System and method for health management of pumping system

Patent metadata

Field	Value
Publication number	US-9777723-B2
Application number	US-201514588475-A
Country	US
Kind code	B2
Filing date	Jan 2, 2015
Priority date	Jan 2, 2015
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

A method implemented by at least one processor includes receiving a plurality of operating parameters of a pumping system, wherein the pumping system has a plurality of pump-units powered by a generator-unit. The operating parameters include a pump-unit parameter and a generator-unit parameter. The method also includes receiving reference data of the pumping system, wherein the reference data includes measurements from the pumping system representative of performance of the plurality of pump-units. The method also includes determining one or more health parameters corresponding to one or more pump-units based on the plurality of operating parameters and the reference data. The method further includes modifying one or more input parameters of the generator-unit based on the one or more health parameters for continued operation of the pumping system.

First claim

The invention claimed is:

1. A method, comprising:
receiving, by a signal acquisition module, a plurality of operating parameters of a pumping system, wherein the pumping system comprises a plurality of pump-units powered by a generator-unit, and the operating parameters comprise a pump-unit parameter and a generator-unit parameter;
receiving, by the signal acquisition module, reference data of the pumping system, wherein the reference data comprises measurements from the pumping system representative of performance of the plurality of pump-units;
determining, by a health module, one or more health parameters corresponding to one or more pump-units based on the plurality of operating parameters of the pumping system and the reference data, wherein the one or more health parameters comprise at least one of a normalized torque value and a normalized pressure;
determining, by the health module, a target set-point for the generator-unit based on a plurality of relay parameters corresponding to the plurality of pump-units; and
modifying, by the health module, one or more input parameters of the generator-unit based on the one or more health parameters and the target set-point for continued operation of the pumping system.

2. The method of claim 1 , further comprising determining a fault condition based on the plurality of health parameters, the plurality operating parameters and the reference data.

3. The method of claim 2 , wherein the determining the fault condition comprises:
determining a relative variation of one or more of the plurality of operating parameters corresponding to one or more of the pump-units; and
comparing the relative variation with a fault threshold corresponding to the one or more operating parameter.

4. The method of claim 3 , wherein the determining the relative variation comprises predicting a variation at a future time instant.

5. The method of claim 2 , further comprising operating a protection relay based on the fault condition to isolate a corresponding pump-unit.

6. The method of claim 1 , wherein the determining health parameters comprises determining at least one of a power values, torque values, and injection pressure values corresponding to the plurality of pump-units.

7. The method of claim 1 , wherein the determining comprises:
performing a statistical comparison of the plurality of health parameters;
determining a deviation value for a pump-unit based on the statistical comparison; and
determining a health index for the pump-unit based on the corresponding deviation value.

8. The method of claim 1 , wherein the determining comprises predicting the one or more health parameters at a future time instant.

9. The method of claim 1 , wherein the modifying comprises determining a target set-point for the generator-unit based on the one or more health parameters.

10. The method of claim 1 , wherein determining the one or more health parameters comprise:
determining a drive index based on a motor voltage value, wherein the drive index is representative of the normalized torque value;
determining an injectivity index based on a speed of a mechanical pump, wherein the injectivity index is representative of the normalized pressure; and
determining a health index of a pump-unit of the one or more pump units as a product of the drive index and the injectivity index.

11. A system, comprising:
at least one processor and a memory communicatively coupled to the at least one processor via a communications bus;
a signal acquisition module communicatively coupled to a pumping system having a plurality of pump-units powered by a generator-unit, wherein the signal acquisition module:
receives a plurality of operating parameters of the pumping system, wherein the operating parameters comprise a pump-unit parameter and a generator-unit parameter;
receives reference data of the pumping system, wherein the reference data comprises measurements from the pumping system representative of a performance condition and a fault condition of a plurality of pump-units;

a health module communicatively coupled to the data acquisition module to:
determine one or more health parameters corresponding to one or more pump units based on the plurality of operating parameters of the pumping system and the reference data, wherein the one or more health parameters comprise at least one of a normalized torque value and a normalized pressure;
determine a target set-point for the generator-unit based on a plurality of relay parameters corresponding to the plurality of pump-units; and
modify one or more input parameters of the generator-unit based on the plurality of health parameters and the target set-point for continued operation of the pumping system;
wherein the at least one of the data acquisition module, and the health module is stored in the memory and executable by the at least one processor.

12. The system of claim 11 , wherein the health module determines a fault condition based on the plurality of health parameters, the plurality of operating parameters and the reference data.

13. The system of claim 12 , wherein the health module:
determines a relative variation of one or more of the plurality of operating parameters corresponding to one or more of the pump-units; and
compares the relative variation with a fault-threshold corresponding to the one or more operating parameter.

14. The system of claim 13 , wherein the health module predicts a variation at a future time instant.

15. The system of claim 12 , wherein the health module operates a protection relay based on the fault condition to isolate a corresponding pump-unit.

16. The system of claim 11 , wherein the health module determines at least one of a plurality of power values, torque values, and pressure values corresponding to the plurality of pump-units.

17. The system of claim 11 , wherein the health module:
performs a statistical comparison of the plurality of health parameters;
determines a deviation value for a pump-unit based on the statistical comparison; and
determines a health index for the pump-unit based on the corresponding deviation value.

18. The system of claim 11 , wherein the health module predicts the one or more health parameters at a future instant time instant.

19. The system of claim 11 , wherein the health module determines a target set-point for the generator-unit based on the one or more health parameters.

20. The system of claim 11 , wherein the health module is further configured to:
determine a drive index determined based on a motor voltage value, wherein the drive index is representative of the normalized torque value;
determine an injectivity index based on a speed of a mechanical pump, wherein the injectivity index is representative of the normalized pressure; and
determine a health index of a pump-unit of the one or more pump units as a product of the drive index and the injectivity index.

21. A non-transitory computer readable medium having a program that instructs at least one processor to:
receive, by a signal acquisition module, a plurality of operating parameters of a pumping system, wherein the pumping system comprises a plurality of pump-units powered by a generator-unit, and the operating parameters comprise a pump-unit parameter and a generator-unit parameter;
receive, by a health module, reference data of the pumping system, wherein the reference data comprises measurements from the pumping system representative of performance of the plurality of pump-units;

Assignees

• Gen Electric

Inventors

• Wiegman Herman Lucas Norbert
• Aravind Deepak

Classifications

• F04B23/04

  Combinations of two or more pumps · CPC title

• F04B2203/0208

  Power · CPC title

• F04B51/00 Primary

  Testing machines, pumps, or pumping installations · CPC title

• F04B49/06

  Control using electricity (regulating by means of floats actuating electric switches F04B49/04) · CPC title

• F04B2203/0207

  Torque · CPC title