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首页> 外文期刊>Applied Superconductivity, IEEE Transactions on >Dynamic Demagnetization Computation of Permanent Magnet Motors Using Finite Element Method With Normal Magnetization Curves
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Dynamic Demagnetization Computation of Permanent Magnet Motors Using Finite Element Method With Normal Magnetization Curves

机译:具有正磁化曲线的有限元方法对永磁电动机的动态消磁计算

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摘要

A time-stepping finite element method (FEM) to simulate the transient operations of permanent magnet (PM) motors is presented. It uses only the normal magnetization curves to address the effects of irreversible demagnetization of PM materials. An effective algorithm to implement the methodology with nonlinear iteration is presented. A formulation of Newton-Raphson method using the true Jacobian matrix which is applicable to any type of elements and any order of elements with anisotropy materials is derived. A matrix method is introduced to express space vectors and the FEM formulation can be conveniently deduced.
机译:提出了一种用于模拟永磁(PM)电动机瞬态运行的时步有限元方法(FEM)。它仅使用正常的磁化曲线来解决PM材料不可逆退磁的影响。提出了一种实现非线性迭代方法的有效算法。推导了使用真实雅可比矩阵的牛顿-拉夫森方法的公式,该矩阵适用于任何类型的元素以及具有各向异性材料的任何顺序的元素。引入矩阵方法来表达空间向量,可以方便地推导出有限元公式。

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