A load-shedding scheme using optimization for proportional fairness in the islanded microgrid

Abstract

In Islanded operation mode of the microgrid, one of solutions to meet the balance between supply and demand of power is load-shedding. The some of conventional schemes employ the game theoretic approach to solve the load-shedding problem. However, the schemes consider the load uses a continuous range of values to present its load demand, and ignore the discrete characteristic of the load demand. Thus, the waste of the power in loads may be happened and the balance of the power may be threaten. In this paper, we define the problem of the conventional schemes and propose the optimization solution for system efficieicy and proportional fairness. © 2011 Springer-Verlag Berlin Heidelberg.