.Abstract – The goal of this research was to evaluate the potential of homopolar electrodynamic magnetic bearings for flywheel energy storage systems (FESSs). The primary target was a FESS for Low Earth Orbit (LEO) satellites, however, the design can also be easily adapted for Earth-based applications. The main advantages of Homopolar Electrodynamic Bearings compared to more conventional Active...

In this work we aim to analyse the secondary droplets generated by the impact of a single drop on a dry surface with different gaps and edges configurations. Using a shadowgraph technique, the student has to investigate the formed crown and the secondary droplets with statistical methods. For this propose a flywheel experiment has been developed at the Multiphase Flow and Icing department of th...

Flywheels are typically used as storage elements in isolated wind plants, especially those running at almost constant speed, connected to synchronous generators and diesel engines. Nowadays, systems with variable speed are under development, so the amount of available energy in the flywheel is highly increased. In this paper a comparison between an almost constant speed system and variable spee...

This paper evaluates the concerns relating to the forecasted higher penetration of renewable energy within the power grid as it pertains to frequency variations. This is addressed by implementing fast-acting energy storage systems (FESS) at an ideal location within the system. The location is determined through visualizing and analyzing changes in frequency following an event. This study was ca...

Flywheel energy storage has a wide range of applications in grids and transportation. The adoption high-performance components made this technology viable alternative for substituting or complementing other devices. systems are subject to passive discharge attributed primarily electrical machine losses, bearing rolling friction, aerodynamic drag the flywheel rotor. In present study, measurement...

In previous paper the authors successfully developed a vibration suppression device (VSD) that has variable moment of inertia using Magneto-Rheological (MR) fluid. The MR fluid is filled into flywheel. Ferrite particles are clustered when magnetic field applied to flywheel by electromagnets, series mass VSD will be switchable. this seismic tests during switching reinforcement learning focused i...