Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly
US8400093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Mar 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P3/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for detecting a backspin condition of a motor in an electrical submersible pump is disclosed herein. The system comprises a sensor mounted proximate to the motor, the sensor outputting a signal, a power cable connected between a motor and a controller, the power cable supplying a three phase AC voltage to the motor, one phase of the three phase signal having a control signal thereon; electronics connected to the sensor, the electronics receiving the signal and propagating the signal to the controller; and a computer defining the controller, the controller having a non-transitory memory, a computer processor, and a computer program product stored on the memory and executable by the processor, the computer program product performing a process of controlling the variable speed drive of the motor and a process of monitoring the signal from the sensor to determine if the motor is backspinning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.