摘要
首先推导交直轴电流和定子三相电流对应关系的表达式,在此基础上,研究了计及铁心饱和和交叉影响对永磁电机电感的影响。以一台380 V、22 k W的内嵌式永磁同步电动机(IPMSM)为例,在Ansoft/Maxwell环境下建立有限元模型,采用冻结磁导率法(FPM)仿真分析得出定子电枢绕组只通交轴电流、只通直轴电流和交直轴电流均存在时电机交直轴电感随定子电流和转子位置角的变化规律。为进一步研究分析永磁电机提供理论基础。
Corresponding related expressions of current about d-q axis and stator three phases were derived. On this basis, influence to inductance considering iron saturation and cross effect was investigated. This paper took an Interior Permanent Magnet Synchronous Motor （IPMSM） with 11 kW, 380 V as example, firstly Ansoft/Maxwell was used to establish the finite element simulation model, then Fixed Permeability Method （FPM） was applied to analyze laws between d-q axis inductance with current which include quadrate axis current, direct axis current and both of them, by the way, laws of d-q axis inductance with rotor position was obtained. This paper is significant for analyzing and designing of PMSM.
出处
《微电机》
2015年第6期23-27,共5页
Micromotors
基金
山西省自然科学基金(2013011035-1)
关键词
交直轴电感
冻结磁导率
有限元
铁心饱和
d-q axis inductance
fixed permeability method
finite element
iron saturation
