NDLI: Active voltage ripple compensation in PV Systems for domestic uses

Content Provider	IEEE Xplore Digital Library
Author	Testa, A. De Caro, S.
Copyright Year	2010
Description	Author affiliation: University of Messina, 31 Salita Sperone, Sant'Agata, IT98166, ITALY (Testa, A.; De Caro, S.)
Abstract	Photo Voltaic (PV) generators today find application in the domestic field, where the decentralized power conversion concept has proven to be more advantageous than the conventional string architecture. According to the decentralized power conversion concept, PV modules are connected to a single phase AC grid through a two stage converter composed of a DC/DC converter and an inverter. The DC/DC converter accomplishes the Maximum Power Point Tracking (MPPT) and boosts the voltage. It must also include a suitable capacitor bank to solve the unbalance between the DC power generated by the modules and the AC power drawn by the grid. Such a power unbalance in fact generates a voltage ripple that negatively affects the MPPT, forcing the system to work only around its optimal operating point. On the other hand, electrolytic capacitors are highly disliked in PV systems for reliability reasons. Therefore, active current ripple reduction techniques have been proposed in the past, exploiting active filters that increase the complexity and the cost of the system. An alternative approach is proposed in this paper where an active filter is integrated into a Double Interleaved Boost Converter, without introducing extra power devices. According to the proposed approach the size of the electrolytic capacitor bank can be largely reduced, thus improving the reliability and the efficiency of PV systems.
Starting Page	2193
Ending Page	2198
File Size	1151204
Page Count	6
File Format	PDF
ISBN	9781424463909
e-ISBN	9781424463923
DOI	10.1109/ISIE.2010.5637643
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-04
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitors Converters Active filters Inverters Control systems Generators Clamps
Content Type	Text
Resource Type	Article

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