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STATCOM-Based Damping Stabilizers For Power System Stability Enhancement
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| Author(s) |
M. A. Abido(sa), Ch. Weindl(de), G. Herold(de) |
| Abstract |
Power system stability enhancement via STATCOM-bas
ed stabilizers is thoroughly investigated in this paper. This study
presents a singular value decomposition (SVD) based approach to
assess and measure the controllability of the poorly damped
electromechanical modes by different control inputs of a
STATCOM. The Coordination among the proposed damping
stabilizers and the STATCOM internal AC and DC voltage
controllers has been taken into consideration. The design problem
of STATCOM-based stabilizers is formulated as an optimization
problem. For coordination purposes, a time domain-based
multiobjective function to improve the system stability as well as
AC and DC voltage regulation is proposed. Then, a real-coded
genetic algorithm (RCGA) is employed to search for optimal
stabilizer parameters. This aims to enhance both rotor angle
stability and voltage regulation of the power system. The proposed
stabilizers are tested on a weakly connected power system with
different loading conditions. The nonlinear simulation results
show the effectiveness and robustness of the proposed control
schemes over a wide range of loading conditions. |
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| Filename: | A122653 |
| Filesize: | 253.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-17 by System |
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