IJREE – Volume 4 Issue 4 Paper 4

Posted on by Researchscripteditor

MODELING AND SIMULATION OF AN INDUCTION MACHINE WITH A NOVEL CONCEPT OF A CONVERTER-FED ROTOR

Author’s Name :  P Mahesh Kumar | M L Dwarakanand

Volume 04 Issue 04  Year 2017  ISSN No: 2349-2503  Page no: 18-22

12

Abstract:

This paper investigates an induction machine with a novel concept of the rotor fed by a converter. The stator is Y connected and directly connected to the grid, while the rotor windings are open-ended and fed by a back-to-back converter with a floating capacitor. Power factor and efficiency improvements of the induction motor are studied with different settings of phase-shift angle between the two converters. Moreover, the dynamic performance of the induction machine is explored in MATLAB/Simulink and verified experimentally on a 1.8-kW induction machine in the laboratory. The result shows good agreement between simulation and experiment. At a constant speed, variable load operation of the induction machine is obtained by setting the frequency of the rotor voltage.

Keywords:

Back-to-Back Converter, Dynamic Performance, Induction Machine Drives, Open-End Winding and Unity Power Factor

References:

  1. S. Das, G. Das, P. Purkait, and S. Chakravorti, “Anomalies in harmonic distortion and Concordia pattern analyses in induction motors due to capacitor bank malfunctions,” in Proc. Int. Power Syst. Conf., Dec..27– 29, 2009, pp. 1–6.
  2. R. Spee and A. K. Wallace, “Comparative evaluation of power factor improvement techniques for squirrel cage induction motors,” IEEE Trans. Ind. Appl., vol. 28, no. 2, pp. 38–386, Mar./Apr. 1992.
  3. N. H. Malik and A. A. Mazi, “Capacitance requirements for isolated self-excited induction generators,” IEEE Trans. Energy Convers., vol. EC-2, no. 1, pp. 62–69, Mar. 1987.
  4. M. Ermis, Z. Cakir, I. Cadirci, G. Zenginobuz, and H. Tezcan, “Self excitation of induction motors compensated by permanently connected capacitors and recommendations for IEEE std 141-1993,” IEEE Trans. Ind. Appl., vol. 39, no. 2, pp. 313–324, Mar./Apr. 2003.
  5. L. Ruan, W. Zhang, and P. Ye, “Unity power factor operation for three phase induction motor,” in Proc. 3rd Int. Power Electron. Motion Control Conf., 2000, vol. 3, pp. 1414–1419.
  6. E. R. Laithwaite and S. B. Kuznetsov, “Cage-rotor induction motor with unity power factor,” IEEE Proc. B Elect. Power Appl., vol. 129, no. 3, pp. 143–150, May 1982.
  7. E. R. Laithwaite and S. B. Kuznetsov, “Test results obtained from a brushless unity-power-factor induction machine,” IEEE Trans. Power App. Syst., vol. PAS-100, no. 6, pp. 2889–2897, Jun. 1981.
  8. “Discussion on unity-power-factor induction motors,” IEEE Proc. Elect. Power Appl., vol. 130, no. 1, pp. 60–68, Jan. 1983.
  9. F. J. T. E. Ferreira and A.T. Almeida, “Novel multiflux level, three phase, squirrel-cage induction motor for efficiency and power factor maximization,” IEEE Trans. Energy Convers., vol. 23, no. 1, pp. 101–109, Mar. 2008.
  10. M. V. Aware, S. G. Tarnekar, and A. G. Kothari, “Unity power factor and efficiency control of a voltage source inverter-fed variable-speed induction motor drive,” IEE Proc. Elect. Power Appl., vol. 147, no. 5, pp. 422–430. Sep. 2000.
  11. M. Morimoto, K. Sumito, S. Sato, K. Oshitani, M. Ishida, and S. Okuma, “High efficiency, unity power factor VVVF drive system of an induction motor,” IEEE Trans. Power Electron., vol. 6, no. 3, pp. 498–503, Jul. 1991.
  12. S. Kwak and H. A. Toliyat, “Comparison and assessment of current source- inverter-fed induction motor drive systems with unity power factor,” in Proc. IEEE 29th Annu. Ind. Electron. Soc. Conf., Nov. 2–6, 2003, vol. 1, pp. 232–237.