Offshore platform powered with new electrical motor drive system

A new type of compressor motor drive and electrical transmission system will be installed on a Norwegian offshore platform in the North Sea. New compressors are required to compensate the declining reservoir pressure and boost the gas capacity through the pipelines to mainland. The variable speed dr...

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Bibliographic Details
Main Authors: Lamell, J.O., Trumbo, T., Nestli, T.F.
Format: Conference Proceeding
Language:English
Subjects:
Compressor motor
DC motors
electrical drive
High-voltage motor
HVDC transmission
Motor drives
offshore platform
Pipelines
Power cables
Power transmission lines
Reservoirs
Synchronous motors
variable frequency
variable speed
Variable speed drives
Voltage
Wounds
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Summary:A new type of compressor motor drive and electrical transmission system will be installed on a Norwegian offshore platform in the North Sea. New compressors are required to compensate the declining reservoir pressure and boost the gas capacity through the pipelines to mainland. The variable speed drive systems consist of two 56 kilovolts, 40 MW synchronous cable wound motors and two directly connected high voltage direct current transmission lines, which are powered from mainland. The electrical drive system increases and secures the gas production at a higher efficiency than conventional gas turbine driven compressor systems and avoid emissions of environmentally harmful substances from the platform. The equipment in the electrical drive systems was under test during 2003 and was delivered for assembly on the mainland, after which it was shipped out to the platform. The drive systems are scheduled for installation in 2004 and commissioning in 2005. The application of a variable speed drive on a platform powered from mainland and utilization of a new combination of electrical cable wound motor and high voltage source converter, have required accurate analysis and design and thorough testing of the motor.
ISSN:0090-3507
2161-8127
DOI:10.1109/PCICON.2005.1524562