Open AccessImplementation and Performance of a Current Sensor for a Laminated Bus Bar
Author(s) -
Yoshikazu Kuwabara,
Keiji Wada,
Jean-Michel Guichon,
Jean-Luc Schanen,
James Roudet
Publication year - 2018
Publication title -
ieee transactions on industry applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.19
H-Index - 195
eISSN - 1939-9367
pISSN - 0093-9994
DOI - 10.1109/tia.2018.2796538
Subject(s) - power, energy and industry applications , signal processing and analysis , fields, waves and electromagnetics , components, circuits, devices and systems
This paper proposes a current sensor embedded in a laminated bus bar. The proposed sensor is based on the Rogowski coil principle; the sensor can detect the magnetic flux corresponding to a derivative waveform of the current in a laminated bus bar. The electrical stray elements of the sensor depend on its geometry. The magnetic flux generated by the bus bar depends on the current repartition which is a function of the equivalent frequency during current transients. Both phenomena are discussed using partial element equivalent circuit-based software. Thanks to these investigations, the sensor is designed to measure switching waveforms. It is confirmed that the verification of the proposed current sensor embedded in a laminated bus bar can perform the measurement of a switching waveform using a buck converter circuit rated at 50 V and 8 A.