JPH02290123A - Member station for detecting failure section - Google Patents
Member station for detecting failure sectionInfo
- Publication number
- JPH02290123A JPH02290123A JP1108936A JP10893689A JPH02290123A JP H02290123 A JPH02290123 A JP H02290123A JP 1108936 A JP1108936 A JP 1108936A JP 10893689 A JP10893689 A JP 10893689A JP H02290123 A JPH02290123 A JP H02290123A
- Authority
- JP
- Japan
- Prior art keywords
- power
- capacitor
- distribution line
- rectifier
- data transmission
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 47
- 239000003990 capacitor Substances 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000004044 response Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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
- 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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- 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
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
-
- 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
- Y04S20/248—UPS systems or standby or emergency generators
Landscapes
- Stand-By Power Supply Arrangements (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
Description
この発明は、配電線の停電時にバックアップ電源用のコ
ンデンサから電力を得て、故障区間検出用子局から親局
に故障データなどのデータ伝送を行えるようにする故障
区間検出用子局に関するものである。The present invention relates to a fault section detection slave station that obtains power from a backup power supply capacitor in the event of a power outage in a power distribution line, and enables the fault section detection slave station to transmit data such as failure data to a master station. be.
第２図は従来の故障区間検出用子局を示すブロック接続
図であり、図において、１は配電用変電所の母線、２は
この配電用変電所の母′ｆＩＡ１に接続された複数系統
あるうちの一系統の配電線、２一１〜２−ｎは配電線２
の所定区間ごとに設置された区分開閉器、３はこの配電
線２用のしゃ断器、４は電源トランス、５はこの電源ト
ランス４を介して配電ｗＡ２に接続された子局で、この
子局５は区分開閉器２−１〜２−ｎごとに設けられてい
るが、例えば区分開閉器２−ｎの電源側に設けられた場
合を示す。６は子局５に設けられた絶縁トランス、７は
整流器、８は平滑用を兼ねる停電対策のためのバンクア
ップ電源用のコンデンサ、９は配電線の故障を検出する
故障検出・データ伝送部、９−１は配電線の電圧，電流
を検出するセンサ、９−２はセンサ９−１からの信号を
故障検出・データ伝送部９に送る信号線、１０は故障検
出・データ伝送部９からのデータで、これを親局ｌ２へ
通信線１１を介して伝送するものである。
次に動作について説明する。
まず、配電線２に故障がなく、負荷に電力が正規に供給
されている状態においては、上記故障検出・データ伝送
部９に対して、配電線２から電力を供給するとともに、
コンデンサ８を充電している。一方、配電線２のいずれ
かに地絡故障などの故障が発生し、地絡方向リレー（図
示しない》などが作動することにより、しゃ断器３がト
リップした場合には、子局５に対する電力供給が断たれ
、停電となる。しかし、この停電時には、直ちにバンク
アップ電源用の上記コンデンサ８から故障検出・データ
伝送部９に電力が供給され、上記停電期間中でも、親局
１２へ、通信線ｌ１を介してデータ１０の伝送を行って
いる。Fig. 2 is a block connection diagram showing a conventional slave station for fault section detection. One of the distribution lines, 2-1 to 2-n is distribution line 2.
3 is a breaker for this distribution line 2, 4 is a power transformer, 5 is a slave station connected to the power distribution wA2 via this power transformer 4, and this slave station Reference numeral 5 is provided for each of the section switches 2-1 to 2-n, and for example, a case where it is provided on the power supply side of the section switch 2-n is shown. 6 is an isolation transformer provided in the slave station 5; 7 is a rectifier; 8 is a capacitor for a bank-up power supply that also serves as a smoothing function as a measure against power outages; 9 is a failure detection/data transmission unit that detects failures in distribution lines; 9-1 is a sensor that detects the voltage and current of the distribution line, 9-2 is a signal line that sends the signal from sensor 9-1 to the fault detection/data transmission section 9, and 10 is a signal line that sends the signal from the fault detection/data transmission section 9. This data is transmitted to the master station l2 via the communication line 11. Next, the operation will be explained. First, in a state where there is no failure in the distribution line 2 and power is being normally supplied to the load, power is supplied from the distribution line 2 to the failure detection/data transmission section 9, and
Charging capacitor 8. On the other hand, if a fault such as a ground fault occurs in one of the distribution lines 2 and the breaker 3 trips due to activation of a ground fault direction relay (not shown), power is supplied to the slave station 5. However, at the time of this power outage, power is immediately supplied from the bank-up power supply capacitor 8 to the failure detection/data transmission unit 9, and even during the power outage period, the communication line l1 is connected to the master station 12. Data 10 is transmitted via the .
従来の故障区間検出用子局は以上のように構成されてい
るので、配電線２が停電になると、コンデンサ８から停
電直前の配電線の故障検出データを保持している故障検
出・データ伝送部９に、親局へこの故障検出データを送
出し終るまでの時間、電力を供給する必要があった。そ
の時間は親局が配電系統に存在する多数の子局を順次ポ
ーリングで呼び出し、故障検出データを収集するため、
一般に長時間を要した。このため、コンデンサ８として
容量の小さいものが使用できず、大形で十分容量の大き
いコンデンサ８を用いなければならず、従って、経済性
および構造上の点で著しく不利になるなどの問題点があ
った。
この発明は上記のような問題点を解消するためになされ
たもので、停電時に最小限必要な回路であるデータ伝送
部のみに、バックアップ電源用のコンデンサを接続する
ようにし、以ってこのコンデンサを小容攪化して小形化
．軽量化及びローコスト化を実現できる故障区間検出用
子局を得ることを目的とする。Since the conventional fault section detection slave station is configured as described above, when the distribution line 2 experiences a power outage, the fault detection/data transmission unit that holds the fault detection data of the distribution line immediately before the power outage is transferred from the capacitor 8. 9, it was necessary to supply power until the transmission of this failure detection data to the master station was completed. During that time, the master station sequentially polls a large number of slave stations in the power distribution system and collects fault detection data.
It generally took a long time. For this reason, it is not possible to use a capacitor 8 with a small capacitance, and a large capacitor 8 with a sufficiently large capacitance must be used, resulting in problems such as significant economic and structural disadvantages. there were. This invention was made in order to solve the above-mentioned problems.A capacitor for backup power supply is connected only to the data transmission section, which is the minimum necessary circuit in the event of a power outage. It is made smaller by reducing its volume. The purpose of this invention is to obtain a slave station for detecting faulty sections that is lightweight and low-cost.
この発明に係る故障区間検出用子局は、配電線を通じて
電力供給される故障検出・データ伝送部を故障検出部と
データ伝送部に２分割し、この子局に上記電力供給によ
って充電されるバックアップ電源用のコンデンサを設け
るとともに、上記配電線の停電を検出する停電検出部を
設けて、この停電検出器による停電検出時に、上記コン
デンサと故障検出部とを結ぶ電源ラインを開くようにし
たものである。A fault section detection slave station according to the present invention divides a fault detection/data transmission section supplied with power through a power distribution line into a fault detection section and a data transmission section, and this slave station is provided with a backup battery that is charged by the above-mentioned power supply. In addition to providing a power supply capacitor, a power outage detection unit is provided to detect a power outage in the distribution line, and when the power outage detector detects a power outage, the power line connecting the capacitor and the failure detection unit is opened. be.
この発明による故障区間検出用子局においては、停電検
出部が、しゃ断器のトリップ等に基づく配電線の停電を
検知して、コンデンサと故障検出部とを結ぶ電源ライン
に入れたスイッチを開放し、そのコンデンサからの放電
電力を故障検出部に供給することなくデータ伝送部に供
給させ、停電後における配電線の故障データを、通信線
を介して営業所の親局に伝送し、必要なデータ処理を行
えるようにする。In the fault section detection slave station according to the present invention, the power outage detection section detects a power outage in the distribution line due to tripping of a circuit breaker, etc., and opens a switch connected to the power line connecting the capacitor and the fault detection section. , the discharged power from the capacitor is supplied to the data transmission unit without being supplied to the failure detection unit, and the failure data of the distribution line after a power outage is transmitted to the master station of the sales office via the communication line, and the necessary data Enable processing.
以下、この発明の一実施例を図について説明する。第１
図において、９Ａは故障検出部、９Ｂはデータ伝送部、
ｌ１はコンデンサ８と故障検出部９Ａとを結ぶ電源ライ
ン、ｌ，はコンデンサ８とデータ伝送部９Ｂとを結ぶ電
源ライン、９−３は停電時に故障検出部９Ａの故障検出
データをデータ伝送部９Ｂへ転送するための故障データ
転送用信号線、ｌ５は電源ラインｌ，の途中に入れた常
閉形のスイッチ、ｌ６は配電線２の停電を検出する停電
検出器で、これが停電検出信号を出力したとき、上記ス
イッチ１５を開放するものである。
なお、このほかの第２図に示したものと同一の回路部分
には同一符号を付して、その重複する説明を省略する．
次に動作について説明する。
まず、配電線２に故障がなく、停電となっていない場合
には、この配電線２への給電中にコンデンサ８が充電さ
れ、かつ平滑化した電力が故障検出部９Ａおよびデータ
検出部９Ｂに供給される。
このとき、故Ｆ４検出部９Ａは故障データなどの各種デ
ータを検出して、これをデータ伝送部９Ｂに送り、デー
タ伝送部９Ｂはそのデータを通信線１！を介して親局１
２ヘデータ１０としてデータ伝送する。一方、地絡故障
などにより、しゃ断器３が１・リソプして、配電線２が
停電した場合には、停電検出器ｌ６はこれを検出して、
電源ラインβ１中のスイッチ１５を自動的に開放する。
このため、上記コンデンサ８から出力される放電電力の
すべてが、電源ライン７！２を通ってデータ伝送部９Ｂ
のみに供給され、このデータ伝送部９Ｂ内の図示しない
メモリに格納してある故障データなどの各種データを、
通信回ｖＡ１１を介して親局１２に高信顛度で送ること
が出来る。つまり、コンデンサ８の電力を最小限必要な
回路であるデータ伝送部９Ｂにのみ供給し、これをバッ
クアンプ電源として十分かつ安定的に動作させる。この
結果、故障検出部９Ａに対する供給電力だけ、上記コン
デンサ８の容量を小さく抑えることができ、子局の小形
化．軽量化並びにローコスト化を図ることができる。ま
た、バソテリをバンクアップ電源として用いないので、
無保守，無点検化が可能になり、かつ信顛性が向上する
。なお、この場合において、故障検出部９Ａで検出した
故障データは、停電検出器１６で停電を検出してスイッ
チｌ５を開くまでに、データ伝送部９Ｂのメモリへ転送
させておく。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 9A is a failure detection section, 9B is a data transmission section,
l1 is a power line that connects the capacitor 8 and the failure detection section 9A, l, is a power line that connects the capacitor 8 and the data transmission section 9B, and 9-3 is a power line that connects the failure detection data of the failure detection section 9A during a power outage to the data transmission section 9B. 15 is a normally closed switch inserted in the middle of the power line 1, and 16 is a power outage detector that detects a power outage in distribution line 2, which outputs a power outage detection signal. At this time, the switch 15 is opened. Note that other circuit parts that are the same as those shown in FIG. 2 are designated by the same reference numerals, and redundant explanation thereof will be omitted. Next, the operation will be explained. First, if there is no failure in the distribution line 2 and there is no power outage, the capacitor 8 is charged while power is being supplied to the distribution line 2, and the smoothed power is sent to the failure detection unit 9A and the data detection unit 9B. Supplied. At this time, the late F4 detection section 9A detects various data such as failure data and sends it to the data transmission section 9B, and the data transmission section 9B transmits the data to the communication line 1! Master station 1 via
The data is transmitted as data 10 to 2. On the other hand, if the breaker 3 resets due to a ground fault or the like and the distribution line 2 experiences a power outage, the power outage detector l6 detects this and
The switch 15 in the power line β1 is automatically opened. Therefore, all of the discharge power output from the capacitor 8 passes through the power supply line 7!2 to the data transmission section 9B.
Various data such as failure data stored in a memory (not shown) in the data transmission section 9B,
It can be sent to the master station 12 with high reliability via the communication line vA11. That is, the power of the capacitor 8 is supplied only to the data transmission section 9B, which is the minimum necessary circuit, and is operated sufficiently and stably as a back amplifier power source. As a result, it is possible to reduce the capacitance of the capacitor 8 by the amount of power supplied to the failure detection section 9A, thereby reducing the size of the slave station. It is possible to achieve weight reduction and cost reduction. Also, since the basso battery is not used as a bank up power supply,
This makes it possible to eliminate maintenance and inspection, and improves reliability. In this case, the failure data detected by the failure detection section 9A is transferred to the memory of the data transmission section 9B before the power failure detector 16 detects the power outage and opens the switch 15.
以上のように、この発明によれば、配電線の所定個所に
設けられ、当該個所の電圧・電流を検出するセンサ、上
記配電線に接続され、交流を直流に変換する整流器、こ
の整流器から電源供給を受けると共に上記センサから上
記配電線の電圧・電流情報信号を受けて配電線故障を判
別しその判別結果を該故障発生から停電に至るまでの間
にデジタル信号として出力する故障検出部、上記整流器
により充電されるコンデンサ、停電前は上記整流器から
上記故障検出部とは別の電源ラインにより電源供給を受
け停電後は上記コンデンサから電源供給を受けて上記故
障検出部の出力を入力すると共に該入力内容を親局に送
信するデータ伝送部、及び配電線の停電に応動し上記コ
ンデンサと上記故障検出部との間の電源ラインを開放す
る停電検出器を備えた構成としたので、上記コンデンサ
の容量を、上記データ伝送部が必要とする大きさとする
ことができ、従来に比較して十分に小容量化、小形化で
き、従って、子局全体の小形化，軽量化およびローコス
ト化を実現できるものが得られる効果がある。As described above, according to the present invention, a sensor is provided at a predetermined location on a distribution line to detect the voltage and current at the location, a rectifier is connected to the distribution line and converts alternating current into direct current, and a power source is supplied from the rectifier. a failure detection unit that receives the power supply and receives a voltage/current information signal of the distribution line from the sensor, determines a distribution line failure, and outputs the determination result as a digital signal from the occurrence of the failure to the power outage; A capacitor charged by a rectifier, before a power outage, is supplied with power from the rectifier through a power line separate from the fault detection section, and after a power outage, receives power from the capacitor, inputs the output of the fault detection section, and receives the output of the fault detection section. The configuration is equipped with a data transmission section that transmits input contents to the master station, and a power outage detector that opens the power line between the capacitor and the fault detection section in response to a power outage on the distribution line. The capacity can be set to the size required by the data transmission section, and the capacity and size can be sufficiently reduced compared to the conventional system. Therefore, the entire slave station can be made smaller, lighter, and lower in cost. It has the effect of getting something.
第１図はこの発明の一実施例による故障区間検出用子局
を示すブロック接続図、第２図は従来の故障区間検出用
子局を示すブロック接続図である。
２は配電線、５は子局、７は整流器、８はコンデンサ、
９Ａは故障検出部、９Ｂはデータ伝送部、１２は親局、
１５はスイッチ、１６は停電検出器、１，，１，は電源
ライン。
なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a block connection diagram showing a fault section detection slave station according to an embodiment of the present invention, and FIG. 2 is a block connection diagram showing a conventional fault section detection slave station. 2 is a distribution line, 5 is a slave station, 7 is a rectifier, 8 is a capacitor,
9A is a failure detection section, 9B is a data transmission section, 12 is a master station,
15 is a switch, 16 is a power failure detector, and 1,,1, is a power line. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
検出するセンサ、上記配電線に接続され、交流を直流に
変換する整流器、この整流器から電源供給を受けると共
に上記センサから上記配電線の電圧・電流情報信号を受
けて配電線故障を判別しその判別結果を該故障発生から
停電に至るまでの間にデジタル信号として出力する故障
検出部、上記整流器により充電されるコンデンサ、停電
前は上記整流器から上記故障検出部とは別の電源システ
ムにより電源供給を受け停電後は上記コンデンサから電
源供給を受けて上記故障検出部の出力を入力すると共に
該入力内容を親局に送信するデータ伝送部、及び配電線
の停電に応動し上記コンデンサと上記故障検出部との間
の電源ラインを開放する停電検出器を備えた故障区間検
出用子局。A sensor installed at a predetermined location on the distribution line to detect the voltage and current at the location; a rectifier connected to the distribution line to convert alternating current to direct current; and a rectifier that receives power from the rectifier and connects the sensor to the distribution line. A fault detection unit that receives voltage/current information signals, determines distribution line failures, and outputs the determination results as a digital signal from the time the failure occurs until a power outage; a capacitor that is charged by the rectifier; a data transmission section that receives power supply from the rectifier through a power supply system separate from the failure detection section, receives power supply from the capacitor after a power outage, inputs the output of the failure detection section, and transmits the input contents to the master station; and a slave station for fault section detection, comprising a power outage detector that opens a power line between the capacitor and the fault detection section in response to a power outage in the distribution line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1108936A JPH02290123A (en) | 1989-04-27 | 1989-04-27 | Member station for detecting failure section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1108936A JPH02290123A (en) | 1989-04-27 | 1989-04-27 | Member station for detecting failure section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02290123A true JPH02290123A (en) | 1990-11-30 |
Family
ID=14497407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1108936A Pending JPH02290123A (en) | 1989-04-27 | 1989-04-27 | Member station for detecting failure section |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02290123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8692480B2 (en) | 2008-09-05 | 2014-04-08 | Nxp B.V. | Power supply unit and method for controlling a power supply unit |
-
1989
- 1989-04-27 JP JP1108936A patent/JPH02290123A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8692480B2 (en) | 2008-09-05 | 2014-04-08 | Nxp B.V. | Power supply unit and method for controlling a power supply unit |
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