Remplacement du SF₆ : de la pression réglementaire aux défis du déploiement industriel
Le remplacement du SF₆ entre dans une phase de déploiement industriel, avec de nouveaux enjeux de conception, de qualification et de fiabilité.
Le remplacement du SF₆ entre dans une phase de déploiement industriel, avec de nouveaux enjeux de conception, de qualification et de fiabilité.
DC short-circuit tests validate a 50 kV resistive superconducting fault current limiter (RSFCL) for HVDC and MTDC protection.
Study of DC fault ride-through and disturbance propagation in MTDC grids with grid-forming HVDC converters, highlighting protection, stability, and resilience challenges.
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.
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.
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.
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.