针对弧焊逆变电源动态过程的特点 ,提出了基于MATLAB建立控制系统的非线性模型并进行了仿真分析。研究结果证明了其正确性 ,从而为弧焊逆变器和设计提供了有效的手段 Aiming at the characteristics of dynamic process of arc welding inverter, a nonlinear model of control system based on MATLAB was proposed and simulated. The result of the study proves its correctness, which provides an effective means for arc inverter and design