发明名称 |
METHOD AND SYSTEM FOR IMPROVING PUMP EFFICIENCY AND PRODUCTIVITY UNDER POWER DISTURBANCE CONDITIONS |
摘要 |
A system for controlling operation of a progressing cavity pump to maintain the motor operating under power disturbance conditions. For a blackout condition, a backspin controller uses regenerative power to provide controlled deceleration of the pump, counteracting backspin and preventing backspinning freely. For a brownout condition, a power dip controller weakens the motor field to maximize pump production consistent with reduced input power availability. For a phase loss or voltage imbalance condition, a phase loss controller reduces motor power output to keep drive system output power at or below single phase capacity. |
申请公布号 |
CA2510139(C) |
申请公布日期 |
2010.06.15 |
申请号 |
CA20052510139 |
申请日期 |
2005.06.17 |
申请人 |
UNICO, INC. |
发明人 |
SCHULZ, HARRY W.;GARLOW, MARK E..;ANDERSON, ROBB G. |
分类号 |
F04B49/06;E21B41/00;E21B43/00;E21B43/12;F04B17/03;F04C2/107;F04C13/00;F04C14/28;F04C15/00;G05D7/00;G05D7/06;G05D11/00;H02P7/00 |
主分类号 |
F04B49/06 |
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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