Research on Voltage Control Strategy of DC Microgrid System

New energy sources such as solar energy, tidal and geothermal possess characteristics of random dispersion, making centralized utilization unfeasible. Microgrid structures control methods are relatively simple, enabling rational new sources, have garnered widespread attention. Compared to AC microgrids, DC microgrids easier control, reduce conversion steps, eliminate factors like reactive power, maintain frequency consistency. Thus, they more conducive the efficient coordinated energy. This paper investigates strategy a photovoltaic storage-based microgrid system. By assessing range bus voltage power balance between output load absorption within system, operational approach for photovoltaic-energy storage is proposed. Segregating system into various operating states based on different units storage, system's operation becomes economical. further validates feasibility proposed strategy.