ELECTROMAGNETIC PROPULSION SYSTEM HAVING A WIRELESS POWER TRANSFER SYSTEM
First Claim
1. An electromagnetic propulsion system comprising:
- a plurality of primary windings;
a permanent magnet arranged to move with respect to the plurality of primary windings;
a secondary winding disposed in a non-moving relationship with the permanent magnet; and
an excitation energy applied to the plurality of primary windings for creating a magnetic field including a base component and a low frequency harmonic components, and wherein the base component substantially contributes toward motion between the plurality of primary windings and the permanent magnet and the low frequency harmonic components substantially contributes toward generating an electro-motive force in the secondary winding based on displacement between the plurality of primary windings and the permanent magnet.
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Accused Products
Abstract
An electromagnetic propulsion system includes a plurality of primary windings and a permanent magnet arranged to move with respect to the plurality of primary windings. A secondary winding of the system is disposed in a non-moving relationship with the permanent magnet. An excitation energy is applied to the plurality of primary windings for creating a magnetic field that includes a base component and low frequency harmonic components. The base component substantially contributes toward motion between the plurality of primary windings and the permanent magnet and the low frequency harmonic components substantially contributes toward generating an electro-motive force in the secondary winding based on displacement between the plurality of primary windings and the permanent magnet.
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Citations
12 Claims
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1. An electromagnetic propulsion system comprising:
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a plurality of primary windings; a permanent magnet arranged to move with respect to the plurality of primary windings; a secondary winding disposed in a non-moving relationship with the permanent magnet; and an excitation energy applied to the plurality of primary windings for creating a magnetic field including a base component and a low frequency harmonic components, and wherein the base component substantially contributes toward motion between the plurality of primary windings and the permanent magnet and the low frequency harmonic components substantially contributes toward generating an electro-motive force in the secondary winding based on displacement between the plurality of primary windings and the permanent magnet. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An elevator system comprising:
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an elevator car arranged to move along a hoistway defined by a structure; an electrically powered subsystem carried by the elevator car; a plurality of primary windings engaged to the structure and positioned along the hoistway; a permanent magnet coupled to the elevator car, the plurality of primary windings and the permanent magnet configured to impart motion to the elevator car; an excitation energy applied to the plurality of primary windings for creating a magnetic field including a base component and low frequency harmonic components, and wherein the base component substantially contributes toward the motion of the elevator car; and a secondary winding coupled to the elevator car and disposed adjacent to the permanent magnet, and wherein the low frequency harmonic components generates an electro-motive force in the secondary winding based on displacement between the plurality of windings and the elevator car for providing electrical power to the electrically powered subsystems. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification