Central heating system on-demand precise regulation and control method based on models

Abstract

The invention discloses a central heating system on-demand precise regulation and control method based on models. The method comprises the following steps that S1, a heating station load predicting model is built according to the historical operation data of a heating station and weather data; S2, the next-day short-term heat load of the heating station is predicted under the given weather condition; S3, needed secondary side heat supply and flow are determined according to the needed heat load; S4, a plate exchange model of a heating station heat exchanger is built; S5, the needed primary side valve opening degree is calculated through the plate exchange model according to the needed heat load and secondary side heat supply temperature, and related control operation is executed accordingly; S6, a data driving model of the relation among the room temperature, return water temperature and weather parameters of all buildings is built; and S7, the set value of the return water temperatureof all building openings is calculated according to the models, so that adjusting valves of the building openings track the value. According to the method, the situation of excessive supply of the heating station can be effectively avoided, heat energy loss can be reduced, and the utilization efficiency of the heating station on energy is improved.

Description

technical field [0001] The invention belongs to the field of advanced control of heating systems, and in particular relates to a method and system for model-predicting the load of each building on the secondary side and optimizing the flow of each building in order to realize on-demand precise regulation of the central heating system . Background technique [0002] The heating system produces high-temperature hot water in the heat source plant and drives the hot water to circulate in the primary side pipe network to deliver heat energy to each thermal station. In the thermal station, the primary side and the secondary side perform heat exchange to transfer heat from the primary side to the secondary side. The heat is exchanged from the secondary side to the secondary side, and the secondary side supplies heat to each heat user in the secondary side pipe network. However, the current thermal power station cannot accurately predict the specific load demand of each heat user. ...

AI Technical Summary

Problems solved by technology

[0002] The heating system produces high-temperature hot water in the heat source plant and drives the hot water to circulate in the primary side pipe network to deliver heat energy to each thermal station. In the thermal station, the primary side and the secondary side perform heat exchange to transfer heat from the primary side to the secondary side. The heat is exchanged from the secondary side to the secondary side, and the secondary side supplies heat to each heat user in the secondary side pipe network. However, the current thermal power station cannot accurately predict the specific load demand of each heat user. Problems, often take measures of excessive heat supply, resulting in energy waste, low utilization efficiency and other issues

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