Conventional Li-ion battery ageing models, such as electrochemical, semi-empirical and empirical require a significant amount of time experimental resources to provide accurate predictions under realistic operating conditions. At the same time, there is interest from industry in introduction new data collection telemetry technology. This implies forthcoming availability real-world operation data. In this context, development models able learn in-field an interesting solution mitigate need...

Conventional Li-ion battery ageing models, such as electrochemical, semi-empirical and empirical require a significant amount of time experimental resources to provide accurate predictions under realistic operating conditions. At the same time, there is interest from industry in introduction new data collection telemetry technology. This implies forthcoming availability real-world operation data. In this context, development models able learn in-field an interesting solution mitigate need...

Abstract The fast growth experienced by the field of lithium‐ion capacitors (LICs) in last five years led to tremendous progress this technology. However, authors have observed some parallelism with its ultracapacitor (UC) sister technology, where an over‐rapid decade resulted a loss focus and need several tutorials for reconducting incorrect reporting habits. In light what may be coming, aim set work as direction scientific community new researchers serve i) retrospective analysis original...

Lithium-ion (Li-ion) batteries are still the best technology to power Electric Vehicle (EV), due their high and energy density. However, use of these can be limited in cars with a demand for peak very One way improve performance Li-ion battery reduce its weight is associate this another higher specific as second source, e.g. Lithium-sulfur (Li-S). The development Hybrid Energy Storage Systems (HESSs) promising solution optimizing management EVs. In paper, we present experimental results...

The present paper is focused on the evaluation of economic influence a battery lifetime model upon optimal sizing and energy management strategy dual storage system (ESS) composed Lithium-ion batteries supercapacitors. operation Hybrid Bus taken as case study in order to evaluate effects models’ accuracy ESS heavy-duty application. For this purpose, two different models (a Wöhler-curve-based semi-empirical model) were applied multi-objective optimisation hybrid electric urban bus....

In this study, the life cycle costs of railway projects involving hybrid diesel-electric vehicles are analysed. Specifically, analysis focuses on comparison 3 lithium-ion battery technologies (NMC, LTO and LFP) 8 energy management strategies (including rule-based optimization-based strategies). order to develop analysis, a methodology that returns cost each proposed case is presented. The includes optimization diesel generator sizing. A scenario based real line introduced, obtained results...

One of the most relevant tasks that must be carried out by a Battery Management System (BMS) is diagnosis battery state. An important part algorithms used for determining State Charge (SOC) or Health (SOH) requires cell model to run. The precise used, best estimation achieved algorithm. In this paper, two techniques obtaining dynamics and calculating its parameters are analyzed: time domain characterization frequency impedance-based characterization. Their principal characteristics some...

An accurate onboard State-of-Charge (SOC) estimation is one of the key functions a Battery Management System (BMS) has to perform in order provide optimal performance management battery system under control. In this framework, paper presents proposal an Enhanced Coulomb Counting (CC) algorithm based on Constant Voltage Charge Detection (CVCD) and Open Circuit (OCV) model for LiFePO4 batteries. Designed BMS implementation, it characterized by its simplicity operability wide operating...

This study analyzes the life cycle costs of railway projects involving hybrid diesel-electric multiple units, focusing on influence lithium-ion battery technologies and energy management strategies. Specifically, 3 6 strategies are proposed, leading to a sensitivity analysis composed 18 cases. In addition, for each case an approach optimal sizing diesel generator is proposed. A scenario based real line introduced results compared traditional unit. Potential cost savings 16.0% obtained when...

Progress towards a decarbonized economy is dependent on the development of energy storage devices enabling deployment new strategies in transport and sectors. Lithium-Ion Batteries (LIBs) play key role facilitating shift from fossil fuels to renewables based ubiquitous sources decentralized energy. However, rapidly increasing demand for batteries has generated environmental concerns regarding recycling, raw materials depletion exhaustion. Moreover, level extraction processing battery local...

This paper analyzes and proposes the use of Gallium Nitride (GaN) devices for dc-dc converter applied to control Hybrid Energy Storage Systems (HESSs). Benefits limitations GaN-based power converters are identified near future HESSs. Moreover, design considerations analyzed, identifying most differential characteristics. Then, performance is evaluated in (b) terms losses volume. The assembled experimental prototype also presented, order validate theoretical analysis.

An accurate onboard State-of-Charge (SOC) estimation is one of the key functions a Battery Management System (BMS) has to perform in order provide optimal performance management battery system under control. In this framework, paper presents proposal an Enhanced Coulomb Counting (CC) algorithm based on Constant Voltage Charge Detection (CVCD) and Open Circuit (OCV) model for LiFePO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub>...

This study analyzes the influence of energy management strategies and different lithium-ion battery technologies on life cycle costs railway projects involving hybrid diesel-electric multiple units. Three lithiumion five are proposed compared in terms acquisition, operation maintenance costs. For each sensitivity case, an approach for optimal sizing diesel generator is also proposed. The results show that potential savings 15.1% to a traditional unit can be obtained with global...

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