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2009•Journal of Taiyuan University of TechnologyRequires access

Direct Torque Control of Asynchronism Motor Based on Space Vector Pulse Width Modulation

Chen Chen

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Abstract

To reduce the low speed torque ripple of induction motor and keep constant switch frequency,this paper proposed a new control strategy on the basis of direct torque control(DTC),which uses Space Vector Pulse Width Modulation instead of switch table.The experiment and simulation results show that it can reduce the torque ripple,and improve the waveform of stator flux and current.

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What this paper is about

To reduce the low speed torque ripple of induction motor and keep constant switch frequency,this paper proposed a new control strategy on the basis of direct torque control(DTC),which uses Space Vector Pulse Width Modulation instead of switch table.The experiment and simulation results show that it can reduce the torque ripple,and improve the waveform of stator flux and current.

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Available abstract

To reduce the low speed torque ripple of induction motor and keep constant switch frequency,this paper proposed a new control strategy on the basis of direct torque control(DTC),which uses Space Vector Pulse Width Modulation instead of switch table.The experiment and simulation results show that it can reduce the torque ripple,and improve the waveform of stator flux and current.

Key concepts: Direct torque control, Torque ripple, Control theory (sociology), Pulse-width modulation, Torque, Vector control, Induction motor, Waveform

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