JP2721194B2 - Power switching control method for power distribution lines - Google Patents
Power switching control method for power distribution linesInfo
- Publication number
- JP2721194B2 JP2721194B2 JP63228494A JP22849488A JP2721194B2 JP 2721194 B2 JP2721194 B2 JP 2721194B2 JP 63228494 A JP63228494 A JP 63228494A JP 22849488 A JP22849488 A JP 22849488A JP 2721194 B2 JP2721194 B2 JP 2721194B2
- Authority
- JP
- Japan
- Prior art keywords
- power
- information transmission
- line
- transmission line
- power distribution
- 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.)
- Expired - Fee Related
Links
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は電力配電線に接続された電力開閉器を制御す
る電力配電線の電力開閉制御方式に関する。Description: TECHNICAL FIELD The present invention relates to a power switching control method of a power distribution line for controlling a power switch connected to a power distribution line.
（従来の技術） 通常、第９図に示すように、電力配電線13には分岐が
容易に出来ることからマルチドロップ方式で多数の電力
子局２が結合されており、電力が配電変電所19から電力
配電線13を介して各電力子局２へ送電される。電力配電
線13には、多数の電力子局２へ送電される。電力配電線
13には、多数の電力子局２に対応して多数の電力開閉器
14が直列に介在配置されている。各電力配電線13に沿っ
て情報伝送線路18が布設され、制御親局１から矢印15で
示すように対応する電力開閉器14の開閉を制御する指令
が各電力子局２に送られる。符号11は変圧器であり、符
号12は電力配電線遮断器12である。電力配電線13に絶縁
破壊、断線故障等が発生した場合には配電区間の電力開
閉器14を開閉制御して電力電線13を修理する必要があ
る。従来、事故が発生した配電区間を特定するために制
御親局１が常時異常を監視し検出している。第10図に示
すように、従来は情報伝送線路18は制御信号の歪みを避
けるために２本の線路から成り、本線16aと予備線16bが
電力子局２に接続されている。各電力子局２は、通常使
用している情報伝送線路18を本線とし、異常時に切替え
て使用する情報伝送線路18を予備線として夫々使用し、
異常を検知すると切替器17により情報源を切替える操作
を行なっている。(Prior Art) Normally, as shown in FIG. 9, since a power distribution line 13 can be easily branched, a large number of power slave stations 2 are connected in a multi-drop manner, and power is distributed to a distribution substation 19. Is transmitted to each power substation 2 via the power distribution line 13. Power is transmitted to a number of power slave stations 2 on the power distribution line 13. Power distribution lines
13 has a number of power switches corresponding to a number of power slave stations 2.
14 are arranged in series. An information transmission line 18 is laid along each power distribution line 13, and a command for controlling opening and closing of the corresponding power switch 14 is sent from the control master station 1 to each power slave station 2 as indicated by an arrow 15. Reference numeral 11 denotes a transformer, and reference numeral 12 denotes a power distribution line breaker 12. When insulation breakdown, disconnection failure, or the like occurs in the power distribution line 13, it is necessary to control the opening and closing of the power switch 14 in the distribution section to repair the power line 13. Conventionally, the control master station 1 constantly monitors and detects abnormalities in order to identify a power distribution section in which an accident has occurred. As shown in FIG. 10, conventionally, the information transmission line 18 is composed of two lines in order to avoid distortion of the control signal, and the main line 16a and the backup line 16b are connected to the power slave station 2. Each power slave station 2 uses the information transmission line 18 that is normally used as a main line, and uses the information transmission line 18 that is switched to be used at the time of abnormality as a backup line,
When an abnormality is detected, an operation of switching the information source by the switch 17 is performed.
（発明が解決しようとする課題） しかしながら、従来の電力配線の電力開閉器を制御す
る方式では、情報源である制御親局１との接続を本線側
から予備線側に切替え操作する必要があるために、異常
監視装置、異常検出装置及び切替装置が特別に必要とさ
れそのため技術的に繁雑でありまたコストがアップする
という問題点がある。更に、情報伝送線路18が絶縁破
壊、断線故障等を起こすと、一般に電力子局２がトリー
状に情報伝送線路18に接続されているためにその情報伝
送線路18に接続されている殆ど全部の電力子局２が動作
不能となるという問題点がある。例えば、第11図に示す
ように、情報伝送線路18の線路インピーダンスが割合大
きい場合には線路長が長ければ線路自体のインピーダン
スで制御信号の供給電位を分担することから、Ｐ点で短
絡事故が発生すると供給電圧はＰ点に向けて徐々に下降
し、＃２の電力子局２以降の電力子局２が動作不能とな
る。このため、事故地点前後数kmが制御親局１に対して
不感地帯となる。(Problems to be Solved by the Invention) However, in the conventional method of controlling the power switch of the power wiring, it is necessary to switch the connection with the control master station 1 as the information source from the main line to the backup line. Therefore, an abnormality monitoring device, an abnormality detection device, and a switching device are specially required, so that there is a problem that the technology is complicated and the cost increases. Further, when the information transmission line 18 causes insulation breakdown, disconnection failure, etc., almost all of the power slave stations 2 connected to the information transmission line 18 are generally connected to the information transmission line 18 in a tree shape. There is a problem that the power slave station 2 becomes inoperable. For example, as shown in FIG. 11, when the line impedance of the information transmission line 18 is large, if the line length is long, the supply potential of the control signal is shared by the impedance of the line itself. When this occurs, the supply voltage gradually decreases toward point P, and power slave stations 2 after power slave station # 2 become inoperable. For this reason, several kilometers before and after the accident point become a dead zone for the control master station 1.
本発明は、上記事情に鑑みてなされたものであり、事
故が発生した情報伝送線路に接続されている電力子局が
全て動作不能に陥ることを防止すると共に異常監視装置
等の諸機器を使用せずに電力配電線の電力開閉器を制御
する電力配電線の電力開閉制御方式を提供することを目
的とする。The present invention has been made in view of the above circumstances, and prevents all power slave stations connected to an information transmission line in which an accident has occurred from becoming inoperable, and uses various devices such as an abnormality monitoring device. An object of the present invention is to provide a power switching control method of a power distribution line that controls a power switch of the power distribution line without performing the above operation.
（課題を解決するための手段） 上記目的を達成するために、本発明によれば、電力配
電線に複数の電力開閉器が順次直列に介在配置され、前
記電力配電線に沿って情報伝送線路が布設され、該情報
伝送線路に前記複数の電力開閉器の夫々を開閉制御する
複数の電力子局及び対応する前記電力開閉器を開閉制御
する指令を各電力子局に与える制御親局が接続されて構
成された電力配電線電力開閉制御系統が複数組存在する
電力配電線の電力開閉制御方式において、前記情報伝送
線路が閉回路をなすように前記制御親局に接続され、前
記制御親局が閉回路の双方向に制御信号を送出する電力
配電線の電力開閉制御方式が提供され、また１系統の前
記情報伝送線路が他系統の前記情報伝送線路と閉回路と
なるように接続されている電力配電線の電力開閉制御方
式が提供され、更に、前記情報伝送線路に直列に複数の
情報線路開閉器が介在配置され、該情報線路開閉器の夫
々に情報開閉制御局が接続されている電力配電線の電力
開閉制御方式が提供される。(Means for Solving the Problems) In order to achieve the above object, according to the present invention, a plurality of power switches are sequentially arranged in series on a power distribution line, and an information transmission line is arranged along the power distribution line. Are connected to the information transmission line, a plurality of power slave stations for controlling the opening and closing of each of the plurality of power switches, and a control master station for giving a command for controlling the opening and closing of the corresponding power switch to each power slave station. In a power distribution line power switching control system in which a plurality of sets of power distribution line power switching control systems are configured and configured, the information transmission line is connected to the control master station so as to form a closed circuit, the control master station Provides a power switching control method of a power distribution line for transmitting a control signal bidirectionally in a closed circuit, and wherein one information transmission line is connected to the other information transmission line in a closed circuit. Power distribution line power A switching control system is provided, and a plurality of information line switches are interposed in series with the information transmission line, and power switching of a power distribution line in which an information switching control station is connected to each of the information line switches. A control scheme is provided.
（作用） 情報伝送線路を制御親局に対して閉回路に構成し、制
御親局から閉回路の双方向に制御信号を送出し、情報伝
送線路の断線又は接続不良等の際にも各電力子局の情報
の遮断を防止する。(Operation) The information transmission line is configured as a closed circuit with respect to the control master station, and a control signal is transmitted from the control master station in both directions of the closed circuit. Prevent interception of slave station information.
（実施例） 以下、本発明の実施例を添付図面に基づいて詳細に説
明する。Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１図は本発明の電力配電線の電力開閉制御方式の一
配電線電力開閉制御系統の一実施例の概略構成図であ
る。情報伝送線路３は制御親局１に対してループ状につ
まり閉回路をなすように構成されている。情報伝送線路
３には制御親局１の指令に基づいて担当の電力開閉器を
開閉制御する複数の電力子局２（＃１、＃２、……＃
ｎ）がマルチドロップ方式で接続されている。情報伝送
線路３は通常平衡型ペアケーブル配線が使用される。制
御親局１は、矢印4a及び4bで示すように、情報伝送線路
３の双方向に制御信号を送出するように構成されてい
る。電力子局２の入力インピーダンスは線路インピーダ
ンスに比べて十分に高く電力子局２の情報取込口におい
て前述の双方向に配分された制御信号はメタルケーブル
で圧縮接続、ハンダ付等によりソリッドボンドされてい
る。従って、各電力子局２は双方向から同じ制御親局１
からの制御信号を受信する。また、情報伝送線路３は、
制御親局１から各電力子局２に達する２つの制御信号の
伝送時間差が、使用する伝送速度の１ビットのオン・オ
フ伝送に要する時間の1/2より小さくなるように、好ま
しくは1/4より小さくなるようにループネットワークを
構成する。FIG. 1 is a schematic configuration diagram of one embodiment of a distribution line power switching control system of a power distribution line power switching control system according to the present invention. The information transmission line 3 is configured to form a loop, that is, a closed circuit with respect to the control master station 1. The information transmission line 3 includes a plurality of power slave stations 2 (# 1, # 2,..., #) That control opening and closing of a power switch in charge based on a command from the control master station 1.
n) are connected in a multi-drop manner. The information transmission line 3 is usually a balanced pair cable wiring. The control master station 1 is configured to transmit a control signal in both directions of the information transmission line 3, as indicated by arrows 4a and 4b. The input impedance of the power slave station 2 is sufficiently higher than the line impedance, and the above-mentioned control signal distributed bidirectionally at the information intake of the power slave station 2 is solid-bonded by compression connection, soldering, or the like with a metal cable. ing. Therefore, each power slave station 2 has the same control master station 1 from both directions.
Receiving the control signal. The information transmission line 3 is
Preferably, the transmission time difference between the two control signals from the control master station 1 to each power slave station 2 is smaller than 1/2 of the time required for on / off transmission of one bit of the transmission speed to be used. Configure the loop network to be less than 4.
第２図は本発明の電力配電線の電力開閉制御方式の一
配電線電力開閉制御系統の別の実施例の概略構成図であ
る。この実施例では、各電力子局２は制御親局１に接続
された２本の情報伝送線路５に対して梯子状に閉ループ
を成して接続されている。FIG. 2 is a schematic configuration diagram of another embodiment of a distribution line power switching control system of the power distribution line power switching control system of the present invention. In this embodiment, each power slave station 2 is connected to two information transmission lines 5 connected to the control master station 1 in a ladder-like closed loop.
第３図は第１図の本発明の実施例を詳細に示すブロッ
ク回路図である。配電変電所の変圧器11に並列に複数の
電力配電線13が夫々電力配電線遮断器12を介して接続さ
れている。電力配電線13には多数の電力子局２（＃１、
＃２、……＃ｎ）に夫々対応して多数の電力開閉器14が
直列に介在配置されている。情報伝送線路３は各系統の
電力配電線13に沿って布設され、各電力子局２にメタル
ケーブル、メタル線でソリッドボンドされておりかつ制
御親局１に対して閉回路を構成している。この実施例で
は、一系統の情報伝送線路が他系統の情報伝送線路と閉
回路をなすように接続されている。情報伝送線路３には
所定区間毎に、開閉スイッチ7aと情報開閉制御局7bとを
有する情報線路開閉器７が介在配置されている。符号10
は遮断器である。FIG. 3 is a block circuit diagram showing the embodiment of the present invention of FIG. 1 in detail. A plurality of power distribution lines 13 are connected in parallel to a transformer 11 of the distribution substation via power distribution line breakers 12, respectively. The power distribution line 13 has a number of power slave stations 2 (# 1,
A number of power switches 14 are arranged in series corresponding to # 2,... #N). The information transmission line 3 is laid along the power distribution line 13 of each system, is solid-bonded to each power slave station 2 with a metal cable and a metal wire, and forms a closed circuit with respect to the control master station 1. . In this embodiment, one information transmission line is connected to another information transmission line so as to form a closed circuit. An information line switch 7 having an open / close switch 7a and an information open / close control station 7b is disposed on the information transmission line 3 for each predetermined section. Code 10
Is a circuit breaker.
第４図に示すように、同一の制御親局１から別の情報
伝送線路３に矢印4a及び4bで示すように双方向に送出さ
れた制御信号8a、8bの速さｖは大体ｖ＝200m/μｓ程度
であるために電力配電線13の線路長が10〜20Kmの範囲で
は各電力子局２に50〜100μｓの所要時間で到達する。
尚、制御親局１から各電力子局２に対する距離差がある
場合には、遠方側の電力子局２の内部インピーダンスが
高くなりエネルギが小さく、そのため制御親局１に近い
電力子局２の方が優勢である。電力子局２の情報は開閉
操作等の性質から数百bit/sec〜1200bit/sec程度で通常
の機能が十分に満足される。即ち、１ビットのオン・オ
フ情報は周期830μｓ（速度1200bit/secの場合）の半分
つまり830/2＝415μｓだけ接続すればよい。また、第５
図（Ａ）に示すように、電力子局２は制御信号8aの電圧
レベルが一定の信号検知レベルVt以上あれば第５図
（Ｂ）に示すようにオン・オフ信号として検知出来る。
このように、電力子局２の情報が２方向から来ても電力
子局２の情報取込は十分に行なうことができ、情報伝送
線路３がソリッドボンドされて電力子局２に入力されて
も信号の立上がりあるいは立下がり時間が第６図（Ｂ）
に示すようにジッタの如く多少前後に時間τで変動して
も電力子局２の信号の検出に殆ど影響しないとみること
が出来る。As shown in FIG. 4, the speed v of the control signals 8a and 8b transmitted bidirectionally from the same control master station 1 to another information transmission line 3 as indicated by arrows 4a and 4b is approximately v = 200 m. Since the length of the power distribution line 13 is in a range of 10 to 20 km, the power distribution line 13 reaches each power slave station 2 in a required time of 50 to 100 μs.
When there is a distance difference between the control master station 1 and each power slave station 2, the internal impedance of the power slave station 2 on the far side becomes high and the energy is small. Is dominant. The information of the power slave station 2 satisfies the normal function sufficiently at about several hundred bits / sec to 1200 bit / sec due to the nature of the switching operation and the like. That is, 1-bit ON / OFF information may be connected only for half of the period 830 μs (when the speed is 1200 bit / sec), that is, 830/2 = 415 μs. In addition, the fifth
As shown in FIG. 5A, if the voltage level of the control signal 8a is equal to or higher than a predetermined signal detection level Vt, the power slave station 2 can detect the power on / off signal as shown in FIG. 5B.
Thus, even if the information of the power slave station 2 comes from two directions, the information of the power slave station 2 can be sufficiently taken in, and the information transmission line 3 is solid-bonded and input to the power slave station 2. Figure 6 (B) shows the rise or fall time of the signal.
It can be seen that even if the signal fluctuates a little before and after the time τ like jitter, the signal detection of the power slave station 2 has almost no effect.
次に、第３図、第７図及び第８図を参照して本発明の
電力配線線の電力開閉制御方式の作用について説明す
る。情報伝送線路３として0.9φmmの平衡型ペアケーブ
ルを用いた場合には線路定数は線路インピーダンスZl＝
Ｒ＋1/jωＣ（Ω/Km）、抵抗Ｒ＝53Ω/Km、容量Ｃ＝50
×10-9F/Kmと近似出来る。使用周波数はｆ＝1,000Hz〜
数KHz程度が多く、線路特性インピーダンスは600Ω程度
である。従って、線路長ｌがｌ＝数百ｍ〜1Km程度では
情報伝送線路３は十分にインピーダンスを有し、この線
路長ｌより先で絶縁破壊等で線路が短絡されても高いイ
ンピーダンスとみることが出来る。つまり、第７図
（Ａ）に示すように、電源９（電圧V0）の内部インピー
ダンスZinと線路側インピーダンスＺとの分担した電圧V
lが線路入口に加わり、その後、第７図（Ｂ）に示すよ
うに線路長さＬに応じてこの電圧Vlを分担する。Next, the operation of the power switching control method for the power wiring line of the present invention will be described with reference to FIG. 3, FIG. 7, and FIG. When a balanced pair cable of 0.9 mm is used as the information transmission line 3, the line constant is the line impedance Zl =
R + 1 / jωC (Ω / Km), resistance R = 53Ω / Km, capacitance C = 50
It can be approximated to × 10 -9 F / Km. Use frequency f = 1,000Hz ~
Many are about several KHz, and the line characteristic impedance is about 600Ω. Therefore, when the line length l is about l = several hundreds of meters to 1 km, the information transmission line 3 has a sufficient impedance. Even if the line is short-circuited due to dielectric breakdown or the like before the line length l, it can be regarded as high impedance. I can do it. That is, as shown in FIG. 7 (A), a shared voltage V between the internal impedance Z in of the power supply 9 (voltage V 0 ) and the line side impedance Z is obtained.
l is added to the line entrance, and then shares this voltage Vl according to the line length L as shown in FIG. 7 (B).
本発明では制御親局１から情報伝送線路３の双方向に
制御信号が電力子局２へ向けて送出されていることか
ら、第３図の点Ｐで短絡事故が発生しても、例えば第８
図に示すように＃２、＃３及び＃４の電力子局２が動作
不能になるだけであり、短絡事故点Ｐよりも遠方の＃
５、＃６、…＃ｎの電力子局２は動作可能である。信号
検知レベルVtよりも制御親局１からの供給電圧が低いと
ころが不感帯となる。線路長ｌ＝10Kmの情報伝送線路３
で実際に確認したところ電力子局２は十分に動作した。In the present invention, since a control signal is transmitted from the control master station 1 to the power slave station 2 in both directions of the information transmission line 3, even if a short circuit accident occurs at the point P in FIG. 8
As shown in the figure, only the power slave stations 2 of # 2, # 3 and # 4 become inoperable, and the # 2 remote from the short-circuit fault point P only becomes inoperable.
.., #N are operable. The dead zone is where the supply voltage from the control master station 1 is lower than the signal detection level Vt. Information transmission line 3 with line length l = 10km
As a result of actual confirmation, the power slave station 2 operated sufficiently.
不感帯区間を短縮するには、第３図に示す情報線路開
閉器７を使用する。情報伝送線路３に絶縁破壊等の事故
が発生し電力子局２が動作しなくなると、制御親局１が
ボーリングにより各電力子局２を順次点呼する。応答し
ない電力子局２があるのでその系統の全ての電力子局２
を点呼して不応答リストを作成する。まず、この不応答
リストから情報伝送線路３がどの区間で不応答か、つま
り不感帯がどの位か検定する。次に、特定した不応答区
間の中心部の情報線路開閉器７を開放すれば、事故点が
１ヶ所であれば右又は左方の一方の電力子局２が正常で
他方が不応答となる。更に、この不応答区間のうちの中
心部の情報線路開閉器７を開放し、前述と同様にして次
々に区間を狭めて行けば最小の不応答区間を特定するこ
とができる。In order to shorten the dead zone, an information line switch 7 shown in FIG. 3 is used. When an accident such as insulation breakdown occurs in the information transmission line 3 and the power slave station 2 stops operating, the control master station 1 sequentially calls each power slave station 2 by boring. Since there is a power slave station 2 that does not respond, all power slave stations 2 of that system
To create a non-response list. First, it is determined from this unresponsiveness list which section of the information transmission line 3 is unresponsive, that is, how much the dead zone is. Next, when the information line switch 7 at the center of the specified non-response section is opened, if one accident point is present, one of the right or left power slave stations 2 is normal and the other does not respond. . Furthermore, the minimum non-response section can be specified by opening the information line switch 7 at the center of the non-response section and successively narrowing the sections in the same manner as described above.
従来では、メタルケーブルを直接接続あるいは分岐箱
内接続等により接続した場合に長期間経過すると湿気や
ガス等の環境条件によって接続部位に酸化皮膜が生じる
ことがある。この酸化皮膜は信号に対して断線と等価に
作用するがAC100V等の制御電源は皮膜を破壊できる。従
って、情報伝送線路３が外見上は接続されていても実際
の制御信号の接続は不良という状態になる。本発明で
は、情報伝送線路３を閉回路に接続することから、この
ような酸化皮膜が発生しても断点が１ヶ所であれば情報
の遮断を十分防止できる。Conventionally, when a metal cable is connected by direct connection or connection in a branch box or the like, an oxide film may be formed at a connection portion due to environmental conditions such as humidity and gas after a long period of time. This oxide film acts equivalently to disconnection of the signal, but a control power supply such as AC100V can destroy the film. Therefore, even if the information transmission line 3 is apparently connected, the connection of the actual control signal is in a defective state. In the present invention, since the information transmission line 3 is connected to a closed circuit, even if such an oxide film occurs, the interruption of information can be sufficiently prevented if there is only one break.
（発明の効果） 以上説明したように、本発明によれば、電力配電線に
複数の電力開閉器が順次直列に介在配置され、前記電力
配電線に沿って情報伝送線路が布設され、該情報伝送線
路に前記複数の電力開閉器の夫々を開閉制御する複数の
電力子局及び対応する前記電力開閉器を開閉制御する指
令を各電力子局に与える制御親局が接続されて構成され
た電力配電線電力開閉制御系統が複数組存在する電力配
電線の電力開閉制御方式において、前記情報伝送線路が
閉回路をなすように前記制御親局に接続され、前記制御
親局が閉回路の双方向に制御信号を送出することによ
り、また、１系統の前記情報伝送線路が他系統の前記情
報伝送線路と閉回路となるように接続されていることに
より、更に、前記情報伝送線路に直列に複数の情報線路
開閉器が介在配置され、該情報線路開閉器の夫々に情報
開閉制御局が接続されていることにより、従来の異常監
視装置、異常検出装置、本線予備線切替装置等が不要と
なり構成が非常に簡単化され、そのための特別の保守点
検も不要であり、情報伝送線路の接続個所の接続不良が
発生しても一個所であれば十分に電力開閉器を制御可能
であり、電力子局の不感帯区間を短くすることができる
という効果が得られる。(Effects of the Invention) As described above, according to the present invention, a plurality of power switches are sequentially arranged in series on an electric power distribution line, and an information transmission line is laid along the electric power distribution line. A plurality of power slave stations for controlling the opening and closing of each of the plurality of power switches and a control master station for giving a command for controlling the opening and closing of the corresponding power switch to each power slave station are connected to a transmission line. In a power switching control method for a power distribution line in which a plurality of sets of distribution line power switching control systems exist, the information transmission line is connected to the control master station so as to form a closed circuit, and the control master station is in a closed circuit bidirectional manner. And the information transmission line of one system is connected to the information transmission line of the other system so as to form a closed circuit. Information track switch And the information switching control station is connected to each of the information line switches, so that the conventional abnormality monitoring device, abnormality detecting device, main line spare line switching device, etc. become unnecessary, and the configuration is greatly simplified. Therefore, no special maintenance and inspection is required, and even if a connection failure occurs at the connection point of the information transmission line, the power switch can be controlled sufficiently at one location, and the dead zone of the power slave station can be controlled. The effect of shortening can be obtained.
第１図及び第２図は夫々本発明の電力配電線の電力開閉
制御方式の一配電線電力開閉制御系統の一実施例の概略
構成図、第３図は第１図の本発明の実施例を詳細に示す
ブロック回路図、第４図乃至第８図は夫々第３図の実施
例の動作を説明するための図、第９図及び第10図は夫々
従来の電力配電線の電力開閉制御方式の系統を示すブロ
ック回路図、第11図は従来の電力配電線の電力開閉制御
方式の動作を説明する図である。 １…制御親局、２…電力子局、3,5…情報伝送線路、７
…情報線路開閉器、９…電源、10…遮断器、11…変圧
器、12…電力配電線遮断器、13…電力配電線、14…電力
開閉器。1 and 2 are schematic diagrams each showing an embodiment of a power distribution control system for a distribution line according to the present invention, and FIG. 3 is an embodiment of the present invention shown in FIG. 4 to 8 are diagrams for explaining the operation of the embodiment of FIG. 3, and FIGS. 9 and 10 are power switching control of a conventional power distribution line, respectively. FIG. 11 is a block circuit diagram showing a system of the system, and FIG. 11 is a diagram for explaining the operation of a conventional power switching control system for power distribution lines. 1: Control master station, 2: Power slave station, 3,5: Information transmission line, 7
... information line switch, 9 ... power supply, 10 ... breaker, 11 ... transformer, 12 ... power distribution line breaker, 13 ... power distribution line, 14 ... power switch.
Claims (3)
数の電力開閉器の夫々を開閉制御する複数の電力子局
と、対応する前記電力開閉器を開閉制御する指示を各電
力子局に与える制御親局と、前記電力配電線に沿って布
設され、かつ前記制御親局に閉回路をなすように接続さ
れるとともに、前記電力子局が所定位置に接続された情
報伝送線路とから構成され、前記制御親局が前記閉回路
に制御信号を送出する電力配電線の電力開閉制御方式に
おいて、 前記制御親局は、前記制御信号を双方向に同時に前記情
報伝送線路に送出し、該情報伝送線路は、前記電力子局
に到達する前記双方向からの制御信号のビットのずれ
が、０から1/2ビット以内になるように前記閉回路を構
成することを特徴とする電力配電線の電力開閉制御方
式。1. A plurality of power slave stations for controlling the opening and closing of each of a plurality of power switches sequentially arranged in series in a power distribution line, and an instruction for controlling the opening and closing of the corresponding power switch is given to each power slave station. And the information transmission line connected to the control master station and laid along the power distribution line to form a closed circuit, and the power slave station is connected to a predetermined position. In the power switching control method for a power distribution line, wherein the control master station sends a control signal to the closed circuit, the control master station sends the control signal to the information transmission line simultaneously in both directions. The power transmission line, wherein the information transmission line configures the closed circuit so that a bit shift of the control signal from the two directions reaching the power slave station is within 0 to 1/2 bit. Power switching control method.
送線路が他系統の前記情報伝送線路と閉回路を構成する
ように、該情報伝送線路同士を直接接続させることを特
徴とする請求項１記載の電力配電線の電力開閉制御方
式。2. The information transmission lines are directly connected to each other so that one system of the information transmission lines constituting the closed circuit forms a closed circuit with the other system of information transmission lines. Item 2. A power switching control method for a power distribution line according to Item 1.
れが、０から1/2ビットのうち、特に０から1/4ビット以
内になるように構成されることを特徴とする請求項１又
は２記載の電力配電線の電力開閉制御方式。3. The closed circuit according to claim 1, wherein the shift of the bit of the control signal is within 0 to 1/4 bits, particularly 0 to 1/4 bits. 3. The power switching control method for a power distribution line according to 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63228494A JP2721194B2 (en) | 1988-09-14 | 1988-09-14 | Power switching control method for power distribution lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63228494A JP2721194B2 (en) | 1988-09-14 | 1988-09-14 | Power switching control method for power distribution lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0279724A JPH0279724A (en) | 1990-03-20 |
| JP2721194B2 true JP2721194B2 (en) | 1998-03-04 |
Family
ID=16877340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63228494A Expired - Fee Related JP2721194B2 (en) | 1988-09-14 | 1988-09-14 | Power switching control method for power distribution lines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2721194B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7316909B2 (en) * | 2018-11-21 | 2023-07-28 | 三菱電機株式会社 | Optical communication system, communication device and communication method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834647A (en) * | 1981-08-25 | 1983-03-01 | Fujitsu Ltd | Telemeter doubling system |
| JPS5910104A (en) * | 1982-07-07 | 1984-01-19 | 株式会社東芝 | Switchboard |
| JPS6149618A (en) * | 1984-08-17 | 1986-03-11 | 株式会社明電舎 | Backup system of centralized process type loop protecting relay |
| JPS62105550A (en) * | 1985-11-01 | 1987-05-16 | Fujitsu Ltd | Line switching system |
-
1988
- 1988-09-14 JP JP63228494A patent/JP2721194B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0279724A (en) | 1990-03-20 |
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