NDLI: Decentralized control of a variable air volume system

Content Provider	IEEE Xplore Digital Library
Author	Zaheer-uddin, M. Patel, R.V. Al-Assadi, S.A.K.
Copyright Year	1994
Description	Author affiliation: Centre for Building Studies, Concordia Univ., Montreal, Que., Canada (Zaheer-uddin, M.)
Abstract	Decentralized and partially decentralized control of a multizone variable air volume (VAV) system is studied. The VAV system consists of two environmental zones and an air distribution system. By assuming that the temperature of supply air is perfectly controlled and therefore remains constant, an eighth-order nonlinear model of the VAV system is developed. The control problem is to regulate the zone temperatures and air flow rates in response to step changes in cooling loads acting on the system. Decentralized controllers are designed by minimizing a quadratic performance index subject to constraints on the input energy and the eigenvalues of the slow and fast modes of the linearized model to preserve the two time scale property of the system. The designed controllers are implemented on the nonlinear system. The resulting closed-loop system responses show that good regulation of the zone temperatures can be achieved while maintaining sufficient air flow rates in the system with the designed decentralized controllers.
Starting Page	3050
Ending Page	3054
File Size	593739
Page Count	5
File Format	PDF
ISBN	0780317831
DOI	10.1109/ACC.1994.735131
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-06-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Distributed control Control systems Cooling Pressure control Temperature control Steady-state Ducts Control system synthesis Performance analysis Eigenvalues and eigenfunctions
Content Type	Text
Resource Type	Article

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