Analysis of Frequency Stability and Renewable Energy Consumption in Multiple Micro Grids

A micro energy network is a comprehensive energy system that integrates multiple types of distributed energy, energy storage systems, and different energy loads. A single micro energy network has a smaller capacity, and multiple micro energy networks with similar distances can form interconnections for energy sharing. This article proposes a typical structure of a micro energy grid interconnection system, analyzes its frequency regulation and load characteristics based on the distributed energy generation and different load, and proposes criteria for frequency stability and analysis methods for regulation ability of the micro energy grid interconnection system. Then, an optimization scheduling model is established based on the intermittent energy consumption rate. Finally, the frequency stability of the system before and after interconnection and its ability to absorb intermittent energy were compared and analyzed using numerical examples, verifying the effectiveness and feasibility of the proposed theory.