目录
1 绪论...........................................................................................................................1
1.1 课题研究的意义与目的 ..................................................................................1
1.1.1 课题研究的意义 ....................................................................................1
1.1.2 课题研究的目的 ....................................................................................2
1.2 智能断路器在国内外发展的现状 ..................................................................2
2 智能低压断路器的原理及理论分析 .......................................................................4
2.1 低压智能断路器控制单元的算法分析 ..........................................................4
2.1.1 电压、电流的计量 ................................................................................4
2.1.2 电网频率、功率因数及功率的计量 ....................................................5
2.2 保护的原理及实现 ..........................................................................................5
2.2.1 过电流保护特性曲线的运用 ................................................................6
2.2.2 保护的实现 ............................................................................................6
3 智能低压断路器的硬件设计 ...................................................................................8
3.1 硬件设计准则 ..................................................................................................8
3.2 智能控制器的硬件电路设计 ..........................................................................8
3.3 嵌入式片上系统 ..............................................................................................9
3.3.1 C8051 系统单片机.................................................................................9
3.3.2 数据采集模块 ......................................................................................10
4 智能低压断路器的软件设计 .................................................................................12
4.1 软件设计概述 ................................................................................................12
4.2 主要程序设计 ................................................................................................12
4.3 定时采样........................................................................................................15
4.4 键盘程序设计 ................................................................................................15
4.5 故障处理........................................................................................................17
4.6 自检程序设计 ................................................................................................18
结论.............................................................................................................................20
致谢.............................................................................................................................21
参考文献.....................................................................................................................22
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