Modular Multilevel Series/Parallel Converter with Switched-Inductor Energy Transfer between Modules
This paper presents a modular multilevel series/parallel converter (MMSPC) with intermodule switched-inductor power transfer. The switched-inductor voltage conversion feature allows controllable and efficient transfer of energy between modules with nonnegligible voltage difference, providing both step-down and step-up functionalities. Thus, this converter can accurately control and rapidly adjust the voltage of each module to generate an ac output voltage waveform with a controllable number of levels, increasing the quality of the output. Moreover, the intrinsic DC-DC conversion feature can generate a dc controllable output voltage and enable new applications. In this text, we specifically demonstrate how the flexibility of obtaining both ac and dc output with the same setup renders the topology promising for battery energy storage systems and dc microgrid applications. Experimental results validate the topology and concept of an MMSPC with intrinsic switched-inductor conversion.
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- Electrical & Electronic Engineering
- 4009 Electronics, sensors and digital hardware
- 4008 Electrical engineering
- 0906 Electrical and Electronic Engineering
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Electrical & Electronic Engineering
- 4009 Electronics, sensors and digital hardware
- 4008 Electrical engineering
- 0906 Electrical and Electronic Engineering