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http://dx.doi.org/10.9766/KIMST.2018.21.2.211

A Study on the Current Minimization of a Outer-Rotor Type BLDC Motor for Low Voltage Application  

Kim, Han-Deul (Department of Electrical Engineering, Graduate School of Hongik University)
Chung, Gyo-Bum (Department of Electrical Engineering, Graduate School of Hongik University)
Shin, Pan Seok (Department of Electrical Engineering, Graduate School of Hongik University)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.21, no.2, 2018 , pp. 211-216 More about this Journal
Abstract
This paper presents a numerical optimization technique and switching phase control technique aiming at improvement of efficiency of the low voltage BLDC motor. The optimization technique is performed using the generalized sensitivity technique, response surface method(RSM) and sampling minimization technique. In order to minimize current consumption of the BLDC motor, the switching method of the driving device is optimized using RSM with finite element analysis. The ratings of BLDC motor are 50 W, 24 V, 1200 rpm. As optimizing results, the input current is reduced from 2.78 to 2.51 [A] when the switching phase is shifted by -2.65 [DEG_ELC] at the rated driving speed of 1200 [rpm]. It is confirmed that the proposed method reduces the consuming current of the low voltage BLDC motor through switching phase control method using the numerical optimization method.
Keywords
Current Minimization; Optimization Techniques; BLDC; Propulsion Motor; Low Voltage;
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  • Reference
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