Three phase transformation for simplified space vector control of multilevel inverters

Multilevel inverters provide numerous advantages compared to standard type inverters, most importantly a line voltage with low harmonic distortion through multiple output-voltage levels. The control of such a system with space vector modulation techniques leads to more complex algorithms for determining the correct switching behavior. This paper presents a new three phase transformation with the ability to simplify space vector based control schemes for multilevel inverters. Based on that transformation transistor switching states, redundant switching states and gate signals can easily be determined.

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