Optimization of Head-Positioning Control in a Hard Disk Drive Using the RBode Plot
Optimization of Head-Positioning Control in a Hard Disk Drive Using the RBode Plot
复制标题
使用 RBode 图优化硬盘驱动器中的磁头定位控制
DOI：
10.1109/tie.2011.2143377
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发表时间：
2010
影响因子：
7.7
通讯作者：
W. Messner
中科院分区：
文献类型：
--
作者：
T. Atsumi;W. Messner
我们开发了一种用户友好的环路整形方法，采用鲁棒波德（RBode）图来优化硬盘驱动器（HDD）中的头部定位系统。RBode图将鲁棒性能标准表示为开环Bode图上的允许区域和禁止区域。使用RBode图，控制工程师可以轻松地设计控制器来抑制干扰，并仅使用频率响应数据来解释被控对象的扰动。不需要建立被控对象和扰动的传递函数模型。对硬盘跟踪控制的实验结果表明了该方法的有效性。
We have developed a user-friendly loop-shaping method employing the Robust Bode (RBode) plot for optimizing the head-positioning system in a hard disk drive (HDD). The RBode plot represents the robust performance criterion as allowable and forbidden regions on the open-loop Bode plot. Using the RBode plot, control engineers can easily design controllers that suppress disturbances and account for perturbations of the controlled object with frequency response data alone. There is no need to construct the transfer function models of the controlled object and of the disturbance. Experimental results for a track-following control in an HDD show the utility of the method.