新能源发电综合实践报告
目录
一、课程设计要求..................................................................................................................1
1 任务................................................................................................................................... 1
2 设计要求...........................................................................................................................1
3 任务分析...........................................................................................................................3
二、硬件电路设计..................................................................................................................5
1 按键电路设计...................................................................................................................5
2 驱动电路设计...................................................................................................................5
2.1 IR2110 特性................................................................................................................5
2.2 高端侧悬浮驱动的自举原理.....................................................................................6
2.3 电路原理图................................................................................................................ 8
2.4 器件的选择................................................................................................................ 9
2.5 问题与总结..............................................................................................................10
3 主电路设计..................................................................................................................... 14
3.1 主电路原理图...........................................................................................................14
3.2 两点式 PWM 控制策略............................................................................................15
3.3 电感匝数的选择.......................................................................................................16
4 电源电路设计.................................................................................................................17
5 调理电路设计.................................................................................................................18
5.1 调理电路所用芯片简介...........................................................................................19
5.2 直流输入电压采集电路...........................................................................................21
5.3 输出交流电压采集电路...........................................................................................22
5.4 交流输出电流采集电路...........................................................................................25
5.5 调理电路小结...........................................................................................................25
6 液晶外围电路设计..........................................................................................................27
7 DSP 外围电路设计..........................................................................................................27
三、软件编程设计................................................................................................................30
1 程序设计总体流程图......................................................................................................30
2 产生 SPWM 波................................................................................................................. 31
