2011
HMS 2011 Proceeding
An LPV Model for a Marine Cooling System with Transport Delays
Authors: Michael Hansen, Jakob Stoustrup, Jan Dimon Bendtsen
Abstract
We address the problem of constructing a linear parameter varying (LPV) model for a nonlinear marine cooling system with flow dependent delays. We focus on the choice of scheduling variables for the LPV model to represent important nonlinear dynamics, and to preserve the flow dependency of the transport delays in the system. To this end, we redefine one of the system inputs to obtain a scheduling parameter that describes the time-varying operating point for this input, and also make some simple, but justifiable approximations in order to keep the number of scheduling variables low. A simulation example is provided to illustrate the performance of the LPV model compared to the original nonlinear model.
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