Inverter for Tension Control Based on Fuzzy Inference

摘要

The present invention relates to an inverter for tension control based on fuzzy inference to minimize the tension fluctuation regardless of the material or the initial value of the material by determining the tension of the unwinder for material transfer according to the fuzzy rule, In the case of tension control using an inverter, the unwinder suppresses the torque of the motor as much as the torque generated by GD ² during acceleration, and reverses it during the deceleration, thereby correcting the torque by feedforward. To reduce the torque compensation burden on the Tension Controller, which needs to calculate the G (mass) and D (diameter) of the unwinder, so it needs information on the quality of the coil and the density of the points. In addition, the precise setting such as the initial radius is required, but according to the present invention, the tension torque of the unwinder depends on the amount of tension to be measured and the working speed. It is possible to minimize the tension fluctuation regardless of the exact information about the material or the initial value by determining as the fuzzy rule.