Wind Energy Generating and Storing System

• US 20120038170A1
• Filed: 04/28/2010
• Published: 02/16/2012
• Est. Priority Date: 04/28/2009
• Status: Abandoned Application

• Current Assignee: Alex J. Stuart, Justin David Phillips
• Original Assignee: Alex J. Stuart, Justin David Phillips
• Inventors: Stuart, Alex J., Phillips, Justin David
• Application Number:
  US13/266,596
• Publication Number:
  US 20120038170A1
• Time in Patent Office: Days
• US Class Current: 290/55
• CPC Class Codes: F03D 13/20 Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
• CPC Class Codes: F03D 3/005 the axis being vertical
• CPC Class Codes: F03D 7/06 the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
• CPC Class Codes: F03D 9/007 the wind motor being combined with means for converting solar radiation into useful energy
• CPC Class Codes: F03D 9/17 storing energy in pressurised fluids
• CPC Class Codes: F03D 9/25 the apparatus being an electrical generator F03D9/22 takes precedence
• CPC Class Codes: F03D 9/28 the apparatus being a pump or a compressor
• CPC Class Codes: F05B 2220/704 the other apparatus being a gas turbine
• CPC Class Codes: F05B 2220/706 an electrical generator
• CPC Class Codes: F05B 2240/40 Use of a multiplicity of similar components
• CPC Class Codes: F05B 2250/25 helical
• CPC Class Codes: Y02E 10/728 Onshore wind turbines
• CPC Class Codes: Y02E 10/74 Wind turbines with rotation axis perpendicular to the wind direction
• CPC Class Codes: Y02E 60/16 Mechanical energy storage, e.g. flywheels or pressurised fluids
• CPC Class Codes: Y02E 70/30 Systems combining energy storage with energy generation of non-fossil origin

Abstract

A wind energy system includes a vertical-axis turbine and a compressor driven by the turbine. The turbine includes blades supported on a central rotor by respective support arms having an airfoil shape so as to generate a load on the rotor in an axial direction so as to affect the performance of the compressor. The compressor rotor and the turbine rotor can be integrally coupled with one another for rotation together about a common vertical axis to minimize drive transmission losses. A primary and a secondary compressed air driven generators generate respective primary and secondary electricity from a common source of compressed air. The primary generator is controlled by an electrical controller which is powered by the secondary electricity.

Claims

1. A wind energy system comprising:

a vertical-axis turbine comprising;

a supporting structure;

a turbine rotor supported on the supporting structure for rotation about a vertical axis relative to the supporting structure;

a plurality of turbine blades supported on the turbine rotor at circumferentially spaced locations about the vertical axis so as to be rotatable with the rotor about the vertical axis; and

a plurality of support arms spanning radially outward from the turbine rotor to support the turbine blades thereon spaced outwardly from the rotor;

the turbine blades of the vertical-axis turbine having an airfoil shape in cross section and being oriented such that the blades generate a torque in an operating direction of rotation of the turbine about the vertical axis responsive to a generally horizontal wind across the blades as the blades are rotated in the operating direction of rotation;

the support arms of the vertical-axis turbine having an airfoil shape in cross section and being oriented such that the support arms generate a load on the turbine rotor in an axial direction of the vertical axis responsive to rotation of the rotor in the operating direction of rotation;

a turbomachine comprising a casing and a turbomachine rotor which are rotatable relative to one another, one of the casing and the turbomachine rotor being coupled to the turbine rotor so as to rotate responsive to rotation of the turbine rotor.

2. The system according to claim 1 wherein the turbomachine comprises an air compressor comprising:

a stator including an inlet end and an outlet end; and

a compressor rotor supported for rotation relative to the stator about the vertical axis of the vertical-axis turbine;

the compressor rotor being arranged to compress air from the inlet end to the outlet end of the stator responsive to rotation of the compressor rotor relative to the stator; and

the compressor rotor being coupled to the turbine rotor so as to rotate responsive to rotation of the turbine rotor.

3. The system according to claim 1 wherein the support arms are oriented such that the support arms are arranged to provide an upward lifting force to the turbine rotor responsive to rotation of the turbine rotor in the operating direction of rotation.

4. The system according to claim 1 wherein there is provided at least one sealing member in sealing engagement between the casing and the turbomachine rotor and wherein the support arms are oriented such that the support arms are arranged to provide a compressive force in an axial direction of the vertical axis on said at least one sealing member in sealing engagement between the casing and the turbomachine rotor.

5. The system according to claim 1 wherein one of the casing and the turbomachine rotor are integrally coupled with the turbine rotor so as to be rotatable together about the vertical axis.

6. The system according to claim 2 wherein the air compressor comprises a spiral compressor in which one of the compressor rotor and the stator comprises a housing and the other one of the compressor rotor and the stator comprises a spiral member supported within the housing for rotation relative to the housing about the vertical axis, the housing and the spiral member comprising cooperating surfaces arranged to compress air therebetween from the inlet end to the outlet end responsive to relative rotation between the housing and the spiral member.

7. The system according to claim 2 wherein the stator comprises the spiral member and the compressor rotor comprises the housing, the turbine rotor being formed integrally with the compressor rotor such that the turbine blades are supported directly on the housing of the air compressor for rotation together therewith about the spiral member.

10. The system according to claim 2 further comprising:

at least one compressed air storage container in communication with the outlet end of the stator of the air compressor so as to be arranged to receive and store compressed air therein;

an electric controller arranged to controllably release a flow of compressed air from said at least one compressed air storage container;

a primary compressed air driven generator arranged to generate primary electricity responsive to a flow of compressed air;

a secondary compressed air driven generator arranged to generate secondary electricity responsive to a flow of compressed air; and

the electric controller being operable using the secondary electricity generated by the secondary compressed air driven generator.

11. The system according to claim 10 wherein the primary and secondary compressed air driven generators are coupled to said at least one compressed air storage container such that the secondary compressed air driven generator receives a smaller flow of compressed air than the primary compressed air driven generator.

12. The system according to claim 10 wherein the secondary compressed air driven generator is coupled to said at least one compressed air storage container such that the secondary compressed air driven generator receives a continuous flow of compressed air.

13. The system according to claim 10 wherein there is provided an electrical power regulator arranged to regulate the primary electricity generated by the primary compressed air driven generator, the electrical power regulator being operable using secondary electricity generated by the secondary compressed air driven generator.

14. The system according to claim 10 wherein there is provided a plurality of primary compressed air driven generators arranged to generate electricity responsive to a flow of compressed air, the plurality of primary compressed air driven generators being selectively operable in stages by the controller which uses the secondary electricity generated by the secondary compressed air driven generator.

15. The system according to claim 10 wherein there is provided a valve mechanism arranged to controllably communicate compressed air from said at least one compressed air storage container to the primary compressed air generator and the controller is arranged to control the valve mechanism using the secondary electricity generated by the secondary compressed air driven generator.

16. The system according to claim 1 wherein there is provided a permanent magnet electric generator comprising an electromagnetic coil and a permanent magnet supported for rotation relative to the electromagnetic coil, one of the permanent magnet and the electromagnetic coil being coupled to the turbine rotor for rotation therewith about the vertical axis of the turbine such that the electromagnetic coil is arranged to generate an electrical current responsive to rotation of the turbine rotor.

17. The system according to claim 16 wherein the electromagnetic coil is supported on the supporting structure and the permanent magnet is supported on the turbine rotor for rotation about the electromagnetic coil.

18. The system according to claim 17 wherein there is provided an electrical controller arranged to supply electrical current to the electromagnetic coil such that the electromagnetic coil resists movement relative to the permanent magnet in the operating direction of rotation.

19. The system according to claim 16 wherein the turbomachine comprises an air compressor comprising:

a stator including an inlet end and an outlet end; and

a compressor rotor supported for rotation relative to the stator about the vertical axis of the vertical-axis turbine;

the compressor rotor being arranged to compress air from the inlet end to the outlet end of the stator responsive to rotation of the compressor rotor relative to the stator; and

the compressor rotor being coupled to the turbine rotor so as to rotate responsive to rotation of the turbine rotor;

the system further comprising;

at least one compressed air storage container in communication with the outlet end of the stator of the air compressor so as to be arranged to receive and store compressed air therein; and

an auxiliary compressor including a stator and compressor rotor driven by an electric motor and arranged to compressed air and communicate the compressed air to said at least one compressed air storage container;

the electric motor being coupled to the permanent magnet electric generator such that the permanent magnet electric generator is arranged to drive the auxiliary compressor.

20. The system according to claim 1 wherein the turbomachine comprises an air compressor comprising:

a stator including an inlet end and an outlet end; and

a compressor rotor supported for rotation relative to the stator about the vertical axis of the vertical-axis turbine;

the compressor rotor being arranged to compress air from the inlet end to the outlet end of the stator responsive to rotation of the compressor rotor relative to the stator; and

the compressor rotor being coupled to the turbine rotor so as to rotate responsive to rotation of the turbine rotor;

the system further comprising;

at least one compressed air storage container in communication with the outlet end of the stator of the air compressor so as to be arranged to receive and store compressed air therein;

an auxiliary compressor including a stator and compressor rotor driven by an electric motor and arranged to compressed air and communicate the compressed air to said at least one compressed air storage container; and

a solar panel arranged to supply solar generated electricity to drive the electric motor of the auxiliary compressor.

21. The system according to claim 1 wherein the turbomachine comprises an air compressor comprising:

a stator including an inlet end and an outlet end; and

a compressor rotor supported for rotation relative to the stator about the vertical axis of the vertical-axis turbine;

the compressor rotor being arranged to compress air from the inlet end to the outlet end of the stator responsive to rotation of the compressor rotor relative to the stator; and

the compressor rotor being coupled to the turbine rotor so as to rotate responsive to rotation of the turbine rotor;

the system further comprising;

at least one compressed air storage container in communication with the outlet end of the stator of the air compressor so as to be arranged to receive and store compressed air therein;

a controller arranged to control operation of the turbine in which the controller and said at least one compressed air storage container are located at a remote location separate from the vertical-axis turbine;

a plurality of modular communicating members connected in series between the turbine and the remote location of the controller and said at least one compressed air storage container;

each communicating member comprising a compressed air passage in communication between opposed tubing connectors and an electrical communicating member integrally attached alongside the compressed air passage in communication between opposed electrical connectors;

the opposed electrical connectors being arranged for mating connection with the electrical connectors of adjacent ones of the communicating members together with mating connection of the tubing connectors with the tubing connectors of the adjacent ones of the communicating members.

8. (canceled)

9. (canceled)

22-38. -38. (canceled)

39. A wind energy system comprising:

a vertical-axis turbine comprising;

a supporting structure;

a turbine rotor supported on the supporting structure for rotation about a vertical axis relative to the supporting structure; and

a plurality of turbine blades supported on the rotor at circumferentially spaced locations about the vertical axis so as to be rotatable with the rotor about the vertical axis;

the blades of the vertical-axis turbine having an airfoil shape in cross section and being oriented such that the blades generate a torque in an operating direction of rotation of the turbine about the vertical axis responsive to a generally horizontal wind across the blades as the blades are rotated in the operating direction of rotation;

a turbomachine comprising a casing and a turbomachine rotor which are rotatable relative to one another;

wherein one of the casing and the turbomachine rotor are integrally coupled with the turbine rotor so as to be rotatable together about the vertical axis.

40-50. -50. (canceled)