Electric field measurements in a gas-solid insulation system under lightning impulse improve understanding of surface and space charge effects on insulation performance.

This paper explores Sustainable Power Electronics and the challenges of reducing material use, environmental impact and end-of-life waste. It highlights the importance of life-cycle thinking, circular economy principles and improved environmental data for designing future power electronic systems.

This study evaluates Partial Discharge Activity in Nomex 410 insulation exposed to high dv/dt square voltage. Based on endurance testing and UHF measurements, the results show that Partial Discharge Activity significantly reduces insulation lifetime in medium-frequency transformers.

This paper presents a Quasi-2-Level operated MMC for MVDC DAB converters. The proposed design reduces passive components while maintaining Zero-Voltage Switching through frequency adaptation and optimized converter design.

This study experimentally quantifies asymmetric losses in an Isolated Modular Multilevel DC-DC Converter (IM2DC) submodule, showing that low-side devices can dissipate up to twice the losses of high-side devices. A thermal imaging-based calorimetric method provides accurate, nonintrusive measurements, supporting future optimization of converter design, thermal management, and reliability.

The insertion of a dielectric barrier between the conductors in gas insulation can improve effectively the insulation performance in high voltage equipment such as MV gas insulated switchgear.