A Problem with IFOC and a New PWM Based 180 Degree Conduction Mode for Three Phase Inverter

Abstract:

Three Phase Inverters being used today are based on Field Orientation Control (FOC) and Sine Wave PWM (SPWM) techniques because 120 degree or 180 degree conduction methods produce high value of THD (Total Harmonic Distortion) in the power system. The Indirect Field Orientation Control (IFOC) method is difficult to implement in real systems due to speed sensor accuracy issue. This paper discusses the problem with IFOC and a PWM based 180 degree conduction mode for the three phase inverter. The modified control method improves THD and this paper also compares the results obtained using modified control method with the conventional 180 degree conduction mode.

• Periodical: Applied Mechanics and Materials (Volume 793)
• Pages: 267-273
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.793.267
• Online since: September 2015
• Authors: Usman Nasir*, Muhammad Tahir Rasheed, Muhammad Kamran Bodla, Muhammad Rafiq, S.M.R. Kazmi
• Keywords: Inverters, Sensorless Control, Total Harmonic Distortion, Variable Speed Drives

References

[1] Nisha G. K, Z.V. Lakaparampil, and S. Ushakumari, FFT Analysis for Field Oriented Control of SPWM and SVPWM Inverter fed Induction Machine With and Without Sensor, International Journal of Advanced Electrical and Electronics Engineering, vol. 2, Issue 4, p.30.

DOI: 10.1109/icgt.2012.6477943

[2] Joachim Holtz and Juntao Quan, Sensorless Vector Control of Induction Motors at Very Low Speed using a Nonlinear Inverter Model and Parameter Identification, IEEE Transactions on Industry Applications, vol. 38, No. 4, July/Aug 2002, pp.1087-1095.

DOI: 10.1109/tia.2002.800779

[3] Arpit Shah, Divyesh Mangroliya, and Nirav Vaghela, Simulation and Analysis of an Advanced 150° Conduction Mode for Three Phase Voltage Source Inverter, Association of Computer Electronics and Electrical Engineers, 2013, DOI: 03. AETS. 2013. 3. 101.

[4] Ebrahim Babaei, Mehdi Mahaei, Improving Output Voltage of the Three Phase Six-Switch Inverters, TELKOMNIA, vol. 9, No. 3, December 2011, pp.497-502.

DOI: 10.12928/telkomnika.v9i3.741

[5] Venkata Anil Babu Polisetty, B.R. Narendra2, Enhanced Performance of Multilevel Inverter Fed Induction Motor Drive, International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, vol. 2, Issue 11, November (2013).

[6] Arun Kumar. R, PG Scholar, PED, VIT University, Chennai Campus Indirect Field Oriented Control of Induction Motor Using Fuzzy Logic.

[7] A. S. N. Mokhtar, M. B. I. Raez, Mohd. Marufuzzaman, M. A. M. Ali, Hardware Implementation of a High Speed Inverse Park Transformation using CORDIC and PLL for FOC Brushless Servo Drive, ELEKTRONIKA IR ELEKTROTECHNIKA, vol. 19, No. 3, (2013).

DOI: 10.5755/j01.eee.19.3.1267

[8] C. C. de Azevedo, C.B. Jacobina, L.A.S. Ribeiro, A.M.N. Lima and A.C. Oliveira, Indirect Field Orientation for Induction Motors without Speed Sensor, Applied Power Electronics Conference and Exposition, vol. 2, March 2002, pp.809-814.

DOI: 10.1109/apec.2002.989337

[9] K. Vinoth Kumar, Prawin Angel Michael, Joseph P. John and Dr. S. Suresh Kumar, Simulation and Comparsion of SPWM and SVPWM Control for Three Phase Inverter, ARPN Journal of Engineering and Applied Sciences, vol. 5, No. 7, July (2010).

[10] Ananya Dutta, Some Aspects on 3-Phase Bridge Inverter (180 Degree Mode), International Journal of Engineering Inventions, vol. 3, Issue 4, November 2013, pp.18-21.