电机磁路计算教学中将物理概念转化为几何关系的思想  

The Idea of Transforming Physical Concept into Geometric relations in the Teaching of Electric Machine Magnetic Circuit Calculation

作　　者：杜江[1] 韩旭[1] DU Jiang;HAN Xu(School of Electrical Engineering, Hebei University of Technology, State Key Laboratory of Reliability and Intelligence of Electrical Equipment Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Tianjin 300130, China)

机构地区：[1]河北工业大学电气工程学院省部共建电工装备可靠性与智能化国家重点实验室,河北省电磁场与电器可靠性重点实验室,天津300130

出　　处：《电气电子教学学报》2020年第2期112-115,共4页Journal of Electrical and Electronic Education

基　　金：河北工业大学2018年度网络课程《电机设计》建设项目;2018年度河北省教改项目(2018GJJG582);国家级新工科项目:面向京津冀先进设备制造产业新专业群建设及人才培养模式探索与实践。

摘　　要：本文通过对磁路计算基本原理的论述引出了将物理概念转化为几何关系的思想,以计算极弧系数的确定、凸极同步机气隙形状的确定、气隙系数的确定为例阐述了这种思想。在教学中通过传递这种思想,不仅可以提高学生对磁路计算的理解,而且为学生今后在学习、工作中解决类似问题提供了一种思维方法。In this paper,the idea of transforming physical concepts into geometric relations is introduced by discussing the basic principles used in magnetic circuit calculation.The idea is elaborated from the determination of calculation pole arc coefficient,air gap shape of salient pole synchronous machine and air gap coefficient.As this idea is passed in the teaching process,which can not only improve students’understanding of magnetic circuit calculation,but also provide a way of thinking for students to solve similar problems in their future study and work.

关 键 词：磁路计算 均匀磁场 物理概念 几何关系 

分 类 号：G426[文化科学—课程与教学论]