System and method for controlling electrical power distribution

Patent metadata

Field	Value
Publication number	US-11394203-B2
Application number	US-202016997425-A
Country	US
Kind code	B2
Filing date	Aug 19, 2020
Priority date	Aug 19, 2020
Publication date	Jul 19, 2022
Grant date	Jul 19, 2022

Abstract

A distribution system may include at least one Power Management System (PMS) that controls electrical power distributed transmitted by the distribution system. The system may include a first power station located at an onshore platform. The first power station may include an onshore terminal that distributes electric power to the first power station and to at least one onshore load. The first power station may include various onshore reactors that monitor inbound reactive power received from the onshore terminal or that monitor outbound reactive power sent to a remote location. The system may include a second power station located at an offshore platform which is located at the remote location. The second power station may include an offshore terminal that receives electric power from the first power station and that delivers electric power to at least one offshore load.

First claim

What is claimed is:

1. A distribution system, the system comprising:
at least one Power Management System (PMS) that controls electrical power transmitted by the distribution system;
a first power station located at an onshore platform, comprising:
an onshore terminal that distributes electric power to the first power station and to at least one onshore load, and
a plurality of onshore reactors that monitor inbound reactive power received from the onshore terminal or that monitor outbound reactive power sent to a remote location;

a second power station located at an offshore platform which is located at the remote location, the second power station comprising:
an offshore terminal that receives electric power from the first power station and that delivers electric power to at least one offshore load, and
a plurality of offshore reactors that monitor inbound reactive power received from the first power station; and

at least one submarine cable connected between the first power station and the second power station,
wherein the at least one PMS monitors compensation reactive power in the plurality of onshore reactors and the plurality of offshore reactors.

2. The system of claim 1 , wherein the first power station comprises four onshore reactors and the second power station comprises two offshore reactors.

3. The system of claim 2 , wherein the system further comprises a first PMS located at the first power station and a second PMS located at the second power station.

4. The system of claim 3 ,
wherein the first PMS located at the first power station controls the four onshore reactors and the two offshore reactors, and
wherein the second PMS located at the second power station is a hot standby for the first PMS.

5. The system of claim 1 , wherein the system further comprises two submarine cables connected between the first power station and the second power station.

6. The system of claim 1 , wherein the at least one PMS monitors an electrical parameter representative of a performance of the at least one submarine cable and adjusts a reactive compensation of the at least two onshore reactors or the at least two offshore reactors to control the power distributed between the first power station and the second power station.

7. The system of claim 6 , wherein the electrical parameter is a frequency of transmission of the power or a voltage of transmission of the power.

8. The system of claim 1 , wherein the at least one PMS dynamically adjusts compensation reactive power in the plurality of onshore reactors and in the plurality of offshore reactors to maintain a total reactive power of the distribution system at or below a predetermined threshold.

9. A method for distributing electrical power to a remote location from an onshore platform, the method comprising:
configuring at least one Power Management System (PMS) to control electrical power transmitted between a first power station and a second power station;
installing the first power station located at an onshore terminal;
distributing electric power to the first power station and to at least one onshore load;
monitoring, by the at least one PMS, inbound reactive power received from the onshore terminal to the first power station or outbound reactive power sent from the first power station to one or more remote locations;
installing the second power station at an offshore platform, the offshore platform being located at a remote location;
connecting at least one submarine cable between the first power station and the second power station;
receiving electric power from the first power station at the second power station through the at least one submarine cable;
delivering electric power from the second power station to at least one offshore load; and
monitoring, by the at least one PMS, inbound reactive power received from the first power station at the second power station, wherein
the first power station comprises four onshore reactors and the second power station comprises two offshore reactors.

10. The method of claim 9 , further comprising:
dynamically adjusting, by the at least one PMS, compensation reactive power in the four onshore reactors and the two offshore reactors to maintain a total reactive power of the distribution system at or below a predetermined threshold.

11. The method of claim 9 , further comprising:
configuring two PMSs to control the electrical power distributed between the two power stations, a first PMS being located at the first power station and a second PMS being located at the second power station.

12. The method of claim 11 , further comprising:
controlling, by the first PMS located at the first power station, the four onshore reactors and the two offshore reactors, and
performing, by the second PMS located at the second power station, a hot standby function for the first PMS upon disconnection of the first PMS.

13. The method of claim 9 , further comprising:
connecting two submarine cables between the first power station and the second power station.

14. The method of claim 10 , further comprising:
monitoring, by the at least one PMS, an electrical parameter representative of a performance of the at least one submarine cable; and
adjusting, by the at least one PMS, a reactive compensation of at least two onshore reactors or of at least two offshore reactors to control the power distributed between the first power station and the second power station connecting two submarine cables between the first power station and the second power station.

15. The method of claim 14 , wherein the electrical parameter is a frequency of transmission of the power or a voltage of transmission of the power.

16. A non-transitory computer readable medium storing instructions executable by a computer processor, the instructions comprising functionality for:
configuring at least one Power Management System (PMS) to control electrical power transmitted between a first power station and a second power station;
distributing electric power to a first power station and to at least one onshore load located at an onshore platform;
monitoring, by the at least one PMS, inbound reactive power received from an onshore terminal to the first power station or outbound reactive power sent from the first power station to one or more remote locations;
monitoring, by the at least one PMS, electric power received from the first power station at a second power station through at least one submarine cable that connects the first power station and the second power station;
distributing electric power from the second power station to at least one offshore load; and
monitoring, by the at least one PMS, inbound reactive power received from the first power station at the second power station.

17. The non-transitory computer readable medium of claim 16 , wherein the first power station comprises four onshore reactors and the second power station comprises two offshore reactors.

18. The non-transitory computer readable medium of claim 17 , the instructions further comprising functionality for:
configuring two PMSs to control the electrical power distributed between the two power stations, a first PMS being located at the first power station and a second PMS being located at the second power station.

19. The non-transitory computer readable medium of claim 17 , the instructions further comprising functionality for:
controlling, by the first PMS located at the first power station, the four onshore reactors and the two offshore reactors, and
performing, by

Assignees

• Saudi Arabian Oil Co

Inventors

• Alkhardawi Wasseem Ali

Classifications

• H02J3/18 Primary

  Arrangements for adjusting, eliminating or compensating reactive power in networks · CPC title

• H02J2105/52

  for limitation of the power consumption in the networks or in one section of the networks, e.g. load shedding or peak shaving · CPC title

• H02J13/1327

  using optical means · CPC title

• H02J13/14

  the power network being locally controlled, e.g. home energy management systems [HEMS] · CPC title

• H02J3/46

  Controlling the sharing of generated power between the generators, sources or networks · CPC title