Reduced Rating T-Connected Autotransformer Based Thirty-Pulse AC-DC Converter for Vector Controlled Induction Motor Drives

  • Singh Bhim (Dept. of Electrical Engg., Indian. Institute of Technology) ;
  • Bhuvaneswari G. (Dept. of Electrical Engg., Indian. Institute of Technology) ;
  • Garg Vipin (Dept. of Electrical Engg., Indian. Institute of Technology)
  • 발행 : 2006.07.01

초록

The design and performance analysis of a reduced rating autotransformer based thirty-pulse AC-DC converter is carried out for feeding a vector controlled induction motor drive (VCIMD). The configuration of the proposed autotransformer consists of only two single phase transformers, with their windings connected in a T-shape, resulting in simplicity in design, manufacturing and in a reduction in magnetics rating. The design procedure of the autotransformer along with the newly designed interphase transformer is presented. The proposed configuration has flexibility in varying the transformer output voltage ratios as required. The design of the autotransformer can be modified for retrofit applications, where presently a 6-pulse diode bridge rectifier is used. The proposed thirty-pulse AC-DC converter is capable of suppressing less than $29^{th}$ harmonics in the supply current. The power factor is also improved to near unity in the wide operating range of the drive. A comparison of different power quality indices at AC mains and DC bus is demonstrated in a conventional 6-pulse AC-DC converter and the proposed AC-DC converter feeding a VCIMD. A laboratory prototype of the proposed autotransformer based 30-pulse AC-DC converter was developed with test results validating the proposed design and system.

키워드

참고문헌

  1. B.K.Bose, 'Recent advances in power electronics', IEEE Trans. on Power Electronics, Vol.7, No.1, pp. 2-16, Jan.1992 https://doi.org/10.1109/63.124572
  2. P.Vas, Sensorless vector and direct torque control, Oxford University Oxford University Press, 1998
  3. D.A.Jarc and R.G.Schieman, 'Power line considerations for variable frequency drives', IEEE Trans. Ind. Electron., Vol. 45, No. 4, pp.1099-1105, Sept.1985
  4. IEEE Guide for harmonic control and reactive compensation of Static Power Converters IEEE Standard 519-1992
  5. Bhim Singh, B.N.Singh, Ambrish Chandra, Kamal Al-Haddad, Ashish Pandey and Dwarka P.Kothari, 'A review of three-phase improved power quality ac-dc converters', IEEE Trans. Ind. Electronics., Vol. 51, No. 3, pp. 641-660, June 2004 https://doi.org/10.1109/TIE.2004.825341
  6. D. A. Paice, Power Electronic Converter Harmonics: Multipulse Methods for Clean Power, New York, IEEE Press, 1996
  7. D.A. Paice, 'Multipulse converter system', U.S. Patent No. 4876634, Oct. 24, 1989
  8. D.A.Paice, 'Transformers for multipulse AC/DC converters', U.S. Patent No. 6101113, 8 August 2000
  9. J.Ferens, H.D.Hajdinjak and S.Rhodes, '18-pulse rectification system using a wye connected autotransformer,' U.S. Patent No. 6,650,557 B2, Nov.18, 2003
  10. G. R. Kamath, D. Benson and R. Wood, 'A novel autotransformer based 18-pulse rectifier circuit,' in Proc., IEEE IECON'02, 2002, pp. 795-801
  11. K.Oguchi and T.Yamada, 'Novel 18-pulse diode rectifier circuit with non-isolated phase shifting transformers,' IEE Proc. Electr. Power Appl. Vol.14, No.1, Jan.1997. pp.1-5
  12. F.J.M.de Seixas and I.Barbi, 'A 12 kW three-phase low THD rectifier with high frequency isolation and regulated dc output,' IEEE Trans. on Power Electronics, Vol.19, No.2, March 2004, pp.371-377 https://doi.org/10.1109/TPEL.2003.823201
  13. Shota Miyairi, Shoji Iida, Kiyoshi Nakata and Shideo Masukawa, 'New method for reducing harmonics involved in input and output of rectifier with interhase transformer,' IEEE Trans. on Industry Applications, Vol.22, No.5, Oct./Nov.1986, pp. 790-97 https://doi.org/10.1109/TIA.1986.4504795
  14. M.E.Villablanca and J.A. Arrilaga, 'Pulse multiplication in parallel converters by multi tap control of interphase reactor,' IEE Proceeding-B, Vol.139, No.1, Jan.1992, pp 13-20
  15. C.L.Chen and G.K.Horng, 'A new passive 28-step current shaper for three-phase rectification,' IEEE Trans. on Industrial Electronics, Vol.47, No.6, December 2000, pp.1212-1219 https://doi.org/10.1109/41.887948
  16. M.G.Say, The Performance and Design of Alternating Current Machines, New York, Pitman Publishers, 1962