TY - GEN
T1 - Intelligent robust controller design for a micro-actuator
AU - Vagia, Marialena
AU - Nikolakopoulos, George
AU - Tzes, Anthony
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - In this article the design of an intelligent robust controller for a Micro-Actuator (μ - A) is presented. The μ - A is composed of a micro-capacitor, whose one plate is clamped while its other flexible plate's motion is constrained by hinges acting as a combination of springs and dashpots. The distance of the plates is varied by the applied voltage between them. The dynamics of the plate's rigid-body motion results in an unstable, nonlinear system. The control structure is constructed from: a) a feedforward controller which stabilizes the micro-actuator around its nominal operating point, b) a robust PID controller whose gains are initially tuned via the utilization of Linear Matrix Inequalities (LMIs) and subsequently are switched according to the position of the upper plate, and c) an intelligent prefilter which appropriately shapes the reference signal. The resulting overall control scheme is applied to the non-linear model of the μ-A where simulation results are presented to prove the efficacy of the suggested scheme.
AB - In this article the design of an intelligent robust controller for a Micro-Actuator (μ - A) is presented. The μ - A is composed of a micro-capacitor, whose one plate is clamped while its other flexible plate's motion is constrained by hinges acting as a combination of springs and dashpots. The distance of the plates is varied by the applied voltage between them. The dynamics of the plate's rigid-body motion results in an unstable, nonlinear system. The control structure is constructed from: a) a feedforward controller which stabilizes the micro-actuator around its nominal operating point, b) a robust PID controller whose gains are initially tuned via the utilization of Linear Matrix Inequalities (LMIs) and subsequently are switched according to the position of the upper plate, and c) an intelligent prefilter which appropriately shapes the reference signal. The resulting overall control scheme is applied to the non-linear model of the μ-A where simulation results are presented to prove the efficacy of the suggested scheme.
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U2 - 10.1109/CDC.2005.1582320
DO - 10.1109/CDC.2005.1582320
M3 - Conference contribution
AN - SCOPUS:33847188526
SN - 0780395689
SN - 9780780395688
T3 - Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
SP - 1191
EP - 1196
BT - Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
T2 - 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
Y2 - 12 December 2005 through 15 December 2005
ER -