CN104917129A - DC deicing system and method of connection-segment overhead line system of parking lot of urban rails - Google Patents

DC deicing system and method of connection-segment overhead line system of parking lot of urban rails Download PDF

Info

Publication number
CN104917129A
CN104917129A CN201510282901.9A CN201510282901A CN104917129A CN 104917129 A CN104917129 A CN 104917129A CN 201510282901 A CN201510282901 A CN 201510282901A CN 104917129 A CN104917129 A CN 104917129A
Authority
CN
China
Prior art keywords
contact
ice
icing
net lines
contact net
Prior art date
Application number
CN201510282901.9A
Other languages
Chinese (zh)
Other versions
CN104917129B (en
Inventor
陈元初
黄燕艳
张敏
赵道德
陈洁莲
周方圆
许汝波
陶洪亮
周成
王才孝
吴明水
郭民
王海军
蔡宇峰
李先强
孙茂
初蕊
Original Assignee
株洲变流技术国家工程研究中心有限公司
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.)
Filing date
Publication date
Application filed by 株洲变流技术国家工程研究中心有限公司 filed Critical 株洲变流技术国家工程研究中心有限公司
Priority to CN201510282901.9A priority Critical patent/CN104917129B/en
Publication of CN104917129A publication Critical patent/CN104917129A/en
Application granted granted Critical
Publication of CN104917129B publication Critical patent/CN104917129B/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/16Devices for removing snow or ice from lines or cables
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Abstract

The invention discloses a DC deicing system and method of a connection-segment overhead line system of a parking lot of urban rails. The deicing system comprises a wire inlet switchgear, a DC deicing device and a DC deicing changeover switch, the wire inlet switchgear comprises an inlet wire harness splitting switch and a disconnecting switch, the disconnecting switch is connected between the input end of the DC deicing device and a bus, the inlet wire harness splitting switch is connected between the overhead line system and the bus, and the output end of the DC deicing device is connected to the overhead line system via the DC deicing changeover switch. According to the deicing method, the DC deicing changeover switch selects an icing overhead line system to form a deicing loop, the DC deicing device is used to deice the overhead line system in the deicing loop, and composition of the deicing loop can be flexibly switched. According to the deicing system and method, composition is simple, the engineering and application cost is low, the operationality is high, and the difficulty in deicing of the complex overhead line system is overcome.

Description

A kind of rail parking lot, city contact section contact line direct current ice melting system and de-icing method
Technical field
The present invention relates to a kind of field of urban rail, refer in particular to a kind of direct current ice melting system and the de-icing method that are applicable to rail parking lot, city contact section contact line.
Background technology
In recent years, along with urban track traffic develops rapidly, urban track traffic to have become in medium-and-large-sized city optimum advanced person mode the most easily in passenger traffic.The safety of contact net system becomes the guarantee of the reliable and high-speed cruising of city rail line security.At home in coastal or southern city; due to raw climatic influences in winter; after night line outage, in rail parking lot, city contact section, the phenomenon of built on stilts contact net lines and outdoor contact line circuit icing in ice and snow weather is more and more general, has had a strong impact on the normal operation of city rail vehicle.
At present, direct current ice melting system for electrification railway contact net has relevant research and technology application, but the features such as circuit is simple, circuit distance that electrification railway contact net has, generally adopt three-phase alternating current input to be converted into direct current and export as contact line ice-melt.And rail parking lot, city contact section contact line has that complex circuit is changeable, circuit apart from short, line length differs, the equal feature of wire diameter, when line ice coating, cannot carry out ice-melt in the equally simple even loop of formation of image height iron contact line circuit; And rail existing power supply in city is DC1500V/750V, existing ice melting system cannot meet the ice-melt demand of rail parking lot, city contact section.
As shown in Figure 1, rail parking lot, city contact section contact line is divided into three regions, is respectively main track region, contact section region, parking lot and parking area.Isolated by insulation gap 5 between trizonal contact net lines 6, the contact net system in contact section region, rail parking lot, city connects Parking Area and the transition and conversion system of runing main track, this system line complicated layout, line length differs, wire diameter differs, rail parking lot, city contact section contact line be on the rail contact line main track of city by some contact line branch roads that separated time is formed, be connected to car park areas.Therefore, be not suitable for the ice-melt of rail parking lot, city contact section contact line for the direct current ice melting system of electrification railway contact net and de-icing method, seek that a kind of structure is simple, reliable, to adapt to rail parking lot, city contact section contact line circuit be the task of top priority apart from short, that topological structure is complicated ice melting system.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical problem existed for prior art, the invention provides that a kind of structure is simple, rail parking lot, city contact section contact line direct current ice melting system that good reliability, ice-melt are effective and de-icing method.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is: rail parking lot, a kind of city contact section contact line direct current ice melting system, comprises incoming line switch cabinet, DC de-icing device and DC ice melting diverter switch; Described incoming line switch cabinet comprises isolating switch and inlet wire Shu Xielie switch, and described isolating switch is connected between DC de-icing device input and bus, and described inlet wire Shu Xielie switch is connected between contact net lines and bus; The input of described DC de-icing device is connected with bus by isolating switch, and the output of described DC de-icing device is connected with contact net lines by DC ice melting diverter switch.
As a further improvement on the present invention, described DC de-icing device comprises DC/DC current transformer, and the input of described DC/DC current transformer is connected with bus by isolating switch, and the output of described DC/DC current transformer is connected with DC ice melting diverter switch.
As a further improvement on the present invention, described DC ice melting diverter switch is divided into two groups, and one group is connected between the output head anode of DC de-icing device and contact net lines, and another group is connected between the negative pole of output end of DC de-icing device and contact net lines.
As a further improvement on the present invention, described two groups of DC ice melting diverter switches connect different contact net lines respectively.
As a further improvement on the present invention, described contact net lines sorts from long to short according to length, and be divided into two groups of uniform amount, one group of contact net lines is connected with the output head anode of DC de-icing device by one group of DC ice melting diverter switch, and another group contact net lines is connected with the negative pole of output end of DC de-icing device by another group DC ice melting diverter switch.
As a further improvement on the present invention, described DC de-icing device is connected with the end near parking lot section insulation gap in contact section contact net lines by DC ice melting diverter switch.
A kind of rail parking lot, city contact section contact line direct current ice melting method, comprises the steps:
S1. direct current ice melting system drops into: disconnect inlet wire Shu Xielie switch, and closed isolating switch, drops into direct current ice melting system;
S2. DC ice melting: close and comprise DC ice melting diverter switch corresponding to icing contact net lines two contact net lines, make described two contact net lines form ice-melt loop, starting DC de-icing device, is the ice-melt of icing contact net lines;
S3. direct current ice melting system exits: the operation stopping DC de-icing device, disconnects DC ice melting diverter switch, disconnects isolating switch, and closed inlet wire Shu Xielie switch, exits direct current ice melting system, the normal power supply of the net system that resumes contacts.
As a further improvement on the present invention, described DC ice melting process comprises single line ice-melt mode, and the concrete steps of its deicing processes comprise:
S11. the DC ice melting diverter switch of closed icing contact net lines;
S12. the contact net lines forming the longest loop with described icing contact net lines is selected, the DC ice melting diverter switch that this contact net lines closed is corresponding;
S13. starting DC de-icing device, is contact net lines ice-melt;
S14. contact net lines ice-melt completes, and stops DC de-icing device, disconnects the DC ice melting diverter switch that described ice-melt loop contact net lines is corresponding.
As a further improvement on the present invention, described DC ice melting process comprises multi-line ice-melt mode, and its ice-melt step comprises:
S21. an icing contact net lines is selected, and the DC ice melting diverter switch of this contact net lines closed;
S22. judge whether the contact net lines forming ice-melt loop with described icing contact net lines completes ice-melt all, is jump to step S23, otherwise jumps to step S24;
S23. select one and form the contact net lines in the longest loop with described icing contact net lines, and the DC ice melting diverter switch of this contact net lines closed, jump to step S25;
S24. select one and form the icing contact net lines in the longest loop with described icing contact net lines, and the DC ice melting diverter switch of this contact net lines closed, jump to step S25;
S25. DC de-icing device is started, for being in the contact net lines ice-melt in ice-melt loop;
S26. contact net lines ice-melt completes, and stops DC de-icing device, disconnects the DC ice melting diverter switch that described ice-melt loop contact net lines is corresponding;
S27. judge whether all icing circuits complete ice-melt all, are terminate deicing processes, otherwise jump to step S21.
Compared with prior art, the invention has the advantages that:
1, rail parking lot, city of the present invention contact section contact line direct current ice melting system and de-icing method, city rail is utilized to adopt the feature of DC1500V/750V electric power system, adopt the power supply of electric power system as direct current ice melting system of the present invention of city rail, utilize the insulation gap that contact line is existing, and realize the switching of parking lot contact section contact line between normal operating condition and ice-melt state by incoming line switch cabinet, when ice-melt state, the contact line of parking lot contact section forms independently DC ice melting loop, can not have influence on the normal operation of city rail contact line main track.
2, the present invention by DC ice melting diverter switch can realize DC ice-melting flexible, switch at random, by different ice-melt mode, can greatly shorten the ice-melt time.
The problem of the ice-melt difficulty that 3, rail parking lot, city of the present invention contact section contact line direct current ice melting system composition is simple, engineer applied cost is low, workable, solve complicated contact net system.
Accompanying drawing explanation
Fig. 1 is rail parking lot, prior art city contact section contact net system operating mode schematic diagram.
Fig. 2 is the structural representation of rail parking lot, city of the present invention contact section contact line ice melting system in embody rule example.
Fig. 3 is DC ice melting diverter switch function of the present invention and switches schematic diagram.
Fig. 4 is the schematic flow sheet of rail parking lot, city of the present invention contact section contact line de-icing method.
Marginal data: 1, incoming line switch cabinet; 11, isolating switch; 12, inlet wire Shu Xielie switch; 2, DC de-icing device; 21, DC/DC current transformer; 3, DC ice melting diverter switch; 4, bus; 5, insulation gap; 6, contact net lines.
Embodiment
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection range not thereby limiting the invention.
As shown in Figure 2, a kind of rail parking lot, city contact of the present invention section contact line direct current ice melting system comprises incoming line switch cabinet 1, DC de-icing device 2 and DC ice melting diverter switch 3.Incoming line switch cabinet 1 comprises isolating switch 11 and inlet wire Shu Xielie switch 12, and wherein, isolating switch 11 is connected between DC de-icing device 2 input and bus 4, and inlet wire Shu Xielie switch 12 is connected between contact line 6 and bus 4.DC de-icing device 2 input is connected with bus 4 by isolating switch 11, and output is connected with contact line 6 by DC ice melting diverter switch 3.The present embodiment median generatrix 4 is 1500V DC power supply bus.Certainly, for the city rail system adopting 750V direct current supply, this bus 4 is 750V DC power supply bus.
In the present embodiment, DC de-icing device 2 comprises DC/DC current transformer 21, by DC/DC current transformer 21 by input direct current through inversion rectification again, be adjusted to the direct current meeting contact line line ice-melting needs, according to line ice-melting need adjust ice melting current easily.
In the present embodiment, as shown in Figure 3, DC ice melting diverter switch 3 is divided into two groups, equally the parking lot section of contact contact net lines 6 is also divided into two groups, and two line DC ice melting diverter switches 3 connect positive pole and the negative pole of two groups of contact net lines 6 and DC de-icing device 2 output respectively.The foundation of being divided into groups by the parking lot section of contact contact line sorts to the length of parking lot contact section contact net lines 6, here length refers to that parking lot contact section contact line and car park areas contact line insulation gap 5 arrive the length of contact line main track tie point, and be divided into uniform two groups according to sorted result, as in Fig. 3, L1, L2 are divided into one group, and L3, L4 and L5 are divided into one group.Due to length the stablizing the operation of direct current ice melting system in ice-melt loop, ice-melt loop is too short is unfavorable for the control of ice melting system to ice melting current, by the grouping to DC ice melting diverter switch 3 and parking lot contact section contact net lines 6, the complexity of the circuit of direct current ice melting system and the complexity of control can be effectively reduced, thus make the length in any ice-melt loop can meet the requirement of ice melting system.It should be noted that, also respectively the positive pole of DC de-icing device 2 output can be connected with contact net lines 6 with negative pole by two groups of DC ice melting switches, thus can by selecting closed different DC ice melting diverter switch 3, any two contact net lines 6 are made to form ice-melt loop, but the circuit of ice melting system can be made more complicated, and control contact net lines 6 being carried out to ice-melt is also more complicated simultaneously.
In the present embodiment, DC de-icing device 2 is connected with the end of contact section contact net lines 6 near parking lot section insulation gap 5 by DC ice melting diverter switch 3, thus can ensure that rail parking lot, city contact section contact net lines 6 is all in ice-melt loop.
As shown in Figure 4, rail parking lot, a kind of city contact section contact line direct current ice melting method, its ice-melt step comprises:
S1. direct current ice melting system drops into: disconnect inlet wire Shu Xielie switch 12, and closed isolating switch 11, drops into direct current ice melting system;
S2. DC ice melting: the closed DC ice melting diverter switch 3 comprising icing contact net lines 6 two contact net lines 6 correspondences, make contact line form ice-melt loop, starting deicing device, is icing contact net lines 6 ice-melt;
S3. direct current ice melting system exits: the operation stopping DC de-icing device 2, disconnects DC ice melting diverter switch 3, disconnects isolating switch 11, and closed inlet wire Shu Xielie switch 12, exits direct current ice melting system, the normal power supply of the net system that resumes contacts.
DC ice melting process comprises single line ice-melt mode, and concrete steps comprise: S11. closes the DC ice melting diverter switch 3 of icing contact net lines 6; S12. the contact net lines 6 forming the longest loop with described icing contact net lines 6 is selected, the DC ice melting diverter switch 3 of this contact net lines 6 correspondence closed; S13. starting DC de-icing device 2, is contact net lines 6 ice-melt; S14. contact net lines 6 ice-melt completes, and stops DC de-icing device 2, disconnects the DC ice melting diverter switch 3 of described ice-melt loop contact net lines 6 correspondence.As shown in Figure 3, suppose contact net lines L1 icing, adopt single line ice-melt mode, the DC ice melting diverter switch K1 that closed contact net lines L1 is corresponding, selects the contact net lines L3 forming the longest ice-melt loop with L1, and the DC ice melting diverter switch K3 that closed L3 is corresponding, thus form one by DC de-icing device positive pole, K1, L1, L3, K3, the ice-melt loop of DC de-icing device negative pole composition, starts DC de-icing device 2, to contact net lines L1 ice-melt.
DC ice melting process comprises multi-line ice-melt mode, and its ice-melt step comprises: S21. selects an icing contact net lines 6, and the DC ice melting diverter switch 3 of this contact net lines 6 closed; S22. judge whether the contact net lines 6 forming ice-melt loop with described icing contact net lines 6 completes ice-melt all, is jump to step S23, otherwise jumps to step S24; S23. select one and form the contact net lines 6 in the longest loop with described icing contact net lines 6, and the DC ice melting diverter switch 3 of this contact net lines 6 closed, jump to step S25; S24. select one and form the icing contact net lines 6 in the longest loop with described icing contact net lines 6, and the DC ice melting diverter switch 3 of this contact net lines 6 closed, jump to step S25; S25. DC de-icing device 2 is started, for being in contact net lines 6 ice-melt in ice-melt loop; S26. contact net lines 6 ice-melt completes, and stops DC de-icing device 2, disconnects the DC ice melting diverter switch 3 of described ice-melt loop contact net lines 6 correspondence; S27. judge whether all icing circuits complete ice-melt all, are terminate deicing processes, otherwise jump to step S21.
As shown in Figure 3, suppose contact net lines L1, to the whole icing of L5, adopt multi-line ice-melt mode, the DC ice melting diverter switch K1 that closed contact net lines L1 is corresponding, select the contact net lines L3 forming the longest ice-melt loop with L1, and the DC ice melting diverter switch K3 that closed L3 is corresponding, thus form one by DC de-icing device positive pole, K1, L1, L3, K3, the ice-melt loop of DC de-icing device negative pole composition, start DC de-icing device 2, to contact net lines L1 and L3 ice-melt, after contact net lines L1 and L3 ice-melt complete, stop DC de-icing device 2, and disconnect DC ice melting diverter switch K1, K3, in the same way ice-melt is carried out to contact net lines L2 and L4.After ice-melt is completed to L1, L2, L3, L4, only there is contact net lines L5 icing, now, the DC ice melting diverter switch K5 that closed contact net lines L5 is corresponding, and select the contact net lines L1 forming the longest ice-melt loop with contact net lines L5, the DC ice melting diverter switch K1 that closed pair is answered, by DC de-icing device positive pole, K1, L1, L5, K5, the ice-melt loop of DC de-icing device negative pole is to contact net lines L5 ice-melt.After all icing circuits all complete ice-melt, disconnect isolating switch 11, closed inlet wire Shu Xielie switch 12, exits direct current ice melting system, the normal power supply of the net system that resumes contacts.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.

Claims (9)

1. a city rail parking lot contact section contact line direct current ice melting system, is characterized in that, comprising: incoming line switch cabinet (1), DC de-icing device (2) and DC ice melting diverter switch (3); Described incoming line switch cabinet (1) comprises isolating switch (11) and inlet wire Shu Xielie switch (12), described isolating switch (11) is connected between DC de-icing device (2) input and bus (4), and described inlet wire Shu Xielie switch (12) is connected between contact net lines and bus (4); The input of described DC de-icing device (2) is connected with bus (4) by isolating switch (11), and the output of described DC de-icing device (2) is connected with contact net lines (6) by DC ice melting diverter switch (3).
2. rail parking lot, city according to claim 1 contact section contact line direct current ice melting system, it is characterized in that: described DC de-icing device (2) comprises DC/DC current transformer (21), the input of described DC/DC current transformer (21) is connected with bus (4) by isolating switch (11), and the output of described DC/DC current transformer (21) is connected with DC ice melting diverter switch (3).
3. rail parking lot, city according to claim 1 contact section contact line direct current ice melting system, it is characterized in that: described DC ice melting diverter switch (3) is divided into two groups, one group is connected between the output head anode of DC de-icing device (2) and contact net lines (6), and another group is connected between the negative pole of output end of DC de-icing device (2) and contact net lines (6).
4. rail parking lot, city according to claim 3 contact section contact line direct current ice melting system, is characterized in that: described two groups of DC ice melting diverter switches (3) connect different contact net lines (6) respectively.
5. rail parking lot, city according to claim 4 contact section contact line direct current ice melting system, it is characterized in that: described contact net lines (6) sorts from long to short according to length, and be divided into two groups of uniform amount, one group of contact net lines (6) is connected with the output head anode of DC de-icing device (2) by described one group of DC ice melting diverter switch (3), and another group contact net lines (6) is connected with the negative pole of output end of DC de-icing device (2) by another group DC ice melting diverter switch (3) described.
6. rail parking lot, the city contact section contact line direct current ice melting system according to any one of Claims 1 to 5, is characterized in that: described DC de-icing device (2) is connected with the end near parking lot section insulation gap (5) in contact section contact net lines (6) by DC ice melting diverter switch (3).
7., according to rail parking lot, the city contact section contact line direct current ice melting method of direct current ice melting system described in any one in claim 1 ~ 6, it is characterized in that, step is:
S1. direct current ice melting system drops into: disconnect inlet wire Shu Xielie switch (12), and closed isolating switch (11), drops into direct current ice melting system;
S2. DC ice melting: the closed DC ice melting diverter switch (3) comprising icing contact net lines (6) two contact net lines (6) correspondences, described two contact net lines (6) are made to form ice-melt loop, starting DC de-icing device (2), is icing contact net lines (6) ice-melt;
S3. direct current ice melting system exits: the operation stopping DC de-icing device (2), disconnect DC ice melting diverter switch (3), disconnect isolating switch (11), closed inlet wire Shu Xielie switch (12), exit direct current ice melting system, the normal power supply of the net system that resumes contacts.
8. rail parking lot, city according to claim 7 contact section contact line direct current ice melting method, it is characterized in that: described DC ice melting process comprises single line ice-melt mode, the step of described single line ice-melt mode is:
S11. the DC ice melting diverter switch (3) of closed icing contact net lines (6);
S12. the contact net lines (6) forming the longest loop with described icing contact net lines (6) is selected, the DC ice melting diverter switch (3) that closed this contact net lines (6) is corresponding;
S13. starting DC de-icing device (2), is contact net lines (6) ice-melt;
S14. contact net lines (6) ice-melt completes, and stops DC de-icing device (2), disconnects the DC ice melting diverter switch (3) that described ice-melt loop contact net lines (6) is corresponding.
9. rail parking lot, the city contact section contact line direct current ice melting method according to claim 7 or 8, it is characterized in that: described DC ice melting process comprises multi-line ice-melt mode, the step of described multi-line ice-melt mode is:
S21. an icing contact net lines (6) is selected, and the DC ice melting diverter switch (3) of closed this contact net lines (6);
S22. judge whether the contact net lines (6) forming ice-melt loop with described icing contact net lines (6) completes ice-melt all, is jump to step S23, otherwise jumps to step S24;
S23. select one and form the contact net lines (6) in the longest loop with described icing contact net lines (6), and the DC ice melting diverter switch (3) of closed this contact net lines (6), jump to step S25;
S24. select one and form the icing contact net lines (6) in the longest loop with described icing contact net lines (6), and the DC ice melting diverter switch (3) of closed this contact net lines (6), jump to step S25;
S25. DC de-icing device (2) is started, for being in contact net lines (6) ice-melt in ice-melt loop;
S26. contact net lines (6) ice-melt completes, and stops DC de-icing device (2), disconnects the DC ice melting diverter switch (3) that described ice-melt loop contact net lines (6) is corresponding;
S27. judge whether all icing circuits complete ice-melt all, are terminate deicing processes, otherwise jump to step S21.
CN201510282901.9A 2015-05-28 2015-05-28 A kind of urban rail parking lot contact section contact net direct current ice melting system and de-icing method CN104917129B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510282901.9A CN104917129B (en) 2015-05-28 2015-05-28 A kind of urban rail parking lot contact section contact net direct current ice melting system and de-icing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510282901.9A CN104917129B (en) 2015-05-28 2015-05-28 A kind of urban rail parking lot contact section contact net direct current ice melting system and de-icing method

Publications (2)

Publication Number Publication Date
CN104917129A true CN104917129A (en) 2015-09-16
CN104917129B CN104917129B (en) 2017-12-15

Family

ID=54085952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510282901.9A CN104917129B (en) 2015-05-28 2015-05-28 A kind of urban rail parking lot contact section contact net direct current ice melting system and de-icing method

Country Status (1)

Country Link
CN (1) CN104917129B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212311A (en) * 1982-05-31 1983-12-10 Tokyo Shibaura Electric Co Method of fusing snow of transmission line
CN201332248Y (en) * 2008-12-31 2009-10-21 许继集团有限公司 DC ice melting switching device
CN103490645A (en) * 2013-09-23 2014-01-01 株洲变流技术国家工程研究中心有限公司 Single-phase electrified railway contact net direct-current deicing device and system
CN203813384U (en) * 2014-03-07 2014-09-03 南方电网科学研究院有限责任公司 DC deicing device based on voltage source converter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212311A (en) * 1982-05-31 1983-12-10 Tokyo Shibaura Electric Co Method of fusing snow of transmission line
CN201332248Y (en) * 2008-12-31 2009-10-21 许继集团有限公司 DC ice melting switching device
CN103490645A (en) * 2013-09-23 2014-01-01 株洲变流技术国家工程研究中心有限公司 Single-phase electrified railway contact net direct-current deicing device and system
CN203813384U (en) * 2014-03-07 2014-09-03 南方电网科学研究院有限责任公司 DC deicing device based on voltage source converter

Also Published As

Publication number Publication date
CN104917129B (en) 2017-12-15

Similar Documents

Publication Publication Date Title
US8544622B2 (en) Producing electromagnetic fields for transferring electric energy to a vehicle
CN102821999B (en) A system adapted for one or more electrically propellable vehicles (rail structure)
CN104539030B (en) A kind of direct current of power dynamically distributes quickly double charging systems and control method
CA2573135C (en) Electric car control apparatus
CN106428035B (en) A kind of main circuit system suitable for energy storage type tramcar
ES2302151T5 (en) Traction network power supply system
CN105459839B (en) Double-standard current collecting system and method
CN102424004A (en) Motor train unit line-side circuit and control method thereof
CN202080152U (en) Auxiliary power supply device for vehicles
CN101552444A (en) System and method for deicing of power line cables
CN105059128B (en) A kind of EMS and control method for trolleybus
CN103818271B (en) A kind of ground surface over-current neutral section based on cascade connection multi-level
CN105799553B (en) A kind of electronic type ground automatic neutral-section passing device
FR2915435A1 (en) System, substation and method for recovering the braking energy of railway vehicles, railway vehicles for this system.
CN102381198A (en) High-voltage circuit for electric locomotive unit
CN1816462A (en) Surge limiter for a traction power converter
CN101689757B (en) Ice-melting device for bundle conductor transmission line and thereof method
CN102195260B (en) Power-frequency online anti-icing de-icing method for electrified railway contact network
EP3321125A1 (en) Intelligent electric phase splitting device for alternating-current electrified railway
CN102844217B (en) A system adapted for one or more electrically propellable vehicles (letting water pass by electrical conductors)
RU2675765C2 (en) Electrified railway system without negative sequence throughout whole process and without power supply networks at intervals
CN103552486A (en) Track circuit
CN104071018A (en) Power supply circuit for train, train and power supply control method
CN107161034B (en) A kind of power supply system of magnetic suspension train
CN105857118B (en) A kind of rail traffic powered construction

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant