JPS63191734U

JPS63191734U -

Info

Publication number: JPS63191734U
Application number: JP6807388U
Authority: JP
Priority date: 1988-05-25
Filing date: 1988-05-25
Publication date: 1988-12-09

Description

[Brief explanation of the drawing]

第１図は配電線搬送制御システムの一般的な概
念図、第２図は線路亘長と信号電流伝送比の関係
の一例を示す図、第３図は特定位置における周波
数ｆ_１，ｆ_２の信号の信号電流伝送比の時刻変化
の一例を示す図、第４図は本考案による２周波成
分を含む信号伝送波形の一例を示す図、第５図は
第４図の波形を周波数分析した図、第６図は第４
図の波形を得るための回路の一例を示す図、第７
図は第４図の波形を得るための回路の他の例を示
す図、第８図は第７図のサイリスタの制御電極に
印加するパルスのタイミング図、第９図は高圧配
電線電流の周波数成分分析結果を示す図、第１０
図は本考案における回答信号受信装置の一例を示
すブロツク図、第１１図は各部の信号波形図であ
る。１……配電指令卓、２……被制御子局、３……
高圧自動式開閉器、４……信号注入装置、５……
母線、６……柱上変圧器、７，１０……電流変成
器、８……回答信号受信装置、１１……電流電圧
変換器、１２，１３……ＬＣフイルタ、１４，１
５，１８，１９……増幅器、１６，１７……フイ
ルタ、２０，２１……検波器、２２……加算増幅
器、２３……コンパレータ、２４……受信リレー
。 Figure 1 is a general conceptual diagram of a distribution line carrier control system, Figure 2 is a diagram showing an example of the relationship between line span length and signal current transmission ratio, and Figure 3 is a diagram of frequencies f ₁ and f ₂ at specific positions. A diagram showing an example of a time change in the signal current transmission ratio of a signal, FIG. 4 is a diagram showing an example of a signal transmission waveform including two frequency components according to the present invention, and FIG. 5 is a frequency analysis diagram of the waveform in FIG. 4. , Figure 6 is the fourth
Figure 7 shows an example of a circuit for obtaining the waveform shown in Figure 7.
The figure shows another example of the circuit for obtaining the waveform of Figure 4, Figure 8 is a timing diagram of pulses applied to the control electrode of the thyristor in Figure 7, and Figure 9 is the frequency of high-voltage distribution line current. Diagram showing component analysis results, No. 10
The figure is a block diagram showing an example of a response signal receiving device according to the present invention, and FIG. 11 is a signal waveform diagram of each part. 1...Power distribution control console, 2...Controlled slave station, 3...
High-voltage automatic switch, 4...Signal injection device, 5...
Bus bar, 6... Pole transformer, 7, 10... Current transformer, 8... Answer signal receiving device, 11... Current voltage converter, 12, 13... LC filter, 14, 1
5, 18, 19...Amplifier, 16, 17...Filter, 20, 21...Detector, 22...Summing amplifier, 23...Comparator, 24...Reception relay.

Claims

[Scope of utility model registration request]

In a distribution line carrier control system, two different frequencies _f1 (=fc+f) and _f2 (=fc-f) are generated by continuing a current at a commercial frequency f in a distribution line with a control pulse at a frequency fc. A slave station response transmitter that transmits continuous response signals according to serial codes in which carrier frequency current signals are organized in the same time series, and a response signal transmitted from the slave station response transmitter via a power distribution line. and an answer signal receiving device which extracts each of the two carrier frequency components included in the answer signal, performs rectification detection, and then adds the detected waveforms of each frequency component to significantly detect a slave station answer. Slave station reply transmitting/receiving device.