Design and parameter setting of high precision disk read control system
Aiming at the high precision control characteristics of computer disk reading,a high precision disk drive reading control system is designed.The system consists of excitation motor,support arm,magnetic head slide and rotating shaft.The motor drives the magnetic head slide to reach the designated track to read the flux information,and the position and speed of the magnetic head slide are used as the feedback quantity of the system.In view of the difficulty of precision disk(PD)controller parameter tuning,a differential evolution algorithm of adaptive adjustment factor was designed,RBF model was established,gradient information was identified by RBF online,and the two parameters of PD controller were adjusted.After tuning,the controller overjump was 0%,and the anti-interference performance was stronger.Better dynamic performance.
high precision control systemdisk drive read controlprecision disk controllerdisturbance analysis
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