摘 要:由于开关磁阻电机磁路的不规则和局部区域磁场的严重饱和,物理的解析方法建立其磁链模型是非常困难的。该文提出了一种数学拟合的非线性解析建模方法,它依靠开关磁阻电机全域的磁化特性拟合解析的磁链模型。并依靠最小二乘法来确定磁链模型的参数,从而保证了非线性磁链模型将能反映开关磁阻电机全域的磁化特性。最后给出的本模型和其它两种磁链模型求解静态转矩特性的仿真比较证实了本模型的有效性。 关键词:开关磁阻电动机;非线性模型;数学拟合;静态电磁转矩;最小二乘法
Abstract: Due to irregularity of magnetic circuit and severely local magnetic saturation in switched reluctance motor (SRM), modeling by explicit and accurate physics analysis is difficult. This paper presented a mathematic fitting analytical modeling method which depends on all the static magnetizing feature to fit an analytical flux linkage model. In the procedure of parameter calculation of the model, least square mettod ensured that the model will reflect all the magnetizing feature of SRM. In the end, the simulation comparison with other two flux linkage model of static electromagnetic torque validated the analytical model. Key Words: Switched reluctance motor (SRM); Nonlinear model; Mathematic fitting; Static electromagnetic torque; Least square method
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