Multiple-TMD-Based Structural Vibration Control for Pumped Storage Power Plants

• Main Authors: Tengfei Zhong, Xin Feng, Yu Zhang, Jing Zhou
• Format: Article
• Language: English
• Published: MDPI AG 2020-08-01
• Series: Applied Sciences
• Subjects: pumped storage power plants; tuned mass damper; vibration control; control strategies; high-frequency vibration
• Online Access: https://www.mdpi.com/2076-3417/10/16/5577

The high-frequency resonance in the superstructure of a pumped storage power station (PSPP) due to the generation unit can shorten the service life of the power station structure and even endanger its safety. Although tuned mass dampers (TMDs) have been proved to be effective in controlling structural vibration, their application in PSPPs is rare, as high-frequency vibration control of PSPPs has not been studied. In this paper, a TMD control method is proposed based on PSPP high-frequency vibration and various TMD control strategies, and a set of high-frequency TMD equipment is designed. Results of a series of vibration reduction tests and numerical analyses show that the new TMD device can effectively control the high-order mode of the structure, and the bandwidth of the suppression frequency is extended, which shows the robustness and control efficiency of the device.