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Research of Direct Torque Control Based on Forecast of Stator Reference Voltage Vector and Space Vector Pulse Width Modulation

Yongjun Zhang

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Abstract

Considering the disadvantages in flux and torque ripple of direct torque control for asynchronous motor,a new control strategy to reduce the pulse was proposed.With estimating the stator flux,the stator reference voltage vector of next sample period was calculated.The switching control signals of the inverter are generated by space vector pulse-width modulation(SVPWM) technology.Through the simulation research,the effectiveness of this control strategy is proved.

About this research paper

What this paper is about

Considering the disadvantages in flux and torque ripple of direct torque control for asynchronous motor,a new control strategy to reduce the pulse was proposed.With estimating the stator flux,the stator reference voltage vector of next sample period was calculated.The switching control signals of the inverter are generated by space vector pulse-width modulation(SVPWM) technology.Through the simulation research,the effectiveness of this control strategy is proved.

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Available abstract

Considering the disadvantages in flux and torque ripple of direct torque control for asynchronous motor,a new control strategy to reduce the pulse was proposed.With estimating the stator flux,the stator reference voltage vector of next sample period was calculated.The switching control signals of the inverter are generated by space vector pulse-width modulation(SVPWM) technology.Through the simulation research,the effectiveness of this control strategy is proved.

Key concepts: Direct torque control, Control theory (sociology), Vector control, Stator, Torque ripple, Pulse-width modulation, Torque, Voltage

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Research of Direct Torque Control Based on Forecast of Stator Reference Voltage Vector and Space Vector Pulse Width Modulation — Research Paper | ScholarLens