科研之友
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摘要
This paper proposes a strategy for the design of a track-seeking control system for a dual-stage hard disk drive (HDD) system. A proximate time optimal servomechanism (PTOS) has been widely used in primary actuator because of its simplicity and good performance. However, this strategy is unable to obtain the minimal settling time when the seeking length is long. We design the primary actuator controller by applying damping scheduling proximate time optimal servomechanism (DSPTOS) method which has faster settling time than the original PTOS does. Then, a parametric Lyapunov equation approach of low gain feedback to secondary actuator is designed to avoid input saturation. The simulation results show good short-span-seeking performance, as well as long-span-seeking performance with fast settling time.
- 出版日期2011-9
- 单位哈尔滨工业大学
