TY - GEN
T1 - A linear matrix inequality approach to initial value compensation for mode switching control in hard disk drive servo systems
AU - Doh, Tae Yong
AU - Ryoo, Jung Rae
PY - 2008
Y1 - 2008
N2 - In mode switching control from the track seeking or the track jump to the track-following control of hard disk drives, initial values of the feedback controller are tuned in order to improve the transient response. This paper presents a simple initial value compensation (IVC) method using linear matrix inequalities (LMIs) instead of the conventional method using a Lyapunov equation. The LMI includes conditions for improving the transient response performance in the ℒ2-norm sense and minimizing the H ∞norm of the closed loop system to reduce the controlled outputs such as plant states, tracking error, control efforts, and so on. Optimal initial values of the controller are obtained by solving an optimization problem with constraints represented by only one LMI. Finally, the feasibility is verified by a series of simulations.
AB - In mode switching control from the track seeking or the track jump to the track-following control of hard disk drives, initial values of the feedback controller are tuned in order to improve the transient response. This paper presents a simple initial value compensation (IVC) method using linear matrix inequalities (LMIs) instead of the conventional method using a Lyapunov equation. The LMI includes conditions for improving the transient response performance in the ℒ2-norm sense and minimizing the H ∞norm of the closed loop system to reduce the controlled outputs such as plant states, tracking error, control efforts, and so on. Optimal initial values of the controller are obtained by solving an optimization problem with constraints represented by only one LMI. Finally, the feasibility is verified by a series of simulations.
KW - ℒ norm
KW - Digital control
KW - H norm
KW - Hard disk drive servo
KW - Initial value compensation
KW - Linear matrix inequality
KW - Mode switching control
KW - Optimization
UR - https://www.scopus.com/pages/publications/58149094364
U2 - 10.1109/ICCAS.2008.4694500
DO - 10.1109/ICCAS.2008.4694500
M3 - Conference contribution
AN - SCOPUS:58149094364
SN - 9788995003893
T3 - 2008 International Conference on Control, Automation and Systems, ICCAS 2008
SP - 1692
EP - 1695
BT - 2008 International Conference on Control, Automation and Systems, ICCAS 2008
T2 - 2008 International Conference on Control, Automation and Systems, ICCAS 2008
Y2 - 14 October 2008 through 17 October 2008
ER -