Control strategy of built-in permanent magnet synchronous motor for electric vehicle based on ADRC
Aiming at a series of problems such as poor speed response,large overshoot and low anti-interference ability of built-in permanent magnet synchronous motor of electric vehicles during operation,a built-in permanent magnet synchronous motor control strategy based on active disturbance rejection control(ADRC)was proposed.The ADRC did not require an accurate mathematical model of the subject,and all uncertainties of the subject are regarded as"unknown disturbances"and these disturbances are compensated in real time.The ADRC controller was used to replace the traditional PI controller in the speed loop of permanent magnet synchronous motor control system to improve the control accuracy of the motor and the anti-interference ability to the outside environment.In the built-in permanent magnet synchronous motor control system,the maximum torque per ampere(MTPA)was controlled below the rated speed of the motor,and the weak magnetic expansion speed was realized by the method of leading angle weak magnetism above the rated speed.The simulation results verified the effectiveness and reliability of the proposed control strategy.
built-in permanent magnet synchronous motoractive disturbance rejection controlmaxi-mum torque per ampereflux-weaken control
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维普
