CN208539580U - A kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage - Google Patents
A kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage Download PDFInfo
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- CN208539580U CN208539580U CN201821322707.4U CN201821322707U CN208539580U CN 208539580 U CN208539580 U CN 208539580U CN 201821322707 U CN201821322707 U CN 201821322707U CN 208539580 U CN208539580 U CN 208539580U
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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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- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The utility model discloses a kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage, including photovoltaic generation unit, wind power generation unit, energy storage locomotive power supply unit and tractive transformer, the photovoltaic generation unit, wind power generation unit, energy storage locomotive power supply unit come together on ac bus or DC bus, it is the charging of energy storage locomotive power supply unit that photovoltaic generation unit and wind power generation unit pass through low current jointly, and ac bus is railway network power supply by tractive transformer；Electric energy on DC bus comes together on ac bus after being changed into alternating current by energy accumulation current converter, is then railway network power supply by tractive transformer.The isolated network ferroelectric power supply system of above structure, it is totally independent of power grid, realize the electric energy supply of locomotive, station service and control system, it avoids being laid with 220kV ultra-high-tension power transmission line, the numerous traction substations of construction and arranges a related secondary device, save the annual electricity charge, engineering construction cost, equipment initial outlay and later period O&M cost.
Description
Technical field
The utility model relates to a kind of isolated network ferroelectric power supply systems provided multiple forms of energy to complement each other based on battery energy storage, belong to railway network neck
Domain.
Background technique
Electric railway system has become cargo transport at present, people go on a journey one of indispensable mode, gives China's warp
Deep foundation has been established in Ji development.Electrified railway power supply system mainly uses the power supply mode of V/V wiring as shown in Figure 1
(mode one), or the power supply mode (mode two) using Scott wiring as shown in Figure 1.The main problems are as follows:
1) power supply of railroad train is completely dependent on power grid, once power grid or traction substation break down, will lead to locomotive
It stops transport, seriously affects the safety and reliability of locomotive operation；
2) traction substation is mainly by 220kV transmission line of electricity, tractive transformer, high-tension switch cabinet and second protection equipment group
At, and all devices need double set redundant configurations, engineering construction cost is very high, spends the time very long.
3) high-power, asymmetric, impact railway load, seriously affect 220kV high pressure network electric energy quality, power because
Element, and increase peak load regulation network pressure；To solve power quality problem, and network interface need to be arranged SVG, integrated power flow controller etc. and set
It is standby, construction cost and O&M cost are increased indirectly；The supply arm train of every 20~30km is not very intensive reality,
Cause numerous tractive transformer utilization rates very low, needs to pay high electrical capacity charge every year.
In view of this, the present inventor studies this, a kind of orphan to provide multiple forms of energy to complement each other based on battery energy storage is specially developed
Thus net ferroelectric power supply system, this case generate.
Utility model content
The purpose of the utility model is to provide a kind of isolated network ferroelectric power supply systems provided multiple forms of energy to complement each other based on battery energy storage, increase
Can be saved while railway network power supply reliability the annual electricity charge, engineering construction cost, equipment initial outlay and later period O&M at
This.
To achieve the goals above, the solution of the utility model is:
A kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage, including photovoltaic generation unit, wind-power electricity generation
Unit, energy storage locomotive power supply unit and tractive transformer, wherein the photovoltaic generation unit, wind power generation unit, energy storage locomotive
Power supply unit comes together on ac bus or DC bus, and photovoltaic generation unit is jointly by low current with wind power generation unit
The charging of energy storage locomotive power supply unit, ac bus are railway network power supply by tractive transformer；Electric energy on DC bus passes through
Energy accumulation current converter comes together on ac bus after being changed into alternating current, is then railway network power supply by tractive transformer.
Preferably, the isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage further includes for the confession of energy storage locomotive
The standby emergency power supply unit of electric unit charging.Standby emergency power supply unit is in the case where calm, unglazed etc. extremely special
The charging of energy storage locomotive power supply unit, guarantees the reliability of locomotive power supply.
Preferably, the photovoltaic generation unit includes multiple photovoltaic arrays being connected in parallel on ac bus, the photovoltaic
Array is connected by photovoltaic DC-to-AC converter with ac bus.
Preferably, the photovoltaic generation unit includes multiple photovoltaic arrays for being connected in parallel on DC bus.
Preferably, the wind power generation unit includes multiple wind-driven generators being connected in parallel on ac bus.
Preferably, the wind power generation unit includes multiple wind-driven generators being connected in parallel on DC bus, the wind
Power generator is connected by AC/DC conversion module with DC bus.
Preferably, the standby emergency power supply unit includes the gas turbine of multiple parallel connections, gas turbine with exchange mother
Line is connected, and charges for locomotive power supply unit.
The isolated network ferroelectric power supply system described in the utility model provided multiple forms of energy to complement each other based on battery energy storage, mainly by wind-power electricity generation
Unit, photovoltaic generation unit, energy storage locomotive power supply unit and standby emergency power supply unit form microgrid, are totally independent of power grid,
The reliability of electric power supply for realizing locomotive, station service and control system avoids being laid with 220kV ultra-high-tension power transmission line, construction crowd
More traction substations and arrange a related secondary device, save the annual electricity charge, engineering construction cost, equipment initial outlay and
Later period O&M cost.In addition, collect the electric energy of wind power generation unit and photovoltaic generation unit by energy storage locomotive power supply unit, so as to
It for high-power, intermittent locomotive power supply, solves that traction depressor capacity configuration at present is high, utilization rate is low, need to pay every year
The shortcomings that huge electrical capacity charge, is not necessarily to pay electrical capacity charge to power grid using technical solution described in the utility model.Moreover, being based on
The isolated network ferroelectric power supply system that battery energy storage is provided multiple forms of energy to complement each other can be laid on the spot distributed wind-driven generator and photovoltaic array is (small
Capacity), by collecting its low-power energy with locomotive power (high-power load) matched chemical energy storage power station, solve at present
West area due to 220kV major network apart from the railway network farther out or major network is more weak, meter and economy and practical feasibility without
Method realizes the problem of smooth laying of the railway network.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Detailed description of the invention
Fig. 1 is the power supply mode topology diagram of electrified railway power supply system in the prior art；
Fig. 2 is one of them isolated network ferroelectric power supply system topological structure provided multiple forms of energy to complement each other based on battery energy storage of the present embodiment
Figure；
Fig. 3 is another isolated network ferroelectric power supply system topological structure provided multiple forms of energy to complement each other based on battery energy storage of the present embodiment
Figure.
Specific embodiment
Fig. 2 is the isolated network ferroelectric power supply system that the one of which of the present embodiment is provided multiple forms of energy to complement each other based on battery energy storage, such as Fig. 2 institute
Show, based on the isolated network ferroelectric power supply system that battery energy storage is provided multiple forms of energy to complement each other, including photovoltaic generation unit 1, wind power generation unit 2, storage
Energy locomotive power supply unit 3, transformer 4, standby emergency power supply unit 5, wherein the photovoltaic generation unit 1, wind power generation unit
2, energy storage locomotive power supply unit 3 comes together on low-voltage alternating-current bus, and photovoltaic generation unit 1 and wind power generation unit 2 pass through small electricity
Stream charges jointly for energy storage locomotive power supply unit 3, and energy storage locomotive power supply unit 3 discharges the electric energy collected when locomotive passes through,
Guarantee that locomotive is stable, continue, safe and reliable operation, standby emergency power supply unit 5 is then calm, unglazed etc. extremely special
In the case of, it charges for energy storage locomotive power supply unit 3, guarantees the reliability of locomotive power supply.Low-voltage AC bus is become by traction
Electric energy is transmitted in the contact line of the railway network 7 by depressor 4, and described 4 device configuration of tractive transformer two, mutual backup is not necessarily to
To power grid electricity payment and electrical capacity charge.The railway network 7 is mainly made of contact line, track, return wire, locomotive, switching station etc..Institute
Stating photovoltaic generation unit 1 includes multiple photovoltaic arrays 11 being connected in parallel on ac bus, and the photovoltaic array 11 passes through light
Volt inverter 12 is connected with low-voltage alternating-current bus.The wind power generation unit 2 includes multiple wind-force being connected in parallel on ac bus
Generator 21.The battery 31 of the energy storage locomotive power supply unit 3 including multiple parallel connection, battery 31 pass through energy accumulation current converter 32 with it is low
Bus is pressed to be connected.The standby emergency power supply unit 5 includes the gas turbine 51 of multiple parallel connections, gas turbine 51 and ac bus
It is connected, charges for energy storage locomotive power supply unit 3.
Fig. 3 is another isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage of the present embodiment, such as Fig. 3 institute
Show, based on the isolated network ferroelectric power supply system that battery energy storage is provided multiple forms of energy to complement each other, including photovoltaic generation unit 1, wind power generation unit 2, storage
It can locomotive power supply unit 3, transformer 4, standby emergency power supply unit 5.Wherein, the photovoltaic generation unit 1, wind power generation unit
2, energy storage locomotive power supply unit 3 comes together on DC bus, is then changed into friendship by direct current by modular energy accumulation current converter 6
Stream comes together in ac bus, is locomotive power supply by tractive transformer 4.The photovoltaic generation unit 1 includes multiple is connected in parallel on directly
Flow the photovoltaic array 11 of bus.The wind power generation unit 2 includes multiple wind-driven generators 21 being connected in parallel on DC bus, institute
Wind-driven generator 21 is stated to be connected by AC/DC conversion module 22 with DC bus.The standby emergency power supply unit 5 includes multiple
Gas turbine 51 in parallel, gas turbine 51 are connected with ac bus, charge for locomotive power supply unit 3.
The isolated network ferroelectric power supply system described in the utility model provided multiple forms of energy to complement each other based on battery energy storage, mainly by wind-power electricity generation
Unit 1, photovoltaic generation unit 2, energy storage locomotive power supply unit 3 and standby emergency power supply unit 5 form microgrid, are totally independent of electricity
Net realizes the reliability of electric power supply of locomotive, station service and control system, avoids being laid with 220kV ultra-high-tension power transmission line, construction
Numerous traction substations and the related secondary device of arrangement, save the annual electricity charge, engineering construction cost, equipment initial outlay
And later period O&M cost.In addition, collecting the electricity of wind power generation unit 1 and photovoltaic generation unit 2 by energy storage locomotive power supply unit 3
Can, be high-power, intermittent locomotive power supply, solves and draw that depressor capacity configuration is high, utilization rate is low at present, every year
The shortcomings that huge electrical capacity charge need to be paid, the program are not necessarily to pay electrical capacity charge to power grid.Moreover, mutual based on battery energy storage multipotency
The isolated network ferroelectric power supply system of benefit can be laid with distributed wind-driven generator and photovoltaic array (low capacity) on the spot, by with machine
Its low-power energy is collected in vehicle power (high-power load) matched chemical energy storage power station, solve current west area due to
Farther out or major network is more weak apart from the railway network, meter and economy and practical feasibility cannot achieve the railway network to 220kV major network
Smooth laying the problem of.
The utility model protection is by volt generator unit 1, wind power generation unit 2, energy storage locomotive power supply unit 3, transformation
The isolated network ferroelectric power supply system of the hardware configurations such as device 4, standby emergency power supply unit 5 composition, during the work time by software section
Control software realization conventional in the prior art can be used in the control function of realization.
Those skilled in the art are considering specification and after practicing utility model disclosed herein, will readily occur to practical
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these changes
Type ,+purposes or adaptive change follow the general principle of the utility model and including undocumented skills of the utility model
Common knowledge or conventional techniques in art field.The description and examples are only to be considered as illustrative, the utility model
True scope and spirit are pointed out by claim.
Claims (7)
1. a kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage, it is characterised in that: including photovoltaic generation unit,
Wind power generation unit, energy storage locomotive power supply unit and tractive transformer, wherein the photovoltaic generation unit, wind power generation unit,
Energy storage locomotive power supply unit comes together on ac bus or DC bus, and photovoltaic generation unit and wind power generation unit pass through small electricity
Stream charges jointly for energy storage locomotive power supply unit, and ac bus is railway network power supply by tractive transformer；On DC bus
Electric energy comes together on ac bus after being changed into alternating current by energy accumulation current converter, is then railway network confession by tractive transformer
Electricity.
2. a kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage as described in claim 1, it is characterised in that:
The isolated network ferroelectric power supply system further includes the standby emergency power supply unit for the charging of energy storage locomotive power supply unit.
3. a kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage as described in claim 1, it is characterised in that:
The photovoltaic generation unit includes multiple photovoltaic arrays being connected in parallel on ac bus, and the photovoltaic array passes through photovoltaic DC-to-AC converter
It is connected with ac bus.
4. a kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage as described in claim 1, it is characterised in that:
The photovoltaic generation unit includes multiple photovoltaic arrays for being connected in parallel on DC bus.
5. a kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage as described in claim 1, it is characterised in that:
The wind power generation unit includes multiple wind-driven generators being connected in parallel on ac bus.
6. a kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage as described in claim 1, it is characterised in that:
The wind power generation unit includes multiple wind-driven generators being connected in parallel on DC bus, and the wind-driven generator passes through AC/DC
Conversion module is connected with DC bus.
7. a kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage as claimed in claim 2, it is characterised in that:
The standby emergency power supply unit includes the gas turbine of multiple parallel connections, and gas turbine is connected with ac bus, is locomotive power supply
Unit charging.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821322707.4U CN208539580U (en) | 2018-08-16 | 2018-08-16 | A kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage |
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| CN201821322707.4U CN208539580U (en) | 2018-08-16 | 2018-08-16 | A kind of isolated network ferroelectric power supply system provided multiple forms of energy to complement each other based on battery energy storage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687503A (en) * | 2018-08-16 | 2019-04-26 | 洁电（北京）储能科技有限公司 | The isolated network ferroelectric power supply system and method for supplying power to provided multiple forms of energy to complement each other based on battery energy storage |
| CN112350377A (en) * | 2021-01-11 | 2021-02-09 | 西南交通大学 | In-phase traction power supply power generation system and control method |
-
2018
- 2018-08-16 CN CN201821322707.4U patent/CN208539580U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687503A (en) * | 2018-08-16 | 2019-04-26 | 洁电（北京）储能科技有限公司 | The isolated network ferroelectric power supply system and method for supplying power to provided multiple forms of energy to complement each other based on battery energy storage |
| CN112350377A (en) * | 2021-01-11 | 2021-02-09 | 西南交通大学 | In-phase traction power supply power generation system and control method |
| CN112350377B (en) * | 2021-01-11 | 2021-04-13 | 西南交通大学 | In-phase traction power supply power generation system and control method |
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Effective date of registration: 20191108 Address after: 810600 Room 310, Block B, Pioneering Building, 8 Zhongguancun East Road, Haidong Industrial Park, Haidong City, Qinghai Province Patentee after: QINGHAI NENGGAO NEW ENERGY CO., LTD. Address before: 102600 Beijing Daxing District Beijing economic and Technological Development Zone, Rong Jingdong Street 3, 1, 12, 2, unit 1001 Patentee before: Clean electric (Beijing) energy storage technology Co., Ltd. |
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