%0 Journal Article
%T Stability Analysis of Grid-Forming MMC-HVDC Transmission Connected to Legacy Power Systems
%+ Polytechnic School of the University of São Paulo (Brazil)
%+ Laboratoire des signaux et systèmes (L2S)
%+ Lactec Institute
%+ Université Gustave Eiffel
%A Lourenço, Luís
%A Perez, Filipe
%A Iovine, Alessio
%A Damm, Gilney
%A Monaro, Renato
%A Salles, Maurício
%< avec comité de lecture
%Z DOC00033964
%@ 1996-1073
%J Energies
%I MDPI
%V 14
%N 23
%P 25p
%8 2021-01-01
%D 2021
%R 10.3390/en14238017
%K POWER SYSTEM STABILITY
%K VOLTAGE SOURCE CONVERTERS
%K MODULAR MULTILEVEL CONVERTER
%K GRIDFORMING CONVERTER
%K FUTURE POWER SYSTEM
%K HIGH-VOLTAGE DIRECT-CURRENT - HVDC
%K ENERGY FUNCTION STABILITY ANALYSIS
%K SYSTEME NON LINEAIRE
%Z Engineering Sciences [physics]/Electric power
%Z Mathematics [math]/Optimization and Control [math.OC]Journal articles
%X The power system is going through a change in its very foundations. More and more power converters are being integrated into the electric grid to interface renewable energy resources and in high-voltage direct-current (HVDC) transmission systems. This article presents a discussion on the stability of power systems when HVDC transmission systems based on modular multilevel converters (MMC) are connected in grid-forming (GFM) mode to the legacy power system using concepts of energy functions and Lyapunov stability theory and considering aspects of the interoperability between GFM converter technologies. As a base for the stability analysis, we review the main GFM converter technologies (droop and virtual synchronous machine), highlighting their differences. Then, we present a model using the center-of-inertia formulation for a multi-machine/multi-GFM converter power system representing a close future scenario of power systems where GFM converters might adopt different technologies. To illustrate the theoretical Lyapunov-based stability analysis, simulations performed in Matlab/Simulink showed the behavior of a 12-bus test system during a frequency disturbance that originated from the sudden connection of a load. To reflect the interoperability of different GFM technologies and the power system, scenarios with one single GFM technology and a scenario with mixed technologies were investigated. For the test system considered, the frequency response with fewer oscillations and a higher frequency nadir was obtained when all GFM converters were operated as VSMs that have a higher inertial response contribution.
%G English
%2 https://centralesupelec.hal.science/hal-03465507/document
%2 https://centralesupelec.hal.science/hal-03465507/file/doc00033964.pdf
%L hal-03465507
%U https://centralesupelec.hal.science/hal-03465507
%~ CNRS
%~ SUP_LSS
%~ INSMI
%~ SUP_SYSTEMES
%~ CENTRALESUPELEC
%~ TDS-MACS
%~ UNIV-PARIS-SACLAY
%~ TEST-HALCNRS
%~ UNIVERSITE-PARIS-SACLAY
%~ GS-ENGINEERING
%~ GS-COMPUTER-SCIENCE
%~ UNIV-EIFFEL
%~ U-EIFFEL