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1、 毕业设计(论文 )题目题目：无刷电机故障分析与维修无刷电机故障分析与维修系 别：机电工程系 专 业：工程机械运用与维护班 级：机械 3091 学生姓名：贾宝星 指导教师：袁吉 完成日期：2011-11-27 陕 铁 院 教 务 处 制1装装订订线线无刷电机故障分析与维修维护无刷电机故障分析与维修维护摘要摘要无刷直流电机是最近发展起来的结合了多学科技术的一种新型电机，结合机电一体化，具有高速度、高效率、高动态响应、高热容量和高可靠性、免维护等优点，同时还具有低噪声和长寿命等特点。非常适合使用在 24 小时连续运转的产业机械及空调冷冻主机、风机水泵、空气压缩机负载;低速高转矩及高频繁正反转不发热
2、的特性，更适合应用于机床工作母机及牵引电机的驱动;其稳速运转精度比直流有刷电机更高,比矢量控制或直接转矩控制速度闭环的变频驱动还要高,性能价格比更好,是现代化调速驱动的最佳选择。 目前无刷电机已广泛应用于各种领域，如医疗仪器、分析仪器、材料处理、过程控制、机床工业、纺织工业、轻工机械、电动自行车等。无刷直流电机的控制要比普通有刷电机的控制要复杂得多。目前直流电机的控制方法主要有两种，一种是采用专用得直流电机控制芯片，如Motorola公司的MC33035；另一种控制方法各个厂家根据自己的需求采用单片机或DSP进行开发设计。关键词关键词：无刷电机、直流电机控制芯片、调速驱动2装装订订线线Abst
3、ractBrushless dc motor recently developed a multidisciplinary technical combination of a new type of motor, combining electromechanical integration, high speed, high efficiency, high dynamic response, high heat capacity and high reliability, free maintenance etc, but also has a low noise and long li
4、fe etc. Characteristics. Very suitable for use in 24 hours of continuous operation of industrial machinery and air conditioning freezing host, fans pump, air compressor load; Low speed high torque and high frequent positive Its steady speed running accuracy is higher than dc have brushless motor vec
5、tor control or than direct torque control (DTC) speed closed-loop of variable frequency drive taller, performance to price better, is the best choice for modern wire- rope driven. Current brushless motor has been widely used in various fields, such as medical instruments, analysis instruments, mater
6、ial handling, process control, machine tool industry, textile industry, light industry machinery, electric bicycle, etc. Brushless dc motor control than ordinary have brushless motor control is much more complicated. At present the control method of dc motor basically has two kinds, one kind is to u
7、se dedicated to dc motor control chip, such as the Motorola company MC33035; Another kind of control methods each manufacturer according to their own needs adopts singlechip or DSP development design. The design of embedded microcontroller mainly by ATMEGA48 writing control procedures, thus forming
8、a kind of high-performance brushless dc motor controller. It can not only realize MC33035 dc motor control chip fully functional, but also has interface flexible, perfect function, low cost, digital control etc, the user can according to different applications to flexible configuration. Keywords: br
9、ushless motor, dc motor control chip, wire-rope driven3装装订订线线目录目录摘要摘要.1ABSTRACT .2目录目录.3第第 1 章章 概述概述.51.1 无刷直流电动机的发展概况.5 1.2 无刷直流永磁电动机与有刷直流永磁电动机的比较.6 1.3 无刷直流电动机的结构及基本工作原理.7 1.3.1 定子.7 1.3.2 转子.9 1.3.3 霍尔传感器.9 1.3.4 无刷直流电机的工作原理.10 1.4 无刷直流电动机与输出开关管换流信号.12 1.5 无刷直流电动机的运行特性.14 1.5.1 机械特性.14 1.5.2 调节特性.15 1.5.3 工作特性.15第二章第二章 无刷直流电机的维护保养无刷直流电机的维护保养.172.1 无刷直流电机的拆卸.17 2.2 无刷直流电动机的维护和检查.18 2.3 无刷直流电动机的装复.23第三章第三章 电动机电气常见故障的分析和处理电动机电气常见故障的分析和处理.
