全数字锁相环高频感应加热系统的设计  

A New Type ADPLL Used in High-Frequency Induction Pyrogenation System

作　　者：余景华[1] 杨冠鲁[1] 郭亨群[1] 

机构地区：[1]华侨大学信息科学与工程学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2009年第2期147-150,共4页Journal of Huaqiao University(Natural Science)

基　　金：国家自然科学基金资助项目(60678053);福建省自然科学基金资助项目(2006J0168;E0510021)

摘　　要：为解决感应加热系统中频率跟踪的问题,使感应加热系统始终工作在最佳状态,提出一种新型的全数字锁相环(ADPLL)高频感应加热系统的设计方案.该方案是基于现场可编程门阵列,采用比例积分控制的方法.仿真结果表明,ADPLL能够及时有效地进行频率锁定,具有控制跟踪速度快、精度高、可调性强及捕获频带宽等优点.根据不同谐振频率的对象,可以通过调节1/N分频器的参数N,K模计数模块的参数K和积分模块的计数器n的位数,使得ADPLL工作处在最佳状态.To solve the question of frequency follow used in induction pyrogenation system and make it work in the optireal condition, a new type all-digital phase-locked loop （ADPLL）induction pyrogenation system was designed. The project bases on field programmable gate array （FPGA） and adopts proportional-integral control. The results of the simulation show that ADPLL can lock the frequency timely and effectively, and it has many advantages such as follow rate rapidness; high precision;strong flexibility and wide-rang frequency width. According to the resonant frequency of the object, .the parameters N of 1 /N divider, the parameters K of K-mode counting module and the median n of integral module counter can be adjusted to make ADPLL work in the optimal condition.

关 键 词：现场可编程门阵列 全数字锁相环 感应加热 频率跟踪 比例积分 

分 类 号：TM924.5[电气工程—电力电子与电力传动]