Optimization of torque and peak current of switched reluctance motor based on improved torque sharing function
In switched reluctance motor(SRM),the traditional torque sharing function control is used,and the switching angle of the torque sharing function is constant,so that it has more obvious torque rip-ple and high peak current phenomenon in the commutation stage.In view of this phenomenon,a control method was proposed for the exponential torque sharing function that adjusts the switching angle in real time to reduce torque ripple and phase peak current.Compared with the traditional torque sharing con-trol,the proposed algorithm can suppress torque ripple and reduce the commutation peak current of SRM stator winding at different motor speeds,and optimize the switching angle and overlap angle of the torque sharing function in real time under medium and low speeds,which improves the operating efficiency of SRM.A 2.2 kW 12/8 switched reluctance motor was taken as the control object,and the simulation model of the control system was established,and the effectiveness of the proposed algorithm was verified by simulation and experiments.
switched reluctance motorstorque sharing functionswitch angletorque ripplepeak current
万方数据
维普
