Open AccessResearch on Temperature and Humidity Decoupling Control of Constant Temperature and Humidity Test Chamber
Author(s) -
Liheng Wang,
Zhiwei Zhu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/711/1/012104
Subject(s) - humidity , decoupling (probability) , feed forward , control theory (sociology) , temperature control , pid controller , control system , environmental science , computer science , control engineering , thermodynamics , engineering , control (management) , physics , electrical engineering , artificial intelligence
The temperature and humidity system is a system commonly used in industry and is recognized as one of the most complex systems. Temperature and humidity are important parameters for improving production quality in industrial production. To carry out effective control, factors such as nonlinearity, large hysteresis and real-time change must be considered, and there is mutual coupling between temperature and humidity. Temperature change will lead to humidity. The change of humidity and the same change of temperature will also affect the temperature change. The positional PID control can achieve satisfactory results. In this paper, through the analysis of the temperature and humidity system model, the feedforward decoupling compensation method is adopted for the characteristics of the temperature and humidity control system, which provides an effective way for the modeling and control of the temperature and humidity system. The simulation results show that the feedforward decoupling controller designed in this paper can achieve satisfactory results under various experimental conditions.