System and method for avoiding startup and shutdown peaking by matching heat and power cogeneration unit with pure condensing thermal power unit

Abstract

The invention relates to a system for avoiding startup and shutdown peaking by matching a heat and power cogeneration unit with a pure condensing thermal power unit, which comprises the heat and power cogeneration unit, the pure condensing thermal power unit, a heat pump of an air conditioner, an electric energy meter, a radiator, a heat consumption meter and a dispatching control device, wherein the electric energy meter is used for detecting power consumption data, the heat consumption meter is used for detecting heating heat consumption data, the dispatching control device is further used for collecting the power consumption data, the heating heat consumption data and all energy consumption during one startup and shutdown of the pure condensing thermal power unit and further generating a dispatching control signal, and the dispatching control device is used for sending the dispatching control signal to the heat and power cogeneration unit, the pure condensing thermal power unit, the heat pump of the air conditioner and the radiator, and controlling the operation of the heat and power cogeneration unit, the pure condensing thermal power unit, the heat pump of the air conditioner and the radiator. The system can effectively avoid the startup and shutdown peaking of the pure condensing thermal power unit, and further reduce the fuel loss caused by the startup and shutdown peaking.

Description

technical field [0001] The invention relates to a heat and power cogeneration energy supply system, in particular to a system and method in which a heat and power cogeneration unit cooperates with a pure condensing steam thermal power unit to avoid peak regulation during start-up and shutdown. Background technique [0002] There are two power generation modes in the existing power grid: one is to provide electric energy solely from the power generated by the combined heat and power unit, and the other is to provide electric energy solely from the power generated by the pure condensing thermal power unit. These two generator sets operate independently. Among them, the combined heat and power unit supplies electric energy to end users and provides heating energy at the same time. The pure condensing steam thermal power unit can only provide electric energy to end users, and heat energy needs to be supplied by another thermal energy plant. [0003] The physical state of cogen...

AI Technical Summary

Problems solved by technology

But it does not solve the problem of how to avoid the peak shaving of pure condensing thermal power units

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