US 11,601,011 B2Granted

Power supply system for an offshore platform

AssigneeEquinor Energy AS

InventorTrond Normann Sivertsen Torvund

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Abstract

An offshore oil and gas platform has a power supply system with a cascaded arrangement for a black start. The power supply system includes a first power supply apparatus for providing power at a first energy level, an uninterruptible power supply arrangement configured to receive power from the first power supply apparatus, wherein the uninterruptible power supply is for powering at least one essential and/or safety critical component, and a second power supply apparatus for providing power at a second energy level to a main power distribution system, wherein the second energy level is higher than the first energy level, wherein the second power supply apparatus includes a power source and a high-power energy storage system capable of supplying power at the second energy level, and wherein the second power supply apparatus can receive and store energy from the first power supply apparatus.

Claims21

Dependent claims

A power supply system for an offshore oil and gas platform, the power supply system comprising:

a first power supply apparatus for providing power at a first energy level;
an uninterruptible power supply arrangement configured to receive power from the first power supply apparatus, wherein the uninterruptible power supply is for powering at least one essential and/or safety critical component of the oil and gas platform;
a second power supply apparatus for providing power at a second energy level to a main power distribution system of the offshore platform, wherein the second energy level is higher than the first energy level, wherein the second power supply apparatus comprises a power source and a high-power energy storage system capable of supplying power at the second energy level, and wherein the second power supply apparatus can receive energy from the first power supply apparatus and can store energy from the first power supply apparatus in the high-power energy storage system;
and
a control system for controlling the first and second power supply apparatuses, wherein the control system is arranged to perform a black start routine to provide full power to the offshore platform via the main power distribution system after a shutdown of the power source in the second power supply apparatus, the black start routine comprising:
using the first power supply apparatus to initiate the uninterruptible power supply and thereby power up the at least one essential and/or safety critical component;
and then using the high-power energy storage system to power up the power source.

4 more elements

A method for supplying power for an offshore oil and gas platform, wherein the platform has a power supply system including:

a first power supply apparatus for providing power at a first energy level;
an uninterruptible power supply arrangement configured to receive power from the first power supply apparatus, wherein the uninterruptible power supply is for powering at least one essential and/or safety critical component of the oil and gas platform;
a second power supply apparatus for providing power at a second energy level to a main power distribution system of the offshore platform, wherein the second energy level is higher than the first energy level, wherein the second power supply apparatus comprises a power source and a high-power energy storage system capable of supplying power at the second energy level, and wherein the second power supply apparatus can receive energy from the first power supply apparatus and can store energy from the first power supply apparatus in the high-power energy storage system;
and a control system for controlling the first and second power supply apparatuses;
and
wherein the method comprises:
using a black start routine to provide full power to the offshore platform via the main power distribution system after a shutdown of the power source in the second power supply apparatus, the black start routine comprising:
using the first power supply apparatus to initiate the uninterruptible power supply and thereby power up the at least one essential and/or safety critical component;
and then using the high-power energy storage system to power up the power source.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/518,816Filed 4 Nov 2021 · continuation
Priority: GB 170387310 Mar 2017
Published: US 2022/0069575 A13 Mar 2022
Granted: 7 Mar 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H02J 9/062
With automatic change-over , e.g. UPS systems: for AC powered loads
H02J 3/00
Circuit arrangements for ac mains or ac distribution networks
H02J 13/13
Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network: characterised by the…
H02J 2107/40
Circuit arrangements for communication specially adapted for monitoring, managing or controlling operation of power networks remotely: using…

Family

PCT/NO2018/050070Parent of this continuation · filed 9 Mar 2018
US 2022/0069575 A1Pre-grant publication · published 3 Mar 2022
Application16/489,718Parent of this continuation
US 11,196,255 B2Parent of this continuation
US 2020/0006938 A1Published application
US 11,601,011 B2This patent

From the US filing history. Foreign family members aren’t listed.