What is superconducting magnetic energy storage (SMES)?

1. Introduction Superconducting Magnetic Energy Storage (SMES) is a promising high power storage technology, especially in the context of recent advancements in superconductor manufacturing .

What are 2G Superconducting materials?

Second generation (2G) superconducting materials are cuprates of rare earth elements, ReBaCuO (Re = Y, Sm, Gd). Compared to 1G HTS, second generation materials can sustain higher critical currents at similar external magnetic fields, thus improving the performance of SMES units.

How does a SMEs unit work?

A SMES unit stores energy in the magnetic field created by a current circulating in a superconducting coil. At temperatures below the critical transition value, , the electrical resistance of the superconducting tape drops to zero, enabling the magnet to carry high currents without ohmic losses.

Is a 30-k/4-kj HTS magnet cryocooled with solid nitrogen?

Design of a 30-K/4-kJ HTS magnet cryocooled with solid nitrogen IEEE Trans Appl Supercond, 28 ( 4) ( 2018), p. 4603606, 10.1109/TASC.2018.2814960 Design and evaluation of a mini-size SMES magnet for hybrid energy storage application in a kW-class dynamic voltage restorer

What is the maximum current required for a superconducting tape?

With a power rating of 100 kW and a DC link capacitor voltage of 750 V, the maximum operating current must be at least 421.63 A. With a safety factor of , a critical current of at least 527 A is required. 2.2. Superconducting tape properties

How to design a 2G HTS SMEs?

This paper outlines a methodology of designing a 2G HTS SMES, using Yttrium-Barium-Copper-Oxide (YBCO) tapes operating at 22 K. The target storage capacity is set at 1 MJ, with a maximum output power of 100 kW. The magnet consists of a stack of double pancake coils designed for maximum storage capacity, using the minimum tape length.