Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines

Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines

Parametric fault diagnosis of analog very high-frequency circuits consisting of a distributed parameter transmission line (DPTL) terminated at both ends by lumped one-ports is considered in this paper. The one-ports may include linear passive and active components. The DPTL is a uniform two-conducto...

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Main Authors: Michał Tadeusiewicz, Stanisław Hałgas
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Electronics
Subjects:
analog electronic circuits
distribution and lumped parameters
fault diagnosis
parametric faults
transmission line
Online Access:https://www.mdpi.com/2079-9292/10/5/550
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spelling doaj-6739832cb0b9426b901c4122e67658c12021-02-27T00:04:04ZengMDPI AGElectronics2079-92922021-02-011055055010.3390/electronics10050550Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission LinesMichał Tadeusiewicz0Stanisław Hałgas1Department of Electrical, Electronic, Computer and Control Engineering, Lodz University of Technology, 90-924 ódź, PolandDepartment of Electrical, Electronic, Computer and Control Engineering, Lodz University of Technology, 90-924 ódź, PolandParametric fault diagnosis of analog very high-frequency circuits consisting of a distributed parameter transmission line (DPTL) terminated at both ends by lumped one-ports is considered in this paper. The one-ports may include linear passive and active components. The DPTL is a uniform two-conductor line immersed in a homogenous medium, specified by the per-unit-length (p-u-l) parameters. The proposed method encompasses all aspects of parametric fault diagnosis: detection of the faulty area, location of the fault inside this area, and estimation of its value. It is assumed that only one fault can occur in the circuit. The diagnostic method is based on a measurement test arranged in the AC state. Different approaches are proposed depending on whether the faulty is DPTL or one of the one-ports. An iterative method is modified to solve various systems of nonlinear equations that arise in the course of the diagnostic process. The diagnostic method can be extended to a broader class of circuits containing several transmission lines. Three numerical examples reveal that the proposed diagnostic method is fast and gives quite accurate findings.https://www.mdpi.com/2079-9292/10/5/550analog electronic circuitsdistribution and lumped parametersfault diagnosisparametric faultstransmission line
collection DOAJ
language English
format Article
sources DOAJ
author Michał Tadeusiewicz
Stanisław Hałgas
spellingShingle Michał Tadeusiewicz
Stanisław Hałgas
Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines
Electronics
analog electronic circuits
distribution and lumped parameters
fault diagnosis
parametric faults
transmission line
author_facet Michał Tadeusiewicz
Stanisław Hałgas
author_sort Michał Tadeusiewicz
title Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines
title_short Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines
title_full Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines
title_fullStr Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines
title_full_unstemmed Parametric Fault Diagnosis of Very High-Frequency Circuits Containing Distributed Parameter Transmission Lines
title_sort parametric fault diagnosis of very high-frequency circuits containing distributed parameter transmission lines
publisher MDPI AG
series Electronics
issn 2079-9292
publishDate 2021-02-01
description Parametric fault diagnosis of analog very high-frequency circuits consisting of a distributed parameter transmission line (DPTL) terminated at both ends by lumped one-ports is considered in this paper. The one-ports may include linear passive and active components. The DPTL is a uniform two-conductor line immersed in a homogenous medium, specified by the per-unit-length (p-u-l) parameters. The proposed method encompasses all aspects of parametric fault diagnosis: detection of the faulty area, location of the fault inside this area, and estimation of its value. It is assumed that only one fault can occur in the circuit. The diagnostic method is based on a measurement test arranged in the AC state. Different approaches are proposed depending on whether the faulty is DPTL or one of the one-ports. An iterative method is modified to solve various systems of nonlinear equations that arise in the course of the diagnostic process. The diagnostic method can be extended to a broader class of circuits containing several transmission lines. Three numerical examples reveal that the proposed diagnostic method is fast and gives quite accurate findings.
topic analog electronic circuits
distribution and lumped parameters
fault diagnosis
parametric faults
transmission line
url https://www.mdpi.com/2079-9292/10/5/550
work_keys_str_mv AT michałtadeusiewicz parametricfaultdiagnosisofveryhighfrequencycircuitscontainingdistributedparametertransmissionlines
AT stanisławhałgas parametricfaultdiagnosisofveryhighfrequencycircuitscontainingdistributedparametertransmissionlines
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