The present invention relates to an electric peaking cogeneration (CHP) waste heat recovery apparatus and an operation method thereof. The apparatus includes an internal generator portion and a heat exchange station portion, wherein the internal generator portion includes a heat exchanger, a waste heat recovery electric heat pump, an energy-storage electric heat pump, a high / low temperature water storage tank, a heating network heater, A water pump; The heat exchange station portion mainly includes a high / low temperature water storage tank, an electric heat pump, a heat exchanger, a valve, and a circulating water pump; With respect to the operation of the device, the device can operate through different valve switch combinations during the lowest electric load, the uniform electric load and the peak electric load interval, respectively, and to balance the difference between the system heat supply and the heating load, Water storage tanks are used and low temperature water storage tanks are used to stabilize the steam exhaust waste heat recovery, thereby significantly improving the electric peak capacity, and in the traditional mode of operation ''determining heat electricity'' in the CHP, The problem of limiting the electric power generation peak capacity due to the interconnecting heat supply is solved. The CHP unit can participate in regulating the power grid load, improve the power grid conditioning capacity to handle the condition of the lowest-to-peak difference of the ever-increasing electrical load, and reduce wind suspension The absorption capacity of the power grid for power generation can be improved.
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