Design and Analysis of Characteristic Improvement for Brushless Direct Current Motor
碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 96 === The permanent magnetic brushless DC motors are used widely in the recent years. The motors in the different construction design and the signal quality of the source will produce the cogging torque and the different torque, and then influence the operating ch...
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| Format: | Others |
| Language: | zh-TW |
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2008
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| Online Access: | http://ndltd.ncl.edu.tw/handle/ds7smq |
| Summary: | 碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 96 === The permanent magnetic brushless DC motors are used widely in the recent years. The motors in the different construction design and the signal quality of the source will produce the cogging torque and the different torque, and then influence the operating characteristic and efficiency of motors. Therefore, this thesis uses finite element software to analyze the characteristic of motors for different construction and voltage signal. This thesis will analyze permanent magnet brushless DC motors in optimum design.
Analyzing the cogging torque of surface permanent magnet in the brushless DC motors is the main purpose of the thesis. Comparing to the other models of permanent magnetic brushless DC motors which get smaller cogging torque. The following analytic problems are included: (1) the motors with different construction (2) apply different voltage source. Above problems will influence the cogging torque, magnetic flux density and magnetic field intensity of motors. The analytical data can be taken as reference to improve the cogging torque in the design and compared for design suggestions.
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