University of Twente Student Theses
Comparative Analysis of Charging Systems for Heavy Duty Applications : A Review of Size, Efficiency, Sustainability, and Economic Viability
Gheorghiță, I. (2023) Comparative Analysis of Charging Systems for Heavy Duty Applications : A Review of Size, Efficiency, Sustainability, and Economic Viability.
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| Abstract: | The ever-increasing global efforts of combating the causes and effects of climate change have culminated in 2015 with the legally binding adoption of the Paris Agreement. As a result of this treaty, the electrification of the transport sector has been greatly accelerated to quickly decrease its greenhouse gas (GHG) emissions. Light duty vehicles (LDVs) with fully electric powertrains have become more common, cheaper and with extended ranges. These developments, alongside the electrification of heavy-duty vehicles (HDVs) and the maritime sector result in much higher charging power requirements. The scope of this paper is to analyse state-of-the-art technologies that can be used in the charging systems for heavy duty applications (HDAs). We make a qualitative comparison in terms of size, efficiency, sustainability, and economic viability for the three main categories found in literature: alternating current (AC), direct current (DC), and inductive. The comparison is followed by a case study on DC charging with the primary focus on simulation, where we describe the design, operation, and control of a typical two-stage implementation. The analysis emphasizes the importance of topology choice, power factor correction (PFC), direct-quadrature-zero (DQZ) transformation, and integration of solid-state-transformers (SSTs). We realize the simulation and verification of the circuits in the PLECS software. Finally, the results show that DC charging is the most viable technology for large-scale projects, followed by inductive charging in the automation industry. We propose multilevel conversion and mixed charging infrastructure as possible solutions to the current limitations of charging systems. |
| Item Type: | Essay (Bachelor) |
| Faculty: | EEMCS: Electrical Engineering, Mathematics and Computer Science |
| Subject: | 53 electrotechnology |
| Programme: | Electrical Engineering BSc (56953) |
| Awards: | Best popular science abstract of a BSc thesis in Electrical Engineering of the academic year 2022/2023 |
| Link to this item: | https://purl.utwente.nl/essays/95995 |
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