CUED Publications database

A comparison of power losses for small (< 1 kW) induction motor drives adopting squarewave and sinusoidal PWM excitation

Leong, CY and Van Der Duijn Schouten, NP and Malliband, PD and McMahon, RA (2004) A comparison of power losses for small (< 1 kW) induction motor drives adopting squarewave and sinusoidal PWM excitation. IEE Conference Publication, 1. pp. 286-290. ISSN 0537-9989

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Abstract

In this paper the influence of the form of motor excitation on the performance of a small (< 1 kW) induction motor drive is studied. Two forms of excitation, namely sine waves generated by pulse width modulation and simple square wave are explored. Sine wave excitation gives lower motor losses but increases inverter losses. Conversely, square wave excitation increases motor losses but decreases inverter losses. Losses have been measured directly by calorimetric means or, in the case of the inverter, predicted by a Pspice model that has been verified by calorimetric methods. The work shows that overall, the use of square wave excitation leads to a more efficient drive. © 2004 The Institution of Electrical Engineers.

Item Type: Article
Uncontrolled Keywords: Calorimetric measurement Efficiency Motor excitation
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:15
Last Modified: 27 Nov 2014 19:22
DOI: