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Extracting structure functions of power devices in induction motor drives

Aliyu, Attahir Murtala; Castellazzi, Alberto

Authors

Attahir Murtala Aliyu eexam29@nottingham.ac.uk

Alberto Castellazzi alberto.castellazzi@nottingham.ac.uk



Abstract

This paper proposes the extraction of structure function from power devices on-board induction motor drives. It puts forward the issues and methodology related to on-board measurement of the cooling curve and derivation of the structure function during idle times in induction motor drives for maintenance purposes. The structure function uses the thermal resistances and capacitances in the Cauer form to identify changes in the device structure. The advantage of the structure function is that it does not only reveal the value but also the location of the thermal resistance and capacitance in the heat flow path. The novelty in this work is the methodology used to achieve the measurement of the cooling curve and the derivation of the structure function despite issues related to freewheeling current due to energy stored as a result of motor inductance.

Publication Date Sep 22, 2016
Peer Reviewed Peer Reviewed
APA6 Citation Aliyu, A. M., & Castellazzi, A. (2016). Extracting structure functions of power devices in induction motor drives
Keywords Temperature measurement, Current measurement, Heating, Voltage measurement, Temperature sensors, Thermal resistance, Switches
Publisher URL http://ieeexplore.ieee.org/document/7749040/
Related Public URLs http://www.therminic2016.eu/
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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