Feasible utility scale Superconducting Magnetic Energy Storage system
Conference
·
OSTI ID:6474773
This paper presents the latest design features and estimated costs of a 5000 MWh/1000 MW Superconducting Magnetic Energy Storage (SMES) plant. SMES is proposed as a commercially viable technology for electric utility load leveling. The primary advantage of SMES over other electrical energy storage technologies is its high net roundtrip efficiency. Other features include rapid availability and low maintenance and operating costs. Economic comparisons are made with other energy storage options and with gas turbines. In a diurnal load leveling application, a superconducting coil can be charged from the utility grid during off-peak hours. The ac grid is connected to the dc magnetic coil through a power conversion system that includes an inverter/rectifier. Once charged, the superconducting coil conducts current, which supports an electromagnetic field, with virtually no losses. During hours of peak load, the stored energy is discharged to the grid by reversing the charging process. The principle of operation of a SMES unit is shown in Fig. 1. For operation in the superconducting mode, the coil is maintained at extremely low temperature by immersion in a bath of liquid helium.
- Research Organization:
- Bechtel, Inc., San Francisco, CA (USA); General Dynamics Corp., San Diego, CA (USA); Los Alamos National Lab., NM (USA); GA Technologies, Inc., San Diego, CA (USA); Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6474773
- Report Number(s):
- LA-UR-85-3342; CONF-860210-1; ON: DE86000812
- Country of Publication:
- United States
- Language:
- English
Similar Records
A feasible utility scale superconducting magnetic energy storage plant
Design and cost of a utility scale superconducting magnetic energy storage plant
Coil protection for a utility scale superconducting magnetic energy storage plant
Journal Article
·
Sun Nov 30 23:00:00 EST 1986
· IEEE Trans. Power Electronics; (United States)
·
OSTI ID:7227200
Design and cost of a utility scale superconducting magnetic energy storage plant
Conference
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:5111877
Coil protection for a utility scale superconducting magnetic energy storage plant
Conference
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:5113288