无刷直流电机性能分析+文献综述
关键词 无刷直流电机 性能分析 电磁路计算 MAXWELL建模
毕业设计说明书（论文）外文摘要
Title Performance Analysis of Brushless DC Motor
Abstract
The brushless DC motor is a high-tech products which is set of electrical
and electronic integration. It is widely used in industry, transportation,
electronics, aerospace and military fields, for its small size, light
weight, small inertia, simple control and good dynamic performance
characteristics. Therefore, it has great significance to the study of the
brushless DC motor.
This paper first introduces the basic structure and working principle of
the brushless DC motor, so that we have a general understanding of the
motor. Second, analysis motor performance from the written theory. By the
magnetic structure, analyzes the equivalent magnetic circuit of permanent
magnet, the outer magnetic circuit and load characteristics calculation.
By the circuit structure, given the parameter calculation of the motor
windings and motor parameters .Including the armature resistance, armature
current, EMF, electromagnetic torque. Finally, take a concrete brushless
DC motor for example, firstly analyze it by the aforementioned theory, then
modeling this motor by MAXWELL. Get analysis result and Characteristic
curve by the software. Compared with the calculated value. Meanwhile change
the position of permanent magnet, compared the change of the output results
of the different location.
Keywords Brushless DC Motor Performance Analysis
electromagnetic calculation modeling of MAXWELL
目 次
1 绪论 1
1.1 无刷直流电机发展概述 1
1.2 无刷直流电机的特点 2
1.3 无刷直流电机的应用 3
1.4 论文结构 4
2 无刷直流电机基本结构和工作原理 5
2.1 无刷直流电机基本结构 5
2.2 无刷直流电机工作原理 8
3 无刷直流电机性能分析 . 11
3.1 无刷直流电机磁路计算 . 11
3.2 无刷直流电机电路计算 . 15
4 实例分析 . 19
4.1 理论性能分析 . 19
4.2 利用MAXWELL软件建模 . 23
4.3 MAXWELL性能分析 27
结 论 36
致 谢 37
参 考 文 献 . 38
1 绪论
1.1 无刷直流电机发展概述
1.1.1 发展历史
无刷直流电动机是在有刷直流电机的基础上发展起来的，有刷直流电机从 19 世
纪 40 年代出现以来，以其优良的转矩控制特性，在相当长的一段时间内一直在运动