprehensive evaluation of the safe operation of USES is achieved. The results show that the model can effectively evaluate the safe operation status of the USES system and support the stable and efficient operation of the distribution network.