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Patent Searching and Data


Title:
INTELLIGENT ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/042587
Kind Code:
A1
Abstract:
In an intelligent electronic device (40), a first reception circuit (42) receives from a merging unit first time series data of a first sample rate indicating the quantity of electricity of a power system. An up-conversion unit (64), by interpolating the first time series data, converts the first time series data to second time series data having a second sample rate that is a higher rate than the first sample rate. A down-conversion unit (67), by periodically extracting data points of changeable arbitrary sample times from the second time series data, converts the second time series data to third time series data having a third sample rate that is a lower rate than the first sample rate. A relay operation unit (69) performs protection relay operation using the third time series data.

Inventors:
ODA, Shigetoo (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2016/075621
Publication Date:
March 08, 2018
Filing Date:
September 01, 2016
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02H3/02
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Central Tower, 2-7 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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