JPH07163068A - Wide area network system for electric power system information - Google Patents
Wide area network system for electric power system informationInfo
- Publication number
- JPH07163068A JPH07163068A JP5303624A JP30362493A JPH07163068A JP H07163068 A JPH07163068 A JP H07163068A JP 5303624 A JP5303624 A JP 5303624A JP 30362493 A JP30362493 A JP 30362493A JP H07163068 A JPH07163068 A JP H07163068A
- Authority
- JP
- Japan
- Prior art keywords
- voltage drop
- information
- instantaneous voltage
- bus
- power system
- 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.)
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電力系統母線の瞬時電
圧低下を検出する母線瞬時電圧低下検出装置が収集及び
編集した情報を受信し、マンマシンインタフェース装置
へ瞬時電圧低下の発生範囲情報を出力する情報システム
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention receives information collected and edited by a bus instantaneous voltage drop detecting device for detecting an instantaneous voltage drop of a power system bus, and provides a man-machine interface device with information on the occurrence range of the instantaneous voltage drop. It relates to the information system to be output.
【０００２】[0002]
【従来の技術】電力系統は、落雷等の影響により事故が
発生した場合、事故除去後高速度再閉路により電力系統
の安定度を高めるようにしている。この場合、事故電流
の発生から、高速度再閉路が完了するまでの時間に事故
点（故障点）を中心に電圧が低下する。電圧低下の継続
時間は１秒以下であることが多く、この現象を瞬時電圧
低下と言う。近年の電子機器の中には基準電圧に対し20
％以上の電圧低下がたとえ短時間でも発生すると動作に
影響を受けるものがある。2. Description of the Related Art In a power system, when an accident occurs due to a lightning strike or the like, the stability of the power system is improved by high-speed reclosing after the accident is eliminated. In this case, the voltage drops around the accident point (fault point) during the time from the occurrence of the accident current to the completion of the high-speed reclosing. The duration of voltage drop is often 1 second or less, and this phenomenon is called instantaneous voltage drop. Some electronic devices in recent years have a 20%
Even if the voltage drop of% or more occurs even for a short time, the operation may be affected.
【０００３】母線の瞬時電圧低下を検出するために、母
線瞬時電圧低下検出装置を対象母線に設置し、各検出対
象母線の瞬時電圧低下情報を収集及び編集してマンマシ
ンインタフェース装置の画面などに出力していた。In order to detect the instantaneous voltage drop of the bus bar, a bus bar instantaneous voltage drop detecting device is installed on the target bus line, and the instantaneous voltage drop information of each detection target bus line is collected and edited and displayed on the screen of the man-machine interface device. It was outputting.
【０００４】[0004]
【発明が解決しようとする課題】母線瞬時電圧低下検出
装置が収集及び編集した情報は、検出対象母線に対する
瞬時電圧低下情報であり、母線瞬時電圧低下検出装置が
設置されていない検出対象外の母線に対して瞬時電圧低
下発生の有無がわからなかった。また、全ての母線に母
線瞬時電圧低下検出装置を設置することは経済的な理由
で困難が伴う。The information collected and edited by the bus instantaneous voltage drop detecting device is the instantaneous voltage drop information for the bus to be detected, and is not the detection target bus to which the bus instantaneous voltage drop detecting device is not installed. However, I did not know whether or not an instantaneous voltage drop had occurred. Further, it is difficult to install the instantaneous bus voltage drop detection device on all the bus bars for economical reasons.
【０００５】従って、本発明は電力系統の任意の母線に
設置した母線瞬時電圧低下検出装置が収集及び編集した
瞬時電圧低下情報から、瞬時電圧低下の影響範囲を算出
及び提供することを目的とする。Therefore, an object of the present invention is to calculate and provide the influence range of the instantaneous voltage drop from the instantaneous voltage drop information collected and edited by the bus instantaneous voltage drop detection device installed on an arbitrary bus of the power system. .
【０００６】[0006]
【課題を解決するための手段】本発明は電力系統の状態
情報を収集し、電力系統の接続状態情報や状態変化情報
等を作成する電力系統情報収集手段と、電力系統状態の
情報を記憶する電力系統状態保存部と、電力系統状態の
情報を上記電力系統状態保存部に格納する電力系統状態
保存手段と、電力系統の母線の瞬時電圧低下を検出する
母線瞬時電圧低下検出装置が収集及び編集した母線瞬時
電圧低下情報を広域ネットワークを介して受信する母線
瞬時電圧低下情報受信手段と、瞬時電圧低下影響母線情
報を記憶する瞬時電圧低下影響母線保存手段と、母線瞬
時電圧低下情報と瞬時電圧低下発生直前の電力系統状態
とから瞬時電圧低下影響母線を算出し、上記瞬時電圧低
下影響母線保存手段に格納する瞬時電圧低下影響母線算
出手段と、瞬時電圧低下影響母線情報の表示部である瞬
時電圧低下影響母線表示部と、上記瞬時電圧低下影響母
線表示部に瞬時電圧低下影響母線情報を表示出力する瞬
時電圧低下影響母線表示手段とから構成した。According to the present invention, power system information collecting means for collecting state information of a power system and creating connection state information, state change information, etc. of the power system, and information of the power system state are stored. Collected and edited by a power system state storage unit, a power system state storage unit that stores information on the power system state in the power system state storage unit, and a bus instantaneous voltage drop detection device that detects an instantaneous voltage drop of a bus of the power system. Bus instantaneous voltage drop information receiving means for receiving the generated bus instantaneous voltage drop information through a wide area network, instantaneous voltage drop effect bus bar storing means for storing instantaneous voltage drop effect bus bar information, bus bar instantaneous voltage drop information and instantaneous voltage drop The instantaneous voltage drop influence bus bar is calculated from the state of the power system immediately before the occurrence and is stored in the instantaneous voltage drop influence bus bar storage means, and the instantaneous voltage drop influence bus calculation means is stored. A momentary voltage drop affected busbar display unit is a display unit of the drop impact bus information was composed of a momentary voltage drop influenced bus display means for displaying and outputting an instantaneous voltage drop influenced bus information on the instantaneous voltage drop affected bus display unit.
【０００７】[0007]
【作用】上記電力系統情報収集手段において、周期的に
収集された電力系統情報を用いて、電力系統の接続状態
情報と有効電力の潮流方向情報を作成する。電力系統状
態保存手段において上記作成された電力系統の接続状態
情報と有効電力の潮流方向情報を上記電力系統状態保存
部に状態情報の時刻情報と共に格納し、一定時間保存す
る。In the power system information collecting means, the power system information periodically collected is used to create connection state information of the power system and active power flow direction information. The connection state information of the electric power system and the power flow direction information of the active power created by the electric power system state storage means are stored in the electric power system state storage unit together with the time information of the state information and stored for a certain period of time.
【０００８】瞬時電圧低下検出母線に瞬時電圧低下が発
生すると、上記母線瞬時電圧低下情報受信手段において
母線瞬時電圧低下検出装置から瞬時電圧低下情報を受信
する。瞬時電圧低下影響母線算出手段において、瞬時電
圧低下情報と電力系統状態保存部に保存された瞬時電圧
低下発生直前の電力系統の接続状態情報と有効電力の潮
流方向情報とから瞬時電圧低下影響母線を算出し、上記
瞬時電圧低下影響母線保存手段に格納する。When an instantaneous voltage drop occurs on the instantaneous voltage drop detection bus bar, the instantaneous voltage drop information receiving means receives the instantaneous voltage drop information from the bus bar instantaneous voltage drop detection device. In the instantaneous voltage drop influence bus calculating means, the instantaneous voltage drop influence bus bar is calculated from the instantaneous voltage drop information, the connection state information of the power system immediately before the occurrence of the instantaneous voltage drop stored in the power system state storage unit, and the power flow direction information of active power. Calculated and stored in the above-mentioned instantaneous voltage drop influence bus bar storage means.
【０００９】上記瞬時電圧低下影響母線表示部に瞬時電
圧低下影響母線情報の表示を要求すると瞬時電圧低下影
響母線手段において瞬時電圧低下影響母線保存手段から
瞬時電圧低下影響母線情報を取り出し、瞬時電圧低下影
響母線表示部に瞬時電圧低下影響母線情報を表示出力す
る。When the instantaneous voltage drop effect bus bar display unit is requested to display the instantaneous voltage drop effect bus bar information, the instantaneous voltage drop effect bus bar means retrieves the instantaneous voltage drop effect bus bar information from the instantaneous voltage drop effect bus bar storage means, and the instantaneous voltage drop. The instantaneous voltage drop influence bus bar information is displayed and output to the influence bus bar display unit.
【００１０】[0010]
【実施例】以下、図面を参照して実施例を説明する。図
１は本発明による電力系統情報の広域ネットワークシス
テムの一実施例の機能ブロック図である。Embodiments Embodiments will be described below with reference to the drawings. FIG. 1 is a functional block diagram of an embodiment of a wide area network system for power system information according to the present invention.
【００１１】図１において、１は電力系統であり、２は
電力系統情報の広域ネットワークシステムである。この
システム２は前記電力系統１からの状態情報（例えば開
閉器の入・切状態値と変圧器の電力潮流値等）を収集
し、電力系統状態情報を作成する電力系統情報収集手段
21と、この作成された電力系統状態情報とその状態情報
の時刻情報を、電力系統状態保存部23に格納する電力系
統状態保存手段22と、電力系統１内の瞬時電圧低下検出
対象母線の瞬時電圧低下を検出する母線瞬時電圧低下検
出装置12から検出母線の瞬時電圧低下情報（例えば検出
母線名情報と瞬時電圧低下発生時刻情報等）を広域ネッ
トワーク11を介して受信する母線瞬時電圧低下情報受信
手段24と、母線瞬時電圧低下情報と瞬時電圧低下発生直
前の電力系統状態とから瞬時電圧低下影響母線を算出
し、瞬時電圧低下影響母線保存手段26に瞬時電圧低下影
響母線情報を格納する瞬時電圧低下影響母線算出手段25
と、瞬時電圧低下影響母線情報の表示要求を瞬時電圧低
下影響母線表示部28に行うと、瞬時電圧低下影響母線情
報を瞬時電圧低下影響母線表示部28に表示出力する瞬時
電圧低下影響母線表示手段27からなる。In FIG. 1, reference numeral 1 is a power system, and 2 is a wide area network system for power system information. The system 2 collects state information (for example, switch ON / OFF state value and transformer power flow value) from the power system 1 to create power system state information.
21, the power system state storage means 22 for storing the generated power system state information and the time information of the state information in the power system state storage unit 23, and the instantaneous voltage drop detection target bus in the power system 1 Bus instantaneous voltage drop information is received from the bus instantaneous voltage drop detection device 12 that detects a voltage drop (for example, detected bus name information and instantaneous voltage drop occurrence time information) via the wide area network 11 Means 24, an instantaneous voltage drop effect bus bar is calculated from the bus instantaneous voltage drop information and the power system state immediately before the occurrence of the instantaneous voltage drop, and the instantaneous voltage drop effect bus bar storing means 26 stores the instantaneous voltage drop effect bus information. Degradation influence bus calculation means 25
And a request to display the instantaneous voltage drop influence bus bar information to the instantaneous voltage drop influence bus bar display unit 28, the instantaneous voltage drop influence bus bar information is displayed and output to the instantaneous voltage drop influence bus bar display unit 28. It consists of 27.
【００１２】図２は本発明の適用される電力系統状態例
図であり、発電機Ｇ１〜Ｇ３、母線Ｂ１，Ｂ２〜Ｂ12、
変圧器Ｔ１，Ｔ２〜Ｔ５、送電線Ｌ１，Ｌ２〜Ｌ11、母
線瞬時電圧低下検出装置Ｓ１によって構成される電力系
統に、送電線に設置された開閉器の入・切状態と変圧器
の有効電力潮流方向（→）が記された模式図として示さ
れている。×印は開閉器母線Ｂ４〜Ｂ９の間の送電線Ｌ
５と母線Ｂ10〜Ｂ11間の送電線Ｌ10の両端が切状態で、
その他の送電線の開閉器は入状態であることを示す。有
効電力の潮流方向（→）は変圧器Ｔ１が母線Ｂ１から母
線Ｂ２、変圧器Ｔ２が母線Ｂ３から母線Ｂ４、変圧器Ｔ
３が母線Ｂ５から母線Ｂ６、変圧器Ｔ４が母線Ｂ７から
母線Ｂ８、変圧器Ｔ５が母線Ｂ９から母線Ｂ10であるこ
とを示す。母線瞬時電圧低下検出装置Ｓ１は母線Ｂ７に
設置され、母線Ｂ７の瞬時電圧低下を検出することを示
している。FIG. 2 is an example of a power system state to which the present invention is applied. The generators G1 to G3, the buses B1 and B2 to B12,
In the power system configured by the transformers T1, T2 to T5, the transmission lines L1, L2 to L11, and the bus instantaneous voltage drop detection device S1, the ON / OFF state of the switch installed on the transmission line and the active power of the transformer. It is shown as a schematic diagram in which the current direction (→) is marked. The X mark indicates the transmission line L between the switch busbars B4 to B9.
5, both ends of the transmission line L10 between the bus 5 and the bus lines B10 to B11 are cut off,
The switches of other transmission lines are in the ON state. The direction of the flow of active power (→) is that the transformer T1 is a bus B1 to a bus B2, the transformer T2 is a bus B3 to a bus B4, and the transformer T is
3 indicates that the busbars B5 to B6, the transformer T4 is a busbar B7 to a busbar B8, and the transformer T5 is a busbar B9 to a busbar B10. The busbar instantaneous voltage drop detection device S1 is installed on the busbar B7 and indicates that the instantaneous voltage drop of the busbar B7 is detected.
【００１３】次に、図３のフローチャートを用いて、図
２の電力系統状態例図に対する瞬時電圧低下影響母線算
出手段25の作用を説明する。ステップＳ51において、初
期化処理として全ブランチと全ノードの処理値を未処理
（例えば０）とする。図２において変圧器Ｔ１，Ｔ２〜
Ｔ５と送電線Ｌ１，Ｌ２〜Ｌ11がブランチであり、母線
Ｂ１，Ｂ２〜Ｂ12がノードである。ステップＳ52におい
て、瞬時電圧低下装置情報の母線情報から検出母線Ｂ７
を抽出して、抽出した母線を目的ノードとする。ステッ
プＳ53において、目的ノードが母線の場合、母線名情報
を瞬時電圧低下影響母線として記憶する。図２の電力系
統状態例図においてはノードは全て母線であるので、ス
テップＳ53において目的ノードとなった母線名情報は瞬
時電圧低下影響母線として記憶される。ステップＳ54に
おいて、目的ノードに接続する全ブランチの中から未処
理なブランチを選び出し、処理値を処理対象（例えば
１）とする。目的ノードＢ７に接続するブランチはＴ
４，Ｌ２，Ｌ８であり、それらを処理対象とする。ステ
ップＳ55において、処理対象ブランチの中から１つを目
的ブランチとし、選択したブランチを処理済（例えば
２）とする。上記処理対象ブランチの中からＴ４を目的
ブランチと選択したとする。処理ステップＳ56におい
て、目的ブランチが変圧器で、かつ有効電力の潮流方向
が目的ノードを起点として正の場合目的ブランチの状態
を入にし、正以外の場合切にする。図２において目的ノ
ードがノードＢ７、目的ブランチがブランチＴ４の時、
ブランチＴ４の有効電力の潮流方向は目的ノードＢ７か
らノードＢ８の方向であるから正であり、目的ブランチ
Ｔ４の状態を入にする。送電線が目的ブランチの場合、
このステップは処理されない。ステップＳ57において、
目的ブランチの状態が入の場合ステップＳ58に進み、目
的ブランチの状態が切の場合ステップＳ59に進む。ブラ
ンチＴ４の状態は入であるのでステップＳ58に進む。ス
テップＳ58において、目的ブランチに接続するノードの
中から未処理なノードを目的ノードとし、そのノードの
処理値を処理済とする。ブランチＴ４に接続する未処理
なノードはノードＢ８であるので、目的ノードをノード
Ｂ８とする。ステップＳ58終了後ステップＳ53の先頭に
戻り、ステップＳ53を行う。ステップＳ59において処理
対象ブランチを検索し、処理対象ブランチはない場合、
瞬時電圧低下影響母線算出手段25の作用が終了する。Next, the operation of the instantaneous voltage drop influence bus calculating means 25 for the power system state example diagram of FIG. 2 will be described with reference to the flowchart of FIG. In step S51, the processing values of all branches and all nodes are set as unprocessed (for example, 0) as the initialization processing. In FIG. 2, transformers T1, T2
T5 and transmission lines L1, L2-L11 are branches, and bus lines B1, B2-B12 are nodes. In step S52, the detected bus B7 is detected from the bus information of the instantaneous voltage drop device information.
Is extracted, and the extracted bus is used as the target node. In step S53, if the target node is a bus, bus name information is stored as an instantaneous voltage drop affecting bus. In the power system state example diagram of FIG. 2, since all the nodes are buses, the bus name information which is the target node in step S53 is stored as an instantaneous voltage drop influence bus. In step S54, an unprocessed branch is selected from all the branches connected to the target node, and the processed value is set as the processing target (for example, 1). The branch connected to the destination node B7 is T
4, L2, L8, which are the processing targets. In step S55, one of the processing target branches is set as the target branch, and the selected branch is set as processed (for example, 2). It is assumed that T4 is selected as the target branch from the processing target branches. In processing step S56, the state of the target branch is set to ON when the target branch is the transformer and the flow direction of active power is positive with the target node as the starting point, and is set to OFF when it is not positive. In FIG. 2, when the target node is the node B7 and the target branch is the branch T4,
The flow direction of the active power of the branch T4 is positive because it is the direction from the target node B7 to the node B8, and the state of the target branch T4 is turned on. If the power line is the destination branch,
This step is not processed. In step S57,
If the state of the target branch is ON, the process proceeds to step S58, and if the state of the target branch is OFF, the process proceeds to step S59. Since the state of the branch T4 is ON, the process proceeds to step S58. In step S58, an unprocessed node among the nodes connected to the target branch is set as the target node, and the processing value of the node is set as processed. Since the unprocessed node connected to the branch T4 is the node B8, the target node is the node B8. After the end of step S58, the process returns to the beginning of step S53, and step S53 is performed. When the processing target branch is searched in step S59 and there is no processing target branch,
The operation of the instantaneous voltage drop influence bus calculating means 25 ends.
【００１４】図２の電力系統状態例図の場合、母線Ｂ
７，Ｂ８，Ｂ11，Ｂ12，Ｂ２，Ｂ９，Ｂ10，Ｂ６が瞬時
電圧低下影響母線に選ばれ、瞬時電圧低下影響母線情報
保存部26に瞬時電圧低下発生時刻情報と共に格納する。In the case of the power system state example diagram of FIG.
7, B8, B11, B12, B2, B9, B10 and B6 are selected as the instantaneous voltage drop affecting busbars and stored in the instantaneous voltage drop affecting busbar information storage unit 26 together with the instantaneous voltage drop occurrence time information.
【００１５】図４は図３のステップＳ56の判定方法の原
理を説明する系統図である。発電機１、送電線１〜送電
線３、変圧器１〜変圧器２、遮断器１〜遮断器９、母線
１〜母線５により構成されていることを示す。FIG. 4 is a system diagram for explaining the principle of the determination method of step S56 of FIG. It is shown that it is composed of a generator 1, a power transmission line 1 to a power transmission line 3, a transformer 1 to a transformer 2, a circuit breaker 1 to a circuit breaker 9, and a bus line 1 to a bus line 5.
【００１６】図５は図４の系統図の等価回路図である。
Ｘs1〜Ｘs3はそれぞれ送電線１〜送電線３のリアクタン
ス、Ｘh1とＸh2はそれぞれ変圧器１と変圧器２のリアク
タンス、Ｖ１〜Ｖ５はそれぞれ母線１〜母線５の電圧で
ある。FIG. 5 is an equivalent circuit diagram of the system diagram of FIG.
X s1 to X s3 are reactances of the transmission lines 1 to 3, X h1 and X h2 are reactances of the transformer 1 and the transformer 2, respectively, and V 1 to V 5 are voltages of the bus lines 1 to 5, respectively.
【００１７】図６は図４の送電線２に落雷等の影響によ
り地落が発生し、遮断器４が高速度再閉路を実施したこ
とを示す系統図である。変圧器２においては一次側（励
磁電流の流れる側）で地落が発生し、変圧器１において
は二次側（二次電流の流れる側）で地落が発生してい
る。一般的に変圧器のリアクタンスは送電線に比較して
１桁以上大きいため、以上に述べた状況下では変圧器１
の一次側（発電機１の接続している側）には事故による
電圧低下の影響がない。逆に変圧器２の二次側には負荷
側であるために事故による電圧低下がそのまま影響する
ことになる。従って、図５の母線電圧Ｖ２，Ｖ３，Ｖ
４，Ｖ５は電圧低下が発生するが、送電線２の地落発生
による母線電圧Ｖ１の低下はないと判断することができ
る。FIG. 6 is a system diagram showing that the circuit breaker 4 has closed the high speed circuit due to the occurrence of a landfall on the transmission line 2 of FIG. In the transformer 2, the ground drop occurs on the primary side (excitation current flowing side), and in the transformer 1 the ground drop occurs on the secondary side (secondary current flowing side). In general, the reactance of a transformer is one digit or more larger than that of a transmission line, so under the conditions described above, the transformer 1
The primary side (the side to which the generator 1 is connected) is not affected by the voltage drop due to the accident. On the contrary, since the secondary side of the transformer 2 is on the load side, the voltage drop due to an accident has a direct effect. Therefore, the bus voltage V2, V3, V of FIG.
It is possible to determine that the voltage of busses V4 and V5 decreases, but that the bus voltage V1 does not decrease due to the occurrence of the landfall of the power transmission line 2.
【００１８】図７は瞬時電圧低下影響母線表示部28に表
示される瞬時電圧低下影響母線の表示例図である。以上
述べたように、本実施例によれば母線Ｂ７の母線瞬時電
圧低下検出装置で瞬時電圧低下を検出した場合、母線Ｂ
７に設置する母線瞬時電圧低下検出装置から受信する瞬
時電圧低下情報と電力系統の接続状態情報と変圧器の有
効電力の潮流方向情報とから母線Ｂ７，Ｂ８，Ｂ11，Ｂ
12，Ｂ２，Ｂ９，Ｂ10，Ｂ６に瞬時電圧低下が発生した
ことがわかる。FIG. 7 is a diagram showing a display example of the instantaneous voltage drop influencing bus bar displayed on the instantaneous voltage drop influencing bus bar display section 28. As described above, according to the present embodiment, when the instantaneous voltage drop detection device for the bus bar B7 detects an instantaneous voltage drop, the bus bar B
Based on the instantaneous voltage drop information received from the bus instantaneous voltage drop detection device installed in 7, the connection state information of the power system, and the flow direction information of the active power of the transformer, the bus lines B7, B8, B11, B
It can be seen that an instantaneous voltage drop occurred on 12, B2, B9, B10 and B6.
【００１９】（他の実施例）また、変圧器毎に一次側と
二次側の情報として電圧階級の情報を持ち、処理ステッ
プＳ56において、目的ブランチが変圧器の場合、その変
圧器の一次側の母線が目的ノードの時に目的ブランチの
状態を入にし、その変圧器の二次側の母線が目的ノード
の時に目的ブランチの状態を切にする判定に置き換える
ことも可能である。ここで一次側の電圧階級は二次側の
電圧階級よりも上位であるものとする。すなわち上位を
電源側、下位を負荷側とする。(Other Embodiment) Further, each transformer has the voltage class information as the information on the primary side and the secondary side, and in the processing step S56, if the target branch is the transformer, the primary side of the transformer. It is also possible to replace with a judgment in which the state of the target branch is turned on when the bus of is the target node and the state of the target branch is turned off when the bus on the secondary side of the transformer is the target node. Here, the voltage class on the primary side is assumed to be higher than the voltage class on the secondary side. That is, the upper side is the power supply side and the lower side is the load side.
【００２０】[0020]
【発明の効果】以上説明したように、本発明によれば母
線瞬時電圧低下検出装置から受信する瞬時電圧低下情報
と電力系統の接続状態情報と変圧器の有効電力の潮流方
向情報とから、瞬時電圧低下発生時の影響範囲を算出及
び提供することができるので、電力系統状態の変化に対
応して母線瞬時電圧低下検出装置が設置されていない母
線に対しても瞬時電圧低下発生の有無がわかり、瞬時電
圧低下発生状況を迅速かつ適切に認識することが可能と
なる。As described above, according to the present invention, the instantaneous voltage drop information received from the bus instantaneous voltage drop detecting device, the connection state information of the power system, and the flow direction information of the active power of the transformer are used to determine the instantaneous value. Since it is possible to calculate and provide the range of influence when a voltage drop occurs, it is possible to determine whether or not an instantaneous voltage drop has occurred even for a bus that does not have a bus instantaneous voltage drop detection device installed in response to changes in the power system state. Therefore, it is possible to quickly and appropriately recognize the instantaneous voltage drop occurrence status.
【図１】本発明による電力系統情報広域ネットワークシ
ステムの一実施例の機能ブロック図。FIG. 1 is a functional block diagram of an embodiment of a power system information wide area network system according to the present invention.
【図２】本発明の適応される電力系統状態例図。FIG. 2 is a diagram showing a state example of an electric power system to which the present invention is applied.
【図３】瞬時電圧低下影響母線算出手段25の作用を説明
するフローチャート。FIG. 3 is a flowchart for explaining the operation of the instantaneous voltage drop influence bus calculating means 25.
【図４】図３のステップＳ56の判定方法の原理を説明す
る系統図。4 is a system diagram illustrating the principle of the determination method of step S56 in FIG.
【図５】図４の系統図の等価回路図。5 is an equivalent circuit diagram of the system diagram of FIG.
【図６】図４の送電線２に落雷等の影響により地落が発
生したことを示す系統図。FIG. 6 is a system diagram showing that a landfall has occurred on the power transmission line 2 of FIG. 4 due to a lightning strike or the like.
【図７】瞬時電圧低下影響母線表示部28に表示される瞬
時電圧低下影響母線の表示例図。FIG. 7 is a diagram showing a display example of an instantaneous voltage drop affecting bus bar displayed on an instantaneous voltage drop affecting bus bar display unit 28.
１…電力系統 ２…電力系統情報の広域ネットワークシステム 11…広域ネットワーク 12…母線瞬時電圧低下検出装置 21…電力系統情報収集手段 22…電力系統状態情報保存手段 23…電力系統状態情報保存部 24…母線瞬時電圧低下情報受信手段 25…瞬時電圧低下影響母線算出手段 26…瞬時電圧低下影響母線情報保存部 27…瞬時電圧低下影響母線表示手段 28…瞬時電圧低下影響母線表示部 1 ... Power system 2 ... Wide area network system of power system information 11 ... Wide area network 12 ... Bus instantaneous voltage drop detection device 21 ... Power system information collecting means 22 ... Power system state information storage means 23 ... Power system state information storage unit 24 ... Bus instantaneous voltage drop information receiving means 25 ... Instantaneous voltage drop influence bus calculating means 26 ... Instantaneous voltage drop influence bus bar information storage 27 ... Instantaneous voltage drop influence bus bar display means 28 ... Instantaneous voltage drop influence bus bar display section
Claims (3)
母線瞬時電圧低下検出装置と、その装置が収集及び編集
した情報を受信したマンマシンインタフェース装置へ情
報を出力する情報システムにおいて、母線瞬時電圧低下
検出装置から受信する瞬時電圧低下情報と電力系統の接
続状態情報と変圧器を流れる有効電力の潮流方向情報と
から瞬時電圧低下発生の影響範囲を算出し、出力するこ
とを特徴とする電力系統情報の広域ネットワークシステ
ム。1. A bus instantaneous voltage drop detecting device for detecting an instantaneous voltage drop of a power system bus, and an information system for outputting information to a man-machine interface device receiving the information collected and edited by the device. A power system characterized by calculating and outputting the range of influence of the occurrence of an instantaneous voltage drop from the instantaneous voltage drop information received from the voltage drop detection device, the connection state information of the power system, and the flow direction information of the active power flowing through the transformer. Wide area network system of information.
統の接続状態情報と送電線を流れる有効電力の潮流値情
報とから変圧器を流れる有効電力の潮流方向を求めるこ
とを特徴とする電力系統情報の広域ネットワークシステ
ム。2. The electric power according to claim 1, wherein the power flow direction of the active power flowing through the transformer is obtained from the connection state information of the power system and the power flow value information of the active power flowing through the power transmission line. Wide area network system of system information.
る母線瞬時電圧低下検出装置と、その装置が収集及び編
集した情報を受信したマンマシンインタフェース装置へ
情報を出力する情報システムにおいて、母線瞬時電圧低
下検出装置から受信する瞬時電圧低下情報と電力系統の
接続状態情報と変圧器の電力階級情報とから瞬時電圧低
下発生の影響範囲を算出し、出力することを特徴とする
電力系統情報の広域ネットワークシステム。3. An instantaneous bus bar voltage drop detecting device for detecting an instantaneous voltage drop of a bus bar of a power system, and an information system for outputting information to a man-machine interface device which has received the information collected and edited by the device. Wide range of power system information characterized by calculating and outputting the range of influence of instantaneous voltage drop occurrence from the instantaneous voltage drop information received from the voltage drop detection device, the connection status information of the power system, and the power class information of the transformer. Network system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5303624A JPH07163068A (en) | 1993-12-03 | 1993-12-03 | Wide area network system for electric power system information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5303624A JPH07163068A (en) | 1993-12-03 | 1993-12-03 | Wide area network system for electric power system information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07163068A true JPH07163068A (en) | 1995-06-23 |
Family
ID=17923228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5303624A Pending JPH07163068A (en) | 1993-12-03 | 1993-12-03 | Wide area network system for electric power system information |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07163068A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009168604A (en) * | 2008-01-16 | 2009-07-30 | Enesaabu Kk | Momentary power failure prediction device and system |
| CN109066978A (en) * | 2018-08-10 | 2018-12-21 | 大连华奇电力自动化有限公司 | A kind of quasi- screen system of 10kV supervisory control of substation pattern |
| CN110161430A (en) * | 2019-05-31 | 2019-08-23 | 苏州迅鹏仪器仪表有限公司 | DC power supply intelligent comprehensive monitoring device |
-
1993
- 1993-12-03 JP JP5303624A patent/JPH07163068A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009168604A (en) * | 2008-01-16 | 2009-07-30 | Enesaabu Kk | Momentary power failure prediction device and system |
| CN109066978A (en) * | 2018-08-10 | 2018-12-21 | 大连华奇电力自动化有限公司 | A kind of quasi- screen system of 10kV supervisory control of substation pattern |
| CN110161430A (en) * | 2019-05-31 | 2019-08-23 | 苏州迅鹏仪器仪表有限公司 | DC power supply intelligent comprehensive monitoring device |
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