Journal ArticleDOI
Power and life extension of battery-ultracapacitor hybrids
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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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Journal ArticleDOI
Optimal PI-Controller-Based Hybrid Energy Storage System in DC Microgrid
M. Vijayan,Ramanjaneya Reddy Udumula,Tarkeshwar Mahto,B. Lokeshgupta,B. Srikanth Goud,Ch. Naga Sai Kalyan,P. Balachandran,D. C.,Sanjeevikumar Padmanaban,Bheki Twala +9 more
TL;DR: In this article , an optimal PI-controller-based hybrid energy storage system for a DC microgrid is proposed for the effective utilization of renewable power, which is implemented using the MATLAB/SIMULINK platform.
Proceedings ArticleDOI
Study on the charging and discharging control strategy of battery and super capacitor
TL;DR: In this article, a charge discharge control strategy is proposed based on the research on the charging and discharging of battery-ultra-capacitor hybrid energy storage system combined with some characteristics of the off-grid wind power system.
Journal ArticleDOI
Control of Hybrid Energy Storage System for Hybrid Electric Vehicles using Uniform Continuous Higher Order Sliding Mode Control
Prasanth K Prasad,Ramesh Kumar P +1 more
TL;DR: An uniform continuous higher order sliding mode controller (UCHOSMC) is applied which is a combination of two controllers one is an uniform super twisting control for disturbance rejection and other is uniform time convergence for a disturbance free system.
Journal ArticleDOI
Control of the Distributed Hybrid Energy Storage System Considering the Equivalent SOC
TL;DR: In this paper, an equivalent state of charge (ESOC) which reflects the remaining capacity of a HESS unit in a specific operation mode, is proposed to tackle the challenge, and the proposed ESOC is applied to the control of the distributed HESS which contains several units with their own local targets.
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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