The nonlinear voltage distortion effect of an extended IGBT turn-off time in sinusoidal PWM VSI applications

Salt, Daniel and Drury, David and Holliday, Derrick; (2009) The nonlinear voltage distortion effect of an extended IGBT turn-off time in sinusoidal PWM VSI applications. In: IEEE International electric machines and drives conference, 2009. IEMDC '09. Proceedings. IEEE, USA, pp. 1497-1502. ISBN 9781424442515 (https://doi.org/10.1109/IEMDC.2009.5075401)

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Abstract

A new dasiaextended turn-off timepsila compensation parameter is introduced to overcome the low-current nonlinear voltage distortion effect in IGBT inverters. The compensation technique uses datasheet parameters in conjunction with an analytical approach to model the low-current switching characteristics of an IGBT. As a result, output voltage amplitude is accurately controlled and low-order voltage harmonics are reduced resulting in reduced current distortion, reduced power loss and, in motor drive applications, reduced torque ripple. The compensation technique can be easily integrated into a conventional dasiaaverage valuepsila type compensator without the need for significant modification and without the need for experimentally intensive lookup tables.

ORCID iDs

Salt, Daniel, Drury, David and Holliday, Derrick ORCID logoORCID: https://orcid.org/0000-0002-6561-4535;
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