发明名称 |
Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly |
摘要 |
A system for detecting a backspin condition of a motor in an electrical submersible pump is described herein. The system comprises a variable speed drive for powering the motor via a power cable; and a controller, the controller having a memory, a computer processor, and a computer program product stored on the memory and executable by the processor. The computer program product comprises the instructions of: monitoring an input current or impedance on the power cable to determine changes in motor current impedance, comparing changes in the motor current impedance to a historical threshold value for backspin events to determine whether the motor is backspinning; impeding operable power to the motor when it is determined the motor is backspinning; supplying a low AC voltage to the motor after it is determined the motor is backspinning; and determining whether or not the motor has stopped backspinning by monitoring the low AC voltage. |
申请公布号 |
US8334666(B2) |
申请公布日期 |
2012.12.18 |
申请号 |
US20100869443 |
申请日期 |
2010.08.26 |
申请人 |
PLITT SHELDON;LEUTHEN JOHN M.;BAKER HUGHES INCORPORATED |
发明人 |
PLITT SHELDON;LEUTHEN JOHN M. |
分类号 |
G01R31/02;H02H3/04;H02K11/00 |
主分类号 |
G01R31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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