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Power Flow Control and Stability Improvement of Connecting an Offshore Wind Farm to a One-Machine Infinite-Bus System Using a Static Synchronous Series Compensator

机译:使用静态同步串联补偿器将海上风电场连接到一机无穷大系统的潮流控制和稳定性改进

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摘要

This paper presents the stability improvement and power-flow control results of a DFIG-based offshore wind farm (OWF) connected to a one-machine infinite-bus (OMIB) system using a static synchronous series compensator (SSSC). An oscillation damping controller (ODC) of the proposed SSSC is designed by using modal control theory to render proper damping to the dominant mode of the studied synchronous generator (SG). A frequency-domain approach based on a linearized system model using eigenvalue analysis is accomplished. A time-domain scheme based on a nonlinear system model subject to a disturbance is also performed. It can be concluded from the simulation results that the proposed SSSC joined with the designed ODC can effectively improve the stability of the studied OMIB system with an OWF under various disturbances. The inherent low-frequency oscillations of the OMIB system can also be effectively suppressed by the proposed control scheme.
机译:本文介绍了使用静态同步串联补偿器(SSSC)连接到单机无限母线(OMIB)系统的基于DFIG的海上风电场(OWF)的稳定性改进和功率流控制结果。利用模态控制理论设计了所提出的SSSC的振动阻尼控制器(ODC),以对所研究的同步发电机(SG)的主导模式进行适当的阻尼。基于特征值分析的线性化系统模型实现了频域方法。还执行了基于受干扰的非线性系统模型的时域方案。从仿真结果可以得出结论,所提出的SSSC与设计的ODC结合可以有效地提高所研究的带OWF的OMIB系统在各种扰动下的稳定性。所提出的控制方案还可以有效地抑制OMIB系统固有的低频振荡。

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