CN206117184U - Power supply structure that photovoltaic and electric Railway combined together - Google Patents
Power supply structure that photovoltaic and electric Railway combined together Download PDFInfo
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- CN206117184U CN206117184U CN201621198741.6U CN201621198741U CN206117184U CN 206117184 U CN206117184 U CN 206117184U CN 201621198741 U CN201621198741 U CN 201621198741U CN 206117184 U CN206117184 U CN 206117184U
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- photovoltaic
- railway
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- transformer
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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
The utility model relates to a power supply structure that photovoltaic and electric Railway combined together, the distributed photovoltaic power plant that with railway contact net communicate is established at the railway along the line, does it contain the three -phase that disposes on the spot single -phase step up transformer and 1 connected at least photovoltaic inverter unit, contain and the three -phase in the photovoltaic inverter unit interchange collection flow box and photovoltaic module that single -phase step up transformer connects, it is parallelly connected after the series connection of a plurality of photovoltaic module is divided into groups, it exchanges collection flow box to insert behind 1 group's cluster dc -to -ac converter of reconnection again, the utility model discloses combine together photovoltaic power plant and electric Railway power supply system, electric energy direct access electric propulsion net that photovoltaic power plant sent inserts nearby, dissolves nearby, saves the supporting transformer substation of photovoltaic power plant and sees the construction cost of circuit off, is showing the economic nature of promotion photovoltaic power generation cost, uses multipurposely railway soil along the line, railway self power transmission and transformation net grid -connected electricity generation, solves a photovoltaic power generation cost control and a electric Railway 0 difficult problem.
Description
Technical field
This utility model is related to electric power-feeding structure of the photovoltaic in combination with electric railway.
Background technology
1. photovoltaic power generation technology.Photovoltaic generating system is by photovoltaic module, inverter, AC/DC header box, transformator etc.
Composition.Solar energy power generating is to rely on solar module, using the electronics property of semi-conducting material, luminous energy is converted
Into electric energy.Grid-connected system by photovoltaic module by receive come solar radiation energy through high-frequency direct-current conversion after become height
Pressure unidirectional current, to the same frequency of electrical network output and line voltage, the simple sinusoidal alternating current of homophase after inverter inversion.
Photovoltaic plant is generally divided into centralized photovoltaic plant and photovoltaic power station.The centralized photovoltaic plant of Large Copacity connects
When entering electrical network typically using in set of packets, voltage elevated synchronizing mode step by step.Photovoltaic power station is accessed with a scattered manner
Less than 35kV or more low-voltage-grade electrical network.
China's solar energy resources distribution and power load center are presented contrary distribution feature, and large-scale photovoltaic power generation applications disappear
Receiving becomes development problem：Photovoltaic plant occupation of land is larger, and with limited land resource contradiction is produced；The resources such as illumination, cheap land used
Contrary distribution is presented with power load, causing photovoltaic plant, supporting to send power grid construction with high costs.
2. electrified railway power supply system.Electrified railway power supply system is by power plant, traction substation, contact net, electricity
Power locomotive and rail etc. are constituted.The task of traction substation is that the three-phase high-voltage of power system is become required for electric locomotive
Electric energy.220kV the or 110kV three-phase alternating currents that traction substation is mainly sent power system by high voltage transmission line are in addition
It is conveyed to the single phase ac 27.5kV contact net that suitable electric train is used after blood pressure lowering and unsteady flow, adopts more traction electric network feeding system
AT power supply modes.Electric propulsion is first order load, and to guarantee that traction power supply is perfectly safe, tractive power supply system is all using " double standby
Part " pattern, two-way power supply stand-by heat each other.
Railway traction power supply system lays along the railway 27.5kV circuits, to build between the station of two wide aparts
Many ground installations, including track circuit equipment etc..China's electric railway development is good, there is more perfect railway transmission ＆ distribution
Electric network.Because traction substation is located in field locations mostly, surrounding physical features is spacious, has enough spaces to place photovoltaic generation
The desert of equipment, such as Along Railway, wild grass ground, circuit bank protection, this lays a good foundation for the accessibility of photovoltaic plant,
Make railway power system become photovoltaic, defeated, distribution novel carriers, cultivate, expand photovoltaic application new markets.
Utility model content
The technical problem that this utility model is solved is providing a kind of power supply knot of photovoltaic in combination with electric railway
Structure, in combination with electrified railway power supply structure, Along Railway soil, the defeated change of railway itself are comprehensively utilized by by photovoltaic plant
Network grid-connected power, solves photovoltaic generation cost control and a power transmission difficult problem.
The technological means that this utility model is adopted are as follows.
A kind of electric power-feeding structure of photovoltaic in combination with electric railway, set along the railway connect with railway contact line point
Cloth photovoltaic plant, three-phase-single-phase step-up transformer that the photovoltaic power station is configured on the spot comprising at least one and and its
At least one photovoltaic inversion unit of connection.
The photovoltaic power station includes 2 three-phase-single-phase step-up transformers, each three-phase-single-phase step-up transformer
It is all connected with least one photovoltaic inversion unit.
Comprising exchange header box and some photovoltaic modulies in each photovoltaic inversion unit, the exchange header box and three-phase-
Single-phase step-up transformer connects, some photovoltaic module series connection packets, after connecting 1 group string inverter after per group of parallel connection respectively
Access the exchange header box.
Above-mentioned 2 or more than 2 three-phase-single-phase step-up transformers collect rear T and are connected to railway contact line.
Having the beneficial effect that produced by this utility model.
1st, using the technology such as the comprehensive utilization of Along Railway photovoltaic generation land used and railway transmission and distribution network recycling so that photovoltaic
Power generation project cost of investment increases railway development technology connotation less than the totle drilling cost under traditional mode, promotes industry cooperation, promotes
Railroading makes the transition.
2nd, photovoltaic application and railway are blended, and as the supplement that railway traction net is powered, not only meet railways demand,
Reduce Railways External portion electrical network to rely on, and promote resource potential along the line to excavate, obtain ecological benefits and economic well-being of workers and staff.
3rd, while, electric energy that photovoltaic plant sends accesses nearby, dissolves nearby using fed electric railway is directly accessed, and saves
Save the supporting transformer station of photovoltaic plant and sent the expenditure of construction of circuit, be obviously improved photovoltaic generation cost efficiency.
4th, photovoltaic plant construction simultaneously, strengthens relevant range communication network and transforms, and can improve railway and photovoltaic plant
Control efficiency.
5th, photovoltaic generation and electrified railway power supply systematic collaboration develop, and make full use of solar energy resources and land resource,
The effect of energy-saving and emission-reduction is reached, is increased economic efficiency.
Description of the drawings
Fig. 1 is the schematic diagram of electric power-feeding structure of the photovoltaic of the present utility model in combination with electric railway.
Specific embodiment
This utility model is by distributed photovoltaic power generation in combination with 27.5kV electrified railway power supply structures.
The photovoltaic power station that above-mentioned electric power-feeding structure is built comprising the preferable location of light resources along the railway.Distributed light
Three-phase-single-phase step-up transformer 2 and connected at least one photovoltaic inversion list that overhead utility is configured on the spot comprising at least one
Unit 1.Three-phase-single-phase step-up transformer 2 and photovoltaic inversion unit 1 can configure its quantity according to actual land demand, for ease of saying
It is bright, it is illustrated that the quantity of three-phase-single-phase step-up transformer 2 is set to 2 in embodiment, and the quantity of photovoltaic inversion unit 1 is set to 4
It is individual, connect 1 three-phase-single-phase step-up transformer 2 jointly per 2 photovoltaic inversion units 1, but be not limited thereto.
Comprising exchange header box 13 and some photovoltaic modulies 11 in each photovoltaic inversion unit 1.Exchange header box 13 and three
Phase-single-phase step-up transformer 2 connects.Some photovoltaic module series connection packets, connect respectively 1 group string inverter 12 after per group of parallel connection
After access it is described exchange header box 13.
It is also provided with compensating, filters and energy-storage travelling wave tube in group string inverter 12, researchs and develops corresponding to railway traction net
Control strategy under the conditions of special electric circumstance, excavates the plasticity of high-power IGBT element, by rail traction Load on Electric Power Grid
Impact break the whole up into parts, obtain a certain degree of improvement in each photovoltaic power station.So, photovoltaic plant is not only power supply
Supplier, while having had the improver of the quality of power supply concurrently.
When actually used, solar energy is absorbed by the photovoltaic module 11 connected and unidirectional current is converted into, unidirectional current is by inverse
Become device 12 and unidirectional current is converted to into alternating current, the three-phase-single-phase step-up for configuring on the spot is accessed Jing after exchange header box 13 collects and is become
Depressor（0.48/2×27.5kV）Boosting, exports after finally being collected with 27.5kV, multiple three-phases-single-phase step-up transformer output
Electric energy directly collects the electric traction net that T is connected to Along Railway.
Prior art will convey everywhere the electric energy for coming be uniformly accessed into traction substation carry out being input into again after blood pressure lowering, unsteady flow to
27.5kV contact nets, cost is high, and from unlike the prior art, photovoltaic plant distribution is arranged on railway edge by this utility model
Preferably and field spacious ground section, the electric energy that photovoltaic plant is sent directly accesses nearby Along Railway after boosting to linear light resource
27.5kV Traction networks, save the supporting transformer station of photovoltaic plant and send the expenditure of construction of circuit, be obviously improved photovoltaic generation into
This economy.
Claims (4)
1. electric power-feeding structure of a kind of photovoltaic in combination with electric railway, it is characterised in that set contacted with railway along the railway
The photovoltaic power station of net connection, the three-phase that the photovoltaic power station is configured on the spot comprising at least one-single-phase step-up becomes
Depressor（2）With connected at least one photovoltaic inversion unit（1）.
2. electric power-feeding structure of the photovoltaic as claimed in claim 1 in combination with electric railway, it is characterised in that described distributed
Photovoltaic plant includes 2 three-phase-single-phase step-up transformers（2）, each three-phase-single-phase step-up transformer（2）It is all connected with least one
Photovoltaic inversion unit（1）.
3. electric power-feeding structure of the photovoltaic as claimed in claim 1 or 2 in combination with electric railway, it is characterised in that each light
Volt inversion unit（1）It is interior comprising exchange header box（13）With some photovoltaic modulies（11）, the exchange header box（13）With three-phase-
Single-phase step-up transformer（2）Connection, some photovoltaic module series connection packets, connects respectively 1 group string inversion after per group of parallel connection
Device（12）After access the exchange header box（13）.
4. electric power-feeding structure of the photovoltaic as claimed in claim 1 or 2 in combination with electric railway, it is characterised in that 2 or 2
Individual above three-phase-single-phase step-up transformer（2）Collect rear T and be connected to railway contact line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621198741.6U CN206117184U (en) | 2016-11-07 | 2016-11-07 | Power supply structure that photovoltaic and electric Railway combined together |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621198741.6U CN206117184U (en) | 2016-11-07 | 2016-11-07 | Power supply structure that photovoltaic and electric Railway combined together |
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| Publication Number | Publication Date |
|---|---|
| CN206117184U true CN206117184U (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621198741.6U Active CN206117184U (en) | 2016-11-07 | 2016-11-07 | Power supply structure that photovoltaic and electric Railway combined together |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317387A (en) * | 2017-06-27 | 2017-11-03 | 中铁二院工程集团有限责任公司 | A kind of depot of urban railway transit vehicles combines electric power system |
| CN109193790A (en) * | 2018-11-02 | 2019-01-11 | 国网浙江省电力有限公司电力科学研究院 | Distributed photovoltaic power grid control method, device, equipment and storage medium |
| CN114977313A (en) * | 2022-07-11 | 2022-08-30 | 江苏亿万物联科技有限公司 | Method for mutual compensation between photovoltaic electric energy and railway power supply |
-
2016
- 2016-11-07 CN CN201621198741.6U patent/CN206117184U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317387A (en) * | 2017-06-27 | 2017-11-03 | 中铁二院工程集团有限责任公司 | A kind of depot of urban railway transit vehicles combines electric power system |
| CN109193790A (en) * | 2018-11-02 | 2019-01-11 | 国网浙江省电力有限公司电力科学研究院 | Distributed photovoltaic power grid control method, device, equipment and storage medium |
| CN114977313A (en) * | 2022-07-11 | 2022-08-30 | 江苏亿万物联科技有限公司 | Method for mutual compensation between photovoltaic electric energy and railway power supply |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180824 Address after: 100120 Room 516, 65 ande Road, Xicheng District, Beijing. Patentee after: China Electric Power Engineering Consulting Group New Energy Co Ltd Address before: 100120 24 Huang Si street, Xicheng District, Beijing. Patentee before: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP |