逆变焊接电源节能高效的绿色设计  

Design of inverter welding power for economical and high efficiency

作　　者：杨希炯 陈要玲 石文波 

机构地区：[1]无锡汉神电气有限公司,江苏无锡214192

出　　处：《电焊机》2009年第2期18-23,共6页Electric Welding Machine

摘　　要：逆变焊机的应用越来越普及,但是实测的AC/DC的电效率却很低,主要原因是由于逆变器的输入整流器和电容滤波器所产生的高次谐波电流造成的。高次谐波电流不仅降低了焊机的功率因数,而且对电网造成很大的污染和破坏。对逆变焊机采用有源功率因数校正器提高功率因数的问题进行详细分析,重点介绍了UC3854控制的升压型电路和开关整流器电路的工作原理及设计问题。The application of inverter welding machine is more and more universal,trot the actual AC/DC electrical efficiency is very low,this is mainly caused by the high harmonic currents of the inverter＇s input rectifier and capacitor filter.The high harmonic current not only reduces welding machine＇s power factor,but also causes tremendous pollution and destruction to the network supply.This paper makes a detailed analysis on the design that used the active power factor correction to the inverter welding machine to enhance the power factor,puts an emphasis on boost circuit controlled by UC3854 and the principle of the switch mode rectifier.

关 键 词：逆变焊机 有源功率因数校正 开关整流器 

分 类 号：TG434.1[金属学及工艺—焊接] TM714.3[电气工程—电力系统及自动化]