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Modulation and control of three-phase paralleled Z-source inverters for distributed generation applications / Vilathgamuwa, D. M. in IEEE transactions on energy conversion, Vol. 24 N°1 (Mars 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N°1 (Mars 2009) . - pp. 173 - 183 Titre : Modulation and control of three-phase paralleled Z-source inverters for distributed generation applications Type de document : texte imprimé Auteurs : Vilathgamuwa, D. M., Auteur ; Gajanayake, C.J., Auteur ; Poh Chiang Loh, Auteur Année de publication : 2009 Article en page(s) : pp. 173 - 183 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Control  system  synthesis;  distributed  power  generation;  invertors;  power  distribution  control;  power  grids Résumé : This paper presents a modulation and controller design method for paralleled Z-source inverter systems applicable for alternative energy sources like solar cells, fuel cells, or variable-speed wind turbines with front-end diode rectifiers. A modulation scheme is designed based on simple shoot-through principle with interleaved carriers to give enhanced ripple reduction in the system. Subsequently, a control method is proposed to equalize the amount of power injected by the inverters in the grid-connected mode and also to provide reliable supply to sensitive loads on-site in the islanding mode. The modulation and controlling methods are proposed to have modular independence so that redundancy, maintainability, and improved reliability of supply can be achieved. The performance of the proposed paralleled Z-source inverter configuration is validated with simulations carried out using Matlab/Simulink/Powersim. Moreover, a prototype is built in the laboratory to obtain the experimental En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4783109&sortType%3Das [...] [article] Modulation and control of three-phase paralleled Z-source inverters for distributed generation applications [texte imprimé] / Vilathgamuwa, D. M., Auteur ; Gajanayake, C.J., Auteur ; Poh Chiang Loh, Auteur . - 2009 . - pp. 173 - 183. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N°1 (Mars 2009) . - pp. 173 - 183 Mots-clés : Control  system  synthesis;  distributed  power  generation;  invertors;  power  distribution  control;  power  grids Résumé : This paper presents a modulation and controller design method for paralleled Z-source inverter systems applicable for alternative energy sources like solar cells, fuel cells, or variable-speed wind turbines with front-end diode rectifiers. A modulation scheme is designed based on simple shoot-through principle with interleaved carriers to give enhanced ripple reduction in the system. Subsequently, a control method is proposed to equalize the amount of power injected by the inverters in the grid-connected mode and also to provide reliable supply to sensitive loads on-site in the islanding mode. The modulation and controlling methods are proposed to have modular independence so that redundancy, maintainability, and improved reliability of supply can be achieved. The performance of the proposed paralleled Z-source inverter configuration is validated with simulations carried out using Matlab/Simulink/Powersim. Moreover, a prototype is built in the laboratory to obtain the experimental En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4783109&sortType%3Das [...]

Z-source-inverter-based flexible distributed generation system solution for grid power quality improvement / Gajanayake, C.J. in IEEE transactions on energy conversion, Vol. 24 N° 3 (Septembre 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N° 3 (Septembre 2009) . - pp. 695 - 704 Titre : Z-source-inverter-based flexible distributed generation system solution for grid power quality improvement Type de document : texte imprimé Auteurs : Gajanayake, C.J., Auteur ; Vilathgamuwa, D. M., Auteur ; Poh Chiang Loh, Auteur Année de publication : 2010 Article en page(s) : pp. 695 - 704 Note générale : Energy Conversion Langues : Anglais (eng) Mots-clés : Control  system  synthesis--Distributed  power  generation--Invertors--Power  convertors--Power  grids--Power--supply  quality Résumé : Distributed generation (DG) systems are usually connected to the grid using power electronic converters. Power delivered from such DG sources depends on factors like energy availability and load demand. The converters used in power conversion do not operate with their full capacity all the time. The unused or remaining capacity of the converters could be used to provide some ancillary functions like harmonic and unbalance mitigation of the power distribution system. As some of these DG sources have wide operating ranges, they need special power converters for grid interfacing. Being a single-stage buck-boost inverter, recently proposed Z-source inverter (ZSI) is a good candidate for future DG systems. This paper presents a controller design for a ZSI-based DG system to improve power quality of distribution systems. The proposed control method is tested with simulation results obtained using Matlab/Simulink/PLECS and subsequently it is experimentally validated using a laboratory prototype. Note de contenu : Bibiogr. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5224017&sortType%3Das [...] [article] Z-source-inverter-based flexible distributed generation system solution for grid power quality improvement [texte imprimé] / Gajanayake, C.J., Auteur ; Vilathgamuwa, D. M., Auteur ; Poh Chiang Loh, Auteur . - 2010 . - pp. 695 - 704. Energy Conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 3 (Septembre 2009) . - pp. 695 - 704 Mots-clés : Control  system  synthesis--Distributed  power  generation--Invertors--Power  convertors--Power  grids--Power--supply  quality Résumé : Distributed generation (DG) systems are usually connected to the grid using power electronic converters. Power delivered from such DG sources depends on factors like energy availability and load demand. The converters used in power conversion do not operate with their full capacity all the time. The unused or remaining capacity of the converters could be used to provide some ancillary functions like harmonic and unbalance mitigation of the power distribution system. As some of these DG sources have wide operating ranges, they need special power converters for grid interfacing. Being a single-stage buck-boost inverter, recently proposed Z-source inverter (ZSI) is a good candidate for future DG systems. This paper presents a controller design for a ZSI-based DG system to improve power quality of distribution systems. The proposed control method is tested with simulation results obtained using Matlab/Simulink/PLECS and subsequently it is experimentally validated using a laboratory prototype. Note de contenu : Bibiogr. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5224017&sortType%3Das [...]