中国电机工程学报2011，Vol.31Issue(9)：126-132,7.
定点谐波平衡有限元法与叠片铁心直流偏磁磁化特性研究
Fixed-point Harmonic-balanced Finite Element Method and DC-biasing Magnetizing Characteristics of Laminated Core
摘要
Abstract
The asymmetry of DC-biasing magnetizing curves leads to the discontinuity of magnetic reluctivity in traditional harmonic-balanced finite element method (HBFEM). Based on the B-H-M magnetic constitutive relation, the fixed-point technique divides the magnetic intensity into linear and nonlinear parts and overcomes the computational problem of discontinued magnetic reluctivity. The HBFEM combined with fixed-point technique was applied to calculate the magnetic field on the basis of DC-biasing magnetizing curve, considering the electromagnetic coupling. The value of fixed-point reluctivity was selected properly in the iterative computation aiming at fast convergence of the harmonic solutions. Finite element analysis of the laminated core model (LCM) was performed based on the DC-biasing magnetizing curve and the counterpart without DC bias respectively. The calculated results demonstrate that the variation of magnetizing characteristic of ferromagnetic material due to DC bias may affect the magnetizing current and magnetic field.关键词
直流偏磁/定点技术/谐波平衡/叠片铁心模型/磁化曲线分类
信息技术与安全科学引用本文复制引用
赵小军,李琳,程志光,鲁君伟,卢铁兵..定点谐波平衡有限元法与叠片铁心直流偏磁磁化特性研究[J].中国电机工程学报,2011,31(9):126-132,7.基金项目
国家自然科学基金项(50677016) （50677016）
河北省自然科学基金项(E2006000772). （E2006000772）
