Matlab/Simulink ile Bipolar ve Unipolar PWM Kontrol Tekniklerinin Karşılaştırmalı Olarak İncelenmesi

Year 2021, Issue: 24, 309 - 313, 15.04.2021

Mustafa Sacid Endiz , Ramazan Akkaya

https://doi.org/10.31590/ejosat.900868

Cited By: 2

Abstract

Farklı kaynaklardan elde edilen DC gücü genliği ve frekansı ayarlanabilen AC güce dönüştürebilen güç elektroniği devrelerine inverter adı verilmektedir. AC çıkış gerilimi anahtarlara uygulanan DC gerilimin uygun şekilde anahtarlanmasıyla elde edilmektedir. Anahtarların sürülmesi amacıyla kullanılan en popüler yöntem PWM tekniğidir. Bu çalışmada, inverter devrelerinde güç katındaki yarı iletken elemanların anahtarlanması amacıyla yaygın olarak kullanılan taşıyıcı tabanlı sinüzoidal PWM yöntemlerinden bipolar ve unipolar PWM kontrol teknikleri üstünlükleri yönünden incelenmiştir. Her iki kontrol tekniği Matlab/Simulink ortamında taşıyıcı ve referans sinyaller kullanılarak modellenmiş ve oluşturulan tek fazlı tam köprü inverter devresi üzerinde uygulanarak benzetim çalışmaları yapılmıştır. Çıkış gerilim sinyalinin kalitesi bakımından farklı modülasyon indekslerinde gerçekleştirilen benzetim çalışmaları sonucunda, unipolar PWM tekniğinin bipolar PWM tekniğine göre daha etkili olduğu görülmüştür.

Keywords

Tam köprü İnverter, Bipolar PWM, Unipolar PWM, Toplam Harmonik Bozulma, Gerilim Stresi

Comparative Study of Bipolar and Unipolar PWM Control Techniques using Matlab/Simulink

Abstract

Power electronic circuits that can convert DC power obtained from different sources into AC power with adjustable amplitude and frequency are called inverters. The AC output voltage is obtained by properly switching the DC voltage applied to the switches. The most popular method for driving switches is the PWM technique. In this study, bipolar and unipolar PWM control techniques, which are widely used carrier-based sinusoidal PWM methods for the switching of the semiconductor elements on the power stage in inverter circuits, have been investigated in terms of their advantages. Both control techniques have been modeled using carrier and reference signals in Matlab/Simulink environment and simulated by applying them on a single phase full bridge inverter circuit. As a result of the simulation studies performed in different modulation indexes in terms of the quality of the output voltage signal, it has been found that the unipolar PWM technique is more effective than the bipolar PWM technique. 

Keywords

Full Bridge Inverter, Bipolar PWM, Unipolar PWM, Total Harmonic Distortion, Voltage Stress

References

• Endiz, M. S., Erel, S., & Yagci, M. (2015). Comparative study of single phase power inverters based on efficiency and harmonic analysis. i-Manager's Journal on Instrumentation & Control Engineering, 4(1), 1.
• Endiz, M. S., & Akkkaya, R. (2020, June). A Novel Single Phase Modified Quasi-Z-Source Inverter Circuit Design and Analysis. In 2020 24th International Conference Electronics (pp. 1-6). IEEE.
• Engin, M., & Gülersoy, T. (2018). Hibrid güç sistemleri için evirici tasarımı. Avrupa Bilim ve Teknoloji Dergisi, (14), 228-234.
• Giri, S. K., Chakrabarti, S., Banerjee, S., & Chakraborty, C. (2016). A carrier-based PWM scheme for neutral point voltage balancing in three-level inverter extending to full power factor range. IEEE Transactions on Industrial Electronics, 64(3), 1873-1883.
• González, R., Lopez, J., Sanchis, P., & Marroyo, L. (2007). Transformerless inverter for single-phase photovoltaic systems. IEEE Transactions on Power Electronics, 22(2), 693-697.
• Kabalcı, E. (2020). Review on novel single-phase grid-connected solar inverters: Circuits and control methods. Solar Energy, 198, 247-274.
• Khluabwannarat, P., Thammarat, C., Tadsuan, S., & Bunjongjit, S. (2007, December). An analysis of iron loss supplied by sinusoidal, square wave, bipolar PWM inverter and unipolar PWM inverter. In 2007 International Power Engineering Conference (IPEC 2007) (pp. 1185-1190). IEEE.
• Llorente, S., Monterde, F., Burdio, J. M., & Acero, J. (2002, March). A comparative study of resonant inverter topologies used in induction cookers. In APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No. 02CH37335) (Vol. 2, pp. 1168-1174). IEEE.
• Namboodiri, A., & Wani, H. S. (2014). Unipolar and bipolar PWM inverter. International Journal for Innovative Research in Science & Technology, 1(7), 237-243.
• Sharma, C. S., Patel, N., & Chaturvedi, H. (2016). Unipolar and Bipolar PWM Inverter Fed Induction Motor. no, 12, 1661-1664.
• Soomro, J., Memon, T. D., & Shah, M. A. (2016, November). Design and analysis of single phase voltage source inverter using Unipolar and Bipolar pulse width modulation techniques. In 2016 International Conference on Advances in Electrical, Electronic and Systems Engineering (ICAEES) (pp. 277-282). IEEE.
• Wu, T. F., Kuo, C. L., Sun, K. H., & Hsieh, H. C. (2013). Combined unipolar and bipolar PWM for current distortion improvement during power compensation. IEEE Transactions on Power Electronics, 29(4), 1702-1709.
• Zope, P. H., Bhangale, P. G., Sonare, P., & Suralkar, S. R. (2012). Design and Implementation of carrier based Sinusoidal PWM Inverter. International Journal of advanced research in electrical, electronics and instrumentation engineering, 1(4), 230-236.