Abstract
In order to solve the problem of severe tension fluctuation in the winding process of strip stator, a tension control system is built with Micro-Controller Unit as controller, encoder as sensor and servo motor as actuator. Besides the employment of traditional PID feedback control, a feed-forward control link is introduced at the same time. The simulation results of PID control with and without feed-forward are compared. In addition, experiments under different working conditions are also carried out. Specifically, when the desired tension value is set at 500g along the 0.35mm enameled wire that being wound onto a strip stator at 900r/min, the tension overshoot and swing angle fluctuation are 0.88° and ±0.53° respectively. It is also found that, rather than the speed of the frame, it is the tension that significantly effects the control performance in the proposed system.
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