TY - GEN
T1 - Nanopositioning performance of MIMO MPC
AU - Rana, M. S.
AU - Pota, H. R.
AU - Petersen, I. R.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/8
Y1 - 2015/9/8
N2 - Model predictive control (MPC) refers to a class of computer control algorithms which is commonly used when tracking a reference trajectory is the primary goal. It minimizes the steady-state tracking error, increases the closed-loop bandwidth, and enables the controller to track a reference signal, the major requirements for nanopositioning applications. These capabilities of MPC controllers have motivated this research to improve the positioning performance of the piezoelectric tube scanner (PTS) for better imaging performance of an atomic force microscope (AFM). The multi-input multi-output (MIMO) form of the controller designed in this work compensates for the cross-coupling effect while the damping compensator augmented with the plant enhances its damping capability. To evaluate the performance improvement using the proposed control frame work, an experimental comparison with the existing AFM proportionalintegral (PI) controller is conducted which demonstrates that it enhances image quality for scanning speeds up to 125 Hz.
AB - Model predictive control (MPC) refers to a class of computer control algorithms which is commonly used when tracking a reference trajectory is the primary goal. It minimizes the steady-state tracking error, increases the closed-loop bandwidth, and enables the controller to track a reference signal, the major requirements for nanopositioning applications. These capabilities of MPC controllers have motivated this research to improve the positioning performance of the piezoelectric tube scanner (PTS) for better imaging performance of an atomic force microscope (AFM). The multi-input multi-output (MIMO) form of the controller designed in this work compensates for the cross-coupling effect while the damping compensator augmented with the plant enhances its damping capability. To evaluate the performance improvement using the proposed control frame work, an experimental comparison with the existing AFM proportionalintegral (PI) controller is conducted which demonstrates that it enhances image quality for scanning speeds up to 125 Hz.
UR - http://www.scopus.com/inward/record.url?scp=84957682654&partnerID=8YFLogxK
U2 - 10.1109/ASCC.2015.7244686
DO - 10.1109/ASCC.2015.7244686
M3 - Conference contribution
T3 - 2015 10th Asian Control Conference: Emerging Control Techniques for a Sustainable World, ASCC 2015
BT - 2015 10th Asian Control Conference
A2 - Selamat, Hazlina
A2 - Ramli, Hafiz Rashidi Haruna
A2 - Faudzi, Ahmad Athif Mohd
A2 - Rahman, Ribhan Zafira Abdul
A2 - Ishak, Asnor Juraiza
A2 - Soh, Azura Che
A2 - Ahmad, Siti Anom
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th Asian Control Conference, ASCC 2015
Y2 - 31 May 2015 through 3 June 2015
ER -