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针对开关磁阻电机实际工作中因磁路饱和导致位置检测不准确的问题,提出了一种基于典型位置电感的开关磁阻电机无位置传感器控制策略.该方法在电机运行时,向非通电相注入高频脉冲电流,获取全周期定子电感信息,利用各相电感值及其大小关系检测转子的典型位置点,再由相邻两点的位置计算电机转速,进一步估算转子在任意时刻的位置.由于所选取的位置点的电感特征受磁路饱和影响较小,该方法提高了开关磁阻电机无位置传感器控制中实时位置的估算精度.通过仿真与实验验证了所提方法的有效性.“,”In view of the magnetic circuit of switched reluctance motors is saturated in the practical work and the inductance is a nonlinear function of rotor positions and phase currents,a new control strategy for sensorless based on inductance typical positions when the motor in low speed operation was proposed in this paper.When the motor is operated,the non-conducting phase is injected into high frequency pulse;thereby the whole period inductance information is obtained.The typical position points are obtained by the logical relation of the inductance,and the rotational speed can be calculated by the time interval between two adjacent points,so the rotor position can be estimated.Due to the different load,the motor needs to consider the saturation of the magnetic circuit.However,the selection of location points in this paper is little affected by the saturation factor of the conduction phase when the load is carried,so the method can be operated under different load saturation conditions of the motor.The feasibility and correctness of the method are verified by simulations and experiments.