Abstract: In today’s increasingly open power market, power generation enterprises, as the direct interest body in the dispatching process, will have greater autonomy. For dispatching a regional power grid, how to use an optimal strategy to balance the benefits among the power plants connected to it is a key issue to be settled. In this work, a power system dispatching model of three independent game participants ? wind farms, thermal power plants and pumped storage hydropower stations ? was developed using the non-cooperative game theory and considering constraints of wind power utilization. It adopts a decision space balancing the output strategies among the participants and optimizes each participant’s profit. To solve the dispatching model, a Nash equilibrium algorithm was constructed to comprehensively consider different characteristics of power plant outputs of various types. Calculations show that this model can generate Nash equilibrium solutions to the problems of daily dispatching for a power system with power plants of the three types in different scenarios. And in a case study, it achieved an increase of 3.2% - 6.2% in the parties’ interest balance degrees and significantly improve the stability of their interests; in the condition of the same interest balance, it achieved an increase of 2.8% - 3.0% in wind power output.