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Design and Experimental Evaluation of Synchronous Machine Without Iron Loss Using Double-Sided Halbach Magnetized PM Rotor in High Power FESS
2008 / IEEE
This item was taken from the IEEE Periodical ' Design and Experimental Evaluation of Synchronous Machine Without Iron Loss Using Double-Sided Halbach Magnetized PM Rotor in High Power FESS ' The rotational loss is one of the most important problems in high-power flywheel energy storage system (FESS) which supplies the electrical energy from the mechanical rotation energy. In our FESS with PM synchronous motor/generator (PMSM/G) and non-contacting system, the rotational loss is mainly generated in the laminated iron stator when PM rotor mounted on the flywheel is rotated. Therefore, this paper presents design and evaluation of a PMSM/G model composed of double-sided Halbach magnetized PM rotor and ironless 3-phase winding stator to minimize speed reduction of the flywheel. For one such motor structure we give analytical formulae for its magnetic field and back-electromotive force in a uniform way via the magnetic vector potential. As a result of experiment, dynamic performance of a manufactured double-sided PMSM/G is evaluated by comparison with those of the slotless PMSM/G in the idling mode. The result shows that the presented PMSM/G can be applicable to the high-power FESS.
Permanent Magnet Generators
Permanent Magnet Motors
Magnetic Vector Potential
High-power Flywheel Energy Storage System
Permanent Magnet Synchronous Motor
Laminated Iron Stator
Double-sided Halbach Magnetized Pm Rotor
Ironless 3-phase Winding Stator
High Power Fess
Coreless 3-phase Winding Stator
Halbach Magnetized Pm Rotor
Fields, Waves And Electromagnetics
Permanent Magnet Synchronous Generator