Method and systems for managing power systems

Patent metadata

Field	Value
Publication number	US-10097009-B2
Application number	US-201514983004-A
Country	US
Kind code	B2
Filing date	Dec 29, 2015
Priority date	Dec 29, 2015
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A power system includes a first power asset include a first power source and a first power controller. The first power controller includes a first filter configured to receive an error amount at a first frequency range and a second power controller includes a second filter configured to receive the error amount at a second frequency range. The first power controller is configured to instruct the first power source to produce a first amount of power, adjust the first amount of power based on the error amount received by the first filter until the error amount received is substantially zero. When the error amount received is substantially zero, the first power controller is configured to determine a first desired operating amount of power based on the first power source, and adjust the first amount of power based on the first desired operating amount of power.

First claim

What is claimed is:

1. A power system comprising:
a first power asset comprising a first power source and a first power controller, wherein said first power controller is configured to instruct said first power source to produce a first amount of power, wherein said first power controller comprises a first filter configured to receive an error amount at a first frequency range; and
a second power asset comprising a second power source and a second power controller, wherein said second power controller is configured to instruct said second power source to produce a second amount of power, wherein said second power controller comprises a second filter configured to receive the error amount at a second frequency range, wherein the error amount is based on a difference between a power demand amount and a sum of the first amount of power and the second amount of power, and wherein said first power controller is configured to:
instruct said first power source to produce the first amount of power;
adjust the first amount of power based on the error amount received by said first filter until the error amount received is substantially zero; and
when the error amount received is substantially zero:
determine a first desired operating amount of power based on said first power source; and
adjust the first amount of power based on the first desired operating amount of power, wherein said first power controller is configured to adjust the first amount of power based on the first desired operating amount of power to adjust the error amount at the second frequency range.

2. The power system in accordance with claim 1 , wherein said second power controller is configured to:
instruct said second power source to produce the second amount of power;
adjust the second amount of power based on the error amount received by said second filter until the error amount received is substantially zero; and
when the error amount received is substantially zero:
determine a second desired operating amount of power based on said second power source; and
adjust the second amount of power based on the second desired operating amount of power.

3. The power system in accordance with claim 1 , wherein the first frequency range and the second frequency range do not overlap.

4. The power system in accordance with claim 1 further comprising a third power asset comprising a third, power source and a third power controller configured to instruct said third power source to produce a third amount of power wherein said first power controller comprises a third filter configured to receive an error amount at a third frequency range, and wherein the error amount is based on the sum of the first amount of power, the second amount of power, and the third amount of power.

5. The power system in accordance with claim 1 , wherein said first power source is at least one of a battery, a gas engine, a coal fired turbine, a fuel cell, a nuclear generator, a wind turbine, solar cells, a hydroelectric generator, and a geothermal tap.

6. The power system in accordance with claim 1 , wherein the first desired operating amount of power is based on at least one of one or more operating parameters of said first power source and one or more business rules.

7. The power system in accordance with claim 1 , wherein said first power controller is further configured to adjust the first amount of power at a rate based on one or more operating parameters of said first power source.

8. The power system in accordance with claim 1 , wherein a frequency associated with the error amount is based on a rate of change of the error amount over time.

9. The power system in accordance with claim 1 further comprising a plurality of power assets which produce a plurality of amounts of power and wherein the error amount is based on the difference between the demand amount and a total of the plurality of amounts of power.

10. The power system in accordance with claim 1 , wherein at least one of said first power asset and said second power asset is a solid oxide fuel cell.

11. A first power asset comprising:
a power source; and
a power controller comprising a filter configured to receive an error amount at a first frequency range, wherein the error amount is based on a difference between a power demand amount and a total power produced amount including power produced by the first power asset and a second power asset, wherein said power controller is configured to:
instruct the power source to produce an amount of power;
adjust the amount of power based on the error amount received by said filter until the error amount received is substantially zero; and
when the error amount received is substantially zero:
determine a desired operating amount of power based on said power source; and
adjust the amount of power based on the desired operating amount of power, wherein said power controller is configured to adjust the error amount of power based on the desired operating amount of power to adjust the error amount at a second frequency range.

12. The first power asset in accordance with claim 11 , wherein the first frequency range and the second frequency range do not overlap.

13. The first power asset in accordance with claim 11 , wherein the power source is at least one of a battery, a gas engine, a coal fired turbine, a fuel cell, a nuclear generator, a wind turbine, solar cells, a hydroelectric generator, and a geothermal tap.

14. The first power asset in accordance with claim 11 , wherein the desired operating amount of power is based on at least one of one or more operating parameters of the power source and one or more business rules.

15. The first power asset in accordance with claim 11 , wherein said power controller is further configured to adjust the amount of power at a rate based on one or more operating parameters of said first power source.

16. The first power asset in accordance with claim 11 , wherein said power controller is further configured to decrease the first amount of power at a rate based on one or more operating parameters of said first power source.

17. The first power asset in accordance with claim 11 , wherein a frequency associated with the error amount is based on a rate of change of the error amount over time.

18. The first power asset in accordance with claim 11 , wherein said second power asset is a solid oxide fuel cell.

Assignees

• Gen Electric

Inventors

• Hart Patrick Hammel
• Teichmann Ralph
• Piccirillo John Guido
• Wang Honggang
• Zoracki Rebecca Dinan

Classifications

• H02J2103/30

  Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks · CPC title

• H02J2101/28

  Wind energy · CPC title

• H02J2101/24

  Photovoltaics · CPC title

• H02J4/00 Primary

  Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks (arrangements using intermediate DC-AC-DC conversion H02J1/002; arrangements using high-voltage DC [HVDC] links H02J3/36) · CPC title

• G05B19/102

  for input of program steps, i.e. setting up sequence · CPC title