Offset-free model predictive controller of a heat pump

This work presents an offset-free model predictive control (OF-MPC) design for energy efficient control of a heat pump. Open-loop system dynamics are examined first to determine the appropriate control structure leading to identification techniques being used to construct linear models of an experim...

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Bibliographic Details
Published in2014 American Control Conference pp. 2247 - 2252
Main Authors Wallace, Matt, Mhaskar, Prashant, House, John, Salsbury, Tim
Format Conference Proceeding
LanguageEnglish
Published American Automatic Control Council 01.06.2014
Subjects
Atmospheric modeling
Control applications
Cooling
Heat pumps
Mathematical model
Noise measurement
Predictive control for nonlinear systems
Predictive models
Simulation
Temperature measurement
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Summary:This work presents an offset-free model predictive control (OF-MPC) design for energy efficient control of a heat pump. Open-loop system dynamics are examined first to determine the appropriate control structure leading to identification techniques being used to construct linear models of an experimentally-validated heat pump model. Subsequently, a framework consisting of a model predictive controller, cascaded upon a lower level PI controller, is designed. The MPC includes an augmented model (including disturbance states) and an associated Luenberger observer to estimate the prediction disturbance (plant-model mismatch at steady state). Simulation results subject to realistic disturbances and measurement noise demonstrate that energy savings of 2.3% can be achieved with the proposed OF-MPC design compared to a traditional control approach.
ISBN:1479932728
9781479932726
ISSN:0743-1619
2378-5861
DOI:10.1109/ACC.2014.6859114