Journal article

Development of a Test Rig to Automate Efficiency Testing of Converter-Fed Induction Motors

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Publication Details

Author list: Mushenya J, Khan M, Barendse P

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Publication year: 2019

Journal: IEEE Transactions on Industry Applications

Volume number: 55

Issue number: 6

Start page: 5916

End page: 5924

Total number of pages: 9

ISSN: 0093-9994


The increasing use of induction motors (IMs) with variable frequency drives for industrial process control and automation has necessitated the need to evaluate their energy efficiency in the presence of voltage and current harmonics. As the determination of IM efficiency is becoming mandatory in many countries, there is a need to develop a testing approach that eliminates inaccuracies due to the operator. This paper presents an
automated efficiency testing procedure developed to mitigate the adverse effect of varying technical skill and competence levels of testing personnel on efficiency test results. This is a particularly useful development considering the recently proposed IEC/TS 60034-2-3 methodology which specifies identical tests between sinusoidal supply and converter operation. A comparison of several manual and automated efficiency tests on a 55-kW IM highlighted improvements in repeatability, correlation, and temperature variation due to the latter. In addition, the advanced data acquisition and computation capability of the measurement device used in the
developed test rig provides an excellent platform to investigate the dynamic operation of IM drives.


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Last updated on 2020-26-02 at 08:09