Implementation of differential power processing concept to switched-capacitor topology for PV sub-module level power balancing
Küçük Resim Yok
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Non-convex power characteristic curve with decreased peak power and with multiple local maxima occurs because of the partial shading and mismatching conditions among the series connected modules/sub-modules/cells. A number of power electronics topology has been proposed to equalize voltage of each series connected sub-module while providing an extra current path circuitry for mismatch current. The equalization is done by energy transfer between the sub-modules which brings all sub-modules to the same operating voltage and this collective operation produces a convex output power curve with increased peak power. A power electronics solution including minimum number of components and having higher efficiency is essential in this type of application from the perspective of installation costs and overall efficiency. This paper realizes a differential power processing (DPP) version of the recently presented sub-module level power balancing topology which uses nearly half of the converter number in comparison to the related literature. The DPP version of the topology provides improvement in efficiency for matched conditions and for some arbitrary partial shading patterns conditions over the string. PSpice simulation results are provided to show advantage of the approach in comparison to single output version. © 2015 Chamber of Electrical Engineers of Turkey.
Açıklama
9th International Conference on Electrical and Electronics Engineering, ELECO 2015 -- 26 November 2015 through 28 November 2015 -- Bursa -- 119202
Anahtar Kelimeler
Energy transfer, Power electronics, SPICE, Collective operations, Differential power, Installation costs, Number of components, Overall efficiency, P-Spice simulation, Power characteristic, Switched-capacitor topology, Topology
Kaynak
ELECO 2015 - 9th International Conference on Electrical and Electronics Engineering
WoS Q Değeri
Scopus Q Değeri
N/A
