Emerging Trends in Silicon Carbide Power Electronics Design

Mantooth, H. Alan

doi:10.24295/cpsstpea.2017.00016

Cited by 25 publications

(7 citation statements)

References 30 publications

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“…However, there also exists examples of machine designs that can tolerate high dV /dt without suffering increased problems with partial discharges [103]. Therefore, in line with the recent trends, multi-physical design tools are needed for PECs for future industry advancements [104]- [106], where the machine design objectives are included [107].…”

Section: Prospects and Challenges Of Ongoing Pec Developments For mentioning

confidence: 99%

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

et al. 2020

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More electric aircraft (MEA) architectures consist of several subsystems, which must all comply with the settled safety requirements of aerospace applications. Thus, achieving reliability and fault-tolerance represents the main cornerstone when classifying different solutions. Hybrid electric aircraft (HEA) extends the MEA concept by electrifying the propulsive power as well as the auxiliary power, and thereby pushing the limits of electrification. This paper gives an overview of the high-power electrical machine families and their associated power electronic converter (PEC) interfaces that are currently competing for aircraft power conversion systems. Various functionalities and starter-generator (S/G) solutions are also covered. In order to highlight the latest advancements, the efficiency of the world's most powerful aerospace generator (Mark 1) developed within the E-Fan X HEA project is graphically represented and assessed against other rivaling solutions. Motivated by the strict requirements on efficiency, power density, trustworthiness, as well as starting functionalities, supplementary considerations on the system-level design are paramount. In order to highlight the MEA goals and take advantage of all potential benefits, all subsystems must be treated as a whole. It is then shown that the combination of PECs, aircraft grid and electrical machines can be better adapted to benefit the overall system. This survey outlines the influence of these concerns and offers a view of the future technology outlook, as well as covering the present challenges and opportunities.

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Section: Prospects and Challenges Of Ongoing Pec Developments For mentioning

confidence: 99%

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

et al. 2020

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“…These intuitive practices are good, but there are no design rules codifying these practices. Since the power module physical design process is automated [2], [20], PD rules need to be accounted for in module design automation. This work is a step toward providing a methodology or approach to account for PD systematically in the design automation of power modules.…”

Section: Introductionmentioning

confidence: 99%

A Partial Discharge Inception Voltage Modeling Approach

Mukherjee

Evans

Huitink

et al. 2023

IEEE Open J. Power Electron.

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A partial discharge inception voltage modeling approach promoting design-for-reliability considerations in advanced power modules is presented. As power modules are being operated at higher voltages and become more compact to meet power density demands, there is an increased risk of partial discharge, the silent precursor to electrical breakdown that degrades insulation material. The trade-off between voltage class and module compaction must be quantified. This work presents a methodology to model the tradeoff for any substrate and encapsulant material. A surface charge density-based partial discharge inception voltage (PDIV) model was developed to overcome the challenges in electric field-based models. The model consists of a closed-form equation that accepts finite element simulation results as input and produces PDIV as output. The model was experimentally validated for various trace gaps in a 12/25/12 mil alumina DBC using Dow Corning 3-6635 dielectric gel. An expected trend of diminishing returns was observed between PDIV benefit and trace-gap. This approach quantifies this diminishing returns point. To design for reliability, the maximum operating voltage must be limited to the PDIV. For a material set and manufacturing process, this methodology can be used to determine the voltage class and trace gap design rules.

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“…Most commercial SiC power modules are currently packaged using traditional wire bonding. One reason for this could be that the conventional packaging method has already passed a strict power cycle test (20 million cycles without failures) and is certified with the JEDEC standards [36,37]. Another reason is that conventional packaging can be performed using existing processing equipment, requiring no additional investment in equipment development.…”

Section: Introductionmentioning

confidence: 99%

Review of the designs in low inductance SiC half‐bridge packaging

Yang

et al. 2022

IET Power Electronics

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Silicon carbide (SiC) device has become the primary choice for high-efficiency power electronic equipment due to its excellent performance. However, its higher switching frequency and faster switching speed have also incurred new challenges, such as low parasitic inductance packaging. Despite a significant amount of literature to overview the low parasitic inductance packages, most of them focus on total parasitic inductance from different packaging technology. Here, from the viewpoint of partial inductance which includes gate loop, power loop and common source, the designs for different inductances are surveyed. The power loop is further discussed from power terminals, bonding wires and direct bonded copper (DBC) conductor traces. The effects and sources of these inductances are analyzed. Furthermore, the typical design solutions to reduce the inductances are summarized. Finally, the challenges of SiC packages are presented.

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Emerging Trends in Silicon Carbide Power Electronics Design

Cited by 25 publications

References 30 publications

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

High-Power Machines and Starter-Generator Topologies for More Electric Aircraft: A Technology Outlook

A Partial Discharge Inception Voltage Modeling Approach

Review of the designs in low inductance SiC half‐bridge packaging

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