ALA转子磁阻同步电动机的动态不稳定性  

Dynamic Instability in Axially-Laminated Anisotropic(ALA) Rotor Reluctance Synchronous Motors

作　　者：王英[1] 辜承林[2] 田一[3] 

机构地区：[1]大连铁道学院电气信息分院,116028 [2]华中理工大学电力系,430074 [3]大连铁道学院,116028

出　　处：《电工技术学报》2000年第5期30-33,共4页Transactions of China Electrotechnical Society

摘　　要：采用小信号分析法研究了ALA转子磁阻同步电动机开环运行时的动态不稳定性问题 ,导出了ALA转子磁阻同步电动机电磁阻尼转矩系数的解析表达式 ,分析了电动机在小值振荡条件下的电磁阻尼特性 ,提出ALA转子电动机的动态不稳定性在电动机电源频率略大于电动机振荡的自然频率时产生。理论分析与实验结果相符。A stability study of axially\|laminated anisotropic(ALA)rotor reluctance synchronous motor,during open\|loop operation,is performed by the theory of small disturbance.The analysis enables the characteristics of electromagnetic damping torque coefficient against supply frequency to be obtained for the value of rotor small disturbance.According to these characteristics,it is proposed that an instability occurs at low speed,corresponding to frequency supplied a little greater than the natural one of the oscillation.Experimental results agree with the theoretical ones well.

关 键 词：磁阻同步电动机 动态不稳定性 ALA转子 

分 类 号：TM352.06[电气工程—电机]