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A Railway Power Flow Controller with an Adaptive Impedance Coupling in a V–V Traction Power Supply System.

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Title: A Railway Power Flow Controller with an Adaptive Impedance Coupling in a V–V Traction Power Supply System.
Authors: Shayer, Aliasgar P.1 (AUTHOR) aliasgarshayer@gmail.com, Mulla, Mahmadasraf A.1 (AUTHOR) mamulla@ieee.org
Source: Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ). Mar2026, Vol. 51 Issue 6, p7769-7788. 20p.
Subjects: Impedance matching, Hardware-in-the-loop simulation, Power electronics, Electric substations, Microcontrollers
Abstract: A railway power flow controller is a power electronics-based system that controls and manages the flow of power in an electric traction power supply system. The aim is to maintain power flow such that power quality indices are within prescribed limits. This paper proposes thyristor-controlled LC (TCLC) coupling in a railway power flow controller (RPFC) to reduce the power converters' DC link requirement and volt-ampere rating. Accordingly, an adaptive impedance-coupled RPFC is proposed for a V–V transformer-based railway power supply system. The proposed system aims to draw balanced power from the source at unity power factor under highly variable single-phase loads. The control algorithm is further proposed, to derive the reference current for the power converters without calculating the active and reactive powers. An adaptive firing angle adjustment algorithm is also proposed for TCLC control. Operational feasibility of the proposed topology and its control algorithm is verified in a 60 MVA traction substation using a real-time hardware-in-loop experimentation. The power circuit is implemented in a real-time simulator, and the control algorithm is developed using an ARM Cortex-M4 32-bit microcontroller. [ABSTRACT FROM AUTHOR]
Copyright of Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: <searchLink fieldCode="DE" term="%22Impedance+matching%22">Impedance matching</searchLink><br /><searchLink fieldCode="DE" term="%22Hardware-in-the-loop+simulation%22">Hardware-in-the-loop simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Power+electronics%22">Power electronics</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+substations%22">Electric substations</searchLink><br /><searchLink fieldCode="DE" term="%22Microcontrollers%22">Microcontrollers</searchLink>
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  Data: A railway power flow controller is a power electronics-based system that controls and manages the flow of power in an electric traction power supply system. The aim is to maintain power flow such that power quality indices are within prescribed limits. This paper proposes thyristor-controlled LC (TCLC) coupling in a railway power flow controller (RPFC) to reduce the power converters' DC link requirement and volt-ampere rating. Accordingly, an adaptive impedance-coupled RPFC is proposed for a V–V transformer-based railway power supply system. The proposed system aims to draw balanced power from the source at unity power factor under highly variable single-phase loads. The control algorithm is further proposed, to derive the reference current for the power converters without calculating the active and reactive powers. An adaptive firing angle adjustment algorithm is also proposed for TCLC control. Operational feasibility of the proposed topology and its control algorithm is verified in a 60 MVA traction substation using a real-time hardware-in-loop experimentation. The power circuit is implemented in a real-time simulator, and the control algorithm is developed using an ARM Cortex-M4 32-bit microcontroller. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s13369-025-10497-z
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        Text: English
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      – SubjectFull: Impedance matching
        Type: general
      – SubjectFull: Hardware-in-the-loop simulation
        Type: general
      – SubjectFull: Power electronics
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      – SubjectFull: Electric substations
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      – SubjectFull: Microcontrollers
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      – TitleFull: A Railway Power Flow Controller with an Adaptive Impedance Coupling in a V–V Traction Power Supply System.
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              Text: Mar2026
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              Y: 2026
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