ROTOR AND PERMANENT MAGNETIC ROTATING MACHINE

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PURPOSE : A rotor and a permanent magnet type machine are provided to obtain a demagnetization tolerance and a high output in a magnet type generator for the wind power generation of large size using the permanent magnet having high coercive force for the rotor of an IPM rotating machine. CONSTITUTION : An IPM(Interior Permanent Magnet) rotating machine(10) comprises the rotor core(12) having a laminated electromagnetic steel sheet, a plurality of permanent magnets(13), and the rotor(11) having the 12 polar structure which is buried. A stator(15) has the 18 slot structure in which the electromagnetic steel sheet is laminated. A coil(17) is rolled on the teeth of a stator core(16). The coil is composed of three phase Y-connection. A permanent magnet is composed of an Nd system rare earth sintered magnet. The rare earth sintered magnet has excellent residual flux density and coercive force. The rare earth sintered magnet is formed into the sintered magnet having an Nd-Fe-B system. COPYRIGHT KIPO 2012