Large Converter-Fed Adjustable Speed AC Drives For Turbomachines.
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Converter-fed adjustable speed electric motors are now finding increasing use for driving turbomachinery in the power range from 1.0 to 20 (50) MW. The most important properties of these drives are explained, with the main emphasis on the frequency converter, the motor, and especially the shaft line.
Grgic, Andrej; Heil, Werner; Prenner, Herbert (1992). Large Converter-Fed Adjustable Speed AC Drives For Turbomachines.. Texas A&M University. Turbomachinery Laboratories. Available electronically from