A Mahalanobis Distance Measurement Method to Analyze Current Waveform for Determining the Motor’s Quality Types

Yun Chi Yeh; Tsung Fu Chien; Cheng Yuan Chang; Tsui Shiun Chu

doi:10.4028/www.scientific.net/AMM.870.317

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 870A Mahalanobis Distance Measurement Method to...

A Mahalanobis Distance Measurement Method to Analyze Current Waveform for Determining the Motor’s Quality Types

Abstract:

This study proposes a Mahalanobis Distance Measurement (MDM) method to analyze current waveform for determining the motor’s quality types. The MDM method consists of three major stages: (i) the preprocessing stage which is for enlarging motor current waveforms’ amplitude and eliminating noises, and includes signal amplitude amplifier, filter circuit (eliminating noises), and analog-to-digital converter (ADC) parts, (ii) the qualitative features stage which is for qualitative feature selection on motor current waveforms, and (iii) the classification stage which is for determining motor quality types using the MDM method. It can recognize defective motors and their defective types in less than 0.5 second. In the experiment, the total classification accuracy (TCA) was approximately 99.03% in average. The proposed method has the advantages of good detection results, no complex mathematic computations, hi-speed, and hi-reliability.

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Periodical:

Applied Mechanics and Materials (Volume 870)

Pages:

317-322

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.870.317

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Online since:

September 2017

Authors:

Yun Chi Yeh*, Tsung Fu Chien, Cheng Yuan Chang, Tsui Shiun Chu

Keywords:

Analog-to-Digital Converter (ADC), Mahalanobis Distance, Motor

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* - Corresponding Author

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