Year

2013

Degree Name

Master of Science

Department

Institute for Superconducting and Electronic Materials

Abstract

One of the most promising applications of superconductors is in Superconducting Magnetic Energy Storage (SMES) systems, which are becoming the enabling engines for improving the capacity, efficiency, and reliability of electrical systems. The use of superconductivity reduces the loss of energy and makes magnetic energy storage systems more powerful. Superconducting magnetic energy storage systems store energy in a superconducting coil in the form of a magnetic field. The magnetic field created by the flow a direct current (DC) through the coil. Superconducting magnetic energy storage systems have many advantages compared to other energy storage systems: high cyclic efficiency, fast response time, deep discharge and recharge ability, and a good balance between power density and energy density. Based on these advantages, superconducting magnetic energy systems will play an indispensable role in improving power qualities integration renewable energy sources and energizing transportation systems. This thesis investigates the application of superconducting pancake coils that are wound using second-generation (2G) HTS materials in power system and provides an analysis of superconducting magnetic energy storage system for potential development and implementation in a range of applications. Specifically, it designs and calculates the energy storage in an SMES system using HTS thin films.

Second-generation, high temperature superconducting coils have drawn great attention in recent years, owing to the highly developed fabrication technology for 2G, HTS, and coated conductors. Their potential operation at relatively high temperature makes them good candidates for power applications.

With the growing availability of “YBCO-based” second-generation high-temperature superconductor (2G HTS), the fabrication technologies for 2G HTS wires have been progressing dramatically, with remarkable advancements in the critical current, wire length, magnetic-field performance, and production throughput and cost.

This study will highlight recent developments in the fabrication of 2G HTS wire and prototype devices using YBCO-based wire with high field critical currents, as well as related magnet technology developments, to design a small closed system of superconducting HTS thin film solenoid coil, through selection of the optimization parameters for this coil to store large amounts of magnetic energy, and then to link this system with one of renewable energy sources.

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