Photovoltaic-storage power generation system and its control strategies

https://elibrary.ru/ABKRTX

Abstract

As the position of new energy power generation becomes increasingly crucial in the energy system, its inherent volatility and uncertainty have given rise to numerous severe challenges. This study conducts an in-depth exploration of the coordinated control technology of photovoltaic (PV) and energy storage. By establishing a power generation system that integrates PV and energy storage, leveraging the generator-like characteristics exhibited by distributed inverters, and applying the small-signal model analysis method, the control strategy is optimized. Based on the MATLAB/Simulink simulation platform, a PV and energy storage power generation system and a three-phase off-grid model have been constructed. The technical approaches to enhancing the system penetration rate and improving the performance of the microgrid are emphatically investigated, with the aim of providing solid theoretical support for addressing the difficult problem of the stability of new energy grid connection.