System and method for joint scheduling of extracting-condensing type heat and power cogeneration and straight condensing thermal power generation

Abstract

The invention provides a system and a method for joint scheduling of extracting-condensing type heat and power cogeneration and straight condensing thermal power generation. The system comprises a heat and power cogeneration unit, a straight condensing type thermal power generating unit, an air conditioner heat pump, an electric energy meter, a radiator, a heat consumption meter, a second remote centralized controller and a scheduling control device, wherein the second remote centralized controller is used for acquiring power consumption data detected by the electric energy meter and heat consumption data detected by the heat consumption meter; and the scheduling control device is used for controlling the heat and power cogeneration unit, the straight condensing type thermal power generating unit, the air conditioner heat pump and the radiator to operate through a first remote centralized controller, the second remote centralized controller and a third remote centralized controller. According to the system and the method, the condensing type thermal power generating unit and the heat and power cogeneration unit which are independently operated conventionally are subjected to joint scheduling by acquiring distances between users and heat source pipelines and using the reasonability of the pipeline distances, so that the total energy consumption of the heat and power cogeneration unit and the straight condensing type thermal power generating unit is effectively lowered, the waste of fuel resources is prevented, and the scheduling is more timely and accurate at the same time.

Description

technical field [0001] The invention relates to an urban comprehensive energy supply system, in particular to a method for realizing optimal control of a power system by scheduling heating loads. Background technique [0002] The existing power grid includes two power generation modes: 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 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 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 cogeneration unit operation is limited by the operating condition map of "power determined by heat". That is to say, ...

AI Technical Summary

Problems solved by technology

This method of peak regulation results in high coal consumption loss in low-load operation, which is not energy-saving from the perspective of the overall energy consumption of the power grid.

[0008] The heating hot water produced by the coal-fired steam extraction and condensing cogeneration unit has a certain distance to reach the user due to the limitation of the transportation distance and the flow rate of the hot water, while the generated electricity can reach the user instantly; the existing technology However, there is no reasonable joint scheduling control for coal-fired extraction and condensing cogeneration units and coal-fired pure condensing thermal power units according to the distance between the coal-fired extraction and condensing cogeneration units and the heating users. The system and method make scheduling more timely and accurate, avoiding waste of energy

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