JPH05126894A - Fault point locating method for transmission line - Google Patents
Fault point locating method for transmission lineInfo
- Publication number
- JPH05126894A JPH05126894A JP31368491A JP31368491A JPH05126894A JP H05126894 A JPH05126894 A JP H05126894A JP 31368491 A JP31368491 A JP 31368491A JP 31368491 A JP31368491 A JP 31368491A JP H05126894 A JPH05126894 A JP H05126894A
- Authority
- JP
- Japan
- Prior art keywords
- transmission line
- fault
- neurocomputer
- fault point
- data
- 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
Links
Landscapes
- Locating Faults (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は送電線事故点の標定方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of locating transmission line accident points.
【０００２】[0002]
【従来の技術】架空送電線路に地絡事故等が発生した場
合、この事故発生箇所を早期に発見し復旧させ、電力の
安定した供給を図る必要がある。このため従来は、以下
の方法により事故発生箇所を標定していた。 （１）送電線の送受端である変電所に設置した事故点標
定装置により電圧・電流を計測し、回路方程式を解いて
事故点を標定する方法。 （２）事故発生時に事故点で発生するサージ波の伝達時
間から事故点を標定する方法。 （３）事故発生時に送受端からパルスを発射し、事故点
のインピーダンスの変化点でこのパルスが反射し戻って
来るまでの時間から事故点を標定する方法。2. Description of the Related Art When a ground fault or the like occurs in an overhead power transmission line, it is necessary to find and restore the location of the accident early to ensure a stable power supply. For this reason, conventionally, the location of the accident has been located by the following method. (1) A method of locating the fault point by measuring the voltage and current with a fault point locating device installed at the substation, which is the transmitting and receiving end of the transmission line, and solving the circuit equation. (2) A method of locating the accident point from the propagation time of the surge wave generated at the accident point when the accident occurs. (3) A method of emitting a pulse from the transmitting / receiving end when an accident occurs, and locating the accident point from the time until the pulse is reflected back at the point where the impedance of the accident point changes.
【０００３】[0003]
【課題を解決するための手段】しかしながら、前述した
（１）の方法によると、鉄塔の接地抵抗や線路インピー
ダンスを細かく計算する必要があり、また、（２）、
（３）のサージ波やパルスを利用した方法においては、
分岐の多い送電線路では標定精度が悪く、事故点を的確
に標定し得ない。さらに、上記各方法においては、繰り
返し起こる事故に対し、学習能力がないという問題点が
あった。However, according to the above method (1), it is necessary to calculate the ground resistance and line impedance of the steel tower in detail, and (2),
In the method using the surge wave or pulse of (3),
In a transmission line with many branches, the location accuracy is poor and the location of the accident cannot be located accurately. Further, each of the above methods has a problem in that it has no learning ability for repeated accidents.
【０００４】本発明は上記問題点に鑑みなされたもの
で、架空送電線路に地絡事故等が発生した場合、この事
故点を瞬時に標定することができ、しかも、学習能力を
有する送電線事故点の標定方法を提供することを目的と
する。The present invention has been made in view of the above problems. When a ground fault or the like occurs in an overhead power transmission line, the fault point can be instantly located and the power transmission line fault has a learning ability. The purpose is to provide a method for locating points.
【０００５】[0005]
【課題を解決するための手段】本発明は、標定しようと
する架空送電線路の任意の箇所の電圧・電流を計測する
センサの信号を、予めＥＭＴＰ解析（過渡応答解析）し
た送電線路の事故データを学習データとして入力したニ
ューロコンピュータに取り込んで送電線の事故点を標定
する方法により、従来の問題点を解消したものである。DISCLOSURE OF THE INVENTION According to the present invention, a signal of a sensor for measuring voltage / current at an arbitrary position of an overhead power transmission line to be located is subjected to EMTP analysis (transient response analysis) in advance, and transmission line fault data is obtained. The conventional problem is solved by a method of locating the fault point of the power transmission line by importing into the neuro computer input as learning data.
【０００６】[0006]
【作用】ニューロコンピュータには予め対象とする送電
線路の事故モデルとしてＥＭＴＰ解析（過渡応答解析）
した事故発生モデルデータを学習データとして入力して
おく。ＥＭＴＰ解析（過渡応答解析）によるデータの学
習により、ニューロコンピュータはＥＭＴＰと同等の解
析・標定能力を持つ。また、標定速度はニューロコンピ
ュータの原理がパターン処理であることから非常に高速
である。従って、架空送電線路に地絡事故等が発生した
場合、電圧・電流センサからの信号の変化をニューロコ
ンピュータが学習データにより瞬時に解析し、その事故
発生箇所をパターンマッチ法で瞬時に推論し表示する。
さらに、学習データと実際の事故点とが異なる場合に
は、新たなデータを逐次ニューロコンピュータに学習さ
せることにより標定精度は著しく向上し、複雑な送電線
路であっても事故発生箇所を迅速、且つ、的確に標定す
る。[Operation] EMTP analysis (transient response analysis) as a fault model of the target transmission line in advance on the neurocomputer
The accident occurrence model data is input as learning data. By learning the data by EMTP analysis (transient response analysis), the neurocomputer has the same analysis / orientation ability as EMTP. Moreover, the orientation speed is extremely high because the principle of the neurocomputer is pattern processing. Therefore, when a ground fault occurs on the overhead power transmission line, the neurocomputer instantly analyzes the changes in the signal from the voltage / current sensor using the learning data, and the accident occurrence location is instantly inferred by the pattern matching method and displayed. To do.
Further, when the learning data and the actual accident point are different, the localization accuracy is remarkably improved by sequentially learning new data in the neurocomputer, and even if the transmission line is complicated, the accident location can be quickly and Accurately orient.
【０００７】[0007]
【実施例】以下、本発明方法を図面により説明する。図
１は本発明方法の一実施例を示す説明図で、図において
１は架空送電線路、２は架空送電線路１の任意の箇所の
電圧・電流を計測する電圧・電流センサで、該電圧・電
流センサ２からの信号は後述するニューロコンピュータ
３に取り込まれる。３はニューロコンピュータで、該ニ
ューロコンピュータ３には、予め、対象とする送電線路
の事故時の電圧・電流の大きさ、位相と事故点までの距
離等を、ＥＭＴＰ解析（過渡応答解析）したモデルデー
タを学習データとして入力しておく。この段階でニュー
ロコンピュータ３はＥＭＴＰの解析能力と同等の解析能
力を持つが、ニューロコンピュータ３により事故点まで
の距離を求める方法は、ニューロコンピュータ３の動作
原理であるパターンマッチ法で推論される。The method of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of the method of the present invention. In the figure, 1 is an overhead power transmission line, 2 is a voltage / current sensor for measuring the voltage / current at an arbitrary point of the overhead power transmission line 1, The signal from the current sensor 2 is taken into a neuro computer 3 described later. Reference numeral 3 denotes a neurocomputer, and the neurocomputer 3 is a model obtained by performing EMTP analysis (transient response analysis) on the magnitude of voltage / current, phase and distance to the fault point of the target transmission line in advance. Input the data as learning data. At this stage, the neuro computer 3 has an analysis capability equivalent to that of the EMTP, but the method of obtaining the distance to the accident point by the neuro computer 3 is inferred by the pattern matching method which is the operation principle of the neuro computer 3.
【０００８】而して、架空送電線路において地絡事故等
が発生した場合、電圧・電流センサ２からの信号の変化
をニューロコンピュータ３が解析し、その事故発生箇所
をパターンマッチ法で瞬時に推論し、表示装置４により
その位置を的確に標定する。When a ground fault or the like occurs in the overhead power transmission line, the neurocomputer 3 analyzes the change in the signal from the voltage / current sensor 2 and instantly infers the location of the accident by the pattern matching method. Then, the display device 4 accurately locates the position.
【０００９】また、ＥＭＴＰ解析（過渡応答解析）によ
り解析したモデルデータと、対象とする送電線路で実際
に発生した地絡事故等の発生箇所とが異なる場合には、
この新データをニューロコンピュータ３に逐次学習させ
ることにより標定精度は著しく向上し、複雑な送電線路
であっても事故点を瞬時に、且つ、的確に標定すること
ができる。Further, when the model data analyzed by the EMTP analysis (transient response analysis) is different from the place where the ground fault accident or the like actually occurred in the target transmission line,
Locating accuracy is remarkably improved by sequentially learning the new data in the neuro computer 3, and the fault point can be instantly and accurately located even in a complicated power transmission line.
【００１０】[0010]
【発明の効果】本発明方法によれば上述のように、対象
とする架空送電線路における地絡事故等の事故点を瞬時
に、且つ、的確に標定することができる。また、新たに
発生した架空送電線路の事故をニューロコンピュータ３
に逐次学習させることにより標定精度は著しく向上し、
複雑な送電線路であっても事故点を瞬時に、且つ、的確
に標定し得るという優れた利点がある。As described above, according to the method of the present invention, a fault point such as a ground fault in the target overhead power transmission line can be instantly and accurately located. In addition, a new accident of the overhead transmission line caused by the neurocomputer 3
The orientation accuracy is significantly improved by sequentially learning
Even with a complicated power transmission line, there is an excellent advantage that an accident point can be instantly and accurately located.
【００１１】[0011]
【図１】本発明方法の一実施例を示す説明図FIG. 1 is an explanatory view showing an embodiment of the method of the present invention.
１ 架空送電線路 ２ 電
圧・電流センサ ３ ニューロコンピュータ ４ 表
示装置1 Overhead transmission line 2 Voltage / current sensor 3 Neurocomputer 4 Display device
Claims (1)
箇所の電圧・電流を計測するセンサからの信号を、予め
ＥＭＴＰ解析（過渡応答解析）した送電線路の事故デー
タを学習データとして入力したニューロコンピュータに
取り込み、送電線路の事故点を標定することを特徴とす
る送電線事故点の標定方法。1. A neuro in which accident data of a power transmission line, which is obtained by performing EMTP analysis (transient response analysis) on a signal from a sensor for measuring a voltage / current at an arbitrary position of an overhead power transmission line to be located, is input as learning data. A method for locating transmission line faults, which is characterized in that it is incorporated into a computer and the fault point of the transmission line is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31368491A JPH05126894A (en) | 1991-10-31 | 1991-10-31 | Fault point locating method for transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31368491A JPH05126894A (en) | 1991-10-31 | 1991-10-31 | Fault point locating method for transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05126894A true JPH05126894A (en) | 1993-05-21 |
Family
ID=18044272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31368491A Pending JPH05126894A (en) | 1991-10-31 | 1991-10-31 | Fault point locating method for transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05126894A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621449A (en) * | 2012-03-16 | 2012-08-01 | 河南理工大学 | Single phase ground fault section locating method in small current grounding system |
| CN102768324A (en) * | 2012-04-10 | 2012-11-07 | 河南理工大学 | Single-phase ground fault section positioning method for low-current grounding system |
| CN105974274A (en) * | 2016-07-26 | 2016-09-28 | 广东电网有限责任公司电力科学研究院 | Power transmission line fault location method and system |
-
1991
- 1991-10-31 JP JP31368491A patent/JPH05126894A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621449A (en) * | 2012-03-16 | 2012-08-01 | 河南理工大学 | Single phase ground fault section locating method in small current grounding system |
| CN102768324A (en) * | 2012-04-10 | 2012-11-07 | 河南理工大学 | Single-phase ground fault section positioning method for low-current grounding system |
| CN105974274A (en) * | 2016-07-26 | 2016-09-28 | 广东电网有限责任公司电力科学研究院 | Power transmission line fault location method and system |
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