Title :
Phase and gain margins in systems with SMC/HOSM
Author :
Rosales, J.A. ; Shtessel, Yuri ; Fridman, L.
Author_Institution :
Dept. of Control Eng. & Robot., Nat. Autonomous Univ. of Mexico (UNAM), Mexico City, Mexico
Abstract :
The purpose of this work is to identify stability margins in systems controlled by Sliding Mode Control (SMC)/High Order Sliding Modes (HOSM). The proposed stability margins characterize robustness of SMC/HOSM against parasitic dynamics and allow to certifying the performance of systems controlled by SMC/HOSM in different applications. An example with third order HOSM control algorithm is presented. The proposed technique is confirmed via phase and gain margin identification for systems with third order HOSM control.
Keywords :
variable structure systems; SMC/HOSM; gain margin identification; high order sliding modes; parasitic dynamics; phase margin; robustness; sliding mode control; stability margin; third order HOSM control algorithm; Algorithm design and analysis; Control systems; Equations; Heuristic algorithms; Limit-cycles; Stability criteria; Sliding-Mode control;
Conference_Titel :
American Control Conference (ACC), 2012
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4577-1095-7
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2012.6315269
