JPH05145966A - Power plant system - Google Patents

Power plant system

Info

Publication number
JPH05145966A
JPH05145966A JP3301487A JP30148791A JPH05145966A JP H05145966 A JPH05145966 A JP H05145966A JP 3301487 A JP3301487 A JP 3301487A JP 30148791 A JP30148791 A JP 30148791A JP H05145966 A JPH05145966 A JP H05145966A
Authority
JP
Japan
Prior art keywords
line
control station
communication
supervisory control
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3301487A
Other languages
Japanese (ja)
Inventor
Shuji Yamakawa
修司 山川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP3301487A priority Critical patent/JPH05145966A/en
Publication of JPH05145966A publication Critical patent/JPH05145966A/en
Pending legal-status Critical Current

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Landscapes

  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To enable backup by providing an HDLC procedure communication equipments to a main monitor control station and a monitor control station in a system in which the multiplexing of an LAN line is impossible, and connecting both stations through a line switcher by a backup line. CONSTITUTION:When a defect is generated in an LAN line 13 between the main monitor control station and one of plural monitor control stations 11, the main monitor control station 10 detects the generation of communication time-out and transmits data to an HDLC procedure communication equipment 14 so as to connect a backup line 16 to the monitor control station 11 by a line switcher 15. According to the data, the procedure station 14 extracts a connecting line number, outputs a selecting command, operates the line switcher 15 and connects the control station 10 and the monitor control station 11 by the backup line 16. Thus, the backup of communication with the monitor control station can easily be executed.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、ＬＡＮ回線が１重化の
発電所システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power plant system having a single LAN line.

【０００２】[0002]

【従来の技術】従来、この種のＬＡＮ回線が１重化の小
規模の発電所システムとしては、図３に示すように、自
動制御，監視をコントロールする主監視制御コントロー
ル局１と、各制御機器を制御監視する監視制御局２と、
監視のみを行う監視局３と、各局間をつなぐ主通信回路
であるＬＡＮ回線６とで構成したものが知られている。
図３に示すように、ＬＡＮ通信回線の通信のバックアッ
プ，すなわち、信頼性向上は、通信回線の多重化にて実
現している。2. Description of the Related Art Conventionally, as a small-scale power plant system with a single LAN line of this type, as shown in FIG. 3, a main supervisory control station 1 for controlling automatic control and surveillance, and each control station. A supervisory control station 2 for controlling and monitoring equipment,
It is known that a monitoring station 3 that only monitors and a LAN line 6 that is a main communication circuit connecting each station is configured.
As shown in FIG. 3, backup of the communication of the LAN communication line, that is, improvement of reliability is realized by multiplexing the communication line.

【０００３】[0003]

【発明が解決しようとする課題】ところが、図３に示す
方式が採用可能なシステムは、中大規模発電所システム
及び重要度の高いシステムに限られている。However, the systems to which the method shown in FIG. 3 can be applied are limited to medium and large-scale power plant systems and highly important systems.

【０００４】そのため、小規模の発電所システムの１重
化方式のＬＡＮ回線において、ＬＡＮ回線が通信回線の
故障等が発生すると、自動制御監視ができなくなり、電
力系統運用上大きな問題になることがあるとともに、か
かる場合には、人間系の操作，監視で行っており、運転
員の負担は、計り知れないものがあった。For this reason, in a single-use LAN line for a small-scale power plant system, if a communication line failure or the like occurs in the LAN line, automatic control and monitoring cannot be performed, which may cause a serious problem in power system operation. In addition, in such a case, the human system is operated and monitored, and the burden on the operator has been immeasurable.

【０００５】本発明はかかる問題点を解決するためにな
されたもので、その目的は、ＬＡＮ回線の多重化が不可
能なシステムにおいて主監視制御コントロール局と監視
制御局間の通信回線のみをバックアップが行えるように
した小規模発電所システムを提供することにある。The present invention has been made to solve the above problems, and its purpose is to back up only the communication line between the main supervisory control station and the supervisory control station in a system in which multiplexing of LAN lines is impossible. The purpose is to provide a small-scale power plant system that enables

【０００６】[0006]

【課題を解決するための手段】本発明に係る発電所シス
テムは、ＬＡＮ回線が１重化の発電所システムにおい
て、自動制御，監視をコントロールする主監視制御コン
トロール局に、ＨＤＬＣ手順通信器と回線切替器を設
け、主監視制御コントロール局との間で通信のバックア
ップを行う監視制御局にもＨＤＬＣ手順通信器を設け、
主監視制御コントロール局と監視制御局間を回線切替器
を介してバックアップ回線にて接続し、主通信回線であ
るＬＡＮ回線が不良となったことを通信手順上のエラー
にて認識を行い、主監視制御コントロール局と監視制御
局間の通信をＨＤＬＣ手順の伝送にてバックアップを行
うものである。According to the power station system of the present invention, in a power station system having a single LAN line, an HDLC procedure communication device and a line are connected to a main supervisory control station for controlling automatic control and monitoring. A switching device is provided, and an HDLC procedure communication device is also provided in the supervisory control station that backs up communication with the main supervisory control station.
The main supervisory control station and the supervisory control station are connected by a backup line via a line switch, and the fact that the LAN line, which is the main communication line, has become defective is recognized by an error in the communication procedure. Communication between the supervisory control station and the supervisory control station is backed up by transmission of the HDLC procedure.

【０００７】[0007]

【作用】本発明に係る発電所システムにおいては、主監
視制御コントロール局と監視制御局間の通信が、ＬＡＮ
回線経由でできなくなった場合、主監視制御コントロー
ル局の判断でバックアップ回線を用いて通信に切り替え
ることにより、通信のバックアップを行うことができ
る。又、複数の監視制御局の通信ができなくなった場合
は、回線切換器を用いて監視制御局間通信のマルチプレ
クスを行うことができる。In the power station system according to the present invention, the communication between the main supervisory control station and the supervisory control station is the LAN.
If it becomes impossible to connect via the line, communication can be backed up by switching to communication using the backup line at the discretion of the main supervisory control station. Further, when communication with a plurality of supervisory control stations becomes impossible, it is possible to multiplex communication between supervisory control stations by using a line switch.

【０００８】[0008]

【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１及び図２に基づいて本発明の一実施例を説明
する。Embodiments of the present invention will be described below with reference to the drawings. An embodiment of the present invention will be described with reference to FIGS. 1 and 2.

【０００９】本実施例に係る発電所システムは、自動制
御，監視をコントロールする主監視制御コントロール局
１０と、各制御機器を制御監視する監視制御局１１と、
監視のみを行う監視局１２と、各局間をつなぐ主通信回
路であるＬＡＮ回線１３と、バックアップの通信を司る
ＨＤＬＣ手順通信器１４と、主監視制御コントロール局
１０に各監視制御局１１への回線を選択する回線切替器
１５と、ＨＤＬＣ通信回路であるバックアップ回線１６
とで構成されている。次に、本実施例の作用を説明す
る。The power plant system according to this embodiment includes a main supervisory control station 10 for controlling automatic control and surveillance, a supervisory control station 11 for controlling and supervising each control device,
A monitoring station 12 that only monitors, a LAN line 13 that is a main communication circuit that connects each station, an HDLC procedure communication device 14 that manages backup communication, and a line to each monitoring control station 11 from the main monitoring control control station 10 Line switching device 15 for selecting a backup line 16 which is an HDLC communication circuit
It consists of and. Next, the operation of this embodiment will be described.

【００１０】主監視制御コントロール局１０と複数ある
監視制御局１１の１つの間のＬＡＮ回線１３の故障点Ａ
において、通信回路又はＬＡＮ回線１３が不良となった
場合、ＬＡＮの通信手順上のエラーである通信タイムア
ウトが発生する。これにより、通信が不良であることを
主監視制御コントロール局１０にて検出する。A fault point A of the LAN line 13 between the main supervisory control station 10 and one of the plural supervisory control stations 11
In the case where the communication circuit or the LAN line 13 becomes defective, a communication timeout, which is an error in the LAN communication procedure, occurs. Thereby, the main supervisory control station 10 detects that the communication is defective.

【００１１】このエラー検出により、主監視制御コント
ロール局１０は、回線切替器１５に対して通信が不良と
なった監視制御局１１にバックアップ回線１６を接続す
るようにＨＤＬＣ手順通信器１４にデータを渡す。この
データは、ＨＤＬＣ手順通信器１４のインターフェイス
バッファ１９に入力される。Due to this error detection, the main supervisory control station 10 sends data to the HDLC protocol communicator 14 so as to connect the backup line 16 to the supervisory control station 11 whose communication with the line switch 15 has become defective. hand over. This data is input to the interface buffer 19 of the HDLC protocol communication device 14.

【００１２】インターフェイスバッファ１９に入力され
たデータからＨＤＬＣ手順コントロール部２０にて接続
回線の番号を取り出し、回線選択指令部２１により回線
切換器１５に対し選択指令を出力する。The HDLC procedure control unit 20 extracts the number of the connection line from the data input to the interface buffer 19, and the line selection command unit 21 outputs a selection command to the line switching unit 15.

【００１３】この選択指令により、回線切換器１５内の
回線選択コントロール部１８を動作させる指令を出力
し、回線選択スイッチ１７を動作させることにより主制
御監視コントロール局１０と通信不良である監視制御局
１１間のデータ通信が可能となっことを、ＨＤＬＣ手順
コントロール部２０にて伝送変換部２２よりの信号にて
判断を行い、データ送受信を開始する。これにより、通
信回路又はＬＡＮ回線１３のバックアップを行う。In response to this selection command, a command to operate the line selection control unit 18 in the line switch 15 is output, and the line selection switch 17 is operated to operate the line control switch 17 and the supervisory control station which has a communication failure. The HDLC procedure control unit 20 determines that the data communication between the communication terminals 11 is enabled by a signal from the transmission conversion unit 22, and starts data transmission / reception. As a result, the communication circuit or the LAN line 13 is backed up.

【００１４】又、主監視制御コントロール局１０と複数
の監視制御局１１の間のＬＡＮ回線１３の故障点Ｂにお
いて、通信回路又はＬＡＮ回線１３が不良となった場
合、ＬＡＮの通信手順上のエラーである通信タイムアウ
トが発生する。これにより、通信が不良であることを主
監視制御コントロール局１０にて検出する。At the fault point B of the LAN line 13 between the main supervisory control station 10 and a plurality of supervisory control stations 11, if the communication circuit or the LAN line 13 becomes defective, an error occurs in the communication procedure of the LAN. A communication timeout occurs. As a result, the main supervisory control station 10 detects that the communication is bad.

【００１５】このエラー検出により、主監視制御コント
ロール局１０は、回線切替器１５に対して通信が不良と
なった監視制御局１１にバックアップ回線１６を接続す
るようにＨＤＬＣ手順通信器１４にデータを渡す。この
データは、ＨＤＬＣ手順通信器１４のインターフェイス
バッファ１９に入力される。Due to this error detection, the main supervisory control station 10 sends data to the HDLC protocol communicator 14 so as to connect the backup line 16 to the supervisory control station 11 whose communication with the line switch 15 has become defective. hand over. This data is input to the interface buffer 19 of the HDLC protocol communication device 14.

【００１６】インターフェイスバッファ１９に入力され
たデータからＨＤＬＣ手順コントロール部２０にて接続
回線の番号を取り出し、回線選択指令部２１により回線
切換器１５に対し選択指令を出力する。The HDLC procedure control unit 20 extracts the number of the connected line from the data input to the interface buffer 19, and the line selection command unit 21 outputs a selection command to the line switching unit 15.

【００１７】この選択指令により、回線切換器１５内の
回線選択コントロール部１８より回線選択スイッチ１７
を動作させる指令を出力し、回線選択スイッチ１７を動
作させることにより主制御監視コントロール局１０と通
信不良である監視制御局１１間のデータ通信が可能とな
っことを、ＨＤＬＣ手順コントロール部２０にて伝送変
換部２２よりのデータにて判断を行い、データ送受信を
開始する。これにより、通信回路又はＬＡＮ回線１３の
バックアップを行う。In response to this selection command, the line selection control unit 18 in the line switching unit 15 causes the line selection switch 17 to operate.
The HDLC procedure control unit 20 indicates that data communication between the main control monitoring control station 10 and the supervisory control station 11 having a communication failure can be performed by outputting a command to operate the line control switch 17 and operating the line selection switch 17. A judgment is made based on the data from the transmission conversion unit 22, and data transmission / reception is started. As a result, the communication circuit or the LAN line 13 is backed up.

【００１８】データ通信が１つ目の監視制御局１１との
間にて完了すると、次の監視制御局１１に対しデータ通
信を行えるようにするために、主監視制御コントロール
局１０はバックアップ回線１６を接続するようにＨＤＬ
Ｃ手順通信器１４にデータを渡す。このデータは、ＨＤ
ＬＣ手順通信器１４のインターフェイスバッファ１９に
入力される。When the data communication is completed with the first supervisory control station 11, the main supervisory control station 10 has a backup line 16 so that the next supervisory control station 11 can perform data communication. HDL to connect
Data is passed to the C procedure communication device 14. This data is HD
It is input to the interface buffer 19 of the LC procedure communication device 14.

【００１９】インターフェイスバッファ１９に入力され
たデータからＨＤＬＣ手順コントロール部２０にて接続
回線の番号を取り出し、回線選択指令部２１により回線
切換器１５に対し選択指令を出力する。The HDLC procedure control unit 20 extracts the number of the connected line from the data input to the interface buffer 19, and the line selection command unit 21 outputs a selection command to the line switching unit 15.

【００２０】この選択指令により、回線切換器１５内の
回線選択コントロール部１８より回線選択スイッチ１７
を動作させる指令を出力し、回線選択スイッチ１７を動
作させることにより主監視制御コントロール部１０と通
信不良である監視制御局１１間のデータ通信が可能とな
ったことを、ＨＤＬＣ手順コントロール部２０にて伝送
変換部２２よりのデータにて判断を行い、データ送受信
を開始する。これにより、通信回路又はＬＡＮ回線１３
のバックアップを行う。In response to this selection command, the line selection control unit 18 in the line switching unit 15 causes the line selection switch 17 to operate.
That the data communication between the main supervisory control controller 10 and the supervisory control station 11 having a communication failure is enabled by outputting the command for operating the HDLC procedure controller 20. Then, the data from the transmission conversion unit 22 is used to make a determination, and data transmission / reception is started. Thereby, the communication circuit or the LAN line 13
Backup.

【００２１】この選択指令により、回線切換器１５内の
回線選択コントロール部１８より回線選択スイッチ１７
を動作させる指令を出力し、回線選択スイッチ１７を動
作させることにより、主監視制御コントロール部１０と
通信不良である監視制御局１１間のデータ通信が可能と
なり、通信回路又はＬＡＮ回線１３のバックアップが行
える。以上のことを繰り返すこと（順次スキャン）によ
り、複数の監視制御局１１との間の通信のバックアップ
を行う。In response to this selection command, the line selection control unit 18 in the line switching unit 15 causes the line selection switch 17 to operate.
By outputting a command to operate the line selection switch 17 and operating the line selection switch 17, data communication between the main supervisory control unit 10 and the supervisory control station 11 having a communication failure becomes possible, and the communication circuit or the LAN line 13 is backed up. You can do it. By repeating the above (sequential scanning), the communication with the plurality of monitoring control stations 11 is backed up.

【００２２】以上のように、本実施例によれば、主監視
制御コントロール局１０と監視制御局１１との間の通信
をＨＤＬＣ手順を使用することで、ＬＡＮ回線１３で通
信をしていたデータ量を減らすことなく通信ができる。
又、モデム等を使用することで遠方への通信が可能とな
る。更に、主監視制御コントロール局１０に回線切換器
１５を設けることで、複数局のバックアップが可能とな
る。As described above, according to this embodiment, by using the HDLC procedure for communication between the main supervisory control station 10 and the supervisory control station 11, the data communicated on the LAN line 13 is transmitted. Communication is possible without reducing the amount.
Further, by using a modem or the like, communication to a distant place becomes possible. Further, by providing the line switch 15 in the main supervisory control station 10, it is possible to back up a plurality of stations.

【００２３】[0023]

【発明の効果】以上のように、本発明によれば、１重化
のＬＡＮ回線システムにおいて、監視制御局との通信の
バックアップが低廉に行える。又、ＬＡＮ回線の通信故
障が発生しても、自動制御監視が可能となり、人間系に
よる操作，監視の緊急性がなくなる。更に、バックアッ
プ対象局の増設が容易に行えるようになるという利点が
ある。As described above, according to the present invention, it is possible to inexpensively back up the communication with the supervisory control station in the single LAN line system. Further, even if a communication failure occurs on the LAN line, automatic control and monitoring becomes possible, and the urgency of operation and monitoring by a human system is eliminated. Further, there is an advantage that the number of backup target stations can be easily increased.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例に於け構成図である。FIG. 1 is a configuration diagram of an embodiment of the present invention.

【図２】本発明の一実施例の主要部分の詳細構成図であ
る。FIG. 2 is a detailed configuration diagram of a main part of an embodiment of the present invention.

【図３】従来の構成図である。FIG. 3 is a conventional configuration diagram.

【符号の説明】[Explanation of symbols]

１０………主監視制御コントロール局 １１………監視制御局 １２………監視局 １３………ＬＡＮ回線 １４………ＨＤＬＣ手順通信器 １５………回線切換器 １６………バックアップ回線 10 ………… Main supervisory control station 11 ………… Supervisory control station 12 ………… Surveillance station 13 ………… LAN line 14 ………… HDLC procedure communication device 15 ………… Line switcher 16 ………… Backup line

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０４Ｑ 9/00 Ｌ 7170−5Ｋ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location H04Q 9/00 L 7170-5K

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 ＬＡＮ回線が１重化の発電所システムに
おいて、自動制御，監視をコントロールする主監視制御
コントロール局に、ＨＤＬＣ手順通信器と回線切替器を
設け、主監視制御コントロール局との間で通信のバック
アップを行う監視制御局にもＨＤＬＣ手順通信器を設
け、主監視制御コントロール局と監視制御局間を回線切
替器を介してバックアップ回線にて接続し、主通信回線
であるＬＡＮ回線が不良となったことを通信手順上のエ
ラーにて認識を行い、主監視制御コントロール局と監視
制御局間の通信をＨＤＬＣ手順の伝送にてバックアップ
を行うことを特徴とする小規模発電所システム。1. In a power station system with a single LAN line, an HDLC procedure communication device and a line switching device are provided in a main supervisory control control station for controlling automatic control and monitoring, and a main supervisory control control station is provided. The HDLC protocol communication device is also installed in the supervisory control station that backs up the communication by using the backup line between the main supervisory control station and the supervisory control station via the line switch, and the LAN line that is the main communication line is A small-scale power plant system characterized by recognizing a failure by an error in the communication procedure and backing up communication between the main supervisory control station and the supervisory control station by transmitting the HDLC procedure.
JP3301487A 1991-11-18 1991-11-18 Power plant system Pending JPH05145966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3301487A JPH05145966A (en) 1991-11-18 1991-11-18 Power plant system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3301487A JPH05145966A (en) 1991-11-18 1991-11-18 Power plant system

Publications (1)

Publication Number Publication Date
JPH05145966A true JPH05145966A (en) 1993-06-11

Family

ID=17897505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3301487A Pending JPH05145966A (en) 1991-11-18 1991-11-18 Power plant system

Country Status (1)

Country Link
JP (1) JPH05145966A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009171112A (en) * 2008-01-15 2009-07-30 Toshiba Corp Plant monitoring control system
WO2011115273A1 (en) * 2010-03-19 2011-09-22 三洋電機株式会社 Power supply system, and data acquiring apparatus for power supply system
US9255525B2 (en) 2012-11-30 2016-02-09 General Electric Company System and method for gas turbine operation
US9411326B2 (en) 2012-08-21 2016-08-09 General Electric Company Plant control optimization system including visual risk display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009171112A (en) * 2008-01-15 2009-07-30 Toshiba Corp Plant monitoring control system
WO2011115273A1 (en) * 2010-03-19 2011-09-22 三洋電機株式会社 Power supply system, and data acquiring apparatus for power supply system
US9411326B2 (en) 2012-08-21 2016-08-09 General Electric Company Plant control optimization system including visual risk display
US9255525B2 (en) 2012-11-30 2016-02-09 General Electric Company System and method for gas turbine operation

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