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A novel nonlinear control for stability improvement in HVDC light system

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5 Author(s)
Guo-jie Li ; Key Lab. of Power Syst., Tsinghua Univ., Beijing, China ; Siye Ruan ; Lin Peng ; Yuanzhang Sun
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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.

Published in:

Power Engineering Society General Meeting, 2005. IEEE

Date of Conference:

12-16 June 2005