Abstract

This study deals with the performance analysis of Pulse Width Modulation (PWM) scheme for three phase voltage source inverter though intermingling of multiple carriers. The proposed PWM scheme using two groups of carriers (inverted Sine wave and Triangle wave), each group having carrier and its 90° shifted. The arbitrary selection of these carriers is based on the linear feedback shift registers value (‘0’ or ‘1’). This random carrier selection is serving to improve the spectral quality of the output of the inverter. This improved waveform has been derived from third harmonic injected sine PWM technique. Simulation results confirm the effectiveness of the proposed scheme in providing very less harmonic noises with minimum distortion and satisfactory fundamental component. This study also shows the implementation compatibility of the work with Field Programmable Gate Array environment.

Keywords:

Harmonic spread factor, linear feedback shift register, pseudo random binary sequence, random pulse width modulation, voltage source inverter,

References

1. Boopathi, R., P. Muthukumar, P. Melba Mary and S. Jeevananthan, 2012. Investigations on harmonic spreading effects of SVPWM switching patterns in VSI fed AC drives. Proceeding of IEEE International Conference on Advances in Engineering, Science and Management (ICAESM, 2012), pp: 651-656.
   
2. Gayathri, N. and M.C. Chandorkar, 2008. Design and implementation of FPGA based phase modulation control for series resonant inverters. Sadhana, 33(5): 505-522.
   CrossRef    
3. Hui, S.Y.R., I. Oppermann, F. Pasalic and S. Sathiakumar, 1995. Microprocessor-based random PWM schemes for DC-AC power conversion. Proceeding of 26th Annual IEEE Power Electronics Specialists Conference (PESC '95) Record, pp: 307-312.
   CrossRef    
4. Kim, K.S., Y.G. Jung and Y.C. Lim, 2009. A new hybrid random PWM scheme. IEEE T. Power Electr., 24(1): 192-200.
   CrossRef    
5. Lim, Y.C., S.O. Wi, J.N. Kim and Y.G. Jung, 2010. A pseudo random carrier modulation scheme. IEEE T. Power Electr., 25(4): 797-805.
   CrossRef    
6. Nandhakumar, R. and S. Jeevananthan, 2007. Inverted sine carrier pulse width modulation for fundamental fortification in DC-AC converters. Proceeding of 7th International Conference on Power Electronics and Drive Systems (PEDS '07), pp: 1028-1034.
   CrossRef    
7. Seyezhai, R. and B.L. Mathur, 2009. Performance evaluation of inverted sine PWM techniques for an asymmetric multilevel inverter. J. Theor. Appl. Inform. Technol., 2(2): 91-98.
   
8. Sreekanth, C. and R. Moni, 2013. FPGA based implementation of amplitude modulated triangular carrier PWM. Prz. Elektrotechniczn., ISSN: 0033-2097, R. 89 NR 7/2013, pp: 41-44.
   
9. Stephen, V., L.P. Suresh and P. Muthukumar, 2012. Field programmable gate array based RF-THI pulse width modulation control for three phase inverter using matlab modelsim cosimulation. Am. J. Appl. Sci., 9(11): 1802-1812.
   CrossRef    

Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.