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A novel scheme for rapid tracking of maximum power point in wind energy generation systems / Agarwal, V. in IEEE transactions on energy conversion, Vol. 25 N° 1 (Mars 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25 N° 1 (Mars 2010) . - pp. 228 - 236 Titre : A novel scheme for rapid tracking of maximum power point in wind energy generation systems Type de document : texte imprimé Auteurs : Agarwal, V., Auteur ; Aggarwal, R. K., Auteur ; Patidar, P., Auteur Année de publication : 2010 Article en page(s) : pp. 228 - 236 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : matrix  convertors;  power  grids;  wind  power Résumé : This paper presents a novel maximum power point (MPP) tracking (MPPT) algorithm for grid-connected wind energy generation systems (WEGS). This is a rapid tracking algorithm that uses the fact that the value of ????,?? an intermediate variable, especially defined for the purpose, remains constant ( =??MPP ) for a given WEGS at the MPP irrespective of the wind velocity. The value of ??MPP is known in advance. The algorithm works in two stages. In the first stage, it uses large steps to quickly drive the operating point to lie within a narrow band with limits ??max and ??min. In the second stage, exact MPP is tracked using the ??perturb and observe?? method. No extra hardware or measurements (sensors) are required compared to the existing algorithms. Hence, the cost is not increased. Application of the proposed algorithm to an example WEGS shows that the time taken by the system to reach MPP is much smaller compared to most of the existing algorithms. A prototype matrix converter has been developed for grid interfacing and the proposed MPPT scheme has been implemented in conjunction with Venturini and space-vector-modulation-based switching schemes. All the results of this study are presented. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5350683&sortType%3Das [...] [article] A novel scheme for rapid tracking of maximum power point in wind energy generation systems [texte imprimé] / Agarwal, V., Auteur ; Aggarwal, R. K., Auteur ; Patidar, P., Auteur . - 2010 . - pp. 228 - 236. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25 N° 1 (Mars 2010) . - pp. 228 - 236 Mots-clés : matrix  convertors;  power  grids;  wind  power Résumé : This paper presents a novel maximum power point (MPP) tracking (MPPT) algorithm for grid-connected wind energy generation systems (WEGS). This is a rapid tracking algorithm that uses the fact that the value of ????,?? an intermediate variable, especially defined for the purpose, remains constant ( =??MPP ) for a given WEGS at the MPP irrespective of the wind velocity. The value of ??MPP is known in advance. The algorithm works in two stages. In the first stage, it uses large steps to quickly drive the operating point to lie within a narrow band with limits ??max and ??min. In the second stage, exact MPP is tracked using the ??perturb and observe?? method. No extra hardware or measurements (sensors) are required compared to the existing algorithms. Hence, the cost is not increased. Application of the proposed algorithm to an example WEGS shows that the time taken by the system to reach MPP is much smaller compared to most of the existing algorithms. A prototype matrix converter has been developed for grid interfacing and the proposed MPPT scheme has been implemented in conjunction with Venturini and space-vector-modulation-based switching schemes. All the results of this study are presented. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5350683&sortType%3Das [...]