APEC 2017 “Robustness of SiC MOSFET under Avalanche Conditions”
This paper presents the experimental evaluation of SiC MOSFETs from different manufacturers operated in avalanche.
This paper presents the experimental evaluation of SiC MOSFETs from different manufacturers operated in avalanche.
This paper focuses on the set up and the validation of a numerical model for the analysis of the flow in reversible Francis pump-turbines in the S-Shape region. For such operating conditions the flow inside the pump-turbine is characterized by highly unsteady flow separations and complex rotor/stator interactions.
This paper focuses on the set up and the validation of a numerical model for the analysis of the flow in reversible Francis pump-turbines in the S-Shape region. For such operating conditions the flow inside the pump-turbine is characterized by highly unsteady flow separations and complex rotor/stator interactions.
The paper presents a tool for technical and economic assessment of offshore wind power connecting architectures; they highly influence cost effectiveness of offshore wind generation, particularly when power electronic converter based transmission technologies and long distance transmission cables are employed.
The design of reliable high voltage equipment remains a challenge nowadays. The surface charge accumulation at gas/solid interface is a major problem of HVDC GIS/GIL. The electric field can be distorted and the dielectric strength of the system can be thus reduced dramatically due to surface charges.
The development of HVDC networks leads to an increasing need of Gas Insulating Substations (HVDC-GIS). When an insulator is subjected to high thermoelectric dc DC stress, space charge accumulation can induce local increases of the electric field, which must be known and taken into account for the equipment design when the fields exceed several kV/mm.
This paper is aimed at the study of the propagation of discharge at the surface of solid insulator and the development of an analytical model of flashover in air.
This paper is aimed at the comparison of breakdown voltages of SF6 and mixtures at different concentrations of Fluoronitriles in CO2. The experiments are conducted in different electrodes geometries under DC and lightning impulse voltages.
This paper is aimed at the breakdown characteristics of Fluoronitriles – CO2 gas mixtures in different experimental conditions; these mixtures constitute promising substitutes to SF6 gas in high voltage applications especially gas insulating switchgear (GIS).
In order to ensure the energy transmission from remote production stations to load centres, it is well known that High Voltage Direct Current (HVDC) presents some advantages compared to High Voltage Alternative Current (HVAC).