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Title:
POWER DISTRIBUTION SYSTEM MANAGEMENT DEVICE, POWER DISTRIBUTION SYSTEM MANAGEMENT METHOD, AND POWER DISTRIBUTION SYSTEM MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/034004
Kind Code:
A1
Abstract:
Provided is a power distribution system management device in which an accident section estimation unit estimates a short-circuit accident section from a comparison result obtained by comparing a threshold value with a harmonic current amplitude value, thereby enabling to estimate the short-circuit accident section without using a timed sequential method.　A power distribution system management device (1) comprises: an analysis unit (131) that detects harmonic currents by a plurality of measuring instruments (3) and calculates each of the amplitude values of the harmonic currents on the basis of the detected harmonic currents, said measuring instruments (3) being installed so as to section a power distribution line (7) of a power distribution system (100) having inlets (9) to which the harmonic currents are output; and an accident section estimation unit (134) that estimates a short-circuit accident section from a categorization result obtained by categorizing, using the amplitude values of the harmonic currents respectively calculated by the measuring instruments (3), whether or not measuring instruments are the measuring instruments (3) by which the harmonic currents are detected.

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Inventors:
TERAZONO DAISUKE (JP)
INOUE SADAYUKI (JP)
MATSUMOTO KOKI (JP)
MANOHAR RUTVIKANANDAN (JP)
Application Number:
PCT/JP2022/030393
Publication Date:
February 15, 2024
Filing Date:
August 09, 2022
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01R31/08; H02H7/26; H02J13/00
Domestic Patent References:
WO2017158921A12017-09-21
Foreign References:
JP2015149887A2015-08-20
JP2018183034A2018-11-15
JPH10123188A1998-05-15
JP2006258485A2006-09-28
Attorney, Agent or Firm:
KURATANI, Yasutaka et al. (JP)
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