Abstract:In order to study the thermal economy of unit project of 1000 MW variable frequency generator, the scheme of 1000 MW variable frequency generator project of Anhui 1000 MW power plant is first planned, and the constant flow analysis method is used. It is found that Internet unit net work reduces after using the variable frequency generator, which illustrates that in theory the power supply standard coal consumption will rise. The thermal econmy of the project is in fact the negative earnings and it is thus suggested that the coustruction of the variable frequency generator program be postponed.