Multi-energy complementary photo-thermal energy storage system

The invention discloses a multi-energy complementary photo-thermal energy storage system which comprises a deaerator, a feed water heater, a heat absorber, a steam overheating device, a steam heat accumulator and an electric heating system. Deoxygenated water in the deaerator flows to the heat absorber through the feed water heater, steam in the heat absorber is conveyed to a heat user through the steam overheating device, heat supply return water from the heat user is conveyed to the deaerator through a pipeline, and the deoxygenated water can flow to the steam heat accumulator through the deaerator. The steam can also be respectively conveyed to the steam heat accumulator, the deaerator and the feed water heater from the heat absorber; according to the system, multiple clean energy sources mainly including solar energy are utilized, complementary energy storage and stable heat supply can be achieved, and heat supply at night is guaranteed through power grid valley electric energy at night. 本发明公开了一种多能互补光热储能系