NDLI: A new technique to reject DC-link voltage ripple for inverters operating on programmed PWM waveforms

Content Provider	IEEE Xplore Digital Library
Author	Enjeti, P. Shireen, W.
Copyright Year	1990
Description	Author affiliation: Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA (Enjeti, P.; Shireen, W.)
Abstract	A new proposal to reject DC-link voltage ripple in inverters operating on programmed PWM (pulse width modulation) waveforms is examined in detail. It is demonstrated how continuous elimination of harmonics is achieved at the inverter output while simultaneously rejecting the DC-link voltage ripple. Thus, with the proposed technique, high-quality voltage is guaranteed at the inverter output terminals even with a substantial low-frequency voltage ripple on the DC-link. A thorough modeling of this technique, along with the tradeoffs involved in acquiring the immunity to DC-link ripple, is illustrated in detail. Potential applications of the proposed technique are in fixed and variable frequency inverters for power supplies and AC motor drives which experience voltage ripple in the DC-link, such as when fed from a weak AC-system which is frequently unbalanced. A design procedure and the digital implementation of the proposed technique are described. Selected results are verified experimentally on a laboratory inverter.
Starting Page	705
Ending Page	713
File Size	563678
Page Count	9
File Format	PDF
DOI	10.1109/PESC.1990.131258
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-01-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Voltage Power harmonic filters Frequency Pulse width modulation Rectifiers Laboratories Proposals Pulsed power supplies Power electronics
Content Type	Text
Resource Type	Article

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