The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Current Control of Three-Phase PWM Rectifiers without Phase Current Sensors

상전류 센서없는 3상 PWM 3상 정류기의 전류제어

  • 임대식 (영남대 대학원 전기공학과) ;
  • 이동춘 (영남대 전기전자공학부)
  • Published : 2000.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper proposes a novel current control method of three-phase PWM rectifiers using estimated currents without phase current sensors. The phase currents are reconstructed from switching states of the rectifier and the measured dc output currents. To eliminate the calculation time delay effect of the microprosessor, the current at the next sampling instant are predicted by a predictive state observer and then are used for feedback control. Experimental results show that the control performance of the proposed system is almost the same as that of the phase current sensor-based system.

Keywords

References

  1. J. W. Dixon and B. T. Ooi, 'Indirect current control of a unity power factor sinusoidal boost type 3 phase rectifier,' IEEE Trans. on IA, vol. 35, no. 4, pp, 508-515, Nov. 1988 https://doi.org/10.1109/41.9172
  2. T. C. Green and B. W. Williams, 'Derivation of motor line-current waveform from the de-link current of an inverter,' IEE Proc. B, vol. 136, no. 4, pp. 196-204, 1989
  3. J. K. Moynihan and S. Bolognani, 'Single sensor current control of ac servo drives using digital processor,' EPE Proc., vol 4, pp, 415-421, 1993
  4. F. Blaabjerg and J. K. Pedersen, 'An ideal PWM-VSI inverter using only one current sensor in the dc-link,' PEVD Proc., pp.458-464, 1994
  5. F. Blaahjerg and J. K. Pederson, 'Single current sensor technique in de link of three- phase PWM voltage source inverter: a review and a novel solution,' IEEE Trans. on IA, vol. 33, no. 5, pp, 1241-1253, 1997 https://doi.org/10.1109/28.633802
  6. 이우철, 현동석, '상태 관측기를 이용한 3상 전압 원 PWM 컨버터의 단일 센서 전류 제어', 전력전자학회 논문지, 제4권, 3호, pp. 249-256, 1999
  7. 임대식, 김해준, 이동춘, '상전류 센서없는 3상 PWM 정류기의 전류제어', 전력전자학술대회 논문집, pp. 307- 310, 1999
  8. 이지명, 이현동, 이동춘, '인버터의 포화를 고려한 전류제어기의 Anti-windup', 대한전기학회 논문지, 제 47권, 9호, pp. 1399-1405, 1998
  9. G. F. Franklin, J. D. Powell, and M. L. Workman, Digital control of dynamic systems, Addison-Wesley, 1990