Study of interactions between close HVDC links inserted in an AC grid: A mixed nonlinear and modal analysis approach - Archive ouverte HAL Access content directly
Journal Articles International Transactions on Electrical Energy Systems Year : 2019

Study of interactions between close HVDC links inserted in an AC grid: A mixed nonlinear and modal analysis approach

Abstract

This paper focuses on interaction between two closed-connected high-voltage DC (HVDC) lines. This interaction is studied by employing high-fidelity nonlinear modeling in MATLAB R /Simulink R software environment. In order to describe the mechanism behind the HVDCs interaction, both nonlinear time-domain simulations and modal analysis of the coupled HVDC links, have been performed. System small-signal stability has been assessed and the path of interactions has been identified by computing the participations of various states in the oscillatory modes; this sets the preliminaries for a global, grid-oriented HVDCs control design approach. After the detailed analysis of newly-identified coupling oscillations , the minimal modeling requirements to put them into evidence have also been studied; this significantly facilitates the analysis in a realistic large-scale grid context.
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Dates and versions

hal-02510539 , version 1 (17-03-2020)

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Iulian Munteanu, Bogdan Marinescu, Florent Xavier. Study of interactions between close HVDC links inserted in an AC grid: A mixed nonlinear and modal analysis approach. International Transactions on Electrical Energy Systems, 2019, ⟨10.1002/2050-7038.12266⟩. ⟨hal-02510539⟩
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