运动控制系统课程设计说明书题目：基于单片机的无刷直流电动机控制系统设计专业班级：电气自动化 02班学号：13姓名：孔令上指导教师：文小玲王振成绩：2013年6月21日至7月2日基于单片机的无刷直流电动机控制系统设计Design of brushless DCmotor control system onsingle-chip microcontroller学生姓名: 孔令上指导教师: 文小玲王振课程设计量化评分标准?答辩记录摘要电动机作为机电能量的转换装置,其应用范围已遍及国民经济的各个领域以及人们的日常生活之中。
传统的直流电动机均采用电刷, 以机械方法进行换向, 存在着相对的机械摩擦, 由此带来了噪声、火花、无线电干扰以及寿命短等致命弱点, 制造成本高及维修困难等缺点,因而大大地限制了它的应用范围。
永磁无刷直流电动机是近年随着电力电子器件及新型永磁材料发展而迅速成熟起来的一种新型机电一体化电机，它具有以下特点: 1．无刷直流电动机的转子采用高磁能积的稀土磁钢作为转子磁钢, 其转动惯量比鼠笼转子要小, 所以对于给定的转矩能够响应得更快, 控制特性更好。
2．无刷直流电动机的效率比感应电动机高。
因为在感应电机运行时, 转子上不会产生铜损和铁损。
3．在相同容量下, 无刷直流电动机的体积相对要比感应电机小, 重量轻。
4．无刷直流电机的噪音小。
5．无刷直流电机调速方便, 灵活, 范围广。
在分析无刷直流电动机（BLDCM）数学模型的基础之上，提出了一种新型的无刷直流电机控制系统建模仿真方法。
在Matlab/Simulink环境之下，利用无刷电机关键词：无刷直流电动机；电刷；换向器；单片机AbstractMotor as electromechanical energy conversion devices, and their use has spread invarious fields of national economy and people in their daily life. Traditional DC motor brushes, mechanical method of commutation, there is a relatively mechanical friction, which bring about the fatal weakness of noise, sparks, radio interference, and short life, manufacturing high cost and maintenance difficulties and shortcomings. thus greatly limiting its scope of application. The permanent magnet brushless DC motor is rapidly maturing in recent years with the development of power electronic devices and new permanent magnetic materials up a new the mechatronics motor, it has the following characteristics:1. The rotor of the brushless DC motor with high energy product rare earth magnet as the rotor magnet, the squirrel cage rotor inertia ratio is smaller, so for a given torque can respond faster to control features better.2. The efficiency of the brushless DC motor is higher than the induction the induction motor is running, the rotor does not produce the copper loss and iron loss.3. In the same capacity, the volume of the brushless DC motor is relatively better than the induction motor is small, light weight.4. Brushless DC motor noise. 5 Brushless DC motor speed convenient, flexible, and a wide rangePermanent magnet brushless DC motor controller structure has many forms, the initial complex analogue to the recently digital microcontroller as the core, but the new motor control ASIC, brushless DC motor speed control device design a great convenience, integrated analog control chip controlling function, the protection function, stable performance, simple system composed of the peripheral circuits required, and strong anti-jamming capability, especially suitable for volume controller, the performance requirements higher occasions. Advantages of a dedicated control chip of course, but often are expensive. In the occasion of some control accuracy is not high, you need to be able to have a working stability, price and relatively low-cost controller. This design is based on market demand.Keywords:HCCI；Chemical Kinetics；Numerical Simulation；DME；目录摘要............................................................................................................错误!未定义书签。
