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A central air-conditioning modeling and control strategy considering the fresh air system

A fresh air system and central air-conditioning technology, which is applied in heating and ventilation control systems, heating and ventilation safety systems, and control input related to air characteristics, etc. It can solve the problems of rare central air-conditioning research and lack of theoretical guidance for load regulation capabilities.

Active Publication Date: 2018-08-10
SOUTHEAST UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, from the perspective of the power system, the research on central air-conditioning that takes into account the fresh air system is rare, and the mining of its load regulation capacity lacks theoretical guidance.

Method used

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  • A central air-conditioning modeling and control strategy considering the fresh air system
  • A central air-conditioning modeling and control strategy considering the fresh air system
  • A central air-conditioning modeling and control strategy considering the fresh air system

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Embodiment Construction

[0075] The present invention will be further described below in conjunction with the accompanying drawings.

[0076] A central air-conditioning modeling and control strategy considering the fresh air system. The operation of the central air-conditioning system involves three cycles, namely the cooling water cycle, the chilled water cycle, and the air cycle of the fresh air system. The cooling water cycle transfers the heat in the refrigerator through cooling The water is brought into the cooling tower for cooling, and the chilled water circulation brings the cold generated by the refrigerator into the surface cooler through the chilled water, and the chilled water circulates through the surface cooler to exchange heat with the air circulation. Set a fixed-speed cooling water pump, and set a variable-speed chilled water pump on the chilled water cycle; the specific implementation process is as follows: figure 1 As shown, each step will be described in detail below.

[0077] St...

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Abstract

The invention discloses a modeling and controlling strategy for a central air conditioner with a fresh air system. The modeling and controlling strategy includes the following steps of building a thermodynamic model of a building where the central air conditioner is installed, namely, the relation between indoor and outdoor temperatures and the cold capacity of the building; building an energy consumption model of the central air conditioner with the fresh air system, namely the relation between the air conditioner load and decision variables; determining a control strategy, namely determining the target function, control variables, constraint conditions and the like; and working out the highest adjusting potential of the load of the central air conditioner, comparing the adjusting results of different control modes, researching the system load of the central air conditioner and participating in load tracing. By finely building the model and determining the cooperative optimization strategy of the control variables, a scientific theory support is provided for the central air conditioner with the fresh air system to participate in operation of a power system.

Description

technical field [0001] The invention relates to a central air-conditioning modeling and control strategy considering a fresh air system, which belongs to the power system and its automation technology. Background technique [0002] At present, the research on air-conditioning is gradually increasing, and the technology of air-conditioning is also developing continuously. In the field of power system, the air-conditioning load has a great adjustment potential. There are two prerequisites for the adjustment of the air-conditioning load: 1) the air-conditioning and the room to which it belongs constitute a system with heat storage capacity; 2) the human body has a certain range of comfort. The power of the air conditioner load within this range also has room for adjustment. The advent of the era of big data and the continuous improvement of Internet technology and communication methods have also laid the foundation for air-conditioning loads to participate in the operation and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/65F24F110/12
CPCF24F11/30F24F11/62F24F11/65F24F2110/10F24F2110/12
Inventor 高赐威张良杰
Owner SOUTHEAST UNIV
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