Research on Cross-subsidy of Wind Farms Integrated and Injecting Power to the Grid

On the basis of a detailed analysis on power output of wind farms, this paper establishes a quantitative model of cross-subsidy between conventional power plants and wind farms and its identifying indicator through the technique of probabilistic production simulation and then analyzes a calculating instance with data from the IEEE-RTS system to base on. Results demonstrate the reasonability and effectiveness of this model. The work in this paper is helpful to market regulators and operators in accurately identifying the degree of wind farms’ cross-subsidy in a power system and taking effective measures to ensure the system's security, reliability and economy.