Disturbance rejection control of a HDD using mixed sensitivity approach
Disturbance rejection control of a HDD using mixed sensitivity approach
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使用混合灵敏度方法对 HDD 进行抗扰控制
DOI：
10.1109/amc.2002.1026950
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
A. Okuyama
中科院分区：
文献类型：
--
作者：
M. Kawafuku;K. Nonoyama;H. Hirai;M. Kobayashi;A. Okuyama
本文介绍了使用混合灵敏度方法设计硬盘驱动器控制器以抑制干扰。位置误差信号（PES）由可重复跳动（RRO）和不可重复跳动（NRRO）组成； NRRO 在频域中被分解为其贡献分量，即力扰动、机械振动等。为了模拟干扰信号的行为，分解信号被变换到时域。 H/sup /spl infin//控制设计可以有效消除此类干扰。混合灵敏度方法应用于 HDD 磁道跟踪控制的鲁棒控制器设计。我们将结果与传统控制器和建议控制器的结果进行比较。这表明了所提出的控制器设计方法的有效性。
This paper describes designing a controller of a hard disk drive for rejecting disturbances using mixed sensitivity approach. Position error signal (PES) consists of repeatable runout (RRO) and nonrepeatable runout (NRRO); NRRO is decomposed into its contributing components which are force disturbance, mechanical vibration, etc, in the frequency domain. To simulate the behavior of the disturbance signals, the decomposed signals are transformed to the time domain. The H/sup /spl infin// control design can eliminate such disturbances effectively. A mixed sensitivity approach is applied to the robust controller design of the track following control for the HDD. We compare the results with a conventional controller and the results with the proposed controller. It shows the validity of the proposed controller design method.