Research on Photovoltaic-Storage Coordinated Power Supply Technology for Agri-Photovoltaic Complementary Systems

Against the backdrop of the "dual carbon" goals, agri-photovoltaic complementary systems, as an important form of integration between agriculture and renewable energy, urgently require improvements in power supply stability and energy utilization efficiency. To address the mismatch between photovoltaic output fluctuations and agricultural load demands, this paper investigates photovoltaic-storage coordinated power supply technology. By analyzing the supply-demand characteristics of agri-photovoltaic complementary systems, a photovoltaic-storage coordinated power supply architecture is constructed. A multi-timescale-based capacity collaborative configuration method and a hierarchical energy management strategy considering agricultural priority are proposed. Furthermore, a system resilience enhancement mechanism is developed for abnormal operating conditions to achieve optimal scheduling and stable operation of the photovoltaic-storage system. Testing and validation conducted on a typical engineering case demonstrate that the proposed method achieves favorable results in improving power self-sufficiency rate, reducing power fluctuations, and ensuring power supply to critical loads.