Open AccessTorsional oscillation damping in wind turbines with virtual synchronous machine‐based frequency response
Author(s) -
Lu Liang,
SaboríoRomano Oscar,
Cutululis Nicolaos A.
Publication year - 2022
Publication title -
wind energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 92
eISSN - 1099-1824
pISSN - 1095-4244
DOI - 10.1002/we.2719
Subject(s) - control theory (sociology) , drivetrain , oscillation (cell signaling) , frequency response , wind power , controller (irrigation) , automatic frequency control , damping torque , engineering , torque , damping ratio , computer science , vibration , physics , acoustics , control (management) , voltage , induction motor , direct torque control , electrical engineering , agronomy , genetics , artificial intelligence , biology , thermodynamics
In the quest of improving the frequency response capability of wind turbines, control solutions trying to emulate synchronous machines have been proposed. While their performance in terms of frequency support is relatively good, they may trigger torsional oscillations, cause fatigue and damage in the drivetrain, and reduce its lifetime. In this paper, the torsional oscillations caused by a virtual synchronous machine (VSM)‐based frequency controller are illustrated, and methods for damping them are introduced. Two torsional oscillation damping methods are compared and combined to derive an improved method. Dynamic simulation results show better damping performance from the combined damping method.