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US 8,456,116 B2Granted
Power supply system and method with remote variable frequency drive (VFD)
AssigneeCameron International Corporation
InventorJohn F. Burdick
Life of this patent
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Abstract
In at least some embodiments, a system includes a first remote tool. The system also includes a variable frequency drive (VFD) coupled to the first remote tool, wherein the output of the VFD powers the first tool and wherein at least part of the VFD is in situ with the first remote tool.
Claims20
A system, comprising:
- a first remote tool located subsea;
- and
- a variable frequency drive (VFD) coupled to the first remote tool, wherein the VFD output powers the first remote tool and wherein at least part of the VFD is in situ subsea with the first remote tool.
A variable frequency drive (VFD) power supply, comprising:
- a VFD rectifier that receives AC power and rectifies the received AC power;
- a VFD filter that filters the VFD rectifier output;
- and
- a VFD inverter that receives the VFD filter output and provides variable AC power to a first subsea tool,
- wherein the VFD inverter is in situ with the first subsea tool.
2 more elements
A power supply method, comprising:
- rectifying, by a variable frequency drive (VFD) rectifier, AC power;
- filtering, by a VFD filter, the VFD rectifier output;
- transmitting, by a VFD DC bus, the VFD filter output to a VFD inverter;
- and
- providing, by the VFD inverter, an AC output for powering a first tool located subsea,
- wherein the first tool is remotely located and wherein the VFD inverter is in situ subsea with the first tool.
3 more elements
Dependencies are inferred from the claim text.