The invention offers a single-phase grid-connected inverter for decentralized solar PV power generation. It employs a unique combination strategy for two inverters, reducing voltage levels and improving efficiency. With 8 switches, including 4 operating at grid frequency, the system tolerates faults while minimizing leakage current and voltage stress during switching. Compared to existing schemes, it enhances efficiency, power extraction, and component reliability in solar PV systems.
Figure (1)It illustrates a grid connected inverter system, according to embodiments as described herein.
Developing efficient and reliable grid-connected inverters for decentralized solar PV power generation poses challenges. Existing solutions often suffer from inefficiencies, limited power extraction, and vulnerability to faults. Addressing these issues requires innovative approaches to reduce voltage levels, optimize energy extraction, and enhance fault tolerance while minimizing stress on components during operation.
- Modified Series Combination Strategy: Employs a unique strategy for two single-phase inverters with individual PV arrays, reducing voltage levels and enhancing efficiency
- Tolerance to Shoot Through Faults: Designed to withstand shoot-through faults, ensuring continuous operation and reliability
- Reduced Semiconductor Device Voltage Stress: Drastically lowers voltage stress during switching, resulting in decreased losses and higher efficiency
- Improved Efficiency and Power Extraction: Enables simultaneous power extraction from multiple PV arrays, boosting efficiency and power density
- Enhanced Converter Efficiency: Offers higher efficiency and reduced voltage stress compared to single-stage buck-boost/boost type inverters, improving overall performance
The invention involves a single-phase grid-connected inverter utilizing two separate PV arrays with 8 switches, 4 of which operate at grid frequency. This prototype reduces leakage current and voltage stress while improving fault tolerance and efficiency, demonstrating significant performance advantages over existing inverter systems.
The technology has been granted a patent and is currently available for licensing.
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- Increased Access to Renewable Energy: Facilitates wider adoption of solar PV systems for decentralized power generation, contributing to sustainable energy usage
- Enhanced Grid Stability: Improves grid stability by integrating decentralized solar PV systems, reducing dependence on centralized power sources
- Economic Growth: Stimulates economic growth by creating opportunities for investment, job creation, and local entrepreneurship in the renewable energy sector
- Environmental Conservation: Mitigates greenhouse gas emissions and environmental degradation by promoting the use of clean, renewable energy sources like solar power
- Technological Advancement: Drives innovation in solar PV technology, leading to advancements in efficiency, reliability, and affordability of renewable energy solutions
Decentralized power generation, solar photovoltaic systems, grid-connected inverters, renewable energy integration, smart grid technology, residential solar power systems, industrial solar power solutions
Geography of IP
Type of IP
1873/MUM/2015
464446