Contribution to the Fault Diagnosis of a Doubly Fed Induction Generator for a Closed-loop Controlled Wind Turbine System Associated with a Two-level Energy Storage System

Type : Publication
Auteur(s) :  Issam Attoui, Amar Omeiri
Année :  2014
Domaine : Electrotechnique
Revue : Electric Power Components and Systems
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  Wind energy conversion systems, adaptive Fast Fourier transform, doubly fed induction generator, fault detection and diagnosis, fractional-order control, two-level energy storage system

Résumé : 

In this article, a contribution to the fault diagnosis of adoubly fed induction generator for a closed-loop controlled wind turbinesystem associated with a two-level energy storage system usingan on-line fault diagnostic technique is proposed. This technique isproposed to detect the rotor fault in the doubly fed induction generatorunder non-stationary conditions based on the spectral analysis of statorcurrents of the doubly fed induction generator by an adaptive fastFourier transform algorithm. Furthermore, to prevent system deterioration,a fractional-order controller with a simple design method isused for the control of the whole wind turbine system. The fractionalordercontroller ensures that the system is stable in both healthy andfaulty conditions. Additionally, to improve the production capacityunder wind speed fluctuations and grid demand changes, a two-levelenergy storage system consisting of a supercapacitor bank and leadacidbatteries is proposed. The obtained simulation results show thatthe objectives of the fault diagnosis procedure and control strategyare reached.