Harmonic Stability and Distortion in Offshore Wind Farms
Lucia Beloqui Larumbe (TU Delft - DC systems, Energy conversion & Storage)
P Bauera – Promotor (TU Delft - DC systems, Energy conversion & Storage)
Z. Qin – Copromotor (TU Delft - DC systems, Energy conversion & Storage)
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Abstract
One of the main technical challenges in the energy transition is the seamless integration of renewable energies into the grid ensuring, among others, system stability and acceptable power quality levels. This thesis explores the effect that voltage imbalance has on the small-signal stability and harmonic performance of the grid-side converter in grid-following type 4 wind turbine generators (full converter). Within the scope of this thesis is voltage imbalance that appears in steady-state (typically, a low value limited by grid codes and international power quality standards) and also voltage imbalance that appears during transient situations (typically, a higher value due to temporary conditions like faults).