CN203933043U - A kind of urban rail transit elevated station mixed power supply system - Google Patents
A kind of urban rail transit elevated station mixed power supply system Download PDFInfo
- Publication number
- CN203933043U CN203933043U CN201420330936.6U CN201420330936U CN203933043U CN 203933043 U CN203933043 U CN 203933043U CN 201420330936 U CN201420330936 U CN 201420330936U CN 203933043 U CN203933043 U CN 203933043U
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- 238000010276 construction Methods 0.000 abstract description 3
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- 238000009413 insulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- 230000001172 regenerating effect Effects 0.000 description 1
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Classifications
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
A urban rail transit elevated station mixed power supply system, to reduce construction cost and the operation and maintenance cost of station photovoltaic generating system.Comprise the station electric power system to the power supply of station low-voltage load by 0.4kV low-voltage distribution cabinet, and the station photovoltaic generating system being formed by solar cell array, photovoltaic array conflux box and photovoltaic DC-to-AC converter, this station photovoltaic generating system is through exchanging grid-connection cabinet, access 0.4kV low-voltage distribution cabinet, forms and grid-connectedly to station low-voltage load, powers with station electric power system.
Description
Technical field
The utility model relates to the urban transportation, particularly a kind of urban rail transit elevated station mixed power supply system that is applicable to.
Background technology
Growing along with social high speed development and mankind's demand, energy demand also becomes day by day serious at ever-increasing while problem of environmental pollution.Contradiction between solution energy demand and ecological deterioration becomes the key of modern society's sustainable development; Solar energy is inexhaustible as green energy resource, becomes the first-selection of human development regenerative resource.
Urban track traffic is that China builds a conservation-minded society, and alleviates the Important Action of urban traffic pressure; Urban track traffic is simultaneously again energy consumption rich and influential family, and energy-saving and cost-reducing is also an important task and the principle that must implement.At urban rail transit elevated station setting photovoltaic generating system, urban track traffic is forged into " energy saving building, green traffic ", be the requirement of response national energy-saving consumption reduction, be also the needs that reduce urban track traffic operation cost, and can in citizen, play energy-saving and emission-reduction exemplary role.
Urban rail transit elevated station electric power system 0.4kV low-pressure side adopts the main wiring mode of sectionalized single busbar connection, two sections of buses are respectively powered by a power transformer, bus section breaker disconnects under normal circumstances, and two-way power supply is respectively with station one halfload independent operating; During Dang Yi road power supply dead electricity, corresponding lead-in circuit breaker tripping operation, three stage load main breakers tripping operations on two sections of buses, then bus section breaker closes a floodgate, and bears whole I and IIs load by another road power supply.
More than urban rail transit elevated station is positioned at ground, platform roofing, for installation photovoltaic component provides desirable locus, does not need additionally to take up an area again; Meanwhile, photovoltaic module has absorbed solar radiation energy, and this structure has better effect of heat insulation than simple metal Roof, can be platform passenger more comfortable waiting environment is provided.
At present, overhead station photovoltaic generating system adopts from network operation mode more, and photovoltaic generating system is not connected with station power supply network, and independent to station equipment power supply, system need configure storage battery, and cost and maintenance cost are higher.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of urban rail transit elevated station mixed power supply system, to reduce construction cost and the operation and maintenance cost of station photovoltaic generating system.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
A kind of urban rail transit elevated of the utility model station mixed power supply system, comprise the station electric power system to the power supply of station low-voltage load by 0.4kV low-voltage distribution cabinet, it is characterized in that: it also comprises the station photovoltaic generating system consisting of solar cell array, photovoltaic array conflux box and photovoltaic DC-to-AC converter, this station photovoltaic generating system is through exchanging grid-connection cabinet, access 0.4kV low-voltage distribution cabinet, forms and grid-connectedly to station low-voltage load, powers with station electric power system.
Advantage of the present utility model and beneficial effect be, adopts the mode that is incorporated into the power networks, and by station power supply network, to station equipment, powers, and do not need to configure storage battery, can effectively reducing the construction costs and operation and maintenance cost; There is dual-use function, utilize station ceiling to lay solar panel on the one hand, can be used as roof-bearing and heat insulation system, play heat-blocking action, for platform passenger provides a comfortable waiting environment; On the other hand, can be used as again a power station, when having sunshine, export continually electric energy, for station equipment provides power supply, saved the energy.
The utility model urban rail transit elevated station mixed power supply system is not only applicable to newly-built overhead station; Also be applicable to set up photovoltaic generating system at existing overhead station, and easily access existing electric power system.
Accompanying drawing explanation
This specification comprises following two width accompanying drawings:
Fig. 1 is the module map of a kind of urban rail transit elevated of utility model station mixed power supply system.
Fig. 2 is the grid connected structure schematic diagram of a kind of urban rail transit elevated of utility model station mixed power supply system.
In figure, indicate that element names claims and corresponding mark: solar cell array 10, photovoltaic combiner box 20, the first photovoltaic combiner box the 21, the 21 photovoltaic combiner box 22, photovoltaic DC-to-AC converter 30, the first photovoltaic DC-to-AC converter 31, the second photovoltaic photovoltaic DC-to-AC converter 31, supervisory control system 40, exchange grid-connection cabinet 50, the first counterflow-preventing control device 51, the second counterflow-preventing control device 52,0.4kV low-voltage distribution cabinet 60, station low-voltage load 70, the first load-break switch K1, the second load-break switch K2.
Embodiment
Below in conjunction with accompanying drawing, the utility model scheme is further illustrated.
With reference to Fig. 1, a kind of urban rail transit elevated of the present utility model station mixed power supply system, comprises the station electric power system to 70 power supplies of station low-voltage load by 0.4kV low-voltage distribution cabinet 60.It also comprises the station photovoltaic generating system consisting of solar cell array 10, photovoltaic array conflux box 20 and photovoltaic DC-to-AC converter 30, this station photovoltaic generating system, through exchanging grid-connection cabinet 50, access 0.4kV low-voltage distribution cabinet 60, forms grid-connected to 70 power supplies of station low-voltage load with station electric power system.Be that station photovoltaic generating system adopts 0.4kV low-pressure grid-connection mode, send out and use on the spot.
Fig. 2 is a kind of typical configuration mode of the present utility model.With reference to this figure, described solar cell array 10 comprises the first solar cell array 11, the second solar cell array 12, the first solar cell array 11 is through one section of low-voltage bus bar of the first photovoltaic DC-to-AC converter 31 access station electric power systems, and the second solar cell array 12 is through another section of low-voltage bus bar of the second photovoltaic DC-to-AC converter 32 access station electric power systems.The grid-connected place of 0.4kV low-voltage cabinet 60 correspondence arranges the first counterflow-preventing control device 51, the second counterflow-preventing control device 52 AT STATION, to guarantee that photovoltaic generation electric energy is only for low-voltage load, and on not understanding, is fed to upper strata electrical network.Under station electric power system or station photovoltaic generating system failure condition, by exchanging grid-connection cabinet 50, disconnect being connected of station photovoltaic generating systems and station electric power system, reliability and the fail safe of assurance overhead station electric power system.Facilitate repair and maintenance, between described the first photovoltaic DC-to-AC converter 31, the second photovoltaic DC-to-AC converter 32 and corresponding low-voltage bus bar, the first load-break switch K1, the second load-break switch K2 are set respectively.
The energy output of described the first solar cell array 11, the second solar cell array 12 is basic identical.
Some principles of the above a kind of urban rail transit elevated of the utility model station mixed power supply system that just explains through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (4)
1. a urban rail transit elevated station mixed power supply system, comprise the station electric power system to station low-voltage load (70) power supply by 0.4kV low-voltage distribution cabinet (60), it is characterized in that: it also comprises the station photovoltaic generating system consisting of solar cell array (10), photovoltaic array conflux box (20) and photovoltaic DC-to-AC converter (30), this station photovoltaic generating system is through exchanging grid-connection cabinet (50), access 0.4kV low-voltage distribution cabinet (60), forms and grid-connectedly to station low-voltage load (70), powers with station electric power system.
2. a kind of urban rail transit elevated according to claim 1 station mixed power supply system, it is characterized in that: described solar cell array (10) comprises the first solar cell array (11), the second solar cell array (12), the first solar cell array (11) is through one section of low-voltage bus bar of the first photovoltaic DC-to-AC converter (31) access station electric power system, the second solar cell array (12) is through another section of low-voltage bus bar of the second photovoltaic DC-to-AC converter (32) access station electric power system, and the grid-connected place of 0.4kV low-voltage cabinet (60) correspondence arranges the first counterflow-preventing control device (51) AT STATION, the second counterflow-preventing control device (52).
3. a kind of urban rail transit elevated according to claim 2 station mixed power supply system, is characterized in that: between described the first photovoltaic DC-to-AC converter (31), the second photovoltaic DC-to-AC converter (32) and corresponding low-voltage bus bar, the first load-break switch (K1), the second load-break switch (K2) are set respectively.
4. according to a kind of urban rail transit elevated station mixed power supply system described in claim 2 or 3, it is characterized in that: the energy output of described the first solar cell array (11), the second solar cell array (12) is basic identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420330936.6U CN203933043U (en) | 2014-06-20 | 2014-06-20 | A kind of urban rail transit elevated station mixed power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420330936.6U CN203933043U (en) | 2014-06-20 | 2014-06-20 | A kind of urban rail transit elevated station mixed power supply system |
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| Publication Number | Publication Date |
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| CN203933043U true CN203933043U (en) | 2014-11-05 |
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| CN201420330936.6U Expired - Fee Related CN203933043U (en) | 2014-06-20 | 2014-06-20 | A kind of urban rail transit elevated station mixed power supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994687A (en) * | 2019-12-31 | 2020-04-10 | 广东顺德电力设计院有限公司 | Line transformation method and system with distributed small hydropower stations at tail ends |
-
2014
- 2014-06-20 CN CN201420330936.6U patent/CN203933043U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994687A (en) * | 2019-12-31 | 2020-04-10 | 广东顺德电力设计院有限公司 | Line transformation method and system with distributed small hydropower stations at tail ends |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |