Title :
High efficiency energy conversion and drives of flywheel energy storage system using high temperature superconductive magnetic bearings
Author :
Jeoung, H. ; Choi, J.
Author_Institution :
Sch. of Electr. & Electron. Eng., Chungbuk Nat. Univ., South Korea
Abstract :
This paper presents an experimental study of high efficiency energy conversion and drives for flywheel energy storage system using the high temperature superconductive magnetic bearings and permanent magnet synchronous motor. This described flywheel energy storage system is designed to replace of the conventional EMB (electromechanical battery) system. To realize the high efficiency and to minimize the torque ripple, the waveform of the converter output current is controlled to be sinusoidal and in phase or inverse phase with the electro-motive voltage in motoring mode and regeneration mode, respectively. The actual performance of the mechanical and electrical characteristics of the proposed HTS magnet flywheel energy storage system is well described in this paper and its validity is verified through the simulation and experimental results
Keywords :
electric current control; flywheels; high-temperature superconductors; machine bearings; machine control; magnetic bearings; permanent magnet motors; superconducting magnets; synchronous motor drives; converter output current waveform control; drives; electro-motive voltage; flywheel energy storage system; high efficiency energy conversion; high temperature superconductive magnetic bearings; inverse phase; motoring mode; permanent magnet synchronous motor; regeneration mode; torque ripple minimisation; Batteries; Energy conversion; Energy storage; Flywheels; Magnetic levitation; Permanent magnet motors; Superconductivity; Temperature; Torque control; Torque converters;
Conference_Titel :
Power Engineering Society Winter Meeting, 2000. IEEE
Print_ISBN :
0-7803-5935-6
DOI :
10.1109/PESW.2000.850017
