Multi-Objective Configuration Optimization for Isolated Microgrid with Shiftable Loads and Mobile Energy Storage

Abstract

For remote structures in military applications located in high mountains and outlying islands, the configuration of isolated microgrids constructed in these locations is highly important. To denote oxygen generation/seawater desalination devices and military battery packs in practical applications, shiftable load models and mobile energy storage models are used. A multiobjective optimization model, including the annual system cost, demand shortage rate, and the ratio of diesel energy supply, is constructed for configuration design. This model is solved using the improved preference-incentive coevolution algorithm (PICEA-ng) presented in this paper. Based on practical data and numerical simulation, the utilization strategy in terms of lost time and output power for mobile energy storage, stationary energy storage, diesel generators, and shiftable loads are generated and validated. Finally, the operational performance of the shiftable load and mobile energy storage over the entire microgrid system is analyzed and discussed.