Feedback linearization based control of a variable air volume air conditioning system for cooling applications

被引：39
|
作者：
Thosar, Archana [1 ]
Patra, Amit [1 ]
Bhattacharyya, Souvik [2 ]
机构：
[1] Indian Inst Technol, Dept Elect Engn, Kharagpur 721302, W Bengal, India
[2] Indian Inst Technol, Dept Mech Engn, Kharagpur 721302, W Bengal, India
来源：
ISA TRANSACTIONS | 2008年 / 47卷 / 03期
关键词：
VAVAC; feedback linearization; nonlinear control; air conditioning; energy optimization;
D O I：
10.1016/j.isatra.2008.03.001
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Design of a nonlinear control system for a Variable Air Volume Air Conditioning (VAVAC) plant through feedback linearization is presented in this article. VAVAC systems attempt to reduce building energy consumption while maintaining the primary role of air conditioning. The temperature of the space is maintained at a constant level by establishing a balance between the cooling load generated in the space and the air supply delivered to meet the load. The dynamic model of a VAVAC plant is derived and formulated as a MIMO bilinear system. Feedback linearization is applied for decoupling and linearization of the nonlinear model. Simulation results for a laboratory scale plant are presented to demonstrate the potential of keeping comfort and maintaining energy optimal performance by this methodology. Results obtained with a conventional PI controller and a feedback linearizing controller are compared and the superiority of the proposed approach is clearly established. (C) 2008, ISA. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：339 / 349
页数：11
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