SYSTEMS AND METHODS FOR REDUCTION OF TORSIONAL OSCILLATIONS IN TURBOMACHINERY SYSTEMS

摘要

A turbomachinery system includes an auxiliary power converter and a turbomachine coupled to an electrical machine through a shaft extending therebetween. The electrical machine includes a stator including at least one stator winding and at least one auxiliary winding proximate the at least one stator winding. The at least one stator winding and the at least one auxiliary winding define a cavity within the stator, where the shaft is configured to be positioned at least partially within the cavity. The at least one auxiliary winding is configured to alternately energize and de-energize to alternately apply and remove, respectively, a corrective torque to the shaft to dampen torsional oscillations thereof.