Analysis of low-frequency vibration in a steam turbine based on closed-loop system identification

• Published in: Journal of Low Frequency Noise, Vibration and Active Control Vol. 42; no. 2; pp. 525 - 538
• Main Authors: Yabui, Shota, Kotsuchihashi, Hiroki, Inoue, Tsuyoshi
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.06.2023; Sage Publications Ltd; SAGE Publishing
• Subjects: Acoustics. Sound; Closed loop systems; Closed loops; Control engineering systems. Automatic machinery (General); Damping; Electric power plants; Electric power supplies; Electrical loads; Feedback control; Prediction models; QC221-246; Resonant frequencies; Steam turbines; System identification; TJ212-225; Turbines; Vibration analysis; steam-whirl-induced vibration; self-excited vibration; closed-loop system identification; steam turbine

Steam turbines are used to generate thermal power in electric power plants. They are important industrial equipment that support societal infrastructure. The stable operation of steam turbines is necessary to maintain long-term electrical power supply. However, low-frequency vibration, which is refe...