Sizing a battery-supercapacitor energy storage system with battery degradation consideration for high-performance electric vehicles

Zhu, Tao; Lot, Roberto; Wills, Richard; Yan, Xingda

doi:10.1016/j.energy.2020.118336

Cited by 43 publications

(17 citation statements)

References 44 publications

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“…Energy storage systems (ESSs) are closely related to energy saving and power quality improvement. They have a wide spectrum of prospects for application in power systems for renewable energy generation [3] and electric vehicles [4]. Over the past few years, extensive interest and efforts have focused on energy management of the systems with ESSs.…”

Section: Introductionmentioning

confidence: 99%

Optimal sizing and operation of hybrid energy storage systems in co‐phase traction power supply system considering battery degradation

Gao

Huang

et al. 2023

IET Generation Trans & Dist

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To recycle regenerative braking energy (RBE) while reducing demand charge in electrified railway, a co-phase power supply system with hybrid energy storage system (HESS) is implemented. However, the dynamical degradation characteristic of battery is necessary to be considered in optimal operation of HESS. A bi-level model considering battery degradation is proposed to obtain optimal sizing and operation of HESS. The proposed model includes a novel real-time energy management strategy (EMS) using average power as thresholds, to effectively reduce the demand charge and energy consumption charge. Thresholds are dynamically adjusted with the consideration of battery capacity degradation. A real measured load profile from Beijing-Shanghai high speed railway is studied. The results demonstrate that the proposed EMS performs better than previous EMS in cost saving. The dynamically adjusted thresholds of EMS are proved to be essential under the consideration of battery degradation. With the optimal sizing of the HESS, the traction substation can achieve 8.69% annual saving of demand charge and recycle 52.33% of the RBE. The results also show that a traction substation equipped with the HESS yields higher economic benefit than the energy storage systems equipped with only a battery or a supercapacitor.

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Section: Introductionmentioning

confidence: 99%

Optimal sizing and operation of hybrid energy storage systems in co‐phase traction power supply system considering battery degradation

Gao

Huang

et al. 2023

IET Generation Trans & Dist

View full text Add to dashboard Cite

show abstract

“…In literature, EMS has been considered in several works [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]; we can classify these strategies into two main categories:…”

Section: Introductionmentioning

confidence: 99%

“…First: strategies based on predefined rules, main objective of this method is to operate the system at its point of return with advantage of being more simply implementable in real time, and these strategies do not require a priori knowing of driving cycle in advance. There are two types of rules: deterministic rules and fuzzy logic-based rules as examples for deterministic rules such as: thermostat, power follower, frequency-based, engine optimal working point, engine optimal operation line, engine optimal efficiency region and system optimal operation point [5][6][7][8][9][10][11][12], the results of those strategies show that they have better fuel economy and vehicle mileage.…”

Section: Introductionmentioning

confidence: 99%

Frequency splitting approach using wavelet for energy management strategies in fuel cell ultra-capacitor hybrid system

Samia¹,

Azib²,

Kamel-Eddine³

2022

J. meas. eng.

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Using frequency splitting, two energy management strategies (EMS) based on Haar wavelet decomposition and Fourier analysis for fuel cell hybrid vehicle (FCHV) are proposed to manage efficiently the power flow between components. The paper aims to discuss the performances of the proposed EMS in terms of dynamic behavior, robustness operation, real time application and fuel economy. For apply this methodology, two EMS approaches are elaborated and successfully tested for parallel Fuel Cell/UC: conventional approach using Fourier Transform analysis (FT) and Wavelet analysis approach allowing natural frequency splitting. Finally, and to evaluate the performance and relevance of the developed approach, a comparison analysis were conducted. The simulation results exhibit the effectiveness of both strategies. Indeed, Wavelet analysis leads to better results in terms of energy flow and dynamic behavior, excellent robustness and stability of system, as well as energy economy improvement. A very relevant strategy is proposed based on Wavelet analysis using digital filtering techniques, which enables a natural frequency splitting to ensure the best global performances. In addition, the approach remains simple and suitable for real time operation.

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“…Therefore, SCs are increasingly used in a wide range of industrial pieces of equipment as the principal energy storage system or, more frequently, as a support to devices with a higher energy storage capacity, albeit dynamically poorer because of its slower response, as in the case of batteries and fuel cells [1][2][3][4][5]. Together with them, SCs make up hybrid energy storage units installed in electric vehicles [6][7][8][9], renewable energy systems [10][11][12][13], microgrids [14,15], and public transport vehicles [16]. This hybrid combination presents particular uses as well, such as public works machinery [17], military [18] and recreational vehicles [19], and even maritime transport [20].…”

Section: Introductionmentioning

confidence: 99%

Supercapacitors in Constant-Power Applications: Mathematical Analysis for the Calculation of Temperature

et al. 2021

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A set of analytical equations for the calculation of the temperature in supercapacitors operating in constant-power applications is presented in this paper. Although the main operation modes of supercapacitors are constant-current and constant-power charge and discharge, this study was focused on the latter, since both sources and loads act as constant-power systems in a wide range of power conversion facilities. The starting point of this study is the classical supercapacitor model based on electrical and thermal parameters provided by manufacturers or also obtained by experimental means. The proposed mathematical analysis is based on the so-called incomplete gamma function that presents two major advantages over previously existing methods. Firstly, it is not necessary to solve any differential equations system by means of numerical methods, which reduces the required computational effort. Secondly, no simplifications to relief the calculations are made in the computation of any variable. The new formulation renders valid solutions even for high-power demand situations. Moreover, the temperature of the supercapacitor can be expressed as a function of time or any other electrical variable in the charging and discharging processes. Therefore, the proposed formulas are especially remarkable for the electrical and thermal dimensioning of supercapacitors.

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Sizing a battery-supercapacitor energy storage system with battery degradation consideration for high-performance electric vehicles

Cited by 43 publications

References 44 publications

Optimal sizing and operation of hybrid energy storage systems in co‐phase traction power supply system considering battery degradation

Optimal sizing and operation of hybrid energy storage systems in co‐phase traction power supply system considering battery degradation

Frequency splitting approach using wavelet for energy management strategies in fuel cell ultra-capacitor hybrid system

Supercapacitors in Constant-Power Applications: Mathematical Analysis for the Calculation of Temperature

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