Powertrain modularity
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Welcome to the Powertrain Modularity and Integration page, your central resource for exploring the latest advancements in electric vehicle powertrain systems. This page houses a curated collection of reports, scientific papers, and other key materials that delve into modular powertrain architectures, their benefits for EV performance, and streamlined integration processes. Whether you're researching flexible design approaches or seeking insights into how modularity can improve efficiency and reduce costs, these resources provide valuable information to support your work in advancing electric mobility.
Analysis of results of the switching tests of the converters
This deliverable reports on the switching tests validating the driver design of the highpower 150 kW hybrid T-Type converter for the RHODaS project. The study addresses the challenges of integrating Wide Band Gap (WBG) semiconductors, specifically Gallium Nitride (GaN) and Silicon Carbide (SiC), in high-voltage configurations to enhance efficiency. While the initial prototype faced reliability issues, a redesign utilising GaN Systems devices (GS66516B) and negative turn-off voltage successfully mitigated parasitic turn-on risks. Experimental analysis confirmed robust operation up to 1000 V. However, high commutation loop inductance (≈100 nH) necessitated limiting switching rise times to 70100 ns via adjusted gate parameters (Rgate=22 Ω, Cgate=4.7 nF). This adjustment prioritised reliability over minimal switching losses. Regarding control, whilst advanced CBPWM and SPWM strategies were implemented in the System on Chip (SoC), some constraints prevented their full experimental validation. Thus, standard Space Vector Modulation (SVPWM) will be employed for final testing. In conclusion, the project delivered a robust GaN stage capable of 1000 V operation, though the validation of custom modulation techniques remains pending.
Automotive Component Manufacturers, Power Electronic Engineers, Power Electronics Researchers
Active Gate Drivers, Design Optimisation, E-Volve Cluster, Pulsewidth Modulation, RHODaS, SiC and GaN Devices, Wide Bandgap Devices
Link:
Rhodas deliverable