By Topic

A Resonant Switched-Capacitor IC and Embedded System for Sub-Module Photovoltaic Power Management

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
$33 $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

3 Author(s)
Jason T. Stauth ; Dartmouth College, Hanover, NH, USA ; Michael D. Seeman ; Kapil Kesarwani

The viability of grid-connected photovoltaic (PV) energy has improved dramatically in recent years: large increases in manufacturing capacity have driven reductions in cost and higher efficiencies, improving lifetime cost of energy (LCOE). Mismatch loss remains an important consideration in PV systems and a range of power electronic solutions have been proposed to recover losses due to shading, dust/debris, factory mismatch and aging. This paper presents a high-voltage CMOS IC and embedded system based on a resonant switched-capacitor converter. The solution is integrated into the junction box to balance power flow in parallel with sub-module strings of PV cells. A custom dual-core cable and connector extend the balancing function to multiple PV modules connected in series, improving energy production of large-scale PV arrays in the case of shading or mismatch. The converter is based on a resonant switched-capacitor (ReSC) topology that achieves effective conversion efficiency over 99% for a wide range of mismatch, insertion loss below 0.1%, a vertical footprint less than 6 mm, and weight less than 1 Oz.

Published in:

IEEE Journal of Solid-State Circuits  (Volume:47 ,  Issue: 12 )