CN108082211A - A kind of track circuit interference preventer - Google Patents
A kind of track circuit interference preventer Download PDFInfo
- Publication number
- CN108082211A CN108082211A CN201711203513.2A CN201711203513A CN108082211A CN 108082211 A CN108082211 A CN 108082211A CN 201711203513 A CN201711203513 A CN 201711203513A CN 108082211 A CN108082211 A CN 108082211A
- Authority
- CN
- China
- Prior art keywords
- track circuit
- circuit interference
- inductance
- interference preventer
- tuning
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
- B61L1/18—Railway track circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
- B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
Abstract
The present invention relates to a kind of track circuit interference preventer, the track circuit interference preventer includes tuning part and compatible portion, wherein：The tuning part includes vibration branch and capacitive branch, and the vibration branch is connected in parallel with capacitive branch；The compatible portion includes transformer, two electrolytic capacitors, and described two electrolytic capacitors are connected to the both ends of the transformer first coil.The track circuit interference preventer of the present invention can be effectively reduced the cross-talk amount of adjacent area section, ensure the operation security of the railway system.
Description
Technical field
The invention belongs to railway field of circuit technology, more particularly to a kind of track circuit interference preventer.
Background technology
Resonance matching unit is the main trackside equipment of track circuit, the interface relationship signal in track circuit system
Figure is as shown in Figure 1.Lightning protection simulation network disk is sent out indoor frequency-shift signaling by E1, E2 terminal by railway digital signal cable
Resonance matching unit is given, after resonance matching unit is to the frequency-shift signaling processing of reception, passes through the ladle copper of U1, U2 terminal connection
Frequency-shift signaling is sent to rail by lead wire.In receiving terminal, rail will be received by rail and the shift frequency of railway roadbed attenuation letter
Number resonance matching unit is sent to by ladle copper lead wire, resonance matching unit will treated that frequency-shift signaling passes through E1, E2
Terminal and railway digital signal cable are sent to lightning protection simulation network disk.
Resonance matching unit is divided into tuning part and compatible portion at present.Wherein, tuning part by series resonance to neighbour
Zero impedance is presented in segment signals, and pole impedance is presented to local area segment signal by parallel resonance, realizes to the electrical of adjacent area segment signal
Isolation and stablizing for local area segment signal are transmitted；And compatible portion completes of rail impedance and cable resistance by matching transformer
With connection, the signal to rail output relatively high power is realized.
Under the conditions of some especial operations, such as lead wire since construction and installation difficulty does not close up setting, lead wire and gauge
When mismatch or multi-thread parallel long lead wire are set, zero impedance index is difficult to ensure that, adjacent area section cross-talk amount is caused to increase
Add.The increase of adjacent area section cross-talk amount can cause great security risk to the operation of the railway system.
The content of the invention
In view of the above-mentioned problems, the present invention proposes a kind of track circuit interference preventer, adjacent area can be effectively reduced
The cross-talk amount of section ensures the operation security of the railway system.
The present invention provides a kind of track circuit interference preventers, which is characterized in that the track circuit interference prevention
Device includes tuning part and compatible portion, wherein：
The tuning part includes vibration branch and capacitive branch, and the vibration branch is connected in parallel with capacitive branch；
The compatible portion includes transformer, two electrolytic capacitors, and described two electrolytic capacitors are connected to the change
The both ends of depressor first coil.
Further, the vibration branch includes the first capacitance and inductance, first capacitance and the first inductance string
Connection connection.
Further, the both ends of second coil of transformer connect the second inductance respectively.
Further, the first end and the 3rd inductance connection of the vibration branch.
Further, the 3rd inductance both ends are connected with conducting wire.
Further, the tuning part is connected by matching ladle copper track lead with rail.
The track circuit interference preventer inductance stabilization of the present invention, by reducing resonance matching unit active loss (iron
Damage and copper loss), reduce the active loss of trackside equipment lead wire to realize tuning area's Q values promotion, and reduce electrical insulation section zero and hinder
It is anti-, it is therefore prevented that the problem of adjacent area section cross-talk amount increase occur, it is ensured that the operation security of the railway system.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments, for those of ordinary skill in the art, without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is shown according to connection diagram of the resonance matching unit in track circuit system in the prior art；
Fig. 2 shows three element tuning circuit structure diagrams according to embodiments of the present invention；
Fig. 3 shows reactive loss electrical block diagram in tuning area according to embodiments of the present invention；
Fig. 4 shows electrical insulation section zero pole plot according to embodiments of the present invention；
Fig. 5 shows resonance matching element circuit schematic diagram according to embodiments of the present invention.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely illustrated, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work belong to the scope of protection of the invention.
In general, tuning section length increases, the parallel resonance impedance for tuning area is consequently increased, so as to reduce this section letter
Number attenuation；Meanwhile it tunes section length increase and increase is tuned into branch dead zone length in area, it can be seen that, tuning section length should
Comprehensive circuit types and steel rail parameter many factors, comparing appropriately distance should be between 25-35m.
Track circuit interference preventer includes tuning part and trackside lead wire, and wherein tuning part includes tuning electricity
Road.Three element tuning circuit structure diagrams of the embodiment of the present invention as shown in Figure 1, the tuning circuit include what is be connected in series
Capacitance C and inductance L, capacitance C and inductance L-shaped are into an oscillating circuit.The oscillating circuit is in parallel with a capacitance C0, so as to be formed
The tuning circuit.
As Fig. 3 shows reactive loss electrical block diagram in tuning area.For local area segment signal f0, choose 3 respectively,
4 ends and 1,2 ends regard inbound port for tuning area pole impedance and zero impedance, i.e., for signal f0, electrical insulation section is humorous in 3,4 end parallel connections
It shakes (in high-impedance state, theory is infinity ∞)；And realize that (in low resistive state, 0) theory is to series resonance at 1,2 ends.Fig. 3
In, the Lv1 rail impedance of area (half tuning), Lv2 (rail impedance in half of tuning area), Lca (track lead impedance),
LSVA(air cored coil inductors impedance) is known quantity.BUP (tuning area pole impedance), BU0 (tuning area's zero impedance) are unknown quantitys.
Electrical insulation section circuit zero pole point as shown in figure 4, there are relational expression f2*f4=2*f3, in figure be zero point, × be
Pole.Resonant circuit impedance is presented as infinity in f2 and f4, is presented as 0 in f3.For each frequency, there are above-mentioned sides
Journey can solve three component parameters of resonance matching unit.
In the design process of tuning circuit, (such as there is tiny fragments of stone, coal, etc. roadbed, without tiny fragments of stone, coal, etc. roadbed and nothing for different rail type
Tiny fragments of stone, coal, etc. bridge etc.) corresponding parameter is set.Such as there is tiny fragments of stone, coal, etc. roadbed, capacitance C0 is arranged to 140uf or so, capacitance C is arranged to
50uf or so, inductance L are arranged to 90uf or so；And for no tiny fragments of stone, coal, etc. bridge, capacitance C0 is arranged to 150uf or so, capacitance C is arranged to
50uf or so, inductance L are arranged to 80uf or so.
By adjusting tuning section length so that tuning area's interior rail inductance value is close to there is tiny fragments of stone, coal, etc. roadbed, so as to ensure electrically
The zero pole point position of insulation joint.Because non-fragment orbit inductance generally below has tiny fragments of stone, coal, etc. roadbed, tuning section length will increase, cause
It tunes area's Q values to decline, so as to reduce transmission limit length
Track circuit interference preventer includes compatible portion and tuning part, as shown in Figure 5.The compatible portion includes
A two inductance PTL and transformer AFT, wherein one end of described two inductance PTL is connected respectively to the transformer AFT
The both ends of one coil, the other end of described two inductance PTL generate or receive E1 and E2 signals.
The one end of the both ends of another coil of the transformer AFT respectively with electrolytic capacitor C1, C2 is connected, electrolytic capacitor C1
Isolated DC electric current is used for electrolytic capacitor C2.The other end of electrolytic capacitor C1 and tuning part inside resonance matching unit and
It is connected with part connection terminal V1 ends, the other end and tuning part inside resonance matching unit and the compatible portion of electrolytic capacitor C2
Connection terminal V2 ends connect.
The tuning part includes tuning circuit, and tuning circuit includes the vibration electricity that inductance TL1 and capacitance C3 are in series
Road and by forming capacitance C0 by a capacitance C4 and capacitance C5 is in parallel.The first segment of tuning circuit and a copper coin
Terminal connects, for generating or receiving U1 signals；And the other end is connected by inductance PTL2 with a copper coin terminal, for generating
Or receive U2 signals.When resonance matching unit be used for electrical insulation section when at the both ends of inductance PTL2 (side a and b as shown in the figure)
Connecting wire makes its short circuit.When resonance matching unit be used for mechanical insulated joint when, it is necessary to which the connection between removing side a and b is led
Line, using the equivalent steel rail parameters instead of electrical insulation section of PTL2, no matter the purpose is to resonance matching units uses electrical exhausted
At edge section or mechanical insulated joint, the electrical characteristic that can maintain like.
Connecting line for the resonance matching unit to be connected with rail can select 54 copper steel copper-clad lead wire two-wires.
It by resonance matching unit and the compatibility design of ladle copper track lead, realizes that tuning area's Q values are promoted, and reduces electrical exhausted
Edge section zero impedance.
Although the present invention is described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should manage
Solution：It can still modify to the technical solution recorded in foregoing embodiments or to which part technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The spirit and scope of scheme.
Claims (6)
1. a kind of track circuit interference preventer, which is characterized in that the track circuit interference preventer includes tuner section
Point and compatible portion, wherein：
The tuning part includes vibration branch and capacitive branch, and the vibration branch is connected in parallel with capacitive branch；
The compatible portion includes transformer, two electrolytic capacitors, and described two electrolytic capacitors are connected to the transformer
The both ends of first coil.
2. track circuit interference preventer according to claim 1, which is characterized in that
The vibration branch includes the first capacitance and inductance, and first capacitance is connected in series with first inductance.
3. track circuit interference preventer according to claim 1, which is characterized in that
The both ends of second coil of transformer connect the second inductance respectively.
4. track circuit interference preventer according to claim 1 or 2, which is characterized in that
The first end and the 3rd inductance connection of the vibration branch.
5. track circuit interference preventer according to claim 4, which is characterized in that
The 3rd inductance both ends are connected with conducting wire.
6. according to any track circuit interference preventers of claim 1-3, which is characterized in that
The tuning part is connected by matching ladle copper track lead with rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203513.2A CN108082211A (en) | 2017-11-27 | 2017-11-27 | A kind of track circuit interference preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203513.2A CN108082211A (en) | 2017-11-27 | 2017-11-27 | A kind of track circuit interference preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108082211A true CN108082211A (en) | 2018-05-29 |
Family
ID=62173235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711203513.2A Pending CN108082211A (en) | 2017-11-27 | 2017-11-27 | A kind of track circuit interference preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108082211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278798A (en) * | 2018-09-28 | 2019-01-29 | 北京全路通信信号研究设计院集团有限公司 | A kind of track circuit guard system |
| CN113353120A (en) * | 2021-07-16 | 2021-09-07 | 固安信通信号技术股份有限公司 | Tuning equipment |
| CN116534091A (en) * | 2023-07-06 | 2023-08-04 | 北京和利时系统工程有限公司 | Method for realizing adjacent line interference analysis, computer storage medium and terminal |
Citations (6)
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|---|---|---|---|---|
| US4622522A (en) * | 1984-07-27 | 1986-11-11 | Compagne De Signaux Et D'entreprises Electriques | Track circuit for AC electrified railways |
| EP1277641A1 (en) * | 2001-07-20 | 2003-01-22 | Alstom Belgium S.A. | Equipment device for railway tracks |
| CN2601909Y (en) * | 2002-05-24 | 2004-02-04 | 北京全路通信信号研究设计院 | Equally spaced compensating capacitance tuning type non-insulated track circuit |
| CN2609811Y (en) * | 2002-05-24 | 2004-04-07 | 北京全路通信信号研究设计院 | Mechanical insulation joint track circuit device |
| CN101973287A (en) * | 2010-09-30 | 2011-02-16 | 北京全路通信信号研究设计院 | Non-insulation track circuit |
| CN108092487A (en) * | 2017-11-14 | 2018-05-29 | 北京全路通信信号研究设计院集团有限公司 | Inhibit the device of track circuit harmonic wave |
-
2017
- 2017-11-27 CN CN201711203513.2A patent/CN108082211A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4622522A (en) * | 1984-07-27 | 1986-11-11 | Compagne De Signaux Et D'entreprises Electriques | Track circuit for AC electrified railways |
| EP1277641A1 (en) * | 2001-07-20 | 2003-01-22 | Alstom Belgium S.A. | Equipment device for railway tracks |
| CN2601909Y (en) * | 2002-05-24 | 2004-02-04 | 北京全路通信信号研究设计院 | Equally spaced compensating capacitance tuning type non-insulated track circuit |
| CN2609811Y (en) * | 2002-05-24 | 2004-04-07 | 北京全路通信信号研究设计院 | Mechanical insulation joint track circuit device |
| CN101973287A (en) * | 2010-09-30 | 2011-02-16 | 北京全路通信信号研究设计院 | Non-insulation track circuit |
| CN108092487A (en) * | 2017-11-14 | 2018-05-29 | 北京全路通信信号研究设计院集团有限公司 | Inhibit the device of track circuit harmonic wave |
Non-Patent Citations (1)
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| 何辉: "浅谈ZPW-2000A 轨道电路调整存在的问题及对策", 《铁道通信信号》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278798A (en) * | 2018-09-28 | 2019-01-29 | 北京全路通信信号研究设计院集团有限公司 | A kind of track circuit guard system |
| WO2020063337A1 (en) * | 2018-09-28 | 2020-04-02 | 北京全路通信信号研究设计院集团有限公司 | Track circuit protection system |
| CN113353120A (en) * | 2021-07-16 | 2021-09-07 | 固安信通信号技术股份有限公司 | Tuning equipment |
| CN116534091A (en) * | 2023-07-06 | 2023-08-04 | 北京和利时系统工程有限公司 | Method for realizing adjacent line interference analysis, computer storage medium and terminal |
| CN116534091B (en) * | 2023-07-06 | 2023-10-27 | 北京和利时系统工程有限公司 | Method for realizing adjacent line interference analysis, computer storage medium and terminal |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180529 |