Two-Layer Energy Sharing Strategy in Distribution Network with Hybrid Energy Storage System

This paper addresses an energy sharing strategy in a two-layer microgrid with the renewable distributed generation and hybrid energy storage system considered to minimize the total energy bill purchased from the utility grid and reduce the peak time consumption from the utility grid. This approach considers the energy operation management of thermal energy loads and electrical energy loads, in which the thermal energy loads are supplied by electrical energy and gas energy. Moreover, this energy sharing model is designed to allow the operation with different types of end-user modes, and the participants are divided into different layers based on their characteristics. Furthermore, the modified trading method is based on the trading model of stock opening with the maximum transaction volume. The proposed two-layer model is tested in 18-bus IEEE system with the real historical data in the Australia energy market. With the proposed two-layer energy sharing strategy, the simulation results show that the two-layer energy sharing model provides economic profits to participants and encourages load schedule.