NDLI: PWM power converter voltage quality bounds and their applicability to non-PWM control schemes

Content Provider	IEEE Xplore Digital Library
Author	Ruderman, A. Reznikov, B.
Copyright Year	2010
Description	Author affiliation: Elmo Motion Control Ltd., Russia (Ruderman, A.) \|\| General Satellite Corporation, Russia (Reznikov, B.)
Abstract	The paper presents simple closed-form analytical expressions for PWM power converter ripple voltage Normalized Mean Square lower and upper bounds. These estimates obtained in time domain are asymptotic in the sense that switching-to-fundamental frequencies ratio is supposed infinitely large. Ripple voltage Normalized Mean Square in the first approximation represents normalized additional eddy current iron core loss in electric motor, transformer, or coupling inductor caused by converter switching that is a dominant switching loss mechanism. Non-PWM voltage control schemes like sliding mode, hysteresis, direct torque and power control, and predictive control may deliver better tracking, and disturbance rejection performance at the expense of compromising voltage quality thus increasing converter switching caused iron core loss. Comparison with PWM voltage quality asymptotic lower and upper bounds may be useful for making a fair assessment of different non-PWM strategies from additional switching caused iron core loss perspective.
Starting Page	618
Ending Page	624
File Size	366694
Page Count	7
File Format	PDF
ISBN	9781424470198
ISSN	18420133
e-ISBN	9781424470204
DOI	10.1109/OPTIM.2010.5510569
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-20
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switching converters Pulse width modulation converters Upper bound Core loss Pulse width modulation Iron Frequency estimation Voltage control Eddy currents Electric motors
Content Type	Text
Resource Type	Article

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