A New Current Sharing Strategy of SRM Using Parallel Winding Method

병렬권선 방식에 의한 SRM의 부하전류분담

  • Published : 2003.03.01

Abstract

The switched reluctance motor(SRM) has a considerable potential for industrial applications because of its high reliability as a result of the absence of rotor windings. In some applications with SRM, a parallel switching strategy is often used for cost saving, increasing of current capacity and system reliability. This paper proposes a new parallel switching strategy of SRM using parallel winding. While conventional parallel switching devices are connected in a phase winding, power devices are connected in the parallel windings wound in each pole of stator in the proposed method. Paralleling strategy for current sharing in the proposed method can be easily determined without considerations of any nonlinear characteristics of power devices such as conduction resistance, threshold voltage and gain factor. The proposed paralleling strategy is verified by the mathematical analysis and experimental results.

Keywords

References

  1. P.J. Lawrenson, J.M. Stephenson, P.T. Blenkinsop, J. Corda and N.N. Fulton ; 'Variable-speed switched reluctance motors,' Proc. IEE, Vol.127, Pt-B, No.4, pp.253-265, 1980
  2. J.W. Ahn et al, ; 'High Energy Conversion Strategy of SRM with Single-pulse Switching,' Proc. of IEEE/ISIE2001 , pp701-705, 2001. 7 https://doi.org/10.1109/ISIE.2002.1025816
  3. S. Tamai, M. Kinoshita, 'Parallel operation of digital controlled UPS system', Proc. of Int'l Conf. on IECI, pp, 326-331, 1991 https://doi.org/10.1109/IECON.1991.239362
  4. S. Ogasawara, J. Takagaki, and H. Akagi, 'A novel control scheme of a parallel current-controlled PWM inverter', IEEE Trans. on Industry Applications, Vol. 28, No.5, pp. 1023-1027, Sept./Oct. 1992 https://doi.org/10.1109/28.158825
  5. T. Kawabata and S. Higashino, 'Parallel Operation of Voltage Soruce Inverters', IEEE Trans. on Industry Applications, Vol. 24, No. 2, pp. 281-287, 1988 https://doi.org/10.1109/28.2868
  6. J. B. Forsythe, 'Paralleling of Power MOSFETs For Higher Power Output', Technical Papers of International Rectifiers, 2002