Improvement of low-speed operation performance of DTC for three-level inverter-fed induction motors

Abstract

A direct torque control algorithm for three-level inverter-fed induction motors is presented. Basic voltage selection methods similar to two-level inverter provoke some problems such as stator-flux drooping phenomenon and undesirable torque control deterioration appeared, especially at low-speed operation. To overcome these problems, an algorithm with the… (More)
DOI: 10.1109/41.954565

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