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Learning decision rules for energy efficient building control

Author(s):

A. Domahidi, F. Ullmann, M. Morari, C. Jones
Conference/Journal:

Journal of Process Control, vol. 24, pp. 763-772
Abstract:

While rule based control (RBC) is current practice in most building automation systems that issue discrete control signals, recent simulation studies suggest that advanced, optimization based control methods such as hybrid model predictive control (HMPC) can potentially outperform RBC in terms of energy efficiency and occupancy comfort. However, HMPC requires a more complex IT infrastructure and numerical optimization in the loop, which makes commissioning, operation of the building, and error handling significantly more involved than in the rule based setting. In this paper, we suggest an automated RBC synthesis procedure for binary decisions that extracts prevalent information from simulation data with HMPC controllers. The result is a set of simple decision rules that preserves much of the control perfor-mance of HMPC. The methods are based on standard machine learning algorithms, in particular support vector machines (SVMs) and adaptive boosting (AdaBoost). We consider also the ranking and selection of measurements which are used for a decision and show that this feature selection is useful in both complexity reduction and reduction of investment costs by pruning unnecessary sensors. The suggested methods are evaluated in simulation for six different case studies and shown to maintain the performance of HMPC despite a tremendous reduction in complexity.

Year:

2014
Type of Publication:

(01)Article
Supervisor:



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% Autogenerated BibTeX entry
@Article { DomEtal:2014:IFA_4795,
    author={A. Domahidi and F. Ullmann and M. Morari and C. Jones},
    title={{Learning decision rules for energy efficient building
	  control}},
    journal={Journal of Process Control},
    year={2014},
    volume={24},
    number={},
    pages={763--772},
    month=jan,
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=4795}
}
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