Robust Adaptive Control of Hard Disk Drives with Hysteresis Friction Nonlinearity in Mobile Applications ⋆
نویسندگان
چکیده
In this paper, robust adaptive NN control is investigated for small form factor hard disk drives which is mainly used in mobile applications. The hysteresis friction nonlinearity from the pivot bearing degrades the servo performance, as hard disk drive servo system operates in track-following mode. To deal with the effect of hysteresis friction nonlinearity, adaptive hysteresis friction compensation with RBFNN approximation is proposed. The effectiveness of the proposed adaptive control compared with the conventional proportional-integral-derivative (PID) control will be shown through comprehensive simulation results.
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