A Kalman-Filter Spectral Envelope Preprocessor

A Kalman-Filter Spectral Envelope Preprocessor

This paper presents a Kalman-filter approach for computing spectral envelopes of current waveforms for nonintrusive load monitoring on the electric utility. Spectral envelopes represent time-varying frequency content and phase of the current relative to the voltage. Thus, the techniques presented in...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement Vol. 56; no. 5; pp. 2010 - 2017
Main Authors: Shaw, S.R., Laughman, C.R.
Format: Journal Article
Language:English
Published: New York IEEE 01-10-2007
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Computation
Digital signal processing
Electric potential
Envelopes
Frequency estimation
Frequency synchronization
Instrumentation
Load monitoring
Monitoring
Power harmonic filters
Power quality
Power system analysis computing
Power system harmonics
Power system transients
Spectra
synchronous detection
Voltage
Waveforms
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Description
Summary:This paper presents a Kalman-filter approach for computing spectral envelopes of current waveforms for nonintrusive load monitoring on the electric utility. Spectral envelopes represent time-varying frequency content and phase of the current relative to the voltage. Thus, the techniques presented in this paper may be applicable to a variety of lock-in measurement and signal processing techniques. The lock-in and computational performance of the proposed method favorably compares to previous efforts. The performance is demonstrated with data from the field.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2007.904475