NDLI: A Diagnostic Technique for Multilevel Inverters Based on a Genetic-Algorithm to Select a Principal Component Neural Network

Content Provider	IEEE Xplore Digital Library
Author	Khomfoi, Surin Tolbert, Leon M.
Copyright Year	2007
Description	Author affiliation: The University of Tennessee, Electrical and Computer Engineering, 414 Ferris Hall, Knoxville, TN 37996-2100, USA (Khomfoi, Surin; Tolbert, Leon M.)
Abstract	A genetic-algorithm-based selective principal component neural network method for fault diagnosis system in a multilevel inverter is proposed in this paper. Multilayer perceptron (MLP) networks are used to identify the type and location of occurring faults from inverter output voltage measurement. Principal component analysis (PCA) is utilized to reduce the neural network input size. A lower dimensional input space will also usually reduce the time necessary to train a neural network, and the reduced noise may improve the mapping performance. The genetic algorithm is also applied to select the valuable principal components. The neural network design process including principal component analysis and the use of genetic algorithm is clearly described. The comparison among MLP neural network (NN), principal component neural network (PC-NN), and genetic algorithm based selective principal component neural network (PC-GA-NN) are performed. Proposed networks are evaluated with a simulation test set and an experimental test set. The PC-NN has improved overall classification performance from NN by about 5% points, whereas PC-GA-NN has better overall classification performance from NN by about 7.5% points. The overall classification performance of the proposed networks is more than 90%.
Starting Page	1497
Ending Page	1503
File Size	3305529
Page Count	7
File Format	PDF
ISBN	1424407133
ISSN	10482334
DOI	10.1109/APEX.2007.357715
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-02-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Neural networks Principal component analysis Genetic algorithms Fault diagnosis Testing Multilayer perceptrons Voltage measurement Noise reduction Process design principal component analysis genetic algorithm multilevel inverter neural network
Content Type	Text
Resource Type	Article

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