A4 Conference proceedings

Experimental Investigation of the Losses and Efficiency a 75 kW Induction Motor Drive System

Open Access publication

Publication Details
Authors: Aarniovuori Lassi, Kärkkäinen Hannu, Niemelä Markku, Cai Kewei, Pyrhönen Juha, Cao Wenping
Publication year: 2019
Language: English
Related Journal or Series Information: Proceedings of the Annual Conference of the IEEE Industrial Electronics Society
Title of parent publication: 45th Annual Conference of the IEEE Industrial Electronics Society IECON 2019
Journal acronym: IECON
Start page: 1052
End page: 1058
Number of pages: 7
ISBN: 978-1-7281-4879-3
eISBN: 978-1-7281-4878-6
ISSN: 1553-572X
JUFO-Level of this publication: 1
Open Access: Open Access publication
Location of the parallel saved publication: http://urn.fi/URN:NBN:fi-fe202001273591

The frequency converter driven IM can be used as a reference for the efficiency level of a drive system. In here, thelosses and efficiency of a 75 kW IE3 -rated modern squirrel-cage induction motor are investigated experimentally. First, the result of IEC loss segregation with sinusoidal supply is used to create a reference point. Secondly, five different commercially available voltage source converters are used to drive the same motor in 30 measurement points up to the rated speed and torque. The losses and efficiencies are analyzed with torque values of 10%, 25%, 50%, 75% and 100% of the rated torque of the motor and supply frequency values of 10%, 25%, 50%, 75%, 90% and 100% of the rated motor frequency. The results are presented as frequency – torque maps and the loss values are given as Table values. Threeof these converters show very similar performance from the energy efficiency point of view. The input-output method is used to determine the losses of the motor and converter.

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Last updated on 2020-20-03 at 10:03