Energy storage module with XRAM current multiplier
AssigneeRaytheon Company
InventorStephen Kuznetsov
Life of this patent
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Abstract
An electrical machine includes as part of its stator XRAM windings for multiplying current output of the machine. The XRAM windings are coupled to switching elements that are configured to produce current multiplication for output to an external load. The XRAM windings may be in slots in the stator, or may be elsewhere in the stator, operatively coupled to other windings in the stator. The stator may be operatively coupled to a rotor and hence to an inertial energy source, such as a flywheel on the same shaft as the elements of the electrical machine. Short circuiting of select windings of the machine can advantageously cause a shifting and concentration of a machine airgap flux of the machine over other windings, and increasing their magnetic storage energy.
Claims23
A dynamo-electric machine comprising:
- an electromagnetic structure that includes:
- alternating current primary windings;
- and
- polyphase secondary windings;
- an array of switching elements;
- and
- a flywheel rotating mass;
- wherein the primary windings provide a motoring torque on the flywheel rotating mass and magnetize the dynamo-electric machine;
- wherein the electromagnetic structure provides power, derived from transient electromagnetic inductive storage within the electromagnetic structure, to the array of switching elements, with the switching elements configured to produce current multiplication for output to an external load;
- and
- wherein the flywheel rotating mass is operatively coupled to the electromagnetic structure to provide inertial energy storage.
An electrical machine comprising:
- a stator;
- a rotor;
- and
- windings in the stator;
- wherein the stator surrounds the rotor;
- wherein the windings in the stator include:
- main windings for producing output current;
- and
- pulsed winding coils configured for producing a multiplied output that is greater than the output current.
A system comprising:
- two or more electrical machines operatively coupled together;
- wherein outputs of the two or more machines are combinable to power a common load;
- wherein each of the machines is configured to have a different respective shaft speed and/or a different stored energy capability;
- and
- wherein the machines are coupled together for sequential or parallel feeds from the machines.
Dependencies are inferred from the claim text.