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1D battery electric vehicle thermal management system calibration and simulation based on measurements : magistrsko delo
Manja Umbreht, 2024, master's thesis

Abstract: Electric vehicles are developing at an increased rate due to electrification trends and are trying to achieve the comfort level of existing vehicles with internal combustion engines. In this thesis, we considered a battery electric vehicle, with which measurements were carried out. We created a complete vehicle model in GT Suite software based on available measurements and vehicle data. The model was used to simulate measured test cases. We described the calibration procedure of standalone models and the assembly of a complete thermal model of the entire vehicle. At the end we compared three simulated test cases with vehicle measurements. We concluded that the developed vehicle simulation model behavior fits well to the measured vehicle.
Keywords: 1D CFD, VTMS, energy consumption, measurements, battery electric vehicle
Published in DKUM: 22.04.2024; Views: 111; Downloads: 0
.pdf Full text (6,01 MB)

A Survey on the State-of-the-Art and Future Trends of Multilevel Inverters in BEVs
Alenka Hren, Mitja Truntič, Franc Mihalič, 2023, review article

Abstract: All electric vehicles are the only way to decarbonize transport quickly and substantially. Although multilevel inverters have already been used in some transportation modes, they are rarely used in road transportation, especially in light-duty passenger BEVs. With the transition to a high 800-V DC link to extend the driving range and enable extreme fast charging, the possibility of using multilevel inverters in commercial light-duty passenger BEVs becomes feasible. Higher efficiency, higher power density, better waveform quality, lower switching frequency, the possibility of using low-rated switches, and inherent fault tolerance are known advantages of multilevel inverters that make them an efficient option for replacing 2-level inverters in high DC link passenger BEVs. This paper discusses high DC link voltage benefits in light-duty passenger BEVs, presents the state-of-the-art of different conventional multilevel inverter topologies used in BEVs, and compares them with conventional 2-level inverters from different aspects and limitations. Based on commercial upper-class passengers’ BEV data and a review of multilevel inverters on the market, future trends and possible research areas are identified.
Keywords: multilevel inverters, MLI, electric vehicle, EV, passengers’ battery electric vehicle, BEV, extreme fast charging, XFC, higher voltage batteries, WBG semiconductors
Published in DKUM: 26.03.2024; Views: 206; Downloads: 18
.pdf Full text (2,07 MB)
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