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High-gain boost-type switched capacitor nine-level inverter topology with reduced device count
1Department of Electrical and Electronics Engineering, Faculty of Engineering and Computer Science, Jazan University, Jizan, 45142, Saudi Arabia. zalaas@jazanu.edu.sa.
Scientific Reports
|November 17, 2025
Summary
A new quadratic boost switched capacitor inverter for photovoltaic systems offers high voltage gain and efficiency. This novel topology reduces component count, enhancing reliability and compactness for renewable energy applications.
Area of Science:
- Electrical Engineering
- Renewable Energy Systems
Background:
- Photovoltaic (PV) systems require efficient DC-AC power conversion.
- Existing multilevel inverter topologies face challenges in achieving high voltage gain and component efficiency.
Purpose of the Study:
- To introduce a novel quadratic boost switched capacitor (SC) nine-level inverter topology.
- To evaluate its performance for renewable energy applications, specifically PV systems.
Main Methods:
- Development of a quadratic boost switched capacitor nine-level inverter.
- Component count analysis and comparison with existing SC-type topologies.
- Efficiency testing with a 350 VA load.
Main Results:
- The proposed inverter achieves high voltage gain via a quadratic boost mechanism and optimized SC network.
- It utilizes a reduced number of power switches and capacitors compared to conventional designs.
- A peak efficiency of 96.7% was recorded during testing.
Conclusions:
- The novel topology demonstrates significant advantages in voltage gain, component count, and efficiency.
- Its enhanced reliability and compact structure make it suitable for next-generation PV systems.
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