The problem of current coupling in permanent magnet synchronous motor(PMSM) will affect control performance of the motor. The id = 0 control in the field-oriented control(FOC) can realize the static decoupling of curr...
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ISBN:
(纸本)9781509046584
The problem of current coupling in permanent magnet synchronous motor(PMSM) will affect control performance of the motor. The id = 0 control in the field-oriented control(FOC) can realize the static decoupling of current and improve the steady-state performance of the system. But this method does not solve the dynamic coupling problem of current, which will reduce the dynamic performance of the motor. Therefore, aiming at the problem of current dynamic coupling in PMSM system, a dynamic-decoupling controller of current based on Lyapunov stability theory is proposed in this paper. In order to solve the problem of controller gain selection in engineering, a random algorithm is adopted to narrow the range of controller gain. Compared with PID controller, the proposed controller can greatly decrease the number of controller gain and reduce the burden of controller gain selection simultaneously. Finally, the validity of proposed controller is verified by the model of PMSM system established in MATLAB/Simulink.
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