Single-phase SRM Drive for Torque Ripple Reduction and Power Factor Improvement

토크리플 억제와 역률개선을 위한 단상 SRM의 구동시스템

  • 안진우 (경성대학교 전기전자.메카트로닉스공학부) ;
  • 양가녕 (경성대학교 전기전자공학과)
  • Published : 2006.08.01

Abstract

In the single-phase switched reluctance motor (SRM) drive, the required DC source is generally supplied by the circuit consisting of bridge rectifier with diodes and many filter capacitances connected with AC source. Although the peak torque ripple of SRM is small because of large capacity of the capacitance, the charge and discharge time swhich the AC source acts on the capacitance are small and the peak current will pass on the side of source, so power factor and system efficiency decrease. Therefore a novel SRM drive system is presented in this paper, which includes drive circuit realizing reduction of torque ripple and improvement of power factor and switching topology. The proposed drive circuit consists of one switching part and diodes which can separate the output of AC/DC rectifier from the large capacitance and supply power to SRM alternately in order to realize reduction of torque ripple and improvement of power factor through the turn on and turn off of switching part. In addition, the validity of method is tested by simulation and experiment.

Keywords

References

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