Abstract
Residential buildings with the ability to monitor and control their net-load (sum of load and generation) can provide valuable flexibility to power grid operators. We present a novel multiclass nonintrusive load monitoring (NILM) approach that enables effective net-load monitoring capabilities at high-frequency with minimal additional equipment and cost. The proposed machine learning based solution provides accurate multiclass state predictions while operating at a faster timescale (able to provide a prediction for each 60- Hz ac cycle used in US power grid) without relying on event-detection techniques. We also introduce an innovative hybrid classification-regression method that allows for the prediction of not only load on/off states but also individual load operating power levels. A test bed with eight residential appliances is used for validating the NILM approach. Results show that the overall method has high accuracy, good scaling and generalization properties.
Original language | English (US) |
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Title of host publication | 2023 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2023 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781665453554 |
DOIs | |
State | Published - 2023 |
Event | 2023 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2023 - Washington, United States Duration: Jan 16 2023 → Jan 19 2023 |
Publication series
Name | 2023 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2023 |
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Conference
Conference | 2023 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2023 |
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Country/Territory | United States |
City | Washington |
Period | 1/16/23 → 1/19/23 |
Bibliographical note
Funding Information:1National Renewable Energy Laboratory,Golden, CO, USA; 2Enphase, Austin, TX, USA; 3University of Minnesota, Minneapolis, MN, USA The authors acknowledge the Advanced Research Projects Agency-Energy (ARPA-E) for supporting this research through the project titled “Rapidly Viable Sustained Grid” via grant no. DE-AR0001016. This work was authored in part by the National Renewable Energy Laboratory, managed and operated by Alliance for Sustainable Energy, LLC, for the U.S. Department of Energy (DOE) under Contract No. DE-AC36-08GO28308. The views expressed in the article do not necessarily represent the views of the DOE or the U.S. Government. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes
Publisher Copyright:
© 2023 IEEE.
Keywords
- Nonintrusive load monitoring (NILM)
- feature extraction
- grid-interactive
- multiclass classification
- power prediction
- regression
- smart buildings
- smart grid