A5082373439- Advanced Battery Technologies Research
- Electric Vehicles and Infrastructure
- Advancements in Battery Materials
- Electric and Hybrid Vehicle Technologies
- Electric Motor Design and Analysis
- Advanced Aircraft Design and Technologies
- Advanced Battery Materials and Technologies
- Real-time simulation and control systems
- Multilevel Inverters and Converters
- Silicon Carbide Semiconductor Technologies
- Electromagnetic Compatibility and Noise Suppression
- Recycling and Waste Management Techniques
- Advanced Memory and Neural Computing
- Real-Time Systems Scheduling
- Advanced DC-DC Converters
- Magnetic Bearings and Levitation Dynamics
- Sensorless Control of Electric Motors
- Embedded Systems Design Techniques
- Robotic Path Planning Algorithms
- Induction Heating and Inverter Technology
- Extraction and Separation Processes
- Traffic control and management
- Physics and Engineering Research Articles
- Vehicle emissions and performance
- Magnetic Field Sensors Techniques
Bern University of Applied Sciences
2005-2023
École Polytechnique Fédérale de Lausanne
2002
The demand for battery-powered products, ranging from consumer goods to electric vehicles, keeps increasing. As a result, batteries are manufactured and shipped globally, the safe reliable transport of production sites suppliers consumers, as well disposal, must be guaranteed at all times. This is especially true lithium batteries, which have been identified dangerous when they transported. paper reviews international key national (U.S., Europe, China, South Korea, Japan) air, road, rail,...
This paper deals with the design of a grid-friendly ultrafast electric vehicle charging demonstrator. High power and short times impose peaks to an electricity distribution system, which necessitate over-dimensioning grid connection. A mitigation option lies in partial decoupling load from grid, achieved application energy storage elements. calculation methodology for elements is proposed their interconnection possibilities EV spot discussed.
Hybrid-electric aircraft represent a promising solution for the urgent need to decarbonize short-haul flights and bolster aviation sustainability. Nevertheless, realization of hybrid-electric demands rigorous environmental impact analysis, given substantial investments, time, research required technology development. This study offers comprehensive life cycle inventory spanning years 2030, 2040, 2050 both conventional configurations. Our datasets are meticulously constructed through...
Common-mode voltages generated by PWM inverters in induction motor drives cause shaft voltages, bearing currents and ground leakage resulting into early mechanical failure of machine bearings conducted EMI. A five-level inverter topology with switching state combination selection strategy for the control is proposed an open-end winding drive, which completely eliminates common-mode at poles phase windings, complete modulation range drive. The drive structure offers reduced device count,...
Hybrid-electric aircraft are often perceived as a potential solution to decarbonize short-haul flights and enhance aviation sustainability. However, making hybrid-electric reality should be backed by robust environmental impact analysis because the necessary technology development is investment, time, research-heavy. In this study, we thus developed total of 45 prospective life cycle inventories (LCI) for conventional hybrid electric configurations technologies 2030, 2040, 2050. The LCI...
An evident issue for electric vehicle (EV) is the limited average speed while driving long distances. This paper will provide a better understanding of EV requirements in order to make vehicles more compatible distance driving. Battery are specified and ultra-fast charging station introduced, where power levelling load shifting proposed alleviate impact on grid utility; this should be able satisfy demand according frequentation. Then, 24-hour road trip performed validate performance related...
This paper presents a synchronous reluctance machine as alternative to the permanent magnet machine. Possible designs are considered for motor rotor, while stator is of conventional design induction with 48 slots and distributed double-layer winding. In work, analysis given parameters an optimal motor. The modelling electromagnetic field performed in JMAG software based on finite element method. basic geometric dimensions taken from used Toyota Prius.
The power electronics in a drive system of hybrid electric or car can be subdivided different function blocks without considering the effective concept (series/parallel hybrid, range extender) kind electrical machine use (direct/alternating current machines). This paper identifies main and discusses requirements possible solutions. Some solutions were implemented Hybrid III, vehicle project Swiss Federal Institute Technology. Two blocks, battery charger concept, using factor control capacity...
Shifting the mobility paradigm from fossil fuel to electric propulsion system poses several challenges a large extent attributed low energy density of storage systems. However, technology improvements and an accurate combination new systems can facilitate electrification sector. For first time, hybridization algorithm is developed evaluate optimal configuration future Energy Storage System (ESS) design such as aircrafts or ships. The based on operational behaviors high-level performances...
AbstractCommon-mode voltage (CMV) generated by different topologies of the pulse width modulated (PWM) inverters causes shaft voltage, bearing current and ground leakage in induction motor (IM) drive system. Consequently premature mechanical failure (fluting) machine bearings conducted electromagnetic interference (EMI) are observed multilevel PWM inverter fed IM systems. A five-level topology with switching state combination selection strategy for control is proposed an complete elimination...
The paper describes the aging behavior of NMC/LTO li-ion cell using impedance model when cycled at different operating conditions. Paper depicts change in with state charge and cycle life. Both, solution transfer, resistances increase stages battery Change is Solution resistance (R1) impacted by electrolyte decompositions as it changes significantly discharge from 50 to 0%. However, very little 100 50% SOC. With parameters variations, seems C-rate has bigger impact on diffusion rather than...
One of the first pure electric vehicles with Lithium Ion Battery running on European market is SAM EVII developed by S A.M. Group AG. It a light weight three wheel vehicle automotive comfort, sold to customers since November 2009. To gather information about its daily usage and therefore be able design drive train follow-up model, 3, field test has been started. In already customer cars used in different conditions, CAN data loggers have recording for several months. They log around 50...
Serpentine is a concept for flexible public transportation system which can adapt to passenger demand in city environment. Schematically, it includes static component-track on ground, communication stations, central control and distributed power management units; dynamic one-small 4 5 person capacity vehicles, autonomously move through the network, either independently from one another, or as adaptive, temporary convoys when higher flow density required. Among new developments, paper reports...