طراحي كنترل چندمتغيره ∞H براي فرآيند جوش قوس با پوشش گاز محافظ

MIMO H∞ control design for gas metal arc welding (GMAW) process

One of the most important processes in many industrial and manufacturing operations is Gas Metal Arc Welding (GMAW) considered as a nonlinear multivariable system mostly involved in high interactions, and the control of this system is the main research area of many studies. In this study, a H∞ controller was designed to control GMAW process and reduce effects of uncertainty and interactions on the system with selection of appropriate weights for a better tracking, less energy consumption and limited output. The appropriate controller ensures the robust and performance stability in the presence of parametric uncertainty and improves control signal.

One of the most important processes in many industrial and manufacturing operations is Gas Metal Arc Welding (GMAW) considered as a nonlinear multivariable system mostly involved in high interactions, and the control of this system is the main research area of many studies. In this study, a H∞ controller was designed to control GMAW process and reduce effects of uncertainty and interactions on the system with selection of appropriate weights for a better tracking, less energy consumption and limited output. The appropriate controller ensures the robust and performance stability in the presence of parametric uncertainty and improves control signal.