Analysis on Sub-Synchronous Oscillation Associated with Wind Farms Based on Direct-Driven Wind Generators

@article{An2018AnalysisOS,
  title={Analysis on Sub-Synchronous Oscillation Associated with Wind Farms Based on Direct-Driven Wind Generators},
  author={Zhi An and Chen Shen and Zetian Zheng and Feng Liu and Xuemin Zhang and Xiaoqing Chang and Wei Wei},
  journal={2018 37th Chinese Control Conference (CCC)},
  year={2018},
  pages={1282-1286}
}
  • Z. An, Chen Shen, Wei Wei
  • Published 1 July 2018
  • Physics
  • 2018 37th Chinese Control Conference (CCC)
Recently, several literatures reported that sub-synchronous oscillation (SSO) events occurred in wind farms based on direct-driven wind generators (DDWGs). This paper focuses on whether a wind farm consists of only DDWGs would bring an SSO. First, a small-signal model of the DDWG-based wind farm is proposed. Eigen-analysis indicates that there are natural modes with sub-synchronous frequency; however, their damping ratios are significantly large under specific control parameters. Further, the… 
Towards Distributed Stability Analytics of Dynamic Power Systems: A Phasor-Circuit Theory Perspective
TLDR
Inspired by the work of Brayton and Moser in nonlinear RLC circuit, the concept of voltage potential to phasor circuits is extended and offered into the distributed stability analytics in power systems and it is shown that under certain distributed passivity-like conditions the system-wide stability can be ensured.

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