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A Single-Input Cascaded H-Bridge Grid-Connected PV Inverter with Integrated Boost Capability
ID：22 View Protection：ATTENDEE Updated Time：2025-10-11 22:14:02 Hits：213 Poster Presentation

Start Time：2025-11-09 09:01（Asia/Shanghai）

Duration：1min

Session：P Poster presentation » P22.Power electronics technology and application

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Abstract
To address the limitations of conventional cascaded H-bridge multilevel inverters, which require multiple isolated DC power supplies, a single-input cascaded H-bridge inverter with integrated boost capability is proposed in this paper. An in-depth analysis is conducted on its key technologies, including circuit topology, control strategy, and high-frequency switching process. The circuit topology is composed of a DC power supply, energy storage capacitors, a cascaded H-bridge, four-quadrant switches, and an LC output filter. It only relies on one independent DC power supply, with energy storage capacitors employed to replace the multiple DC power supplies in traditional cascaded H-bridge inverters. The proposed inverter not only retains the inherent advantages of traditional cascaded H-bridge inverters such as fewer required components and low output harmonics but also eliminates the need for multiple independent DC power supplies. This effectively reduces the system cost and endows the inverter with excellent application prospects in photovoltaic grid-connected systems.
Keywords
Cascaded H-bridge, multilevel inverter, single-input, storage capacitor
Speaker
Yanzhi Su
student Qingdao University

Submission Author
Yanzhi Su Qingdao University
Jiahui Jiang Qingdao University
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Important Date

  • Conference Date

    Nov 07

    2025

    to

    Nov 09

    2025

  • Oct 30 2025

    Draft paper submission deadline

  • Nov 10 2025

    Registration deadline

Sponsored By
IEEE西南交通大学IAS学生分会
Organized By
西南交通大学电气工程学院
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
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