直接功率控制双PWM焊接电源研究  

Research of dual PWM inverter welding power source based on direct power control

作　　者：刘暐[1,2] 王红艳[1] 宫成[2] 万健如[2] 

机构地区：[1]河北工程技术高等专科学校,电气自动化系,河北沧州061001 [2]天津大学电气与自动化工程学院,天津300072

出　　处：《电源技术》2013年第3期478-480,共3页Chinese Journal of Power Sources

基　　金：国家自然科学基金资助项目(60874077);国家质检总局公益性行业科研专项资助项目(200910097,201010057)

摘　　要：常规逆变焊机的大量使用会引起谐波污染电网,并导致功率因数降低。随着相关谐波限制标准的出台和实施以及人们对电网污染认识的不断加深,对逆变焊机进行功率因数校正、抑制谐波产生势在必行。因此提出一种基于直接功率控制双PWM焊接电源,通过仿真发现可有效提高功率因数并抑制网侧电流谐波,制作样机进行小功率实验,实验结果证明与仿真分析相一致。The wide use of conventional welding inverter can cause the harmonic pollution in power grid,as people to power the pollution awareness deepening and related harmonic limits of standard issued and implemented,the welding inverter power factor correction to suppress harmonic wave,is imperative.So the dual PWM welding power source based on the direct power control was proposed.The simulation results and the experimental waves of prototype both prove that the power factor and control the nets side current harmonic can be effectively improved.

关 键 词：直接功率控制 双PWM 逆变焊接电源 DSP 

分 类 号：TM351[电气工程—电机]