Fei Wang

TL;DR: In this paper, a high-voltage solid-state transformer (SST) lab prototype is presented as the active grid interface in smart grid architecture, where the designs of the key components of the system, including both power stage and controller platform, are presented.

TL;DR: In this article, the authors present a systematical technology review essential for the development of solid state transformer in the distribution system, especially focusing on the following four areas: high voltage and high frequency power devices, high power and high power transformers, AC/AC converter topologies, and applications of solid-state transformer in distribution system.

TL;DR: In this paper, a systematic evaluation approach of three-phase pulsewidth-modulated (PWM) AC-AC converter topologies for high-density applications is presented, where all major components and subsystems in a converter are considered and the interdependence of all the constraints and design parameters is systematically studied.

TL;DR: In this article, the authors investigated a permanent-magnet wind generator with a full power voltage-source converter in weak-grid mode, where the DC-link voltage needs to be controlled from the generator side instead of the grid side.

TL;DR: The proposed wind energy systems using solid-state transformer (SST) can effectively suppress the voltage fluctuation caused by the transient nature of wind energy without additional reactive power compensator and, as such, may enable the large penetration of wind farm (WF) into the power grid.