A comparative study of equivalent circuit models of ultracapacitors for electric vehicles

Zhang, Lei; Wang, Zhenpo; Hu, Xiaosong; Sun, Fuchun; Dorrell, David G.

doi:10.1016/j.jpowsour.2014.10.170

Cited by 145 publications

(91 citation statements)

References 23 publications

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“…Battery electric models mainly include electrochemical model [6][7][8][9], reduced-order model [10][11][12][13], equivalent circuit model [14][15][16][17] and data-driven model [18][19][20]. For electrochemical model, Rahman et al [6] claimed that the battery electrochemical model should have the abilities to capture the spatiotemporal dynamics of battery concentration, the electrode potential for each phase and the BulterVolmer kinetic to control intercalation reaction.…”

Section: Battery Electric Modelmentioning

confidence: 99%

“…The number of RC networks is treated as the model order, and need be carefully selected. It has been shown that the first and second order models are more popular, and higher order models in many cases are not necessary [14]. Nejad et al [15] presented a critical review for commonly used battery lumped-parameter equivalent circuit model.…”

Section: Battery Electric Modelmentioning

confidence: 99%

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A brief review on key technologies in the battery management system of electric vehicles

et al. 2018

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Batteries have been widely applied in many high-power applications, such as electric vehicles (EVs) and hybrid electric vehicles, where a suitable battery management system (BMS) is vital in ensuring safe and reliable operation of batteries. This paper aims to give a brief review on several key technologies of BMS, including battery modelling, state estimation and battery charging. First, popular battery types used in EVs are surveyed, followed by the introduction of key technologies used in BMS. Various battery models, including the electric model, thermal model and coupled electro-thermal model are reviewed. Then, battery state estimations for the state of charge, state of health and internal temperature are comprehensively surveyed. Finally, several key and traditional battery charging approaches with associated optimization methods are discussed.

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Section: Battery Electric Modelmentioning

confidence: 99%

Section: Battery Electric Modelmentioning

confidence: 99%

A brief review on key technologies in the battery management system of electric vehicles

et al. 2018

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“…Genetic algorithm (GA) [4,17], Simulated annealing (SA) [18], Tabu search (TS) [19], Particle swarm optimization (PSO) [15,20] and Ant colony optimization (ACO) [21] are examples of this type of algorithm.…”

Section: Numerical Examplesmentioning

confidence: 99%

Working time optimal planning of construction site served by a single tower crane

Tubaileh

2016

J Mech Sci Technol

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We present a method for optimizing the layout of single tower crane and supply material locations. The crane is treated as a robot with multi degrees-of-freedom and the displacement of each joint is expressed as a cubic spline. A mathematical model is developed to generate working time optimized crane operations. Both kinematics and dynamic models are presented to describe the crane motion requirements and limitations. The constraints imposed on crane velocity, acceleration, jerk and power are considered in order to provide efficient planning and scheduling of crane operations, as well as improving the general performance and safety aspects of the crane. Solutions of the presented problem are composed of continuous and discrete variables. The continuous variables are obtained by solving the nonlinear optimization model using the NAG optimization toolbox. On the other hand, a simulated annealing algorithm is developed to obtain the discrete variables. To demonstrate the feasibility of the presented method, numerical examples have been tested and compared with other crane optimal planning methods.

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“…Electrochemical capacitors are the devices, which are composed of separated electrodes impregnated with electrolyte containing ions as charge carriers [2,3]. In order to achieve high double-layer capacitance values (Eq.…”

Section: Introductionmentioning

confidence: 99%

Determination of accurate electrode contribution during voltammetry scan of electrochemical capacitors

Ślesiński

Frąckowiak

2018

J Solid State Electrochem

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This paper introduces the method which allows determining the accurate electrode contributions during cyclic voltammetry (CV) scan of electrochemical capacitor. As a result of theoretical considerations, a calculation method which reveals voltammetry response of both electrodes during CV of two-electrode cell with reference is developed. The technique is based on the preservation of charge neutrality where the accurate potential sweep rate of individual electrode is dynamically assigned based on its total contribution to the total two-electrode cell voltage ramp. This practice should be used in the research with CV scans of energy storage devices in order to improve their precision. The technique is not an alternative to real three-electrode measurements, where constant sweep rate of working electrode is applied and an oversized auxiliary electrode is used, but it is rather a supplement, which allows observing the true electrode behavior during operation of the capacitor. The paper provides comparison of CV scans obtained with fixed scan rates of both electrodes with dynamic CV scan for electrochemical capacitors operating in aqueous media of 1 mol L −1 Li 2 SO 4 and 7 mol L −1 KSCN. For the first time, the simple procedure is proposed to visualize the real qualitative electrode responses.

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A comparative study of equivalent circuit models of ultracapacitors for electric vehicles

Cited by 145 publications

References 23 publications

A brief review on key technologies in the battery management system of electric vehicles

A brief review on key technologies in the battery management system of electric vehicles

Working time optimal planning of construction site served by a single tower crane

Determination of accurate electrode contribution during voltammetry scan of electrochemical capacitors

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