PROTECTIVE CONTROL DEVICE AND PROTECTION CONTROL SYSTEM

• Main Authors: ISHII SAORI, AKUTAGAWA TAKAHIRO, ISHIBASHI SATORU, IWAKI HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 14.09.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

To provide a protective control device and a protection control system capable of reliably interrupting lines that need to be simultaneously interrupted.SOLUTION: A protective control device includes a voltage acquisition unit, an abnormality detection unit, a control condition setting unit, a group decomposition unit, and an output unit. The voltage acquisition unit acquires a voltage of a power system. The abnormality detection unit detects a frequency abnormality when a time period during which a frequency of the acquired voltage is equal to or less than a setting value is equal to or longer than a predetermined time. The control condition setting unit sets, on the basis of the detected frequency abnormality, control conditions for each of a plurality of line groups including a plurality of lines which are set in advance. The group decomposition unit distributes a control signal to be provided for the plurality of lines included in the line group, when the control conditions are satisfied. The output unit outputs the control signal to the plurality of lines.SELECTED DRAWING: Figure 2 【課題】同時に遮断が必要な回線を確実に同時に遮断することができる保護制御装置及び保護制御システムを提供する。【解決手段】実施形態の保護制御装置は、電圧取込部と、異常検出部と、制御条件設定部と、グループ分解部と、出力部と、を持つ。電圧取込部は、電力系統の電圧を取込む。異常検出部は、取り込んだ電圧の周波数が設定値以下である時間が所定時間以上である場合に周波数異常を検出する。制御条件設定部は、検出された周波数異常に基づいて、予め設定された複数の回線を含む複数の回線グループごとの制御条件を設定する。グループ分解部は、前記制御条件が満たされた場合に、前記回線グループに含まれる複数の前記回線に対して提供する制御信号を分配する。出力部は、前記制御信号を複数の前記回線に出力する。【選択図】図２