Title :
3 MJ/750 kVA SMES System for Improving Power Quality
Author :
Kim, H.J. ; Seong, K.C. ; Cho, J.W. ; Bae, J.H. ; Sim, K.D. ; Kim, S. ; Lee, E.Y. ; Ryu, K. ; Kim, S.H.
Author_Institution :
Korea Electrotechnol. Res. Inst., Changwon
fDate :
6/1/2006 12:00:00 AM
Abstract :
The purpose of this study is to develop a superconducting magnet energy storage system (SMES), which protects sensitive loads on the power system, when an interruption or voltage sag occurs. Industries have many sensitive machines, and keeping the power in a good condition is very important for nonmilitary machines also. Korea Electrotechnology Research Institute (KERI) has developed a 3 MJ/750 kVA SMES system to improve power quality in sensitive electric loads. It consists of an IGBT based power converter, NbTi mixed matrix Rutherford cable superconducting magnet, and a cryostat with HTS current leads. The operating current of the 3 MJ SMES magnet was 1000 A. The SMES system is tested under short time power interrupt to verify the feasibility of the SMES system as a 750 kVA power converter
Keywords :
cryostats; high-temperature superconductors; insulated gate bipolar transistors; power convertors; power supply quality; power system protection; superconducting magnet energy storage; superconducting magnets; 1000 A; 3 MJ; 750 kVA; HTS current lead; IGBT based power converter; Korea Electrotechnology Research Institute; SMES testing; cryostat; mixed matrix Rutherford cable; power quality; power system; sensitive load protection; superconducting magnet; superconducting magnet energy storage system; voltage sag; Energy storage; Insulated gate bipolar transistors; Matrix converters; Niobium compounds; Power quality; Power system protection; Samarium; Superconducting magnets; Titanium compounds; Voltage fluctuations; Cryostat; HTS current leads; IGBT; Rutherford cable; SMES; power converter;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2006.871329
