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

Claim 16:
17. A flywheel system comprising:
a fixture including 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 configured to, in a generator mode, magnetically convert rotational energy of rotor to an electrical energy and, in a motor mode, magnetically convert an electrical energy to rotational energy of rotor,
a first magnetic levitation module adapted for levitating the rotor above bottom support,
a second magnetic levitation module adapted for limiting upwards movement of rotor toward top support,
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
at least one active magnetic bearing module controlled by feedback from the one or sensors and adapted to stabilize the rotor in radial relative to the shaft.