Disaggregation of home energy display data using probabilistic approach

Home energy displays are emerging home energy management devices. Their energy saving potential is limited, because most display whole-home electricity consumption data. We propose a new approach to disaggregation electricity consumption by individual appliances and/or end uses that would enhance th...

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Bibliographic Details
Published in:IEEE transactions on consumer electronics 2012-02, Vol.58 (1), p.23-31
Main Author: Zeifman, M.
Format: Article
Language:English
Subjects:
Accuracy
Data models
Home appliances
Markov processes
Probabilistic logic
Surges
Viterbi algorithm
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Summary:Home energy displays are emerging home energy management devices. Their energy saving potential is limited, because most display whole-home electricity consumption data. We propose a new approach to disaggregation electricity consumption by individual appliances and/or end uses that would enhance the effectiveness of home energy displays. The proposed method decomposes a system of appliance models into tuplets of appliances overlapping in power draw. Each tuplet is disaggregated using a modified Viterbi algorithm. In this way, the complexity of the disaggregation algorithm is linearly proportional to the number of appliances. The superior accuracy of the method is illustrated by a simulation example and by actual household data.
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2012.6170051