Operation of the 30 MJ superconducting magnetic energy storage system in the Bonneville Power Administration electrical grid

Author

Rogers, J.D. ; Boenig, H.J. ; Schermer, R.I. ; Hauer, J.F.

Author_Institution

Universidad de Buenos Aires, Aires, Argentina

Volume

21

Issue

2

fYear

1985

fDate

3/1/1985 12:00:00 AM

Firstpage

752

Lastpage

755

Abstract

The 30 MJ superconducting magnetic energy storage (SMES) system was installed in the Bonneville Power Administration (BPA) Tacoma Substation in 1982-83. Operation of the unit since that time has been for over 1200 hours. Specific tests to explore the SMES system´s thermal and electrical characteristics and the control functions were conducted. The coil heat load with current modulation was determined. A converter with two 6-pulse bridges interfaces the superconducting coil to the power bus. Equal bridge voltage amplitude and constant reactive power modes of operation of the system were run with computer control of the SCR bridge firing angles. Coil energy dump tests were performed. Electrical grid system response to SMES modulation was observed, and full power SMES modulation was undertaken.

Keywords

Superconducting magnets, energy storage; Bridge circuits; Control systems; Electric variables; Reactive power control; Samarium; Substations; Superconducting coils; Superconducting magnetic energy storage; System testing; Thermal conductivity;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1985.1063770

Filename

1063770