Design of Torsional Vibration Suppression For Parallel Operation of PM Variable Frequency Shaft Generator

In order to improve energy efficiency, modern ships use shaft permanent magnet generators, when the free end of the main engine is connected to two permanent magnet generators through a highly elastic coupling, and the power supply is connected in parallel by the rectifier-inverter device, the torsional vibration problem of the shaft system becomes particularly complex and critical. In order to solve this problem, the research direction of effective suppression of torsional vibration of the shaft system is proposed. Through the analysis of the mechanism of shaft torsion vibration affecting the stability, reliability and safe operation of power generation equipment and the safe operation of the power system, it is concluded that shaft torsional vibration will cause equipment damage and increase maintenance costs, and the effectiveness of suppressing torsional vibration in improving the operation performance of the system is verified, which has important practical value and significance for improving the energy utilization efficiency of ships and ensuring the safe operation of the power system.