Engineering PapersSearch

DOE OSTI · 2999127

AC to AC Solid State Transformer with Bidirectional Switches

Abstract

This report details the work of the 3-year project for the AC-to-AC Solid State Transformer with Bidirectional Switches project devoted to developing and demonstrated a Type I Solid State Transformer. This report details the design, fabrication, and evaluation of both three-phase and single-phase versions of this solid state transformer operating as a single module, modules in parallel, and modules in cascade. Additionally, this report details the fabrication and evaluation of custom Silicon Carbide bidirectional switches to enable this topology with a comparison between monolithically integrated bidirectional switches as well as co-packaged back-to-back unidirectional devices. Finally, results for custom-fabricated Fe 4 N/ferrite laminated toroidal cores for high frequency transformers are present.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Flicker, Jack David [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000212232154), Mueller, Jacob Andreas [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000161730283), Garcia-Rodriguez, Luciano Andres [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)], Palacios, Felipe [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0009000411780273), Cardoza, Alvaro Daniel [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0009000106292628), Dow, Andrew R. R. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)], Manglicmot, Lea Daigo [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)], Monson, Todd Charles [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000297827084), Floyd, Richard Speight [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000210739277), Binder, Andrew [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000266492816). 2025-10-01. AC to AC Solid State Transformer with Bidirectional Switches. https://doi.org/10.2172/2999127

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

Large language models for transportation research: Methodologies, state of the art, and future opportunities

The rapid rise of large language models (LLMs) is transforming transportation research, with significant advancements emerging between 2023 and 2025, a period marked by the inception and swift growth of adopting and adapting LLMs for various transportation applications. Despite these significant advancements, however, a systematic review and synthesis of the existing literature remains lacking. This paper aims to fill this gap by providing a comprehensive review of the methodologies and applications of LLMs in transportation. We explore key applications, including autonomous driving, travel behavior prediction, and general transportation-related queries, alongside LLM methodologies such as zero- or few-shot learning, prompt engineering, and fine-tuning. From the review, critical research gaps are identified. From the methodological perspective, many of the research limitations can be addressed by integrating LLMs with existing tools and refining LLM architectures. From the application perspective, research opportunities for LLMs to address various transportation challenges are also explored. By synthesizing these findings, this review not only presents the state-of-the-art LLM adoption and adaptation in transportation, but also proposes future research directions as well as insights and recommendations for policymakers and practitioners, paving the way for greater LLM-driven research innovations in transportation in the future.

42 ENGINEERING