SYSTEM AND METHOD FOR A PROGRAMMABLE ELECTRIC CONVERTER

• US 20140265988A1
• Filed: 03/15/2013
• Published: 09/18/2014
• Est. Priority Date: 03/28/2012
• Status: Active Grant

• Current Assignee: Acme Product Development Limited
• Original Assignee: Acme Product Development Limited
• Inventors: Lee, Randal A.
• Granted Patent: US 9,479,014 B2
• Time in Patent Office: Days
• US Class Current: 318/495
• CPC Class Codes: H02K 1/00 Details of the magnetic circuit magnetic circuits for relays H01H50/16
• CPC Class Codes: H02K 11/33 Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02K 19/106 Motors having windings in the stator and a smooth rotor of material with large hysteresis without windings
• CPC Class Codes: H02K 21/046 with rotating permanent magnets and stationary field winding
• CPC Class Codes: H02K 21/48 Generators with two or more outputs
• CPC Class Codes: H02K 2213/09 Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
• CPC Class Codes: H02K 2213/12 Machines characterised by the modularity of some components
• CPC Class Codes: H02K 47/00 Dynamo-electric converters
• CPC Class Codes: H02K 99/00 Subject matter not provided for in other groups of this subclass
• CPC Class Codes: H02K 99/10 Generators
• CPC Class Codes: H02K 99/20 Motors

Abstract

An electric converter is provided which uses independently controlled field coils to impress a temporary magnetic field on a rotor movable relative to one or more armatures. In some embodiments, the rotor of the programmable electric converter is rotatable with the axis of rotation being on a horizontal or vertical axis. In various embodiments, the electric converter disclosed herein may be adapted for use as a continuous power solution to provide power for a limited period of time in the event of a power outage by absorbing energy and storing it mechanically in the rotor. In some embodiments, the electric converter may be utilized as a generator. In some embodiments, both AC and DC could be simultaneously produced, where AC is generated in one armature coil and DC in another coil. In some embodiments, the programmable electric converter can operate as an AC to AC converter, AC to DC converter, DC to AC converter, or DC to DC converter. In some embodiments, the electro-magnetic converter may be utilized to provide electro-magnetic propulsion to provide precise acceleration profiles and capture regenerative braking energy.

Claims

1. A programmable electric device, comprising:

an armature having a first side and a second side, the armature comprising a plurality of armature coils, each armature coil having two active legs and two armature leads coupled thereto;

a rotor disposed adjacent to the first side of the armature and movable relative thereto, the rotor comprising a magnetizable material operable to have one or more temporary magnetic fields impressed therein, each of the one or more temporary magnetic fields comprising a north pole and a south pole;

a plurality of field coil cells disposed adjacent to the second side of the armature and proximate to the rotor such that the armature is interposed therebetween, the plurality of field coil cells operable to receive electrical power and be energized to generate magnetic fields therein and thereby impress the one or more temporary magnetic fields onto the rotor;

control circuitry coupled to the plurality of field coil cells to control the energization of the plurality of field coil cells, the control circuitry operable to selectively energize the plurality of field coil cells to dynamically control the one or more temporary magnetic fields impressed on the rotor;

wherein movement of the rotor relative to the armature causes the one or more temporary magnetic fields to generate an electric potential in one or more of the plurality of armature coils; and

wherein an electric current flowing in the plurality of armature coils creates a magnetic field to impart magnetic force on the one or more temporary magnetic fields to move the rotor relative to the armature.

2. The programmable electric device of claim 1, wherein:

the control circuitry is operable to vary a magnitude of the magnetic force exerted on the rotor by selectively energizing the plurality of field coil cells to dynamically control the one or more temporary magnetic fields impressed on the rotor.

3. The programmable electric device of claim 1, wherein:

the armature and the rotor are operable as an AC motor when AC power is supplied to the armature leads to produce a rotating magnetic field in the armature and DC power is supplied to the plurality of field coil cells to impress the one or more temporary magnetic fields onto the rotor, the rotating magnetic field exerting the magnetic force on the one or more temporary magnetic fields to cause the rotor to move relative to the armature.

4. The programmable electric device of claim 1, wherein:

the armature and the rotor are operable as a DC motor when DC power is supplied to the armature leads and sequentially pulsed to produce a rotating magnetic field in the armature and DC power is supplied to the plurality of field coil cells to impress the one or more temporary magnetic fields onto the rotor, the rotating magnetic field exerting the magnetic force on the one or more temporary magnetic fields to cause the rotor to move relative to the armature.

5. The programmable electric device of claim 1, wherein:

the armature and the rotor are operable as a DC generator when an input force is applied to the rotor causing the rotor to move relative to the armature and a DC power source is coupled to the plurality of field coil cells to impress the one or more temporary magnetic fields onto the rotor, the motion of the rotor relative to the armature producing a DC potential in the plurality of armature coils.

6. The programmable electric device of claim 5, wherein:

the DC potential is controlled by an amplitude of the electric current applied to the field coil cells and a frequency and time of a duty cycle of the field coil cells and a speed of the movement of the rotor relative to the armature.

7. The programmable electric device of claim 5, wherein:

the one or more temporary magnetic fields persist for a period of time such that the DC potential is produced in a first direction and subsequently in a second direction such that an AC potential is produced at the armature leads of the armature coils.

8. The programmable electric device of claim 5, wherein:

the DC generator is operable as a DC-to-DC power converter.

9. The programmable electric device of claim 1, wherein:

the armature and the rotor are operable as an AC generator when an input force is applied to the rotor causing the rotor to move relative to the armature and a DC power source is coupled to the plurality of field coil cells to impress the one or more temporary magnetic fields onto the rotor, the DC power supplied to the field coil cells being bi-directional such that a polarity of the one or more temporary magnetic fields impressed onto the rotor by the DC power in a first direction can be switch by applying the DC power in a second direction; and

the motion of the rotor relative to the armature and the switching of the polarity of the one or more temporary magnetic fields impressed onto the rotor produces an AC potential in the plurality of armature coils.

10. The programmable electric device of claim 8, wherein:

the AC potential is controlled by an amplitude of the current applied to the field coil cells and a frequency and time of a duty cycle of the field coil cells and a speed of the movement of the rotor relative to the armature.

11. The programmable electric device of claim 1 and further comprising:

a second armature having one or more armature coils adjacent to the rotor such that movement of the rotor relative to the second armature causes the one or more temporary magnetic fields to generate an electric potential in one or more of the armature coils of the second armature.

12. The programmable electric device of claim 11, wherein:

the pole faces of the plurality of field coil cells are disposed adjacent to the second armature.

13. The programmable electric device of claim 1, wherein:

the motion of the rotor relative to the armature is linear.

14. The programmable electric device of claim 1, wherein:

the movement of the rotor relative to the armature is caused by torque forces.

15. A method for utilizing temporary magnetic fields in a programmable electric device operable in multiple modes of operation, the method comprising:

providing a rotor having a magnetizable material on a surface thereof;

providing an armature and a plurality of field coil cells disposed in close proximity to the rotor, the armature having a plurality of armature coils interposed between the rotor and the plurality of field coil cells, each armature coil having two active legs and two armature leads coupled thereto;

coupling the plurality of field coil cells to control circuitry;

impressing one or more temporary magnetic fields onto the rotor by selectively energizing the plurality of field coil cells to generate magnetic fields therein, the temporary magnetic fields comprising a north pole and a south pole;

moving the rotor relative to the armature in a first mode of operation to cause the one or more temporary magnetic fields to generate an electric potential in at least one of the plurality of armature coils; and

applying electric power to the at least one of plurality of armature coils to generate magnetic fields therein in a second mode of operation and impart magnetic force on the one or more temporary magnetic fields to move the rotor relative to the armature.

16. The method of claim 15 and further comprising:

varying a magnitude of the magnetic force exerted on the rotor in the first mode of operation by using the control circuitry to selectively energize the plurality of field coil cells to dynamically control the one or more temporary magnetic fields impressed on the rotor.

17. The method of claim 15 and further comprising:

wherein the electrical power supplied to the at least one of the plurality of armature coils in the second mode of operation is either AC power or pulsed DC power to produce a rotating magnetic field in the armature; and

controlling a magnitude of the magnetic force imparted on the rotor by using the control circuitry to selectively energize the plurality of field coil cells to dynamically control the one or more temporary magnetic fields impressed onto the rotor.

18. The method of claim 15 and further comprising:

varying the electric potential generated in the first mode of operation without changing a speed of the movement of the rotor relative to the armature by using the control circuitry to vary a frequency or an amplitude of the energizing the plurality of field coil cells.

19. The method of claim 15 and further comprising:

providing a second armature having one or more armature coils therein adjacent to the rotor such that movement of the rotor relative to the second armature causes the one or more temporary magnetic fields to generate an electric potential in one or more of the armature coils of the second armature.

20. The method of claim 15, wherein:

the motion of the rotor relative to the armature is linear.