Comparative Analysis of Bipolar and Unipolar SPWM Techniques in PIC-Based Pure Sine Wave Single-Phase Inverters

Authors

  • Aymen Chaaira Processes, Energy, Environment and Electrical Systems Laboratory, University of Gabes, Gabes, Tunisia
  • Habib Kraiem Department of Electrical Engineering, College of Engineering, Northern Border University, Arar, Saudi Arabia
  • Rabiaa Gamoudi Processes, Energy, Environment and Electrical Systems Laboratory, University of Gabes, Gabes, Tunisia
  • Lassaad Sbita Processes, Energy, Environment and Electrical Systems Laboratory, University of Gabes, Gabes, Tunisia
Volume: 14 | Issue: 3 | Pages: 14395-14401 | June 2024 | https://doi.org/10.48084/etasr.7150

Abstract

This paper provides a comparative analysis of bipolar versus unipolar Sinusoidal Pulse Width Modulation (SPWM) in DC-AC inverters, focusing on Total Harmonic Distortion (THD) across modulation indices and the latter’s effects on the R-L loads. Using the PIC18F2431 microcontroller for its efficiency, a single-phase inverter accomplished to deliver a high-fidelity sine wave. This study discovered that while both SPWM methods reduce harmonics, the unipolar approach yields more uniform THD reduction and superior performance, particularly noticeable in RL load conditions, where minimal harmonic distortion is crucial. The bipolar inverter, despite a higher initial THD, shows a considerable improvement at higher indices, significantly enhanced by an LC low-pass filter. This filter is a key component in achieving sub-1% THD levels at full modulation, ensuring optimal sine wave quality. The findings highlight the operational differences between the SPWM techniques and the importance of the LC filters in ameliorating the inverter output for various power applications.

Keywords:

Single Phase Inverter, Bipolar SPWM, Unipolar SPWM, THD, PIC18F2431

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References

T. Sengodan, M. Murugappan, and S. Misra, Advances in Electrical and Computer Technologies Select Proceedings of ICAECT 2020: Select Proceedings of ICAECT 2020. 2021. DOI: https://doi.org/10.1007/978-981-15-9019-1

S. M. M. Islam and G. M. Sharif, "Microcontroller based sinusoidal PWM inverter for photovoltaic application," in 2009 1st International Conference on the Developements in Renewable Energy Technology (ICDRET), Dec. 2009, pp. 1–4. DOI: https://doi.org/10.1109/ICDRET.2009.5454227

T. A. Trivedi, R. Jadeja, and P. Bhatt, "A Review on Direct Power Control for Applications to Grid Connected PWM Converters," Engineering, Technology & Applied Science Research, vol. 5, no. 4, pp. 841–849, Aug. 2015. DOI: https://doi.org/10.48084/etasr.544

A. Abuelnaga, M. Narimani, and A. Bahman, "A Review on IGBT Module Failure modes and Lifetime Testing," IEEE Access, vol. PP, pp. 1–1, Jan. 2021. DOI: https://doi.org/10.1109/ACCESS.2021.3049738

A. Nathan, S. K. Saha, and R. M. Todi, Eds., 75th Anniversary of the Transistor, 1st edition. Hoboken, New Jersey, USA: Wiley-IEEE Press, 2023. DOI: https://doi.org/10.1002/9781394202478

Μ. Maghraby, Η. A. Ashour, and Α. A. Hossam Eldin, "Analysis and implementation of discrete SPWM signals for grid-connected inverter with LCL filter," in 2017 Nineteenth International Middle East Power Systems Conference (MEPCON), Cairo, Egypt, Sep. 2017, pp. 515–520. DOI: https://doi.org/10.1109/MEPCON.2017.8301229

A. S. Haider, A. Naz, F. Akhter, W. Azhar, and R. Mehmood, "A Novel Efficient Sine Wave Inverter with Custom Programmed PWM and Intelligent Control," Engineering, Technology & Applied Science Research, vol. 6, no. 2, pp. 956–963, Apr. 2016. DOI: https://doi.org/10.48084/etasr.648

R. Jadeja, A. Ved, and S. Chauhan, "An Investigation on the Performance of Random PWM Controlled Converters," Engineering, Technology & Applied Science Research, vol. 5, no. 6, pp. 876–884, Dec. 2015. DOI: https://doi.org/10.48084/etasr.599

A. A. Qazalbash, A. Amin, A. Manan, and M. Khalid, "Design and implementation of microcontroller based PWM technique for sine wave inverter," in 2009 International Conference on Power Engineering, Energy and Electrical Drives, Mar. 2009, pp. 163–167. DOI: https://doi.org/10.1109/POWERENG.2009.4915171

R. D. Albu and C.-E. Gordan, "Single-Phase SPWM Inverter Ordered With Microcontroller," in 2023 17th International Conference on Engineering of Modern Electric Systems (EMES), Jun. 2023, pp. 1–5. DOI: https://doi.org/10.1109/EMES58375.2023.10171665

J. Soomro, T. D. Memon, and M. A. Shah, "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), Nov. 2016, pp. 277–282. DOI: https://doi.org/10.1109/ICAEES.2016.7888052

J. Lei and J. Sa, "Design and Implementation of a Single-Phase Bipolar SPWM Inverter Power Supply Based on STM32," in 2020 3rd International Conference on Advanced Electronic Materials, Computers and Software Engineering (AEMCSE), Apr. 2020, pp. 641–644. DOI: https://doi.org/10.1109/AEMCSE50948.2020.00140

S. Hannan, S. Aslam, and M. Ghayur, "Design and real-time implementation of SPWM based inverter," in 2018 International Conference on Engineering and Emerging Technologies (ICEET), Feb. 2018, pp. 1–6. DOI: https://doi.org/10.1109/ICEET1.2018.8338637

S. Tyagi and I. Mayergoyz, "Optimal Time-Domain Sinusoidal Pulse Width Modulation Technique." arXiv, Jun. 12, 2020. DOI: https://doi.org/10.1063/1.5134774

N. Ahmed and Z. R. Khan, "Microcontroller Based Pure Sine Wave Inverter," in 2021 IEEE International Conference in Power Engineering Application (ICPEA), Mar. 2021, pp. 173–177. DOI: https://doi.org/10.1109/ICPEA51500.2021.9417841

Y. Birbir, K. Yurtbasi, and V. Kanburoglu, "Design of a single-phase SPWM inverter application with PIC micro controller," Engineering Science and Technology, an International Journal, vol. 22, no. 2, pp. 592–599, Apr. 2019. DOI: https://doi.org/10.1016/j.jestch.2018.11.014

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How to Cite

[1]
A. Chaaira, H. Kraiem, R. Gamoudi, and L. Sbita, “Comparative Analysis of Bipolar and Unipolar SPWM Techniques in PIC-Based Pure Sine Wave Single-Phase Inverters”, Eng. Technol. Appl. Sci. Res., vol. 14, no. 3, pp. 14395–14401, Jun. 2024.

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