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Effect of magnet size on torque characteristic of three phase permanent magnet brushless DC motor

机译:磁体尺寸对三相永磁无刷直流电动机转矩特性的影响

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This paper deals with a design of high torque brushless DC motor (BLDC). This motor is designed in new arrangement of the stator teeth and operated as three phase motor. This motor is developed to produce high torque performance motor that could be used as in-wheel motor for agriculture applications such as tractors. The basic structure and principle of the motor is described briefly. The simulation Finite Element Method (FEM) technique is used in order to analyze the performance of the motor including flux flow path and flux distribution. Various sizes of magnet had been varied for torque and motor efficiency analysis by using simulation and analytical method, respectively. This found that the maximum output torque is achieved when both length and width of magnet is at largest size. The result also signifies that the increment of torque will not determine the increases in the motor efficiency as well. In the end, this paper could be used as a further research for the future.
机译:本文讨论了一种高转矩无刷直流电动机(BLDC)的设计。该电机采用定子齿的新布置设计,并作为三相电机运行。开发该电动机是为了生产高扭矩性能的电动机,该电动机可用作拖拉机等农业应用中的轮毂电动机。简要介绍了电动机的基本结构和原理。为了分析电动机的性能(包括磁通流动路径和磁通分布),使用了模拟有限元方法(FEM)技术。通过使用模拟和分析方法,已分别改变了各种尺寸的磁体用于转矩和电机效率分析。结果发现,当磁体的长度和宽度都达到最大尺寸时,可以实现最大输出转矩。该结果还表明,转矩的增加也不会决定电机效率的增加。最后,本文可以作为未来的进一步研究。

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