Multi-objective Optimization Model for Load Management in Islanded Microgrids

In this paper, a multi-objective optimization model is proposed to minimize the load curtailments when the generation capacity of an islanded microgrid is less than the load demand. The proposed model minimizes the generation cost and total load curtailments and also minimizes the maximum load curtailment. Furthermore, the impact of the penalty coefficients of total load curtailment and maximum load curtailment is analyzed, which provides a strategy to choose the value of the two penalty coefficients according to different practical purposes. The proposed model can be used in both micro grid generation scheduling and micro grid planning problems. It was tested in the Bronzeville Community Microgrid model and the results showed that the proposed model can reduce the total load curtailment and maximum load curtailment.