改进的AFC跳动取消及其对航迹跟踪的影响

Proceedings of the IECON'97 23rd International Conference on Industrial Electronics, Control, and Instrumentation (Cat. No.97CH36066) Pub Date : 1997-11-09 DOI:10.1109/IECON.1997.670915

Jingliang Zhang, S. Weerasooriya, T. Huang, T. Low

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引用次数: 11

摘要

本文研究了一种自适应前馈抵消(AFC)技术的设计和实现，以消除硬盘驱动器中的跳动。提出了对AFC的扩展，即修改后的AFC，以克服AFC方案的一些局限性。当设计用于补偿一个跳动频率时，改进的AFC可以消除预期谐波而不会放大相邻谐波。这简化了控制器的设计以消除多个谐波。此外，改进的AFC比AFC更鲁棒，因为它改善了相位和增益裕度。仿真和实验室实现结果显示了改进后的AFC的性能改进。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Modified AFC runout cancellation and its influence on track following

This paper investigates the design and implementation of an adaptive feedforward cancellation (AFC) technique to cancel runout in a hard disk drive. An extension to the AFC, the modified AFC, is proposed to overcome some of the limitations of the AFC scheme. When designed to compensate for one runout frequency, the modified AFC can eliminate the intended harmonic without amplifying the adjacent harmonics. This eases the design of a controller to cancel multiple harmonics. Also, the modified AFC is more robust than the AFC since it improves the phase and gain margins. Simulation and laboratory implementation results are presented to show the performance improvements of the proposed modified AFC.

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Proceedings of the IECON'97 23rd International Conference on Industrial Electronics, Control, and Instrumentation (Cat. No.97CH36066)

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