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Power modulation of photovoltaic generator for frequency control of power system / Nagaoka, Naoto in IEEE transactions on energy conversion, Vol. 24 N° 4 (Décembre 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N° 4 (Décembre 2009) . - pp. 943 - 949 Titre : Power modulation of photovoltaic generator for frequency control of power system Type de document : texte imprimé Auteurs : Nagaoka, Naoto, Auteur ; Takayama, Satoshi, Auteur ; Satoh, Hiroyuki, Auteur Année de publication : 2010 Article en page(s) : pp. 943 - 949 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Frequency  control;  photovoltaic  power  systems;  power  system  control Résumé : This paper describes power modulation of a photovoltaic (PV) generator for frequency regulation. The generator has a small electric double-layer capacitor. The capacitor absorbs rapid fluctuations of PV generation, and allows the generator to change its output at a limited ramp rate. The capacitor voltage is kept at a specified value to maintain adequate energy storage. The generator output is modulated in proportion to the frequency deviation. The responses to step and periodic changes of the frequency are examined. The voltage control is modified so as not to affect the frequency control. It is shown by numerical simulations that the PV generator cooperates well with conventional generators. Some experimental results are demonstrated to validate the proposed method. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5233921&sortType%3Das [...] [article] Power modulation of photovoltaic generator for frequency control of power system [texte imprimé] / Nagaoka, Naoto, Auteur ; Takayama, Satoshi, Auteur ; Satoh, Hiroyuki, Auteur . - 2010 . - pp. 943 - 949. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 4 (Décembre 2009) . - pp. 943 - 949 Mots-clés : Frequency  control;  photovoltaic  power  systems;  power  system  control Résumé : This paper describes power modulation of a photovoltaic (PV) generator for frequency regulation. The generator has a small electric double-layer capacitor. The capacitor absorbs rapid fluctuations of PV generation, and allows the generator to change its output at a limited ramp rate. The capacitor voltage is kept at a specified value to maintain adequate energy storage. The generator output is modulated in proportion to the frequency deviation. The responses to step and periodic changes of the frequency are examined. The voltage control is modified so as not to affect the frequency control. It is shown by numerical simulations that the PV generator cooperates well with conventional generators. Some experimental results are demonstrated to validate the proposed method. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5233921&sortType%3Das [...]

Ramp-rate control of photovoltaic generator with electric double-layer capacitor / Nagaoka, Naoto 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. 465 - 473 Titre : Ramp-rate control of photovoltaic generator with electric double-layer capacitor Type de document : texte imprimé Auteurs : Nagaoka, Naoto, Auteur ; Satoh, Hiroyuki, Auteur ; Takayama, Satoshi, Auteur Année de publication : 2009 Article en page(s) : pp. 465 - 473 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Electrolytic  capacitors;  photovoltaic  power  systems;  power  generation  control Résumé : This paper describes ramp rate control of a photovoltaic (PV) generator with an electric double-layer capacitor. The capacitor absorbs rapid fluctuations of PV generation, and allows the generator to change its output at a limited ramp rate. The output is mainly determined by a moving average of the PV generation, but the capacitor voltage is also counted to keep the voltage at a specified value, and accordingly, to make the capacitor small. An expression for the capacitor size is derived. The feedback gain of the capacitor voltage is also examined to maintain enough energy storage in the capacitor. Some experiments are executed to demonstrate and validate the proposed method. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4957577&sortType%3Das [...] [article] Ramp-rate control of photovoltaic generator with electric double-layer capacitor [texte imprimé] / Nagaoka, Naoto, Auteur ; Satoh, Hiroyuki, Auteur ; Takayama, Satoshi, Auteur . - 2009 . - pp. 465 - 473. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 2 (Juin 2009) . - pp. 465 - 473 Mots-clés : Electrolytic  capacitors;  photovoltaic  power  systems;  power  generation  control Résumé : This paper describes ramp rate control of a photovoltaic (PV) generator with an electric double-layer capacitor. The capacitor absorbs rapid fluctuations of PV generation, and allows the generator to change its output at a limited ramp rate. The output is mainly determined by a moving average of the PV generation, but the capacitor voltage is also counted to keep the voltage at a specified value, and accordingly, to make the capacitor small. An expression for the capacitor size is derived. The feedback gain of the capacitor voltage is also examined to maintain enough energy storage in the capacitor. Some experiments are executed to demonstrate and validate the proposed method. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4957577&sortType%3Das [...]