Title :
Improvement of fault ride through capability of wind farms using DFIG considering SDBR
Author :
Okedu, Kenneth E. ; Muyeen, S.M. ; Takahashi, Ryo ; Tamura, Junji
Author_Institution :
Dept. of Electr. & Electron. Eng., Kitami Inst. of Technol., Kitami, Japan
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
A new control strategy for improving fault ride-through capability of wind farms composed of fixed and variable speed wind generators has been proposed, in this study. In this new control scheme, a small series dynamic braking resistor (SDBR) is used in the stator circuit of doubly fed induction generator (DFIG) along with DC-chopper braking resistor. Simulation results show the advantages of the combined control strategy for the resumption of normal operation efficiently, with shortened possible operating time during grid fault in the multi-machine power system that connects wind farm.
Keywords :
asynchronous generators; braking; electric current control; fault currents; machine control; power generation control; power generation protection; power system faults; wind power plants; DC chopper braking resistor; DFIG; SDBR; control strategy; doubly fed induction generator; fault ride through capability; grid fault; multimachine power system; small series dynamic braking resistor; stator circuit; variable speed wind generator; wind farms; Circuit faults; Induction generators; Power system stability; Rotors; Wind farms; Wind turbines; Doubly fed induction generator; IGBT; Induction generator; Reactive power; Wind energy;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
