A novel nonlinear control for stability improvement in HVDC light system

Author

Li, Guo-Jie ; Ruan, Siye ; Peng, Lin ; Sun, Yuanzhang ; Li, Xiong

Author_Institution

Key Lab. of Power Syst., Tsinghua Univ., Beijing, China

fYear

2005

Firstpage

837

Abstract

HVDC light is more and more concerned recently to improve power system stability due to controllability of its IGBT valve. In this paper, a model of HVDC light system is established and analyzed. And a nonlinear control to enhance HVDC Light system stability is proposed. The digital simulation results show that the proposed nonlinear control is effective to damp system oscillations and enhance system stability. Furthermore, digital simulation studies are conducted using the well-established PSCAD/EMTDC software package to show the effectiveness of the proposed nonlinear controller in damping oscillations when plow flow reversed.

Keywords

HVDC power transmission; control engineering computing; damping; insulated gate bipolar transistors; nonlinear control systems; oscillations; power engineering computing; power system stability; power transmission control; software packages; EMTDC; HVDC light system; IGBT valve; PSCAD; damp system oscillations; nonlinear control; power system stability; software package; stability improvement; Control systems; Controllability; Digital simulation; HVDC transmission; Insulated gate bipolar transistors; Lighting control; Nonlinear control systems; Power system modeling; Power system stability; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society General Meeting, 2005. IEEE

Print_ISBN

0-7803-9157-8

Type

conf

DOI

10.1109/PES.2005.1489221

Filename

1489221