Title :
Basic design considerations for a medium-size superconducting magnetic energy storage system (SMES)
Author :
Nick, W. ; Prescher, K.
Author_Institution :
Siemens AG, Mulheim, Germany
fDate :
7/1/1996 12:00:00 AM
Abstract :
In a feasibility study, a 2 MWh magnet system suitable for electric utility application (primary control reserve) is analyzed. Basic choices for a realistic SMES design are considered taking into account practical industrial feasibility. Compared to a large solenoid, advantages are seen for a modular, toroidal configuration with circular coils. To achieve a robust coil pack, internal cooling with supercritical helium for an impregnated winding is selected. System parameters are derived from a cost optimization approach. Possible conductor concepts, a thin-walled coil casing, and a corresponding refrigeration system based on a cryogenic loss estimate are presented
Keywords :
design engineering; electricity supply industry; power system control; superconducting coils; superconducting magnet energy storage; superconducting magnets; 2 MWh; SMES; application; circular superconducting coils; cost optimization; cryogenic refrigeration system; design considerations; electric utility; industrial feasibility; internal cooling; modular toroidal configuration; primary control reserve; superconducting magnetic energy storage system; supercritical helium; thin-walled coil casing; Control system analysis; Control systems; Electrical equipment industry; Magnetic analysis; Power industry; Samarium; Superconducting coils; Superconducting magnetic energy storage; Superconducting magnets; Toroidal magnetic fields;
Journal_Title :
Magnetics, IEEE Transactions on
