Power-Spectrum-Based Wavelet Transform for Nonintrusive Demand Monitoring and Load Identification
- 24 September 2013
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. 50 (3), 2081-2089
- https://doi.org/10.1109/tia.2013.2283318
Abstract
Though the wavelet transform coefficients (WTCs) contain plenty of information needed for turn-on/off transient signal identification of load events, adopting the WTCs directly requires longer computation time and larger memory requirements for the nonintrusive load monitoring identification process. To effectively reduce the number of WTCs representing load turn-on/off transient signals without degrading performance, a power spectrum of the WTCs in different scales calculated by Parseval's theorem is proposed and presented in this paper. The back-propagation classification system is then used for artificial neural network construction and load identification. The high success rates of load event recognition from both experiments and simulations have proved that the proposed algorithm is applicable in multiple load operations of nonintrusive demand monitoring applications.Keywords
Funding Information
- National Science Council (NSC 102-2221-E-228-002)
This publication has 21 references indexed in Scilit:
- Nonintrusive, Self-Organizing, and Probabilistic Classification and Identification of Plugged-In Electric LoadsIEEE Transactions on Smart Grid, 2013
- Front-End Electronic Circuit Topology Analysis for Model-Driven Classification and Monitoring of Appliance Loads in Smart BuildingsIEEE Transactions on Smart Grid, 2012
- Particle Swarm Optimization based non-intrusive demand monitoring and load identification in smart metersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2012
- A New Measurement Method for Power Signatures of Nonintrusive Demand Monitoring and Load IdentificationIEEE Transactions on Industry Applications, 2011
- ElectriSensePublished by Association for Computing Machinery (ACM) ,2010
- Load Identification in Neural Networks for a Non-intrusive Monitoring of Industrial Electrical LoadsLecture Notes in Computer Science, 2008
- A Novel Method to Construct Taxonomy Electrical Appliances Based on Load SignaturesofIEEE Transactions on Consumer Electronics, 2007
- Neural-Network-Based Signature Recognition for Harmonic Source IdentificationIEEE Transactions on Power Delivery, 2005
- Estimation of Variable-Speed-Drive Power Consumption From Harmonic ContentIEEE Transactions on Energy Conversion, 2005
- Wavelet-Based Neural Network for Power Disturbance Recognition and ClassificationIEEE Transactions on Power Delivery, 2004