An Integrated Arm and Integrated Three-Phase Module DC-AC Modular Converter with Minimal Energy Storage Requirements
Sponsor
The authors would like to thank the National Science Foundation for providing their support to part of this work under the Award Number 2138457.
Published In
2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)
Document Type
Citation
Publication Date
6-22-2023
Abstract
Modular converters gained popularity in low to high voltage applications since it was first introduced in early 2000s due to the design flexibility. Conventional modular converters require large submodule capacitance to accommodate single-phase AC processing power requirement that lead to the use of electrolytic capacitors. The use of electrolytic capacitor in each submodule increases the converter volume and affects the efficiency of the converter. This paper presents an integrated modular topology with integrated positive and negative arms and integrated half-bridge modules. The proposed circuit design permits significant reduction in energy storage requirement due to energy balance per switching cycle and thus a tiny shared capacitor (few micro-farads versus several milli-farads). The number of capacitors required in the converter is also reduced significantly because only one capacitor is needed between the positive and negative arms. The work is verified experimentally using a laboratory-scale prototype and circuit simulations.
Rights
© IEEE
Locate the Document
https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213479
DOI
10.23919/ICPE2023-ECCEAsia54778.2023.10213479
Persistent Identifier
https://archives.pdx.edu/ds/psu/40750
Publisher
IEEE
Citation Details
Lew, W., & Gupta, M. (2023, May). An Integrated Arm and Integrated Three-Phase Module DC-AC Modular Converter with Minimal Energy Storage Requirements. In 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023-ECCE Asia) (pp. 3358-3363). IEEE.