目 录
摘 要.........................................................................................................I
Abstract.....................................................................................................II
1 绪论 .......................................................................................................................1
1.1 课题的背景和提出........................................................................................1
1.2 弧焊电源的发展状况和研究现状................................................................1
1.3 软开关............................................................................................................5
1.4 本文的研究内容、目的和意义....................................................................6
2 逆变弧焊电源原理及设计方案....................................................................7
2.1 逆变弧焊电源原理........................................................................................7
2.2 设计方案确定..............................................................................................11
3 模糊控制器设计 ..............................................................................................15
3.1 模糊理论的提出及可行性..........................................................................15
3.2 模糊控制基本原理......................................................................................15
3.3 模糊控制器设计..........................................................................................16
4 主电路设计与实现 .........................................................................................29
4.1 移相控制软开关全桥逆变器设计..............................................................29
4.2 高频变压器设计..........................................................................................33
4.3 输入整流器设计..........................................................................................36
4.4 输出整流器设计..........................................................................................37
5 控制系统软件设计 .........................................................................................38
5.1 软件结构设计..............................................................................................38
5.2 控制系统主程序设计..................................................................................39
5.3 外中断服务程序设计..................................................................................44
5.4 数据采集控制..............................................................................................47
5.5 标度变换......................................................................................................47
6 逆变弧焊电源控制硬件系统设计 .............................................................48
6.1 控制系统设计要求......................................................................................48
6.2 控制系统的设计思路..................................................................................49
6. 3 单片机核心电路设计.................................................................................49
6.4 参数给定与操作键的控制............................................................................50
6.5 检测电路......................................................................................................52
6.6 A/D 和 D/A 转换电路 .................................................................................53
6.8 驱动电路 .....................................................................................................................57
6.9 显示电路......................................................................................................58
