Evaluation of HVDC cable impedance and admittance matrices by finite element method

2019-02-15T16:02:42+01:00February 21st, 2018|Publications, Supergrid Architecture & Systems|

In this work, a 2D Finite Element Method (FEM) is used to calculate the frequency dependent impedance and admittance matrices of underground and submarine cables. A harmonic magnetodynamic formulation is used to calculate the series impedances, and for the calculation of the parallel admittance an electrodynamic formulation is applied.

Robustness study of 1700 V 45 mΩ SiC MOSFETs

2019-02-15T17:06:33+01:00February 15th, 2018|Power Electronics & Converters, Publications|

The threshold voltage instability is a main reliability issue of Silicon Carbide MOSFET transistors. It is a critical parameter when it comes to give a failure in time rate for industrial power applications. In this context, a static ageing test based on JEDEC standard is proposed and the resulting gate oxide degradation is studied and discussed in this paper.

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