A new technique to reject DC-link voltage ripple for inverters operating on programmed PWM waveforms
- 1 January 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Electronics
- Vol. 7 (1) , 171-180
- https://doi.org/10.1109/63.124589
Abstract
A proposal for rejecting DC-link voltage ripple in inverters operating on programmed PWM 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 technique are in fixed and variable frequency inverters for power supplies and AC motor drives that experience voltage ripple in the DC link such as when fed from a weak AC system that is frequently unbalanced. A design procedure along with the digital implementation of the proposed technique is described. Selected results were verified experimentally on a laboratory inverter.Keywords
This publication has 7 references indexed in Scilit:
- Unbalanced PWM converter analysis and corrective measuresPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Optimal power control strategies for neutral point clamped (NPC) inverter topologyPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Programmed PWM techniques to eliminate harmonics: a critical evaluationIEEE Transactions on Industry Applications, 1990
- A control strategy of three-phase PWM inverter with fluctuating input voltagePublished by Institute of Electrical and Electronics Engineers (IEEE) ,1989
- Rectifier-Inverter Frequency Changers with Suppressed DC Link ComponentsIEEE Transactions on Industry Applications, 1986
- Adaptive Harmonic Control in PWM Inverters with Fluctuating Input VoltageIEEE Transactions on Industrial Electronics, 1986
- A New Control of PWM Inverter Waveform for Minimum Loss Operation of an Induction Motor DriveIEEE Transactions on Industry Applications, 1985