Full-Load Testing Of An All-Electric Centrifugal Compressor For Miscible Gas Injection.
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A two casing high-pressure injection compressor train driven by a directly coupled high-speed induction motor was tested to demonstrate satisfactory electrical, aerothermal, and rotordynamic performance. Some key test aspects are discussed and illustrated with typical results. These include the influence of misalignment and thrust reaction forces on magnetic bearing loading, compressor rotor stability in magnetic bearings, rotor behavior in the landing bearings during simulated magnetic bearing failure, performance of the active thrust control system under transient and simulated failure conditions, and controls tuning of the variable frequency drive. Observations and difficulties encountered during commissioning and plant startup in the field are also discussed.
Fulton, John W.; Klein, John M.; Marriott, Andrew; Graham, A. David (2001). Full-Load Testing Of An All-Electric Centrifugal Compressor For Miscible Gas Injection.. Texas A&M University. Turbomachinery Laboratories. Available electronically from