Developmental Research of Switched Reluctance Motor with AC Excitation.

开关磁阻电动机结构简单、鲁棒性强，能承受高速运行，但需要复杂的控制技术。近年来电力电子技术和控制技术的显着进步使SR电机成为现实，主要在欧洲和美国得到了广泛的研究，但研究倾向于控制策略。我们提出了一种新型SR电机“交流励磁新型开关磁阻电机”，其中短-在转子的磁极之间的空间中安装电路绕组，并且定子绕组由交流调制的脉冲电流激励，电流波与偏置频率。短路绕组减少了q轴和漏磁通，从而导致产生额外的扭矩。实验结果表明，这种新型SR电动机的转矩比传统SR电动机大，特别是在低速区。本文还提出了一种采用常规脉冲电流励磁的q轴短路绕组的圆柱转子型SR电动机。实验揭示了其基本特性。

A switched reluctance(SR) motor is simple and robust in structure and is able to endure high speed operation but requires sophisticated control technique. Recent remarkable advance of power electronic and control technique made the SR motor realistic and it has been widely studied mainly in Europe and U.S.A.However the research inclined to the control strategy.We propose a novel SR motor "AC-Excited New Type Switched Reluctance Motor", in which short-circuited windings are installed in the spaces between the iron poles of the rotor and the stator windings are excited by the pulse current modulated by ac-current wave with bias frequency. The short-circuited winding reduces the q-axis and leakage flux and, in result, causes additional torque generation. The experiments show that the new type SR motor produces larger torque, especially in low speed region, than the conventional SR motor.We also proposed the cylindrical-rotor type SR motor which has q-axis short circuited windings and is excited by the usual pulse current. The fundamental characteristics are revealed experimentally.