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김병수(B. S. Kim),구동식(D. S. Gu),임장익(J. I. Lim),배용채(Y. C. Bae),이욱륜(W. R. Lee),김희수(H. S. Kim),최병근(B. G. Choi) 한국동력기계공학회 2009 한국동력기계공학회 학술대회 논문집 Vol.2009 No.11
Flywheel energy storage system (FESS) is defined as a high speed rotating flywheel system saving electric power which is a surplus power in normal days. The FESS is proposed as an efficient energy storage system because it has high accumulation energy when it is operated in high speed without mechanical problem It is consisted of flywheel, motor/generator, low friction bearings and so on. To develop a FESS, it has to be passed on the simulation and experiment and those are difficult and take a lot of time. Especially, the simulation is depending on modeling method. In common simulation software using 3D model, the 3D model is designed by rod with point masses for disks to get correct result of rotor dynamics. But, in the FESS, point masses cannot substituted flywheel because of shape. Therefore, in this research, we will propose a easy modeling method using 2D for FESS. Rotor dynamic program for it was coded by Matlab. And the result from 2D model was compared with it from common package software, MSC. Nastran and ANSYS Workbench. And then, modal test had done.