Superconduction energy storage system (SMES) is an electricity facility that can directly store electromagnetic can directly store the electromagnetic can be stored by the superconducting coil. It uses the low -loss and rapid response of superconducting magnets to store energy. It is a modern power electron -type variable and power system interface that forms both electrical energy (rectification method) ) Quickly responding device. It uses the resistance of the superconductors to zero, not only to store electrical energy without loss of land in the superconductor inductor coil, but also achieves many purposes such as large -capacity storage power, improving power supply quality, and improving system capacity. Quickly exchange with external systems and powerless power to improve the stability of the entire power system and improve the quality of power supply. It is generally composed of ultra -wiring coils, low temperature containers, refrigeration devices, flow device and measurement and control system components.

The application of superconducting energy in the power system is first proposed as a balanced power load device. In 1969, Ferrier first conceived a large superconducting magnetic energy storage device to balance the daily load changes in the French power system and regulate the power system peak valley. Due to the rapid exchanges with the power grid and the development of power and electronic technology, superconducting energy energy can independently perform the four -elephant limits and power -free power exchange at the same time. To suppress the low -frequency oscillation phenomenon that occurs on the long -distance AC transmission system, it can be used to reduce or even eliminate the low -frequency power oscillation of the grid to improve the voltage and frequency characteristics of the grid. sex.