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Simulation and Study on Zero Voltage Vector in Permanent Magnet Synchronous Motor Based on Direct Torque Control

Yang Jianfei

Open publisher page 1 citations

Abstract

In previous study of permanent magnet synchronous motor direct torque control(PMSM DTC),considered to keep the torque stable,zero voltage vector was introduced into the torque controller.The influence of zero voltage vector on flux and torque ripple in PMSM DTC was analyzed detailedly in this paper.And it pointed out that,when the motor run with a high speed,zero voltage vector actually reduced the torque.The higher the rotor speed was,the more obvious the effect of reducing the torque was.The simulation result verified the validity of the theory analysis.It is a significant guide for understanding correctly the function of zero voltage vector in PMSM DTC and optimizing the design of zero voltage vector working zone in the future.

About this research paper

What this paper is about

In previous study of permanent magnet synchronous motor direct torque control(PMSM DTC),considered to keep the torque stable,zero voltage vector was introduced into the torque controller.The influence of zero voltage vector on flux and torque ripple in PMSM DTC was analyzed detailedly in this paper.And it pointed out that,when the motor run with a high speed,zero voltage vector actually reduced the torque.The higher the rotor speed was,the more obvious the effect of reducing the torque was.The simulation result verified the validity of the theory analysis.It is a significant guide for understanding correctly the function of zero voltage vector in PMSM DTC and optimizing the design of zero voltage vector working zone in the future.

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Available abstract

In previous study of permanent magnet synchronous motor direct torque control(PMSM DTC),considered to keep the torque stable,zero voltage vector was introduced into the torque controller.The influence of zero voltage vector on flux and torque ripple in PMSM DTC was analyzed detailedly in this paper.And it pointed out that,when the motor run with a high speed,zero voltage vector actually reduced the torque.The higher the rotor speed was,the more obvious the effect of reducing the torque was.The simulation result verified the validity of the theory analysis.It is a significant guide for understanding correctly the function of zero voltage vector in PMSM DTC and optimizing the design of zero voltage vector working zone in the future.

Key concepts: Direct torque control, Control theory (sociology), Vector control, Torque ripple, Torque, Stall torque, Torque motor, Rotor (electric)

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Simulation and Study on Zero Voltage Vector in Permanent Magnet Synchronous Motor Based on Direct Torque Control — Research Paper | ScholarLens