Abstract:Photovoltaic power generation is affected by weather and illumination intensity, its output power has the characteristics of intermittency and fluctuation.As more and more new energy mainly photovoltaic is connected to the distribution station area, it not only changes the single-end power supply mode, but also brings great influence on the safe and stable operation of the station. Photovoltaic power supply is a supplement to the station power supply.In this paper, the random output characteristics of photovoltaic power and the typical characteristics of the station were taken into account to carry out a scientific and reasonable analysis of the loss mechanism of the photovoltaic high penetration station. Under the premise of ensuring the safety, reliability and operation economy of the power grid, the influence of photovoltaic capacity, location, power factor and other factors on the operation of the station was studied for the purpose of energy saving and loss reduction. In this paper, the random output characteristics of photovoltaic power and the typical characteristics of the station were taken into account to carry out a scientific and reasonable analysis of the loss mechanism of the photovoltaic high penetration station. Under the premise of ensuring the safety, reliability and operation economy of the power grid, the influence of photovoltaic capacity, location, power factor and other factors on the operation of the station was studied for the purpose of energy saving and loss reduction.Through the case simulation, the loss law of the photovoltaic platform area with different capacities and different positions was obtained. This paper studied the energy saving and loss reduction technology of the photovoltaic high permeability platform area, and then explored the access scheme of photovoltaic power supply in the platform area, and realized the optimization of the access mode of photovoltaic power supply, which has important practical significance for reducing the loss of the platform area.