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Analysis and Research on Coupling Characteristics of Temperature and Humidity Control System Based on Industrial Process

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DOI: 10.23977/ssge.2022.040105 | Downloads: 3 | Views: 283

Author(s)

Mingqiu Zhang 1, Liyu Jin 1, Jisheng Zhang 1, Bo Zhang 2

Affiliation(s)

1 College of Modern Manufacturing Engineering, Heilongjiang University of Technology, Jixi 158100, Heilongjiang, China
2 College of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China

Corresponding Author

Mingqiu Zhang

ABSTRACT

The artificial light source type plant factory has a special environmental structure, and there is a coupling relationship of mutual influence and mutual restriction between temperature and humidity, which is not conducive to the control and application of environmental parameters. Therefore, based on the analysis of the complete nonlinear dynamic model of the temperature and humidity control system, the transfer function of the temperature and humidity system of the artificial light source type plant factory is determined, and the PID control strategy is used to solve the coupling problem of the multi-input multi-variable (MIMO) system. Combined with the characteristics of the system process transfer function, based on the relative regularization gain matrix and coupling index, using the steady-state operating point environmental parameters, according to the temperature and humidity system control structure selection algorithm and decoupling, determine the supply air temperature and cold water flow pairing, internal The temperature and supply air flow are paired, the internal moisture content is paired with the supply air moisture content, the control strategy after the decoupling of the temperature and humidity system is established, and the system control structure in the artificial light source type plant factory is determined to control the temperature and humidity environment equipment. The implementation lays a theoretical basis for it.

KEYWORDS

Temperature and Humidity; Control Strategy; Coupling Characteristics; Gain Matrix; Coupling Index

CITE THIS PAPER

Mingqiu Zhang, Liyu Jin, Jisheng Zhang, Bo Zhang, Analysis and Research on Coupling Characteristics of Temperature and Humidity Control System Based on Industrial Process. Smart Systems and Green Energy (2022) Vol. 4: 24-36. DOI: http://dx.doi.org/10.23977/ssge.2022.040105.

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