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On the Respective Contributions of Different Grid-Forming Controls to Small-Signal Stability
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  • Yahya Lamrani ,
  • Frédéric Colas ,
  • Thierry Van Cutsem ,
  • Carmen Cardozo ,
  • Thibault Prevost ,
  • Xavier Guillaud
Yahya Lamrani
Univ. Lille, Univ. Lille

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Frédéric Colas
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Thierry Van Cutsem
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Carmen Cardozo
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Thibault Prevost
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Xavier Guillaud
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Abstract

This paper investigates the mechanisms behind converters driven stability and the stabilizing effect of grid-forming control. The study is carried out by analyzing the linearized state space model of different combinations of controls in a multi-infeed system at various operating points. By conducting a parametric sensitivity study and analyzing the participation factors of key eigenvalues of the linearized models, it is confirmed that grid-forming controls bring a stabilizing effect to the system. Moreover, this paper will demonstrate that this effect varies significantly with the considered grid-forming control: whether a current control loop is used or not significantly impacts stability.
23 Jan 2024Submitted to TechRxiv
26 Jan 2024Published in TechRxiv