The model reference adaptive control method of submerged arc welding power supply system

摘要

According to the Mathematical model of control system for submerged arc welding power source, using the model reference adaptive control method to control a given voltage including two kinds of variables wire feeding speed to achieve constant current power supply current characteristic and the stability of arc length. With super stability theory, the control system based on Matlab/Simulink platform and the simulation experiment. And according to the experimental results under submerged arc welding power supply control system with PID algorithm were compared. The conclusion shows that the model reference adaptive control method can well guarantee the power supply current cross flow characteristics and stability of the arc length, and ensure the welding effect compared with the traditional PID control.