| Summary: | 碩士 === 正修科技大學 === 機電工程研究所 === 98 === Because permanent magnet brushless DC micro-motors are small in volume, light,
highly efficient and reliable, they have a potential development in the
microminiaturization and high quality of electronic products. This study researches for a
more systematic design and analyzes the brushless DC motor to reduce cost and improve
the quality of the motor performance using the permanent magnet brushless DC
micro-motor that drives the motor’s cooling fan as the research tool. In the traditional
design, analytical method was used to compute for the design parameter and performance
parameter of the permanent magnet brushless DC motor to establish a permanent magnet
mathematical model. In the parameterization and optimization design considerations,
traditional magnetic circuit analysis can’t effectively finish the task. Thus, this study
combined the magnetic circuits. First, magnetic circuit method was used to design the
initial specification of the motor. Then, the constructed finite element model analyzes the
design parameter and performance of the motor through the software JMAG-Studio to
improve the performance of the design analysis.
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