MONITORING LOAD OPERATION

• US 20150362537A1
• Filed: 01/18/2013
• Published: 12/17/2015
• Est. Priority Date: 01/18/2013
• Status: Active Grant

• Current Assignee: Schneider Electric USA, Inc. (Schneider Electric SE)
• Original Assignee: Schneider Electric USA, Inc. (Schneider Electric SE)
• Inventors: Van Gorp, John C., Yeo, Jeffrey W., Tovey, Peter
• Granted Patent: US 10,620,240 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01R 21/00 Arrangements for measuring electric power or power factor G01R7/12 takes precedence
• CPC Class Codes: H02J 2203/20 Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: H02J 3/003 Load forecast, e.g. methods or systems for forecasting future load demand
• CPC Class Codes: H02J 9/061 for DC powered loads
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

A load monitoring system for a facility includes a computer system configured to execute a model of the object, the model configured to estimate a state of the object as a function of measured values of at least one characteristic of the object, receive at least one measured value of the at least one characteristic of the object, and execute, by the computer system, the model to compute an estimated state of the object.

Claims

1. A system for monitoring states of an object, the system comprising a computer system configured to:

execute a model of the object, the model configured to estimate a state of the object as a function of measured values of at least one characteristic of the object;

receive at least one measured value of the at least one characteristic of the object; and

execute, by the computer system, the model to compute an estimated state of the object.

2. The system of claim 1, further comprising a plurality of sensors configured to measure the at least one characteristic of the object.

3. The system of claim 2, wherein the plurality of sensors is further configured to transmit the at least one measured value of the at least one characteristic to the computer system.

4. The system of claim 3, wherein the object is an electrical load.

5. The system of claim 4, further comprising an uninterruptible power supply (UPS), and wherein the load receives power from the UPS.

6. The system of claim 4, wherein the at least one characteristic comprises a plurality of characteristics of the load that change with operation of the load.

7. The system of claim 4, wherein computing the estimated state of the object comprises computing an estimated load power usage.

8. The system of claim 4, wherein the at least one characteristic comprises vibration of the load.

9. The system of claim 4, wherein the at least one characteristic comprises current drawn by the load.

10. A method of monitoring states of an object, the method comprising:

receiving, by a computer system, at least one measured value of at least one characteristic of the object;

executing, by the computer system, a model of the object, the model configured to estimate a state of the object as a function of measured values of the at least one characteristic; and

executing, by the computer system, the model to compute an estimated state of the object.

11. The method of claim 10, further comprising:

measuring the at least one characteristic of the object using a plurality of sensors; and

transmitting, by each of the plurality of sensors, at least one measured value of the at least one characteristic to the computer system.

12. The method of claim 11, wherein monitoring states of the object comprises monitoring states of an electrical load.

13. The method of claim 12, further comprising identifying a plurality of characteristics of the load that change with operation of the load.

14. The method of claim 12, further comprising identifying locations on the load to deploy the sensors.

15. The method of claim 12, wherein measuring at least one characteristic of the load comprises at least one sensor measuring a characteristic different from at least one other sensor.

16. The method of claim 12, wherein computing the estimated state of the object comprises computing an estimated load power usage.

17. The method of claim 12, wherein measuring at least one characteristic of the load comprises measuring vibration of the load.

18. The method of claim 12, wherein measuring at least one characteristic of the load comprises measuring current drawn by the load.

19. 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:

execute a model of the object, the model configured to estimate a state of the object as a function of measured values of at least one characteristic of the object;

receive at least one measured value of the at least one characteristic of the object; and

execute, by the computer system, the model to compute an estimated state of the object.