ステップ応答設計とそのVCM制御への応用

抄録

A method for designing a sensitivity function by taking into consideration the step response is proposed. The target for the position control is generated by a feedback, instead of a feedforward controller, to improve the step response profile for perturbations in plant gain. The sampling rate for generating the target is slower than the rate for the position control to suppress the mechanical resonances at a high-frequency range. The method is applied to the hard disk drive (HDD) benchmark, and an improved step response is obtained.