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

Claim 0:
1. A flywheel system comprising:
a rotor forming an aperture,
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,
wherein the rotor is adapted for receiving the shaft and to be maintained between the bottom support and the top support for rotation about the shaft,
at least one magnetic levitation module,
at least one magnetic bearing module adapted to stabilize the rotor in radial relative to the shaft, and
a generator module configured to magnetically convert rotational energy of rotor to an electrical energy output of flywheel system and, conversely, magnetically convert an electrical energy input to flywheel system to rotational energy of rotor,
wherein the at least one magnetic levitation module is configured to support gravitational load of the rotor in axial direction of the shaft, and
wherein the at least one magnetic bearing module is an active magnetic bearing module controlled by feedback from one or more sensors coupled to the shaft inside the aperture and configured to sense at least one of position and motion of the rotor relative to the shaft.