Transient States of the Multiscalar Controlled Double Fed Induction Generator in the Wind Farm

2011 ◽  
Author(s):  
P. Kolodziejek
Keyword(s):  
Wind Farm ◽  
Induction Generator ◽  
Transient States ◽  
Double Fed Induction Generator

Wind Power Fluctuation Smoothing of Double-Fed Induction Generator by Using Confining Factor

2014 ◽  
Vol 1070-1072 ◽  
pp. 327-335
Author(s):  
Bo Chen ◽  
Zheng Qiu Wu
Keyword(s):  
Wind Power ◽  
Wind Farm ◽  
Induction Generator ◽  
Power Fluctuation ◽  
Spinning Reserve ◽  
Reserve Requirements ◽  
System Operator ◽  
Wind Power Generator ◽  
Fluctuation Smoothing ◽  
Double Fed Induction Generator

A control strategy for the wind power smoothing is proposed based on the analysis of the wind power energy capture. In the proposed method, the power reference command of double-fed induction generator is adjusted by using a factor, which can be determined by the system operator according to the system spinning reserve requirements. The power reference command is used to control the wind power generator speed and the pitch angle of the wind turbine. The newly proposed strategy has some advantages compared with the proposed methods in literatures. Simulation test for a wind farm with 6×1.5MW DFIG verifies the proposed wind power fluctuation smoothing strategy.

Validation of a double fed induction generator wind turbine model and wind farm verification following the Spanish grid code

Wind Energy ◽  
2011 ◽  
Vol 15 (4) ◽  
pp. 645-659 ◽  
Author(s):  
Francisco Jiménez ◽  
Emilio Gómez-Lázaro ◽  
Juan Alvaro Fuentes ◽  
Angel Molina-García ◽  
Antonio Vigueras-Rodríguez
Keyword(s):  
Wind Turbine ◽  
Wind Farm ◽  
Induction Generator ◽  
Turbine Model ◽  
Double Fed Induction Generator

scholarly journals Research on Mechanism and Damping Control Strategy of DFIG-Based Wind Farm Grid-Connected System SSR Based on the Complex Torque Method

Electronics ◽  
2021 ◽  
Vol 10 (14) ◽  
pp. 1640
Author(s):  
Xiaotao Peng ◽  
Renjie Chen ◽  
Jicheng Zhou ◽  
Shiyao Qin ◽  
Ran Bi ◽  
...  
Keyword(s):  
Wind Speed ◽  
Wind Farm ◽  
Induction Generator ◽  
Rotor Speed ◽  
Speed Controller ◽  
Damping Control ◽  
Electrical Damping ◽  
Rotor Side Converter ◽  
The Impact ◽  
Double Fed Induction Generator

The subsynchronous resonance (SSR) of a double-fed induction generator (DFIG) and its suppression method are studied in this paper. The SSR may be aroused by the interaction between the double-fed induction generator and the series-compensated transmission lines. This paper proposes an expression of the electrical damping for assessing the SSR stability based on the complex torque method. The expression is derived by linearizing the DFIG model at the operating point. When the mechanical damping is neglected, the expression can be used to calculate whether the electrical damping is positive or negative to judge the SSR stability. The expression can quantitatively analyze the impact of the wind speed, the compensation degree, and the parameters of the rotor speed controller and the rotor-side converter controller on the SSR stability. Furthermore, a subsynchronous damping control (SDC) strategy is designed to suppress the SSR. The parameters of the SDC are optimized by particle swarm optimization (PSO) based on the electrical damping. Finally, the above research is verified by the PSCAD/EMTDC time-domain simulations. The results show that the stability of SSR decreases with the decrease of wind speed, the increase of series compensation degree, the increase of proportional coefficient, and the decrease of integral coefficient in rotor speed controller and rotor-side converter. The designed subsynchronous oscillation controller can suppress the SSR of a DFIG.

Overview of Subsynchronous Oscillation in Grid-connected Wind Farm

2020 ◽  
Vol 13 (7) ◽  
pp. 969-979
Author(s):  
Xu Pei-Zhen ◽  
Lu Yong-Geng ◽  
Cao Xi-Min
Keyword(s):  
Power Systems ◽  
Wind Turbine ◽  
Large Scale ◽  
Wind Farm ◽  
Wind Farms ◽  
Induction Generator ◽  
Future Research ◽  
Stable Operation ◽  
Subsynchronous Oscillation ◽  
Different Types

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.

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