Publication

10kV-rated Power Electronics Building Block with Series-Connected 3.3kV SiC MOS-FETs

2026

Abstract

The wider use of single-stage topologies in medium-voltage applications is hindered by the unavailability of high-voltage semiconductors. Series connecting power semiconductors is therefore the only method to achieve needed blocking voltages and engineering efforts are needed to achieve this safely and reliably, especially when dealing with fast switching devices, such as SiC MOSFETs. In this work, with the aim of developing a medium-voltage dual-active bridge converter, a 10 kV half- bridge power electronics building block (PEBB) based on series-connected 3.3 kV SiC MOSFET modules has been designed and tested extensively. The design choices are presented in details, including advanced protection functions integrated into gate drivers, with an emphasis on the static and dynamic voltage balancing strategies, and the experimental results are provided at nominal operating conditions, demonstrating the PEBB operational performances.

Official source

https://infoscience.epfl.ch/entities/publication/f8cdf4ce-9d59-4349-8fca-9d191b047220

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2026

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f8cdf4ce-9d59-4349-8fca-9d191b047220

About this result

Related concepts (32)

Power semiconductor device

A power semiconductor device is a semiconductor device used as a switch or rectifier in power electronics (for example in a switch-mode power supply). Such a device is also called a power device or, when used in an integrated circuit, a power IC. A power semiconductor device is usually used in "commutation mode" (i.e., it is either on or off), and therefore has a design optimized for such usage; it should usually not be used in linear operation. Linear power circuits are widespread as voltage regulators, audio amplifiers, and radio frequency amplifiers.

High-voltage direct current

A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. Most HVDC links use voltages between 100 kV and 800 kV. However, a 1,100 kV link in China was completed in 2019 over a distance of with a power capacity of 12 GW. With this dimension, intercontinental connections become possible which could help to deal with the fluctuations of wind power and photovoltaics.

Power electronics

Power electronics is the application of electronics to the control and conversion of electric power. The first high-power electronic devices were made using mercury-arc valves. In modern systems, the conversion is performed with semiconductor switching devices such as diodes, thyristors, and power transistors such as the power MOSFET and IGBT. In contrast to electronic systems concerned with the transmission and processing of signals and data, substantial amounts of electrical energy are processed in power electronics.

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