JP2600426B2 - Transmission / reception circuit of distribution line carrier signal - Google Patents
Transmission / reception circuit of distribution line carrier signalInfo
- Publication number
- JP2600426B2 JP2600426B2 JP2073284A JP7328490A JP2600426B2 JP 2600426 B2 JP2600426 B2 JP 2600426B2 JP 2073284 A JP2073284 A JP 2073284A JP 7328490 A JP7328490 A JP 7328490A JP 2600426 B2 JP2600426 B2 JP 2600426B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- distribution line
- carrier signal
- reception circuit
- circuit
- 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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Description
【発明の詳細な説明】 「産業上の利用分野」 本発明は、配電自動化システムに適用する大地帰路方
式による配電線搬送信号の送受信回路に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission / reception circuit of a distribution line carrier signal by a ground return method applied to a distribution automation system.
「従来の技術」 従来の配電線搬送信号の送受信回路について第１図を
参照して説明する。大地帰路による配電線搬送信号は6K
V配線電線路と大地間に流れ、通常５〜10KHz帯域内で規
定された周波数が使用される。親局から送信された搬送
信号は、6KV配電線路1,2から結合コンデンサー4,5を介
して結合フィルタートランス6,7に接続され大地へ流れ
る。その二次出力は送受信回路11に加わる。送受信回路
11は受信した搬送信号を復調して、制御回路12に渡す。
制御回路12は所定の処理を行い、開閉器３に制御指令を
出力する。[Prior Art] A conventional transmission / reception circuit for a distribution line carrier signal will be described with reference to FIG. 6K for distribution line carrier signal by ground return
It flows between the V wiring line and the ground, and usually uses a frequency specified in a band of 5 to 10 KHz. The carrier signal transmitted from the master station is connected to the coupling filter transformers 6 and 7 from the 6KV distribution lines 1 and 2 via the coupling capacitors 4 and 5 and flows to the ground. The secondary output is applied to the transmission / reception circuit 11. Transmitter / receiver circuit
11 demodulates the received carrier signal and passes it to the control circuit 12.
The control circuit 12 performs a predetermined process and outputs a control command to the switch 3.
開閉器が制御されると、制御回路12はその結果を取り
込んで所定の伝送フォーマットの論理信号を構成して送
受信回路11に渡す。送受信回路11は、論理信号を変調・
増幅して搬送信号を送出する。搬送信号は、結合フィル
タートランス6,7、結合コンデンサー4,5、6KV配電線路
1,2を経由して親局に送出される。When the switch is controlled, the control circuit 12 takes in the result, forms a logic signal of a predetermined transmission format, and passes it to the transmission / reception circuit 11. The transmission / reception circuit 11 modulates /
The signal is amplified and the carrier signal is transmitted. Carrier signals are coupling filter transformers 6,7, coupling capacitors 4,5,6KV distribution line
It is sent to the master station via 1 and 2.
8,9は電源用トランスで、高圧6.6KVから低圧（通常は
100V）に変換し、制御器10の電源回路13に供給する。電
源回路13は、内部回路動作に必要な電圧に変換して供給
する。8 and 9 are transformers for power supply.
100V) and supply it to the power supply circuit 13 of the controller 10. The power supply circuit 13 converts the voltage into a voltage required for the operation of the internal circuit and supplies the converted voltage.
「発明が解決しようとする課題」 従来の配電線搬送の送受信回路は、結合フィルタート
ランス６と７の信号を合成して取り込んでいた。[Problem to be Solved by the Invention] A conventional transmission / reception circuit for conveying distribution lines combines and takes in the signals of the coupling filter transformers 6 and 7.
開閉器３が入状態の場合には、結合フィルタートラン
ス６と７の出力信号はまったく同じであるが、開閉器３
が切状態の場合には6KV配電線路１側と２側では搬送信
号の大きさ、位相が異なるため、結合フィルタートラン
ス６と７の出力信号にも信号の大きさ、位相が異なる場
合がある。開閉器３が切状態の場合の6KV配電線路１側
と２側の信号の関係を第２図に示す。開閉器３が切状態
で、6KV配電線路１側と２側の信号の関係は、大きさが
ほぼ同じで位相差が180度に近い場合には結合フィルタ
ートランスの二次回路で合成した時に、打ち消し合って
レベルが大幅に低下する場合がある。When the switch 3 is turned on, the output signals of the coupling filter transformers 6 and 7 are exactly the same, but the switch 3
Is off, the magnitude and phase of the carrier signal differ between the 6KV distribution line 1 side and the 2KV distribution line side, so that the magnitude and phase of the output signals of the coupling filter transformers 6 and 7 may also differ. FIG. 2 shows the relationship between the signals on the 6KV distribution line 1 side and the 2K side when the switch 3 is in the off state. When the switch 3 is in the off state, the relationship between the signals on the 6KV distribution lines 1 and 2 is almost the same and the phase difference is close to 180 degrees. The levels can be significantly reduced due to cancellation.
本発明は開閉器３の状態に関係しない配電線搬送信号
の送受信回路を提供する事を目的としている。An object of the present invention is to provide a transmission / reception circuit for a distribution line carrier signal that is not related to the state of the switch 3.
「課題を解決するための手段」 本発明は、結合フィルタートランスの二次回路に各々
送受信回路を設け、搬送信号を各々独立して入力するこ
とにより、6KV配電線路１側と２側の搬送信号の干渉を
なくしたものである。[Means for Solving the Problems] The present invention provides a transmission / reception circuit in a secondary circuit of a coupling filter transformer, and independently inputs carrier signals, thereby providing carrier signals on 6KV distribution line 1 and 2 side. The interference was eliminated.
「作用」 本発明で提供する搬送信号送受信回路を用いることに
より配電線開閉器が切状態の場合に、6KV配電線路１側
と２側の信号の干渉を防ぐことが可能である。[Operation] By using the carrier signal transmission / reception circuit provided by the present invention, it is possible to prevent interference between signals on the 6KV distribution line 1 side and 2KV distribution line switch when the distribution line switch is in the off state.
「実施例」 実施例について図面を参照して説明する。第３図にお
いて、１〜13まで11を除き第１図と同じである。11−１
および11−２は新たに追加した回路であり、結合フィル
タートランス6,7と各々接続され、信号を独立に取り込
む送受信回路である。Example An example will be described with reference to the drawings. FIG. 3 is the same as FIG. 11-1
And 11-2 are newly added circuits, which are transmission / reception circuits respectively connected to the coupling filter transformers 6 and 7 and independently taking in signals.
搬送信号を受信した場合には、送受信回路11−1,11−
２で搬送波を復調して論理信号に変換し、制御回路12に
渡す。制御回路12は論理信号に関して符号検定を行い、
11−１または11−２のどちらか一方の誤りのない方の信
号を用いて処理を行う。両方共誤っている場合は、受信
不能として処理する。When a carrier signal is received, the transmitting and receiving circuits 11-1, 11-
At 2, the carrier is demodulated and converted into a logic signal, which is passed to the control circuit 12. The control circuit 12 performs a sign test on the logic signal,
The processing is performed using one of the error-free signals 11-1 and 11-2. If both are incorrect, it is processed as unreceivable.
また、搬送信号を出力する場合には、制御回路12で作
成した所定のフォーマットの論輪信号をそれぞれ11−1,
11−２で変調・増幅して結合フィルタートランス6,7に
出力する。この信号は、結合フィルター4,5を介して6KV
配電線1,2に送信される。When a carrier signal is output, the logic signals in a predetermined format created by the control circuit 12 are respectively 11-1 and 11-1.
The signal is modulated and amplified in 11-2 and output to the coupling filter transformers 6 and 7. This signal is applied to 6KV via coupling filters 4 and 5.
Sent to distribution lines 1 and 2.
「発明の効果」 本発明は、搬送信号の入力回路に各々独立した送受信
回路を設け、どちらか一方の信号のみ単独に取り込むた
め、開閉器両側の信号間の干渉によるレベル低下が発生
せず、伝送の信頼性が向上する。"Effects of the Invention" The present invention provides an independent transmission / reception circuit for the input circuit of the carrier signal, and takes only one of the signals alone, so that the level does not decrease due to interference between the signals on both sides of the switch, Transmission reliability is improved.
第１図は従来の配電線搬送信号の送受信回路、第２図は
結合フィルター二次の信号波形図、第３図は本発明の配
電線搬送信号送受信回路の実施例である。 1,2……6KV配電線、３……配電線開閉器、4,5……結合
用コンデンサー、6,7……結合フィルタートランス、8,9
……電源用トランス、10……子局用制御器、11……送受
信回路、12……制御回路、13……電源回路。FIG. 1 is a conventional transmission / reception circuit of a distribution line carrier signal, FIG. 2 is a signal waveform diagram of a secondary filter of a coupling filter, and FIG. 3 is an embodiment of a distribution line carrier signal transmission / reception circuit of the present invention. 1,2… 6KV distribution line, 3… Distribution line switch, 4,5… Coupling capacitor, 6,7… Coupling filter transformer, 8,9
…… Transformer for power supply, 10… Controller for slave station, 11… Transceiving circuit, 12… Control circuit, 13… Power supply circuit.
Claims (1)
信回路において、配電線開閉器の両側に設けた結合フィ
ルタートランスの二次回路出力を各々単独に取り込み、
各々の出力回路に搬送波の送受信回路を接続したことを
特徴とする配電線搬送信号の送受信回路。In a transmission / reception circuit for a distribution line carrier signal by a ground return method, secondary circuit outputs of coupling filter transformers provided on both sides of a distribution line switch are individually taken in.
A transmission / reception circuit for a distribution line carrier signal, wherein a transmission / reception circuit for a carrier wave is connected to each output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2073284A JP2600426B2 (en) | 1990-03-26 | 1990-03-26 | Transmission / reception circuit of distribution line carrier signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2073284A JP2600426B2 (en) | 1990-03-26 | 1990-03-26 | Transmission / reception circuit of distribution line carrier signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03277141A JPH03277141A (en) | 1991-12-09 |
| JP2600426B2 true JP2600426B2 (en) | 1997-04-16 |
Family
ID=13513694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2073284A Expired - Fee Related JP2600426B2 (en) | 1990-03-26 | 1990-03-26 | Transmission / reception circuit of distribution line carrier signal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2600426B2 (en) |
-
1990
- 1990-03-26 JP JP2073284A patent/JP2600426B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03277141A (en) | 1991-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |