Emerging electromobility requires a comprehensive simulation environment of the inverter and motor stage to ensure their performance and efficiency. Digital prototypes are critical to shortening development time and reducing costs by providing realistic test scenarios for such systems. The WLTP (Worldwide Harmonized Light Vehicles Test Procedure) is often not simulated but plays an important role, as this cycle reflects real driving conditions and thus enables an accurate assessment of the performance of electric vehicles. This work examines the role of digital prototypes in the context of e-mobility and focuses on the importance of WLTP cycle simulations for application-oriented testing. Furthermore, the focus is on the development of low-voltage inverters based on GaN-HEMT’s and the performance of detailed simulations using Spice, which allows a reasonable tradeoff between physical details and simulation time. The electro-mechanical behavior of a BLDC motor operated at various switching frequencies up to 150 kHz is simulatively compared to real measurement data. Then, the standardized motor test cycle WLTC is simulated to estimate the power consumption in driving cycles. This simulation environment enables sweeping various parameters like switching frequencies and commutation schemes e.g. trapezoidal or sinusoidal. Higher switching frequencies promise a combined efficiency increase of approx. 8 % of the electro-mechanical sub-system in this application-oriented test cycle. This work serves as a basis for new rapid prototyping for small electric vehicles, which can easily be adapted for e.g. 800 V, high-power automotive inverters.
%0 Conference Paper
%1 10412404
%A Nuzzo, Jeremy
%A Koch, Dominik
%A Weiser, Mathias C.J.
%A Bosch, Michael
%A Schnitzler, Ruben
%A Kallfass, Ingmar
%B 2023 IEEE Design Methodologies Conference (DMC)
%D 2023
%K ilh myown
%P 1-5
%R 10.1109/DMC58182.2023.10412404
%T Optimized Design of Fast-Switching GaN-based Inverters Utilizing a Digital Prototype in a Standardized Realistic Test Cycle
%X Emerging electromobility requires a comprehensive simulation environment of the inverter and motor stage to ensure their performance and efficiency. Digital prototypes are critical to shortening development time and reducing costs by providing realistic test scenarios for such systems. The WLTP (Worldwide Harmonized Light Vehicles Test Procedure) is often not simulated but plays an important role, as this cycle reflects real driving conditions and thus enables an accurate assessment of the performance of electric vehicles. This work examines the role of digital prototypes in the context of e-mobility and focuses on the importance of WLTP cycle simulations for application-oriented testing. Furthermore, the focus is on the development of low-voltage inverters based on GaN-HEMT’s and the performance of detailed simulations using Spice, which allows a reasonable tradeoff between physical details and simulation time. The electro-mechanical behavior of a BLDC motor operated at various switching frequencies up to 150 kHz is simulatively compared to real measurement data. Then, the standardized motor test cycle WLTC is simulated to estimate the power consumption in driving cycles. This simulation environment enables sweeping various parameters like switching frequencies and commutation schemes e.g. trapezoidal or sinusoidal. Higher switching frequencies promise a combined efficiency increase of approx. 8 % of the electro-mechanical sub-system in this application-oriented test cycle. This work serves as a basis for new rapid prototyping for small electric vehicles, which can easily be adapted for e.g. 800 V, high-power automotive inverters.
@inproceedings{10412404,
abstract = {Emerging electromobility requires a comprehensive simulation environment of the inverter and motor stage to ensure their performance and efficiency. Digital prototypes are critical to shortening development time and reducing costs by providing realistic test scenarios for such systems. The WLTP (Worldwide Harmonized Light Vehicles Test Procedure) is often not simulated but plays an important role, as this cycle reflects real driving conditions and thus enables an accurate assessment of the performance of electric vehicles. This work examines the role of digital prototypes in the context of e-mobility and focuses on the importance of WLTP cycle simulations for application-oriented testing. Furthermore, the focus is on the development of low-voltage inverters based on GaN-HEMT’s and the performance of detailed simulations using Spice, which allows a reasonable tradeoff between physical details and simulation time. The electro-mechanical behavior of a BLDC motor operated at various switching frequencies up to 150 kHz is simulatively compared to real measurement data. Then, the standardized motor test cycle WLTC is simulated to estimate the power consumption in driving cycles. This simulation environment enables sweeping various parameters like switching frequencies and commutation schemes e.g. trapezoidal or sinusoidal. Higher switching frequencies promise a combined efficiency increase of approx. 8 % of the electro-mechanical sub-system in this application-oriented test cycle. This work serves as a basis for new rapid prototyping for small electric vehicles, which can easily be adapted for e.g. 800 V, high-power automotive inverters.},
added-at = {2024-02-07T10:16:22.000+0100},
author = {Nuzzo, Jeremy and Koch, Dominik and Weiser, Mathias C.J. and Bosch, Michael and Schnitzler, Ruben and Kallfass, Ingmar},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/29fa4855f36500a2b9f6643ce834b0a08/dominikkoch},
booktitle = {2023 IEEE Design Methodologies Conference (DMC)},
doi = {10.1109/DMC58182.2023.10412404},
interhash = {371269d070c5bc82b77e8cc39e392eb2},
intrahash = {9fa4855f36500a2b9f6643ce834b0a08},
keywords = {ilh myown},
month = {Sep.},
pages = {1-5},
timestamp = {2024-02-07T10:16:22.000+0100},
title = {Optimized Design of Fast-Switching GaN-based Inverters Utilizing a Digital Prototype in a Standardized Realistic Test Cycle},
year = 2023
}
