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Author Haifeng Liu ♦ Zheng Xu ♦ Licheng Jin
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2003
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword HVDC transmission ♦ Tuning ♦ Control systems ♦ Modulation coding ♦ Rotors ♦ AC generators ♦ Power generation ♦ Mathematical model ♦ Damping ♦ Robustness
Abstract There may exist negative interactions among HVDC small signal modulation controllers in multi-infeed HVDC systems, so it is necessary to tune the parameters of the HVDC modulators coordinately. The problem is equivalent to solving a non-linear programming problem provided that the structures of the HVDC modulators are known. In this paper the objective function consists of the active power in the AC inter-ties and the rotor angles of all the generators. The parameters of the HVDC modulators can be optimized simultaneously with an inherent non-linear optimization module of NETOMAC. The presented parameter tuning procedure has itself included the non-linear nature of the AC/DC system and does not need to manually derive the explicit mathematical model of the whole system, so system simplification and linearization are not needed. A dual- infeed HVDC system with two lightly damped inter-regional oscillation modes is constructed to demonstrate the effectiveness of the presented parameter tuning procedure. Simulation results show that the optimized HVDC modulators can improve the damping of overall power oscillations in the dual-infeed HVDC system. Furthermore, the optimized modulators are robust to changes in system configurations, operating conditions and fault modes.
Description Author affiliation: Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China (Haifeng Liu; Zheng Xu; Licheng Jin)
ISBN 0780381106
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2003-09-07
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 550.15 kB
Page Count 6
Starting Page 35
Ending Page 40

Source: IEEE Xplore Digital Library