Investigation of the operation of a ship’s synchronous generator based on a numerical model

Abstract The article presents the results of modeling a ship’s synchronous generator. Based on preliminary design calculations, geometric model generator was built. static and overclocking processes are investigated. For modes, frequency response process is obtained. A numerical used to identify mechanical defect. On example simulated defect an electrical machine - eccentricity rotor, signature signal study revealed that presence rotor leads appearance harmonic component in spectrum force large amplitude with maximum value at low frequency. Transient analysis carried out using wavelet transformations. dynamics show how speed increases. simulation three regions under study: region increase speed, achievement critical (between second third seconds), exit steady-state. diagram system for diagnosing defects digital twin proposed. Generator (mechanical electromechanical) can be identified based data. Databases signatures mode diagnostic model, which contains algorithms deciding defect, serve as basis information operator decide.