Title :
Minimum voltage protections in variable speed wind farms
Author :
Ledesma, Pablo ; Usaola, Julio
Author_Institution :
Univ. Carlos II de Madrid, Spain
Abstract :
The transient behaviour of a power system with a doubly fed induction generator (DFIG) and a synchronous generator is studied. The DFIG is equipped successively with two minimum voltage protections, the first is a minimum voltage threshold, the second is a minimum voltage threshold followed by auto-reclosing of the generator. The evolution of output power, terminal voltage, rotor speed and system frequency is discussed. Results show how auto-reclosing of DFIGs could help to maintain voltage and frequency after a severe fault
Keywords :
asynchronous generators; machine control; power generation faults; power generation protection; power station control; power system transient stability; rotors; synchronous generators; torque control; variable speed gear; velocity control; wind power plants; doubly fed induction generator; generator auto-reclosing; minimum voltage protections; output power; power system transient behaviour; rotor speed; severe fault; synchronous generator; system frequency; terminal voltage; transient stability; variable speed wind farms; Induction generators; Mesh generation; Power generation; Power system protection; Power system transients; Rotors; Threshold voltage; Wind energy generation; Wind farms; Wind speed;
Conference_Titel :
Power Tech Proceedings, 2001 IEEE Porto
Conference_Location :
Porto
Print_ISBN :
0-7803-7139-9
DOI :
10.1109/PTC.2001.964840
