CN108092269A - A kind of device with harmonics restraint - Google Patents
A kind of device with harmonics restraint Download PDFInfo
- Publication number
- CN108092269A CN108092269A CN201711215623.0A CN201711215623A CN108092269A CN 108092269 A CN108092269 A CN 108092269A CN 201711215623 A CN201711215623 A CN 201711215623A CN 108092269 A CN108092269 A CN 108092269A
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- China
- Prior art keywords
- harmonics restraint
- inductance
- capacitance
- matching unit
- coil
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention proposes a kind of device with harmonics restraint, the device with harmonics restraint includes machinery section air core coil, isolation compensating unit and resonance matching unit, wherein, the machinery section air core coil, the isolation compensating unit and the resonance matching unit are connected in parallel between track.The device with harmonics restraint of the present invention, can be effectively reduced harmonic wave, ensure the operation security of the railway system.
Description
Technical field
The invention belongs to railway electrification technical field, more particularly to a kind of device with harmonics restraint.
Background technology
Electric railway conductive interference is that uneven traction current has common transmission channel with track-circuit signalling, real
Border has unbalanced factor in the field causes the traction current in rail no longer equal, poor material is thus formed differential-mode current
It mould electric current and is formed receiving end rail surface voltage by terminal impedance and reaches indoor reception equipment, the differential-mode current that wherein traction current is formed
DC component, fundamental frequency and harmonic components will all have an impact track-circuit signalling.Therefore, track circuit equipment need from
Conductive interference is protected in terms of system design.
At present, for the DC component and fundamental frequency in traction current, by the choke transformer in station and adaptation is connect
The scheme of device (QSP) is protected, and specific wiring is as shown in Figure 1.Chokes in adapter and station including inductance coil and capacitance
Transformer connects.By taking 1700-2300 choke transformers in station as an example, after adapter is hung up, impedance frequency characteristic is in 50Hz
Zero point is formed, 1850Hz forms pole, and the standard requirement more than 17 Ω.Frequency is more than impedance presentation capacitive after 1850Hz,
The impedance of 4150Hz and 4450Hz for that can form aliasing reach 2.5 Ω or so, this is to 4150Hz and 4450Hz frequencies
Signal inhibition is bad.
The shortcomings that program is：
In fact, the use frequency of track circuit receiver can not possibly be infinitely great, when the harmonic frequency in traction current and
Using the timing of relation one of frequency, the aliasing of signal necessarily occurs, if the amount of high frequency aliasing is sufficiently high, it may occur that following existing
As：
(1) rail goes out and separated time collector voltage fluctuation；
The collection voltages signal fluctuation of microcomputer monitoring, triggers monitoring, alarming when violent.
(2) track circuit indoor reception equipment is fallen late；
Because harmonic wave interference voltage continues and is higher than the judgement thresholding of receiver, slow release time is more than specified value at this time, is caused
Interlocking cannot unlock.
The content of the invention
In view of the above-mentioned problems, the present invention proposes a kind of device with harmonics restraint, harmonic wave can be effectively reduced, is protected
Demonstrate,prove the operation security of the railway system.
The present invention provides a kind of devices with harmonics restraint, which is characterized in that the device with harmonics restraint
Including machinery section air core coil, isolation compensating unit and resonance matching unit, wherein,
It is described machinery section air core coil, it is described isolation compensating unit and the resonance matching unit be connected in parallel track it
Between.
Further, the machinery section air core coil includes the first resistor and the first inductance of series connection.
Further, the isolation compensating unit includes resonance circuit.
Further, the resonance circuit is：The first capacitance and the second inductance being connected in series；Or,
The resonance circuit is：Second capacitance and the series circuit of the 3rd inductance are in parallel with the 3rd capacitance.
Further, the resonance matching unit 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.
Since Low ESR is presented to the higher hamonic wave of 50Hz in the configuration parameter of machinery section air core coil, so the tool of the present invention
The device for having harmonics restraint had both filtered out the Hz noise of 50Hz, meanwhile, it and resonance matching unit (PT) are also realized together
The function of track circuit electrical insulation section, so as to filter out rail level 4150Hz~4450Hz voltages, and eliminates harmonic voltage
Caused monitoring fluctuation and relay delay the problem of putting.
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 the wiring diagram of choke transformer and adapter in station in the prior art；
Fig. 2 shows harmonics restraint overall architecture schematic diagram according to embodiments of the present invention；
Fig. 3 shows machinery section air core coil circuit structure signal in the device according to the present invention with harmonics restraint
Figure；
Fig. 4 shows resonance matching element circuit structure diagram in the device according to the present invention with harmonics restraint；
Fig. 5 shows that the first isolation compensating unit circuit structure shows in the device according to the present invention with harmonics restraint
It is intended to；
Fig. 6 shows that second of isolation compensating unit circuit structure shows in the device according to the present invention with harmonics restraint
It is intended to.
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.
It is existing to replace using machinery section air core coil (SVA ') and resonance matching unit (PT) in the embodiment of the present invention
Matching unit (BPLN) in standing.The former choke transformer position for keeping machinery section side is constant, by matching unit in station (BPLN)
It replaces with machinery section air core coil (SVA ') and resonance matching unit (PT), first compensating electric capacity replaces with isolation compensating unit
(DB)。
Specifically, as shown in Figure 1, the device with harmonics restraint includes machinery section air core coil (SVA '), resonance matching
Unit (PT) and isolation compensating unit (DB).Wherein, machinery section air core coil (SVA '), resonance matching unit (PT) and isolation are mended
Unit (DB) is repaid to be both connected between track.Meanwhile become as shown in Figure 1, being also associated with chokes adaptation between outdoor track
The spacing △ of depressor, compensating electric capacity, wherein compensating electric capacity can be set according to actual requirement of engineering, the present invention to this no longer
It repeats.
Resonance matching unit (PT) is connected by lightning protection device in SPT cables and house cable analog network/stand, and is passed through
It is connected with attenuator, receiver, and final realize is connected with track relay GJ.Wherein, SPT cables simulate net to house cable
Lightning protection device can realize the connection that total distance is 10km in network/stand.
Fig. 3 shows machinery section air core coil (SVA ') circuit knot in the device according to the present invention with harmonics restraint
Structure schematic diagram.As shown in the figure, there are one resistance R and an inductance L composition, the resistance electricity for machinery section air core coil (SVA ')
Resistance R and inductance L is connected in series.Machinery section air core coil (SVA ') can be cut by a diameter of 1.53mm, multiply electromagnetic wire coiling
Face can be 35mm2。
Fig. 4 shows resonance matching element circuit structure diagram in the device according to the present invention with harmonics restraint.
As shown in the figure,
Resonance matching unit includes tuning part, compatible portion.The compatible portion includes two inductance PTL and one
Transformer AFT, wherein one end of described two inductance PTL is connected respectively to the both ends of mono- coil of transformer AFT, it is described
The other end of two inductance PTL connects E1 and E2 ends respectively.
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 the way that a capacitance C4 and capacitance C5 is in parallel.The first end of tuning circuit is connected with a copper coin terminal U1；
And the other end is connected by inductance PTL2 with a copper coin terminal U2, wherein U1, U2 be box body foreign side copper connecting plate, for
The connection of other equipment or rail.When resonance matching unit be used for electrical insulation section when inductance PTL2 both ends (A as shown in the figure
End and B ends) connection copper connection of sheet, make its short circuit.When resonance matching unit be used for mechanical insulated joint when, it is necessary to remove side a and b
Between connection copper connection of sheet.
Fig. 5, Fig. 6, which are shown, isolates the signal of compensating unit circuit structure in the device according to the present invention with harmonics restraint
Figure.Isolate module composition of the compensating unit under the conditions of 4 kinds of carrier frequency and be divided into two kinds of situations, be respectively：For 1700Hz frequencies and
The CF signal of 2000Hz frequencies isolates the two elements topological structure that the design of compensating unit is connected using C1 with L1, such as Fig. 5 institutes
Show, isolation compensating unit includes capacitance C1 and inductance L1, and capacitance C1 and inductance L1 are connected in series；For 2300Hz frequencies and
The CF signal of 2600Hz frequencies, as shown in fig. 6, the design of isolation compensating unit is connected using C1 with L, then in parallel with C2 three
Element topological structure.
After the engineering construction scheme, for track circuit transmission passage, the power frequency that can inhibit 50Hz well is done
It disturbs and high subband rail surface voltage.After the program is tested at the scene, effect is clearly.
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 (10)
1. a kind of device with harmonics restraint, which is characterized in that it is hollow that the device with harmonics restraint includes machinery section
Coil, isolation compensating unit and resonance matching unit, wherein,
The machinery section air core coil, the isolation compensating unit and the resonance matching unit are connected in parallel between track.
2. the device according to claim 1 with harmonics restraint, which is characterized in that
The machinery section air core coil includes the first resistor and the first inductance of series connection.
3. the device according to claim 1 with harmonics restraint, which is characterized in that
The isolation compensating unit includes resonance circuit.
4. the device according to claim 3 with harmonics restraint, which is characterized in that
The resonance circuit is：The first capacitance and the second inductance being connected in series；Or,
The resonance circuit is：Second capacitance and the series circuit of the 3rd inductance are in parallel with the 3rd capacitance.
5. the device according to claim 1 with harmonics restraint, which is characterized in that
The resonance matching unit 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 transformer
The both ends of first coil.
6. the device according to claim 5 with harmonics restraint, which is characterized in that
The vibration branch includes the first capacitance and inductance, and first capacitance is connected in series with first inductance.
7. the device according to claim 5 with harmonics restraint, which is characterized in that
The both ends of second coil of transformer connect the second inductance respectively.
8. the device according to claim 5 or 6 with harmonics restraint, which is characterized in that
The first end and the 3rd inductance connection of the vibration branch.
9. the device according to claim 8 with harmonics restraint, which is characterized in that
The 3rd inductance both ends are connected with conducting wire.
10. according to any devices with harmonics restraint of claim 5-7, 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 |
|---|---|---|---|
| CN201711215623.0A CN108092269A (en) | 2017-11-28 | 2017-11-28 | A kind of device with harmonics restraint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215623.0A CN108092269A (en) | 2017-11-28 | 2017-11-28 | A kind of device with harmonics restraint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108092269A true CN108092269A (en) | 2018-05-29 |
Family
ID=62172350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215623.0A Pending CN108092269A (en) | 2017-11-28 | 2017-11-28 | A kind of device with harmonics restraint |
Country Status (1)
| Country | Link |
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| CN (1) | CN108092269A (en) |
Cited By (2)
| 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 |
| CN110829996A (en) * | 2019-11-14 | 2020-02-21 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | ZPW-2000A track circuit and inductance value obtaining method |
Citations (4)
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| CN2564431Y (en) * | 2002-05-24 | 2003-08-06 | 北京全路通信信号研究设计院 | Long transmission distance non-insulation rail 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 |
| CN204341095U (en) * | 2015-01-05 | 2015-05-20 | 中铁通信信号勘测设计（北京）有限公司 | A kind of tuning compensator of anti-crosstalk and track circuit |
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2017
- 2017-11-28 CN CN201711215623.0A patent/CN108092269A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2564431Y (en) * | 2002-05-24 | 2003-08-06 | 北京全路通信信号研究设计院 | Long transmission distance non-insulation rail 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 |
| CN204341095U (en) * | 2015-01-05 | 2015-05-20 | 中铁通信信号勘测设计（北京）有限公司 | A kind of tuning compensator of anti-crosstalk and track circuit |
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 (4)
| 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 |
| CN110829996A (en) * | 2019-11-14 | 2020-02-21 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | ZPW-2000A track circuit and inductance value obtaining method |
| CN110829996B (en) * | 2019-11-14 | 2023-11-17 | 北京铁路信号有限公司 | ZPW-2000A track circuit and inductance value acquisition method |
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Application publication date: 20180529 |