Patent ID: 11923737
Assignee: WATTSUP POWER A/S
Field: Mechanical elements (Mechanical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 17:
18. A method for operating a flywheel system, comprising:
a fixture having a bottom support, a top support, and a shaft connecting the bottom support to the top support and being substantially vertical during operation,
a rotor adapted for rotation about the shaft,
a generator module;
a bottom magnetic levitation module adapted for levitating the rotor above bottom support,
a top magnetic levitation module adapted for limiting upwards movement of rotor toward top support,, wherein the method for operating the flywheel system comprises:
operating the generator module in
a generator mode, by magnetically converting rotational energy of the rotor to electrical energy, or
a motor mode, by magnetically converting electrical energy to rotational energy of rotor,

monitoring the rotation of the rotor by feedback from one or more sensors coupled to the shaft inside an aperture of the rotor and configured to sense at least one of position and motion of the rotor relative to the shaft, and
stabilizing the rotor in radial direction relative to the shaft by at least one active magnetic bearing module controlled by the one or sensors.