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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 3    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 3, March 2011 Edition
Near State PWM Algorithm with Reduced Switching Frequency and Reduced Common Mode Voltage Variations for Vector Controlled Induction Motor Drive
Full Text(PDF, 3000)  PP.  
Author(s)
K. Satyanarayana, J. Amarnath, A. Kailasa Rao
KEYWORDS
common mode voltage, induction motor drives, near state PWM, SVPWM, vector control.
ABSTRACT
In this paper a Near State Pulse Width Modulation (NSPWM) algorithm with reduced switching frequency is presented for vector controlled induction motor drives for reduced common mode voltage/currents. The proposed algorithm utilizes a group of three neighbor voltage vectors to construct the reference voltage space vector. In the proposed algorithm in each sector any one of the phases is clamped to either positive dc bus or negative dc bus. Hence, the proposed algorithm reduces the switching frequency and switching losses of the inverter. The simulation results illustrate that the proposed NSPWM algorithm results in reduced common mode voltage, has low switching frequency and has low switching losses of the inverter.
References
[1] F. Blaschke “The principle of field orientation as applied to the new transvector closed loop control system for rotating-field machines,"" Siemens Review, 1972, pp 217-220.

[2] Heinz Willi Vander Broeck, Hnas-Christoph Skudelny and Georg Viktor Stanke, “Analysis and realization of a pulsewidth modulator based on voltage space vectors” IEEE Trans. Ind. Applicat., vol. 24, no. 1, Jan/Feb 1988, pp. 142-150.

[3] Joachim Holtz, “Pulsewidth modulation – A survey” IEEE Trans. Ind. Electron.., vol. 39, no. 5, Dec 1992, pp. 410-420.

[4] J.M. Erdman, R. J. Kerkman, D.W. Schlegel, and G. L. Skibinski, “Effect ofPWMinverters onACmotor bearing currents and shaft voltages,” IEEE Trans. Ind. Appl., vol. 32, no. 2, pp. 250–259, Mar./Apr. 1996.

[5] G. L. Skibinski, R. J. Kerkman, and D. Schlegel, “EMI emissions of modern PWM AC drives,” IEEE Ind. Appl. Soc. Mag., vol. 5, no. 6, pp. 47–81, Nov./Dec. 1999.

[6] Y. S. Lai and F. S. Shyu, “Optimal common-mode voltage reduction PWM technique for inverter control with consideration of the dead-time effects—Part I: Basic development,” IEEE Trans. Ind. Appl., vol. 40, no. 6, pp. 1605–1612, Nov./Dec. 2004.

[7] Y. S. Lai, P. S. Chen,H.K. Lee, and J.Chou, “Optimal commonmode voltage reduction PWM technique for inverter control with consideration of the dead-time effects—Part II: Applications to IM drives with diode front end,” IEEE Trans. Ind. Appl., vol. 40, no. 6, pp. 1613–1620, Nov./Dec. 2004.

[8] J. Zitzelberger andW. Hofmann, “Reduction of bearing currents in inverter fed drive applications by using sequentially positioned pulse modulation,” EPE J., vol. 14, no. 4, pp. 19–25, 2004.

[9] M. Cacciato, A. Consoli, G. Scarcella, and A. Testa, “Reduction of common mode currents in PWM inverter motor drives” IEEE Trans. Ind. Applic. Vol.35, no.2, pp. 469-476, Mar/Apr, 1999.

[10] Emre Ün and A.M. Hava, “A near state PWM method with reduced switching frequency and reduced common mode voltage for three phase voltage source inverters” IEEE-IEMDC, pp. 235-240, May, 2007.

[11] A.M. Hava, and Emre Ün, “Performance Analysis of Reduced Common-Mode Voltage PWM Methods and Comparison with Standard PWM Methods for Three-Phase Voltage-Source Inverters” IEEE Trans. Power Electron., vol.24, no.1, pp. 241-252, Jan, 2009.

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