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A new control strategy to improve the performance of a PWM AC to DC converter under unbalanced operating conditions
Abstract
Abnormal harmonics of significant magnitude are generated at the output and input terminals of a PWM (pulse-width-modulated) AC-to-DC power converter under unbalanced operating conditions. A new control strategy is presented to selectively cancel the generated lower-order abnormal harmonics at the output and input terminals and thereby to preserve the high-performance features of a PWM AC-to-DC power converter. The proposed technique essentially involves computing the sequence components of the unbalanced input supply and suitably counter-unbalances the PWM gating signals of the power converter switches to cancel the generated abnormal harmonics. The technique is essentially a feedforward approach and is suitable for higher-power GTO (gate turn-off thyristor) type PWM AC-to-DC power converters. A procedure for implementing this technique in real time is discussed. Selected results are verified experimentally on a prototype PWM AC-to-DC power converter.>
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Cited by
A Review of Three-Phase Improved Power Quality AC–DC Converters
Singh, B., Singh, B. N., Chandra, A., Al-Haddad, K., Pandey, A., & Kothari, D. P. (2004) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2004.825341 · Cited by 1,728
Safayatullah, M., Elrais, M. T., Ghosh, S., Rezaii, R., & Batarseh, I. (2022) · IEEE Access · doi:10.1109/access.2022.3166935 · Cited by 615
Assessment of voltage unbalance
von Jouanne, A., & Banerjee, B. (2001) · IEEE Transactions on Power Delivery · doi:10.1109/61.956770 · Cited by 600
Suh, Y., & Lipo, T. A. (2006) · IEEE Transactions on Industry Applications · doi:10.1109/tia.2006.873673 · Cited by 264
Metadata
- Authors
- Enjeti, P. N., & Choudhury, S. A.
- Venue
- IEEE Transactions on Power Electronics
- Published
- 1993-10
- Volume
- 8
- Issue
- 4
- Pages
- 493-500
- ISSN
- 0885-8993 (ISSN-L)
- 1941-0107
- OpenAlex
- W2112532540
- Cited by
- 161
- References
- 0
- FWCI
- 1.48
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: A new control strategy to improve the performance of a PWM AC to DC converter under unbalanced operating conditions. https://app.cochat.ai/papers/10.1109/63.261020
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- Enjeti, P. N., & Choudhury, S. A. (1993). A new control strategy to improve the performance of a PWM AC to DC converter under unbalanced operating conditions. IEEE Transactions on Power Electronics. https://doi.org/10.1109/63.261020
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