Title:
保護制御計測システム
Document Type and Number:
Japanese Patent JP4912994
Kind Code:
B2
Abstract:
This invention provides a protection control measurement system, with excellent economy and maintainability. In the protection control measurement terminal 1, electric quantity acquisition and transmitter 14-1 determines synchro-phasor quantities from electric quantity data and transmits the synchro-phasor quantities to arrival time-guaranteed transmitter 15-1. The arrival time-guaranteed transmitter 15-1 transmits in real- time the synchro-phasor quantities to the parent station device 3. Setting value transmitter 14-2 transmits setting value data to the message transmitter 15-2, which performs message transmission to the parent station device 3 over the communication network 2. In the parent station device 3, electric quantity arithmetic processor 32-1 calculates electric quantities as close as possible to true values by multiplying received synchro-phasor quantities by setting value data. The protection control measurement arithmetic processor 32-2 performs arithmetic operations for accident judgment for protection control measurement terminals 1 from the magnitudes of electric quantities and voltage phase differences.
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Inventors:
Hironori Sakashita
Katsuhiko Sekiguchi
Yoshinori Takei
Katsuhiko Sekiguchi
Yoshinori Takei
Application Number:
JP2007238561A
Publication Date:
April 11, 2012
Filing Date:
September 13, 2007
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04M11/00; H02H3/00; H02J13/00
Domestic Patent References:
| JP2003052135A | ||||
| JP2001045645A | ||||
| JP11041288A | ||||
| JP2003274548A | ||||
| JP63173973A |
Attorney, Agent or Firm:
Kiuchi Mitsuharu