Variable Air Volume Room Temperature Control Method Based on Fuzzy PID and Predictive Control Algorithm

A predictive control algorithm and control method technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problem of poor adaptability to working conditions, weak adaptability, and difficulty in setting parameters of air conditioning systems And other issues

Inactive Publication Date: 2016-09-07
HOHAI UNIV CHANGZHOU
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a variable air volume room temperature control method based on fuzzy PID and predictive control algorithm, and solve the problems of difficulty in parameter setting of the air conditioning system in the prior art, poor adaptability to working conditions, and self-adaptation. Incompetent technical issues

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  • Variable Air Volume Room Temperature Control Method Based on Fuzzy PID and Predictive Control Algorithm
  • Variable Air Volume Room Temperature Control Method Based on Fuzzy PID and Predictive Control Algorithm
  • Variable Air Volume Room Temperature Control Method Based on Fuzzy PID and Predictive Control Algorithm

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[0038] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0039] The present invention is directed at the room temperature control method of the variable air volume air conditioning system. The variable air volume air conditioning system is to fix the air supply temperature, and automatically adjust the air supply volume of the room according to the change of the indoor load, so as to maintain the temperature of the room to meet people's living and working needs. . Therefore, the actuator of the control method proposed by the present invention is the end air valve of the room, and adopts a pressure-dependent end air valve.

[0040] Such as figure 1 Shown is the control principle diagram of the variable air volume room temperature control method based...

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Abstract

The invention discloses a variable air volume room temperature control method based on fuzzy PID and predictive control algorithm. The PID parameter increment is used to output the corrected opening of the terminal air valve; the opening of the terminal air valve of the fuzzy adaptive PID controller is subtracted from the opening degree of the terminal air valve at the previous moment by using the delay link to obtain the opening degree of the terminal air valve. The change amount of the terminal air valve opening degree is obtained through the predictive control algorithm to obtain the actual opening degree of the terminal air valve, and the room temperature is maintained at the set value and remains unchanged. The invention adopts a control method combining fuzzy PID and predictive control algorithm, and solves the technical problems of the prior art that the air-conditioning system has great difficulty in parameter setting, poor working condition adaptability and weak adaptability.

Description

technical field [0001] The invention relates to a room temperature control method, in particular to a variable air volume room temperature control method based on fuzzy PID and predictive control algorithm. Background technique [0002] For variable air volume air conditioning systems, there are many control methods, such as conventional PID, fuzzy PID, and neural network control methods, which have become relatively common control technologies. The requirements are very high, so for the variable air volume air conditioner with characteristics such as large time lag and nonlinearity, it is very difficult to set parameters. Although the fuzzy PID control method developed on the basis of the conventional PID control method can adapt to the nonlinearity of the room temperature control of the air-conditioning system to a certain extent, because the fuzzy PID mainly uses the fuzzy rule base derived from the experience of experts, in engineering practice In the application of the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/053F24F11/76
Inventor 白建波李洋王孟
Owner HOHAI UNIV CHANGZHOU
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