Thermoelectric cooperative regulation and control method and system based on heat supply network transmission time delay and heat storage characteristics

Abstract

The invention relates to a thermoelectric cooperative regulation and control method and system based on heat supply network transmission time delay and heat storage characteristics. The thermoelectriccooperative regulation and control method comprises the steps of constructing a heat supply load change curve of each time sequence segment in a scheduling period; evaluating the transmission delay of the heat supply network; describing the maximum heat storage capacity of the generalized energy storage system according to the transmission delay of the heat supply network; establishing a heat storage and release scheme of the generalized energy storage system for the corresponding time sequence fragments according to the heat supply load change curve, and establishing constraint conditions; constructing a quality regulation delayed heat supply feasibility scheme solution set according to the maximum heat storage capacity and the like; constructing a real-time heat supply quantity adjustment feasibility scheme solution set corresponding to the quality adjustment delay heat supply feasibility scheme solution set; and establishing a target function according to the heat supply load change curve so as to obtain a thermoelectric cooperative regulation and control strategy in the current scheduling period, thereby effectively relieving the frequent and large-amplitude fluctuation operation state of the unit operation load caused by the change of the electric load demand and the insufficient heat supply caused by the limitation of the thermoelectric load production matching relationship of the unit.

Description

technical field [0001] The invention belongs to the technical field of heat supply and energy saving, and in particular relates to a thermoelectric coordinated regulation method and system based on heat network transmission delay and heat storage characteristics. Background technique [0002] With the rapid development of clean energy such as wind power and photovoltaics and the increase in the proportion of grid-connected power generation, not only the role of traditional coal-fired power plants has changed from the original power supply to the current role of power grid peak regulation, but also has a great impact on the unit The peak shaving ability also puts forward higher requirements. Coal-fired cogeneration units, as an important infrastructure for urban central heating, face the development trend of urban central heating systems with large heating areas, long heating pipelines, and complex topological structures. It is often difficult to meet the requirements by cha...

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Problems solved by technology

Coal-fired cogeneration units, as an important infrastructure for urban central heating, face the development trend of urban central heating systems with large heating areas, long heating pipelines, and complex topological structures. It is often difficult to meet the requirements by changing the operation mode of the unit and improving the peak-shaving capacity of the unit, so it is necessary to make a breakthrough in new heat storage technology, deeply tap the peak-shaving margin of the combined heat and power unit, solve the problem of heat and power incoordination, and reduce energy consumption. Joint prevention and control of energy consumption and air pollution is of great significance

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