Theoretical Vibration Analysis on 600 Wh Energy Storage Flywheel Rotor—Active Magnetic Bearing System

Abstract

This paper shows a theoretical vibration analysis regarding the controller’s parameters and the gyroscopic effect, based on a simplified rotordynamic model. Combined with 600 Wh energy storage flywheel rotor system mathematical model, the Campbell diagram of the rotor system was obtained by the calculation of the whirl frequency under different parameters of the controller in MATLAB to analyze the effect of the controller parameter on the whirl frequency and to limit the operating speed and acceleration or deceleration of the rotor. The result of the analysis can be used to set the support position of the rotor system, limit the ratio of transverse moment of inertia and the polar moment of inertia, and direct the flywheel prototype future design. The presented simplified rotordynamic model can also be applied to rotating machines.

Dynamic Characteristics of Magnetic Suspended Dual‐Rotor System by Riccati Transfer Matrix Method

“…However, they ignored the effects of AMB damping characteristics on the system critical speeds. Liu et al [12] established a rigid dynamic model of the AMB-rotor system by Lagrange equations, discussed the dynamic characteristics of an energy storage flywheel AMB-rotor system using PID control, and analyzed the effects of control parameters and the position of AMBs on the system critical speeds. Tang et al [13] investigated the relationship between modal frequency and stiffness and damping in a magnetic suspended control moment gyroscope with radial AMB and axial passive magnetic bearing.…”

Economic Evaluation of Three Available Solutions for Promotion of Wind Power Integration

“…Potential options for electrical storage include electrochemical energy storage, electromagnetic energy storage, and mechanical energy storage [4,5]. However, most of the electrical storages need vast investment and have not been in the commercial application except pumped hydrostorage (PHS) [6].…”

Research on Functional Integration Principleand Feasible Region of Magnetic Balancing Disc aThrust Bearing

“…The magnetic bearings was the most typical application of magnetic force. These bearings included magnetic suspension in artificial heart pump [3][4][5][6], flywheel energy storage [7][8][9], bearing less drivers [10,11],electrobemagnetic exciter [11][12][13][14][15][16][17]and bearings using in special turbo pumps [18,19].The structure designing, magnetic force analysis, contrller and application of magnetic bearings were studied in the references mentioned above. There study regarded magnetic devices as afunctional unit and studied from the structure and the force characteristics all in all.…”