短路过渡焊接电源系统建模及仿真研究  

Study on modeling and simulation of short circuit transfer of inverter arc welding system

作　　者：左敦桂[1] 李芳[1] 华学明[1] 吴毅雄[1] 

机构地区：[1]上海交通大学焊接工程研究所,上海200030

出　　处：《电焊机》2007年第1期27-30,共4页Electric Welding Machine

基　　金：上海市科学技术委员会科研计划资助项目(036105001)

摘　　要：通过分析焊接过程中产生飞溅的原因,提出了可变电感的电流波形控制方案,应用Matlab/Simulink建立了逆变焊接电源系统的仿真模型。该模型包括弧长变化模型、电弧负载模型、逆变电源占空比模型、焊接电路模型,特别是从飞溅控制方面考虑建立了可变电感仿真模型。试验波形与仿真波形对比表明了此模型的合理性,从而为深入焊接电源研究提供了一定的理论基础。By analyzing the reasons for spattering, the following current control method based on regulable inductance is bring forward. According to the current-wave-control method in this paper, by using the Simulink function module of Matlab, we build up the invert welding power source arc simulating model.This model includes the modeling of welding arc length, the modeling of arc. load, modeling of inverter power arc system, the modeling of dynamic inductance for special consideration to the spattering control.The result of invert power source using the wave control method mentioned in this paper demonstrates the rationality of the method and the model,and the consistence between experiment wave and the simulating wave,so as to provide directing theory to the profound research of welding power source.

关 键 词：短路过渡 动态特性 计算机仿真 

分 类 号：TG434.1[金属学及工艺—焊接]