Journal ArticleDOI
Power and life extension of battery-ultracapacitor hybrids
Reads0
Chats0
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
More filters
Proceedings ArticleDOI
Performance Investigations on the Power Source of Electric Vehicle Based on Hybrid Super-capacitors
Li Zhang,Jin-Yan Song,Jiyan Zou +2 more
TL;DR: In this paper, a hybrid super-capacitor is introduced, which is composed of anodes of electrolytic capacitor and cathodes of electrochemical capacitor, so it has the characteristics of high working voltage and low inner resistance.
Journal ArticleDOI
Fuzzy Logic Based Controller Effective Energy Management OfComposite Energy Storage System Involving Battery AndUltracapacitor inMicrogrid
TL;DR: In this paper, a composite energy storage system (CESS) that contains both high energy densitystorage battery and high power density storage ultracapacitorto meet the aforesaid requirements is presented.
Journal ArticleDOI
Design of 42V Synergic Electric Power for Hybrid Electrical Vehicle
TL;DR: In this article, a collectivity project of synergic electric power based on batteries and ultra capacitors, analyzed the work process of synergy electric power, through analysis and demonstration and experimental data validated the scheme is feasible.
Proceedings ArticleDOI
Scheduling of Dual Supercapacitor for Longer Battery Lifetime in Systems with Power Gating
TL;DR: It is shown that B-2SC can achieve higher longevity than its equivalent B-SC and reduce C-rate by an average of 14.25% and 21.87%, respectively with corresponding average performance loss of 6.25%.
References
More filters
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.
Related Papers (5)
Power enhancement of an actively controlled battery/ultracapacitor hybrid
A New Battery/UltraCapacitor Hybrid Energy Storage System for Electric, Hybrid, and Plug-In Hybrid Electric Vehicles
Battery, Ultracapacitor, Fuel Cell, and Hybrid Energy Storage Systems for Electric, Hybrid Electric, Fuel Cell, and Plug-In Hybrid Electric Vehicles: State of the Art
Alireza Khaligh,Zhihao Li +1 more