1.4  

 

     无刷直流电动机的运行特性

 

 

   

                                                                               

 

 

............................................................................

 

    

   6      

1.4.1 

 

 机械特性

 

                                                                          

 

 

.......................................................................

 

 6

  

1.4.2 

 

 调节特性

 

                                                                          

 

 

.......................................................................

 

 6

  

1.4.3 

 

 工作特性

 

                                                                          

 

 

.......................................................................

 

 7

  

1.5  

 

     无刷直流电动机的应用与研究动向

 

 

  

                                                                  

 

 

...............................................................

 

    

   8      

第

      

   2

         

章 无刷直流电动机控制系统设计方案

 

   

                                     

 

 

..................................

 

    

   9

      

2.1  

 

     无刷直流电动机系统的组成

 

 

   

                                                                               

 

 

............................................................................

 

    

   9      

2.2  

 

     无刷直流电动机控制系统设计方案

 

 

  

                                                                  

 

 

...............................................................

 

    

   11

       

2.2.1 

 

 设计方案比较

 

                                                                  

 

 

...............................................................

 

 11

   

2.2.2 

 

 无刷直流电动机控制系统组成框图

 

                                    

 

 

..................................

 

 12

   

无刷直流电动机硬件设计

 

                                                                   

 

 

............................................................

 

    

   14

       

3.1 

       逆变主电路设计

 

 

   

                                                                                                    

 

 

.................................................................................................

 

    

   14

       

3.1.1 

 

 功率开关主电路

 

                                                              

 

 

............................................................

 

 14

   

3.1.2  

 

 逆变开关元件选择和计算

 

                                                

 

 

..............................................

 

 15

   

3.2  

 

     逆变开关管驱动电路设计

 

 

   

                                                                                   

 

 

................................................................................

 

    

   16

       

3.2.1  IR2110

 

     功能介绍

 

                                                           

 

 

.........................................................

 

 16

   

3.2.2  

 

 自举电路原理

 

                                                                 

 

 

..............................................................

 

 19

   

                                                                                              

 

 

...........................................................................................

 

 19

   

3.3  

 

     单片机的选择

 

 

   

                                                                                                        

 

 

.....................................................................................................

 

    

   19

       

3.3.1  PIC

 

     单片机特点：

 

                                                           

 

 

........................................................

 

 20

   

3.3.3  PIC16F72

 

     单片机的功能特性

 

                                          

 

 

........................................

 

 22

   

3.3.4  PWM

 

     信号在

 

     PIC

       单片机中的处理

 

                                    

 

 

..................................

 

 22

   

3.3.5  

 

 

   

时钟电路

 

                                                                    

 

 

.................................................................

 

 23

   

3.3.6  

 

 复位电路

 

                                                                       

 

 

....................................................................

 

 23

   

3.4  

 

     人机接口电路

 

 

   

                                                                                                        

 

 

.....................................................................................................

 

    

   24

       

3.4.1  

 

 转把和刹车

 

                                                                    

 

 

.................................................................

 

 24

   

3.4.2  

 

 显示电路

 

                                                                       

 

 

....................................................................

 

 25

   

3.5  

 

     门阵列可编程器件

 

 

   

   GAL16V8

 

                                                                             

 

 

............................................................................

 

    

   26

       

3.5.1  GAL16V8

 

     图及引脚功能

 

                                                 

 

 

...............................................

 

 26

   

3.6 

       传感器选择

 

 

   

                                                                                                            

 

 

.........................................................................................................

 

    

   27

       

3.7.1  

 

 电流采样及过电流保护

 

                                                   

 

 

.................................................

 

 30

   

3.7.2 LM358

 

     

 

双运放大电路

 

                                                     

 

 

...................................................

 

 31

   

3.8 

       电源电路

 

 

   

                                                                                                                 

 

 

..............................................................................................................

 

    

   32

       

第

      

   4

         

章 无刷直流电动机软件设计

 

                                                    

 

 

..............................................

 

    

   32

       

4.1 

       直流无刷电机控制器程序的设计概况

 

 

  

                                                              

 

 

...........................................................

 

    

   32

       

4.2 

       系统各部分功能在软件中的实现

 

 

  

                                                                      

 

 

...................................................................

 

    

   32

       

4.3  

 

     软件流程图

 

 

   

                                                                                                            

 

 

.........................................................................................................

 

    

   33

       

结束语

 

                                                                                              

 

 

......................................................................................

 

    

   34

       

 

致 谢

 

                                                                                                 

 

 

.........................................................................................

 

    

   35

       

参考文献

 

                                                                                           

 

 

...................................................................................

 

    

   36

       

III