Title : 
Design and analysis of high speed slotless PM machine with Halbach array
         
        
            Author : 
Jang, Seok-Myeong ; Jeong, Sang-Sub ; Ryu, Dong-Wan ; Choi, Sang-Kyu
         
        
            Author_Institution : 
Dept. of Electr. Eng., Chung Nam Nat. Univ., Taejon, South Korea
         
        
        
        
        
            fDate : 
7/1/2001 12:00:00 AM
         
        
        
        
            Abstract : 
Slotless machines have been applied for a very high rotational speed and/or the ripple-free torque. In this paper, slotless machines equipped with external 4-pole field Halbach and radially magnetized PM array for electro-mechanical battery. This paper describes the comparison of the design guidelines, magnetic field characteristics, required magnet volume and optimal thickness of windings for two types of PM rotors
         
        
            Keywords : 
brushless machines; permanent magnet machines; rotors; Halbach array; design method; electromechanical battery; high-speed slotless permanent magnet machine; magnetic field; radial magnetization; ripple-free torque; rotor winding; Air gaps; Batteries; Magnetic flux; Magnetic materials; Magnetization; Rotors; Shafts; Stator windings; Toroidal magnetic fields; Torque;
         
        
        
            Journal_Title : 
Magnetics, IEEE Transactions on