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基于单片机输入捕捉功能的同期检测
Synchronized Detection Based on MCU′s Function of Input Capture
【摘要】 提出了一种软硬件相互结合的线路微机保护的同期检测方法。该方法通过硬件方波发生电路,利用一般单片机均具有的输入捕捉功能,比较线路电压和母线电压上升沿的捕捉值,从而反应到两者相位的差值,实现了同期角度的判别。实践证明此方法实现简单,并且能够快速、精确地进行同期检测。
【Abstract】 Authors propose a new method for detecting synchronization in microcomputer line protection based on the input capture function of MC68H912DG128A. This method combines hardware and software function.At rising time,we use the Input Capture function of MCU to compare the captured value of power line and bus bar,then the result can be reflied in the difference of case. Practice shows this method is easy,quick and exact.
【关键词】 同期检测;
同期合闸;
自由定时器;
输入捕捉;
线路微机保护;
【Key words】 synchronized detection; synchronized close; free timer; input capture; microcomputer line protect;
【Key words】 synchronized detection; synchronized close; free timer; input capture; microcomputer line protect;
- 【文献出处】 太原理工大学学报 ,Journal of Taiyuan University of Technology , 编辑部邮箱 ,2005年03期
- 【分类号】TP368.1
- 【被引频次】3
- 【下载频次】119