DocumentCode :
3107265
Title :
Closed loop bandwidth impact on doubly fed induction machine asymmetries detection based on rotor voltage signature analysis
Author :
Casadei, Domenico ; Filippetti, Fiorenzo ; Rossi, Claudio ; Stefani, Andrea
Author_Institution :
Dept. of Electr. Eng., Univ. of Bologna, Bologna
fYear :
2008
fDate :
1-4 Sept. 2008
Firstpage :
1
Lastpage :
5
Abstract :
This paper investigates the impact of the control system bandwidth on the detection of incipient faults in doubly fed induction generators used in wind turbines. In this application, the rotor is supplied by a static converter for the control of active and reactive power flows from the generator to the electrical grid. The Impact of the closed loop control system cannot be neglected when the detection of asymmetries in the machine are based on the signature analysis of electrical variables. An investigation of the behavior of faulty spectral components for different bandwidths of closed loop regulators is therefore necessary in order to evaluate the effectiveness of diagnostic indexes based on those variables. Simulation and experimental results are here presented to show the limits of two different approaches for fault detection. The first one based on current signature analysis and the second one based on rotor voltage signature analysis.
Keywords :
asynchronous machines; closed loop systems; electrical faults; power grids; reactive power control; rotors; wind turbines; asymmetries detection; closed loop bandwidth impact; closed loop control system; control system bandwidth; doubly fed induction machine; electrical grid; fault detection; reactive power control; rotor voltage signature analysis; static converter; wind turbines; Bandwidth; Control systems; Electric variables control; Electrical fault detection; Induction generators; Induction machines; Rotors; Static power converters; Voltage; Wind turbines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Universities Power Engineering Conference, 2008. UPEC 2008. 43rd International
Conference_Location :
Padova
Print_ISBN :
978-1-4244-3294-3
Electronic_ISBN :
978-88-89884-09-6
Type :
conf
DOI :
10.1109/UPEC.2008.4651644
Filename :
4651644
Link To Document :
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