Identification of resonance interactions in offshore-wind farms connected to the main grid by MMC-based HVDC system
Artikel i vetenskaplig tidskrift, 2019

The transient stability of an offshore-wind farm connected to the main ac grid by a high-voltage direct current (HVDC) system depends on the control settings of the converters, the grid resonances and the system’s operating conditions. This paper focuses n identifying possible sources of resonance interactions that could endanger the overall stability of this kind of system. For this purpose, the ac-side input admittance/impedance of a full-power converter (FPC) wind turbine and an MMC-based HVDC system are derived and frequency-domain stability analysis tools are used to assess the impact of system and control parameters on stability. The analytical findings are verified through time-domain simulations and recommendations to increase system stability are given accordingly.

Input admittance

Offshore-wind farm

Stability analysis


Modular multilevel converter (MMC)

High-voltage direct current (HVDC)

Resonance interactions


Mebtu Bihonegn Beza

Chalmers, Elektroteknik, Elkraftteknik, Elnät och komponenter

Massimo Bongiorno

Chalmers, Elektroteknik, Elkraftteknik, Elnät och komponenter

International Journal of Electrical Power and Energy Systems

0142-0615 (ISSN)

Vol. 111 101-113


Hållbar utveckling




Annan elektroteknik och elektronik



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