DocumentCode :
2601112
Title :
Modal analysis concerning the control mode of doubly-fed induction generator
Author :
Lin, Li ; Song, Liangliang ; Li, Wenxia ; Jing, Sheng
Author_Institution :
Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control, North China Electr. Power Univ., Beijing, China
fYear :
2009
fDate :
6-7 April 2009
Firstpage :
1
Lastpage :
6
Abstract :
The paper deals with the impact of wind power integration on power system small signal stability. The DFIG wind turbine consisting of a back-to-back PWM converter is introduced. Generator model is given first, ignoring the transient of stator. The converter control, shaft and pitch angle control diagrams are picked out for a detailed study subsequently. A case study is performed in part three, eigen-analysis of a modified IEEE 14 system is conducted considering the PF and VT control modes of wind farm. The pole map gives an intuitionistic view that DFIG introduces two oscillation modes related to the shaft and VAR controller model respectively. Eigen-structure depicts the electromechanical oscillation modes, and comparison of DFIG and SG case was studied which gives an overall conclusion that DFIG can have a favorable performance. Also the influence of increased penetration of wind power is examined.
Keywords :
PWM power convertors; asynchronous generators; machine control; modal analysis; power system simulation; power system stability; stators; wind turbines; IEEE 14 system; VAR controller model; back-to-back PWM converter; converter control; doubly-fed induction generator; electromechanical oscillation modes; generator mode; modal analysis; pitch angle control; power system small signal stability; wind power integration; wind turbine; Induction generators; Modal analysis; Power system analysis computing; Power system modeling; Power system stability; Power system transients; Pulse width modulation converters; Shafts; Wind energy; Wind turbines; Wind power; control mode; power system; small signal analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4934-7
Type :
conf
DOI :
10.1109/SUPERGEN.2009.5348110
Filename :
5348110
Link To Document :
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