Title :
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
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;
Conference_Titel :
Power Engineering Society General Meeting, 2005. IEEE
Print_ISBN :
0-7803-9157-8
DOI :
10.1109/PES.2005.1489221
