Abstract: The large-scale and high proportion development of new energy requires more urgent regulation power supply. The semi-dispatching model and solution method of the combined system including wind power, photovoltaic power, hydropower, thermal power and pumped storage power supply are proposed. Firstly, the semi-dispatching mode is adopted to determine the startup combination of thermal power units based on the load and standby demand during peak load period. Furthermore, the working state of the pumping unit is determined by predicting the generation/pumping power of the pumping unit, and the independent solution of discrete integer variables is realized. Secondly, the risk utility function is constructed to quantify the attitude of pumped storage to the uncertainty of new energy output, and complete the market quotation and clearing of auxiliary services. Finally, with the goal of minimizing the total quoted cost, the WSHTPC model is constructed, and the feasibility and effectiveness of the proposed model and solution method are verified by example simulation under different new energy permeability.