Add-on type loop shaping controller design for high precision track following in hard disc drives (HDDs)

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Add-on type loop shaping controller design for high precision track following in hard disc drives (HDDs)

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In this study, the authors present a systematic design method of the add-on type loop shaping scheme for high precision track following with plant modelling perturbations in HDDs. The proposed controller minimises the standard deviation of the position error signal (PES) of certain closed-loop transfer function while satisfying the robust stability condition in HDDs. Compared with the conventional H∞ control, the proposed method yields estimated plant states, which can be used for estimator-based controller design. Also, the proposed control method can be implemented in a parallel manner by performing a partial-fraction expansion for easy implementation. The effectiveness and practicality of our work is demonstrated through various experimental results.

Inspec keywords: transfer functions; hard discs; closed loop systems; robust control; disc drives; H∞ control; control system synthesis

Other keywords: high precision track following; PES; plant modelling perturbations; systematic design method; hard disc drives; partial-fraction expansion; estimator-based controller design; add-on type loop shaping controller design; H∞ control; standard deviation minimization; closed-loop transfer function; robust stability condition; position error signal; HDD

Subjects: Magnetic recording; Stability in control theory; Control system analysis and synthesis methods; Storage on moving magnetic media; Optimal control

References

    1. 1)
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    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
      • Djoudi, S.M., Charalambous, C.D., Repperger, D.W.: `A convex programming approach to the multiobjective ', Proc. American Control Conf., 8–10 May 2002, Anchorage, AK, p. 4315–4320.
    9. 9)
      • J.C. Doyle , B.A. Francis , A.R. Tannenbaum . (1992) Feedback control theory.
    10. 10)
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