DC Short-Circuit Tests of a 50 kV Resistive Superconducting Fault Current Limiter
DC short-circuit tests validate a 50 kV resistive superconducting fault current limiter (RSFCL) for HVDC and MTDC protection.
FEPPCON XII: Sustainable Power Electronics Technology
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.
Electric Field Measurement in Gas-Solid Insulation System under Lightning Impulse
Electric field measurements in a gas-solid insulation system under lightning impulse improve understanding of surface and space charge effects on insulation performance.
Method for DC reactor and DC circuit breaker design in HVDC grids
This paper presents a method for sizing DC reactors and DC circuit breakers in HVDC grids, ensuring effective fault clearing while preventing converter blocking during DC faults.
Techno-economic comparison of grid planning scenarios for AC/DC grids: a North Sea case study
A techno-economic assessment compares AC/DC grid reinforcement strategies for the North Sea, evaluating point-to-point HVDC links, hybrid interconnectors and meshed MTDC grids.
Multi-hypotheses Single-Ended Fault Discrimination in AC Networks with Underground Sections
A single-ended fault discrimination method for hybrid AC networks uses travelling-wave models to identify whether a fault occurs in an overhead or underground line section.
DC FRT Analysis and Disturbance Propagation of Grid-Forming HVDC Converters in Future MTDC Systems
Study of DC fault ride-through and disturbance propagation in MTDC grids with grid-forming HVDC converters, highlighting protection, stability, and resilience challenges.
Endurance Test on Nomex 410 to Assess Partial Discharge Activity under High dv/dt Square Voltage
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.
Reduction of Passive Components in Quasi-2-Level Operated MMC for MVDC DAB Converter
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.
Thermal Measurement of Asymmetric Losses in a Submodule of an Isolated Modular Multilevel DC-DC Converter
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.
