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Steady-State Analysis of Interaction Between Harmonic Components of Arm and Line Quantities of Modular Multilevel Converters
Abstract
The fundamental frequency component in the arm currents of a modular multilevel converter is a necessity for the operation of the converter, as is the connection and bypassing of the submodules. Inevitably, this will cause alternating components in the capacitor voltages. This paper investigates how the arm currents and capacitor voltages interact when the submodules are connected and bypassed in a sinusoidal manner. Equations that describe the circulating current that is caused by the variations in the total inserted voltage are derived. Resonant frequencies are identified and the resonant behaviour is verified by experimental results. It is also found that the effective values of the arm resistance and submodule capacitances can be extracted from the measurements by least square fitting of the analytical expressions to the measured values. Finally, the analytical expression for the arm currents is verified by experimental results.
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Citations
Cited by
Gnanarathna, U. N., Gole, A. M., & Jayasinghe, R. P. (2011) · IEEE Transactions on Power Delivery · doi:10.1109/tpwrd.2010.2060737 · Cited by 739
Dekka, A., Wu, B., Fuentes, R. L., Perez, M., & Zargari, N. R. (2017) · IEEE Journal of Emerging and Selected Topics in Power Electronics · doi:10.1109/jestpe.2017.2742938 · Cited by 576
A Steady-State Analysis Method for a Modular Multilevel Converter
Song, Q., Liu, W., Li, X., Rao, H., Xu, S., & Li, L. (2013) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2012.2227818 · Cited by 503
Design and Operation of a Hybrid Modular Multilevel Converter
Zeng, R., Xu, L., Yao, L., & Williams, B. W. (2015) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2014.2320822 · Cited by 455
On Energy Storage Requirements in Modular Multilevel Converters
Ilves, K., Norrga, S., Harnefors, L., & Nee, H.-P. (2014) · IEEE Transactions on Power Electronics · doi:10.1109/tpel.2013.2254129 · Cited by 353
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Metadata
- Authors
- Ilves, K., Antonopoulos, A., Norrga, S., & Nee, H.-P.
- Venue
- IEEE Transactions on Power Electronics
- Published
- 2012-01
- Volume
- 27
- Issue
- 1
- Pages
- 57-68
- ISSN
- 0885-8993 (ISSN-L)
- 1941-0107
- OpenAlex
- W1992456171
- Cited by
- 578
- References
- 0
- FWCI
- 25.18
- Type
- journal article
- Language
- en
- Open access
- closed
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- Ilves, K., Antonopoulos, A., Norrga, S., & Nee, H.-P. (2012). Steady-State Analysis of Interaction Between Harmonic Components of Arm and Line Quantities of Modular Multilevel Converters. IEEE Transactions on Power Electronics. https://doi.org/10.1109/tpel.2011.2159809
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