一种新型的三相晶闸管整流触发电路  

A New Thyristor Rectify Trigger System Based on ARM&CPLD

作　　者：贺艳枚[1] 朱建林[1] 

机构地区：[1]湘潭大学信息工程学院

出　　处：《变频器世界》2007年第3期63-65,共3页The World of Inverters

摘　　要：介绍了以LPC2132微控制器和可编程逻辑器件EPM570T100C5为基础结合外围器件构成的新型晶闸管数字移相触发电路。该电路采用数字相位跟踪技术和过零触发的方法.由软件控制产生不同顺序的6组触发脉冲。该法可准确实现触发脉冲与电源信号(线电压)的同步,提高了触发器的抗干扰能力,改善了三相触发脉冲的对称性。The paper introduced a new three-phase thyristor rectify trigger circuit,The circuit was made up of microcomputer LPC2132,CPLD EPM570T1100C5 and other machines. Through using digital phase tracing technique and exceed zero trigger method, we can get different sequencable trigger pulse through changing software.The method can Synchro nized trigger pulse and power signal accurately,It raised trigger＇s anti-interference ability and improved three-phase trigger pulse＇s Symmetry.

关 键 词：CPLD 数字相位跟踪 过零触发 控制角 

分 类 号：TN32[电子电信—物理电子学]