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Research on current decouple control based on stator-field orientation vector control

QI Chun-qing

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Abstract

Based on vector control of stator-field orientation,the paper induces mathematical model of stator-field orientation for asynchronous motors.The paper also induces the relationship between components of stator current and magnetic link in a synchronous rotating coordinate system.In addition,this paper carries out a further discussion on the coupling of the components of the stator current on axis q and d.Establishing the mathematical model and its simulation results indicate that current isqonly control torque and current i_(sd)control Ψ\-1,and decouple control can be realized.

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What this paper is about

Based on vector control of stator-field orientation,the paper induces mathematical model of stator-field orientation for asynchronous motors.The paper also induces the relationship between components of stator current and magnetic link in a synchronous rotating coordinate system.In addition,this paper carries out a further discussion on the coupling of the components of the stator current on axis q and d.Establishing the mathematical model and its simulation results indicate that current isqonly control torque and current i_(sd)control Ψ\-1,and decouple control can be realized.

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Available abstract

Based on vector control of stator-field orientation,the paper induces mathematical model of stator-field orientation for asynchronous motors.The paper also induces the relationship between components of stator current and magnetic link in a synchronous rotating coordinate system.In addition,this paper carries out a further discussion on the coupling of the components of the stator current on axis q and d.Establishing the mathematical model and its simulation results indicate that current isqonly control torque and current i_(sd)control Ψ\-1,and decouple control can be realized.

Key concepts: Stator, Vector control, Current (fluid), Control theory (sociology), Direct torque control, Induction motor, Orientation (vector space), Torque

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