轴向迭片各向异性转子电机振荡及异步运行分析

轴向迭片各向异性ALA转子电机是 90年代以来得到较快发展的 1种新型磁阻同步电机。在实验研究中 ,发现二极实验电机有振荡及异步运行现象。对此进行了深入的理论分析与探讨 ,揭示出电机转子铁芯 q轴导磁叠片中产生的“单轴转矩”是造成这种现象的根本原因 ,并在简化分析基础上推导出了单轴转矩计算的显式公式。结合实验电机给出了算例 ,最后提出了改进电机结构的措施

STUDY OF OSCILLATION AND ASYNCHRONOUS OPERATION ON ALA ROTOR MOTOR

As a new type of RSM(Reluctance Synchronous Machine),ALA(Axially Laminated Anisotropic) rotor motor has been developed rapidly since the 90's. Experimental research on a two pole prototype motor shows that both oscillation and asynchronous operation may occur. Focusing on these problems, theoretical research draws that the single axis torque, induced in the iron laminations at q axis while the speed offsets from the synchronous one, is the essential reason. Based on some necessary assumptions, a simplified formula of single axis torque is deduced. Accordingly, the proposals aimed to improve the motor's structure and dynamic performance significantly are mentioned.