High-frequency transformer design with medium-voltage insulation for resonant converter in solid-state transformer

Z Li, E Hsieh, Q Li, FC Lee - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
A solid-state transformer can directly convert medium voltage to low voltage (eg, 400 V) with
minimized power-conversion stages. The transformer in the dc–dc module not only provides …

Characterization of partial discharges in high-frequency transformer under PWM pulses

Z Guo, AQ Huang, RE Hebner… - … on Power Electronics, 2022 - ieeexplore.ieee.org
Partial discharge (PD) is a phenomenon often occurring in insulation system defects
(cavities), which can significantly affect life and reliability. While broad knowledge on PD …

A novel high-voltage power supply with MHz WPT techniques: Achieving high-efficiency, high-isolation, and high-power-density

S Li, X Yu, Y Yuan, S Lu, T Li - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
This article presents a wireless high-voltage power supply (WHPS) that leverages MHz
wireless power transfer (WPT) technology with the double-sided LCC compensation …

Synergistic effects of Micro-hBN and core-shell Nano-TiO2@ SiO2 on thermal and electrical properties of epoxy at high frequencies and temperatures

M Awais, X Chen, Z Hong, Q Wang, Y Shi… - … Science and Technology, 2022 - Elsevier
Epoxy (EP) resin insulations are widely used in electronic devices and power systems. They
are gradually finding their way as winding insulation material for medium frequency …

Hardware design of a 13.8-kv/3-mva pv plus storage solid-state transformer (pvs-sst)

W Xu, Z Guo, A Vetrivelan, R Yu… - IEEE Journal of …, 2021 - ieeexplore.ieee.org
Photovoltaic (PV) power generation plant with integrated battery energy storage (BES) is
becoming increasingly attractive and necessary as the PV penetration increases. Traditional …

The Effects of PWM With High dv/dt on Partial Discharge and Lifetime of Medium-Frequency Transformer for Medium-Voltage (MV) Solid State Transformer …

R Agarwal, H Li, Z Guo… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The medium-frequency (MF) transformer in a phase-shift modulated dc solid state
transformer (SST) is prone to partial discharge (PD) that impacts the system reliability and …

A novel high insulation 100 kW medium frequency transformer

Z Guo, S Rajendran, J Tangudu… - … on Power Electronics, 2022 - ieeexplore.ieee.org
High voltage insulation and thermal management are the two major challenges in a high-
power medium frequency transformer (MFT) design. This letter proposes novel insulation …

A medium-voltage transformer with integrated leakage inductance for 10 kV SiC-based dual-active-bridge converter

Z Gao, H Li, F Wang - 2022 IEEE 9th Workshop on Wide …, 2022 - ieeexplore.ieee.org
Medium-voltage (MV) dual-active-bridge (DAB) converters have become an emerging
technology thanks to high-voltage silicon carbide (SiC) devices and nanocrystalline …

Analysis of the performance limits of 166 kW/7 kV air-and magnetic-core medium-voltage medium-frequency transformers for 1: 1-DCX applications

P Czyz, T Guillod, D Zhang, F Krismer… - IEEE Journal of …, 2021 - ieeexplore.ieee.org
Solid-state transformers (SSTs) are employing compact high-power medium-voltage (MV)
medium-frequency transformers (MFTs) and enable the power transfer between galvanically …

Two types of common-mode voltage suppression in medium voltage motor speed regulation system based on solid state transformer with dual DC bus

J Teng, X Sun, Y Zhang, H Fu, X Liu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Two types of common mode voltage (CMV) exist in medium-voltage motor drive system
based on modular multilevel converter (MMC) type topology, that are, arms CMV (ACMV) …