By Topic

An improved method for controlling an EDLC-battery hybrid stand-alone photovoltaic power system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Nozaki, Y. ; NTT Telecommun. Energy Labs., Tokyo, Japan ; Akiyama, K. ; Kawaguchi, H. ; Kurokawa, K.

Stand-alone photovoltaic power systems are potential power sources for wireless and optical telecommunications equipment and solar home systems. For these systems to be practical, the batteries used to store the power must have a long lifetime. We have proposed a stand-alone photovoltaic power system that uses an electric double-layer capacitor (EDLC) with lead-acid batteries. This system reduces the number of battery charge-and-discharge cycles and maintains the optimal charging voltage by using EDLC discharge power. In this paper, we describe the system's circuit configuration, operation, and conversion efficiency analysis. An improved method is described for controlling the system. It increases the system's power-conversion efficiency by keeping the capacitor voltage high. Simulation of a 250 W photovoltaic system showed that it reduces the power conversion losses in the system by about 35%

Published in:

Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE  (Volume:2 )

Date of Conference:

2000