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Title:Dynamic Modeling and Advanced Control of Air Conditioning and Refrigeration Systems
Author(s):Rasmussen, Bryan Philip
Doctoral Committee Chair(s):Alleyne, Andrew G.
Department / Program:Mechanical Engineering
Discipline:Mechanical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Engineering, Mechanical
Abstract:This dissertation makes contributions on both fronts and can be divided into two distinct parts. The first portion of the dissertation presents the development, simulation, and experimental validation of a first principles modeling framework that captures the dynamics of a variety of vapor compression cycles in a form amenable to controller design. These models are highly nonlinear, and require a nonlinear control strategy to attain high performance over the entire operating envelope. To this end, a gain-scheduled control approach based on local models and local controllers is presented that uses endogenous scheduling variables. This comprises the second portion of the dissertation, where a theoretical framework for designing gain scheduled controllers, tools for analyzing the stability of the nonlinear closed loop system, and experimental evaluation of advanced control strategies for vapor compression systems is presented. These results demonstrate that while linear control techniques offer significant advantages versus traditional a/c control systems over small ranges, the gain-scheduled approach extends these advantages over the entire operating regime.
Issue Date:2005
Type:Text
Language:English
Description:291 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2005.
URI:http://hdl.handle.net/2142/83841
Other Identifier(s):(MiAaPQ)AAI3202157
Date Available in IDEALS:2015-09-25
Date Deposited:2005


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