基于有限元分析的开关磁阻电机电感模型无位置传感器技术  

Position Sensorless Technology of Switch Reluctance Motor Based on Inductance Model through Finite Element Analysis

作　　者：蒯松岩[1] 赵帅[1] 张中[1] 衡凤平 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《电机与控制应用》2017年第2期70-77,共8页Electric machines & control application

摘　　要：提出了一种基于开关磁阻电机(SRM)非线性电感模型有限元分析(FEA)的位置估算方法。基于SRM电磁特性非线性的事实,经由傅里叶分析,3次以上的谐波含量较小,忽略3次以上的谐波含量,得出简化电感模型,并基于此电感模型提出转子位置估算方法。试验结果验证了此方法的可行性,在不同的饱和度条件下,这种方法都可以准确地估算出SRM的转子位置。A position estimation method of the switched reluctance motor （SRM） based on inductance model through FEA was presented. The phase inductance of SRM was seriously nonlinear. Fourier computed result for phase inductance showed that harmonic content of more than three times was smaller. Ignored more than three times harmonic, the simplified inductance model was expressed. Then a rotor position estimation method based on the inductance model was presented. Experiments resuhs showed that the proposed method was feasible, and under different saturated conditions, the method could accurately estimate the rotor position of SRM.

关 键 词：开关磁阻电机 电感模型 电感饱和影响 转子位置估计 

分 类 号：TM352[电气工程—电机]