NDLI: Simple method of PV cells balancing for maximum power harvesting in partially shaded environment

Content Provider	IEEE Xplore Digital Library
Author	Telzhensky, N. Zeltser, I. Peretz, M.M.
Copyright Year	2014
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel (Peretz, M.M.) \|\| Power Electron. Dept., Rafael Adv. Defense Syst. Ltd., Haifa, Israel (Telzhensky, N.; Zeltser, I.)
Abstract	The energy, generated by photovoltaic (PV) module consisting of serially connected PV cells is considerably reduced when a unit is shadowed or has a defect. This problem can be remedied by bypassing the weak units by an active circuitry, such as power converter, connected in parallel to the PV units. This way the power converter balances the power between the PV units. This study evaluates the effectiveness of the unity-gain voltage balancing method to the PV strings comprised of PV cells. The results of this study show that the unity-gain voltage balancing strategy is highly effective when applied to cell-level since no significant voltage differences exist between the MPP voltages of the cells in the string. For steady state operation, the power loss due to the equalization was below 3% even for a high difference in temperature and insolation.
Starting Page	1
Ending Page	5
File Size	267836
Page Count	5
File Format	PDF
e-ISBN	9781479959884
DOI	10.1109/EEEI.2014.7005816
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-12-03
Publisher Place	Israel
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radiation effects Photovoltaic systems Power electronics Maximum power point trackers Switches Equations Maximum Power Point Tracking (MPPT) Photovoltaic Systems Voltage Equalization
Content Type	Text
Resource Type	Article

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