Control concept for a Modular Multilevel Converter and Estimation of Capacitor Voltages
Ruccius B, Preller B, März M, Wagner B (2017)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2017
Event location: Puerto Varas
ISBN: 978-1-5090-6425-0
DOI: 10.1109/SPEC.2017.8333590
Abstract
An advanced control concept for a Modular Multilevel Converter (MMC) is presented in this paper. By using a Notch Filter and a Kalman Filter it is possible to reduce unwanted AC components in the circulating currents in the MMC significantly. Subsequently the current stress and the conduction and switching losses in the semiconductors can be minimized.
In the second part of this paper, approaches to
estimate the capacitor voltages are presented. The observability of the
estimators is proven theoretically and in simulations. A disadvantage of the
MMC topology is the demand of a complex and expensive communication system. As
the submodule voltages are estimated, the communication effort between the
submodules and the main controller hardware is significantly reduced.
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How to cite
APA:
Ruccius, B., Preller, B., März, M., & Wagner, B. (2017). Control concept for a Modular Multilevel Converter and Estimation of Capacitor Voltages. In IEEE (Eds.), Proceedings of the 2017 IEEE Southern Power Electronics Conference (SPEC). Puerto Varas, CL.
MLA:
Ruccius, Benjamin, et al. "Control concept for a Modular Multilevel Converter and Estimation of Capacitor Voltages." Proceedings of the 2017 IEEE Southern Power Electronics Conference (SPEC), Puerto Varas Ed. IEEE, 2017.
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