Journal ArticleDOI
Power and life extension of battery-ultracapacitor hybrids
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TLDR
In this article, the performance of a battery-ultracapacitor hybrid power source under pulsed load conditions is analyzed using simplified models, and the authors show that peak power can be greatly enhanced, internal losses can be considerably reduced, and that discharge life of the battery is extended.Abstract:
The performance of a battery-ultracapacitor hybrid power source under pulsed load conditions is analytically described using simplified models. We show that peak power can be greatly enhanced, internal losses can be considerably reduced, and that discharge life of the battery is extended. Greatest benefits are seen when the load pulse rate is higher than the system eigenfrequency and when the pulse duty is small. Actual benefits are substantial; adding a 23 F ultracapacitor bank (3 /spl times/ 7 PC10 ultracapacitors) in parallel with a typical Li-ion battery of 7.2 V and 1.35 A hr capacity can boost the peak power capacity by 5 times and reduce the power loss by 74%, while minimally impacting system volume and weight, for pulsed loads of 5 A, 1 Hz repetition rate, and 10% duty.read more
Citations
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Proceedings ArticleDOI
Hybrid DC Power System for Pulse Load Application: Design, Modeling and Operation
TL;DR: In this article, the design of a hybrid DC power system for pulse load applications is considered, where the requirements of the system in terms of power and energy were described and the design aspects of the hybrid energy storage system, passive hybrid and active hybrid, were explained in detail.
Proceedings ArticleDOI
Modelling, Simulation and Characterization of a Supercapacitor in Automotive Applications
Vincenzo Castiglia,Nicola Campagna,A. O. Di Tommaso,Rosario Miceli,Filippo Pellitteri,C. Puccio,Fabio Viola +6 more
TL;DR: A supercapacitor model suitable for the simulation in automotive applications is identified and the model parameters are estimated and used to simulate the behaviour of a commercial SCs bank in different operating conditions.
Proceedings ArticleDOI
Performance analysis and comparision of ultracapacitor based regenerative braking system
Tongzhen Wei,Sibo Wang,Xuhua Gao +2 more
TL;DR: In this article, three types of energy storage system for regenerative braking are presented, and the advantages and disadvantages are discussed after the simulation and experimental results are presented after the design guidelines are suggested.
Book
Computer-Aided Design and Optimization of Hybrid Energy Storage Systems
TL;DR: Key challenges that one faces when dealing with the optimal design and runtime management of a hybrid energy storage system targeting some specific application scenario; for example, grid-scale energy management, household peak power shaving, mobile platform power saving, and more are explained.
Proceedings ArticleDOI
Research on the ultracapacitor/battery hybrid system
TL;DR: In this paper, a mathematical model of ultracapacitor/battery hybrid system was set up, and the characters of it such as peak power enhancement were studied and the correlative factors were analyzed.
References
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Book
Electrochemical Supercapacitors : Scientific Fundamentals and Technological Applications
TL;DR: In this paper, the double-layer and surface functionalities at Carbon were investigated and the double layer at Capacitor Electrode Interfaces: its structure and Capacitance.
Journal ArticleDOI
Principles and applications of electrochemical capacitors
Rüdiger Kötz,M. Carlen +1 more
TL;DR: In this article, the fundamental principles, performance, characteristics, present and future applications of electrochemical capacitors are presented in this communication, and different applications demanding large ECs with high voltage and improved energy and power density are under discussion.
Journal ArticleDOI
Characterization of double-layer capacitors (DLCs) for power electronics applications
L. Zubieta,R. Bonert +1 more
TL;DR: In this article, the double-layer capacitor (DLC) for power applications is presented, and an equivalent circuit model consisting of three RC branches, one of them with a voltage-dependent capacitance is presented.
Journal ArticleDOI
Measurement and modelling of the high-power performance of carbon-based supercapacitors
TL;DR: In this article, four different testing methods including Impedance Spectroscopy, Constant Current Charging, Cyclic Voltammetry and Power Cycling were applied to each supercapacitor and the results are reviewed.
Journal ArticleDOI
Man portable power needs of the 21st century: I. Applications for the dismounted soldier. II. Enhanced capabilities through the use of hybrid power sources
TL;DR: In this paper, the authors proposed a power source with enough energy to meet the Army's preference for a 72-h mission life before the need for resupply, based on the Single Channel Ground and Airborne Radio System.
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