Ruccius B, Kraus T, Westermann R, Heckel T, März M, Wagner B (2019)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2019
ISBN: 978-89-5708-313-0
An
approach to estimate the submodule capacitor voltages in a Modular Multilevel
Converter (MMC) is presented and realized in a hardware test setup. One disadvantage
of the MMC topology is the high communication and measurement effort. As the
submodule voltages are being estimated, the measurement effort as well as the
communication effort between the submodules and the main controller hardware is
significantly reduced. Thereby, the reliability of the system also increases. In
the hardware test setup, it is verified that using a notch filter in the
feedback path of the energy control loop significantly decreases unwanted AC
components of the circulating currents within the MMC. Subsequently the current
stress as well as the conduction and switching losses in the semiconductors can
be minimized. Furthermore, the dynamic performance of the capacitor voltage
estimation and control scheme was analyzed via hardware tests.
APA:
Ruccius, B., Kraus, T., Westermann, R., Heckel, T., März, M., & Wagner, B. (2019). A Cascaded Control Concept for Modular Multilevel Converters with Capacitor Voltage Estimation using a Kalman Filter. In IEEE (Eds.), Proceedings of the 2019 ICPE ECCE Asia. Busan, KR.
MLA:
Ruccius, Benjamin, et al. "A Cascaded Control Concept for Modular Multilevel Converters with Capacitor Voltage Estimation using a Kalman Filter." Proceedings of the 2019 ICPE ECCE Asia, Busan Ed. IEEE, 2019.
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