Abstract
For several decades researches and developments on superconducting magnetic energy storage (SMES) system have been done for efficient electric power management. Korea Electrotechnology Research Institute (KERI) have developed a 1-MJ 300-kVA SMES System for improving power quality in sensitive electric loads. It consists of an IGBT (Insulated Gate Bipolar Transistor) based power conversion module, NbTi mixed matrix conductor superconducting magnet and a cryostat with HTS current leads. The authors developed the code for design of a SMES magnet, which could find the parameters of the SMES magnet having minimum amount of superconductors for the same stored energy, and designed the 1-MJ SMES magnet by using it. And they have designed and fabricated cryostat with kA class HTS current leads for a 1-MJ SMES System. This paper describes the design, fabrication and experimental results for a 1-MJ SMES System.
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