Impact of Low Rotational Inertia on Power System Stability and Operation

  title={Impact of Low Rotational Inertia on Power System Stability and Operation},
  author={Andreas Ulbig and Theodor S. Borsche and G{\"o}ran Andersson},
  journal={IFAC Proceedings Volumes},
Abstract Large-scale deployment of Renewable Energy Sources (RES) has led to significant generation shares of variable RES in power systems worldwide. RES units, notably inverter-connected wind turbines and photovoltaics (PV) that as such do not provide rotational inertia, are effectively displacing conventional generators and their rotating machinery. The traditional assumption that grid inertia is sufficiently high with only small variations over time is thus not valid for power systems with… 

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