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 ...
详细信息
ISBN:
(纸本)9781467397148
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.
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 s...
详细信息
ISBN:
(纸本)9781467397155
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 *** super stability theory,the control system based on Matlab/Simulink platform and the simulation *** according to the experimental results under submerged arc welding power supply control system with PID algorithm were *** 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.
The development of many advanced technology products depends entirely on its components which tolerances or dimensions need to meet the micro-or even nanotechnology range requirements. It is generally accepted that po...
详细信息
ISBN:
(纸本)9781479925650
The development of many advanced technology products depends entirely on its components which tolerances or dimensions need to meet the micro-or even nanotechnology range requirements. It is generally accepted that position servo controller of machine tool is the main concern in achieving the high machining precision. Nanometric-level positioning accuracy of the ultra precision machine tool is difficult to obtain, particularly with parameters uncertainties, external nonlinear disturbances. In order to compensate above disadvantages, a model reference adaptive control method was proposed to adjust the important and main position loop of the three closed-loop control system which was designed mainly for regulating mechanical transmission modules and counterbalancing internal and external disturbances. In addition, the other two close loops were built in adjusting the acceleration and velocity of the electric drive system respectively that aimed to achieve the fast and precise response and increase dynamic stiffness. The results illustrated satisfactory performances in steady state error, load capability, high rapidity and so on.
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