NDLI: A novel approach to current-mode control of the constant frequency power converters

Content Provider	IEEE Xplore Digital Library
Author	Jankovic, M. Ninkovic, P. Janda, Z.
Copyright Year	1996
Description	Author affiliation: Control Div., Nikola Tesla Inst., Belgrade, Serbia (Jankovic, M.)
Abstract	This paper presents new methods of current mode control for pulse width modulated (PWM) converters. Proposed approaches of control expands the band of duty-cycle ratio variations without any deteriorating influence on system stability. Furthermore, in the case of the quasi-charge control, system becomes inherently stable. Small-signal models are developed for both control circuits. The models are derived for converters operating in the continuous conduction mode. The models are accurate up to half of the switching frequency. The proposal small-signal models are used to assess system stability considerations. The proposed control circuits are suitable for all applications where the average inductor current needs to be controlled, as it is the case in the power factor correction circuits as well as in the battery charger/dischargers. The subharmonic oscillations, present in true average control scheme, are eliminated by using proper compensation network in the current loop. Model predictions are well confirmed through simulation results.
Starting Page	488
Ending Page	492
File Size	563179
Page Count	5
File Format	PDF
ISBN	0780333349
DOI	10.1109/ISIE.1996.548537
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-17
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation converters Pulse width modulation Control systems Circuit stability Power system modeling Predictive models Switching frequency Proposals Inductors Power factor correction
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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