摘要无刷直流电机是基于有刷直流电机发展起来的。虽然目前直流电机和交流电机仍受普遍受关注，但无刷直流电机正在趋于主流。

作为一种新型的调速系统，无刷直流电机调速系统具有较好的运行、控制及经济性能。无刷直流电机的原理是用电子换向替换了传统的机械换向和电刷。在这种原理的应用下，无刷直流电机不仅拥有直流电机较好的调速性能，同时拥有交流电机的运行可靠、维护方便、结构简单等优点。86134

本设计从三种大方案着手，分析无刷直流电机的调速控制方法。在电机及驱动器等硬件部分的基础上，建立数学模型以及控制电路图。在控制电路图设计完成之后，将硬件资源根据电路图连接起来。硬件资源连接完成后就开始进行三种大方案的研究。

方案A的设计是基于ST8N60P40V4E无刷直流电机供应商提供的配置软件CME2，按步骤安装好配置软件后，根据已有参数设置电机基本配置。最终在控制界面直接输入理想转速就能够实现电机调速。

方案B的设计是通过AMESim仿真模拟软件实现。在设计出直流电机参数辨识仿真图后对PID算法的参数进行获取，然后在电机系统控制图中对PID算法参数进行设置，最终通过改变输入的阶跃信号幅值就能实现电机调速。

方案C的设计由两部分组成，一部分是模拟量控制电机转速，一部分是可编程控制转速，两种模式都是在C++Builder软件上实现。在设计出合理控制界面后，对界面按钮进行编程调试，最终在输入的电压信号的控制下实现电机转速控制。

最后通过反复试验的试验结果表明：三种调速方案的设计是科学合理的，都能够达到预期的设计效果。

毕业论文关键词：无刷直流电机调速、PID算法、AMEsim建模仿真、C++Builder软件编程

Abstract Brush-less DC motor is based on the development of a brush DC motor。 Although the current DC motor and AC motor is still subject to widespread concern, but the brush-less DC motor is tending to the mainstream。

As a new type of speed control system, no brush DC motor speed control system has better operation, control and economic performance。 No brush DC motor principle is to use electronic commutation to replace the traditional mechanical commutator and brush。 In the application of this principle, brush-less DC motor embraced not only DC motor good speed regulation performance, also have AC motor running reliable, convenient maintenance, simple structure, and other advantages。

This design from three big plan to proceed, analysis of Brush-less DC motor speed control method。 On the basis of motor and drive and other hardware parts and the establishment of mathematical model and the control circuit diagram。 After complete the control circuit design, hardware resources according to the circuit diagram connected。 The hardware resources to complete the connection began to study three big plans。

A program design is based on the ST8N60P40V4E no brush DC motor suppliers to provide the configuration software CME2, follow the steps to install the configuration software, the basic configuration of the motor is set up according to the parameters have。 Eventually in the control interface direct input desired speed to the motor speed。

The design of scheme B is by AMESim simulation software。 In the design of the parameter identification of DC motor simulation diagram of the parameters of the PID algorithm to obtain, and then in the motor system control diagram to set the parameters of the PID algorithm, and finally by changing the order of the input signal amplitude jump to the motor speed。

C program design is composed by two parts, a part is analog quantity control motor speed, the part is programming speed control, the two models are implemented in C + + Builder software。 In design, a reasonable control interface, the interface button for programming and debugging, finally in the input electric pressure signal under the control of achieve motor speed control。