针对三相全桥式功率变换器驱动的短磁路互感耦合开关磁阻电机(short-flux path mutually coupled switch reluctance motors,S-MCSRM),在任意时刻必须两相同时导通的特点,提出等效磁链的概念并给出等效电路模型,推导等效磁链方程.通过有限元计算得到S-MCSRM的自感,相电感,相间互感及等效电感,并和传统开关磁阻电机(switch reluctance motors,SRM)作对比分析.此外,根据S-MCSRM转矩方程,对比分析了两种电机自感和互感随相电流变化的规律,分别得出两种电机自感和互感对输出力矩的影响,在此基础上,研究了两种电机不同开通角对转矩脉动系数的影响.研究结果表明,通过合适的控制策略,新型S-MCSRM具有较大输出力矩和较小转矩脉动系数.%A concept of equivalent flux linkage and an equivalent circuit model were presented according to the characteristic of short-flux path mutually coupled switch reluctance motor( S-MCSRM) of two phase simultaneous conduction at any time. The equivalent flux linkage equation was deduced based on proposed equivalent circuit model. Then, self-inductance, phase inductance, mutual inductance and the e-quivalent inductance of the S-MCSRM were obtained by using the finite element method (FEM) and were compared with the conventional switch reluctance motor(SRM). In addition, the characteristic of self-inductance and mutual inductance versus phase current were compared and analyzed according to the torque equation of S-MCSRM and obtains the influence of self-inductance and mutual inductance of two motors on the output torque. Based on this, the effect of different turn-on angles to torque ripple coefficient for two motors were studied. The results show that the new S-MCSRM is characterized by large output torque and low torque ripple coefficient with a proper control strategy.
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