Efficiency optimization control for single-phase brushless DC fan motors

Wei Chao Chen*, Ying-Yu Tzou

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

This paper proposes a modeling method for characterization of single-phase brushless dc (BLDC) fan motors in applications to information appliances. The nonlinear back-EMF induced by the rotor flux with stator winding is modeled by a look-up table. By parameter identification and computer simulation, this modeling method assists designers in waveform analysis and control loop design. Simulation results have been verified with the measured experimental results. Moreover, in order to improve the efficiency of the BLDC fan motor over the entire speed control range, this paper develops an efficiency optimization control method based on a closed-loop current control scheme by using the Hall sensor feedback. The proposed control scheme has been realized and compared with the conventional open-loop PWM control scheme. Experimental results show a 40% reduction of peak current and 18% reduction of RMS current have been achieved at rotation speed of 3000 RPM.

Original languageEnglish
Title of host publication2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09
Pages1913-1918
Number of pages6
DOIs
StatePublished - 1 Dec 2009
Event2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09 - Wuhan, China
Duration: 17 May 200920 May 2009

Publication series

Name2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09

Conference

Conference2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09
CountryChina
CityWuhan
Period17/05/0920/05/09

Keywords

  • Current-control scheme
  • Efficiency optimization
  • Modeling
  • Parameter identification
  • Single-phase brushless dc fan motor

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  • Cite this

    Chen, W. C., & Tzou, Y-Y. (2009). Efficiency optimization control for single-phase brushless DC fan motors. In 2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09 (pp. 1913-1918). [5157709] (2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09). https://doi.org/10.1109/IPEMC.2009.5157709