5 MJ flywheel based on bulk HTS magnetic suspension

11th European Conference on Applied Superconductivity

Poltavets, V.^1 ; Kovalev, K.^1 ; Ilyasov, R.^1 ; Glazunov, A.^2 ; Maevsky, V.^3 ; Verzbitsky, L.^4 ; Akhmadyshev, V.^5 ; Shikov, A.^6

Moscow Aviation Institute, Department 310, Volokolamskoe shosse, 4, Moscow

125993, Russia^1

JSC Centrotech-SPb, Stachek, 47, St-Petersburg

198097, Russia^2

JSC Gorizont, Omskaya str. 2 J, Rostov-on-Don

344068, Russia^3

JSC NIIEM, 11, Panfilov str., Istra, Moscow region

143502, Russia^4

JSC VPO Tochmash, 600007, Russia^5

NRC Kurchatov Institute, Academician Kurchatov Square, 1, Moscow

123182, Russia^6

关键词: Bearing systems;    Experimental investigations;    Flywheel energy storage system;    Flywheel rotors;    Liquid-nitrogen cooling;    Magnetic suspension;    Theoretical modeling;    Uninterruptible power supply (UPS);   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/3/032022/pdf
DOI  :  10.1088/1742-6596/507/3/032022

来源: IOP

【 摘 要 】

Nowadays the flywheel energy storage systems (FES) are developed intensively as uninterruptible power supply (UPS) devices for on-land and transport (especially airborne) applications worldwide. This work is devoted to the FES with magnetic suspension on the base of bulk HTS YBCO elements and permanent magnets. The developed FES is intended to be used as UPS in Russian atomic industry in case of an emergency. For the successful design of the FES the following questions should be solved: design of the motor/generator, design of the rotor (flywheel), design of the bearing system, design of the control system and system of power load matching, design of the cooling system. The developed small-scale FES with the stored energy 0.5 MJ was used to solve these basic questions. The elaborated FES consists of the synchronous electric machine with permanent magnets, the solid flywheel with axial magnetic suspension on the base of YBCO bulks and permanent magnets, the system of control and power load matching, and the system of liquid nitrogen cooling. The results of theoretical modeling of different schematics of magnetic suspension and experimental investigations of the constructed FES are presented. The design of the future full-scale FES with the stored energy ∼5 MJ and output power up to 100 kW is described. The test results of the flywheel rotor and HTS magnetic suspension of 5 MJ FES are presented. This work is done under support of Rosatom within the frames of Russian Project "Superconducting Industry"