Inductance computation and operation analysis of high-speed SRM

High-Speed switched reluctance motors(SRM) often operate under the mode of angle position control(APC).Accurate inductance curve is very important to decide the turn-on and turn-off angle of SRM control.In this paper the static and dynamic inductances were calculated by the incremental energy method.The calculated results show that the dynamic inductance can reflect the dynamic and saturation characteristics of SRM better.Therefore the APC scheme of the high-speed SRM should be obtained according to dynamic inductance characteristics.On the basis of finite element software JMAG-Studio,the magnetic field of SRM operated in APC mode was calculated using field-circuit coupling method.The magnetic field distribution,current,and torque characteristics were verified.