Behavioral Modeling and Analysis of Ground Current in Medium-Voltage Inductors

Hongbo Zhao; Dipen Dalal; Jannick Kjær Jørgensen; Michael Moller Bech; Xiongfei Wang; Stig Munk-Nielsen

doi:10.1109/TPEL.2020.3010103

Behavioral Modeling and Analysis of Ground Current in Medium-Voltage Inductors

Hongbo Zhao, Dipen Dalal, Jannick Kjær Jørgensen, Michael Moller Bech, Xiongfei Wang, Stig Munk-Nielsen

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

This letter proposes a behavioral model for analyzing the ground current in medium-voltage (MV) inductors. The impedance between the terminals and the ground connection of inductors is measured by the impedance analyzer, which is capacitive at low frequency. In order to characterize this impedance, a multistage paralleled RLC circuit is proposed. An analytical method is further developed to calculate parameters of the proposed equivalent circuit, which enables to predict the time-domain response of the ground current in MV inductors. A digital twin of the double-pulse-test setup is developed in LTspice, where the simulated ground currents show good agreements with the experimental measurements.

Original language	English
Article number	9143498
Journal	IEEE Transactions on Power Electronics
Volume	36
Issue number	2
Pages (from-to)	1236-1241
Number of pages	6
ISSN	0885-8993
DOIs	https://doi.org/10.1109/TPEL.2020.3010103
Publication status	Published - Feb 2021

Keywords

Behavioral model
digital twin
equivalent circuit
ground current
medium-voltage inductor

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10.1109/TPEL.2020.3010103

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title = "Behavioral Modeling and Analysis of Ground Current in Medium-Voltage Inductors",

abstract = "This letter proposes a behavioral model for analyzing the ground current in medium-voltage (MV) inductors. The impedance between the terminals and the ground connection of inductors is measured by the impedance analyzer, which is capacitive at low frequency. In order to characterize this impedance, a multistage paralleled RLC circuit is proposed. An analytical method is further developed to calculate parameters of the proposed equivalent circuit, which enables to predict the time-domain response of the ground current in MV inductors. A digital twin of the double-pulse-test setup is developed in LTspice, where the simulated ground currents show good agreements with the experimental measurements.",

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AU - Bech, Michael Moller

AU - Wang, Xiongfei

AU - Munk-Nielsen, Stig

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N2 - This letter proposes a behavioral model for analyzing the ground current in medium-voltage (MV) inductors. The impedance between the terminals and the ground connection of inductors is measured by the impedance analyzer, which is capacitive at low frequency. In order to characterize this impedance, a multistage paralleled RLC circuit is proposed. An analytical method is further developed to calculate parameters of the proposed equivalent circuit, which enables to predict the time-domain response of the ground current in MV inductors. A digital twin of the double-pulse-test setup is developed in LTspice, where the simulated ground currents show good agreements with the experimental measurements.

AB - This letter proposes a behavioral model for analyzing the ground current in medium-voltage (MV) inductors. The impedance between the terminals and the ground connection of inductors is measured by the impedance analyzer, which is capacitive at low frequency. In order to characterize this impedance, a multistage paralleled RLC circuit is proposed. An analytical method is further developed to calculate parameters of the proposed equivalent circuit, which enables to predict the time-domain response of the ground current in MV inductors. A digital twin of the double-pulse-test setup is developed in LTspice, where the simulated ground currents show good agreements with the experimental measurements.

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DO - 10.1109/TPEL.2020.3010103

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JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

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Behavioral Modeling and Analysis of Ground Current in Medium-Voltage Inductors

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Keywords

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