Modelling the robustness properties of HVAC plant under feedback control

Gouda, M. M., Underwood, Chris and Danaher, Sean (2002) Modelling the robustness properties of HVAC plant under feedback control. Building Services Engineering Research and Technology, 24 (4). pp. 271-280. ISSN 01436244

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Gouda MM, Underwood CP, Danaher S - Modelling the robustness properties of HVAC plant under feedback control - conference paper.pdf

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Official URL: http://dx.doi.org/10.1191/0143624403bt077oa

Abstract

Most existing building simulation programs fail to capture sufficient of the underlying dynamics of nonlinear HVAC plant and some have restricted room space modelling capabilities for low-time-horizon analyses. In this work, a simplified model of a room space with hot water heating and a chilled ceiling system is developed for the main purpose of analysing control system response. The room model is based on a new approach to lumped capacitance modelling and the heating and chilled ceiling emitters are modelled using third-order descriptions. Control system components are treated in detail and both controllers are ‘tuned’ at a nominal region of plant operation using a gradient-descent-based optimization procedure. Robustness qualities of the controllers are analysed with reference to extremes in plant operating conditions. A key feature of the work is the transparency of the modelling procedure, designed to have appeal to researchers as well as practitioners involved with HVAC control system design problems.

Item Type: Article
Subjects: K200 Building
Department: Faculties > Engineering and Environment > Geography
Depositing User: EPrint Services
Date Deposited: 07 Jan 2011 12:02
Last Modified: 08 May 2017 15:18
URI: http://nrl.northumbria.ac.uk/id/eprint/224

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