TY - JOUR
T1 - A Review of Traditional Helical to Recent Miniaturized Printed-Circuit-Board Rogowski Coils for Power Electronic Applications
AU - Shi, Yafei
AU - Xin, Zhen
AU - Loh, Poh Chiang
AU - Blaabjerg, Frede
PY - 2020/11
Y1 - 2020/11
N2 - Latest wide-bandgap power devices are switching progressively faster compared with existing silicon devices. Their accurate current measurements for either control or protection have therefore become tougher. One method that can fulfill the requirements is to use a Rogowski coil and its accompanied electronics to form a Rogowski current sensor with high bandwidth, small volume, low cost, and ease of integration. This article therefore aims to review various aspects of the Rogowski current sensor from its history, measuring principles to modern power-electronic applications. The applications have, in turn, motivated a progression from traditional helical to recent miniaturized printed circuit board implementation, in order to improve the overall power density. This progression has similarly been reviewed, together with its various design aspects applied to the winding, integrator, shielding, and parameters of the Rogowski current sensor. Future challenges and directions are then summarized, whose ultimate goal is to maximize accuracy over a wide bandwidth without being affected by radiated and near-field-coupling interferences.
AB - Latest wide-bandgap power devices are switching progressively faster compared with existing silicon devices. Their accurate current measurements for either control or protection have therefore become tougher. One method that can fulfill the requirements is to use a Rogowski coil and its accompanied electronics to form a Rogowski current sensor with high bandwidth, small volume, low cost, and ease of integration. This article therefore aims to review various aspects of the Rogowski current sensor from its history, measuring principles to modern power-electronic applications. The applications have, in turn, motivated a progression from traditional helical to recent miniaturized printed circuit board implementation, in order to improve the overall power density. This progression has similarly been reviewed, together with its various design aspects applied to the winding, integrator, shielding, and parameters of the Rogowski current sensor. Future challenges and directions are then summarized, whose ultimate goal is to maximize accuracy over a wide bandwidth without being affected by radiated and near-field-coupling interferences.
KW - Current sensor
KW - Rogowski coil
KW - printed circuit board (PCB)
KW - wide bandwidth
KW - wide-bandgap semiconductor
UR - http://www.scopus.com/inward/record.url?scp=85089307694&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2020.2984055
DO - 10.1109/TPEL.2020.2984055
M3 - Journal article
SN - 0885-8993
VL - 35
SP - 12207
EP - 12222
JO - I E E E Transactions on Power Electronics
JF - I E E E Transactions on Power Electronics
IS - 11
M1 - 9055120
ER -