Optimal Scheduling of Microgrid with Energy Storage System Considering Islanding Constraints

Abstract

This paper deals with the microgrid optimal scheduling, considering the islanding constraints with energy storage system. The main objective of this paper is to minimize the total operation cost and to optimize the power output of the microgrid by minimizing the losses of the energy storage system. The microgrid optimal scheduling problem is categorized into grid-connected operation as master problem and the islanded operation as subproblem. The scheduling decisions obtained in the grid-connected operation are examined in the islanded operation for feasible islanding. The suitable islanding cuts are generated to revise the scheduling decisions, if sufficient generation is not available. Islanding cuts generated will revise the generating units, energy storage system, and adjustable load schedules. This paper presents the numerical simulations using matlab to demonstrate the effectiveness of the microgrid optimal scheduling.