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Space vector modulation (SVM) is commonly in digital implementations of three phase PWM modulators. This paper proposes a general approach to determining sectors and durations associated with SVM in multi-level inverters. The algorithm is exact, fast, and applicable to any number of levels. It is based on a vector classification technique, which allows determination of the switching sequences and the calculation the switching instants in m-level inverters. The proposed technique reduces software complexity, decreases the computation time, and increases the accuracy of the positioning of the switching instants, when compared with the conventional implementation of the SVM in multi-level converters. Results are given for a 3-level inverter.
Bakhshai et al. (Wed,) studied this question.