Title
Analysis of generalized parallel-series ultracapacitor shift circuits for energy storage systems
Abbreviated Journal Title
Renew. Energy
Keywords
Energy storage system; Ultracapacitor; Shift circuits; Energy & Fuels
Abstract
Ultracapacitors have numerous advantages including a remarkably high energy density as compared to conventional capacitors, long life cycle, temperature stability, and require no maintenance, which make them a good candidate to replace batteries as energy storage devices in renewable energy applications. However, ultracapacitors, just like conventional capacitors, inevitably suffer from constant voltage drop during discharging, which may limit their energy utilization, increase the voltage ripple of the DC bus across which the capacitors are connected and consequently increase the VA stresses of the subsequent converter stage. To alleviate the above limitations, parallel-series ultracapacitor shift circuits are employed to improve the energy utilization and minimize the DC bus voltage ripple. Two generalized parallel-series ultracapacitor shift circuits are presented and analyzed, and some design considerations and optimization methods are discussed. (C) 2010 Elsevier Ltd. All rights reserved.
Journal Title
Renewable Energy
Volume
36
Issue/Number
10
Publication Date
1-1-2011
Document Type
Article
Language
English
First Page
2599
Last Page
2604
WOS Identifier
ISSN
0960-1481
Recommended Citation
"Analysis of generalized parallel-series ultracapacitor shift circuits for energy storage systems" (2011). Faculty Bibliography 2010s. 1286.
https://stars.library.ucf.edu/facultybib2010/1286
Comments
Authors: contact us about adding a copy of your work at STARS@ucf.edu