Research on Multi-Source Combined Supply System

In order to reduce the cost of the power generation system, reduce the rate of system wind and light abandonment, and build a cleaner, safer and more efficient power system, this paper establishes a PV-wind-battery optimal scheduling model with the objective of minimizing the system operating cost, and the system power balance, and the battery SOC range as constraints. The multi-source joint power supply system containing wind power, photovoltaic, energy storage system, and main grid is analyzed in the arithmetic example, and the daily power supply system cost is at least 0.173 million yuan when there is energy storage system participation, and the daily power supply cost is at least ${0 . 1 7 9}$ million yuan when there is no energy storage system participation, and the penalty cost of both of them for wind and light abandonment is 0.098 million yuan and 0.115 million yuan. It is proved that the system containing energy storage can effectively reduce the system power supply cost and reduce the rate of wind and light abandonment.