Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10401766 | Electric Power Systems Research | 2005 | 8 Pages |
Abstract
This paper proposes an approach to simultaneously designing multiple decentralized nonlinear optimal excitation controllers to achieve rotor angle stability improvement and good trade-off between voltage regulation and oscillation damping in multimachine power systems. The approach includes: (1) building a novel state-space mathematical model based on nonlinear feedback compensation, (2) properly formulating the control problem and (3) developing a more quick and accurate algorithm to solve the problem. Case studies are fulfilled in a two-area four-machine power system to verify the effectiveness of the approach. Digital simulation results show that the controllers designed with the proposed method gain much priority over traditional AVR/PSS in damping power oscillation, improving voltage regulation and enhancing transfer capability.
Related Topics
Physical Sciences and Engineering
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Energy Engineering and Power Technology
Authors
Xiaorong Xie, Wenjin Cui, Yingduo Han,