Temperature control in a cavity of refrigeration using PI controller and predictive control

被引：0

作者：

Aridhi, Emna ^{[1
]}

Abbes, Mehdi ^{[2
]}

Mami, Abdelkader ^{[1
]}

机构：

[1] Fac Sci Tunis, Dept Phys, Turns El Manar, Tunisia

[2] Natl Sch Engn Tunis, Dept Automat, Turns El Manar, Tunisia

来源：

201415TH INTERNATIONAL CONFERENCE ON SCIENCES & TECHNIQUES OF AUTOMATIC CONTROL & COMPUTER ENGINEERING (STA'2014) | 2014年

关键词：

temperature control; predictive control; PI controller; refrigeration cavity; energy saving;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A PI controller and a generalized predictive control strategy of the temperature inside a cavity of refrigeration are proposed, using Matlab/Simulink environment. The control strategies were applied to a third-order discrete state space system, which computes the internal air temperature according to the temperature at the level of the evaporator exchanger, under the influence of the ambient temperature. The system was obtained by linearization of a pseudo bond graph model of thermal transfers inside the refrigeration cavity. The simulation results were compared to those of the pseudo bond graph model for a classical thermostatic control. The used control strategies allowed an average energy saving of about 70% compared with the conventional on/off controller. The predictive control was more efficient than the PI controller of 23.33 %.

引用

页码：123 / 128

页数：6

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