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Design and Construction of 35 kWh Class Superconductor Flywheel Energy Storage System  

Jung, S.Y. (KEPCO Research Institute)
Han, Y.H. (KEPCO Research Institute)
Park, B.J. (KEPCO Research Institute)
Han, S.C. (KEPCO Research Institute)
Publication Information
Progress in Superconductivity / v.14, no.1, 2012 , pp. 60-65 More about this Journal
Abstract
A superconductor flywheel energy storage system (SFES) is an electro-mechanical battery which transforms electrical energy into mechanical energy for storage, and vice versa. A 35 kWh class SFES module was designed and constructed as part of a 100kWh/1MW class SFES composed of three 35 kWh class SFES modules. The 35 kWh class SFES is composed of a main frame, superconductor bearings, a composite flywheel, a motor/generator, electro-magnetic bearings, and a permanent magnet bearing. The high energy density composite flywheel is levitated by the permanent magnet bearing and superconductor bearings, while being spun by the motor/generator, and the electro-magnetic bearings are activated while passing through the critical speeds. Each of the main components was designed to provide maximum performance within a space-limited compact frame. The 35 kWh class SFES is designed to store 35 kWh, with a 350 kW charge/discharge capacity, in the 8,000 ~ 12,000 rpm operational speed range.
Keywords
superconductor; flywheel; energy; bearing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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