摘要
提出了一种新型的数字触发系统,该触发系统采用锁相环提取同步信号,触发脉冲形式采用高频调制脉冲.实验表明由该系统产生的触发脉冲不仅具有很好的一致性、对称性和可靠性,而且可以节省系统资源,减轻CPU的负担.该触发系统现已成功地应用于“KZJ-系列全数字交流电动机软起动器”中.
This paper propsose a new-type digital triger sysytem, this system obtain synchronous signal throuth PLL, the form of the pulse is high frequency . Experiment showed that the triger pulse produced by it is very consisitent, symmetrical and reliable , futhermore it can save systematic resources for us, lighten the burden of CPU. This sysytem has been used in 'KZJ-F fully digital explosion-proof soft starter' successfuly.
出处
《河北工业大学学报》
CAS
2003年第4期26-29,共4页
Journal of Hebei University of Technology
基金
河北省科学技术研究与发展计划资助项目(00213598D)
天津市科委重大科技攻关计划项目(003102111)
关键词
异步电动机
软起动
锁相环
高频
触发
AC motor
soft starter
phase-locked loop
high frequency
triger
