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Patent Searching and Data


Title:
EXCITER FOR GENERATOR
Document Type and Number:
WIPO Patent Application WO/1999/053606
Kind Code:
A1
Abstract:
An exciter which has an AC/AC converter (29) connected to the output line (2) of an AC generator (1), having a voltage holding function, and comprising an AC/DC converter (13), a capacitor (14) connected to the output of the converter (13), and a DC/AC converter (15) connected to the capacitor (14), and which excites the exciting winding (12) of the generator (1) by means of an AC/DC converter (10) which is connected to the output side of the AC/AC converter (29) having the voltage level holding function and can control current. Even when the voltage at the output line (2) drops due to the abnormality of a system (4), the exciting current of the generator (1) can be maintained at a sufficiently high value, because the energy accumulated in the capacitor (14) is discharged and the voltage can be maintained for some time.

Inventors:
EGUCHI TAKENORI (JP)
SHIMOMURA MASARU (JP)
Application Number:
PCT/JP1998/001645
Publication Date:
October 21, 1999
Filing Date:
April 09, 1998
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
EGUCHI TAKENORI (JP)
SHIMOMURA MASARU (JP)
International Classes:
H02P9/30; (IPC1-7): H02P9/30
Foreign References:
JPS54120815A1979-09-19
JPS54140111A1979-10-31
JPS5731099U1982-02-18
Other References:
See also references of EP 0989667A4
Attorney, Agent or Firm:
Miyata, Kaneo (2-3 Marunouchi 2-chom, Chiyoda-ku Tokyo, JP)
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