저전압형 SRM 인버터의 병렬운전 위한 새로운 스위칭

New Switching Pattern for the Paralleling of SRM Low Voltage Inverter

  • 이상훈 (부산대학교 Mechatronics협동과정) ;
  • 박성준 (전남대 전기공학과) ;
  • 원태현 (동의공업대학 전기전자계열) ;
  • 안진우 (경성대 전기전자 Mechatronics공학부) ;
  • 이만형 (부산대학교 기계공학부)
  • 발행 : 2004.06.01

초록

The switched reluctance motor(SRM) has considerable potential for industrial applications because of its high result lily as a result of the absence of rotor windings. In some applications with SRM, paralleling strategy is often used for cost saving, increasing of current capacity and system reliability. A SRM inverter has very low ,switching frequency. This results in reducing the burden for a high-speed of the gate-amp interface circuit. and the linearity of optocoupler is used to protect the instantaneous peak current for the stable operation. In this paper, series resistor is used to equal the current sharing of each switching device and a linear gate-amp is proposed to protect the instantaneous peak current which occurs in transient state. The proposed paralleling strategy is verified by experimental results.

키워드

참고문헌

  1. B. K. Bose, T. J. E. Miller, P. M. Szezesny and W. H. Bocknell, 'Microcomputer Control of Switched Reluctance Motor', IEEE Trans. Industrial Application, vol. 22, no. 4, pp. 708-715, 1986 https://doi.org/10.1109/TIA.1986.4504782
  2. J. B. Forsythe, 'Paralleling of Power MOSFETs', IEEE-IAS Conference Record, October 1981
  3. J. B. Forsythe, 'Paralleling of Power MOSFETs For Higher Power Output', Technical Papers of International Rectifiers, 2002
  4. S. Tamai, M. Kinoshiad, 'Parallel operation of digital conrolled UPS system', Ind. Electron. Control and Inst. 1991 Int'l Conf., pp. 326-331, 1991 https://doi.org/10.1109/IECON.1991.239362
  5. S. Ogasawara, J. Takagaki, and H. Akagi, 'A novel control scheme of a parallel current-controlled PWM inverter', IEEE Trans. Ind. applicat., Vol. 28, No. 5, pp. 1023-1027, Sept./Oct. 1992 https://doi.org/10.1109/28.158825
  6. T. Kawabata and S. Higashino, 'Parallel Operation of Voltage Soruce Inverters', IEEE Transactions on Industry applications, Vol. 24, No. 2, pp. 281-287, 1988 https://doi.org/10.1109/28.2868
  7. J. W. Ahn et al, Novel Encoder for SRM Drive with High Resolution Angle Control, Proceedings of IEEE/ISIE 2001, pp. 1781-1785, 2001 https://doi.org/10.1109/ISIE.2001.931980
  8. M.Ehsani, and K.R.Ramani, 'Direct Control Strategies Based in Sensing Inductance in Switched Reluctance Motors', IEEE Trans. on PE, Vol.11, No.1, pp.74-82, 1996 https://doi.org/10.1109/63.484419