Data Mining Applied to Identification of Harmonic Sources in Residential Consumers

This work proposes a method based on both pre processing and data mining with the objective of identify harmonic current sources in residential consumers. In addition, this methodology can also be applied to identify linear and non linear loads. It should be emphasized that the entire database was o...

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Bibliographic Details
Published in:Revista IEEE América Latina 2011-06, Vol.9 (3), p.302-310
Main Authors: Fernandes, R. A. S., da Silva, I. N., Oleskovicz, M.
Format: Article
Language:English
Subjects:
Artificial Neural Networks
Data mining
Disturbances
Dynamical systems
Electric power generation
Fluorescence
Harmonic analysis
Harmonic Components
Harmonic distortion
Harmonics
Identification of Harmonic Sources
Instruments
Laboratories
Monitoring
Neural networks
Nonlinear Loads
Preprocessing
Residential
RNA
Studies
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Summary:This work proposes a method based on both pre processing and data mining with the objective of identify harmonic current sources in residential consumers. In addition, this methodology can also be applied to identify linear and non linear loads. It should be emphasized that the entire database was obtained through laboratory essays, i.e., real data were acquired from residential loads. Thus, the residential system created in laboratory was fed by a configurable power source and in its output were placed the loads and the power quality analyzers (all measurements were stored in a microcomputer). So, the data were submitted to pre-processing, which was based on attribute selection techniques in order to minimize the complexity in identifying the loads. A newer database was generated maintaining only the attributes selected, thus, Artificial Neural Networks were trained to realized the identification of loads. In order to validate the methodology proposed, the loads were fed both under ideal conditions (without harmonics), but also by harmonic voltages within limits pre-established. These limits are in accordance with IEEE Std. 519-1992 and PRODIST (procedures to delivery energy employed by Brazilian's utilities). The results obtained seek to validate the methodology proposed and furnish a method that can serve as alternative to conventional methods.
ISSN:1548-0992
1548-0992
DOI:10.1109/TLA.2011.5893776