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Central air conditioner fine control method

A fine-grained control and central air-conditioning technology, applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., can solve the problems of large air-conditioning energy-saving space, energy-saving without air-conditioning, etc., to achieve Comprehensive energy-saving solutions, reduced power consumption, and obvious energy-saving effects

Active Publication Date: 2015-05-13
HOHAI UNIV
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  • Abstract
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Problems solved by technology

3. The air-conditioning and refrigeration system with variable flow rate and other methods are adopted, but none of them can completely save energy for the air-conditioning, and the energy-saving space of the air-conditioning is still large

Method used

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  • Central air conditioner fine control method
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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0028] Firstly, the energy consumption model of each subsystem of the air conditioner is established, including:

[0029] Chiller power P chiller Model:

[0030] P chiller =(Q nom ·COP nom ·Temp adj )·PLR adj

[0031] in: Temp adj = b 0 + b 1 · T CHWS + b 2 ...

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Abstract

The invention discloses a central air conditioner fine control method. The method includes the steps of establishing energy consumption models of all sub-systems of an air conditioner, determining parameters to be recognized in the models of all the sub-systems, determining constraint conditions, establishing a target function of a global optimization control model, and conducting optimizing through a genetic algorithm. Modeling is conducted for energy consumption of a central air conditioning system, and the power consumed when the central air conditioning system runs in a working state of the capacity smaller than the rated capacity is reduced through the genetic algorithm; through the cooperation of various control strategies, the all-directional air conditioner fine control is achieved, the energy conservation scheme is more comprehensive and exquisite, and the energy conservation effect is more remarkable.

Description

technical field [0001] The invention relates to a refined control method of a central air conditioner, which belongs to the field of energy saving of air conditioners. Background technique [0002] At present, the central air-conditioning system is designed according to the full load, but in the actual working environment, most of the time can not reach the full-load operation state, and most of them are operated under the partial load, that is, the central air-conditioning system is at low speed most of the time. Running under the working condition of the rated capacity, the thermal efficiency at this time is much lower than the operating efficiency under the rated load, resulting in a large amount of energy loss. Therefore, the central air-conditioning system should focus on the issue of energy saving and consumption reduction under the conditions of meeting the corresponding load, ensuring system stability, and achieving room comfort, and realize optimal control through t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/65F24F2110/00
Inventor 李世博陈星颖余昆
Owner HOHAI UNIV
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