An Optimized Crowbar for DFIG with AHP Algorithm under Grid Faults Condition
Publish place: 26th International Power System Conference
Publish Year: 1390
Type: Conference paper
Language: English
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Document National Code:
PSC26_026
Index date: 17 March 2012
An Optimized Crowbar for DFIG with AHP Algorithm under Grid Faults Condition abstract
In this paper a theoretical method of calculating optimal resistances for crowbar of doubly fed induction generator (DFIG) under asymmetrical faults 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 and 2 phase. A typical relative importance is selected and optimization is carried out. The optimized crowbars are used to improve the stator voltage during the fault and the faster coming back after the fault and it will be shown that one could use one optimized crowbar for single and 2 phase fault simultaneously.
An Optimized Crowbar for DFIG with AHP Algorithm under Grid Faults Condition Keywords:
An Optimized Crowbar for DFIG with AHP Algorithm under Grid Faults Condition authors
Alireza Zohoori
Electrical Engineering Dept. Amirkabir University of- Technology- Tehran- Iran
Vahid Mortezapour
Electrical Engineering Dept-University of Tehran
R Shafaee
Electrical Engineering Dept-Iran University of Science-and Technology-Tehran, Iran
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