Authors: Fritz, Jan Niklas
Neeb, Christoph
De Doncker, Rik W.
Editors: Kubis, Andreas
Rehtanz, Christian
Shapovalov, Anton
Hilbrich, Dominik
Title: A PCB Integrated Differential Rogowski Coil for Non-Intrusive Current Measurement Featuring High Bandwidth and dv/dt Immunity
Language (ISO): en
Abstract: In the development of next-generation power modules for electric vehicles, demands for high efficiency, reliability, low cost, high power density and therefore small size are of major importance. A promising approach is the embedding of power semiconductor devices into a printed circuit board (PCB), as investigated by the HI-LEVEL project. This paper deals with the research, design and experimental verification of a current sensor based on the principle of a Rogowski coil, which is integrated into a PCB, so that it can measure the device current of the embedded power semiconductor devices. As switched-mode currents are to be measured, the dynamics of the current sensor were of major concern. Moreover, as large voltage gradients caused by the semiconductor devices inject parasitic capacitive currents into the coil, a differential measurement approach was selected for cancelling out disturbances caused by capacitive coupling.
Subject Headings: Rogowski coil
capacitive coupling
differential Rogowski coil
current sensor
Issue Date: 2015-01-14
Is part of: Power and Energy Student Summit(PESS) 2015, January 13th-14th, Dortmund Germany
Appears in Collections:Power and Energy Student Summit (PESS) 2015

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