Blar i Publikasjoner fra CRIStin - SINTEF Energi på forfatter "Wang, Wei"
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Apparatus for loss measurements under multidirectional and dc-bias flux in electrical steel laminations
Wang, Wei; Nysveen, Arne; Magnusson, Niklas (Peer reviewed; Journal article, 2020)Conventional standardized power loss measurements for electric steels are performed at flux densities with a single sinusoidal and unidirectional excitation. However, the flux inside electrical steel laminations can deviate ... -
Common and differential mode of dc-bias in three-phase power transformers
Wang, Wei; Nysveen, Arne; Magnusson, Niklas (Peer reviewed; Journal article, 2022)Dc magnetization due to the geomagnetically induced currents (GICs) and HVDC (High Voltage Direct Current) systems may cause core saturation and result in serious destruction in the transformer performance as well as the ... -
The influence of multidirectional leakage flux on transformer core losses
Wang, Wei; Nysveen, Arne; Magnusson, Niklas (Peer reviewed; Journal article, 2021)In a power transformer, the leakage flux enters the laminations of the iron core in different directions. Depending on the orientation of the leakage flux, it can add eddy current and hysteresis losses to the well-documented ...