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.
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申请公布号 |
CA2713745(A1) |
申请公布日期 |
2011.02.27 |
申请号 |
CA20102713745 |
申请日期 |
2010.08.27 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
LEUTHEN, JOHN M.;PLITT, SHELDON |
分类号 |
F04D15/00;E21B43/12;F04B47/06;F04B49/02;F04B49/10;F04D13/10 |
主分类号 |
F04D15/00 |
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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