The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Minimization Study of Consuming Current and Torque Ripple of Low Voltage BLDC Motor

저전압용 BLDC 전동기의 소비전류 및 토크리플 최소화 연구

  • Kim, Han-Deul (Dept. of Electrical Engineering, Hongik University) ;
  • Shin, Pan Seok (Dept. of Electrical Engineering, Hongik University)
  • Received : 2017.09.25
  • Accepted : 2017.11.21
  • Published : 2017.12.01
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Abstract

This paper presents a numerical optimization technique to reduce input current and torque ripple of the low voltage BLDC motor using core, coil and switching angle optimization. The optimization technique is employed using the generalized response surface method(RSM) and sampling minimization technique with FEM. A 50W 24V BLDC motor is used to verify the proposed algorithm. As optimizing results, the input current is reduced from 2.46 to 2.11[A], and the input power is reduced from 59 [W] to 51 [W] at the speed of 1000 [rpm]. Also, applied the same optimization algorithm, the torque ripple is reduced about 7.4 %. It is confirmed that the proposed technique is a reasonably useful tool to reduce the consuming current and torque ripple of the low voltage BLDC motor for a compact and efficient design.

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References

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