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US 2022/0158529 A1Published application
Single Substrate Resolver/Rectifier for Brushless Wound Field Synchronous Machines
AssigneeWisconsin Alumni Research Foundation
InventorsDaniel Colin Ludois, Marisa Tisler
Life of this patent
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Abstract
An electrical rotating machine provides an integrated capacitive encoder for control of the stator field and enabling any of reduced size, reduced rotational inertia, and lower cost. The same structure may also support capacitive plates for capacitive power transfer to the rotor.
Claims20
An electrical rotating machine comprising:
- a stator for providing a magnetic field;
- a rotor providing a second magnetic field mounted for rotation about a rotor axis with respect to the stator and including at least one electrical coil having a coil axis with a component perpendicular to the axis;
- a brushless AC power coupler communicating AC power to the rotor from a source stationary to the stator;
- a capacitive encoder providing an opposed stationary and rotational support separated by a gap with the rotational support mounted to the rotor and the stationary support stationary to the stator, each of the stationary and rotational supports having respective opposed electrical plates having a capacitive coupling adapted to provide a rotation signal indicating rotation of the rotor with respect to the stator;
- and
- solid-state power conversion circuitry held on the rotational support communicating electrical power between the brushless AC power coupler and the electrical coil.
3 more elements
Dependencies are inferred from the claim text.