Near-Optimal Control of a Bilinear, Solar-Assisted Heat Pump System

[+] Author and Article Information
H. Le

National Institute for Petroleum and Energy Research, Bartlesville, OK 74005

M. Zaheeruddin, V. Gourishankar, R. Rink

Department of Electrical Engineering, The University of Alberta, Edmonton, Alberta, Canada T6G 2E1

J. Sol. Energy Eng 109(4), 259-266 (Nov 01, 1987) (8 pages) doi:10.1115/1.3268216 History: Received May 01, 1985; Online November 11, 2009


A system consisting of a flat-plate solar collector, two heat storage tanks, a heat pump, and all necessary minor components is considered. For each major component a bilinear mathematical model is developed. The system control problem is divided into steady-state and dynamic cases, and the optimal steady-state solution is found. Based on this result a suboptimal dynamic control algorithm is given and is shown to give locally stable and near optimal performance. Results of a simulation study, comparing seasonal performance of the suboptimal system with that of the conventionally-controlled system are given.

Copyright © 1987 by ASME
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