Small-signal probabilistic stability of power systems considering the stochastic uncertainty of grid-connected wind farm

Author(s):  
S.Q. Bu ◽  
W. Du ◽  
H.F. Wang ◽  
Z. Chen ◽  
L.Y. Xiao ◽  
...  
2012 ◽  
Vol 26 (25) ◽  
pp. 1246012 ◽  
Author(s):  
J. L. DOMÍNGUEZ-GARCÍA ◽  
O. GOMIS-BELLMUNT ◽  
F. BIANCHI ◽  
A. SUMPER

Small signal stability analysis for power systems with wind farm interaction is presented. Power systems oscillation modes can be excited by disturbance or fault in the grid. Variable speed wind turbines can be regulated to reduce these oscillations, stabilising the power system. A power system stabiliser (PSS) control loop for wind power is designed in order to increase the damping of the oscillation modes. The proposed power system stabiliser controller is evaluated by small signal analysis.


Author(s):  
Xu Pei-Zhen ◽  
Lu Yong-Geng ◽  
Cao Xi-Min

Background: Over the past few years, the subsynchronous oscillation (SSO) caused by the grid-connected wind farm had a bad influence on the stable operation of the system and has now become a bottleneck factor restricting the efficient utilization of wind power. How to mitigate and suppress the phenomenon of SSO of wind farms has become the focus of power system research. Methods: This paper first analyzes the SSO of different types of wind turbines, including squirrelcage induction generator based wind turbine (SCIG-WT), permanent magnet synchronous generator- based wind turbine (PMSG-WT), and doubly-fed induction generator based wind turbine (DFIG-WT). Then, the mechanisms of different types of SSO are proposed with the aim to better understand SSO in large-scale wind integrated power systems, and the main analytical methods suitable for studying the SSO of wind farms are summarized. Results: On the basis of results, using additional damping control suppression methods to solve SSO caused by the flexible power transmission devices and the wind turbine converter is recommended. Conclusion: The current development direction of the SSO of large-scale wind farm grid-connected systems is summarized and the current challenges and recommendations for future research and development are discussed.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 34900-34908
Author(s):  
Bin Sun ◽  
Ping Ju ◽  
Mohammad Shahidehpour ◽  
Xueping Pan

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