Single Stage SST Development, FREEDM Core Project
The goal of this research project is to develop a single-stage solid-state transformer (SST) with high efficiency, power density, and reliability. Using a simplified modular topology and a novel control method, the project aims to achieve 99% efficiency for a 20kW AC-SST with 480V input and output voltages. Additionally, the feasibility and scalability of the technology at 35kVac and 10MVA levels will be explored. In conclusion, this project seeks to create an SST with high efficiency, power density, and reliability.
Sponsor
NCSU Future Renewable Electric Energy Delivery and Management Systems Center (FREEDM)
The grant—running from June 1, 2022 to June 30, 2023—is for a total of $50,000.
Principle Investigators
Wensong Yu
Iqbal Husain
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.