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Direct Torque Control of a cascaded three level inverter driven induction motor
Published in Institute of Electrical and Electronics Engineers Inc.
2014
Abstract
Direct Torque Control (DTC) of induction motor is a scalar control technique that gives excellent torque dynamic performance. Deriving the advantages of multilevel inverter, a modified DTC is proposed in this paper for the induction motor, driven by a cascaded three-level inverter. The proposed DTC gives superior torque performance compared to the use of Field Oriented Control (FOC) under transient conditions. The ruggedness of the proposed control scheme using the cascaded inverter is tested for speed change, speed reversal and also torque change commands. The envisaged DTC is simulated using Matlab/Simulink and experimentally validated using a laboratory prototype. © 2014 IEEE.
Concepts (16)
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    Ac motors
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    Electric drives
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    Electric inverters
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    Power electronics
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    Torque
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    Torque control
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    VECTOR CONTROL (ELECTRIC MACHINERY)
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    Direct torque control
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    Dynamic performance
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    FIELD-ORIENTED CONTROL
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    Induction motor drive
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    Multilevel inverter
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    SCALAR CONTROL TECHNIQUE
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    Three-level inverters
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    Transient conditions
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    Induction motors