Rotor dynamics analysis and experiment study of the 20kW/1kWh flywheel energy storage system

PDF(1613 KB)

Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (1) : 38-42.

论文

Rotor dynamics analysis and experiment study of the 20kW/1kWh flywheel energy storage system

Tang Changliang1, Dai Xingjian1, Wang Jian2, Li Yiliang3

Author information +

History +

Abstract

The development trend of flywheel energy storage technology is high power and large capacity. The 20kW/1kWh of flywheel energy storage system was developed for the application background of regenerating break energy in urban rail-traffic. Based on ANSYS software, the dynamic model of the flywheel rotor-bearing-damper system was built to calculate critical speeds, mode shapes and modal damping ratios at different speeds, and modal analysis of the flywheel frame and vacuum container was also carried out. The amplitude-frequency responses of the flywheel dynamic system were obtained in a number of spin tests. The experimental results are in agreement with the ones of numerical simulation, which provides a reliable theoretical and experiment basis for optimization and improvement of the flywheel system.

Key words

Flywheel energy storage / Dynamics / Mode shape / Modal analysis

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Tang Changliang;Dai Xingjian;Wang Jian;Li Yiliang. Rotor dynamics analysis and experiment study of the 20kW/1kWh flywheel energy storage system[J]. Journal of Vibration and Shock, 2013, 32(1): 38-42