JPH093668A - Method for feeding electricity to equipment installed underground - Google Patents
Method for feeding electricity to equipment installed undergroundInfo
- Publication number
- JPH093668A JPH093668A JP7147485A JP14748595A JPH093668A JP H093668 A JPH093668 A JP H093668A JP 7147485 A JP7147485 A JP 7147485A JP 14748595 A JP14748595 A JP 14748595A JP H093668 A JPH093668 A JP H093668A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- underground
- power
- circuit
- power supply
- 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.)
- Granted
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は地中設置機器への給電方
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 for supplying power to equipment installed underground.
【０００２】[0002]
【従来の技術】例えば地下ガバナ等に設けた計測器等の
地中設置機器に給電するために、従来は、地上に商用電
力の受電装置を設置し、ここから地中設置機器まで電線
を敷設している。2. Description of the Related Art Conventionally, in order to supply power to underground equipment such as measuring instruments installed in an underground governor, conventionally, a commercial power receiving device is installed on the ground, and an electric wire is laid from here to the underground equipment. are doing.
【０００３】一方、電車のレールに近接して埋設されて
いるガス導管には、電車が通過する際に生じる帰電流が
レールを伝わらずに流れ込み、ガス導管を流れて変電所
付近で流出して変電所に帰る。この流入電流に対して電
気防食設備はガス導管を対地に対して所定の卑電位を保
持するように作用するが、交流電流に関しては防食上問
題ないため無視している。この他、ガス導管には、電力
線からの誘導電流等、多岐にわたる交流電流が流れる。On the other hand, a return current generated when a train passes does not flow through the rail but flows into the gas conduit buried near the rail of the train, flows through the gas conduit and flows out near the substation. Return to the substation. The cathodic protection equipment acts on this inflowing current so as to keep the gas conduit at a predetermined base potential with respect to the ground, but AC current is neglected because it has no problem in anticorrosion. In addition, a wide variety of alternating currents such as an induced current from a power line flows in the gas conduit.
【０００４】[0004]
【発明が解決しようとする課題】地中設置機器の設置場
所によっては受電装置の設置が困難な場合があり、バッ
テリーによる給電等の工夫が必要であり、この場合には
定期的なメンテナンスが必要となる等の課題があった。
そこで本発明では、このような課題を解決することを目
的とする。It may be difficult to install the power receiving device depending on the installation location of the equipment installed underground, and it is necessary to devise a method such as power supply with a battery. In this case, periodic maintenance is required. There was a problem such as
Therefore, an object of the present invention is to solve such a problem.
【０００５】[0005]
【課題を解決するための手段】上述した課題を解決する
ために、まず、本発明では、外部電源法により電気防食
が行われているガス導管と大地間に電圧レベルを変換す
る電源回路を構成して地中設置機器に給電することを提
案する。In order to solve the above-mentioned problems, first of all, in the present invention, a power supply circuit for converting a voltage level between a gas conduit, which is subjected to cathodic protection by the external power supply method, and ground is constructed. Then, it is proposed to supply power to underground equipment.
【０００６】そして、上記構成において、電源回路は、
コンデンサと、ＤＣ−ＤＣコンバータと、電圧レギュレ
ータとから構成することを提案する。In the above structure, the power supply circuit is
It is proposed to be composed of a capacitor, a DC-DC converter, and a voltage regulator.
【０００７】次に本発明では、電車のレールに近接して
埋設されているガス導管と大地間に、その間の交流電流
を整流して蓄電池に充電する電源回路を構成し、充電さ
れた電力を必要に応じて地中設置機器に給電することを
提案する。Next, in the present invention, a power supply circuit for rectifying an alternating current between them and charging a storage battery is constructed between the gas conduit buried near the rail of the train and the ground, and the charged electric power is supplied. We propose to power underground equipment as needed.
【０００８】そして、上記構成において、電源回路は、
整流回路と、蓄電制御部と、蓄電池と、電圧安定化回路
とから構成することを提案する。In the above structure, the power supply circuit is
It is proposed to be composed of a rectifier circuit, a power storage control unit, a storage battery, and a voltage stabilizing circuit.
【０００９】[0009]
【作用】外部電源法により電気防食が行われているガス
導管では、十分な防食電流が供給されており、大地に対
する卑電位の変動も余り大きくない。従って、この卑電
位を電源回路で所望の電圧レベルに変換することによ
り、ガス導管に近接した地中設置機器に給電することが
できる。In the gas conduit which is subjected to cathodic protection by the external power supply method, a sufficient anticorrosive current is supplied, and the fluctuation of the base potential with respect to the ground is not so large. Therefore, by converting this base potential into a desired voltage level in the power supply circuit, it is possible to supply power to the underground equipment close to the gas conduit.
【００１０】一方、電車のレールと近接して埋設されて
いるガス導管に、電車運行時の帰電流や電力線からの誘
導電流等の交流電流が流入すると、この交流電流はガス
導管に接続している電源回路で整流され、蓄電池に充電
される。このようにして不要な交流電流がガス導管に流
れる度に充電され、蓄電池に十分な量の電気エネルギが
蓄積されていく。こうして非常時等の必要に応じて、蓄
電池から地中設置機器に給電を行うことができる。On the other hand, when an alternating current such as a return current at the time of train operation or an induced current from a power line flows into the gas conduit buried near the rail of the train, this alternating current is connected to the gas conduit. It is rectified by the power supply circuit and charged in the storage battery. In this way, each time an unnecessary alternating current flows through the gas conduit, it is charged and a sufficient amount of electric energy is accumulated in the storage battery. In this way, it is possible to supply power from the storage battery to the underground installation device as needed in an emergency.
【００１１】[0011]
【実施例】次に本発明の実施例を図１、図２を参照して
説明する。まず、図１は外部電源法により電気防食が行
われているガス導管に近接する地中設置機器に対して給
電する構成の一実施例を示すもので、符号１は地中に埋
設されているガス導管であり、このガス導管１は整圧所
等において外部電源法により電気防食が施されているも
のである。即ち、図において符号２は直流電源装置、３
は陽極電極である。また符号４は地下ガバナ室、５はこ
の地下ガバナ室４に設けた計測機器である。符号６は電
源回路であり、この電源回路６はコンデンサ７と、ＤＣ
−ＤＣコンバータ８と、電圧レギュレータ９とから構成
しており、正側を接地すると共に、負側をガス導管１に
接続している。ＤＣ−ＤＣコンバータ８及び電圧レギュ
レータ９は、ガス導管１の対地卑電位において動作可能
なものであれば適宜の回路構成を採ることができる。Embodiments of the present invention will now be described with reference to FIGS. First, FIG. 1 shows an embodiment of a structure in which power is supplied to a ground-installed device in the vicinity of a gas conduit that is subjected to cathodic protection by the external power supply method, and reference numeral 1 is buried in the ground. This is a gas conduit, and the gas conduit 1 is subjected to galvanic protection by an external power source method in a pressure regulating place or the like. That is, in the figure, reference numeral 2 is a DC power supply device, 3
Is an anode electrode. Reference numeral 4 is an underground governor room, and 5 is a measuring instrument provided in the underground governor room 4. Reference numeral 6 is a power supply circuit, and this power supply circuit 6 includes a capacitor 7 and a DC
It is composed of a DC converter 8 and a voltage regulator 9. The positive side is grounded and the negative side is connected to the gas conduit 1. The DC-DC converter 8 and the voltage regulator 9 can have an appropriate circuit configuration as long as they can operate at the ground potential of the gas conduit 1.
【００１２】以上の構成において、ガス導管１の対地卑
電位はＤＣ−ＤＣコンバータ８により昇圧した後、電圧
レギュレータ９で所定の電圧に安定化して計測機器５の
電源として利用することができる。計測機器５に供給す
る電圧は、負電圧とする他、必要に応じてＤＣ−ＤＣコ
ンバータ８により正電圧に変換して供給することもでき
る。In the above structure, the ground potential of the gas conduit 1 is boosted by the DC-DC converter 8 and then stabilized at a predetermined voltage by the voltage regulator 9 so that it can be used as the power source of the measuring instrument 5. The voltage supplied to the measuring device 5 may be a negative voltage, or may be converted into a positive voltage by the DC-DC converter 8 and supplied if necessary.
【００１３】次に、図２は電車のレールに近接して埋設
されているガス導管に近接する地中設置機器に対して給
電する構成の一実施例を示すもので、符号１１は地中に
埋設されているガス導管であり、１２は地下ガバナ室、
１３はこの地下ガバナ室１２に設けた計測機器等の地中
設置機器である。符号１４は電源回路であり、この電源
回路１４は、ダイオードブリッジ１５とコンデンサ１６
による整流回路と、充電制御回路１７と、蓄電池１８
と、電圧安定化回路１９とから構成しており、これらの
回路は従来からの適宜の構成を利用することができる。Next, FIG. 2 shows an embodiment of a structure for supplying electric power to an underground equipment installed near a gas conduit buried near a rail of a train. It is a buried gas conduit, 12 is an underground governor room,
Reference numeral 13 denotes underground equipment such as measuring equipment provided in the underground governor room 12. Reference numeral 14 is a power supply circuit. This power supply circuit 14 includes a diode bridge 15 and a capacitor 16.
Rectifier circuit, charge control circuit 17, storage battery 18
And a voltage stabilizing circuit 19, and these circuits can use an appropriate conventional configuration.
【００１４】以上の構成において、電車運行時の帰電流
や電力線からの誘導電流等の交流電流がガス導管１１に
流れると、この交流電流はガス導管１１に接続している
電源回路１４に流入し、まず整流回路で整流された後、
充電制御回路１７で、電圧レベルの調整、過電流の抑制
等の制御がされながら蓄電池１８に充電される。こうし
て交流電流が流れる度に蓄電池１８に充電がなされるた
め、１回毎の流入電力は僅かであっても次第に十分な電
気エネルギが蓄えられて行く。In the above structure, when an alternating current such as a return current during train operation or an induced current from a power line flows into the gas conduit 11, this alternating current flows into the power supply circuit 14 connected to the gas conduit 11. , First rectified by the rectifier circuit,
The charge control circuit 17 charges the storage battery 18 while controlling the voltage level, controlling the overcurrent, and the like. In this way, the storage battery 18 is charged each time an alternating current flows, so that sufficient electric energy is gradually stored even if the inflow power per time is small.
【００１５】蓄電池１８に充電された電力は、所定時間
毎に地中設置機器１３に給電して、所定の計測等を行わ
せることもできるし、非常時等にのみ地中設置機器１３
に給電して、所定の処理を行わせるようにすることもで
きる。蓄電池１８から地中設置機器１３への給電は、３
端子レギュレータ等の電圧安定化回路１９を介して行う
ことにより、安定した電力の供給を行うことができる。The electric power charged in the storage battery 18 can be supplied to the ground-installed equipment 13 at predetermined time intervals to perform predetermined measurement or the like, or only in an emergency or the like.
It is also possible to supply power to the device so as to perform a predetermined process. The power supply from the storage battery 18 to the underground equipment 13 is 3
By performing it via the voltage stabilizing circuit 19 such as a terminal regulator, stable power supply can be performed.
【００１６】[0016]
【発明の効果】本発明は以上のとおり、地中接地機器へ
の給電を、外部電源法により電気防食が行われている埋
設されたガス導管から行ったり、又は電車のレールと近
接して埋設されているガス導管から行うことができるの
で、地上に受電装置を設置するのが困難な場所の地下ガ
バナ室等内の機器にも容易に給電を行うことができ、電
池の取替え等のメンテナンスも不要であるという効果が
ある。INDUSTRIAL APPLICABILITY As described above, the present invention supplies electric power to an earth grounding device from a buried gas conduit which is galvanically protected by the external power source method, or buried near a train rail. Since it can be performed from the gas conduit that is installed, it is possible to easily supply power to equipment in the underground governor room etc. where it is difficult to install a power receiving device on the ground, and maintenance such as battery replacement is also possible. There is an effect that it is unnecessary.
【図１】 本発明の給電方法の第１の実施例を表した概
念図である。FIG. 1 is a conceptual diagram showing a first embodiment of a power feeding method of the present invention.
【図２】 本発明の給電方法の第２の実施例を表した概
念図である。FIG. 2 is a conceptual diagram showing a second embodiment of the power feeding method of the present invention.
１ ガス導管 ２ 直流電源装置 ３ 陽極電極 ４ 地下ガバナ室 ５ 計測機器 ６ 電源回路 ７ コンデンサ ８ ＤＣ−ＤＣコンバータ ９ 電圧レギュレータ １１ ガス導管 １２ 地下ガバナ室 １３ 計測機器 １４ 電源回路 １５ ダイオードブリッジ １６ コンデンサ １７ 充電制御回路 １８ 蓄電池 １９ 電圧安定化回路 1 Gas Conduit 2 DC Power Supply 3 Anode Electrode 4 Underground Governor Room 5 Measuring Equipment 6 Power Supply Circuit 7 Capacitor 8 DC-DC Converter 9 Voltage Regulator 11 Gas Conduit 12 Underground Governor Room 13 Measuring Equipment 14 Power Supply Circuit 15 Diode Bridge 16 Capacitor 17 Charging Control circuit 18 Storage battery 19 Voltage stabilization circuit
Claims (4)
るガス導管と大地間に電圧レベルを変換する電源回路を
構成して地中設置機器に給電することを特徴とする地中
設置機器への給電方法。1. An underground installation device characterized by comprising a power supply circuit for converting a voltage level between a gas conduit, which is subjected to cathodic protection by the external power supply method, and the ground to supply power to the underground installation device. Power supply method.
コンバータと、電圧レギュレータとから構成することを
特徴とする請求項１記載の地中設置機器への給電方法。2. The power supply circuit comprises a capacitor and DC-DC.
The method for supplying power to the ground-installed equipment according to claim 1, comprising a converter and a voltage regulator.
ガス導管と大地間に、その間の交流電流を整流して蓄電
池に充電する電源回路を構成し、充電された電力を必要
に応じて地中設置機器に給電することを特徴とする地中
設置機器への給電方法。3. A power supply circuit for rectifying an alternating current therebetween to charge a storage battery between a gas conduit buried near a rail of a train and the ground, and charging electric power as required. A method for supplying power to a ground-installed device, characterized by supplying power to the ground-installed device.
と、蓄電池と、電圧安定化回路とから構成することを特
徴とする請求項３記載の地中設置機器への給電方法。4. The method of supplying power to a ground-installed device according to claim 3, wherein the power supply circuit includes a rectifier circuit, a charge control circuit, a storage battery, and a voltage stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14748595A JP3380369B2 (en) | 1995-06-14 | 1995-06-14 | Power supply method to underground equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14748595A JP3380369B2 (en) | 1995-06-14 | 1995-06-14 | Power supply method to underground equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH093668A true JPH093668A (en) | 1997-01-07 |
| JP3380369B2 JP3380369B2 (en) | 2003-02-24 |
Family
ID=15431466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14748595A Expired - Fee Related JP3380369B2 (en) | 1995-06-14 | 1995-06-14 | Power supply method to underground equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3380369B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2414608A (en) * | 2004-05-24 | 2005-11-30 | Agilent Technologies Inc | System powered by signal on gas pipe |
| WO2007122186A2 (en) * | 2006-04-26 | 2007-11-01 | Shell Internationale Research Maatschappij B.V. | Using an impressed current cathodic protection system to power electrical appliances |
-
1995
- 1995-06-14 JP JP14748595A patent/JP3380369B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2414608A (en) * | 2004-05-24 | 2005-11-30 | Agilent Technologies Inc | System powered by signal on gas pipe |
| GB2414608B (en) * | 2004-05-24 | 2007-03-21 | Agilent Technologies Inc | System powered via signal on gas pipe |
| WO2007122186A2 (en) * | 2006-04-26 | 2007-11-01 | Shell Internationale Research Maatschappij B.V. | Using an impressed current cathodic protection system to power electrical appliances |
| WO2007122186A3 (en) * | 2006-04-26 | 2008-03-27 | Shell Int Research | Using an impressed current cathodic protection system to power electrical appliances |
| GB2450450A (en) * | 2006-04-26 | 2008-12-24 | Shell Int Research | Using an impressed current cathodic protection system to power electrical appliances |
| AU2007242780B2 (en) * | 2006-04-26 | 2010-06-10 | Shell Internationale Research Maatschappij B.V. | Using an impressed current cathodic protection system to power electrical appliances |
| GB2450450B (en) * | 2006-04-26 | 2011-04-06 | Shell Int Research | Using an impressed current cathodic protection system to power electrical appliances |
| US7951286B2 (en) | 2006-04-26 | 2011-05-31 | Shell Oil Company | Using an impressed current cathodic protection system to power electrical appliances |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3380369B2 (en) | 2003-02-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |