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Following control of hard disk drive using derivative state constrained optimal H2 controls
Author(s)
Date Issued
December 1, 2010
Type
Conference Paper
Abstract
The author presents following control of the hard disk drive using derivative state constrained optimal 2 H controls (H2ẋ). The study in this paper concern to the control amount of NRPE (non repeatable position error) and PES (position error signal) of track following control in the hard disk drive process by the effective method. The derivative state constrained optimal H2 control (H2ẋ) has been formulated to suppress the rate of changes of state variables. It is suitable for the oscillated system and able to be used in non linear system. Thus, the derivative state constrained optimal H2 control (H2ẋ) has been applied to track following control in the hard disk drive for increasing the accuracy of head positioning by decreasing the effect from oscillation, variation and non linearity characteristic in its system. Finally, the simulation results show that our proposed method can satisfy the design specifications of track following servo control system effectively. ©ICROS.
Citation
Iccas 2010 International Conference on Control Automation and Systems, 1275-1280, 2010