CN110139429A - A kind of tunnel redundant direct current power supply system and method for supplying power to - Google Patents
A kind of tunnel redundant direct current power supply system and method for supplying power to Download PDFInfo
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- CN110139429A CN110139429A CN201910355171.9A CN201910355171A CN110139429A CN 110139429 A CN110139429 A CN 110139429A CN 201910355171 A CN201910355171 A CN 201910355171A CN 110139429 A CN110139429 A CN 110139429A
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- power supply
- direct current
- tunnel
- bus
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Direct Current Feeding And Distribution (AREA)
Abstract
The present disclosure proposes a kind of tunnel redundant direct current power supply system and method for supplying power to, including the DC power supply fairing being in parallel, the end of incoming cables of the DC power supply fairing is connected to ac bus, the leading-out terminal of DC power supply fairing is connected to DC bus, 380V AC rectification is 400V high voltage direct current by the DC power supply fairing, the DC bus is powered to LED lamp, and the LED lamp includes DC-DC power source and LED light.It by 380V AC rectification is 400V high voltage direct current that the minimum system of the disclosure, which is AC/DC,.Communication lightning-protection device function is lightning protection, protects circuit, and A.C. contactor is responsible for controlling the starting and closing of the present apparatus, can satisfy the emergency lighting of first order load.
Description
Technical field
This disclosure relates to power supply technique field, more particularly to a kind of tunnel redundant direct current power supply system and method for supplying power to.
Background technique
Tunnel illumination still uses traditional AC distribution mode in distribution link at present, it may be assumed that every LED lamp is equipped with
One AC-DC power module drives LED light source.
There are two deficiencies for above-mentioned distribution system, one is the service life of AC-DC power module does not catch up with the longevity of LED light source
Life, in the life cycle of LED light source, will generally replace two to three secondary sources；The second is distribution line loss is very big.
Meanwhile power supply system transformer is the key link of power supply system, is the heart of tunnel power supply, once transformer damages
Bad, power supply system will be in paralyzed state, and the first order load emergency lighting in tunnel is not allowed, this problem of face,
The minimum system that needs to power is introduced into DC power-supply system.
Therefore, how to meet tunnel first order load on the basis of ensuring stability not allows powering-down requirements to be urgent need to resolve
Important technological problems.
Summary of the invention
In order to solve the deficiencies in the prior art, embodiment of the present disclosure provides a kind of tunnel redundant direct current power supply system,
The minimum system can be realized the power supply to tunnel illumination.
To achieve the goals above, the application uses following technical scheme:
A kind of tunnel redundant direct current power supply system, including the DC power supply fairing being in parallel, the DC power supply is whole
The end of incoming cables of stream device is connected to ac bus, and the leading-out terminal of DC power supply fairing is connected to DC bus, the direct current
380V AC rectification is 400V high voltage direct current by power rectifying equipment, and the DC bus is powered to LED lamp, described
LED lamp includes DC-DC power source and LED light.
Further technical solution, the DC power supply fairing include communication lightning-protection device, A.C. contactor and more arteries and veins
Rush Transformer Rectifier module, wherein the A.C. contactor is connected between ac bus and multiple-pulse Transformer Rectifier module, exchange
The end of incoming cables lead-out wire of contactor is grounded by communication lightning-protection device.
Further technical solution is also connected with more sidings on the DC bus.
Further technical solution, the ac bus are additionally coupled to case intraoral illumination circuit.
Further technical solution, case intraoral illumination circuit are exchange lighting loop, including breaker and exchange illumination
Lamps and lanterns.
Further technical solution, the DC power supply fairing being in parallel are placed in DC power cabinet.
Embodiment of the disclosure also discloses a kind of method of supplying power to of tunnel redundant direct current power supply system, comprising: will
380V AC rectification is that 400V high voltage direct current connects DC bus anode cathode, and the right line of left tunnel line gives emergency lighting direct current out
Loop power supply.
Embodiment of the disclosure also discloses a kind of tunnel redundant direct current power supply system, including two direct currents being in parallel
Transformer, 10kV high pressure are rectified into after 380V exchange through the outlet of low pressure feeder cabinet extremely after tunnel electric substation commutator transformer
EPS power supply, EPS power outlet end divide main power source inlet wire and backup power source inlet wire to enter tunnel redundant direct current power supply minimum system
Ac bus.
Further technical solution, two commutator transformers are placed in the same transformer cabinet side by side.
Embodiment of the disclosure also discloses a kind of method of supplying power to of tunnel redundant direct current power supply system, comprising:
Two commutator transformers are run simultaneously, under normal circumstances two common load sharings of transformer, when wherein one straight
Convertor transformer failure, another commutator transformer can undertake the load of a whole route completely；
10kV high pressure is rectified into 380V exchange, low pressure feeder cabinet outlet to EPS electricity after tunnel electric substation commutator transformer
Main power source inlet wire and backup power source inlet wire is divided to enter minimum system behind source, 380V AC rectification is 400V high pressure by minimum system
Direct current connects DC bus anode cathode, and the right line of left tunnel line is powered to emergency lighting DC loop out.
Compared with prior art, the beneficial effect of the disclosure is:
It by 380V AC rectification is 400V high voltage direct current that the minimum system of the disclosure, which is AC/DC,.Communication lightning-protection device function
It can be lightning protection, protect circuit, A.C. contactor is responsible for controlling the starting and closing of the present apparatus, can satisfy first order load
Emergency lighting.
The tunnel direct current lamps and lanterns of the disclosure, when using high voltage direct current power supply, by the AC-DC power supply of traditional LED lamp
Be divided into two parts: the part AC-DC is focused on a power supply box by the part AC-DC and the part DC-DC, the part DC-DC is retained
In LED lamp.This mode not only increases the efficiency of lamps and lanterns driving power, and also greatly improve power supply uses the longevity
Life, reduces maintenance cost；Meanwhile efficient power factor reduces the running cost of AC network.
Disclosure tunnel illumination is powered using high voltage direct current, and in order to ensure its stability, using minimum system, i.e., two straight
Convertor transformer is placed in the same transformer cabinet side by side, runs simultaneously, under normal circumstances two common load sharings of transformer, once one
Platform transformer fault, another can undertake the load of a whole route completely.
Detailed description of the invention
The Figure of description for constituting a part of this disclosure is used to provide further understanding of the disclosure, and the disclosure is shown
Meaning property embodiment and its explanation do not constitute the improper restriction to the disclosure for explaining the disclosure.
Fig. 1 is the minimum system electric hookup of embodiment of the present disclosure.
In the attached drawing, SPD is lightning protection device, and XS1XS2 is to indicate maintenance socket, and XZ indicates that the power supply of case intraoral illumination etc. is returned
Road.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the disclosure.Unless another
It indicates, all technical and scientific terms used herein has usual with disclosure person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the disclosure.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In a kind of typical embodiment of the disclosure, referring to figure 1, a kind of tunnel redundant direct current power supply is provided
System, 10kV high pressure are rectified into 380V exchange after tunnel electric substation power transformation device, and low pressure feeder cabinet outlet to EPS power supply (provides
Emergency service) after divide main power source inlet wire and backup power source inlet wire enters DC power cabinet minimum system, DC power supply rectifies at two
Device is exchanged with power maintenance AC socket (being indicated in attached drawing with XS1XS2), DC power cabinet intraoral illumination with electrically in parallel, and two
Place's DC power supply fairing output end is respectively connected to DC bus anode cathode, out the right line of left tunnel line to emergency lighting direct current
Circuit, and it is spare to add two circuits.
Specifically, DC power supply fairing is by groups such as communication lightning-protection device, A.C. contactor, multiple-pulse Transformer Rectifier modules
It is AC/DC at, multiple-pulse Transformer Rectifier functions of modules by 380V AC rectification is 400V high voltage direct current.Communication lightning-protection device function
It can be lightning protection, protect circuit.A.C. contactor is responsible for controlling the starting and closing of the present apparatus.
Using high voltage direct current power supply when, the AC-DC power supply of traditional LED lamp is divided into two parts: AC-DC part and
The part AC-DC is focused on a power supply box by the part DC-DC, the part DC-DC is retained in LED lamp.This mode is not
The efficiency of lamps and lanterns driving power is improved only, the service life of power supply is also greatly improved, reduces maintenance cost；Meanwhile
Efficient power factor reduces the running cost of AC network.
In the examples of implementation, minimum power supply system as redundancy backup equipment, is not allowed for tunnel first order load
The requirement of power-off and generate, minimum system is that two DC power supply integrators are incorporated into a power cabinet, two direct currents
Source can mutual backup, work together, guarantee first order load will not be powered off because of a power failure.When transformer all breaks down
When, first order load has energy-storage battery power supply.
Wherein, DC power supply fairing effect is 380v alternating current to be integrated into 400v direct current, DC power supply rectification
Device is existing equipment, herein no longer description description.
In the typical embodiment of the another kind of the disclosure, a kind of tunnel redundant direct current power supply system is also disclosed, including
Two commutator transformers being in parallel, 10kV high pressure are rectified into after 380V exchange by low after tunnel electric substation commutator transformer
Press feeder cabinet outlet to EPS power supply, EPS power outlet end divides main power source inlet wire and backup power source inlet wire to enter tunnel redundant direct current
The ac bus of power supply minimum system.
In the examples of implementation, tunnel illumination is powered using high voltage direct current, in order to ensure its stability, is using minimum
System, i.e., two commutator transformers are placed in the same transformer cabinet side by side, run simultaneously, and two transformers are shared jointly under normal circumstances
Load, once a transformer fault, another can undertake the load of a whole route completely.
Embodiment of the disclosure also discloses a kind of method of supplying power to of tunnel redundant direct current power supply system, comprising:
Two commutator transformers are run simultaneously, under normal circumstances two common load sharings of transformer, when wherein one straight
Convertor transformer failure, another commutator transformer can undertake the load of a whole route completely；
10kV high pressure is rectified into 380V exchange, low pressure feeder cabinet outlet to EPS electricity after tunnel electric substation commutator transformer
Main power source inlet wire and backup power source inlet wire is divided to enter minimum system behind source, 380V AC rectification is 400V high pressure by minimum system
Direct current connects DC bus anode cathode, and the right line of left tunnel line is powered to emergency lighting DC loop out.
It is understood that in the description of this specification, reference term " embodiment ", " another embodiment ", " other
The description of embodiment " or " first embodiment~N embodiment " etc. means specific spy described in conjunction with this embodiment or example
Sign, structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned
The schematic representation of term may not refer to the same embodiment or example.Moreover, the specific features of description, structure, material
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, for the skill of this field
For art personnel, the disclosure can have various modifications and variations.It is all within the spirit and principle of the disclosure, it is made any to repair
Change, equivalent replacement, improvement etc., should be included within the protection scope of the disclosure.
Claims (10)
1. a kind of tunnel redundant direct current power supply system, characterized in that including the DC power supply fairing being in parallel, the direct current
The end of incoming cables of power rectifying equipment is connected to ac bus, and the leading-out terminal of DC power supply fairing is connected to DC bus, institute
It is 400V high voltage direct current that DC power supply fairing, which is stated, by 380V AC rectification, and the DC bus is powered to LED lamp,
The LED lamp includes DC-DC power source and LED light.
2. a kind of tunnel redundant direct current power supply system as described in claim 1, characterized in that the DC power supply fairing
Including communication lightning-protection device, A.C. contactor and multiple-pulse Transformer Rectifier module, wherein it is female that the A.C. contactor is connected on exchange
Between line and multiple-pulse Transformer Rectifier module, the end of incoming cables lead-out wire of A.C. contactor is grounded by communication lightning-protection device.
3. a kind of tunnel redundant direct current power supply system as described in claim 1, characterized in that be also connected on the DC bus
There are more sidings.
4. a kind of tunnel redundant direct current power supply system as described in claim 1, characterized in that the ac bus is additionally coupled to
Case intraoral illumination circuit.
5. a kind of tunnel redundant direct current power supply system as described in claim 1, characterized in that case intraoral illumination circuit is to hand over
Flow lighting loop, including breaker and exchange illuminator.
6. a kind of tunnel redundant direct current power supply system as described in claim 1, characterized in that the DC power supply rectification being in parallel
Device is placed in DC power cabinet.
7. a kind of method of supplying power to of any tunnel redundant direct current power supply system of claim 1-6, characterized in that include:
It is that 400V high voltage direct current connects DC bus anode cathode by 380V AC rectification, the right line of left tunnel line is straight to emergency lighting out
Flow loop power supply.
8. a kind of tunnel redundant direct current power supply system, characterized in that including two commutator transformers being in parallel, 10kV high pressure warp
It is rectified into after tunnel electric substation commutator transformer after 380V exchange through low pressure feeder cabinet outlet to EPS power supply, EPS power outlet
End divides main power source inlet wire and backup power source inlet wire to enter any tunnel redundant direct current power supply minimum system of claim 1-6
Ac bus.
9. a kind of tunnel redundant direct current power supply system as claimed in claim 8, characterized in that two commutator transformers are simultaneously
Column are placed in the same transformer cabinet.
10. a kind of method of supplying power to of any tunnel redundant direct current power supply system of claim 8-9, characterized in that include:
Two commutator transformers are run simultaneously, under normal circumstances two common load sharings of transformer, when wherein a direct current becomes
Depressor failure, another commutator transformer can undertake the load of a whole route completely；
10kV high pressure is rectified into 380V exchange after tunnel electric substation commutator transformer, after low pressure feeder cabinet outlet to EPS power supply
Main power source inlet wire and backup power source inlet wire is divided to enter minimum system, 380V AC rectification is 400V high voltage direct current by minimum system
Electricity connects DC bus anode cathode, and the right line of left tunnel line is powered to emergency lighting DC loop out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910355171.9A CN110139429A (en) | 2019-04-29 | 2019-04-29 | A kind of tunnel redundant direct current power supply system and method for supplying power to |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910355171.9A CN110139429A (en) | 2019-04-29 | 2019-04-29 | A kind of tunnel redundant direct current power supply system and method for supplying power to |
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| CN110139429A true CN110139429A (en) | 2019-08-16 |
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| CN201910355171.9A Pending CN110139429A (en) | 2019-04-29 | 2019-04-29 | A kind of tunnel redundant direct current power supply system and method for supplying power to |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112103938A (en) * | 2020-10-10 | 2020-12-18 | 北京百度网讯科技有限公司 | Power supply architecture, method and system based on HVDC equipment |
| CN112350423A (en) * | 2020-11-04 | 2021-02-09 | 合肥联信电源有限公司 | Emergency lighting controller with redundant power supply |
| CN112467864A (en) * | 2020-11-19 | 2021-03-09 | 厦门海索科技有限公司 | Modularized high-reliability emergency power supply capable of realizing fault diagnosis and service life prediction |
| CN112615420A (en) * | 2020-12-24 | 2021-04-06 | 石家庄飞机工业有限责任公司 | General aircraft power distribution system |
| CN114188949A (en) * | 2022-02-17 | 2022-03-15 | 中铁第六勘察设计院集团有限公司 | Low-voltage power distribution system for highway extra-long tunnel |
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| CN112467864A (en) * | 2020-11-19 | 2021-03-09 | 厦门海索科技有限公司 | Modularized high-reliability emergency power supply capable of realizing fault diagnosis and service life prediction |
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| CN114188949A (en) * | 2022-02-17 | 2022-03-15 | 中铁第六勘察设计院集团有限公司 | Low-voltage power distribution system for highway extra-long tunnel |
| CN114188949B (en) * | 2022-02-17 | 2022-04-12 | 中铁第六勘察设计院集团有限公司 | Low-voltage power distribution system for highway extra-long tunnel |
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Address after: 261031 No.2, Central Road, comprehensive bonded zone, Weifang City, Shandong Province Applicant after: SHANDONG SANJING LIGHTING SCIENCE & TECHNOLOGY Co.,Ltd. Applicant after: Shandong transportation planning and Design Institute Group Co.,Ltd. Applicant after: Shandong Zhongda Power Technology Co.,Ltd. Address before: 261031 No.2, Central Road, comprehensive bonded zone, Weifang City, Shandong Province Applicant before: SHANDONG SANJING LIGHTING SCIENCE & TECHNOLOGY Co.,Ltd. Applicant before: Shandong transportation planning and Design Institute Co.,Ltd. Applicant before: Shandong Zhongda Power Technology Co.,Ltd. |
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Application publication date: 20190816 |
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