Using a Current Shunt for the Purpose of High-Current Pulse Measurement

Measurement of high-current pulses is crucial in some special applications, e.g., electrodynamic accelerators (EA) and converters. In such cases, the current shunts have limitations concerning the frequency bandwidth. To overcome the problem, a method based on the shunt mathematical model is propose...

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Main Authors: Pawel Piekielny, Andrzej Waindok
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/5/1835
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author Pawel Piekielny
Andrzej Waindok
author_facet Pawel Piekielny
Andrzej Waindok
author_sort Pawel Piekielny
collection DOAJ
description Measurement of high-current pulses is crucial in some special applications, e.g., electrodynamic accelerators (EA) and converters. In such cases, the current shunts have limitations concerning the frequency bandwidth. To overcome the problem, a method based on the shunt mathematical model is proposed. In the method, the solution of ordinary differential equations for the RL circuit is carried out in order to obtain the real current shape. To check the method, as a referee, a Rogowski coil dedicated to measuring high-current pulses was used. Additionally, the measurement results were compared with the mathematical model of the tested power supply system. Measurements were made for the short power supply circuit, which allows eliminating the nonlinearity. The calculations were carried out using a circuit model. In order to obtain the parameters of the shunt (resistance and inductance), it was modeled using an ANSYS/Q3D Extractor software. Comparison of calculation and measurement results confirms the correctness of our method. In order to compare results, the normalized root mean square error (NRMSE) was used.
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spelling doaj.art-b6150b2538b142fd9fda5472086803312023-12-03T12:46:24ZengMDPI AGSensors1424-82202021-03-01215183510.3390/s21051835Using a Current Shunt for the Purpose of High-Current Pulse MeasurementPawel Piekielny0Andrzej Waindok1Department of Electrical Engineering and Mechatronics, Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, PL-45758 Opole, PolandDepartment of Electrical Engineering and Mechatronics, Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, PL-45758 Opole, PolandMeasurement of high-current pulses is crucial in some special applications, e.g., electrodynamic accelerators (EA) and converters. In such cases, the current shunts have limitations concerning the frequency bandwidth. To overcome the problem, a method based on the shunt mathematical model is proposed. In the method, the solution of ordinary differential equations for the RL circuit is carried out in order to obtain the real current shape. To check the method, as a referee, a Rogowski coil dedicated to measuring high-current pulses was used. Additionally, the measurement results were compared with the mathematical model of the tested power supply system. Measurements were made for the short power supply circuit, which allows eliminating the nonlinearity. The calculations were carried out using a circuit model. In order to obtain the parameters of the shunt (resistance and inductance), it was modeled using an ANSYS/Q3D Extractor software. Comparison of calculation and measurement results confirms the correctness of our method. In order to compare results, the normalized root mean square error (NRMSE) was used.https://www.mdpi.com/1424-8220/21/5/1835high-current pulsescurrent measurementhigh-current shuntscircuit modelingRogowski coilelectrodynamic accelerators
spellingShingle Pawel Piekielny
Andrzej Waindok
Using a Current Shunt for the Purpose of High-Current Pulse Measurement
Sensors
high-current pulses
current measurement
high-current shunts
circuit modeling
Rogowski coil
electrodynamic accelerators
title Using a Current Shunt for the Purpose of High-Current Pulse Measurement
title_full Using a Current Shunt for the Purpose of High-Current Pulse Measurement
title_fullStr Using a Current Shunt for the Purpose of High-Current Pulse Measurement
title_full_unstemmed Using a Current Shunt for the Purpose of High-Current Pulse Measurement
title_short Using a Current Shunt for the Purpose of High-Current Pulse Measurement
title_sort using a current shunt for the purpose of high current pulse measurement
topic high-current pulses
current measurement
high-current shunts
circuit modeling
Rogowski coil
electrodynamic accelerators
url https://www.mdpi.com/1424-8220/21/5/1835
work_keys_str_mv AT pawelpiekielny usingacurrentshuntforthepurposeofhighcurrentpulsemeasurement
AT andrzejwaindok usingacurrentshuntforthepurposeofhighcurrentpulsemeasurement