Novel Si-SiC hybrid switch and its design optimization path

Kayser, Felix; Pfirsch, F.; Niedernostheide, F.‐J.; Baburske, Roman; Eckel, Hans-Günter

doi:10.1109/ispsd49238.2022.9813676

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…SiC-based converters remain, however, one of the most expensive components in BEVs, and the one most likely to fail after the battery pack [11]. Hybrid solutions combining different types of devices in parallel have been proposed in [14], [17], [19], to combine the properties of both devices obtaining an average efficiency (see Fig. 2).…”

Section: Vehicle Model Descriptionmentioning

confidence: 99%

“…Recently, a new converter switching concept has been introduced in [7], [14]: the AHS is an extension of the Cross Switch (XS) Hybrid concept, originally comprising a fixed parallel arrangement of Silicon Insulated-Gate Bipolar Transistors (IGBTs) and unipolar SiC Metal-Oxide-Semiconductor Field-Effect Transistors (MOS-FETs), hence relying on the different electrical characteristics of both devices. In the AHS, the Si-IGBT to the SiC-MOSFET ratio is dynamically adjusted through the gate units depending on the load conditions, resulting in a variable configuration of the converter.…”

Section: Introductionmentioning

confidence: 99%

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Enhancing Efficiency and Reliability of Electric Vehicles via Adaptive E-Gear Control

Sandel,

Zardini,

Mitrova

et al. 2023

2023 IEEE 26th International Conference on Intelligent Transportation Systems (ITSC)

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Battery Electric Vehicles (BEVs) offer a sustainable alternative to Internal Combustion Engine Vehicles (ICEVs). This paper addresses some of the challenges faced by the automotive industry and the scientific community in defining the technology for the next generation of automotive power converters. The focus is on achieving an improved drivetrain's energy efficiency, enhancing drivetrain reliability, while minimizing costs to enable large-scale adoption of BEVs and Hybrid Electric Vehicles (HEVs).The paper leverages an automotive converter equipped with the recently developed Adjustable Hybrid Switch (AHS) based electric gear and proposes a reliability-based control algorithm for operating the converter E-Gear (EG) of BEVs. By integrating reliability control principles, the proposed algorithm minimizes system damage over time and enhances the converter's lifetime. The case studies, based on standardised driving cycles, demonstrate the benefits of the presented approach in terms of energy losses and lifetime expectations. Overall, this work contributes a novel approach to drivetrain control in BEVs, highlighting the potential of the proposed control strategy to improve energy efficiency and reliability. The research findings provide valuable insights for the development of next-generation automotive power converters.

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Section: Vehicle Model Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancing Efficiency and Reliability of Electric Vehicles via Adaptive E-Gear Control

Sandel,

Zardini,

Mitrova

et al. 2023

2023 IEEE 26th International Conference on Intelligent Transportation Systems (ITSC)

View full text Add to dashboard Cite

show abstract

“…In the 1200V blocking voltage devices, the available technologies are Si IGBT and SiC MOSFET. The Si/SiC hybrid switch (HyS) is the combination of these two technologies to take advantage of the best characteristics of the SiC MOSFET (fast commutation, low switching losses and low conduction losses at small currents), and those of the IGBT (low voltage drop at high currents and lower cost than SiC) [1]- [3]. The typical circuit of this HyS is shown in Figure 1, where we specifically represent the parasitic inductance between the components, a key element in the dynamics studied in this paper.…”

Section: Introductionmentioning

confidence: 99%