A review of grid connection performance of solar cells for a threephase structure of a 7-level cascaded inverter | ||
| Journal of Sustainable Food, Water, Energy and Environment | ||
| Volume 1, Issue 2, October 2025, Pages 62-73 PDF (618.86 K) | ||
| Document Type: Comprehensive review article | ||
| DOI: 10.21608/jsfw.2025.455532 | ||
| Authors | ||
| Ahmed M Montaser1; Rofida T Madani* 2; Rasha Kassem1; Shazly A Mohamed3 | ||
| 1Electrical Department, Faculty of Technology and Education, Sohag University | ||
| 2Master's student at Sohag University | ||
| 3Department of Electrical Engineering, Faculty of Engineering, South Valley University | ||
| Abstract | ||
| Nowadays, solar energy has become a competitive option for power generation in self-sufficient systems that may be used in both urban and rural electrification settings. High-quality alternating current output is required from the power electronic converters used in the conversion process in order to guarantee a voltage waveform that closely mimics a sinusoidal form. To get a high-quality output, the inverter's architecture and the pulse width modulation (PWM) technology it uses are essential factors. With a wide variety of industrial applications, the multilevel inverter has emerged as a major field of study in recent decades. Multilevel inverters (MLIs) are used to enhance output waveform characteristics (e.g., lower total harmonic distortion) and to offer a variety of inverter configurations and modulation methods. As a result, MLIs have attracted more attention from scholars in comparison to their two-level equivalents, attributable to their capacity to deliver reduced electromagnetic interference (EMI), enhanced efficiency, and elevated direct current connection voltages. The Cascaded H-bridge (CHB) inverter was discovered in fact more reliable, easier to build, and performing Impressively among many multilevel inverter configurations. It is the best option for energy transformation in a wide range of industrial applications because of its exceptional qualities, which include great adaptability and durability against defects. This operating efficiency for a three-phase, 7-level CHB inverter was thoroughly investigated at this work. Phase Shifted Pulse Width Modulation (PSPWM) methodology was employed at simulation to assess inverter performance. The three-phase, 7- level CHB inverter was the particular application for this PSPWM technology. MATLAB/SIMULINK software was employed at produce simulator conclusions. The thorough simulation and performance evaluation of a three-phase, sevenlevel CHB Multilevel Inverter using PSPWM in compliance with real-world operating conditions is what makes this work unique. As opposed to previous studies that primarily focus on generic CHB inverter designs, this paper carefully examines the complex application and performance metrics of PSPWM in a multi-phase system, clarifying issues regarding harmonic distortion properties, voltage waveform integrity, and modulation effectiveness. The suggested inverter is perfect for integration with renewable energy grids because simulations showed that it had better output waveform, reduced power losses, lower harmonic distortions, and superior voltage quality. | ||
| Keywords | ||
| Multilevel inverters (MLIs); electromagnetic interference (EMI); Cascaded H-bridge (CHB); Phase Shifted Pulse Width Modulation (PSPWM) | ||
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