CN107985338A - Adapter, device for suppressing track circuit harmonic - Google Patents
Adapter, device for suppressing track circuit harmonic Download PDFInfo
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- CN107985338A CN107985338A CN201711120502.8A CN201711120502A CN107985338A CN 107985338 A CN107985338 A CN 107985338A CN 201711120502 A CN201711120502 A CN 201711120502A CN 107985338 A CN107985338 A CN 107985338A
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- choke transformer
- filter circuit
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- adapter
- capacity cell
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- 230000001939 inductive effect Effects 0.000 claims description 23
- 230000011664 signaling Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000002401 inhibitory effect Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 10
- 230000001629 suppression Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 230000001934 delay Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
- H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0038—Circuits or arrangements for suppressing, e.g. by masking incorrect turn-on or turn-off signals, e.g. due to current spikes in current mode control
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Filters And Equalizers (AREA)
Abstract
The embodiment of the invention provides an adapter, which is connected with a choke transformer, wherein the choke transformer is arranged in a track circuit, and the adapter comprises a first filter circuit for inhibiting higher harmonics and a second filter circuit connected with the secondary side of the choke transformer; the second filter circuit is used for inhibiting power frequency interference and is connected with the secondary side of the choke transformer; the first filter circuit and the second filter circuit are combined in parallel, and the first filter circuit and the second filter circuit after being connected in parallel can form impedance higher than a first threshold value for frequency shift signals on the track circuit. The adapter provided by the embodiment of the invention can solve the technical problems of monitoring fluctuation and relay slow-release caused by harmonic voltage. The embodiment of the invention also provides a device for inhibiting the harmonic wave of the track circuit.
Description
Technical field
The present invention relates to field of track traffic, more particularly to a kind of adapter, the device of suppression track circuit harmonic wave.
Background technology
The circuit that track circuit is made of steel rail line and rail insulation, for it is automatic, whether continuously detect this section of circuit
Taken by rolling stock, be also used for control signal device or switching device, to ensure the equipment of traffic safety.It is as shown in Figure 1, electric
Electrified railway conductive interference, namely the signal code of uneven traction current and track circuit have common transmission channel.
In practical application, having unbalanced factor causes the traction current in rail no longer equal, poor material is thus formed differential-mode current
Mould electric current and receiving end rail surface voltage is formed by terminal impedance, receiving end rail surface voltage reaches indoor reception equipment, wherein traction current shape
Into DC component, fundamental frequency and the harmonic components of differential-mode current the signal code of track circuit will all be had an impact, because
This, track circuit equipment needs to protect conductive interference in terms of system design.
With reference to figure 2, at present, for the harmonic components suppressed in traction current, chokes are set to become typically by station
Depressor simultaneously connects the scheme of adapter (QSP) and is protected.By taking 1700Hz-2300Hz chokes in station become as an example, adapter (QSP) is hung
After upper, impedance frequency characteristic as shown in figure 3, frequency in 50Hz, impedance forms zero point；During frequency 1850Hz, impedance is formed
Limit, and the standard requirement more than 17 Ω.After frequency is more than 1850Hz, capacitive is presented in impedance, for that can form aliasing
The impedance of 4150Hz and 4450Hz reaches 2.5 Ω or so, therefore, signal of the existing adapter to 4150Hz-4450Hz frequencies
Inhibition is bad.Since the use frequency of track circuit receiving device can not possibly be infinitely great, when the harmonic wave frequency in traction current
Rate and the timing of relation one using frequency, necessarily occur the aliasing of signal, if the amount of high frequency aliasing is sufficiently high, it may occur that as follows
Phenomenon：(1) rail goes out and separated time collector voltage fluctuation, the collection voltages signal fluctuation of microcomputer monitoring, initiation monitoring report when violent
It is alert；(2) receiver delay is fallen：Because harmonic wave interference voltage continues and is higher than the judgement thresholding of receiver, slow release time surpasses at this time
Setting is crossed, causes interlocking to unlock.
The content of the invention
The embodiment of the present invention provides a kind of adapter, delays what is put to monitor fluctuation and relay caused by harmonic carcellation voltage
Technical problem.
Technical solution is as follows：
A kind of adapter, is connected with choke transformer, and the choke transformer is installed in track circuit, the adapter
Including：
For suppressing the first filter circuit of higher hamonic wave, it is connected with the secondary side of the choke transformer；
For suppressing the second filter circuit of Hz noise, it is connected with the secondary side of the choke transformer；
First filter circuit and the second filter circuit parallel combination, it is in parallel after first filter circuit with
Second filter circuit can form the frequency-shift signaling on the track circuit impedance higher than first threshold.
Preferably, in above-mentioned adapter, first filter circuit includes the capacitance component and Inductive component of series connection；
The first end of the capacitance component is connected with the secondary side of the choke transformer, the second end of the capacitance component
It is connected with the first end of the Inductive component, the second end of the Inductive component is connected with the secondary side of the choke transformer.
Preferably, in above-mentioned adapter, capacitance component includes the first resistor element and the first capacity cell of series connection,
Inductive component includes the second resistance element and the first inductance element of series connection；
The first end of the first resistor element is connected with the secondary side of the choke transformer, the first resistor element
Second end be connected with the first end of first capacity cell, the second end of first capacity cell and the second resistance
The first end connection of element, the second end of the second resistance element is connected with the first end of first inductance element, described
The second end of first inductance element is connected with the secondary side of the choke transformer.
Preferably, in above-mentioned adapter, second filter circuit includes the second inductance element and second of series connection
Capacity cell；
The first end of second inductance element is connected with the secondary side of the choke transformer, second inductance element
Second end be connected with the first end of second capacity cell, the second end of second capacity cell and the chokes transformation
The secondary side connection of device.
Preferably, in above-mentioned adapter, discharge resistance is further included, the second end of second capacity cell passes through institute
The secondary side that discharge resistance is stated with the choke transformer is connected.
The embodiment of the present invention also provides a kind of device for suppressing track circuit harmonic wave, including：Choke transformer, adapter；
The choke transformer is installed in track circuit, and the adapter includes：
For suppressing the first filter circuit of higher hamonic wave, it is connected with the secondary side of the choke transformer；
For suppressing the second filter circuit of Hz noise, it is connected with the secondary side of the choke transformer；
First filter circuit and the second filter circuit parallel combination, it is in parallel after first filter circuit with
Second filter circuit can form the frequency-shift signaling on the track circuit impedance higher than first threshold.
Preferably, in the device of above-mentioned suppression track circuit harmonic wave, first filter circuit includes the electricity of series connection
Hold component and Inductive component；
The first end of the capacitance component is connected with the secondary side of the choke transformer, the second end of the capacitance component
It is connected with the first end of the Inductive component, the second end of the Inductive component is connected with the secondary side of the choke transformer.
Preferably, in the device of above-mentioned suppression track circuit harmonic wave, capacitance component includes the first resistor member of series connection
Part and the first capacity cell, Inductive component include the second resistance element and the first inductance element of series connection；
The first end of the first resistor element is connected with the secondary side of the choke transformer, the first resistor element
Second end be connected with the first end of first capacity cell, the second end of first capacity cell and the second resistance
The first end connection of element, the second end of the second resistance element is connected with the first end of first inductance element, described
The second end of first inductance element is connected with the secondary side of the choke transformer.
Preferably, in the device of above-mentioned suppression track circuit harmonic wave, second filter circuit includes the of series connection
Two inductance elements and the second capacity cell；
The first end of second inductance element is connected with the secondary side of the choke transformer, second inductance element
Second end be connected with the first end of second capacity cell, the second end of second capacity cell and the chokes transformation
The secondary side connection of device.
Preferably, in the device of above-mentioned suppression track circuit harmonic wave, discharge resistance, the second capacitance member are further included
The second end of part is connected by the discharge resistance with the secondary side of the choke transformer.
The embodiment of the present invention provides a kind of adapter, is connected with choke transformer, choke transformer is installed on track circuit
In, adapter includes being used for the first filter circuit for suppressing higher hamonic wave, is connected with the secondary side of choke transformer；For suppressing
Second filter circuit of Hz noise, is connected with the secondary side of choke transformer；First filter circuit and the second filter circuit are simultaneously
Connection combination, it is in parallel after the first filter circuit the frequency-shift signaling on track circuit can be formed with the second filter circuit and be higher than the
The impedance of one threshold value.Adapter provided in an embodiment of the present invention monitoring fluctuation and relay can delay caused by harmonic carcellation voltage
The technical problem put.
Brief description of the drawings
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, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the schematic diagram of existing electric railway conductive interference；
Fig. 2 is the connection diagram of existing adapter and choke transformer；
After Fig. 3 is combined by the existing adapter provided with choke transformer, the impedance frequency of choke transformer primary side
Characteristic；
A kind of structure diagram for the adapter that Fig. 4 is provided by the embodiment of the present invention；
A kind of structure diagram for the first filter circuit that Fig. 5 is provided by the embodiment of the present invention；
A kind of structure diagram for the second filter circuit that Fig. 6 is provided by the embodiment of the present invention；
A kind of structure diagram for the adapter that Fig. 7 is provided by the embodiment of the present invention；
After the adapter that Fig. 8 is provided by the embodiment of the present invention is combined with choke transformer, choke transformer primary side
Impedance frequency characteristic；
The device for the suppression track circuit harmonic wave that Fig. 9 is provided by the embodiment of the present invention.
Embodiment
In order to enable the object, technical solutions and advantages of the present invention become apparent, root is described in detail below with reference to accompanying drawings
According to example embodiments of the present invention.Obviously, described embodiment is only the part of the embodiment of the present invention, rather than this hair
Bright whole embodiments, it should be appreciated that the limitation of the invention from example embodiment described herein.Based on reality described herein
Example is applied, those skilled in the art's obtained all other embodiment in the case where not making the creative labor should all be fallen into
Within protection scope of the present invention.In the present description and drawings, will use the same reference numerals to represent substantially the same
Element and function, and the duplicate explanation by omission to these elements and function.In addition, for clarity and brevity, it is convenient to omit
For the explanation of function known in the art and construction.
In order to solve at present, an embodiment of the present invention provides a kind of adapter, to monitor ripple caused by harmonic carcellation voltage
Dynamic and relay delays the technical problem put.
The adapter provided below the embodiment of the present invention is introduced.
With reference to figure 4, Fig. 4 illustrates a kind of structure diagram of adapter, and adapter 1' is connected with choke transformer 2',
Choke transformer 2' is installed in track circuit, and adapter 1' includes the first filter circuit 11, the second filter circuit 12.First filter
Wave circuit 11, for suppressing higher hamonic wave, is connected with the secondary side of choke transformer 2'；Second filter circuit 12, for suppressing
Hz noise, is connected with the secondary side of choke transformer 2'；12 parallel combination of first filter circuit 11 and the second filter circuit, and
The first filter circuit 11 and the second filter circuit 12 after connection, which can be formed the frequency-shift signaling on track circuit, is higher than the first threshold
The impedance of value.Wherein, first threshold is not reduce the threshold value of track circuit receiving-end impedance, if first threshold can be 17 Ω.
Above-mentioned track circuit can be the train system of single type, such as subway system, inter-city passenger rail system, high ferro system
System, ordinary train system etc..Track circuit can also be that mixed type train system, such as high ferro train are combined with ordinary train
System.The choke transformer of the present invention can be applied to not by those skilled in the art on the basis of the principle of the invention is understood
Same track circuit.
With reference to figure 5, the first filter circuit can include the capacitance component 111 and Inductive component 112 of series connection.Capacitance component
The secondary side of first end and choke transformer connects, and the second end of capacitance component and the first end of Inductive component connect, inductance group
The second end of part is connected with the secondary side of the choke transformer.Capacitance component 111 includes the first resistor element and the of series connection
One capacity cell C1, Inductive component 112 include the second resistance element and the first inductance component L 1 of series connection；First resistor element
The secondary side of first end and choke transformer connects, and the second end of first resistor element and the first end of the first capacity cell C1 connect
Connect, the second end of the first capacity cell C1 is connected with the first end of second resistance element, the second end of second resistance element and the
The first end connection of one inductance component L 1, the second end of the first inductance component L 1 and the secondary side of choke transformer connect.
With reference to figure 6, the second filter circuit includes the second inductance component L 2 and the second capacity cell C2 of series connection.Second inductance
The first end of element L2 and the secondary side of choke transformer connect, the second end of the second inductance component L 2 and the second capacity cell C2
First end connection, the secondary side of the second end of the second capacity cell C2 and choke transformer connects.Above-mentioned second filter circuit
It is connected with the secondary side of choke transformer, and it is in parallel with the first filter circuit.
With reference to figure 7, Fig. 7 shows a kind of structure diagram that adapter is connected with choke transformer.In Fig. 7, I represents to grip
The primary side of convertor transformer 2', II represents the secondary side of choke transformer 2', and 1-12 represents the terminal of choke transformer 2' respectively.
Adapter 1' is composed in parallel by two filter circuits, wherein, the first filtered electrical that first resistor, C1, second resistance and L1 are formed
Road is used to suppress higher hamonic wave, and the wire connection terminal of extraction is connected in parallel at 10,11 terminals of choke transformer 2' secondary sides, i.e., 16 circles
Position.Second filter circuit of C2 and L2 compositions, series resonance is formed so as to produce Low ESR to the 50Hz signals of traction current,
The wire connection terminal of extraction is connected in parallel on 4,12 terminals of choke transformer 2' secondary sides.Further, in other implementations of the present invention
In example, adapter further includes discharge resistance RD, may be referred to Fig. 7, and the second end of the second capacity cell C2 passes through discharge resistance RD
It is connected with the secondary side of choke transformer 2', is connected to 12 terminals of choke transformer 2' secondary sides.
As shown in figure 8, after choke transformer is combined with adapter, the impedance frequency characteristic of choke transformer primary side：
At frequency 50Hz and frequency 4300Hz, the impedance of choke transformer primary side forms zero impedance, and pole impedance is formed at frequency 1850Hz.
After frequency is more than 1850Hz, capacitive is presented in impedance, can thus reduce Track Circuit Frequency-shift Signal and form aliasing
The impedance of 4150Hz and 4450Hz interference signals, makes it be reduced to 0.4 below Ω, and original old adapter is in the impedance of the frequency range
For 2.5 Ω, therefore, under the influence of identical DM EMI electric current, after the adapter that installation diagram 7 is provided, it is passed to indoor
Rail surface voltage is disturbed to reduce by 6 times than existing interference rail surface voltage.Therefore, for track circuit transmission passage, using this hair
Bright adapter, can not only suppress the Hz noise of 50Hz well, but also maintain high impedance to frequency-shift signaling, so that not
Track circuit is reduced by terminal impedance, delays the technical problem put to monitor fluctuation and relay caused by harmonic carcellation voltage.
In addition, after the adapter of the present invention hangs up choke transformer, indices meet《Passenger dedicated railway line signal
The provisional technical conditions of product》In to chokes become index request.
With reference to figure 9, the embodiment of the present invention also provides a kind of device for suppressing track circuit harmonic wave, including：Choke transformer
2', adapter 1'.Choke transformer 2' is installed in track circuit, and adapter 1' includes：
For suppressing the first filter circuit 11 of higher hamonic wave, it is connected with the secondary side of choke transformer 2'；
For suppressing the second filter circuit 12 of Hz noise, it is connected with the secondary side of choke transformer 2'；
12 parallel combination of first filter circuit 11 and the second filter circuit, the first filter circuit 11 and the second filter after parallel connection
Wave circuit 12 can form the frequency-shift signaling on track circuit the impedance higher than first threshold.
In other embodiments of the invention, above-mentioned first filter circuit includes the capacitance component and Inductive component of series connection；
The secondary side of the first end of capacitance component and choke transformer connects, the second end of capacitance component and Inductive component
First end connects, and the second end of Inductive component and the secondary side of choke transformer connect.
In other embodiments of the invention, above-mentioned capacitance component includes the first resistor element and the first capacitance member of series connection
Part, Inductive component include the second resistance element and the first inductance element of series connection；
The secondary side of the first end of first resistor element and choke transformer connects, the second end of first resistor element and the
The first end connection of one capacity cell, the second end of the first capacity cell are connected with the first end of second resistance element, the second electricity
The second end of resistance element is connected with the first end of the first inductance element, the second end of the first inductance element and the two of choke transformer
Secondary side connection.
In other embodiments of the invention, above-mentioned second filter circuit includes the second inductance element and the second electricity of series connection
Hold element；
The secondary side of the first end of second inductance element and choke transformer connects, the second end of the second inductance element and the
The first end connection of two capacity cells, the second end of the second capacity cell and the secondary side of choke transformer connect.
In other embodiments of the invention, discharge resistance is further included, the second end of the second capacity cell passes through the electricity that discharges
Resistance is connected with the secondary side of choke transformer.
After choke transformer is combined with adapter, as shown in figure 8, the impedance frequency characteristic of choke transformer primary side is：
At frequency 50Hz and frequency 4300Hz, the impedance of choke transformer primary side forms zero impedance, and pole resistance is formed at frequency 1850Hz
It is anti-.After frequency is more than 1850Hz, capacitive is presented in impedance, can thus reduce Track Circuit Frequency-shift Signal and form aliasing
The impedance of 4150Hz and 4450Hz interference signals, makes it be reduced to 0.4 below Ω, and original old adapter is in the impedance of the frequency range
For 2.5 Ω, therefore, under the influence of identical DM EMI electric current, choke transformer and adapter group that installation diagram 8 is provided
After conjunction, 6 times can be reduced than existing interference rail surface voltage by being passed to indoor interference rail surface voltage.Therefore, passed for track circuit
Defeated passage, choke transformer using the present invention are combined with adapter, can both suppress the Hz noise of 50Hz well, at the same time
High impedance is maintained to frequency-shift signaling again, so that track circuit is not reduced by terminal impedance, with monitoring caused by harmonic carcellation voltage
Fluctuation and relay delay the technical problem put.
It should be noted that：
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area
Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature
Close and combine.In addition, term " first ", " second " are only used for description purpose, and it is not intended that indicating or implying relatively important
Property or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Person implicitly includes at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two,
Three etc., unless otherwise specifically defined.
Those skilled in the art should understand that be：The above embodiments are only used to illustrate the technical solution of the present invention., and
It is non-that it is limited；Although the present invention is described in detail with reference to foregoing embodiments, those skilled in the art can
To modify to the technical solution described in foregoing embodiments, either which part or all technical characteristic are carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of claims of the present invention.
Claims (10)
- A kind of 1. adapter, it is characterised in that it is connected with choke transformer, the choke transformer is installed in track circuit, The adapter includes：For suppressing the first filter circuit of higher hamonic wave, it is connected with the secondary side of the choke transformer；For suppressing the second filter circuit of Hz noise, it is connected with the secondary side of the choke transformer；First filter circuit and the second filter circuit parallel combination, first filter circuit and second after parallel connection Filter circuit can form the frequency-shift signaling on the track circuit impedance higher than first threshold.
- 2. adapter according to claim 1, it is characterised in that first filter circuit includes the capacitance component of series connection And Inductive component；The first end of the capacitance component is connected with the secondary side of the choke transformer, the second end of the capacitance component and institute The first end connection of Inductive component is stated, the second end of the Inductive component is connected with the secondary side of the choke transformer.
- 3. adapter according to claim 2, it is characterised in that capacitance component includes the first resistor element and the of series connection One capacity cell, Inductive component include the second resistance element and the first inductance element of series connection；The first end of the first resistor element is connected with the secondary side of the choke transformer, and the of the first resistor element Two ends are connected with the first end of first capacity cell, the second end of first capacity cell and the second resistance element First end connection, the second end of the second resistance element is connected with the first end of first inductance element, described first The second end of inductance element is connected with the secondary side of the choke transformer.
- 4. adapter according to claim 1, it is characterised in that second filter circuit includes the second inductance of series connection Element and the second capacity cell；The first end of second inductance element is connected with the secondary side of the choke transformer, and the of second inductance element Two ends are connected with the first end of second capacity cell, second end and the choke transformer of second capacity cell Secondary side connects.
- 5. adapter according to claim 4, it is characterised in that discharge resistance is further included, second capacity cell Second end is connected by the discharge resistance with the secondary side of the choke transformer.
- A kind of 6. device for suppressing track circuit harmonic wave, it is characterised in that including：Choke transformer, adapter；The chokes become Depressor is installed in track circuit, and the adapter includes：For suppressing the first filter circuit of higher hamonic wave, it is connected with the secondary side of the choke transformer；For suppressing the second filter circuit of Hz noise, it is connected with the secondary side of the choke transformer；First filter circuit and the second filter circuit parallel combination, first filter circuit and second after parallel connection Filter circuit can form the frequency-shift signaling on the track circuit impedance higher than first threshold.
- 7. device according to claim 6, it is characterised in that first filter circuit include series connection capacitance component and Inductive component；The first end of the capacitance component is connected with the secondary side of the choke transformer, the second end of the capacitance component and institute The first end connection of Inductive component is stated, the second end of the Inductive component is connected with the secondary side of the choke transformer.
- 8. device according to claim 7, it is characterised in that capacitance component includes the first resistor element and first of series connection Capacity cell, Inductive component include the second resistance element and the first inductance element of series connection；The first end of the first resistor element is connected with the secondary side of the choke transformer, and the of the first resistor element Two ends are connected with the first end of first capacity cell, the second end of first capacity cell and the second resistance element First end connection, the second end of the second resistance element is connected with the first end of first inductance element, described first The second end of inductance element is connected with the secondary side of the choke transformer.
- 9. device according to claim 6, it is characterised in that second filter circuit includes the second inductance member of series connection Part and the second capacity cell；The first end of second inductance element is connected with the secondary side of the choke transformer, and the of second inductance element Two ends are connected with the first end of second capacity cell, second end and the choke transformer of second capacity cell Secondary side connects.
- 10. device according to claim 9, it is characterised in that further include discharge resistance, the of second capacity cell Two ends are connected by the discharge resistance with the secondary side of the choke transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120502.8A CN107985338B (en) | 2017-11-14 | 2017-11-14 | Adapter, device for suppressing track circuit harmonic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120502.8A CN107985338B (en) | 2017-11-14 | 2017-11-14 | Adapter, device for suppressing track circuit harmonic |
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| Publication Number | Publication Date |
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| CN107985338A true CN107985338A (en) | 2018-05-04 |
| CN107985338B CN107985338B (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711120502.8A Active CN107985338B (en) | 2017-11-14 | 2017-11-14 | Adapter, device for suppressing track circuit harmonic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115173831A (en) * | 2022-09-06 | 2022-10-11 | 北京和利时***工程有限公司 | Track circuit impedance matching device and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143849A (en) * | 1995-08-18 | 1997-02-26 | 郭宝库 | High-low voltage capacitor complete compensator |
| CN101032971A (en) * | 2007-04-27 | 2007-09-12 | 北京交通大学 | Audio frequency orbit circuit impedance matching circuit in station |
-
2017
- 2017-11-14 CN CN201711120502.8A patent/CN107985338B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143849A (en) * | 1995-08-18 | 1997-02-26 | 郭宝库 | High-low voltage capacitor complete compensator |
| CN101032971A (en) * | 2007-04-27 | 2007-09-12 | 北京交通大学 | Audio frequency orbit circuit impedance matching circuit in station |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115173831A (en) * | 2022-09-06 | 2022-10-11 | 北京和利时***工程有限公司 | Track circuit impedance matching device and system |
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| Publication number | Publication date |
|---|---|
| CN107985338B (en) | 2020-10-23 |
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