Proceedings of the 2025 2nd International Conference on Electrical Engineering and Intelligent Control (EEIC 2025)

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Comparative Simulation Study of Unipolar And Bipolar Pwm Strategies for Single-Phase Full-Bridge Inverters

Authors
Shuhuan Mao1, *
1School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
*Corresponding author. Email: maoshuhuan@shu.edu.cn
Corresponding Author
Shuhuan Mao
Available Online 23 October 2025.
DOI
10.2991/978-94-6463-864-6_43How to use a DOI?
Keywords
Pwm Control; Single-Phase Inverter; Simulation; Thd Analysis; Filter Design
Abstract

With the increasing demand for high-quality electricity conversion in distributed energy systems, the importance of high-efficiency pulse width modulation (PWM) strategies in the design of one-way inverters is becoming more and more obvious. Based on MATLAB/Simulink, this study conducts a comparative simulation study on the unipolar and bipolar pulse width modulation (PWM) technologies of single-phase full-bridge inverters under RL load conditions. Using 30V DC power supply, 50Hz sine reference wave and 10kHz carrier frequency, with load parameters of R=10Ω and L=0.02H, its performance is evaluated by output waveform quality and total harmonic distortion (THD). Research shows that under the same filtering conditions (L=3.3mH, C=1.2mF), the THD (29.24%) of unipolar PWM is lower than that of bipolar PWM (33.54%), and the output voltage ripple is smaller, and the waveform smoothness is significantly improved. Therefore, unipolar PWM is more suitable for occasions with strict requirements for electrical energy quality, such as grid-based systems, while bipolar PWM provides a more cost-effective solution for non-critical application scenarios. The research results provide practical guidance for the selection of PWM strategies and the design of filters in power electronics applications.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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.

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Volume Title
Proceedings of the 2025 2nd International Conference on Electrical Engineering and Intelligent Control (EEIC 2025)
Series
Advances in Engineering Research
Publication Date
23 October 2025
ISBN
978-94-6463-864-6
ISSN
2352-5401
DOI
10.2991/978-94-6463-864-6_43How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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.

Cite this article

risenwbib
TY  - CONF
AU  - Shuhuan Mao
PY  - 2025
DA  - 2025/10/23
TI  - Comparative Simulation Study of Unipolar And Bipolar Pwm Strategies for Single-Phase Full-Bridge Inverters
BT  - Proceedings of the 2025 2nd International Conference on Electrical Engineering and Intelligent Control (EEIC 2025)
PB  - Atlantis Press
SP  - 464
EP  - 479
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-864-6_43
DO  - 10.2991/978-94-6463-864-6_43
ID  - Mao2025
ER  -