Title :
An optimized crowbar for DFIG with AHP algorithm under single phase fault
Author :
Zohoori, Alireza ; Moghani, J.S. ; Fathi, S.H. ; Mortezapour, Vahid
Author_Institution :
Electr. Eng. Dept., Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
An analytical method of calculating an optimal resistance for crowbar of doubly fed induction generator (DFIG) under single phase fault is proposed by taking into account the impact of crowbar on reactive power, rotor current, voltage and electrical torque respectively. Finding the optimal resistance value for the crowbar is based on Analytic Hierarchy Process (AHP) in this paper, of the DFIG during the single phase fault. A typical relative importance is selected and optimization is carried out. This optimized crowbar is used to improve the stator voltage during the fault and the faster coming back after the fault.
Keywords :
asynchronous generators; decision making; optimisation; reactive power; AHP algorithm; DFIG; analytic hierarchy process agorithm; doubly fed induction generator; electrical torque; optimal resistance calculation; optimized crowbar; reactive power; rotor current; single phase fault; Circuit faults; Reactive power; Resistance; Rotors; Stators; Torque; Wind turbines; DFIG; Electrical torque; Pareto curve; Reactive power; crowbar; relative importance; rotor voltage;
Conference_Titel :
Environment and Electrical Engineering (EEEIC), 2011 10th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-8779-0
DOI :
10.1109/EEEIC.2011.5874789
