@inbook{2b42dadd076840578ccac563190b200e,
title = "Case study on anti-windup compensation - Micro-actuator control in a hard-disk drive",
abstract = "This chapter demonstrates the use of anti-windup compensation in the control loop of a micro-actuator which is nominally controlled by a linear, discrete robust controller. The micro-actuator is part of a hard disk drive dual-stage servo-control system for positioning of the read/write head. The actuator inputs are constrained to retain the micro-actuator's displacement range of less than 0.4 mu m for mechanical protection. In the first part of the chapter, the anti-windup compensation scheme exemplifies an approach suggested by Weston & Postlethwaite. Here, the scheme is posed as a discrete full-order compensator and the closed loop analysis uses a generalized circle citerion approach. The design of the compensator is posed in LMI-form. In the second part of the chapter, it is shown how the linear micro-actuator control loop with anti-windup compensation is incorporated into the non-linear servo-control scheme for positioning of the read/write head in a hard disk drive.",
author = "G Herrmann and MC Turner and I Postlethwaite",
year = "2007",
language = "English",
isbn = "9781848000247",
series = "Lecture Notes in Control and Information Sciences",
publisher = "Springer London",
pages = "413 -- 430",
editor = "Turner, {M. C.} and Bates, {D. G.}",
booktitle = "Mathematical Methods for Robust and Nonlinear Control",
address = "United Kingdom",
}