Decentralized PI-D Controller Applied to an Aerothermic Process

The aerothermic process is a pilot scale heating and ventilation system. It is equipped with a heater grid and a centrifugal blower, fully connected through the Humusoft MF624 data acquisition system for real time control. The interaction between its main variables is considered as challenging for m...

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Bibliographic Details
Published inInternational journal on smart sensing and intelligent systems Vol. 5; no. 4; pp. 1003 - 1018
Main Authors Ramzi, M., Bennis, N., Haloua, M., Youlal, H.
Format Journal Article
LanguageEnglish
Published Sydney Sciendo 01.01.2012
De Gruyter Poland
Subjects
Aerothermic Process
Air flow
Air temperature
Continuity (mathematics)
Controllers
Decentralized PI-D Controller
Derivative kick
PI controller
Proportional integral derivative
State space models
static decoupler
TITO control systems
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Summary:The aerothermic process is a pilot scale heating and ventilation system. It is equipped with a heater grid and a centrifugal blower, fully connected through the Humusoft MF624 data acquisition system for real time control. The interaction between its main variables is considered as challenging for mono-variable controllers. An abrupt change in the ventilator speed might cause an undesirable disturbance in the air temperature representing a factor that must be managed to conserve energy. To annul the effect of this interaction, this paper presents an experimental comparison between three forms of the PID controller: the conventional PID controller, the PI-D controller and its decentralized version. A multi-variable continuous state space model is obtained from on-line experimental data. The outcome of the experimental results is that the main control objectives, such as set-point tracking and interactions rejection, are well achieved for the temperature and the air flow simultaneously.
ISSN:1178-5608
1178-5608
DOI:10.21307/ijssis-2017-520