Schematic diagram of high temperature superconducting energy storage battery

Can superconducting magnetic energy storage (SMES) be used in power sector?

In this paper, an effort is given to review the developments of SC coil and the design of power electronic converters for superconducting magnetic energy storage (SMES) applied to power sector. Also the required capacities of SMES devices to mitigate the stability of power grid are collected from different simulation studies.

What is a medium temperature superconductor (MTS)?

As the critical temperature of MgB2 is 20 K (in between HTS, 77–90 K and LTS, 4.2 K) it can be treated as Medium Temperature Superconductor (MTS). After selecting the HTS tape, the arrangement of coil should be selected depending on the rating of the proposed SMES. The most common arrangements of superconducting coil are solenoid and toroid.

What is a superconducting system (SMES)?

A SMES operating as a FACT was the first superconducting application operating in a grid. In the US, the Bonneville Power Authority used a 30 MJ SMES in the 1980s to damp the low-frequency power oscillations. This SMES operated in real grid conditions during about one year, with over 1200 hours of energy transfers.

What is superconducting magnet?

Superconducting Magnet while applied as an Energy Storage System (ESS) shows dynamic and efficient characteristic in rapid bidirectional transfer of electrical power with grid. The diverse applications of ESS need a range of superconducting coil capacities.

What is a superconducting coil?

Superconducting coil is the heart of SMES. Electrically it is a pure inductor (no internal resistance) and DC current can flow through it without any ohmic (I2 R) loss. As a result, superconducting coil can persist current or energy (1/2 LI 2) for years with energy density as high as 100 MJ/m3.

Why is high energy storage capacity of SMEs required?

High energy storage capacity of SMES is required for lower initial energy of fuel cell . Two types of energy storage are connected to the WPGS integrated 33 bus system. One is SMES connected at the terminal of WPGS to minimize its output power fluctuation and the other is plug in hybrid electric vehicles used for load leveling purpose.