NDLI: Feasibility Study on Large Scale SMES for Daily Load Leveling Using Force-Balanced Helical Coils

Content Provider	IEEE Xplore Digital Library
Author	Nomura, S. Chikaraichi, H. Tsutsui, H. Shimada, R.
Copyright Year	2002
Abstract	The authors examine the design options of a 360-MWh superconducting magnetic energy storage (SMES) for daily load leveling using YBCO coated conductors. The 360-MWh SMES is composed of 4000 superconducting coils with the force-balanced coil (FBC) helical windings. Because the FBC can significantly reduce the required mass of the structure, the induced electromagnetic forces are mainly supported by the tensile stress in the Hastelloy substrate of the YBCO conductors. By the effect of the FBC windings, 12 kJ/kg of the higher stored energy density per unit weight of the coil can be achieved. From the thyristor converter losses and the cooling power requirements, the energy cycle efficiency of the 360-MWh SMES is at least 70% with the cooling temperature of 20 K. Especially, if the cooling temperature is selected as 50 K, the energy cycle efficiency can be expected to be at least 79%. This efficiency is higher than that of pumped hydro storage. Therefore, large-scale SMES is one of the feasible options for daily load leveling by selecting an optimal cooling temperature.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	5700904
Ending Page	5700904
Page Count	1
File Size	789148
File Format	PDF
ISSN	10518223
Volume Number	23
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cooling Yttrium barium copper oxide Conductors Superconducting magnetic energy storage Heat transfer Superconducting coils YBCO coated conductors Daily load leveling energy cycle efficiency helical coil superconducting magnetic energy storage (SMES)
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Conceptual Design of HTS Coil for SMES Using YBCO Coated Conductor

Quench Detection and Protection of Cryocooler-Cooled YBCO Pancake Coil for SMES

Stress Tolerance and Fracture Mechanism of Solder Joint of YBCO Coated Conductors

Comparison of Optimal Configuration of SMES Magnet Wound With $hbox{MgB}_{2}$ and YBCO Conductors

Evaluation of Conduction Cooling Effect of Cryocooler-Cooled HTS Coils for SMES Application

Design of YBCO Insert Coil for a Cryogen-Free 22 T Superconducting Magnet

Quench Behavior and Protection in Cryocooler-Cooled YBCO Pancake Coil for SMES

Fabrication Test of YBCO Coil and Multi-Tape Conductor

A Criterion for Determining Stabilizer Thickness of YBCO Coated Conductors Based on Coil Protection

Feasibility Study on Large Scale SMES for Daily Load Leveling Using Force-Balanced Helical Coils

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