CN206041817U - Railway purifies power supply unit - Google Patents

Railway purifies power supply unit Download PDF

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Publication number
CN206041817U
CN206041817U CN201621057708.1U CN201621057708U CN206041817U CN 206041817 U CN206041817 U CN 206041817U CN 201621057708 U CN201621057708 U CN 201621057708U CN 206041817 U CN206041817 U CN 206041817U
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CN
China
Prior art keywords
railway
phase
input
output
filter circuit
Prior art date
Application number
CN201621057708.1U
Other languages
Chinese (zh)
Inventor
陈峻岭
姚鹏
韦延清
王乐鹏
曹昌龙
胡小军
范强军
向增
李建霖
李忠怀
许慧铭
宫衍圣
刘贻军
王颢
牛金平
贾俊鑫
陶临生
Original Assignee
珠海万力达电气自动化有限公司
中铁第一勘察设计院集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201621057708.1U priority Critical patent/CN206041817U/en
Application granted granted Critical
Publication of CN206041817U publication Critical patent/CN206041817U/en

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Abstract

The utility model provides a railway purifies power supply unit, include: the soft way of charging, input transformer, the many level converter of chain, filter circuit and output transformer, the soft way of charging insert input transformer, input transformer take a percentage and insert the many level converter of chain, the many level converter of chain cascade by power unit and constitute, power unit by single -phasely do not control the flat ripples electric capacity of rectifier bridge, direct current energy storage, it is single -phase that control the H bridge and bypass contactor constitutes entirely, the filter circuit input insert many level converter's output, the other end inserts output transformer. The utility model discloses in using electric Railway, can keep apart the fluctuation and the harmonic interference that pull net 27.5kV voltage, export reliable and stable voltage, for station in the railway electric system interior, link up the line, self -imposed power line provides the power.

Description

A kind of railway power line cleaner
【Technical field】
This utility model belongs to railway power electronic system control application, more particularly to a kind of railway power conditioner dress Put
【Background technology】
In recent years, railway construction scale and persistent levels expand, and electric railway is aobvious in central and east low altitude area effect Write, the construction in areas such as the High aititudes such as Qinghai, Xinjiang, Tibet, Gobi desert, desertes slightly shows delayed.And railway construction is high to such During cold, High aititude, Gobi Desert Terrain area, often through the depopulated zone of hundreds of kilometer, around do not have utility network to access, but railway In standing, the supply of the high-tension electricity such as electricity consumption, through track, stick wire must be protected.Traditional approach is docked using winding type transformator Net-fault voltage enters line translation, and due to contact net voltage distortion, temporarily the power quality problem such as liter, temporary drop is serious, causes winding transformation When the voltage supply line road load of device output is used, reliability is reduced, or even cisco unity malfunction.
【Utility model content】
In order to solve the problems referred to above of prior art presence, the utility model proposes a kind of railway power conditioner dress Put.The device carries out blood pressure lowering using transformator to contact net voltage, by electric electronic current change technology, the electricity that contact net is present Can quality problems isolated, export reliable and stable voltage, and be supplied in Railways Stations by output isolation transformer, insertion Line, stick wire etc. use, so as to solving to ensure in station without utility network around during railway construction, through track, stick wire Supply of electric power problem, while the power quality problem of contact net presence can be isolated, exports reliable and stable alternating voltage, finally Make Along Railway all types of signals, dispatch, the load reliability service such as early warning of taking precautions against natural calamities, ensure the safety and stability of railway.
This utility model solve the technical scheme that adopted of prior art problem for:
A kind of railway power line cleaner, including:Soft charge road (1), input tranformer (2), cascade multilevel converter (3), filter circuit (4) and output transformator (5);Its input access trailer system of the railway power line cleaner is single-phase 27.5kV buses, its outfan supply the high-tension electricity supply line such as interior Railways Stations, insertion, self-closing;Railway power line cleaner The input of input tranformer (2) is linked into by soft charge road (1);It is how electric that the outfan of input tranformer (2) accesses chain type Filter circuit (4) is accessed in flat changer (3), cascade multilevel converter (3) outfan, and filter circuit (4) outfan is linked into The input of output transformator (5);The outfan of output transformator (5) accesses railway power three-phase high-voltage electric lines of force road.
Further, described soft charge road (1) is formed by resistance R and switch in parallel, accesses input tranformer (2).
Further, described input tranformer (2) be single-phase Multiple coil multi-tap transformator, its former limit for it is single-phase around Group, secondary are multigroup single-phase winding;The Multiple coil tap of input tranformer (2) secondary is connected to cascade multilevel converter (3).
Further, cascade multilevel converter (3) is formed by power cell (6) cascade, described power cell (6) by It is single-phase not control H bridges (7), DC energy storage flat wave capacitor (8), single-phase full control H bridges (9) and bypass contactor (10) composition.
Further, cascade multilevel converter (3) output accesses filter circuit (4);Filter circuit (4) effect is to filter The radio-frequency component that cascade multilevel converter (3) is produced.
Further, described filter circuit (4) outfan accesses output transformator (5).
The beneficial effects of the utility model are as follows:
A kind of railway power line cleaner of this practicality is by above-mentioned technical proposal, and is applied to the confession of electric railway electric power Answer system, it is possible to achieve carry out blood pressure lowering using contact net 27.5kV single-phase voltages, by winding transformer carry out voltage transformation and Power Electronic Technique carries out Power Control, and final inversion goes out reliable and stable three-phase voltage, supplies railway by isolating transformer The power supply circuit such as electricity consumption, through track, stick wire in system station.Make power supply in Railways Stations, through track is powered, stick wire powers Be protected, downstream signal, drive a vehicle, early warning of taking precautions against natural calamities, a series of loads such as scheduling can normal reliable, so as to ensure railway security Operation.
【Description of the drawings】
Fig. 1 is a kind of topology example figure of railway power line cleaner of this utility model.
Fig. 2 is a kind of power cell pie graph of railway power line cleaner of this utility model.
【Specific embodiment】
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this Utility model, is not used to limit this utility model.
As shown in Figures 1 and 2:
A kind of railway power line cleaner, including:Soft charge road (1), input tranformer (2), cascade multilevel converter (3), filter circuit (4) and output transformator (5);Its input access trailer system of the railway power line cleaner is single-phase 27.5kV buses, its outfan supply the high-tension electricity supply line such as interior Railways Stations, insertion, self-closing.
Railway power line cleaner its input Jing soft charges road (1) is connected to the input of input tranformer (2), its output Hold the outfan for exporting transformator (5);The outfan of input tranformer (2) accesses cascade multilevel converter (3), and chain type is more Level converter (3) cascaded-output accesses filter circuit (4), is linked into the defeated of output transformator (5) after filter circuit (4) output Enter end.Described soft charge road (1) is formed by resistance R and switch in parallel, accesses input tranformer (2).Input tranformer (2) is Single-phase Multiple coil multi-tap transformator, its outfan extract multigroup single-phase tap out.What input tranformer (2) was extracted out multigroup single-phase takes out Head is supplied to cascade multilevel converter, and cascade multilevel converter is made up of power cell (6) cascade, is formed between three-phase Star connection.Wherein input tranformer (2) secondary number of taps is corresponded with the cascade number of cascade multilevel converter.Work( Rate unit module (6) does not control H bridges (7), DC energy storage flat wave capacitor (8), single-phase full control H bridges (9) and bypass contactor by single-phase (10) constitute.After power cell (6) composition multi-level converter, its output accesses filter circuit (4);Filter circuit (4) is LCR Type filter circuit, the resistance R and electric capacity C of filter circuit are composed in series RC branch roads, and RC branch roads are connected into Y-connection.Filter circuit (4) outfan accesses output transformator (5), and the input winding for exporting transformator (5) is star connection or delta connection, is exported Winding is star connection, star midpoint Jing impedance earths or earth-free.
The present embodiment carries out blood pressure lowering using transformator to contact net voltage, by electric electronic current change technology, by contact net The power quality problem of presence is isolated, and exports reliable and stable voltage.By configuring soft charge road (1) in device input The rush of current for suppressing the electric capacity of power cell to cause when charging;Line output voltage quality optimization is entered by filter circuit (4); Power cell realizes Redundant Control by configuring bypass contactor (10).Can be there is the quality of power supply by this utility model in 27.5kV Problem is isolated, at the same according in Railways Stations, insertion, the railway power supply connection situation such as self-closing configuration output transformator (5) output voltage grade.The present embodiment from complexity, the topological structure of control realization the characteristics of and the side such as cost control Face has obvious advantage.

Claims (5)

1. a kind of railway power line cleaner, including:Soft charge road (1), input tranformer (2), cascade multilevel converter (3), filter circuit (4) and output transformator (5);The railway power line cleaner input accesses trailer system single phase ac 27.5kV, its outfan supply interior Railways Stations, insertion, self-closing three-phase high-voltage electric lines of force road;Railway power line cleaner is by soft Charging circuit (1) is linked into the input of input tranformer (2);The outfan of input tranformer (2) accesses chain type multilevel Device (3), cascade multilevel converter (3) outfan access filter circuit (4), and filter circuit (4) outfan is linked into output and becomes The input of depressor (5);The outfan of output transformator (5) accesses railway power three-phase high-voltage electric lines of force road.
2. railway power line cleaner according to claim 1, it is characterised in that:Described soft charge road (1) by resistance R and Switch in parallel is formed.
3. railway power line cleaner according to claim 1, it is characterised in that:Described input tranformer (2) is single-phase Multiple coil multi-tap isolating transformer, its former limit are single-phase winding, and secondary is multigroup single-phase winding;Input tranformer (2) secondary Multigroup single-phase winding is connected to cascade multilevel converter (3).
4. railway power line cleaner according to claim 1, it is characterised in that:Cascade multilevel converter (3) is by work( Rate unit (6) cascade is formed, and described power cell (6) is by the single-phase H bridges (7), DC energy storage flat wave capacitor (8), single-phase do not controlled Full control H bridges (9) and bypass contactor (10) composition.
5. railway power line cleaner according to claim 1, it is characterised in that:Cascade multilevel converter (3) is exported Filter circuit (4) is accessed, filter circuit (4) output accesses output transformator (5), and the output for exporting transformator (5) accesses railway Electric power three-phase high-voltage electric lines of force road.
CN201621057708.1U 2016-09-18 2016-09-18 Railway purifies power supply unit CN206041817U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621057708.1U CN206041817U (en) 2016-09-18 2016-09-18 Railway purifies power supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621057708.1U CN206041817U (en) 2016-09-18 2016-09-18 Railway purifies power supply unit

Publications (1)

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CN206041817U true CN206041817U (en) 2017-03-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107749718A (en) * 2017-11-28 2018-03-02 陕西兴安润通电气化有限公司 Railway power conditioner and electric current transfer current-limiting method based on electric current transfer current limliting
CN107947597A (en) * 2017-11-28 2018-04-20 陕西兴安润通电气化有限公司 A kind of multifunctional railway power conditioner
CN109353250A (en) * 2018-09-26 2019-02-19 珠海万力达电气自动化有限公司 Take into account the power conditioner of railway power power supply and haulage capacity recycling
CN109687721A (en) * 2018-12-24 2019-04-26 珠海万力达电气自动化有限公司 Three-phase 10kV turns single-phase 27.5kV maintenance electrical locomotive power device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107749718A (en) * 2017-11-28 2018-03-02 陕西兴安润通电气化有限公司 Railway power conditioner and electric current transfer current-limiting method based on electric current transfer current limliting
CN107947597A (en) * 2017-11-28 2018-04-20 陕西兴安润通电气化有限公司 A kind of multifunctional railway power conditioner
CN107749718B (en) * 2017-11-28 2019-12-31 陕西兴安润通电气化有限公司 Railway purifying power supply based on current transfer current limiting and current transfer current limiting method
CN109353250A (en) * 2018-09-26 2019-02-19 珠海万力达电气自动化有限公司 Take into account the power conditioner of railway power power supply and haulage capacity recycling
CN109353250B (en) * 2018-09-26 2019-09-24 珠海万力达电气自动化有限公司 Take into account the power conditioner of railway power power supply and haulage capacity recycling
CN109687721A (en) * 2018-12-24 2019-04-26 珠海万力达电气自动化有限公司 Three-phase 10kV turns single-phase 27.5kV maintenance electrical locomotive power device

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