A control method for electrically excited doubly salient motors suitable for hybrid electric vehicles
A technology of electric excitation double salient poles and hybrid electric vehicles, which is applied in the direction of AC motor control, motor vibration suppression control, control system, etc. It can solve the problems of low motor output power, large torque ripple, and insignificant torque ripple suppression. , to avoid dead time and reduce torque ripple
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[0034] The object of the present invention is to provide a control method for an electrically excited double salient pole motor suitable for a hybrid electric vehicle. A three-phase twelve-beat control strategy is proposed for opening and closing. On the premise of ensuring the reliable operation of the motor, in order to suppress the torque ripple and increase the output torque, the present invention divides an electrical cycle into 12 stages, each stage corresponds to a conduction mode of a switch tube, and controls the Current flows into each phase, making the motor form 12 working states in one electrical cycle. The invention not only avoids the torque ripple caused by adding the dead time at the time of commutation (that is, the upper and lower switching tubes are closed at the same time), but also can make full use of the effective range of the inductance to pass in the current in the corresponding direction, which improves to a certain extent the output torque.
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