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A compact flywheel energy storage system assisted by axial-flux partially-self-bearing permanent magnet motor has been proposed by the authors. The proposed machine combines axial magnetic bearing and motoring functionality into a single magnetic actuator, which not only spins the rotor-flywheel but also generates a levitation force to overcome the gravity. The mathematical model of the levitation...
A compact flywheel energy storage system assisted by axial-flux partially-self-bearing permanent magnet motor has been proposed by the authors. The proposed machine combines axial magnetic bearing and motoring functionality into a single magnetic actuator, which not only spins the rotor-flywheel but also generates a levitation force to overcome the gravity. The mathematical model of the levitation...
A novel high speed flywheel energy storage system is presented in this paper. The rated power, maximum speed and energy stored are 4 kW, 60,000 rpm and 300 Whr respectively. High power density, energy density and efficiency can be obtained in this system with the compact design. In this design, the rotor with composite rim acts as the flywheel of the system and is sandwiched between two disk type...
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