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Hybrid multilevel power conversion system: a competitive solution for high-power applications
Abstract
Trends in power semiconductor technology indicate a tradeoff in the selection of power devices in terms of switching frequency and voltage-sustaining capability. New power converter topologies permit modular realization of multilevel inverters using a hybrid approach involving integrated gate commutated thyristors (IGCTs) and insulated gate bipolar transistors (IGBTs) operating in synergism. This paper investigates a hybrid multilevel power conversion system typically suitable for high-performance high-power applications. This system, designed for a 4.16 kV/spl ges/100 hp load is comprised of a hybrid seven-level inverter, a diode bridge rectifier, and an IGBT rectifier per phase. The IGBT rectifier is used on the utility side as a real power flow regulator to the low-voltage converter and as a harmonic compensator for the high-voltage converter. The hybrid seven-level inverter on the load side consists of a high-voltage slow-switching IGCT inverter and a low-voltage fast-switching IGBT inverter. By employing different devices under different operating conditions, it is shown that one can optimize the power conversion capability of the entire system. A detailed analysis of a novel hybrid modulation technique for the inverter, which incorporates stepped synthesis in conjunction with variable pulsewidth of the consecutive steps is included. In addition, performance of a multilevel current-regulated delta modulator as applied to the single-phase full-bridge IGBT rectifier is discussed. Detailed computer simulations accompanied with experimental verification are presented in the paper.
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Citations
Cited by
Yilmaz, M., & Krein, P. T. (2013) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2012.2212917 · Cited by 3,118
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
Optimized space vector switching sequences for multilevel inverters
McGrath, B. P., Holmes, D. G., & Lipo, T. (2003) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2003.818827 · Cited by 538
Self-citationBana, P. R., Panda, K. P., Naayagi, R. T., Siano, P., & Panda, G. (2019) · IEEE Access · doi:10.1109/access.2019.2913447 · Cited by 361
Metadata
- Authors
- Manjrekar, M. D., Steimer, P. K., & Lipo, T. A.
- Venue
- IEEE Transactions on Industry Applications
- Published
- 2000
- Volume
- 36
- Issue
- 3
- Pages
- 834-841
- ISSN
- 0093-9994 (ISSN-L)
- OpenAlex
- W2101494224
- Cited by
- 739
- References
- 0
- FWCI
- 12.56
- Type
- journal article
- Language
- en
- Open access
- closed
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- Manjrekar, M. D., Steimer, P. K., & Lipo, T. A. (2000). Hybrid multilevel power conversion system: a competitive solution for high-power applications. IEEE Transactions on Industry Applications. https://doi.org/10.1109/28.845059
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