Customized storage, high voltage, photovoltaic power station

• US 5,684,385 A
• Filed: 03/05/1996
• Issued: 11/04/1997
• Est. Priority Date: 03/24/1995
• Status: Expired due to Term

• Current Assignee: Chartoleaux KG LLC (Intellectual Ventures LLC)
• Original Assignee: Orange S.A.
• Inventors: Aubree, Marc, Guyonneau, Claude
• Primary Examiner(s): Weisstuch, Aaron
• Application Number:
  US08/611,134
• Time in Patent Office: 609 Days
• Field of Search: 136/293, 320/2, 320/6, 320/9, 320/15, 323/906, 429/9
• US Class Current: 307/46
• CPC Class Codes: G05F 1/67 to the maximum power available from a generator, e.g. from solar cell
• CPC Class Codes: H02J 7/35 with light sensitive cells
• CPC Class Codes: Y02B 10/10 Photovoltaic [PV]
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y10S 136/293 Circuits
• CPC Class Codes: Y10S 320/13 Fault detection
• CPC Class Codes: Y10S 323/906 Solar cell systems

Abstract

The present invention relates to a customized storage, high voltage, photovoltaic power station, having at least one photovoltaic solar module and a customized storage device.

Claims

1. A double storage, high voltage, photovoltaic power station having a plurality of photovoltaic solar modules, each comprising a plurality of unitary voltage modules in series-parallel connection, said power station further comprising a main, high voltage storage device constituted by a storage battery, at least one customized storage device, at least one conversion device between the main storage device and the at least one customized storage device, a high voltage link between the main storage device and the conversion device, a charging regulator for the main storage device, and at least one regulating device for each of a plurality of different loads.

2. Station according to claim 1, wherein the photovoltaic solar modules are minimum 55 V, unitary voltage modules.

3. Station according to claim 1, wherein the main storage device is constituted by a plurality of storage batteries connected in series, whose total voltage is at least 220 V and whose capacity is a function of the charge and the desired operating duration without insolation.

4. Station according to claim 3, wherein the storage batteries are either of the large electrolyte reserve, stationary, lead type, or sealed, or cadmium-nickel.

5. Station according to claim 4, wherein the stationary batteries have an electrolyte brazing system.

6. Station according to claim 3, wherein a bypass diode is placed across each storage battery so as to ensure operational continuity in the case of component breakage.

7. Station according to claim 1, wherein the at least one conversion device comprises a plurality of DC/DC converters, arranged in parallel or in series, starting from 220 V DC in order to supply the voltages necessary for a load.

8. Station according to claim 1, wherein the at least one customized storage battery is either large electrolyte reserve, stationary, lead solar batteries or gas recombination, sealed batteries, or cadmium-nickel batteries, the charging and maintenance of said batteries being obtained by DC/DC converters, whose output voltage is regulatable from 20 to 60%.

9. Station according to claim 1, wherein said conversion device comprises a converter equipped with an automatic charging/maintenance passage system corresponding to a voltage change applied to the storage battery components.

10. Station according to claim 9, which comprises a filtering-regulating circuit for regulating the voltage on a load.

11. Station according to claim 9, which wherein said converter comprises DC/DC converters in serial-parallel groups, the capacity of the DC/DC converters taking account of the permanent current particular to the load, as well as the recharging current of the storage batteries.

12. Station according to claim 1, which comprises converters allocated solely to the charging of the batteries.

13. Station according to claim 12, wherein the output voltage of the converters is regulated independently of the output voltage of the converters connected to the loads, the redundancy of the converters being calculated solely on the basis of the needs of the load, the charging circuit for the batteries being a reserve circuit.

14. Station according to claim 1, wherein the high voltage storage is transferable into the customized storage device.

15. Station according to claim 1, which has converters, customized batteries and customized regulators permitting the direct supply of all the loads.

16. Station according to claim 1, which comprises telecommunications equipments completely separate from the power equipments, a completely sealed and thermally insulated enclosure being provided.