Isolated Bi-directional Grid-connected Micro-inverter Based on Series Resonant Converter
Conference: PCIM Asia Shanghai Conference 2025 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
09/24/2025 - 09/26/2025 at Shanghai, China
doi:10.30420/566583063
Proceedings: PCIM Asia Shanghai Conference 2025
Pages: 8Language: englishTyp: PDF
Authors:
Wu, Deliang; Dabis, Motuma Adula; Zhu, Chaojie
Abstract:
This paper proposes an isolated bi-directional grid-connected micro-inverters for solar power and battery energy storage applications based on constant gain series resonant converter (SRC). The resonant converter is designed to always operates at its resonant frequency. This configuration features high efficiency and ease in circuit parameter design and control. A 1000 W hardware prototype is designed and tested. The performance of the inverter is validated by experimental results.