A Three-Port Power Electronic Transformer Based on Magnetic Integration
Source abstract
Abstract
This paper proposes a three-port power electronic transformer (PET) based on magnetic integration, where the modular multilevel converter (MMC) arm inductors and high-frequency transformer are integrated; thus, the low-voltage DC (LVDC) port can be directly obtained. Such a magnetic integration structure has advantages of reduction in magnetic volume and number of active switches, implying a compact structure and reduced cost. Compared with existing PETs, the proposed PET can save more than 60% of magnetic volume and more than 19% of device cost. The proposed PET is suitable for AC/DC hybrid distribution applications with medium-voltage DC (MVDC), medium-voltage AC (MVAC), and LVDC ports, especially for scenarios where moderate amounts of power (100 s of kW) are tapped from an LVDC port. The feasibility of the proposed three-port PET has been verified by simulation and experimental results.
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Research context
OpenAlex topics: HVDC Systems and Fault Protection · Silicon Carbide Semiconductor Technologies · High-Voltage Power Transmission Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
School of Electronic and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin 541004, China
State Grid Economic and Technological Research Institute Co., Ltd., Beijing 102209, China
Funding
National Natural Science Foundation of China
References (17)
Show source-provided references
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