Open AccessHydraulic–pneumatic flywheel system in a wind turbine rotor for inertia control
Author(s) -
Jauch Clemens,
Hippel Sebastian
Publication year - 2016
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
eISSN - 1752-1424
pISSN - 1752-1416
DOI - 10.1049/iet-rpg.2015.0223
Subject(s) - flywheel , inertia , turbine , control theory (sociology) , hydraulic machinery , rotor (electric) , engineering , piston (optics) , control engineering , hydraulic accumulator , wind power , electric power system , rotary inertia , power (physics) , automotive engineering , computer science , mechanical engineering , control (management) , physics , electrical engineering , classical mechanics , artificial intelligence , optics , wavefront , quantum mechanics
In this study a flywheel (FW) system, which is integrated in the rotor of a wind turbine (WT), is proposed. It is made of hydraulic–pneumatic piston accumulators and its primary purpose is to provide the power system with inertia. Power system inertia is an essential premise for primary frequency control. The equations describing the system are presented. Simulation results show that the performance of such a FW system is superior to the commonly used approach of using WTs to provide the power system with so‐called synthetic inertia.