Optimal Scheduling Method of Community Microgrid with Customer-owned Distributed Energy Storage System

Abstract

As the penetration of renewable energy resources in power systems increases, high voltage (HV) power systems require solutions that solve the problems regarding supply and demand balance caused by these resources. Community microgrids can provide a viable solution to this problem by providing flexibility service to the HV power system. This study presents an optimal scheduling method of community microgrids with distributed energy storage systems (DESSs) under the circumstance providing flexibility service. Providing the flexibility service is achieved by controlling the power purchased from the external grid and mitigating the variability of the microgrid's net load. DESS is considered as non-controllable DER in this paper. A customer DESS (CDESS) market scenario, based on a price signal market model, is proposed to consider DESS in the microgrid operation. The proposed method is divided into the controllable DER scheduling method, considering the variability of net load, and the CDESS market operation method. Numerical simulations are carried out to demonstrate the effectiveness of the proposed method.