Joint Maintenance Scheduling of Generation Units and Energy Storage Systems

It is essential to consider electric energy storage systems in power system studies due to increasing utilization of these energy resources. In this paper we augment the generation maintenance scheduling problem to consider effects of energy storage systems. In the new formulation the outage schedules of generation units and energy storage systems are determined jointly. The problem is modeled in such a way that the main effect of energy storage systems, -which is switching between charge and discharge mode to comply with power system requirements- is considered. The model is formulated as a mixed integer linear programming problem and is implemented in test systems. The results show the capability of the proposed model in joint maintenance scheduling of generation units and energy storage systems.