Research on the Control Strategy of Photovoltaic Power Generation System Based on the Micro Grid

With the rapid growth of the electricity demand, UHVAC and UHVDC transmission and the distributed generation with the renewable energy become the key point of the development of power industry based on the goal of the harmonious development in the power industry at home. According to the certain topological structure, the micro grid is the network including the distributed power supply, energy storage power supply, and load-control devices. It is linked with the grid through the switch devices, realizing the effective management of the distributed generation. We can also find the value and benefits of the distributed generation for the power grid and the user. This paper discusses that the micro grid is the effective approach to solve the integration between distributed generation and power grid. It also summaries its concept and research status of the micro grid deeply. Then it knows the current application of photovoltaic power generation technology. Finally it concludes that the operation characteristic of the photovoltaic power generation system has the important research value in the micro grid.