Wideband contactless current sensing using hybrid magnetoresistor-Rogowski sensor in high frequency power electronic converters

High frequency power electronic converters having switching frequency higher than 1MHz require wideband, isolated and loss-less current measurement for effective controls, diagnostics and prognostics. In this work, we propose a wideband and contactless current sensing method for isolated and loss-le...

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Main Authors: Nibir, Shahriar Jalal, Hauer, Sven, Biglarbegian, Mehrdad, Parkhideh, Babak
Format: Conference Proceeding
Language:English
Subjects:
AMR
Current measurement
current sensor
hybrid sensor
Magnetoresistor
Power electronics
Prototypes
Rogowski coil
Sensors
Wideband
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Hauer, Sven
Biglarbegian, Mehrdad
Parkhideh, Babak
description High frequency power electronic converters having switching frequency higher than 1MHz require wideband, isolated and loss-less current measurement for effective controls, diagnostics and prognostics. In this work, we propose a wideband and contactless current sensing method for isolated and loss-less current measurement in high frequency power electronic converters. The proposed method combines two different sensing technologies - a Magnetoresistor sensor and a differential Rogowski coil sensor, which have complementary characteristics to achieve a wide sensing bandwidth. We demonstrate through hardware prototypes and experiments that the proposed hybrid sensor yields to a very high sensing bandwidth of DC to 10MHz. The performance of the hybrid sensor is also evaluated in a 1MHz buck converter.
doi_str_mv 10.1109/APEC.2018.8341121
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source IEEE Xplore All Conference Series
subjects AMR
Current measurement
current sensor
hybrid sensor
Magnetoresistor
Power electronics
Prototypes
Rogowski coil
Sensors
Wideband
title Wideband contactless current sensing using hybrid magnetoresistor-Rogowski sensor in high frequency power electronic converters
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