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A control method for small utility connected large PV system to reduce frequency deviation using a minimal-order observer / Senjyu, Tomonobu in IEEE transactions on energy conversion, Vol. 24 N° 2 (Juin 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N° 2 (Juin 2009) . - pp. 520 - 528 Titre : A control method for small utility connected large PV system to reduce frequency deviation using a minimal-order observer Type de document : texte imprimé Auteurs : Senjyu, Tomonobu, Auteur ; Datta, Manoj, Auteur ; Yona, Atsushi, Auteur Année de publication : 2009 Article en page(s) : pp. 520 - 528 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Low-pass  filters;  observers;  photovoltaic  power  systems;  power  filters;  power  generation  control;  reduced  order  systems Résumé : In this paper, a minimal-order observer-based control method is proposed for small power utility connected photovoltaic (PV) systems. In the proposed method, the PV power is controlled according to load variation to minimize the frequency deviation. Load power and diesel power are estimated successfully by a minimal-order observer. From the estimated load power, load variation index is calculated. A second-order low-pass filter is used to produce PV base power from available maximum PV power. Then, the PV base power is added with the load variation index to generate the command PV power. The proposed method is compared with the method where maximum power point tracking control is used to produce the command PV power. From simulation results, it has been found that the proposed method is effective to reduce the frequency deviation of the utility and also delivers PV power near maximum PV power. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4957581&sortType%3Das [...] [article] A control method for small utility connected large PV system to reduce frequency deviation using a minimal-order observer [texte imprimé] / Senjyu, Tomonobu, Auteur ; Datta, Manoj, Auteur ; Yona, Atsushi, Auteur . - 2009 . - pp. 520 - 528. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 2 (Juin 2009) . - pp. 520 - 528 Mots-clés : Low-pass  filters;  observers;  photovoltaic  power  systems;  power  filters;  power  generation  control;  reduced  order  systems Résumé : In this paper, a minimal-order observer-based control method is proposed for small power utility connected photovoltaic (PV) systems. In the proposed method, the PV power is controlled according to load variation to minimize the frequency deviation. Load power and diesel power are estimated successfully by a minimal-order observer. From the estimated load power, load variation index is calculated. A second-order low-pass filter is used to produce PV base power from available maximum PV power. Then, the PV base power is added with the load variation index to generate the command PV power. The proposed method is compared with the method where maximum power point tracking control is used to produce the command PV power. From simulation results, it has been found that the proposed method is effective to reduce the frequency deviation of the utility and also delivers PV power near maximum PV power. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4957581&sortType%3Das [...]