Photovoltaic-Based Z-Source Inverter for Grid Integration
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2025
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| _version_ | 1866901256103002112 |
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| author | Meghraj Morey |
| author_facet | Meghraj Morey |
| contents | This paper proposes an Impedance-Source Inverter (ZSI) for a three-phase photovoltaic (PV) system connected to the grid. Unlike conventional Voltage Source Inverters (VSI), the ZSI incorporates a shoot-through mode that enables buck–boost operation directly, eliminating the need for an additional DC–DC stage. This mode is achieved using a modified Pulse Width Modulation (PWM) technique, allowing flexible control of the output voltage while improving system reliability. The Z-source network, composed of inductors and capacitors, facilitates single-stage power conversion, simplifying the system and enhancing efficiency. The paper details the design considerations for these passive components to ensure optimal performance and stable operation. To verify the design, the ZSI-based PV system was modeled and simulated in MATLAB/Simulink. The results confirm effective voltage regulation, reliable buck–boost capability, and efficient power transfer to the grid, highlighting the suitability of the proposed configuration for renewable energy applications. |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18103653 |
| institution | Zenodo |
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| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Photovoltaic-Based Z-Source Inverter for Grid Integration Meghraj Morey DC-DC photovoltaic; Z-source Inverter; Shoot-through Boost Control component; Pulse Width Modulation. This paper proposes an Impedance-Source Inverter (ZSI) for a three-phase photovoltaic (PV) system connected to the grid. Unlike conventional Voltage Source Inverters (VSI), the ZSI incorporates a shoot-through mode that enables buck–boost operation directly, eliminating the need for an additional DC–DC stage. This mode is achieved using a modified Pulse Width Modulation (PWM) technique, allowing flexible control of the output voltage while improving system reliability. The Z-source network, composed of inductors and capacitors, facilitates single-stage power conversion, simplifying the system and enhancing efficiency. The paper details the design considerations for these passive components to ensure optimal performance and stable operation. To verify the design, the ZSI-based PV system was modeled and simulated in MATLAB/Simulink. The results confirm effective voltage regulation, reliable buck–boost capability, and efficient power transfer to the grid, highlighting the suitability of the proposed configuration for renewable energy applications. |
| title | Photovoltaic-Based Z-Source Inverter for Grid Integration |
| topic | DC-DC photovoltaic; Z-source Inverter; Shoot-through Boost Control component; Pulse Width Modulation. |
| url | https://doi.org/10.5281/zenodo.18103653 |