基于Simulink的大功率闪光焊机的电源仿真  

Simulation of power system of large energy flash butt welder based on Simulink

作　　者：王睿[1] 孙立雄[1] 张军伟[1] 高忠林[2,3] 

机构地区：[1]河北工业大学控制科学与工程学院,天津300130 [2]中船重工第七零七研究所 [3]天津七所高科技有限公司,天津300409

出　　处：《电焊机》2013年第4期38-40,71,共4页Electric Welding Machine

基　　金：天津市应用基础及前沿技术研究计划资助项目(11JCYBJC06500)

摘　　要：针对大截面钢坯闪光焊接的特点,分析了大功率闪光焊机电源的工作原理,其主电路采用变压器初级调压、次级整流的拓扑结构。建立了基于Simulink功率模块的具有非线性特征的主电路模型和动态电阻负载模型。动态电阻主要由焊件的电阻和焊件端面之间的接触电阻组成。仿真结果表明,建立的主电路模型和动态电阻负载模型能够较为真实地模拟闪光对焊的动态过程,推动了大功率闪光焊机电源系统的数字化建模和仿真的研究水平。According to characteristic of flash butt welding of large cross billets, this article presents the main circuit configuration of flash butt welding power system. The main circuit adopts thee-phase voltage controller with secondary rectification. Based on the Simulink environment,the main circuit model and dynamic model of resistance load with non-linear features are built. Research shows that the simulation model can really simulate the dynamic process of flash butt welding,the digital model and simulation of power system of flash butt welder are improved.

关 键 词：闪光焊机 电源系统 SIMULINK 动态电阻 数字化模型 

分 类 号：TG439.9[金属学及工艺—焊接]