Radial flux permanent magnet generator have higher output voltage and torque capability than axial flux II. DESIGN OF OUTER ROTOR RADIAL FLUX PERMANENT permanent magnet generator. The efficiency is also higher than MAGNET GENERATOR axial flux permanent magnet due to the lack of rotor windings have high power density and torque per current ratio , but the The conventional RFPM generator is classified into innerlarge cogging torque can be generated. Cogging torque would be rotor and outer-rotor types.the source of acoustic noise and vibration. It reduce very important for initial activation of wind turbine. In this paper , we are designed of outer rotor radial flux permanent magnet generator which is integrated within blade and then the pole arc ratio and magnet structure was designed in order to reduce the cogging toque.
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