Supervised energy disaggregation using dictionary - based modelling of appliance states

C. Mavrokefalidis, D. Ampeliotis, E. Vlachos, K. Berberidis, E. Varvarigos

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

3 Citations (Scopus)

Abstract

In this paper, a supervised energy disaggregation method is proposed. The appliances that are monitored, are modelled by multi-state finite state machines. Each state of an appliance is described by exactly one vector of power consumptions from a carefully designed set of such vectors (called atoms), that comprise a dictionary. The latter is constructed during a training phase, where it is assumed that individual power consumption signals are available. A clustering algorithm is applied on overlapping patches extracted from the training signals to select a fixed number of representatives, i.e., the atoms of the dictionary. Moreover, in the training phase, an appropriate state transition probabilities matrix is constructed. During the operation phase, where the actual disaggregation task is performed, a trellis, with a reduced number of transitions, is used for the acquisition of the disaggregated power consumption signals per appliance. Numerical results, using the REDD dataset, are provided, in order to demonstrate the effectiveness of the proposed method.

Original languageEnglish
Title of host publication2016 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe 2016)
EditorsAndrej Gubina
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages608-613
Number of pages6
ISBN (Electronic)9781509033584, 9781509033577
ISBN (Print)9781509033591
DOIs
Publication statusPublished - 2016
Externally publishedYes
EventIEEE/PES Innovative Smart Grid Technologies Europe 2016 - Ljubljana, Slovenia
Duration: 9 Oct 201612 Oct 2016
http://sites.ieee.org/isgt-europe-2016/

Conference

ConferenceIEEE/PES Innovative Smart Grid Technologies Europe 2016
Abbreviated titleISGT EUROPE 2016
CountrySlovenia
CityLjubljana
Period9/10/1612/10/16
Internet address

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