TY - JOUR
T1 - Robust feedback linearization for nonlinear processes control
AU - Rubio, José de Jesús
N1 - Publisher Copyright:
© 2018 ISA
PY - 2018/3
Y1 - 2018/3
N2 - In this research, a robust feedback linearization technique is studied for nonlinear processes control. The main contributions are described as follows: 1) Theory says that if a linearized controlled process is stable, then nonlinear process states are asymptotically stable, it is not satisfied in applications because some states converge to small values; therefore, a theorem based on Lyapunov theory is proposed to prove that if a linearized controlled process is stable, then nonlinear process states are uniformly stable. 2) Theory says that all the main and crossed states feedbacks should be considered for the nonlinear processes regulation, it makes more difficult to find the controller gains; consequently, only the main states feedbacks are utilized to obtain a satisfactory result in applications. This introduced strategy is applied in a fuel cell and a manipulator.
AB - In this research, a robust feedback linearization technique is studied for nonlinear processes control. The main contributions are described as follows: 1) Theory says that if a linearized controlled process is stable, then nonlinear process states are asymptotically stable, it is not satisfied in applications because some states converge to small values; therefore, a theorem based on Lyapunov theory is proposed to prove that if a linearized controlled process is stable, then nonlinear process states are uniformly stable. 2) Theory says that all the main and crossed states feedbacks should be considered for the nonlinear processes regulation, it makes more difficult to find the controller gains; consequently, only the main states feedbacks are utilized to obtain a satisfactory result in applications. This introduced strategy is applied in a fuel cell and a manipulator.
KW - Control
KW - Nonlinear processes
KW - Robust feedback linearization technique
KW - Uniform stability
UR - http://www.scopus.com/inward/record.url?scp=85041603329&partnerID=8YFLogxK
U2 - 10.1016/j.isatra.2018.01.017
DO - 10.1016/j.isatra.2018.01.017
M3 - Artículo
C2 - 29397958
SN - 0019-0578
VL - 74
SP - 155
EP - 164
JO - ISA Transactions
JF - ISA Transactions
ER -