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Virtual Shifting Impedance Method for Extended Range High-Fidelity PHIL Testing
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  • Alexandros Paspatis ,
  • Alkistis Kontou ,
  • Zhiwang Feng ,
  • Mazheruddin Syed ,
  • Georg Lauss ,
  • Graeme Burt ,
  • Panos Kotsampopoulos ,
  • Nikos Hatziargyriou
Alexandros Paspatis
National Technical University of Athens, National Technical University of Athens

Corresponding Author:[email protected]

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Alkistis Kontou
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Zhiwang Feng
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Mazheruddin Syed
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Georg Lauss
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Graeme Burt
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Panos Kotsampopoulos
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Nikos Hatziargyriou
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Abstract

A novel power hardware-in-the-loop interface algorithm, the Virtual Shifting Impedance, is developed, validated and demonstrated in this paper. Building on existing interface algorithms, this method involves shifting a part of the software impedance to the hardware side to improve the stability and accuracy of PHIL setups. However, compared to existing approaches, this impedance shifting is realized by modifying the command signals of the power amplifier controller, thus avoiding the requirement for hardware passive components. The mathematical derivation of the Virtual Shifting Impedance interface algorithm is realized step-by-step, while its stability and accuracy properties are thoroughly examined. Finally, the applicability of the proposed method is verified through PHIL simulation results.
Mar 2024Published in IEEE Transactions on Industrial Electronics volume 71 issue 3 on pages 2903-2913. 10.1109/TIE.2023.3269467