Abstract
The control system of PWM converter in hydraulic drive structure of the mold oscillation mechanism is used for prevent distortions of the mold movement. It is based on collecting data from accelerometers. This system can be useful for many metallurgical plants of Ukraine and overseas where continuous casting technology is used.
Highlights
Today more than 60 % of slab steel billets are cast on slab continuous casting machines (CCM)
The electric signal of negative feedback from the acceleration sensor on hydraulic cylinder is transmitted to the comparison element, which compares it with the reference signal
The microcontroller initializes the accelerometer, collects the acceleration data measured along the three axes, transmits the measured results into personal computer by the CAN interface
Summary
Today more than 60 % of slab steel billets are cast on slab continuous casting machines (CCM). Its operation is based on collecting data from accelerometers This system can be useful for many iron and steel works of Ukraine and overseas where continuous casting technology is used. This is a closed loop system with displacement stabilization, which includes hydraulic cylinder, servovalve, linear motor, PWM converter, regulator, comparison element, acceleration sensor, reference signal generator. The electric signal of negative feedback from the acceleration sensor on hydraulic cylinder is transmitted to the comparison element, which compares it with the reference signal Their difference is transmitted to the regulator, which controls the PWM converter of linear motor with permanent magnets. This information is obtained by a measurement system based on measuring the accelerations with MEMS accelerometers
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