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1. 发明专利

JP2020089218A 保護リレー装置审中-公开
公开(公告)号：JP2020089218A
公开(公告)日：2020-06-04
申请号：JP2018225261
申请日：2018-11-30
申请人： TOSHIBA CORP , TOSHIBA ENERGY SYSTEM & SOLUTION CORP
发明人： ISHIBASHI SATORU , ISHIHARA YUJI , ICHIKAWA TAKAAKI , MAEDA TAKAFUMI , NAKAMURA TADASHI
IPC分类号： H02H3/46 , H02H3/06
摘要：【課題】一旦低下した周波数が回復した後、再度、電力系統の周波数が低下した場合に、負荷を遮断するタイミングが遅れないように制御することができる保護リレー装置を提供する。【解決手段】実施形態の保護リレー装置は、電力情報取得部と、遮断部と、遮断条件変更部と、を持つ。前記電力情報取得部は、電力系統における送電線に供給される電力に関する情報を取得する。前記遮断部は、前記電力情報取得部により取得された情報に基づいて、前記電力における周波数が低下した場合に、前記送電線から電力の供給を受ける複数の負荷の各々に対応して設けられ、前記送電線と当該負荷とを接続又は遮断する遮断器を、前記周波数が回復するまで順次遮断する。前記遮断条件変更部は、前記周波数が低下した後に前記周波数が回復した場合、前記遮断部による前記遮断器の各々を遮断する遮断条件を変更する。【選択図】図2

2. 发明专利

JP2015012733A 系統安定化装置有权
标题翻译：系统稳定装置
公开(公告)号：JP2015012733A
公开(公告)日：2015-01-19
申请号：JP2013137536
申请日：2013-06-28
申请人：株式会社東芝 , Toshiba Corp
发明人： MORIMOTO TOMOHIKO , ISHIBASHI SATORU , INOUE YASUNORI
IPC分类号： H02J3/00 , H02J13/00
摘要：【課題】限られたリソースで系統データの実装及びメンテナンスを実現することができ、優れた保守性及び信頼性を維持すると共にメンテナンス作業の作業効率向上を図る。【解決手段】ディジタルリレー形のオンライン事前演算型系統安定化装置1は、基本系統データAを記憶する系統データ記憶部2と、メンテナンス情報Bを入力する整定入力部3と、オンライン系統情報収集部4と、解析用系統モデル作成部5を有している。解析用系統モデル作成部5は、メンテナンス情報反映部である系統データ変更部5aと、オンライン系統情報反映部5bとからなる。基本系統データAとは、ノード、ブランチ、発電機定数、発電機制御系モデルの定数、誘導機特性、負荷特性、事故シーケンス等からなる。メンテナンス情報Bは、変更対象となるデータの指定と変更後のデータ内容を含み、データ種別やデータの通し番号、変更後のデータ項目や、変更後のデータ項目の設定値等からなる。【選択図】図1
摘要翻译：要解决的问题：以有限的资源实施系统数据的包装和维护，保持高可维护性和可靠性，提高维护工作的工作效率。解决方案：数字继电器在线预算系统稳定装置1包括：系统用于存储基本系统数据A的数据存储部分2; 用于输入维护信息B的结算输入部3; 在线系统信息收集部分4; 和分析系统模型生成部5.分析系统模型生成部5包括作为维护信息反射部的系统数据变更部5a和在线系统信息反映部5b。基本系统数据A包括节点，分支，发电机常数，发电机控制系统模型的常数，电感器特性，负载特性，事故序列等。维护信息B包括改变后的数据的指定和改变之后的数据内容，并且由数据类别或序列号的数据，变更后的数据项，改变后的数据项的设定值形成，等等。

3. 发明专利

JP2002271983A LOAD CLOSING SYSTEM OF ELECTRIC POWER SYSTEM 失效
公开(公告)号：JP2002271983A
公开(公告)日：2002-09-20
申请号：JP2001073543
申请日：2001-03-15
申请人： TOSHIBA CORP , TOSHIBA SYST TECH
发明人： ISHIBASHI SATORU , YAMAMORI WATARU , HASEGAWA OSAMU
IPC分类号： H02J3/00
摘要： PROBLEM TO BE SOLVED: To solve the problem where a closing circuit is necessary to be installed in each circuit so that a scale of hardware is increased, when accident detecting function and cooperation of the number of closing loads and closing time of each circuit are constituted in single equipment, therefore a problem does not occur when the number of circuits is little, however, it is difficult to ensure the mounting space of an input converter for taking in system quantity of electricity of circuit unit, when the number of circuits is increased. SOLUTION: Out of functions which are assigned to host equipment 10 in the conventional case, function for detecting a condition of load closing is assigned to the host equipment 10, load closing function is assigned to a control terminal 11 of a circuit unit, and both of them are coupled with each other by using a transmission line N, thereby delivering data.

4. 发明专利

JPH06197443A POWER SYSTEM STABILIZATION EQUIPMENT 失效
公开(公告)号：JPH06197443A
公开(公告)日：1994-07-15
申请号：JP35629992
申请日：1992-12-21
申请人： TOSHIBA CORP
发明人： ISHIBASHI SATORU
IPC分类号： H02H3/48 , H02J3/24
摘要： PURPOSE:To perform accurate out-of-step judging computation in a power system stabilization equipment. CONSTITUTION:This comprises means 12 for detecting the occurrence of an accident in a power system, means 14 for detecting that the power system has no oscillation and an out-of-step computing and judging section 13 which starts the out-of-step detecting computation when an accident has occurred and stops the out-of-step computing when the oscillation is judged to be eliminated.

5. 发明专利

JPS62281720A DIGITAL BLINDER RELAY 失效
公开(公告)号：JPS62281720A
公开(公告)日：1987-12-07
申请号：JP12216586
申请日：1986-05-29
申请人： TOSHIBA CORP
发明人： ISHIBASHI SATORU , MATSUSHIMA TETSUO
IPC分类号： H02H3/40

6. 发明专利

JP2001112163A POWER OSCILLATION DETECTOR 失效
公开(公告)号：JP2001112163A
公开(公告)日：2001-04-20
申请号：JP28534099
申请日：1999-10-06
申请人： TOSHIBA CORP
发明人： SAKATA TOSHIO , ISHIBASHI SATORU , INOUE TAISUKE
IPC分类号： H02H3/48 , H02J3/38
摘要： PROBLEM TO BE SOLVED: To effectively prevent the system protective function having serious influence on social life from being performed unnecessarily and easily, by enhancing the reliability on detection of power oscillation. SOLUTION: A p-side oscillation condition discriminating 4 operates the amplitude value of the p-side oscillation of power wave and the attenuation factor, and discriminates the p-side oscillation condition, based on this operation result. Moreover, an n-side oscillation condition discriminating unit 5 operates, for power, the n-side amplitude of the system and the attenuation factor, and judges the n-side oscillation condition, based on this operation result. An AND circuit 6 outputs a power oscillation detection signal, when both the p-side oscillation condition and the n-side oscillation conditions are materialized.

7. 发明专利

JP2000324681A OSCILLATION DETECTION SYSTEM 失效
公开(公告)号：JP2000324681A
公开(公告)日：2000-11-24
申请号：JP13415599
申请日：1999-05-14
申请人： TOSHIBA CORP
发明人： ISHIBASHI SATORU
IPC分类号： G01R19/00 , G01R31/00 , H02H3/48 , H02H3/50 , H02J3/24
摘要： PROBLEM TO BE SOLVED: To accurately detect only power system oscillation by accurately distinguishing fault of a power system from oscillation. SOLUTION: The amplitude value of the current of a power system to be protected is obtained by an amplitude value calculation part 12, it is decided at each preset time whether the current amplitude value is equal to or higher than a plurality of current levels being preset by a level deciding part 13, a decision result corresponding to each current level is outputted, and at the same time a decision result obtained this time is compared with previous one by an oscillation detection part 14. When only one of the decision results corresponding to each current level has changed in regard to the present and previous decision results by comparison, it is determined that system oscillation has occurred.

8. 发明专利

JPH11225428A POWER SYSTEM PROTECTING AND CONTROLLING EQUIPMENT 失效
公开(公告)号：JPH11225428A
公开(公告)日：1999-08-17
申请号：JP4125198
申请日：1998-02-06
申请人： TOSHIBA CORP
发明人： ISHIBASHI SATORU , SAKATA TOSHIO
IPC分类号： H02H3/05
摘要： PROBLEM TO BE SOLVED: To make it possible to surely output a signal of only a device of an earlier operating series out of two series, by priorly outputting an operation signal of the earlier operating series by a first-come-first-served circuit, an locking the outputs of both series for a specified period of time by the output signal. SOLUTION: In the case that device operating signals 111A of an A series operate earlier than device operating signals 111B of a B series, and a timer is set to 100 ms, the device operating signals 111A of the A-series are outputted from an output locking circuit 123A, and then a control output 121A is outputted through an outputting circuit 124 in the next stage. Then, when the device operating signals 111B of the B series operate 50 ms behind the device operating signals of the A series, the control output 121A of the A series is extended by 100 ms by a timer T1 and then is reversed by a NOT circuit 10 and now an output locking signal is '1'. Therefore, the device operating signals 111B of the B series ore locked without being outputted from the output locking circuits 123A, 123B.

9. 发明专利

JPH0670469A SYSTEM STABILIZING APPARATUS 失效
公开(公告)号：JPH0670469A
公开(公告)日：1994-03-11
申请号：JP21313192
申请日：1992-08-11
申请人： TOSHIBA CORP
发明人： HACHISUGA TSUTOMU , KASAI ATSUSHI , INOUE TAISUKE , ISHIBASHI SATORU
IPC分类号： H02J3/24
摘要： PURPOSE:To keep a dual-system operation as possible when faults are created in terminal apparatuses, central apparatuses and/or transmission lines by a method wherein a system unstable state is detected and control for maintaining the stable supply of a power is performed. CONSTITUTION:The output changeover parts 10A and 10B of the central apparatuses of first and second systems of which a dual-system structure is composed receive the normal/fault judgment outputs of the central apparatuses and all the terminal apparatuses from both the automatic monitoring parts 6A and 6B of self system and the other system. Further, control operation results are inputted from both operating parts 4A and 4B. For instance if the first system central apparatus 9A and all the terminal apparatuses are normal and the second system central apparatus has a fault, therefore, the control operation results of the first system central apparatus 9A are supplied to a plurality of the terminal apparatuses of the first system from the first system central apparatus 9A only. With this constitution, a dual-system operation can be kept as possible.

10. 发明专利

JPH04364319A PROTECTIVE UNIT FOR POWER SYSTEM 失效
公开(公告)号：JPH04364319A
公开(公告)日：1992-12-16
申请号：JP16631791
申请日：1991-06-11
申请人： TOSHIBA CORP
发明人： ISHIBASHI SATORU
IPC分类号： H02H3/42 , H02H3/04 , H02H3/05 , H02H3/247 , H02J3/24
摘要： PURPOSE:To detect fault of power system reliably by providing means for detecting a fault and holding the fault detection for a predetermined time. CONSTITUTION:A fault detecting section 12a detects occurrence of fault based on an averaged value of power operated at a power value operating section 11b and a power operated at a power operating section 11a. A fault removal detecting section 12b detects occurrence of fault based on an averaged value of power operated at a power averaged value operating section 11b and a power operated at the power operating section 11a. An under fault detecting section 17 detects under fault based on signals detected at the fault detecting section 12a and the fault removal detecting section 12b. In other words, upon detection of a fault 91D1 a fault occurrence detecting/holding section 13a holds a fault occurrence signal for a predetermined time, and an under fault detection 14 signal is set based on the output from an under fault recording/holding section 13c. According to the invention, under fault can be detected reliably.

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