Single-Stage AC SST Development, Design and Implementation, FREEDM Enhancement Project
The research is conducted in the Power Electronics Research Laboratory at North Carolina State University (NCSU), under the guidance of Prof. Stephen Y.B. Lu.
The goal of research conducted in the Power Electronics Research Laboratory at NC State is to develop a single stage solid state transformer (SST) with 99% efficiency for a 20kW/480V input-output module, as well as explore the feasibility and scalability of the technology at up to 10MVA and 35kVac. A novel control method providing soft-switching operation across the entire operating range is being developed to achieve this task. By improving the power density and reliability while maintaining high efficiency, the research strives to unlock greater potential in this field.
Sponsor
Meta Platforms Inc. (formerly Facebook Technologies, LLC (formerly Oculus VR, LLC))
The grant—running from July 1, 2022 to June 30, 2025—is for a total of $513,554.
Principle Investigators
Iqbal Husain
Wensong Yu
Srdjan Miodrag Lukic
More Details
Research in single stage solid state transformer (SST) development. A challenging aspect of SST development is maintaining high efficiency while improving the power density and reliability. The project goal is to achieve 99% efficiency for a 20kW single-stage AC-SST at module voltage ratings of 480V input and 480V output and to explore the feasibility and scalability for such technology at 35kVac and 10MVA levels. The goal will be achieved with simplified modular topology and a novel control method that will provide soft-switching operation over the entire operating range.