Blindvermogen opnemen wordt toch spannend.
Het is niet voor niets dat men zoveel mogelijk "draaiend ijzer" online wilt houden.
Power engineers worry that, as more renewables are added to the grid, replacing old coal, gas and nuclear plants, we will lose lock-step AC synchronous system stability, since the latter had large heavy rotating turbo-generators that provided system inertia against frequency perturbations. The big plants’ rotational inertia acts as a buffer to grid frequency changes, and to varying supply and inductive loads. However, PV solar has no rotational inertia, and wind turbines not much, though direct drive machines can provide some. With more renewables on the grid it will become more of an issue.
[Bericht gewijzigd door Sine op 20 juni 2019 12:52:52 (71%)]