Transient characteristics of parallel running of the 20 kVA superconducting synchronous generator and a conventional one

Author

NItta, Tanzo ; Okada, Takao

Author_Institution

Dept. of Electr. Eng., Kyoto Univ., Japan

Volume

25

Issue

2

fYear

1989

fDate

3/1/1989 12:00:00 AM

Firstpage

1775

Lastpage

1778

Abstract

A description is given of electrical transient characteristics of the parallel operation of a 20-kVA superconducting synchronous generator and a conventional one. In the experimental power system, the superconducting generator is connected through reactors (artificial transmission lines) to a regional power system (infinite bus), and the conventional generator (20 kVA) is connected to the terminal of the superconducting generator. Synchronous closing tests, loss of synchronism tests, and disconnecting and reclosing tests were performed. It was found that by installing a superconducting generator (SCG) in power systems, voltage stability and power system stability can be improved in transient states as well as in steady states, and the variation of armature current of SCG during a transient period is much larger than that of the conventional one. Simulation results in good agreement with the experimental results were also obtained

Keywords

digital simulation; power system analysis computing; stability; superconducting machines; synchronous generators; transients; 20 kVA; artificial transmission lines; connected through reactors; conventional generator; electrical transient characteristics; experimental power system; experimental results; infinite bus; loss of synchronism tests; parallel generators; parallel running; power system stability; reclosing tests; regional power system; simulation results; superconducting synchronous generator; synchronous closing tests; system stability improvement; transient stability; variation of armature current; voltage stability; Inductors; Performance evaluation; Power generation; Power system simulation; Power system stability; Power system transients; Power transmission lines; Superconducting transmission lines; Synchronous generators; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92645

Filename

92645