TY - JOUR
T1 - Adaptive fuzzy controller for a precision positioner using electro-magnetic actuator
AU - Jou, Chang Han
AU - Lu, Jian Shiun
AU - Chen, Mei Yung
PY - 2012/3
Y1 - 2012/3
N2 - This paper proposes a new type of non-conventional electro-magnetic actuator (EMA) for a two-dimensional micro-positioning platform. It is a repulsive magnetic system consisting of a motion pad and four active coils. Motion pad is caused by the repelling force between the coils and the permanent magnets to the pad. First, exploring the characteristics of the magnetic forces between PMs and electromagnetic coils, the general two-dimensional dynamic model of this system was derived and analyzed. Next, an adaptive fuzzy controller is developed to deal with the unknown parameters to compensate the friction problem of precision positioning. Finally, extensive experimental results demonstrate satisfactory performances including regulation accuracy, tracking performance, and control stiffness for the system.
AB - This paper proposes a new type of non-conventional electro-magnetic actuator (EMA) for a two-dimensional micro-positioning platform. It is a repulsive magnetic system consisting of a motion pad and four active coils. Motion pad is caused by the repelling force between the coils and the permanent magnets to the pad. First, exploring the characteristics of the magnetic forces between PMs and electromagnetic coils, the general two-dimensional dynamic model of this system was derived and analyzed. Next, an adaptive fuzzy controller is developed to deal with the unknown parameters to compensate the friction problem of precision positioning. Finally, extensive experimental results demonstrate satisfactory performances including regulation accuracy, tracking performance, and control stiffness for the system.
KW - Adaptive fuzzy controller
KW - Electro-magnetic actuator
KW - Precision positioning
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M3 - Article
AN - SCOPUS:84860325782
SN - 1562-2479
VL - 14
SP - 110
EP - 117
JO - International Journal of Fuzzy Systems
JF - International Journal of Fuzzy Systems
IS - 1
ER -