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Extended Operation of Cascade Multicell Converters Under Fault Condition
Open accessAbstract
Multilevel converters are an interesting alternative for high power drives, due to their good quality output signals. Despite their advantages, the large number of components required increases the fault probability. Among the multilevel topologies, the cascade multicell converter presents advantages when operating under internal fault conditions, due to its high modularity. Previous works proposed to compensate the unbalanced operation due to a fault by changing the canonical fundamental output phase shift to precalculated angles, depending on the fault condition. This solution assumes that, if the maximum output phase voltage on each leg is used, the maximum line-to-line voltage will be at a maximum as well. This paper shows how this assumption is not always valid and presents the optimum angles and modulation indexes that must be used in order to obtain the maximum balanced load voltages.
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Citations
Cited by
Leon, J. I., Vazquez, S., & Franquelo, L. G. (2017) · Proceedings of the IEEE · doi:10.1109/jproc.2017.2726583 · Cited by 481
Survey of fault-tolerance techniques for three-phase voltage source inverters
Mirafzal, B. (2014) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2014.2301712 · Cited by 440
Survey on Fault Operation on Multilevel Inverters
Lezana, P., Pou, J., Meynard, T. A., Rodriguez, J., Ceballos, S., & Richardeau, F. (2010) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2009.2032194 · Cited by 384
Self-citationA Postfault Strategy to Control the Modular Multilevel Converter Under Submodule Failure
Yang, Q., Qin, J., & Saeedifard, M. (2016) · IEEE Transactions on Power Delivery · doi:10.1109/tpwrd.2015.2449875 · Cited by 69
Metadata
- Authors
- Lezana, P., & Ortiz, G.
- Venue
- IEEE Transactions on Industrial Electronics
- Published
- 2009-07
- Volume
- 56
- Issue
- 7
- Pages
- 2697-2703
- ISSN
- 0278-0046 (ISSN-L)
- OpenAlex
- W2106895166
- Cited by
- 219
- References
- 0
- FWCI
- 6.86
- Type
- journal article
- Language
- en
- Open access
- green
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