Abstract
The paper is examined to establish the optimal set of control parameters for the design of a 3MW direct-drive permanent magnet synchronous generator by applying the Taguchi method. Taguchi orthogonal array is employed to determine the optimal combination of design parameters, including: steel lamination material, applied voltage, slot number, diameter of air-gap, magnet pole materials, magnet pole depth, stator outer/inner diameter, and length of stator core under the rated rotating speeds of the generator. Next, core loss database of used electrical steel laminations in generator was investigated. Effect of these control parameters of the permanent-magnet synchronous generator on the output power and efficiency are also analyzed in the paper. Results show that the designed 3MW direct-drive permanent magnet synchronous generator is capable of operating stably and assure the adequate 3MW power output and good efficiency greater than 95%.
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