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1. (WO2018042587) INTELLIGENT ELECTRONIC DEVICE

Pub. No.:    WO/2018/042587    International Application No.:    PCT/JP2016/075621
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Sep 02 01:59:59 CEST 2016
IPC: H02H 3/02
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: ODA, Shigetoo
尾田 重遠
Title: INTELLIGENT ELECTRONIC DEVICE
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.