Electrical Insulation for High Temperature Superconducting Power Cables for Electric Transport Systems

The electrical power industry faces a never-ending and increasing demand for innovative designs and ideas to provide electrical power with reduced size, a clean environment, and resiliency. Electric transport systems are some of the latest innovative techniques being researched and developed. The high power demands of the power systems of transport platforms need high power density, energy efficiency, and resiliency. High-temperature superconducting (HTS) power cables are a viable solution to meet the ambitious goals. HTS power cables offer a current density ten times greater than conventional ones. HTS power cables can accomplish high power transmission with lower voltage values than traditional counterparts. The high current density reduces the size and weight of the power cables and other electrical components within the power system. HTS devices require a cryogenic environment to regulate the temperature. An electrical insulation system suitable for the appropriate voltage and cryogenic operating temperature is also needed. Therefore, it is essential to understand the dielectric properties of electrical insulation in a realistic cryogenic environment. The research performed for this thesis focused on the dielectric properties of cryogenic epoxies as electric insulation material for HTS power cables for electrical transport systems such as electric ships and aircraft. This thesis focused on three areas: a study to understand the various materials used for electrical insulation for power cables, characterization of the dielectric properties of common epoxies suitable for cryogenic temperatures, assessment of their ability to serve as electrical insulation for HTS cables, and a test cable fabricated implementing the epoxies as electrical insulation with liquid nitrogen (LN2), gaseous helium (GHe), and GHe gas mixtures.

Grantor dc:publisher

Florida State University

Year dc:date

2023

Contributors dc:contributor

• Bruce, Jackson (author)
• Pamidi, Sastry V. (professor directing thesis)
• Cheetham, Peter (committee member)
• Bernadin, Shonda (committee member)
• Florida State University (degree granting institution)
• FAMU-FSU College of Engineering (degree granting college)
• Department of Electrical and Computer Engineering (degree granting department)

• Electrical engineering

Language dc:language

English

Identifier

fsu:927847
iid: Bruce_fsu_0071N_18162

OAI identifier oai:identifier

oai:diginole.lib.fsu.edu:fsu_927847