关键词: 多时间尺度, 并网型微电网, 协调调度, 改进原子搜索算法, 全局经济性

Abstract: The grid-connected microgrid encompasses photovoltaic cells, wind turbines, battery energy storage systems, diesel generators, and variable loads. The complex coupling relationships among its internal equipment, coupled with the inherent uncertainty of wind and solar renewable energy and the volatility of loads, pose challenges to microgrid dispatching. To address this, this study constructs an optimized microgrid model integrated with a demand response mechanism for electricity prices, with the core objective of minimizing the overall system operating cost. Through an improved atom search optimization, multi-time scale economic optimal dispatching is achieved. To ensure the economic feasibility and practicality of the strategy, the study employs an optimized atom search optimization to solve for the economic optimum of the microgrid model across various time scales. This initiative aims to enable rapid response to internal fluctuations in the microgrid system while ensuring optimal overall economic performance.

Key words: multi-time scale, grid-connected microgrid, coordinated scheduling, improved atom search optimization, global economy