Wind powered electricity generating system
An electrical energy generating system converts wind power to electrical power with a wind deflecting structure that divides wind impinging on the structure into two separate accelerated flow paths. One or more turbines are positioned in proximity to the wind deflecting structure such that a portion of the vanes of the turbine is placed within one of the accelerated flow paths. An energy converter is coupled to the turbine that converts rotary motion of the turbine into electricity.
1. An electrical power generating system adapted for use with a vertical wind deflector cylinder fixed to a ground surface that divides a flow path of wind impinging the structure into two separate accelerated wind flow paths around the cylinder, the cylinder having a solid outer surface, the system comprising:
a spindle configured to be mounted to a top surface of the cylinder;
a cross member configured to be supported on the spindle and to extend from a location on the top surface of the cylinder and terminate beyond an outer periphery of the cylinder;
a turbine mounting shaft suspended from the cross member at a first end distal from the spindle;
a turbine coupled to the turbine mounting shaft, wherein the turbine mounting shaft positions the turbine in proximity to a perimeter of the cylinder such that the turbine is driven by one of the two accelerated flow paths; and
an energy converter coupled to the turbine that converts rotary motion from the turbine into electrical energy.
2. The electrical power generating system of claim 1 wherein the wind deflecting structure is comprises of a flexible shell wrapped around a substantially rigid frame.
3. The electrical power generating system of claim 2 wherein the flexible shell comprises canvas.
4. The electrical power generating system of claim 2 wherein the flexible shell comprises a double walled inflatable plastic shell.
5. The electrical power generating system of claim 1 wherein the turbine and wind deflecting structure are fixed in position relative to one another.
6. The electrical power generating system of claim 1 wherein the turbine is mounted to a moveable turbine frame and wherein the wind power generating system further comprises a frame control actuator that moves the turbine frame to position the turbine in an optimized wind flow path.
7. The electrical power generating system of claim 1 wherein the wind deflecting structure is mounted to a tower.
8. The electrical power generating system of claim 1 wherein the turbine comprises a vertical axis turbine having a vertical axis substantially parallel to a vertical axis of the cylinder.
9. The electrical power generating system of claim 8 wherein the turbine mounting shaft is rotatably suspended from the cross member and wherein the vertical axis turbine is configured to rotate the drive shaft when the vertical axis turbine is driven to rotate by impinging wind and wherein the drive shaft is drivingly coupled to the energy converter.
10. The electrical power generating system of claim 1 wherein the turbine comprises a horizontal axis turbine.
11. The electrical power generating system of claim 1 comprising:
a drive member rigidly coupled to the cross member, the cross member including a bearing surface configured to be rotatably supported on the spindle;
an actuator configured to be mounted to the top surface of the cylinder, the actuator configured to drivingly engage the drive member to produce relative rotary motion between the cross member and the cylinder to position the turbine into an optimized position with respect to the prevailing wind.
12. The electrical power generating system of claim 1 wherein the cross member is configured to extend along a diameter of the top surface of the cylinder to beyond the outer periphery of the cylinder on two sides of the cylinder, and comprising a turbine mounting shaft suspended from each of two distal ends of the cross member and a turbine coupled to each drive shaft.