A two stage algorithm for optimal management of isolated microgrid

Abstract

The critical issues in a renewable energy based microgrid are ensuring continuous availability of power to the critical loads, and to provide supply to the maximum possible portion of the system under any abnormal conditions by topology management. An intelligent load shedding and fast reconfiguration of the system is therefore necessary in order to serve the critical loads and to maintain a proper power balance in the microgrid. This paper presents a novel two stage strategy for load shedding and reconfiguration of microgrid using Binary Firefly Algorithm (BFA). In the first stage, the BFA determines the optimal load configuration with minimum load shedding. Reconfiguration of the microgrid with minimum number of switching operations to serve maximum load is done in the second stage using BFA. The strength of the proposed strategy is that reconfiguration is done only if necessary and is illustrated with MATLAB results on modified Consortium for Electric Reliability Technology Solutions(CERTS) microgrid.

Hybrid Maritime Microgrids: A Quest for Future Onboard Integrated Marine Power Systems

“…A lot of research is being conducted to optimize the operation of maritime microgrids such as enhancing reliability and survivability, improving stability using virtual synchronous generators, and minimizing power curtailment. References [1][2][3][4][5][6][7][8][9][10][11][12][13]20] provide literature on some of these techniques.…”

“…The renewable energy resources used in [9] are modeled using HOMER platform. A two-stage technique for isolated microgrid systems is introduced in [10]. The method proposed in [10] used graph theory and binary firefly algorithm to perform minimum load curtailment in the isolated microgrid.…”

“…A two-stage technique for isolated microgrid systems is introduced in [10]. The method proposed in [10] used graph theory and binary firefly algorithm to perform minimum load curtailment in the isolated microgrid. Methods for service restoration of marine power systems have also been presented in [11][12][13].…”

Optimal Load Shedding for Maximizing Satisfaction in an Islanded Microgrid

“…In References [10][11][12], a heuristic method was adopted to solve the load shedding problem. In References [10,11], load shedding strategies were proposed in which a V-shaped transfer function for binary particle swarm optimization or a binary firefly algorithm was used.…”

“…In References [10,11], load shedding strategies were proposed in which a V-shaped transfer function for binary particle swarm optimization or a binary firefly algorithm was used. The objective function is to meet the maximum demand based on the priority.…”