Nonlinear Control, Disturbance Decoupling and Load Estimation in HVAC Systems
| Authors: | Yazdanpanah Mohammad Javad, University of Tehran, Iran (Islamic Republic of)
Kazerooni Elham Semsar, Concordia University, Canada
Lucas Caro, University of Tehran, Iran (Islamic Republic of) |
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| Topic: | 2.1 Control Design |
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| Session: | Control Design I |
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| Keywords: | Feedback Linearization, Decoupling, Observer, nonlinear systems, tracking |
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Abstract
A new control methodology is introduced for nonlinear, MIMO Heating, Ventilating and Air Conditioning (HVAC) Systems. A feedback of states and disturbances is used for disturbance decoupling and model linearization purposes. The Back-stepping controller is applied to the system’s linearized model, then. It is shown that in this way, heat and moisture loads can be compensated completely if considered as measurable disturbances. For non-measurable disturbances a stable observer is introduced to estimate them. The system has good and fast tracking, offset-free and smooth response with high disturbance decoupling and optimal energy consuming properties in the presence of a wide range of time-varying loads
