Abstract: In order to explore the seasonal adaptability of the integrated power generation system of“photovoltaic thermal storage”based on compressed air energy storage,four typical days in a year are selected to represent four seasons of spring,summer,autumn and winter,the influence of seasonal characteristics on the five operating modes of the integrated power generation system are studied.The results show that the performance of the integrated power generation system changes greatly when the season changes. Among them,the performance of mode 2 and mode 3 is most affected by seasonal changes,mode 4 is not affected by the season but the performance is poor,and mode 5 has the best seasonal adaptability. In addition,the integrated power generation system can flexibly select the operation mode according to the actual operating conditions to improve the system efficiency.