A genetic approach to design a HVDC supplementary subsynchronous damping controller

A novel approach based on genetic search is presented for the design of a supplementary subsynchronous damping controller (SSDC) that is capable of damping out subsynchronous oscillation (SSO) in a parallel AC/DC transmission system. The problem of selecting the parameters of the SSDC is converted t...

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Bibliographic Details
Main Authors: Quanyuan Jiang, Shijie Cheng, Yijia Cao
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
Control systems
Damping
Eigenvalues and eigenfunctions
Genetic algorithms
HVDC transmission
Minimax techniques
Power system simulation
Shafts
Turbines
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Summary:A novel approach based on genetic search is presented for the design of a supplementary subsynchronous damping controller (SSDC) that is capable of damping out subsynchronous oscillation (SSO) in a parallel AC/DC transmission system. The problem of selecting the parameters of the SSDC is converted to a minimax optimization problem, which is solved by genetic algorithms with an eigenvalue-based objective function. The aim of the proposed control strategy is to choose the best controller parameters in such a way that the dominant eigenvalues of the closed-loop system are shifted to the left-hand side of s-plane as far as possible. Both the eigenvalue analysis and the detailed simulation results demonstrate the effectiveness of the proposed SSDC.
DOI:10.1109/ICPST.2002.1053598