Lancaster EPrints

Nonlinear control of ventilation rate using state dependent parameter models

Taylor, C. James and Stables, M. A. (2006) Nonlinear control of ventilation rate using state dependent parameter models. Biosystems Engineering, 95 (1). pp. 7-18. ISSN 1537-5110

Full text not available from this repository.

Abstract

The objective of this paper is to develop non-linear proportional-integral-plus (PIP) control algorithms for regulating ventilation rate in mechanically ventilated agricultural buildings. State-dependent parameter (SDP) models are developed for an environmental test chamber, representing a section of a livestock building or glasshouse. Here, the system is modelled using the quasi-linear SDP model structure in which the parameters are functionally dependent on other variables in the system. The model is subsequently utilised to develop a new approach to control system design, based on non-linear PIP pole assignment, with a discrete-time Smith Predictor to handle the sampled time delays. Implementation results for the test chamber demonstrate improved control of ventilation rate, with a faster response to disturbances in comparison with both linear and conventional (linearised) scheduled PIP control. The approach has application to a wide class of other non-linear systems, as demonstrated by simulation examples.

Item Type: Article
Journal or Publication Title: Biosystems Engineering
Uncontrolled Keywords: Non-linear ; state-dependent parameter ; ventilation rate ; proportional-integral-plus
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
Faculty of Science and Technology > Physics
ID Code: 8147
Deposited By: Mr Richard Ingham
Deposited On: 11 Apr 2008 11:49
Refereed?: Yes
Published?: Published
Last Modified: 24 Jan 2014 05:20
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/8147

Actions (login required)

View Item