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

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Implementation of Random Carrier-Frequency Modulation Scheme for a DSP based PWM Inverter for Acoustic Noise Reduction of Induction Motors

유도전동기의 소음저감을 위한 DSP기반 PWM인버터의 랜덤 캐리어 주파수 변조기법의 구현

  • 정영국 (대불대학교 컴퓨터정보공학부) ;
  • 나석환 (한국천문연구원) ;
  • 임영철 (전남대학교 전기공학과) ;
  • 정성기 (삼성전자 DA총괄 냉기 Digital그룹)
  • Published : 2003.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper describes an implementation of a DSP (Digital Signal Processor) controlled random carrier frequency modulation for the PWM inverter for acoustic noise reduction of induction motors. Real-time generation of the random variable and RPWM(Random PWM) along with the speed control was achieved by DSP TMS320C31. The experimental results show that the voltage and current harmonics are spread to a wide band area and the power spectrum of the acoustic switching noise was spread to create a more appealing, less annoying sound. Also, the speed response of the implemented method and the conventional method is nearly similar to each other from the viewpoint of the v/f constant control.

Keywords

References

  1. C. Wang, A. Astfalck, J. C. S.Lai, 'Sound power radiated from an inverter-driven induction motor: experimental investigation', IEE Proc. Electr. Power Appl., vol.149, no.1, Jan., pp.46-52, 2002 https://doi.org/10.1049/ip-epa:20020067
  2. Y. G. Jung, S. H. Na, Y. C. Lim and S. H. Yang, 'Reduction of audible switching noise in induction motor drives using random position PWM', IEE Proc. Electr. Power Appl., vol.149, no.3, May, pp.195-202, 2002 https://doi.org/10.1049/ip-epa:20020244
  3. I. Takahashi and H. Mochikawa, 'Optimum PWM waveforms of an Inverter for decreasing acoustic noise of an induction motor', IEEE Trans. Ind Applicat., vol.22. no.5, pp.828-834, 1986 https://doi.org/10.1109/TIA.1986.4504800
  4. C. M. Liaw, Y. M. Lin and K. I. Hwu,'Analysis, design and implementation of a random frequency PWM inverter, IEEE Trans. Power Electron., vol.15, no. 5, pp.843-854, 2000 https://doi.org/10.1109/63.867673
  5. T. G. Habetler and D. M. Divian, 'Acoustic noise reduction in sinusoidal PWM drives using a randomly modulated carrier', IEEE Trans. Power Electron., vol. 6, no. 3, pp.356-363, 1991 https://doi.org/10.1109/63.85902
  6. A. M. Trzynadlowski, J. K. Pedersen, R. L. Kirlin and S. Legowski, 'Space vector PWM technique with minimum switching losses and a variable pulse rate', IEEE Trans. Ind. Applicat., vol.44, no.2, pp.173-181, 1997 https://doi.org/10.1109/41.564155
  7. M. M. Bech, J. K. Pedersen and F. Blaabjerg, 'Random modulation techniques width fixed switching frequency for three-phase power converters', IEEE Trans. Power Electron., vol. 15, no.4. pp.753-761, 2000 https://doi.org/10.1109/63.849046
  8. S. Y. R. Hui, I. Oppermann and S. Sathiakumar, 'Microprocessor based random PWM schemes for dc-ac power conversion', IEEE Trans. Power Electron., vol.12, no.2, pp.253-260, 1997 https://doi.org/10.1109/63.558736
  9. F. Mihalic and M. Milanovic, EMI reduction in randomized boost rectifier' in Conf. Rec. IEEE ISIE, 1999, pp.457-462 https://doi.org/10.1109/ISIE.1999.798655
  10. 위석오, 정영국, 나석환, 임영철, '모터 구동 장치의 가청 소음저감을 위한 새로운 3상 Lead-Lag 랜덤 펄스 위치 PWM기법', 대한전기학회 B부문 논문지 51B-7-8, pp.387-398, 2002
  11. 정영국, 위석오, 나석환, 임영철, '모터 구동 장치의 가청 스위칭 소음 저감을 위한 2상 및 3상 랜덤 펄스 위치 PWM기법의 성능 비교', 전력전자학회논문지 제7권 제3호, pp.224-236, 2002
  12. D. E. Kunth, Seminumerical Algorithms(2nd ed.)., vol. 2 of The Art of the Computer Programming, Addison Wesley, 1981