DocumentCode :
1068833
Title :
Effective application of superconducting magnetic energy storage (SMES) to load leveling for high speed transportation system
Author :
Suzuki, Satoshi ; Baba, Jumpei ; Shutoh, Katsuhiko ; Masada, Eisuke
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ. of Sci., Noda, Japan
Volume :
14
Issue :
2
fYear :
2004
fDate :
6/1/2004 12:00:00 AM
Firstpage :
713
Lastpage :
716
Abstract :
The consecutive pulse power demand of the high speed transportation systems like Shinkansen, gives deteriorative influences to the power supply system and increases its operational costs. To cope with this problem, it has been studied to install the superconducting magnetic energy storage system (SMES) in railway substations. However, the scale of installation becomes too large because of low space factor of SMES, and hampers its realization. Then, it is considered to use SMES only for suppression of the high frequency component of load fluctuation, and to combine with a large capacity battery storage (BEMS), which can not follow fast fluctuation and covers its low frequency component. A novel control scheme of this combined energy storage system is proposed. The fluctuation of power demand caused by high speed train operations in a railway substation is measured separately in the frequency range and used to regulate both SMES and BEMS to suppress fluctuation. With simulation studies based on the load model of high speed train operation at a certain substation, this hybrid approach and its control scheme are verified effective. The system configuration is compact enough to be installed at a substation.
Keywords :
load flow control; load management; power supply quality; power system control; railway electrification; rapid transit systems; superconducting magnet energy storage; BEMS; SMES system; Shinkansen; capacity battery storage; combined energy storage system; consecutive pulse power demand; control scheme; flow battery; frequency component; high speed train operations; high speed transportation system; hybrid energy storage system; load fluctuation suppression; load leveling; power fluctuation; power supply system; railway substations; superconducting magnetic energy storage; system configuration; Batteries; Costs; Fluctuations; Frequency; Power demand; Pulsed power supplies; Rail transportation; Samarium; Substations; Superconducting magnetic energy storage; Flow battery; SMES; high speed transportation; hybrid energy storage system; load leveling;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2004.830082
Filename :
1324892
Link To Document :
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