DocumentCode :
2601242
Title :
Mining and utilization of reactive power capability of doubly fed induction generator systems for wind turbines
Author :
Huang Ya-feng ; Yan Gan-gui ; Yan, Gan-Gui ; Mu Gang ; Zhang Zhen-qing ; Xu Fei ; Zhang Cheng-xin
Author_Institution :
North China Electr. Power Univ., Beijing, China
fYear :
2009
fDate :
6-7 April 2009
Firstpage :
1
Lastpage :
5
Abstract :
In practical operation, the DFIG systems have large free margin of power capacity which can be used for reactive power adjustment, which is often neglected. Mining and utilization of the reactive power capability of doubly fed induction generator systems for wind turbines are investigated in this paper. A mathematical model for steady state performance of DFIG WT is presented to analysis of the power characteristic and its control in DFIG systems. The limiting range of reactive power capacity of DFIG and physical limitations in reactive power production are derived in details. A simulation example that dispersing the DFIG WT at the end of an distribution network is given, of which reactive power control strategy, load variation and the change of wind speed are also taken into account. In this case, the voltage level of access point is improved, which demonstrates the validity of utilization of reactive power capability of DFIG WT as an additional continuous reactive power source for utilities.
Keywords :
asynchronous generators; distribution networks; mining; reactive power control; wind power plants; wind turbines; DFIG systems; distribution network; doubly fed induction generator systems; mining; reactive power capability; reactive power control strategy; reactive power production; steady state performance; wind turbines; Control system synthesis; Induction generators; Load management; Mathematical model; Performance analysis; Production; Reactive power; Reactive power control; Steady-state; Wind turbines; Doubly fed induction generator (DFIG); reactive power; wind power generation;
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.2009.5348117
Filename :
5348117
Link To Document :
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