Title :
Frequency domain analysis of second order sliding modes
Author :
Boiko, I. ; Fridman, L.
Abstract :
A number of second order sliding mode (SOSM) control algorithms are analyzed in the frequency domain via the describing function method. It is shown that in the presence of parasitic dynamics the system driven by a SOSM algorithm would exhibit chattering. The mechanism of chattering generation is analyzed. Further, it is substantiated why chattering is an inherent feature of the sliding mode principle and therefore unavoidable
Keywords :
control nonlinearities; describing functions; frequency-domain analysis; variable structure systems; chattering generation; describing function; frequency domain analysis; parasitic dynamics; second order sliding mode control algorithms; Actuators; Algorithm design and analysis; Control systems; Convergence; Frequency domain analysis; Motion analysis; Motion control; Relays; Samarium; Sliding mode control;
Conference_Titel :
American Control Conference, 2006
Conference_Location :
Minneapolis, MN
Print_ISBN :
1-4244-0209-3
Electronic_ISBN :
1-4244-0209-3
DOI :
10.1109/ACC.2006.1657580
