Nonlinear control via exact linearization for hydrostatic transmission system with secondary regulation

Author

Liu, Haichang ; Jiang, Jihai ; Celestine, Okoye

Author_Institution

Inst. of Fluid Power Transmission & Control, Harbin Inst. of Technol.

fYear

2006

fDate

19-21 Jan. 2006

Lastpage

871

Abstract

The state-space equation of the hydrostatic transmission system with secondary regulation is derived and the exact linearization method of nonlinear system is proposed to transform the nonlinear system into a linear controllable one by coordinates transformation and state-space feedback. Based on the linearization model, the control law is achieved through optimal control theory of linear quadratic regulator. At the same time, the influences on system performance of weight matrix are discussed. Finally, the simulation results show that the system with designed controller is not only free from the system steady error and overshoot, but also has good robust ability

Keywords

hydrostatics; linearisation techniques; nonlinear control systems; optimal control; state feedback; state-space methods; exact linearization; hydrostatic transmission system; linear control system; linear quadratic regulator; nonlinear control system; state-space feedback; Control systems; Linear feedback control systems; Nonlinear control systems; Nonlinear equations; Nonlinear systems; Optimal control; Regulators; State feedback; System performance; Transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems and Control in Aerospace and Astronautics, 2006. ISSCAA 2006. 1st International Symposium on

Conference_Location

Harbin

Print_ISBN

0-7803-9395-3

Type

conf

DOI

10.1109/ISSCAA.2006.1627465

Filename

1627465