Extraction regulation type turbo generator unit, load control method and primary frequency regulation method

The invention discloses an extraction regulation type turbo generator unit, as well as a load control method and a primary frequency regulation method based on the turbo generator unit. The turbo generator unit comprises a steam turbine, an electric generator, a condenser, a steam heating system and a load regulation system; the electric generator is driven by the steam turbine; an extraction opening formed in the steam turbine is connected with the steam heating system through an extraction pipeline; an exhaust opening formed in the steam turbine is connected with the condenser; steam entering from the extraction pipeline and condensation water entering from a condensation water pipeline are subjected to heat exchange through the steam heating system and then conveyed into a boiler; the condensation water is heated by the boiler, and thus, steam with the appropriate parameter is produced; the output end of the boiler is in corresponding connection with the input end of the steam turbine through the steam pip