Review of solid-state transformer applications on electric vehicle DC ultra-fast charging station

S Valedsaravi, A El Aroudi, L Martínez-Salamero - Energies, 2022 - mdpi.com
The emergence of DC fast chargers for electric vehicle batteries (EVBs) has prompted the
design of ad-hoc microgrids (MGs), in which the use of a solid-state transformer (SST) …

Solid-state transformer and hybrid transformer with integrated energy storage in active distribution grids: Technical and economic comparison, dispatch, and control

L Zheng, A Marellapudi, VR Chowdhury… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
Solid-state transformer (SST) and hybrid transformer (HT) are promising alternatives to the
line-frequency transformer (LFT) in smart grids. The SST features medium-frequency …

An improved design procedure for a 10 kHz, 10 kW medium-frequency transformer considering insulation breakdown strength and structure optimization

W Wang, Y Liu, J He, D Ma, L Hu, S Yu… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
Medium-frequency transformer (MFT) is an essential device in the smart solid-state
transformer (SST) prototype. Compared with the well-defined principle design of magnetic …

Optimal scheduling of a hybrid AC/DC multi-energy microgrid considering uncertainties and Stackelberg game-based integrated demand response

Y Cai, Z Lu, Y Pan, L He, X Guo, J Zhang - International Journal of Electrical …, 2022 - Elsevier
The emergence of solid-state transformers (SSTs) enriches the system structure and
operation mode of the multi-energy microgrid (MEMG). This paper depicts a novel hybrid …

Optimization and tradeoff of DC-Bus voltage ripple and DAB current stress in two-stage single-phase converter by double line-frequency power control

F Xiong, P Wu, H Yang, K Zhang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
With consideration of double-line-frequency instantaneous power in two-stage single-phase
system, a double-line-frequency power control method is proposed in this article to achieve …

Low-frequency voltage ripples decoupling with switched-capacitor conversion for an MMC-based SST

Z Bu, J Teng, X Sun, Y Pan… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
The modular multilevel converter based solid state transformer (MMC-SST) is characterized
by a large number of switches and large-size submodule (SM) capacitors, complex system …

Analysis and comparison of series resonant converter with embedded filters for high power density DCX of solid-state transformer

S Okutani, PY Huang, R Nishiyama, Y Kado - IEEE Access, 2022 - ieeexplore.ieee.org
A series resonant converter (SRC) operating as a DC transformer (DCX) is a candidate for
the isolated bidirectional DC/DC converters of solid-state transformers (SSTs). However, the …

A Homogenized FEM Data-Driven Model for Calculating Leakage Inductance of High-Frequency Transformer with Litz-Wire Winding

T Chen, Z Zhao, Z Shen, L Ming… - IEEE Journal of …, 2024 - ieeexplore.ieee.org
Accurate evaluation of the leakage inductance of high-frequency transformers is significant
for improving the operating model and power transmission efficiency of isolated dc-dc …

Study on low-frequency ripple voltage suppression for cascaded three-phase solid-state-transformer

X Luo, M Chen, C Hu - … on Power Electronics and ECCE Asia …, 2023 - ieeexplore.ieee.org
Cascaded solid-state-transformer (SST) suffers from double-line-frequency ripple power
because of its phase-separated structure, which causes ripple voltage in DC bus capacitor …

Current stress optimization of dual active bridge converter in two-stage single-phase inverter system with second harmonic current shaping

F Xiong, J Li, D Yan, X Chen - IEEE Transactions on Power …, 2021 - ieeexplore.ieee.org
With consideration of double line-frequency instantaneous power in two-stage single-phase
inverter system, a second harmonic current shaping (SHCS) method is proposed in this …