High-Frequency Transformer Design for Solid-State Transformers in Electric Power Distribution Systems

<p>The objective of this thesis is to present a high- or medium-frequency transformer design methodology for Solid-State Transformer (SST) applications. SSTs have been proposed as a replacement of the traditional 50/60 Hz transformer in applications demanding high-power density. Moreover, due to the high penetration of distributed generation, DC grids, energy storage systems, and sensitive loads, SSTs have been considered as an enabling technology for envisioned future energy systems. These applications demand additional functionalities that may not be achieved with traditional transformers. For example, active power flow control, harmonic suppression, voltage regulation, voltage sag compensation, and reduced size and volume.</p> <p>In this thesis, SST topologies are evaluated in order to determine their impact upon the transformer design. In addition, design considerations for core and wire selections, isolation requirements, and different transformer structures are investigated. As a result, the proposed transformer design methodology accounts for leakage inductance requirements for optimal power transfer, high-frequency effects in the transformer core and windings, and a flux density optimization to maximize transformer’s efficiency. The design procedure has been implemented in MATLAB® as an interactive tool for designing high-frequency transformers.</p>

Name thesis:degree_name

Master of Science in Electrical Engineering (MSEE)

Level thesis:degree_level

Thesis

Year dc:date.available

2015

Author dc:creator

• Garcia Montoya, Roderick Javier

Advisor dc:contributor.advisor

• Balda, Juan C.

Contributors dc:contributor

• Ang, Simon S.
• McCann, Roy A.

• Applied sciences
• Dc-dc converter
• High frequency transformer
• Solid-state transformer
• Transformer design
• Electrical and Electronics
• Power and Energy

Repository record dc:identifier

https://scholarworks.uark.edu/etd/1382

OAI identifier oai:identifier

oai:scholarworks.uark.edu:etd-2381