CN102638019B - Direct-current catenary de-icing method of high-speed electrified railway - Google Patents
Direct-current catenary de-icing method of high-speed electrified railway Download PDFInfo
- Publication number
- CN102638019B CN102638019B CN201210101221.9A CN201210101221A CN102638019B CN 102638019 B CN102638019 B CN 102638019B CN 201210101221 A CN201210101221 A CN 201210101221A CN 102638019 B CN102638019 B CN 102638019B
- Authority
- CN
- China
- Prior art keywords
- contact line
- feeder switch
- switch
- ice melting
- feeder
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Abstract
The invention discloses a direct-current catenary de-icing method of a high-speed electrified railway. The direct-current catenary de-icing method comprises direct-current catenary de-icing equipment input and quit processes. The input process comprises the following steps that: when a direct-current de-icing system monitors the icing state of a catenary and puts forward a de-icing demand, corresponding feeder switches and catenary switches are switched off by an electric power control center in a long distance, a substation is switched to be in a direct-current catenary de-icing operation state from a normal traction power supply state, and corresponding direct-current de-icing on-off switches, catenary switches and feeder switches in the substation are closed to input direct-current de-icing equipment. The quit process comprises the following steps that: the de-icing equipment is shut down, the corresponding direct-current de-icing on-off switches, feeder switches and catenary switches are disconnected to break the disconnection between the de-icing equipment and the substation and the catenary, and the corresponding feeder switches and catenary switches are closed to switch the feeder switches to be in a traction power supply state of an electric locomotive. According to the direct-current catenary de-icing method, the concentration and systematization of functions are realized, the operation and maintenance are safe, convenient and efficient, and the installation ways are flexible and changeable.
Description
Technical field
The present invention relates to a kind of direct current ice melting method being applied to field of power supply line, especially a kind of Highspeed Catenary direct current ice melting method.
Background technology
In recent years, China's electric railway construction enters the high speed development stage, and novel high-power hands over orthogonal electric locomotive progressively to become main force's vehicle of China's electric railway especially high-speed railway.Especially tractive power supply system is wherein responsible for the important task providing electric energy to bullet train especially, is that train safe is reliable, the key factor of Effec-tive Function.
But along with the change of Global Temperature, south China, Central China, East China have all occurred that ice and snow that history is rare congeals disaster, especially in Hunan, Guizhou, Jiangxi Province's most area be disaster-stricken particularly serious, electric power facility is subject to unprecedented destruction.And for electric railway, easily cause electrified contacting nets to freeze because the interval time of train operation is comparatively large, night stops transport.Contact line icing will cause pantograph normally cannot get stream, will cause infringement or the fracture of pantograph time serious, will affect the safety of train and run on schedule, seems particularly outstanding especially for problem more than rail track more than 200km/h speed per hour.
At present, in the various solutions for the electric line icing of electric power system, through practical application and expert evaluation, DC ice melting method is solution reliable, the most most economical at present.And for electrification railway contact net de-icing method, content relevant to present patent application in the middle of prior art mainly contains with Publication about Document:
Document one is that China Railway First Investigation Designing Institute Group Co., Ltd applied on 07 23rd, 2009, and open on 05 05th, 2010, and publication number is the utility model patent " a kind of electrification railway contact net direct current ice melting system " of CN201446892U.The direct current ice melting system related in this utility model patent arranges and is fixed in electric substation, portable ice-melt cannot be realized, bus is connected with DC ice melting current-limiting apparatus by circuit breaker, isolating switch, and the output cable of DC ice melting current-limiting apparatus forms loop by DC load isolating switch, section post circuit breaker, direct-current isolating switch and uplink and downlink contact line.The shortcoming of this system is that AC power adopts single phase power supply, and after rectification, wave distortion is serious, causes power factor low.
Document two is that China Railway First Investigation Designing Institute Group Co., Ltd applied on 07 23rd, 2009, and open on 09 01st, 2010, and publication number is the utility model patent " a kind of Electrified railway catenary AC ice melting system " of CN201566513U.System involved by this patent is that contact line exchanges current limliting ice-melt, is arranged on section post, adopts the adjustment ice melting current values such as ice-melt resistance box, ice-melt capacitor box to realize ice-melt.The shortcoming of the method adopts resistance current limliting, and energy loss is large.
Document three is published in the paper " a kind of contact wire Anti-freezing embodiment for Line for Passenger Transportation " on " electric railway " of the 4th phase in 2010 for Li Hanqing.The document proposes a kind of anti-icing scheme adopting Regulatable reactor in the skylight phase, though the program effectively can reduce active loss, but shortcoming is power factor lower (0.28 ~ 0.3), the reactive power that contact line itself injects to electric power system is comparatively large, can reach 14607kvar/h.
Summary of the invention
The object of this invention is to provide a kind of Highspeed Catenary direct current ice melting method, the feature that this direct current ice melting method is runed for high-speed electric railway special line, and long-time stoppage in transit of contact net for power supplying existence at night causes icing serious, affect the present situation of motor train unit and high ferro operation, propose a kind of Highspeed Catenary direct current ice melting method, solve with minimum power consumption and short time ice-melt the safety hazard that icing brings electric railway, ensure bullet train safety, reliable, running on time.
In order to realize foregoing invention object, the present invention specifically provides a kind of technic relization scheme of Highspeed Catenary direct current ice melting method, a kind of Highspeed Catenary direct current ice melting method, comprising: contact line DC de-icing device drops into process and exits process;
Wherein, contact line DC de-icing device drops into process and comprises: when Highspeed Catenary direct current ice melting system monitors contact line ice coating state, when proposing ice-melt demand, the first feeder switch combined by the long-range disconnection feeder switch in power-management centre, 6th feeder switch, 7th feeder switch, 8th feeder switch, 9th feeder switch, the corresponding contact net switch of the tenth feeder switch and the 11 feeder switch and contact line switches combination, electric substation is switched to contact line DC ice melting running status from traction power supply conventional sense, the DC ice melting fling-cut switch that the DC ice melting fling-cut switch that closed electric substation is relevant to contact line DC ice melting again combines, the corresponding contact net switch of contact line switches combination and the 7th feeder switch of feeder switch combination, 8th feeder switch, 9th feeder switch and the tenth feeder switch, drop into contact line DC de-icing device,
Contact line DC de-icing device exits process and comprises: when contact line DC de-icing device exits, first contact line DC de-icing device is stopped to run, disconnect the DC ice melting fling-cut switch of corresponding DC ice melting fling-cut switch combination again, 7th feeder switch of feeder switch combination, 8th feeder switch, the contact line switches of the 9th feeder switch and the tenth feeder switch and contact line switches combination, thus disconnect the connection of contact line DC de-icing device and electric substation and contact line, and the first feeder switch of closed described feeder switch combination, 6th feeder switch, 7th feeder switch, 8th feeder switch, feedback nine wiretaps, tenth feeder switch and the 11 feeder switch and contact line switches, thus contact line DC ice melting running status is switched to electric locomotive traction power supply state.
As the further improvement of a kind of Highspeed Catenary of the present invention direct current ice melting method technical scheme, contact line DC de-icing device drops into process and comprises the step switching to one direction DC ice melting state from contact line traction power supply state, and this step comprises:
S101: disconnect the first feeder switch, the 6th feeder switch, the 7th feeder switch, the 8th feeder switch, the 9th feeder switch, the tenth feeder switch and the 11 feeder switch;
S102: disconnect the first contact line switches, the second contact line switches, the 3rd contact line switches, the 4th contact line switches and the 7th contact line switches;
S103: the rectifier transformer of interior earth connection to contact line DC de-icing device connecting grounding box in electric substation, closed second DC ice melting fling-cut switch and the 3rd DC ice melting fling-cut switch;
S104: closed 4th DC ice melting fling-cut switch and the 5th DC ice melting fling-cut switch;
S105: closed 7th contact line switches;
S106: closed 7th feeder switch, the 8th feeder switch, the 9th feeder switch and the tenth feeder switch.
As the further improvement of a kind of Highspeed Catenary of the present invention direct current ice melting method technical scheme, contact line DC de-icing device drops into process and comprises the step switching to twocouese DC ice melting state from contact line traction power supply state, and this step comprises:
S201: disconnect the first feeder switch, the 6th feeder switch, the 7th feeder switch, the 8th feeder switch, the 9th feeder switch, the tenth feeder switch, the 11 feeder switch, the 12 feeder switch and the 13 feeder switch;
S202: disconnect the first contact line switches, the second contact line switches, the 3rd contact line switches, the 4th contact line switches, the 5th contact line switches, the 6th contact line switches, the 7th contact line switches and the 8th contact line switches;
S203: the rectifier transformer of interior earth connection to contact line DC de-icing device connecting grounding box in electric substation, closed second DC ice melting fling-cut switch and the 3rd DC ice melting fling-cut switch;
S204: closed 4th DC ice melting fling-cut switch and the 5th DC ice melting fling-cut switch;
S205: closed 3rd contact line switches, the 4th contact line switches, the 7th contact line switches and the 8th contact line switches;
S206: closed 7th feeder switch, the 8th feeder switch, the 9th feeder switch and the tenth feeder switch.
As the further improvement of a kind of Highspeed Catenary of the present invention direct current ice melting method technical scheme, contact line DC de-icing device exits process and comprises the step that contact line one direction DC ice melting state exits, and this step comprises:
S301: disconnect the 7th feeder switch, the 8th feeder switch, the 9th feeder switch and the tenth feeder switch;
S302: disconnect the 7th contact line switches;
S303: disconnect the 4th DC ice melting fling-cut switch and the 5th DC ice melting fling-cut switch;
S304: disconnect the second DC ice melting fling-cut switch and the 3rd DC ice melting fling-cut switch, disconnects the line of the interior earth connection of grounding box and the rectifier transformer of contact line DC de-icing device in electric substation;
S305: closed first contact line switches, the second contact line switches, the 3rd contact line switches and the 4th contact line switches;
S306: closed first feeder switch, the 6th feeder switch, the 7th feeder switch, the 8th feeder switch, feedback nine wiretaps, the tenth feeder switch and the 11 feeder switch.
As the further improvement of a kind of Highspeed Catenary of the present invention direct current ice melting method technical scheme, contact line DC de-icing device exits process and comprises the step that contact line twocouese DC ice melting state exits, and this step comprises:
S401: disconnect the 7th feeder switch, the 8th feeder switch, the 9th feeder switch and the tenth feeder switch;
S402: disconnect the 3rd contact line switches, the 4th contact line switches, the 7th contact line switches and the 8th contact line switches;
S403: disconnect the 4th DC ice melting fling-cut switch and the 5th DC ice melting fling-cut switch;
S404: disconnect the second DC ice melting fling-cut switch and the 3rd DC ice melting fling-cut switch, disconnects the line of the interior earth connection of grounding box and the rectifier transformer of contact line DC de-icing device in electric substation;
S405: closed first contact line switches, the second contact line switches, the 3rd contact line switches, the 4th contact line switches, the 5th contact line switches and the 6th contact line switches;
S406: closed first feeder switch, the 6th feeder switch, the 7th feeder switch, the 8th feeder switch, the 9th feeder switch, the tenth feeder switch, the 11 feeder switch, the 12 feeder switch and the 13 feeder switch.
As the further improvement of a kind of Highspeed Catenary of the present invention direct current ice melting method technical scheme, direct current ice melting method also comprises reactive power compensation process, reactive compensation unit is connected to the output of rectifier transformer, reactive compensation unit carries out reactive power compensation and harmonic wave control to Highspeed Catenary, and reduce the capacity of rectifier transformer, the comprehensive regulation quality of power supply.
As the further improvement of a kind of Highspeed Catenary of the present invention direct current ice melting method technical scheme, direct current ice melting method also comprises and adopts container-type to arrange contact line DC de-icing device, and contact line DC de-icing device is transregional by packaged type, arrange across institute's ice-melting mode or the mode be fixedly installed in electric substation.
As the further improvement of a kind of Highspeed Catenary of the present invention direct current ice melting method technical scheme, direct current ice melting method also comprises: direct current ice melting system receives automatic weather station information and receives the process of contact line temperature monitoring unit information.Automatic weather station gathers weather information by temperature sensor, humidity sensor and air velocity transducer, and be sent to communication processor, communication processor gathers temperature and the video information of contact line simultaneously by video camera and infrared radiation thermometer, the weather information of the temperature of contact line, video information and automatic weather station collection is wirelessly sent to meteorology and contact line information receiving unit by communication processor.By along the line at railway contact line of plural contact line temperature monitoring cell distribution; meteorological and contact line information receiving unit wirelessly receives the information that plural contact line temperature monitoring unit transmits; the state of DC ice melting monitoring and protection unit monitors contact line DC de-icing device, and carry out monitoring and protecting according to the information butt joint net-fault DC de-icing device that meteorological and contact line information receiving unit transmit.
By implementing the technical scheme of a kind of Highspeed Catenary direct current ice melting method of the invention described above, there is following technique effect:
(1) device applied of the present invention can practical function central system, package unit is installed in container, both can realize packaged type transregional, across institute's ice-melt, hyperbaric chamber and the isolation of low voltage control room, Operation and Maintenance safe ready, can be fixedly installed in again in a traction substation, operation, easy to use, saving cost, is also convenient to lifting and moving vehicle is transported to other electric substations needing ice-melt;
(2) the direct current ice melting system AC power applied of the present invention is by drawing the outlet of main transformer secondary side and substation ground case ground wire is formed, and ensures system three phase supply balance, reduces negative phase-sequence impact;
(3) direct current ice melting system applied of the present invention is by contact line device for monitoring temperature, and Real-time Feedback contact line heating-up temperature and ice-melt effect, realize dynamic DC ice melting, and reduces artificial monitoring contact line state;
(4) the present invention proposes a kind of safety, simple, portable direct current ice melting system access electric railway traction power supply plan, only need increase switching device newly at contact line end, get final product the track remodelling of application solutions contact line uplink and downlink series connection;
(5) direct current ice melting system scheme of the present invention newly-increased switching device on feeder line, effectively prevent DC ice melting to current transformer, voltage transformer in existing alternating current traction electric power system, stand with the security implication of power transformer;
(6) device that describes of the present invention can high order harmonic component effectively in filtering direct current ice melting system and carry out reactive power compensation, more traditional de-icing method, has the advantage of efficient ice-melt.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system architecture diagram 1 of a kind of embodiment of Highspeed Catenary DC de-icing device that the present invention applies;
Fig. 2 is the structural principle Fig. 1 of a kind of embodiment of Highspeed Catenary direct current ice melting system that the present invention applies;
Fig. 3 is the structure principle chart of contact line device for detecting temperature in a kind of embodiment of Highspeed Catenary direct current ice melting system of applying of the present invention;
Fig. 4 is the structural principle Fig. 2 of a kind of embodiment of Highspeed Catenary direct current ice melting system that the present invention applies;
Fig. 5 is the system architecture diagram 2 of a kind of embodiment of Highspeed Catenary DC de-icing device that the present invention applies;
Fig. 6 is the system electrical syndeton schematic diagram of a kind of embodiment of Highspeed Catenary DC de-icing device that the present invention applies;
Fig. 7 is the program flow diagram of Highspeed Catenary direct current ice melting method of the present invention;
In figure: 1-contact line DC de-icing device, 11-alternating-current switch unit, 12-rectifier transformer, 13-rectifying device itself and control and protection unit, 14-DC switch unit, 15-reactive compensation unit, 16-feeder switch combines, 17-contact line switches combines, 18-DC ice melting fling-cut switch combines, 19-power-management centre, 21-the 1st contact line temperature monitoring unit, 22-the 2nd contact line temperature monitoring unit, 23-the 3rd contact line temperature monitoring unit, 2n-n-th contact line temperature monitoring unit, 201-communication processor, 202-automatic weather station, 203-wireless transceiver, 204-video camera, 205-infrared radiation thermometer, 206-temperature sensor, 207-humidity sensor, 208-air velocity transducer, 3-first traction transformer, 4-second traction transformer, 5-DC ice melting monitoring and protection unit, 6-meteorology and contact line information receiving unit, 101-first contact line switches, 102-second contact line switches, 103-the 3rd contact line switches, 104-the 4th contact line switches, 105-the 5th contact line switches, 106-the 6th contact line switches, 107-the 7th contact line switches, 108-the 8th contact line switches, 1001-first feeder switch, 1002-second switch, 1003-the 3rd switch, 1004-the 4th switch, 1005-the 5th switch, 1006-the 6th feeder switch, 1007-the 7th feeder switch, 1008-the 8th feeder switch, 1009-the 9th feeder switch, 1010-the tenth feeder switch, 1011-the 11 feeder switch, 1012-the 12 feeder switch, 1013-the 13 feeder switch, 7-uplink, 8-downlink, 9-bus one, 10-bus two.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in accompanying drawing 1 to accompanying drawing 7, give the present invention a kind of specific embodiment of Highspeed Catenary direct current ice melting method, below in conjunction with the drawings and specific embodiments, the invention will be further described.
The embodiment of a kind of Highspeed Catenary DC de-icing device related in the present invention as shown in figure 1, comprise: alternating-current switch unit 11, rectifier transformer 12, rectifier and control and protection unit 13 and DC switch unit 14, two inputs of rectifier transformer 12 are connected with the secondary side outlet of the second traction power supply transformer 4 with the first traction power supply transformer 3 of electric substation respectively by alternating-current switch unit 11, another input of rectifier transformer 12 is connected with the grounding box ground wire of electric substation, the output of rectifier transformer 12 is connected with rectifier and control and protection unit 13, the output of rectifier and control and protection unit 13 is connected with downlink with the uplink of contact line respectively by DC switch unit 14, heating ice-melt is carried out to contact line.The AC power of the contact line DC de-icing device described by the specific embodiment of the invention is made up of the secondary side outlet of traction power supply transformer and the ground wire of substation ground case, ensure that the three phase supply balance of system, effectively reduces the impact of negative phase-sequence.In addition, the present invention adopts the contact line direct current ice melting system of function i ntegration, and contact line DC de-icing device adopts container-type to arrange, both can realize packaged type transregional, across institute's ice-melt, can be fixedly installed in again in traction substation, operation, easy to use, reach cost-effective object.
As one preferably execution mode, contact line DC de-icing device 1 can further include reactive compensation unit 15, reactive compensation unit 15 is connected to the output of rectifier transformer 12, reactive compensation unit 15 for reactive power compensation and harmonic wave control, and has the reduction capacity of rectifier transformer 12 and the function of the comprehensive regulation quality of power supply.Adopt reactive compensation unit 15 can high order harmonic component effectively in filtering direct current ice melting system and carry out reactive power compensation, more traditional de-icing method, there is the advantage of efficient ice-melt.Rectifier transformer 12 adopts △/Y type rectifier transformer further.Highspeed Catenary DC de-icing device adopts built-in reactive compensation unit 15 and adopts the rectifier transformer 12 of △/Y type, effectively improve power factor and administer harmonic wave, when avoiding DC ice melting while reducing rectifier transformer capacity, power factor reduces and harmonic wave increase.The power supply of Highspeed Catenary direct current ice melting system provides three phase mains by the traction transformer secondary side outlet of electric substation and the ground wire of grounding box to rectifier transformer 12, export through DC de-icing device direct current the upper and lower line that direct current accesses contact line respectively, thus form the DC ice melting loop be made up of feeder line, DC de-icing device and contact line.The direct current ice melting system that the present invention applies has good constant-current characteristics, output current continuously adjustabe, guarantees to export DC stabilization also contacts net, realizes dissimilar contact line ice-melt fast.
As accompanying drawing 1 and 6 be depicted as the present invention respectively shown in a kind of system architecture diagram of Highspeed Catenary DC de-icing device applied and system electrical johning knot composition, the T feeder line of the first traction power supply transformer 3 in traction substation, the T feeder line of the second traction power supply transformer form three-phase incoming power through alternating-current switch unit 11 and the ground wire of substation ground case, are depressurized to U by adopting the rectifier transformer 12 of △/Y type connected mode
aCas the input of rectifier and control and protection unit 13; again by the three-phase controlled bridge rectifier that is made up of semiconductor device (as rectifier diode, thyristor, IGBT, IGCT etc.) and control and protection unit 13, export continuously adjustable direct current is connected to contact line upper and lower line by DC switch unit 14.Wherein, the first traction power supply transformer 3 as shown in Figure 6 and the second traction power supply transformer 4 include the sub-traction transformer of two redundancy backups each other, when electrification railway contact net direct current ice melting system runs, the first traction power supply transformer 3 and the second traction power supply transformer 4 all only have an estrade traction transformer to run.
Be respectively as shown in accompanying drawing 2 and 4 the present invention shown in a kind of structure principle chart of embodiment of Highspeed Catenary direct current ice melting system applied, contact line direct current ice melting system also comprises DC ice melting monitoring and protection unit 5 further, meteorological and contact line information receiving unit 6 and plural contact line temperature monitoring unit, along the line at railway contact line of plural contact line temperature monitoring cell distribution, DC ice melting monitoring and protection unit 5 is connected with contact line DC de-icing device 1, meteorological and contact line information receiving unit 6 is connected with DC ice melting monitoring and protection unit 5, meteorological and contact line information receiving unit 6 wirelessly receives the information that plural contact line temperature monitoring unit transmits, DC ice melting monitoring and protection unit 5 monitors the state of contact line DC de-icing device 1, and carry out monitoring and protecting according to the information butt joint net-fault DC de-icing device 1 that meteorological and contact line information receiving unit 6 transmit.The DC ice melting monitoring and protection unit 5 of the contact line direct current ice melting system that the present invention applies is by contact line temperature monitoring unit, and Real-time Feedback contact line heating-up temperature and ice-melt effect, realize dynamic DC ice melting, and reduces artificial monitoring contact line state.
As shown in Figure 3, contact line temperature monitoring unit also comprises communication processor 201 further, automatic weather station 202, video camera 204, infrared radiation thermometer 205, temperature sensor 206, humidity sensor 207 and air velocity transducer 208, communication processor 201 respectively with automatic weather station 202, video camera 204 is connected with infrared radiation thermometer 205, automatic weather station 202 respectively with temperature sensor 206, humidity sensor 207 is connected with air velocity transducer 208, automatic weather station 202 is by temperature sensor 206, humidity sensor 207 and air velocity transducer 208 gather weather information, and be sent to communication processor 201, communication processor 201 gathers temperature and the video information of contact line simultaneously by video camera 204 and infrared radiation thermometer 205, communication processor 201 is by the temperature of contact line, the weather information that video information and automatic weather station 202 gather wirelessly is sent to meteorology and contact line information receiving unit 6 by wireless transceiver 203.The present invention need along trunk railway dispersing apparatus some contact line temperature monitorings unit; as: the first contact line temperature monitoring unit 21, second contact line temperature monitoring unit 22; until the n-th contact line temperature monitoring unit 2n, and adopt station, wireless transmitter station trunking scheme that the state of each detection website and signal are sent to DC ice melting monitoring and protection unit 5.By Real-Time Monitoring and feedback contact line ice-melt state, DC ice melting monitoring and protection unit 5 sends alarm ice-melt demand information according to meteorology and controls ice-melt operating state.As shown in Figure 5; DC ice melting monitoring and protection unit 5 is except being connected with the rectifier and control and protection unit 13 of contact line DC de-icing device 1; also be connected with reactive compensation unit 15 etc. with alternating-current switch unit 11, DC switch unit 14, for key position each in contact line DC de-icing device 1 provides monitoring and protection.
The embodiment of a kind of Highspeed Catenary direct current ice melting system access scheme applied for the present invention as shown in Figure 6.Contact line direct current ice melting system, except comprising contact line DC de-icing device 1, also comprises feeder switch combination 16, contact line switches combination 17 and DC ice melting fling-cut switch combination 18 further.DC ice melting fling-cut switch combination 18 comprises the second DC ice melting fling-cut switch 1002, the 3rd DC ice melting fling-cut switch 1003, the 4th DC ice melting fling-cut switch 1004 and the 5th DC ice melting fling-cut switch 1005 further, feeder switch combination 16 is connected between traction power supply bus and contact line, and traction power supply bus comprises bus 1 and bus 2 10.Second DC ice melting fling-cut switch 1002 and the 3rd DC ice melting fling-cut switch 1003 are connected to the input of contact line DC de-icing device 1 and feeder switch combines between 16; 4th DC ice melting fling-cut switch 1004 and the 5th DC ice melting fling-cut switch 1005 are connected to the output of contact line DC de-icing device 1 and feeder switch combines between 16; Contact line switches combination 17 is connected with contact line.Contact line direct current ice melting system, only need increase switching device newly at the end of contact line, can the track remodelling of application solutions contact line uplink and downlink series connection, and propose the technical scheme of a kind of safe, simple, portable direct current ice melting system access electric railway traction power supply system.Meanwhile, contact line direct current ice melting system has increased switching device newly on feeder line, effectively prevent DC ice melting to current transformer, voltage transformer in existing alternating current traction electric power system, stand with the security implication of power transformer.
Feeder switch combination 16 also comprises the first feeder switch 1001, the 6th feeder switch 1006, the 7th feeder switch 1007, the 8th feeder switch 1008, the 9th feeder switch 1009, the tenth feeder switch the 1010, the 11 feeder switch the 1011, the 12 feeder switch the 1012 and the 13 feeder switch 1013 further.6th feeder switch 1006 is connected between bus 1 and the 7th feeder switch 1007, and the other end of the 7th feeder switch 1007 is connected with the uplink 7 of contact line; Described 8th feeder switch 1008 is connected between bus 1 and the first feeder switch 1001, and the other end of the first feeder switch 1001 is connected with the 9th feeder switch 1009, and the other end of the 9th feeder switch 1009 is connected with the downlink 8 of contact line; Tenth feeder switch 1010 is connected between bus the 2 10 and the 11 feeder switch 1011, and the other end of the 11 feeder switch 1011 is connected with the downlink 8 of contact line; 12 feeder switch 1012 is connected between bus the 2 10 and the 13 feeder switch 1013, and the other end of the 13 feeder switch 1013 is connected with the uplink 7 of contact line.
Contact line switches combination 17 also comprises the first contact line switches 101, second contact line switches 102, the 3rd contact line switches 103, the 4th contact line switches 104, the 5th contact line switches 105, the 6th contact line switches 106, the 7th contact line switches 107 and the 8th contact line switches 108 further.Between the F feeder line that first contact line switches 101, the 3rd contact line switches 103 and the 5th contact line switches 105 are connected to the uplink 7 of contact line and T feeder line; Between the F feeder line that second contact line switches 102, the 4th contact line switches 104 and the 6th contact line switches 106 are connected to the downlink 8 of contact line and T feeder line; 7th contact line switches 107 and the 8th contact line switches 108 are connected between the uplink 7 of contact line and the T feeder line of downlink 8.
Second DC ice melting fling-cut switch 1002 be connected to further be connected between the 8th feeder switch 1008, first feeder switch 1001 and with the T1 feeder line of bus 1 between power supply leading point A1 and an input of contact line DC de-icing device 1; 3rd DC ice melting fling-cut switch 1003 to be connected between the tenth feeder switch the 1010, the 11 feeder switch 1011 and between the power supply leading point A2 be connected with the T2 feeder line of bus 2 10 and another input of contact line DC de-icing device 1; The 4th described DC ice melting fling-cut switch 1004 be connected to be connected between the 6th feeder switch 1006, the 7th feeder switch 1007 and with the T1 feeder line of bus 1 between ice-melt access point B1 and the output Ud+ of contact line DC de-icing device 1; The 5th described DC ice melting fling-cut switch 1005 be connected to be connected between the 9th feeder switch 1009, first feeder switch 1001 and with the T1 feeder line of bus 1 between ice-melt access point B2 and the output Ud-of contact line DC de-icing device 1.
Which is specifically fixed on traction substation with contact line DC de-icing device 1, traction power supply transformer is for autotransformer (AT) supply power mode, the leading point A1 of T1 supply arm power source, in T2 supply arm power source leading point A2 and traction substation, earth connection forms the three-phase incoming power of rectifier transformer 12, output dc voltage Ud+ and Ud-of contact line DC de-icing device 1 accesses ice-melt access point B1 place and the ice-melt access point B2 place of supply arm T1 respectively, point B3 on this ice-melt access point and contact line and some B4, point B5 and some B6 all forms ice-melt loop.The rectifier transformer 12 of DC de-icing device can introduce the various main transformer power-supplying forms being adapted to electric railway, as: the modes of connection such as Y/ △, V/V, SCOTT (Scott), and according to draught line length, certain interval or transregional DC ice melting can be realized.
The embodiment of a kind of Highspeed Catenary direct current ice melting method as shown in Figure 7, contact line direct current ice melting method comprises: contact line DC de-icing device drops into process and exits process.Contact line DC de-icing device drops into process and comprises:
When Highspeed Catenary direct current ice melting system monitors contact line ice coating state, when proposing ice-melt demand, the respective feed connection switch of 16 and the corresponding contact net switch of contact line switches combination 17 is combined by the long-range disconnection feeder switch in power-management centre 19, electric substation is switched to contact line DC ice melting running status from traction power supply conventional sense, the DC ice melting fling-cut switch that closed electric substation is relevant to contact line DC ice melting again combines the DC ice melting fling-cut switch of 18, the corresponding contact net switch of contact line switches combination 17 and the respective feed connection switch of feeder switch combination 16, drop into contact line DC de-icing device 1.In accompanying drawing 6, power-management centre 19 can Long-distance Control feeder switch combination 16, contact line switches combination 17 and DC ice melting fling-cut switch combination 18 in various switches.It is as described below that it specifically drops into step:
Contact line DC de-icing device drops into process and comprises the step switching to one direction DC ice melting state from contact line traction power supply state, and this step comprises:
S101: disconnect the first feeder switch 1001, the 6th feeder switch 1006, the 7th feeder switch 1007, the 8th feeder switch 1008, the 9th feeder switch 1009, the tenth feeder switch the 1010 and the 11 feeder switch 1011;
S102: disconnect the first contact line switches 101, second contact line switches 102, the 3rd contact line switches 103, the 4th contact line switches 104 and the 7th contact line switches 107;
S103: the rectifier transformer 12 of interior earth connection to contact line DC de-icing device 1 connecting grounding box in electric substation, closed second DC ice melting fling-cut switch 1002 and the 3rd DC ice melting fling-cut switch 1003;
S104: closed 4th DC ice melting fling-cut switch 1004 and the 5th DC ice melting fling-cut switch 1005;
S105: closed 7th contact line switches 107;
S106: closed 7th feeder switch 1007, the 8th feeder switch 1008, the 9th feeder switch 1009 and the tenth feeder switch 1010.
Contact line DC de-icing device drops into process and comprises the step switching to twocouese DC ice melting state from contact line traction power supply state further, and this step comprises:
S201: disconnect the first feeder switch 1001, the 6th feeder switch 1006, the 7th feeder switch 1007, the 8th feeder switch 1008, the 9th feeder switch 1009, the tenth feeder switch the 1010, the 11 feeder switch the 1011, the 12 feeder switch the 1012 and the 13 feeder switch 1013;
S202: disconnect the first contact line switches 101, second contact line switches 102, the 3rd contact line switches 103, the 4th contact line switches 104, the 5th contact line switches 105, the 6th contact line switches 106, the 7th contact line switches 107 and the 8th contact line switches 108;
S203: the rectifier transformer 12 of interior earth connection to contact line DC de-icing device 1 connecting grounding box in electric substation, closed second DC ice melting fling-cut switch 1002 and the 3rd DC ice melting fling-cut switch 1003;
S204: closed 4th DC ice melting fling-cut switch 1004 and the 5th DC ice melting fling-cut switch 1005;
S205: closed 3rd contact line switches 103, the 4th contact line switches 104, the 7th contact line switches 107 and the 8th contact line switches 108;
S206: closed 7th feeder switch 1007, the 8th feeder switch 1008, the 9th feeder switch 1009 and the tenth feeder switch 1010.
Contact line DC de-icing device exits process and comprises: when contact line DC de-icing device exits, first contact line DC de-icing device is stopped to run, disconnect the DC ice melting fling-cut switch of corresponding DC ice melting fling-cut switch combination 18, the feeder switch of feeder switch combination 16 and the contact line switches of contact line switches combination 17 again, thus disconnect the connection of contact line DC de-icing device and electric substation and contact line, and closed corresponding feeder switch and contact line switches, thus contact line DC ice melting running status is switched to electric locomotive traction power supply state.Its exit step specific as follows described in:
Contact line DC de-icing device exits process and comprises the step that contact line one direction DC ice melting state exits further, and this step comprises:
S301: disconnect the 7th feeder switch 1007, the 8th feeder switch 1008, the 9th feeder switch 1009 and the tenth feeder switch 1010;
S302: disconnect the 7th contact line switches 107;
S303: disconnect the 4th DC ice melting fling-cut switch 1004 and the 5th DC ice melting fling-cut switch 1005;
S304: disconnect the second DC ice melting fling-cut switch 1002 and the 3rd DC ice melting fling-cut switch 1003, disconnects the line of the interior earth connection of grounding box and the rectifier transformer 12 of contact line DC de-icing device 1 in electric substation;
S305: closed first contact line switches 1010, second contact line switches 102, the 3rd contact line switches 103 and the 4th contact line switches 104;
S306: closed first feeder switch 1001, the 6th feeder switch 1006, the 7th feeder switch 1007, the 8th feeder switch 1008, feedback nine wiretaps 1009, the tenth feeder switch the 1010 and the 11 feeder switch 1011.
Contact line DC de-icing device exits process and comprises the step that contact line twocouese DC ice melting state exits further, and this step comprises:
S401: disconnect the 7th feeder switch 1007, the 8th feeder switch 1008, the 9th feeder switch 1009 and the tenth feeder switch 1010;
S402: disconnect the 3rd contact line switches 103, the 4th contact line switches 104, the 7th contact line switches 107 and the 8th contact line switches 108;
S403: disconnect the 4th DC ice melting fling-cut switch 1004 and the 5th DC ice melting fling-cut switch 1005;
S404: disconnect the second DC ice melting fling-cut switch 1002 and the 3rd DC ice melting fling-cut switch 1003, disconnects the line of the interior earth connection of grounding box and the rectifier transformer 12 of contact line DC de-icing device 1 in electric substation;
S405: closed first contact line switches 101, second contact line switches 102, the 3rd contact line switches 103, the 4th contact line switches 104, the 5th contact line switches 105 and the 6th contact line switches 106;
S406: closed first feeder switch 1001, the 6th feeder switch 1006, the 7th feeder switch 1007, the 8th feeder switch 1008, the 9th feeder switch 1009, the tenth feeder switch the 1010, the 11 feeder switch the 1011, the 12 feeder switch the 1012 and the 13 feeder switch 1013.
Direct current ice melting method also comprises reactive power compensation process further, reactive compensation unit 15 is connected to the output of rectifier transformer 12, reactive compensation unit 15 pairs of Highspeed Catenaries carry out reactive power compensation and harmonic wave control, and reduce the capacity of rectifier transformer 11, the comprehensive regulation quality of power supply.
Direct current ice melting method also comprises further and adopts container-type to arrange contact line DC de-icing device 1, and contact line DC de-icing device 1 is transregional by packaged type, arrange across institute's ice-melting mode or the mode be fixedly installed in electric substation.
Direct current ice melting method also comprises further: direct current ice melting system receives automatic weather station information and receives the process of contact line temperature monitoring unit information.Automatic weather station 202 gathers weather information by temperature sensor 206, humidity sensor 207 and air velocity transducer 208, and be sent to communication processor 201, communication processor 201 gathers temperature and the video information of contact line simultaneously by video camera 204 and infrared radiation thermometer 205, the weather information that the temperature of contact line, video information and automatic weather station 202 gathers by communication processor 201 is wirelessly sent to meteorology and contact line information receiving unit 6; By along the line at railway contact line of plural contact line temperature monitoring cell distribution; meteorological and contact line information receiving unit 6 wirelessly receives the information that plural contact line temperature monitoring unit transmits; DC ice melting monitoring and protection unit 5 monitors the state of contact line DC de-icing device 1, and carries out monitoring and protecting according to the information butt joint net-fault DC de-icing device 1 that meteorological and contact line information receiving unit 6 transmit.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a Highspeed Catenary direct current ice melting method, is characterized in that, described direct current ice melting method comprises contact line DC de-icing device and drops into process and exit process;
Described contact line DC de-icing device drops into process and comprises: when Highspeed Catenary direct current ice melting system monitors contact line ice coating state, when proposing ice-melt demand, first feeder switch (1001) of (16) is combined by power-management centre (19) long-range disconnection feeder switch, 6th feeder switch (1006), 7th feeder switch (1007), 8th feeder switch (1008), 9th feeder switch (1009), the corresponding contact net switch of the tenth feeder switch (1010) and the 11 feeder switch (1011) and contact line switches combination (17), electric substation is switched to contact line DC ice melting running status from traction power supply conventional sense, the DC ice melting fling-cut switch that closed electric substation is relevant to contact line DC ice melting again combines the DC ice melting fling-cut switch of (18), 7th feeder switch (1007) of the corresponding contact net switch of contact line switches combination (17) and feeder switch combination (16), 8th feeder switch (1008), 9th feeder switch (1009) and the tenth feeder switch (1010), drop into contact line DC de-icing device,
Described contact line DC de-icing device exits process and comprises: when contact line DC de-icing device (1) exits, first contact line DC de-icing device (1) is stopped to run, disconnect the DC ice melting fling-cut switch of corresponding DC ice melting fling-cut switch combination (18) again, 7th feeder switch (1007) of feeder switch combination (16), 8th feeder switch (1008), the contact line switches of the 9th feeder switch (1009) and the tenth feeder switch (1010) and contact line switches combination (17), thus disconnect the connection of contact line DC de-icing device and electric substation and contact line, and first feeder switch (1001) of closed described feeder switch combination (16), 6th feeder switch (1006), 7th feeder switch (1007), 8th feeder switch (1008), 9th feeder switch (1009), tenth feeder switch (1010) and the 11 feeder switch (1011) and contact line switches, thus contact line DC ice melting running status is switched to electric locomotive traction power supply state.
2. a kind of Highspeed Catenary direct current ice melting method according to claim 1, it is characterized in that, described contact line DC de-icing device drops into process and comprises the step switching to one direction DC ice melting state from contact line traction power supply state, and this step comprises:
S101: disconnect first feeder switch (1001) of described feeder switch combination (16), the 6th feeder switch (1006), the 7th feeder switch (1007), the 8th feeder switch (1008), the 9th feeder switch (1009), the tenth feeder switch (1010) and the 11 feeder switch (1011);
S102: disconnect the first contact line switches (101), the second contact line switches (102), the 3rd contact line switches (103), the 4th contact line switches (104) and the 7th contact line switches (107);
S103: the rectifier transformer (12) of interior earth connection to contact line DC de-icing device (1) connecting grounding box in electric substation, closed second DC ice melting fling-cut switch (1002) and the 3rd DC ice melting fling-cut switch (1003);
S104: closed 4th DC ice melting fling-cut switch (1004) and the 5th DC ice melting fling-cut switch (1005);
S105: closed 7th contact line switches (107);
S106: closed 7th feeder switch (1007), the 8th feeder switch (1008), the 9th feeder switch (1009) and the tenth feeder switch (1010).
3. a kind of Highspeed Catenary direct current ice melting method according to claim 1, it is characterized in that, described contact line DC de-icing device drops into process and comprises the step switching to twocouese DC ice melting state from contact line traction power supply state, and this step comprises:
S201: disconnect first feeder switch (1001) of described feeder switch combination (16), the 6th feeder switch (1006), the 7th feeder switch (1007), the 8th feeder switch (1008), the 9th feeder switch (1009), the tenth feeder switch (1010), the 11 feeder switch (1011), the 12 feeder switch (1012) and the 13 feeder switch (1013);
S202: disconnect the first contact line switches (101), the second contact line switches (102), the 3rd contact line switches (103), the 4th contact line switches (104), the 5th contact line switches (105), the 6th contact line switches (106), the 7th contact line switches (107) and the 8th contact line switches (108);
S203: the rectifier transformer (12) of interior earth connection to contact line DC de-icing device (1) connecting grounding box in electric substation, closed second DC ice melting fling-cut switch (1002) and the 3rd DC ice melting fling-cut switch (1003);
S204: closed 4th DC ice melting fling-cut switch (1004) and the 5th DC ice melting fling-cut switch (1005);
S205: closed 3rd contact line switches (103), the 4th contact line switches (104), the 7th contact line switches (107) and the 8th contact line switches (108);
S206: closed 7th feeder switch (1007), the 8th feeder switch (1008), the 9th feeder switch (1009) and the tenth feeder switch (1010).
4. a kind of Highspeed Catenary direct current ice melting method according to claim 2, is characterized in that, described contact line DC de-icing device exits process and comprises the step that contact line one direction DC ice melting state exits, and this step comprises:
S301: disconnect the 7th feeder switch (1007) of described feeder switch combination (16), the 8th feeder switch (1008), the 9th feeder switch (1009) and the tenth feeder switch (1010);
S302: disconnect the 7th contact line switches (107);
S303: disconnect the 4th DC ice melting fling-cut switch (1004) and the 5th DC ice melting fling-cut switch (1005);
S304: disconnect the second DC ice melting fling-cut switch (1002) and the 3rd DC ice melting fling-cut switch (1003), disconnects the line of the interior earth connection of grounding box and the rectifier transformer (12) of contact line DC de-icing device (1) in electric substation;
S305: closed first contact line switches (1010), the second contact line switches (102), the 3rd contact line switches (103) and the 4th contact line switches (104);
S306: close first feeder switch (1001) of described feeder switch combination (16), the 6th feeder switch (1006), the 7th feeder switch (1007), the 8th feeder switch (1008), the 9th feeder switch (1009), the tenth feeder switch (1010) and the 11 feeder switch (1011).
5. a kind of Highspeed Catenary direct current ice melting method according to claim 3, is characterized in that, described contact line DC de-icing device exits process and comprises the step that contact line twocouese DC ice melting state exits, and this step comprises:
S401: disconnect the 7th feeder switch (1007) of described feeder switch combination (16), the 8th feeder switch (1008), the 9th feeder switch (1009) and the tenth feeder switch (1010);
S402: disconnect the 3rd contact line switches (103), the 4th contact line switches (104), the 7th contact line switches (107) and the 8th contact line switches (108);
S403: disconnect the 4th DC ice melting fling-cut switch (1004) and the 5th DC ice melting fling-cut switch (1005);
S404: disconnect the second DC ice melting fling-cut switch (1002) and the 3rd DC ice melting fling-cut switch (1003), disconnects the line of the interior earth connection of grounding box and the rectifier transformer (12) of contact line DC de-icing device (1) in electric substation;
S405: closed first contact line switches (101), the second contact line switches (102), the 3rd contact line switches (103), the 4th contact line switches (104), the 5th contact line switches (105) and the 6th contact line switches (106);
S406: close first feeder switch (1001) of described feeder switch combination (16), the 6th feeder switch (1006), the 7th feeder switch (1007), the 8th feeder switch (1008), the 9th feeder switch (1009), the tenth feeder switch (1010), the 11 feeder switch (1011), the 12 feeder switch (1012) and the 13 feeder switch (1013).
6. according to a kind of Highspeed Catenary direct current ice melting method in claim 1,2,4,5 described in arbitrary claim, it is characterized in that, described direct current ice melting method also comprises reactive power compensation process, reactive compensation unit (15) is connected to the output of rectifier transformer (12), reactive compensation unit (15) carries out reactive power compensation and harmonic wave control to Highspeed Catenary, and reduce the capacity of rectifier transformer (11), the comprehensive regulation quality of power supply.
7. a kind of Highspeed Catenary direct current ice melting method according to claim 6, it is characterized in that, described direct current ice melting method also comprises and adopts container-type to arrange contact line DC de-icing device (1), and contact line DC de-icing device (1) is transregional by packaged type, arrange across institute's ice-melting mode or the mode be fixedly installed in electric substation.
8. a kind of Highspeed Catenary direct current ice melting method according to claim 7, it is characterized in that, described direct current ice melting method also comprises: direct current ice melting system receives automatic weather station information and receives the process of contact line temperature monitoring unit information;
Described automatic weather station (202) is by temperature sensor (206), humidity sensor (207) and air velocity transducer (208) gather weather information, and be sent to communication processor (201), communication processor (201) gathers temperature and the video information of contact line simultaneously by video camera (204) and infrared radiation thermometer (205), communication processor (201) is by the temperature of contact line, the weather information that video information and automatic weather station (202) gather wirelessly is sent to meteorology and contact line information receiving unit (6),
By along the line at railway contact line of plural contact line temperature monitoring cell distribution; meteorological and contact line information receiving unit (6) wirelessly receives the information that plural contact line temperature monitoring unit transmits; the state of DC ice melting monitoring and protection unit (5) monitoring contact line DC de-icing device (1), and carry out monitoring and protecting according to the information butt joint net-fault DC de-icing device (1) that meteorological and contact line information receiving unit (6) transmit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210101221.9A CN102638019B (en) | 2012-04-09 | 2012-04-09 | Direct-current catenary de-icing method of high-speed electrified railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210101221.9A CN102638019B (en) | 2012-04-09 | 2012-04-09 | Direct-current catenary de-icing method of high-speed electrified railway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102638019A CN102638019A (en) | 2012-08-15 |
| CN102638019B true CN102638019B (en) | 2015-02-25 |
Family
ID=46622315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210101221.9A Active CN102638019B (en) | 2012-04-09 | 2012-04-09 | Direct-current catenary de-icing method of high-speed electrified railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102638019B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247991B (en) * | 2013-04-22 | 2015-09-30 | 铁道第三勘察设计院集团有限公司 | A kind of contact nets in electrified railways utilize phase fault to realize anti-icing de-icing method |
| CN103345280A (en) * | 2013-07-18 | 2013-10-09 | 国家电网公司 | Internal temperature monitoring system of de-icing 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 |
| CN105466565B (en) * | 2014-09-29 | 2018-08-10 | 株洲变流技术国家工程研究中心有限公司 | A kind of high iron catenary DC ice melting load temperature monitoring system |
| CN106304436B (en) * | 2016-09-30 | 2022-11-25 | 四川大学 | Ice melting equipment for self-melting ice conductor |
| CN108790949A (en) * | 2017-05-05 | 2018-11-13 | 天津中铁电气化设计研究院有限公司 | A kind of electrical design method for preventing direct current overhead contact line from freezing |
| CN111697598B (en) * | 2020-05-19 | 2021-12-17 | 国网湖南省电力有限公司 | Mode switching system and mode switching method for electrified railway |
| CN113612154B (en) * | 2021-05-27 | 2023-10-20 | 国网浙江省电力有限公司台州供电公司 | Digital icing and deicing overall process monitoring system |
| CN114530814B (en) * | 2022-04-15 | 2022-09-30 | 西南交通大学 | Direct-current deicing system for overhead contact system of electrified railway and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009017717A1 (en) * | 2008-04-22 | 2009-10-29 | European Trans Energy Gmbh | Overhead line installation method for electrical traction of rail-guided vehicle, involves determining forces exerted on masts of arms, carrying ropes, trailers and overhead lines, determining position of masts, and setting masts |
| CN101640400A (en) * | 2009-07-23 | 2010-02-03 | 中铁第一勘察设计院集团有限公司 | Ice melting method for overhead contact system of electrified railway and ice melting system thereof |
| CN201961173U (en) * | 2011-01-31 | 2011-09-07 | 株洲变流技术国家工程研究中心有限公司 | Online anti-icing system of rail traction power supply contact net |
| CN202029706U (en) * | 2011-03-11 | 2011-11-09 | 四川汇友电气有限公司 | Anti-freezing system for contact network |
| CN202094584U (en) * | 2011-04-28 | 2011-12-28 | 株洲变流技术国家工程研究中心有限公司 | Ice melting system for overhead contact line of electrified railway |
-
2012
- 2012-04-09 CN CN201210101221.9A patent/CN102638019B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009017717A1 (en) * | 2008-04-22 | 2009-10-29 | European Trans Energy Gmbh | Overhead line installation method for electrical traction of rail-guided vehicle, involves determining forces exerted on masts of arms, carrying ropes, trailers and overhead lines, determining position of masts, and setting masts |
| CN101640400A (en) * | 2009-07-23 | 2010-02-03 | 中铁第一勘察设计院集团有限公司 | Ice melting method for overhead contact system of electrified railway and ice melting system thereof |
| CN201961173U (en) * | 2011-01-31 | 2011-09-07 | 株洲变流技术国家工程研究中心有限公司 | Online anti-icing system of rail traction power supply contact net |
| CN202029706U (en) * | 2011-03-11 | 2011-11-09 | 四川汇友电气有限公司 | Anti-freezing system for contact network |
| CN202094584U (en) * | 2011-04-28 | 2011-12-28 | 株洲变流技术国家工程研究中心有限公司 | Ice melting system for overhead contact line of electrified railway |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102638019A (en) | 2012-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102638019B (en) | Direct-current catenary de-icing method of high-speed electrified railway | |
| CN103950394B (en) | Alternating current and direct current mixed traction power supply system with ice melting function | |
| CN102882440B (en) | A kind of high-power braking energy consumer and control method thereof | |
| CN105730248B (en) | A kind of locomotive regenerative electric energy feedback system and control method for having ice-melt function concurrently | |
| WO2015192645A1 (en) | Electric railway coaxial cable power supply system | |
| CN105128704B (en) | A kind of intelligent automatic neutral-section passing system | |
| CN105034854B (en) | Deicing device | |
| CN101242087A (en) | Ice fusion method for power transmission line | |
| CN110205972B (en) | Rail transit deicing snow melt system | |
| CN104875630B (en) | Power consumption control method for double-source trolleybus | |
| CN102195260A (en) | Power-frequency online anti-icing de-icing method for electrified railway contact network | |
| CN102638020B (en) | Direct-current electrical railway catenary de-icing equipment of high-speed electrified railway and direct-current catenary de-icing system | |
| CN102616152A (en) | Online anti-icing system and method of rail traction power supply contact net | |
| CN103241138B (en) | Low-frequency traction power supply system | |
| CN112260199A (en) | Online ice melting system and method for rail transit alternating current | |
| CN202094584U (en) | Ice melting system for overhead contact line of electrified railway | |
| CN201961173U (en) | Online anti-icing system of rail traction power supply contact net | |
| CN202471869U (en) | Online monitoring system for performance of catenary lightning arrester | |
| CN102756672A (en) | Ice melting system for overhead contact system of electric railway | |
| CN103247991B (en) | A kind of contact nets in electrified railways utilize phase fault to realize anti-icing de-icing method | |
| CN206250597U (en) | One kind charging online stacked switch cabinet device | |
| CN206678832U (en) | A kind of electric railway subregion connects powered construction | |
| CN205686215U (en) | A kind of non-shut-brake neutral-section passing system of EMUs | |
| CN105207159B (en) | Electric railway vehicular contact net exchanges anti-deicing device | |
| CN202029706U (en) | Anti-freezing system for contact network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |