Voltage based 2/3/4-step commutation for direct three-level matrix converter

This paper proposes a 2/3/4/-step commutation strategy for direct three-level matrix converters (DTMC) based on input phase voltage measurement. While the DTMC is investigated since the beginning of the 21st century, the differences in the commutation to the direct matrix converter (DMC) has not bee...

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Bibliographic Details
Published in2018 IEEE Applied Power Electronics Conference and Exposition (APEC) pp. 2507 - 2514
Main Authors Leubner, Martin, Remus, Nico, Schwarz, Stephan, Hofmann, Wilfried
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2018
Subjects
Commutation
Electric potential
Legged locomotion
Monte Carlo methods
Switches
Voltage measurement
Zinc
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Summary:This paper proposes a 2/3/4/-step commutation strategy for direct three-level matrix converters (DTMC) based on input phase voltage measurement. While the DTMC is investigated since the beginning of the 21st century, the differences in the commutation to the direct matrix converter (DMC) has not been investigated in detail. The added commutation paths lead to a new set of finite state machines (FSM), which force the current flow to the neutral point potential of the filter capacitor. Concentrating on the output voltage generation, the commutation from and to the neutral point potential will be focused and the known FSM for voltage based commutation will be extended. Additionally, the usability of short-term changes in the commutation target phase, will be discussed. They become interesting when the input data of the FSM changes during a multi-step commutation. The output voltage deviation caused by the multi-step commutation will be analyzed and the functionality will be proven by experimental results.
ISSN:2470-6647
DOI:10.1109/APEC.2018.8341370