Prediction of available generator running time

Patent metadata

Field	Value
Publication number	US-9792552-B2
Application number	US-201214409697-A
Country	US
Kind code	B2
Filing date	Jun 29, 2012
Priority date	Jun 29, 2012
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

At least one aspect of the invention is directed to a power monitoring system including a generator coupled to a fuel tank, a plurality of monitors, and a processor configured to monitor one or more loads drawing power from the generator; monitor one or more parameters that affect the amount of power drawn by the one or more loads; monitor a fuel consumption rate of the generator; generate one or more load profiles for each of the one or more loads; receive a set of the one or more loads for which a predicted time is to be generated; receive values for the one or more parameters; generate a predicted load profile for the set of the one or more loads and the values of the one or more parameters; receive information indicating an amount of remaining fuel; and calculate a predicted available run time.

First claim

What is claimed is:

1. A method of predicting available run time of a generator to power a facility, the method comprising:
monitoring a plurality of loads drawing power from the generator;
monitoring a plurality of parameters that affect the amount of power drawn by the plurality of loads;
monitoring a fuel consumption rate of the generator;
generating a plurality of load profiles for each load of the plurality of loads, each load profile indicating power drawn by a corresponding load over a period of time for a set of values for of each parameter of the plurality of parameters;
determining a set of loads from the plurality of loads for which a predicted time is to be generated;
receiving values for each parameter of the plurality of parameters;
generating a predicted load profile for the set of loads and the values of each parameter of the plurality of parameters;
receiving information indicating an amount of remaining fuel; and
calculating, on a computer system, a predicted available run time based on the power draw indicated by the predicted load profile, the fuel consumption rate of the generator, and the amount of remaining fuel,
wherein generating the predicated load profile includes aggregating two or more load profiles of the plurality of load profiles to predict future power usage of the set of loads, and
wherein the two or more load profiles correspond to two or more loads.

2. The method of claim 1 , further comprising identifying a first group of the plurality of loads as critical loads and identifying a second group of the plurality of loads as non-critical, and wherein the set of loads includes at least the first group of the plurality of loads.

3. The method of claim 1 , further comprising identifying a first group of the plurality of loads as delayable loads and identifying a second group of the plurality of loads as non-delayable loads, and wherein the set of loads includes at least the second group of the plurality of loads.

4. The method of claim 1 , wherein the received values for the plurality of parameters include predicted values for the plurality of parameters.

5. The method of claim 1 , further comprising determining a plurality of sets of the plurality of loads for which a predicted time is to be generated.

6. The method of claim 5 , further comprising:
receiving a length of time; and
providing one or more of the plurality of sets of the plurality of loads for which the predicted time is longer than the length of time.

7. The method of claim 6 , wherein the loads comprise a priority ranking, and the one or more provided sets comprises an optimized number of powered loads based on the priority ranking.

8. The method of claim 1 , wherein the generator is a generator system comprising a plurality of generators coupled to a plurality of fuel tanks, the method further comprising:
determining one or more sets of the plurality of generators to power the loads; and
calculating a predicted available run time for each of the one or more sets of the plurality of generators.

9. A power monitoring system for a facility, comprising:
a generator coupled to a fuel tank;
a plurality of monitors configured to monitor power drawn by loads in the facility from the generator;
a processor configured to be coupled to the plurality of monitors and configured to:
monitor a plurality of loads drawing power from the generator using the plurality of monitors;
monitor a plurality of parameters that affect the amount of power drawn by the plurality of loads;
monitor a fuel consumption rate of the generator;
generate a plurality of load profiles for each load of the plurality of loads, each load profile indicating power drawn by a corresponding load over a period of time for a set of values for each parameter of the plurality of parameters;
receive a set of loads of the plurality of loads for which a predicted time is to be generated;
receive values for each parameter of the plurality of parameters;
generate a predicted load profile for the set of loads and the values for each parameter of the plurality of parameters;
receive information indicating an amount of remaining fuel; and
calculate a predicted available run time based on the power drawn indicated by the predicted load profile, the fuel consumption rate of the generator, and the amount of remaining fuel,
wherein generating the predicted load profile includes aggregating two or more load profiles of the plurality of load profiles to predict future power usage of the set of loads, and
wherein the two or more load profiles corresponds to two or more loads.

10. The system of claim 9 , wherein the processor is further configured to identify a first group of the plurality of loads as critical loads and identify a second group of the plurality of loads as non-critical, and wherein the set of loads includes at least the first group of the plurality of loads.

11. The system of claim 9 , wherein the processor is further configured to identify a first group of the plurality of loads as delayable loads and identify a second group of the plurality of loads as non-delayable loads, and wherein the set of loads includes at least the second group of the plurality of loads.

12. The system of claim 9 , wherein the received values for the plurality of parameters include predicted values for the plurality of parameters.

13. The system of claim 9 , wherein the processor is further configured to determine a plurality of sets of the plurality of loads for which a predicted time is to be generated.

14. The system of claim 13 , wherein the processor is further configured to:
receive a length of time; and
provide one or more of the plurality of sets of the plurality of loads for which the predicted time is longer than the length of time.

15. The system of claim 14 , wherein the loads comprise a priority ranking, and the one or more provided sets comprises an optimized number of powered loads based on the priority ranking.

16. The system of claim 9 , wherein the generator is a generator system comprising a plurality of generators coupled to a plurality of fuel tanks, and wherein the processor is further configured to:
determine one or more sets of the plurality of generators to power the loads; and
calculate the predicted available run time for each of the one or more sets of the plurality of generators.

17. A non-transitory computer readable medium having stored thereon sequences of instruction for predicting available run time for a generator including instructions that will cause at least one processor to:
monitor plurality of loads drawing power from the generator;
monitor a plurality of parameters that affect the amount of power drawn by the plurality of loads;
monitor a fuel consumption rate of the generator;
generate a plurality of load profiles for each load of the plurality of loads, each load profile determining power drawn by a corresponding load over a period of time for a set of values for each parameter of the plurality of parameters;
determine a set of loads from the plurality of loads for which a predicted time is to be generated;
receive values for each parameter of the plurality of parameters;
generate a predicted load profile for the set of loads and the values of each parameter of the plurality of parameters;
receive information indicating an amount of remaining fuel; and
calculate, on a computer system, a predicted available run time based on the power draw indicated by the predicted load profile, the fuel consumption rate of the generator, and the amount of remaining fuel

Assignees

• Hirschbold Markus F
• Van Gorp John C
• Schneider Electric Usa Inc

Inventors

• Hirschbold Markus F
• Van Gorp John C

Classifications

• H02J3/003 Primary

  Load forecast, e.g. methods or systems for forecasting future load demand · CPC title

• H02J3/17

  Demand-responsive operation of AC power transmission or distribution networks · CPC title

• H02J3/12

  Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load · CPC title

• H02J9/08

  requiring starting of a prime-mover · CPC title

• Y02B70/3225

  Demand response systems, e.g. load shedding, peak shaving · CPC title