CUED Publications database

A comparison of losses in small (<1 kW) drives using sine and space vector pulse width modulation schemes

Leong, CY and Grinberg, R and Makrides, G and Wu, Y and McMahon, RA (2005) A comparison of losses in small (<1 kW) drives using sine and space vector pulse width modulation schemes. Proceedings of the International Conference on Power Electronics and Drive Systems, 2. pp. 1123-1128.

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Abstract

this paper quantifies effects of using three different pulse width modulation (PWM) schemes on the losses in the inverter and induction motor of a 1 kW drive. Direct measurements of losses have been made with a calorimeter. Results show that for the inverter, discontinuous PWM excitation reduces losses by up to 15% compared to sine and symmetrical space vector PWM methods. However, at a low modulation index the greater harmonic content with discontinuous PWM increased motor losses by nearly 20%. This study demonstrates the importance of careful choice of modulation scheme to achieve high overall drive efficiency. © 2005 IEEE.

Item Type: Article
Uncontrolled Keywords: Choice of modulation scheme Drive losses Space vector pulse-width modulation
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:15
Last Modified: 30 Nov 2014 17:45
DOI: