CN103264644B - Short rail type electric sectioning structure - Google Patents
Short rail type electric sectioning structure Download PDFInfo
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- CN103264644B CN103264644B CN201310183768.2A CN201310183768A CN103264644B CN 103264644 B CN103264644 B CN 103264644B CN 201310183768 A CN201310183768 A CN 201310183768A CN 103264644 B CN103264644 B CN 103264644B
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Abstract
The invention discloses a short rail type electric sectioning structure which comprises a first short rail, a second short rail, a corresponding first short rail and a corresponding section short rail, wherein the first short rail and the second short rail are separated from a contact rail on one inner side of a platform section, and the corresponding first short rail and the corresponding second short rail are separated from a contact rail on the other side. Electricity of each first short rail is supplied by a first direct current contactor, electricity of each second short rail is supplied by a second direct current contactor, the first short rail and the second short rail on each contact rail are in non-electric connection, the contact rail part except for the first short rail and the second short rail on each contact rail on the corresponding side are connected to power substations through cables respectively, and the power substations are connected with the first direct current contactors and the second direct current contactors on the contact rails of the corresponding sides through cables. The short rail type electric sectioning structure can uninterruptedly supply power to vehicles in normal operation, and when one power supplying section has electrical failure, the fact that adjacent power supplying sections can have electrical failure due to circuit conduction in the vehicles can be prevented.
Description
Technical field
The present invention, about a kind of urban track traffic and inter-city rail transit tractive power supply system, refers to a kind of short rail electricity segmental structure taking into account vehicle marshalling near, at a specified future date especially.
Background technology
What early stage subway adopted is that disconnected gauge is from the broken rail electricity segmentation for 14m, must be arranged in the coasting district before vehicle pull-in, for with the vehicle of single-unit motor-car for independent traction unit, when vehicle in early days does not generally possess regenerative braking capability, vehicle the coasting section traction electric machine that enters the station stop getting after stream by 14m break the electric segmentation of rail time generally do not have very large electric arc yet, substantially can meet Operational requirements, but room light can be subject to temporary influence.
Vehicle generally all has regenerative braking capability now, if continue to continue to use the segmentation of broken rail electricity, and arrange broken rail electricity segmentation disconnected gauge from the pantagraph current collector spacing being greater than a vehicle traction unit, no matter then vehicle is getting stream operation or in electric braking state, all may produce larger electric arc, scaling loss contact rail and pantagraph current collector slide plate, under frequent powering-off state, in car, appliance life shortens, and maintenance capacity increases, and causes operating cost to increase.And if the disconnected gauge of broken rail electricity segmentation is from the pantagraph current collector spacing being less than a vehicle traction unit, when then likely there is power outage suddenly in a power supply zone and have little time to avoid vehicle to swarm into dead electricity district, be communicated with electrical partitioning in bad order and failure-free adjacent electrical subregion, not only expand accident impact scope, and may greater loss be brought in some cases.
And the short rail electricity segmentation adopted at present has taken into account above-mentioned various aspects preferably; but the reasonableness of short rail setting position must be paid special attention to; if it is improper to arrange; may occur that larger sudden change causes fender guard misoperation at vehicle launch period of acceleration feeder current, also still have electric arc between pantagraph current collector and contact rail and occur.Current short rail electricity step-by-step arrangement form has following two schemes:
Scheme one: short rail is arranged in vehicle pull-in end at traction substation place, the contact rail in short rail and vehicle operating front is powered by same feeder line, short rail length is pressed vehicle traction unit length and is arranged, when vehicle starts in standing, all pantagraph current collectors all get stream from the same feeding section of train working direction, do not exist by two different feeder lines to same traction unit power and train advance in feeding section transfer problem, each traction unit has higher gets stream stability.But the shortcoming of the program must adjust short rail position when vehicle marshalling adjustment near, at a specified future date.
Scheme two: short rail length is arranged by full vehicle commander's degree, and electrical wiring mode is identical with scheme one, but on short rail feed pathway the discharge capacity of DC contactor to need increasing to be twice above.The advantage of scheme two need not adjust short rail position when vehicle marshalling adjustment near, at a specified future date, and shortcoming is that high-capacity direct current contactless switch needs import, and price is high; When DC contactor and be connected with short rail cable et out of order time vehicle may be made in standing to lose kinetic energy, and then cause backlog.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of short rail electricity segmental structure can taken into account vehicle marshalling near, at a specified future date and avoid backlog.
For achieving the above object, the invention provides a kind of short rail electricity segmental structure, it to comprise in platform section isolated first short rail and the first corresponding short rail isolated on the second short rail and opposite side contact rail and the second short rail on the contact rail of side, wherein each first short rail is powered by first DC contactor, each second short rail is powered by second DC contactor, the first short rail on each side joint rail-engaging and between the second short rail without being electrically connected, except the contact rail part of the first short rail except the second short rail is connected to different substations each via cable on each side joint rail-engaging, each substation is connected to the first DC contactor and the second DC contactor that this side joint rail-engaging connects by cable.
Wherein be connected with disconnector between the second DC contactor of side contact rail and be connected substation, between the first DC contactor of opposite side contact rail and be connected substation, be connected with another disconnector.
Described first short rail on each side joint rail-engaging is equal with train total length with the second short rail overall length.
Described first short rail on each side joint rail-engaging and the second short rail are independently arranged separately.
The present invention's short rail electricity segmental structure can keep uninterrupted power supply when normal operation to vehicle, owing to adopting two sections of short rails (the first short rail, the second short rail), compared with the existing scheme that one section of short rail is only set, not because the conduction of train internal circuit causes adjacent power supply zone also to occur electrical accident when can avoid occurring electrical accident in a power supply zone, better can take into account vehicle marshalling near, at a specified future date simultaneously.In addition, because the present invention adopts two DC contactor, compared with the existing scheme only arranging a DC contactor, can avoid adopting high-capacity DC contactor, economic benefit is more excellent.
Accompanying drawing explanation
Fig. 1 is the enforcement constitution diagram of the present invention's short rail electricity segmental structure.
Detailed description of the invention
For ease of having further understanding to structure of the present invention and the effect that reaches, the existing preferred embodiment that develops simultaneously by reference to the accompanying drawings is described in detail as follows.
As shown in Figure 1, the present invention's short rail electricity segmental structure to comprise in platform section isolated first short rail 1 and the first corresponding short rail 1 and the second short rail 2 isolated on the second short rail 2 and opposite side contact rail on the contact rail of side, wherein each first short rail 1 is powered by first DC contactor 10, each second short rail 2 is powered by second DC contactor 20, without being electrically connected between on each side joint rail-engaging first short rail 1 and the second short rail 2, except the contact rail part of the first short rail 1 except the second short rail 2 is connected to different substations each via cable on each side joint rail-engaging, each substation is connected to the first DC contactor 10 and the second DC contactor 20 that this side joint rail-engaging connects by cable.
As shown in Figure 1, the single hop short circuit rail-engaging be generally used for as electric segmentation facility between adjacent current supply circuit is changed into two sections of short circuit rail-engagings in the present invention, i.e. the first short rail 1 and the second short rail 2, the length of each section of short circuit rail-engaging is corresponding by the pantagraph current collector spacing of electric unit with train internal independence, two sections of short circuit rail-engagings are powered by two DC contactor respectively, two sections of short circuit rail-engaging overall lengths are close with train total length or equal, and two sections of short circuit rail-engagings can mechanically independently separately be arranged, without electrical connection.Wherein be connected with disconnector 3 between the second DC contactor 20 of side contact rail and be connected substation, another disconnector 4 is connected with between first DC contactor 10 of opposite side contact rail and be connected substation, when on the contactless switch that one of them short rail is powered or circuit, other associated electrical components is deactivated for some reason, another short rail still can be powered to vehicle, when close with train total length as short section of contact rail length of sectioning device part, full car loses kinetic energy because of single hop short circuit rail-engaging dead electricity to prevent vehicle, and then block lines causes operation to be stagnated.
The program optimizes short rail electricity step-by-step arrangement form, need not adjust short rail position when vehicle marshalling adjustment near, at a specified future date, vehicle may be made to lose kinetic energy during the cable et out of order that also there will not be DC contactor and be connected with short rail, and then cause the situation of backlog, improve the reliability of power supply and Transportation Organization, simultaneously because the present invention adopts two DC contactor, compared with the existing scheme that a DC contactor is only set, without the need to adopting high-capacity direct current contactless switch, while reaching technical index, again save cost.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (3)
1. one kind short rail electricity segmental structure, it is characterized in that, it is for DC traction system, this short rail electricity segmental structure to comprise in platform section isolated first short rail and the first corresponding short rail isolated on the second short rail and opposite side contact rail and the second short rail on the contact rail of side, wherein first of the same side the short rail and stay at regular intervals between the second short rail and other contact rails, wherein each first short rail is powered by first DC contactor, each second short rail is powered by second DC contactor, the first short rail on each side joint rail-engaging and between the second short rail without being electrically connected, contact rail part on each side joint rail-engaging except the first short rail and the second short rail is connected to substation each via cable, each substation is connected to the first DC contactor and the second DC contactor that this side joint rail-engaging connects by cable,
Described first short rail on each side joint rail-engaging need not adjust short rail position when adjusting with equal with train total length, near, the at a specified future date vehicle marshalling of the second short rail overall length.
2. short rail electricity segmental structure as claimed in claim 1, it is characterized in that, wherein be connected with disconnector between the second DC contactor of side contact rail and be connected substation, between the first DC contactor of opposite side contact rail and be connected substation, be connected with another disconnector.
3. short rail electricity segmental structure as claimed in claim 1, it is characterized in that, the described first short rail on each side joint rail-engaging and the second short rail are independently arranged separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183768.2A CN103264644B (en) | 2013-05-17 | 2013-05-17 | Short rail type electric sectioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183768.2A CN103264644B (en) | 2013-05-17 | 2013-05-17 | Short rail type electric sectioning structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103264644A CN103264644A (en) | 2013-08-28 |
| CN103264644B true CN103264644B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310183768.2A Active CN103264644B (en) | 2013-05-17 | 2013-05-17 | Short rail type electric sectioning structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162808B (en) * | 2017-12-27 | 2021-06-18 | 中车大连机车车辆有限公司 | Transition device for feed module of segmented continuous ground power supply system of electric vehicle |
| CN109455111B (en) * | 2018-11-14 | 2020-11-13 | 中车株洲电力机车有限公司 | Power supply system for rubber-tyred rail vehicle and rail thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE456664B (en) * | 1985-03-11 | 1988-10-24 | Asea Ab | DC contact lead feed equipment for overhead fed rail vehicles |
| CN102729841A (en) * | 2012-07-03 | 2012-10-17 | 南车株洲电力机车研究所有限公司 | Power supply arm wiring system and anchor articulated type split-phase system |
| CN203254981U (en) * | 2013-05-17 | 2013-10-30 | 中铁第四勘察设计院集团有限公司 | Short-rail type electric segmental structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5766032A (en) * | 1980-10-09 | 1982-04-22 | Mitsubishi Electric Corp | Semiconductor type feeder section apparatus for electric railway |
| JP2000071820A (en) * | 1998-09-04 | 2000-03-07 | Meidensha Corp | Ac feeder system |
-
2013
- 2013-05-17 CN CN201310183768.2A patent/CN103264644B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE456664B (en) * | 1985-03-11 | 1988-10-24 | Asea Ab | DC contact lead feed equipment for overhead fed rail vehicles |
| CN102729841A (en) * | 2012-07-03 | 2012-10-17 | 南车株洲电力机车研究所有限公司 | Power supply arm wiring system and anchor articulated type split-phase system |
| CN203254981U (en) * | 2013-05-17 | 2013-10-30 | 中铁第四勘察设计院集团有限公司 | Short-rail type electric segmental structure |
Non-Patent Citations (1)
| Title |
|---|
| 城市轨道交通正线牵引变电所处接触轨电分段的设置;何斌;《铁道勘测与设计》;20051015(第5期);第47-49页 * |
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| CN103264644A (en) | 2013-08-28 |
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