SOLAR POWER SYSTEMS OPTIMIZED FOR USE IN COLD WEATHER CONDITIONS

• US 20100275968A1
• Filed: 04/29/2010
• Published: 11/04/2010
• Est. Priority Date: 05/01/2009
• Status: Abandoned Application

• Current Assignee: Alpha Technologies Incorporated (EnerSys)
• Original Assignee: Alpha Technologies Incorporated (EnerSys)
• Inventors: Kaiser, Fredrick, Hoppins, Darren, Le, Thanh
• Application Number:
  US12/770,278
• Publication Number:
  US 20100275968A1
• Time in Patent Office: Days
• US Class Current: 136/244
• CPC Class Codes: H01L 31/02021 for solar cells electrical connection means, e.g. junction boxes, specially adapted for structural association with photovoltaic modules H02S40/34
• CPC Class Codes: H02S 40/12 Means for removing snow
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

A solar power system for supplying electrical energy to a load based on solar energy comprising at least one solar panel, a power supply, and at least one mode select switch. The at least one solar panel comprises at least one solar cell. The at least one mode select switch is operatively connected to the at least one solar panel, the power supply, and the load. The at least one mode select switch is operable in a first mode and in a second mode. In the first mode, the at least one solar cell is capable of supplying electrical energy to the load. In the second mode, the power supply supplies electrical energy to the at least one solar cell such that the at least one solar cell generates heat.

Claims

1. A solar power system for supplying electrical energy to a load based on solar energy comprising:

at least one solar panel comprising at least one solar cell;

a power supply; and

at least one mode select switch operatively connected to the at least one solar panel, the power supply, and the load, where the at least one mode select switch is operable in

a first mode in which the at least one solar cell is capable of supplying electrical energy to the load; and

a second mode in which the power supply supplies electrical energy to the at least one solar cell such that the at least one solar cell generates heat.

2. A solar power system as recited in claim 1, further comprising a power processor, where the power processor operatively connects the at least one solar cell to the load when the at least one mode select switch operates in the first mode.

3. A solar power system as recited in claim 1, in which the at least one solar cell comprises at least one resistive element, where the power supply causes current to flow through the at least one resistive element when the at least one mode select switch operates in the second mode.

4. A solar power system as recited in claim 1, in which, when the at least one mode select switch operates in the second mode, the power supply supplies electrical energy to the at least one solar cell based at least in part on a reference signal.

5. A solar power system as recited in claim 1, further comprising a temperature sensor for generating temperature data indicative of a temperature of the at least one solar panel, where, when the at least one mode select switch operates in the second mode, the power supply supplies electrical energy to the at least one solar cell based at least in part on the temperature data.

6. A solar power system as recited in claim 1, further comprising a temperature sensor for generating temperature data indicative of a temperature of the at least one solar panel, where, when the at least one mode select switch operates in the second mode, the power supply supplies electrical energy to the at least one solar cell based at least in part on the temperature data.

7. A solar power system as recited in claim 1, further comprising an insolation sensor for generating insolation data indicative of an insolation level associated with the at least one solar panel, where the power supply supplies electrical energy to the at least one solar cell based at least in part on the insolation data.

8. A solar power system as recited in claim 1, further comprising

a temperature sensor for generating temperature data indicative of a temperature of the at least one solar panel;

and

an insolation sensor for generating insolation data indicative of an insolation level associated with the at least one solar panel;

wherein

the power supply supplies electrical energy to the at least one solar cell based at least in part on the temperature data and the insolation data.

9. A solar power system as recited in claim 1, further comprising:

a plurality of panel groups each comprising at least one solar panel; and

a panel group switch associated with each of the plurality of panel groups;

wherein

when the at least one mode select switch operates in the second mode, the panel group switches are operable to allow electrical energy to be supplied to the at least one solar panel in a selected one of the panel groups.

10. A solar power system as recited in claim 1, further comprising an energy storage device, wherein:

when the at least one mode select switch operates in the first mode, the solar power system is capable of supplying electrical energy to the load at least in part based on the energy stored in the energy storage device; and

when the at least one mode select switch operates in the second mode, the solar power system is capable of supplying electrical energy to the load at least in part based on the energy stored in the energy storage device.

11. A solar power system as recited in claim 10, in which, when the at least one mode select switch operates in the first mode, the at least one solar cell is capable of supplying electrical energy to the energy storage device.

12. A solar power system as recited in claim 1, further comprising a transducer for moving the at least one solar panel.

13. A solar power system as recited in claim 12, in which the transducer causes the at least one solar panel to vibrate.

14. A solar power system as recited in claim 12, in which the transducer causes the at least one solar panel to tilt.

15. A method of supplying electrical energy to a load based on solar energy comprising the steps of:

providing at least one solar panel comprising at least one solar cell;

providing a power supply; and

operatively connecting at least one mode select switch to the at least one solar panel, the power supply, and the load;

operating the at least one mode select switch in a first mode in which the at least one solar cell is capable of supplying electrical energy to the load; and

operating the at least one mode select switch in a second mode in which the power supply supplies electrical energy to the at least one solar cell such that the at least one solar cell generates heat.

16. A method as recited in claim 15, further comprising the steps of:

generating temperature data indicative of a temperature of the at least one solar panel; and

supplying electrical energy to the at least one solar cell based at least in part on the temperature data when the at least one mode select switch operates in the second mode.

17. A method as recited in claim 15, further comprising the steps of:

generating insolation data indicative of an insolation level associated with the at least one solar panel; and

supplying electrical energy to the at least one solar cell based at least in part on the insolation data when the at least one mode select switch operates in the second mode.

18. A method as recited in claim 15, further comprising the step of moving the at least one solar panel.

19. A solar power system for supplying electrical energy to a load based on solar energy comprising:

at least one solar panel comprising at least one solar cell, where the solar cell comprises at least one resistive element;

a temperature sensor for generating temperature data indicative of a temperature of the at least one solar panel; and

an insolation sensor for generating insolation data indicative of an insolation level associated with the at least one solar panel; and

a current supply; and

at least one mode select switch operatively connected to the at least one solar panel, the current supply, and the load, where the at least one mode select switch is operable in

a first mode in which the at least one solar cell is capable of to supplying electrical energy to the load; and

a second mode in which the current supply supplies current to the at least one resistive element of the at least one solar cell at least in part on the temperature data and the insolation data such that the at least one solar cell generates heat.

20. A solar power system as recited in claim 19, further comprising a transducer for moving the at least one solar panel.