Til hovedinnhold

Passive Components Size Reduction in Solid-State Transformers for EV Fast Charging System

Passive Components Size Reduction in Solid-State Transformers for EV Fast Charging System

Kategori
Del av bok/rapport
Sammendrag
Abstract—This paper discusses the application of the concept of solid-state transformer (SST) to electric vehicle (EV) fast charging system, which can realize a large volume reduction from the traditional system based on line frequency transformer (LFT). For a 6.6 kV–800 V / 200-kW AC to DC SST, sizes of passive components are analyzed and an oscillating power control (OPC) is discussed to decrease the DC-link capacitance and the volume of the capacitors in the SST. An optimization based on the model of medium frequency transformer (MFT) to find the minimal total volume of MFTs with a given core is performed. As one of the system level parameters, the number of cascade and resulting unit power capacity are treated as a parameter for the optimization. The results indicate that increasing unit power capacity for the given core shape results in total volume reduction without major power loss increase.
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • Tsukuba Daigaku
  • SINTEF Energi AS / Energisystemer
År
2019
Forlag
IEEE
Bok
IEEE International Conference on DC Microgrids - ICDCM 2019
ISBN
978-1-7281-3491-8