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Analysis and calculation of zero-sequence voltage considering neutral-point potential balancing in three-level NPC converters / Wang, Chenchen in IEEE transactions on industrial electronics, Vol. 57 N° 7 (Juillet 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2262 - 2271 Titre : Analysis and calculation of zero-sequence voltage considering neutral-point potential balancing in three-level NPC converters Type de document : texte imprimé Auteurs : Wang, Chenchen, Auteur ; Li, Yongdong, Auteur Article en page(s) : pp. 2262 - 2271 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Balancing  algorithm  Neural  point  clamped  (NPC)  Neural-point  (NP)  potential  Zero-sequence  voltage Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The neutral-point (NP) potential of the three-level neutral-point-clamped converters is needed to maintain balancing. Zero-sequence voltage is the only freedom degree when carrier-based pulsewidth modulation is utilized. Appropriate zero-sequence voltage should be identified to control the NP potential. The relationship between the neutral current and injected zero-sequence voltage is studied comprehensively, and two balancing algorithms of NP potential, respectively adopting searching-optimization and interpolation methods, are presented. The theoretical optimum zero-sequence voltage for controlling NP potential can be obtained by the latter proposed algorithm. Simulation and experimental results are shown to verify the validity and practicability of the proposed algorithms. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5067319 [article] Analysis and calculation of zero-sequence voltage considering neutral-point potential balancing in three-level NPC converters [texte imprimé] / Wang, Chenchen, Auteur ; Li, Yongdong, Auteur . - pp. 2262 - 2271. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 7 (Juillet 2010) . - pp. 2262 - 2271 Mots-clés : Balancing  algorithm  Neural  point  clamped  (NPC)  Neural-point  (NP)  potential  Zero-sequence  voltage Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The neutral-point (NP) potential of the three-level neutral-point-clamped converters is needed to maintain balancing. Zero-sequence voltage is the only freedom degree when carrier-based pulsewidth modulation is utilized. Appropriate zero-sequence voltage should be identified to control the NP potential. The relationship between the neutral current and injected zero-sequence voltage is studied comprehensively, and two balancing algorithms of NP potential, respectively adopting searching-optimization and interpolation methods, are presented. The theoretical optimum zero-sequence voltage for controlling NP potential can be obtained by the latter proposed algorithm. Simulation and experimental results are shown to verify the validity and practicability of the proposed algorithms. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5067319