Superconducting liquid for energy storage in box-type transformer

What are superconductor materials?

Thus, the number of publications focusing on this topic keeps increasing with the rise of projects and funding. Superconductor materials are being envisaged for Superconducting Magnetic Energy Storage (SMES). It is among the most important energy storage systems particularly used in applications allowing to give stability to the electrical grids.

What is superconducting magnetic energy storage (SMES)?

The perpetual current loop to store energy, mentioned in the previous paragraph, is known as the superconducting magnetic energy storage (SMES). Similarly, a superconducting power transmission line would reduce resistive losses.

What is a superconductor configuration?

A configuration for which the magnetic field inside the system is at all points as close as possible to its maximum value is then required. This value will be determined by the currents circulating in the superconducting materials. Afterwards, the amount of superconductor to be used should be minimized as much as possible.

How to design a superconducting system?

The first step is to design a system so that the volume density of stored energy is maximum. A configuration for which the magnetic field inside the system is at all points as close as possible to its maximum value is then required. This value will be determined by the currents circulating in the superconducting materials.

How does a superconducting coil store energy?

This system is among the most important technology that can store energy through the flowing a current in a superconducting coil without resistive losses. The energy is then stored in act direct current (DC) electricity form which is a source of a DC magnetic field.

When were high T C superconducting materials discovered?

Discovery of High T C superconducting materials (HTS) in the late 80's (LaBa 2 CuO 4-x at 30°K, YBa 2 Cu 3 O x at 92°K) and early 90's (Hg 2 Ba 2 Ca 2 Cu 3 O x at 130°K) sparked off several government funded programs in Europe, Japan and the United States. [4-7]