Wide-load steam supply system of high side coupling pressure matcher and working method

The invention belongs to the technical field of combined heat and power generation, and discloses a wide-load steam supply system of a high side coupling pressure matcher and a working method.The wide-load steam supply system is characterized in that during high load, a unit supplies steam to a heat consumer normally by adjusting an intermediate-pressure cylinder, and during medium and low load operation, the pressure matcher is additionally arranged to eject low-pressure steam through high-pressure steam; the condition that the gas supply amount or the steam supply pressure is insufficient during low-load steam supply operation of the rotating partition plate of the heat supply unit can be effectively avoided, wide-load operation of the heat supply unit can be achieved through high-load and low-load steam source switching, the peak regulation requirement of a power grid is met, a new profit growth point is created for an enterprise, and meanwhile the steam supply stability can be improved. The system is smal