IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0097986
(2005-12-19)
|
등록번호 |
US-8251614
(2012-08-28)
|
국제출원번호 |
PCT/EP2005/013652
(2005-12-19)
|
§371/§102 date |
20080925
(20080925)
|
국제공개번호 |
WO2007/071266
(2007-06-28)
|
발명자
/ 주소 |
- Karstad, Vemund
- Skjellnes, Asle Einar
|
출원인 / 주소 |
- Siemens Aktiengesellschaft
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
7 |
초록
▼
An electrical power system for stationary or movable subsea loads (7) provides one common feeder for multiple electric motors which can be individually controlled. Operational flexibility and operational safety for operation in varying water depths is provided by encapsulating electrical functional
An electrical power system for stationary or movable subsea loads (7) provides one common feeder for multiple electric motors which can be individually controlled. Operational flexibility and operational safety for operation in varying water depths is provided by encapsulating electrical functional element (6) of a subsea power system with a subsea electrical distribution system (5) individually or in-groups. Electrical functional element (6) and their semi-conductor elements are arranged within at least one fluidized internal pressure casing (13). An external pressure casing (12) is provided for the subsea electrical distribution system (5) and/or other components of the subsea system. A high frequency power transmission to the subsea pressurized distribution system (5) with pressurized semi-conductor components reduces weight and size of subsea transformers (4b) and cables (9) employed in subsea systems (10).
대표청구항
▼
1. Electrical power system for a subsea system comprising: at least one subsea power distribution system receiving power from a power source, said subsea power distribution system configured to distrubute power to a plurality of electrical functional components, and at least one connecting member fo
1. Electrical power system for a subsea system comprising: at least one subsea power distribution system receiving power from a power source, said subsea power distribution system configured to distrubute power to a plurality of electrical functional components, and at least one connecting member for at least one electrical load for subsea operation,wherein a first pressurized casing is provided for the subsea power distribution system,wherein at least one second pressurized casing is provided for the electrical functional components,wherein the external pressurized casing is at least partially filled with a first non-air, non-seawater fluid and the at least one internal pressurized casing is at least partially filled with a second non-air, non-seawater fluid, such that the first pressurized casing and the second pressurized casing are arranged in a two-stage pressure system. 2. Electrical power system according to claim 1, wherein the at least one second pressurized casing is provided for pressurizing at least one electrical functional component or at least one of its parts. 3. Electrical power system according to claim 1, wherein the second fluid comprises a liquid. 4. Electrical power system according to claim 3, wherein the second fluid comprises oil or a liquid comprising oil. 5. Electrical power system according to claim 1, wherein the first fluid comprises a gas or a mixture of gases. 6. Electrical power system according to claim 5, wherein the first fluid comprises nitrogen. 7. Electrical power system according to claim 1, wherein at least one electrical functional component comprises semi-conductor elements. 8. Electrical power system according to claim 7, wherein at least one electrical functional component comprising semi-conductor elements is a cycloconverter. 9. Electrical power system according to claim 7, wherein at least one semi-conductor element is a thyristor. 10. Electrical power system according to claim 7, wherein one electrical functional component comprising semi-conductor elements, said electrical functional component being arranged within a particular second pressurized casing, is provided for each connecting member of the subsea system. 11. Electrical power system according to claim 7, wherein, at least one electrical functional component comprising semi-conductor elements, said electrical functional component being arranged within a particular second pressurized casing, is provided for connection to the power source. 12. Electrical power system according to claim 7, wherein the at least one connecting member for at least one electrical load is a subsea plug. 13. Electrical power system according to claim 7, wherein the subsea power distribution system is static. 14. Electrical power system according to claim 1, comprising at least one topside converter providing an output frequency of at least 100 Hz to be transmitted to the subsea system and comprising at least one cable for power transmission to the subsea system, said cable being connected to the topside converter and said cable being connected to the subsea system. 15. Electrical power system according to claim 14, wherein the output frequency of the converter is at least 200 Hz. 16. Electrical power system according to claim 14, wherein the output frequency of the converter is at least 300 Hz. 17. Electrical power system according to claim 14, wherein the output frequency of the converter is at least 380 Hz. 18. Electrical power system according to. claim 1, wherein: the first pressurized casing encapsulates the subsea power distribution system, and the at least one second pressurized casing is encapsulated win the first pressurized casing. 19. Electrical power system according to claim 1, wherein: the first pressurized 'casing is internally pressurized by the first. fluid and externally pressurized by seawater; andthe at least one second pressurized casing is internally pressurized by the second fluid and externally pressurized by. the first fluid. 20. Method for operating a plurality of electrical functional components in a subsea application, comprising: providing a subsea power distribution for distributing power from a power source to the plurality of electrical functional components,wherein a first pressurized casing is provided for the subsea power distribution system,wherein at least one second pressurized casing is provided for the plurality of electrical functional components, andwherein the first pressurized casing is at least partially filled with a first non-air, non-seawater fluid and the at least one second pressurized casing is at least partially filled with a second non-air, non-seawater fluid, such that the first pressurized casing and the second pressurized casing are arranged in a two-stage pressure system; andproviding power to the at least one electrical functional component via the subsea power distribution system. 21. Subsea remotely operated vehicle with an electrical power system comprising at least one subsea power distribution system receiving power from a power source, and distributing the received power to a plurality of electrical functional components, and at least one connecting member for a propulsion system for the subsea remotely operated vehicle, wherein a first pressurized casing is provided for the subsea power distribution system,wherein at least one second pressurized casing, is provided for the a plurality of electrical functional components, andwherein the first pressurized casing is at least partially filled with a first non-air, non-seawater fluid and the at least one second pressurized casing is at least partially filled with a second non-air, non-seawater fluid, such that the first pressurized casing and the second pressurized casing are arranged in a two-stage pressure system.
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