Control method, device and equipment for heat supply system of thermal power plant and storage medium

The invention relates to the technical field of heat supply systems, and particularly discloses a control method, device and equipment of a heat supply system of a thermal power plant and a computer readable storage medium. The high-pressure steam turbine set, the medium-pressure steam turbine set, the low-pressure heat supply pipeline and the medium-pressure heat supply pipeline are communicated with a main steam pipeline of the boiler; the steam output end of the medium-pressure steam turbine unit is communicated with the input end of the low-pressure heat supply pipeline; the control method comprises the steps that the opening degree of a high control valve is adjusted according to the current first demand flow of a low-pressure heat supply pipeline and the second demand flow of a medium-pressure heat supply pipeline; and the overflow amount corresponding to the current main steam flow of the main steam pipeline is adjusted, so that the steam pressure of the low-pressure heat supply pipeline and the steam