Multi-energy complementary type thermal power plant service power system

An auxiliary power system of a multi-energy complementary thermal power plant comprises a plurality of generators, the generators are connected with a main transformer and then sent out through a high-voltage power distribution device, outlets of the generators are connected with a plant high-voltage transformer, and the plant high-voltage transformer adopts a three-roll transformer. And a third winding of the three-roll transformer is connected with a photovoltaic power station and a wind power plant arranged in a thermal power plant area through a bus connected with the third winding, and is also connected with an energy storage device and a heat storage device, so that the multi-energy complementary thermal power plant power system containing thermal power, wind power, photovoltaic, energy storage and load is formed. According to the utility model, the purposes of reducing station service power consumption rate, realizing comprehensive utilization of natural resources and space resources and improving econ