Design of compensators for second order sliding modes

Author

Rosales, J. Antonio ; Boiko, I. ; Fridman, L.

Author_Institution

Dept. of Control Eng., Nat. Autonomous Univ. of Mexico (UNAM), Mexico City, Mexico

fYear

2010

fDate

26-28 June 2010

Firstpage

20

Lastpage

25

Abstract

In this paper, compensators for the Twisting and Sub-Optimal algorithms are designed. The compensation is aimed at the increase of the open-loop gain of the system with respect to the averaged variables (at low frequencies) achieved through the mechanism of the increase of the equivalent gains k_n of the controller nonlinearities. The describing function method is used for the development of the system model. An example of design and simulations are presented.

Keywords

control nonlinearities; control system synthesis; optimal control; variable structure systems; compensators design; controller nonlinearities; open loop gain; second order sliding modes; suboptimal algorithm; Algorithm design and analysis; Analytical models; Cities and towns; Control systems; Filters; Frequency domain analysis; Sliding mode control; System performance; Transfer functions; Variable structure systems; Compensation; discontinuous control; frequency domain analysis; sliding mode;

fLanguage

English

Publisher

ieee

Conference_Titel

Variable Structure Systems (VSS), 2010 11th International Workshop on

Conference_Location

Mexico City

Print_ISBN

978-1-4244-5829-5

Electronic_ISBN

978-1-4244-5830-1

Type

conf

DOI

10.1109/VSS.2010.5544683

Filename

5544683