Hα Robust Control of AC/DC Power Systems Based on Non-affine Nonlinear Model

Author

Tang, Honghai ; Li, Chunwen ; Liu, Yanhong

Author_Institution

Dept. of Autom., Tsinghua Univ., Beijing

fYear

2006

Firstpage

1

Lastpage

6

Abstract

The H_α robust controller design of AC/DC power system is investigated in this paper. Firstly, a novel fifth-order uncertain non-affine nonlinear model is put forward which describes the dynamics of both DC and AC systems. Then, an H_α controller is constructed by employing the feedback linearization technique and linear H_α theory. It is shown that the stability of the system is enhanced by the proposed firing angle control of the converter. The robust performance is improved as well. Simulation results illustrate the effectiveness of the proposed control strategy.

Keywords

H^infin control; feedback; linearisation techniques; nonlinear control systems; power system control; robust control; uncertain systems; AC/DC power systems; H_infin robust control; converter firing angle control; feedback linearization technique; fifth-order uncertain nonaffine nonlinear model; stability; Control systems; Linear feedback control systems; Linearization techniques; Nonlinear dynamical systems; Power system control; Power system dynamics; Power system modeling; Power systems; Robust control; Stability; AC/DC power system; HÂ¿ robust control; feedback linearization; non-affine nonlinear system;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 2006. PowerCon 2006. International Conference on

Conference_Location

Chongqing

Print_ISBN

1-4244-0110-0

Electronic_ISBN

1-4244-0111-9

Type

conf

DOI

10.1109/ICPST.2006.321606

Filename

4115900