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A General Space Vector PWM Algorithm for Multilevel Inverters, Including Operation in Overmodulation Range

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2 Author(s)
Amit Kumar Gupta ; Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore ; Ashwin M. Khambadkone

This paper proposes a simple space vector pulsewidth modulation algorithm for a multilevel inverter for operation in the overmodulation range. The proposed scheme easily determines the location of the reference vector and calculates on-times. It uses a simple mapping to generate gating signals for the inverter. A five-level cascaded inverter is used to explain the scheme. The scheme can be easily extended to a n-level inverter. It is applicable to neutral point clamped topology as well. Experimental results are provided for five-level and seven-level cascaded inverters

Published in:

IEEE Transactions on Power Electronics  (Volume:22 ,  Issue: 2 )