电动汽车永磁轮毂电机磁场非线性解析计算方法

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电动汽车永磁轮毂电机磁场非线性解析计算方法

更新时间：2025-07-09

- 电动汽车永磁轮毂电机磁场非线性解析计算方法
- Issue 2, Pages: 104-112(2019)
- 作者机构：
  
  1. 重庆大学机械工程学院
  2. 重庆大学机械传动国家重点实验室
  3. 重庆大学汽车工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： U469.72
- Published：2019
- 稿件说明：
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[J]. 2019, (2): 104-112.
DOI：

[J]. 2019, (2): 104-112. DOI：

摘要

针对传统解析法通常假设铁磁材料磁导率为无穷大、忽略了磁饱和效应的问题

提出一种考虑铁磁材料磁导率非线性影响的磁场解析建模方法。利用复数形式的傅里叶级数和柯西乘积将材料磁导率嵌入到静磁场求解中

将永磁轮毂电机分为定子齿槽、气隙和永磁体3个求解域

以矢量磁位为求解变量

根据激励源的不同在各求解域建立拉普拉斯方程或泊松方程

联立边界条件求得各域矢量磁位。根据材料非线性B-H曲线

利用迭代算法得到了各工况下定子齿上的相对磁导率分布

计算了空载、电枢、负载磁场分布及输出转矩

并通过有限元法验证了该非线性解析法较传统解析法更准确。

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