CN101503065B - Non phase separation type traction power supply equipment for railway locomotive - Google Patents
Non phase separation type traction power supply equipment for railway locomotive Download PDFInfo
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- CN101503065B CN101503065B CN2009100584064A CN200910058406A CN101503065B CN 101503065 B CN101503065 B CN 101503065B CN 2009100584064 A CN2009100584064 A CN 2009100584064A CN 200910058406 A CN200910058406 A CN 200910058406A CN 101503065 B CN101503065 B CN 101503065B
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- 230000003137 locomotive effect Effects 0.000 title claims description 16
- 238000005191 phase separation Methods 0.000 title claims description 7
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- 208000033999 Device damage Diseases 0.000 description 1
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Abstract
A non-split-phase type traction power supply device used for rail vehicles belongs to technical field of railway electric traction power supply. The device comprises a traction transformator and an energy distribution regulating machine which mainly consists of a main controller, a driver, an electronic power switch bridgearm, a support capacitance arm, three electric current sensors, three voltage transducers and three reactors, wherein, the driver is connected between a control terminal of the electronic power switch bridgearm and the main controller, the electric current sensors and the voltage transducers are respectively connected between the main controller and A phase, B phase and C phase of an output end of the traction transformator, and the reactors are connected between the center of the bridgearm and the A phase, the B phase and the C phase of an output end of the traction transformator. The invention has the advantages that split-phase power supply is changed into non-split-phase power supply, great run-through of the traction contact network can be realized, and power phase position exchange for power supply again caused by frequent power failure can be avoided, so that safe, high speed and high-efficiency running of train can be guaranteed.
Description
Technical field
The present invention relates to a kind of railway locomotive traction power set.Belong to Railway Electric traction power supply technical field.
Background technology
Well-known power plant provides three-phase alternating current, and electric railway traction power supply system all adopts the two-phase power supply for reducing cost, for make three-phase equilibrium then adopt segmentation not the homophase supply power mode be that phase-splitting is powered.The supply power mode of the railroad traction system overwhelming majority adopts YNd11 supply power mode and the improved procedure on its basis (Scott) both at home and abroad, overall all belongs to out-phase power supply (phase-splitting power supply) mode.(in " high-speed railway electrification engineering " book of publishing referring to publishing house of Southwest Jiaotong University p.126-131 and in " tractive power supply system analysis " book p.10-15).This phase-splitting supply power mode will the outage of ascending, descending pantograph once exchange power phase every 20 to 30 kilometers locomotives, re-power work.This mode is many because of the quantity of electric phase-splitting point and electric segments, make the contact line of traction power supply be divided into multistage, it is big to cause drawing impedance, spacing is little between traction substation, pantograph ascending, descending (make and break) operation is frequent, and the startup of frequently cutting off the power supply can cause impulse current to reach five to seven times, sometimes impulse current even can be up to more than ten times, the easy like this device damage that causes also influences the raising of locomotive running speed.Reduced the locomotive reliability operation, this in addition out-phase supply power mode can not be powered in three-phase equilibrium, its negative-sequence current value and mains by harmonics contain all bigger, though adopted certain indemnifying measure, but energy utilization rate is still lower, with train safe, heavy duty, at a high speed, developing goal is seriously to conflict efficiently.
Summary of the invention
The objective of the invention is to overcome the above-mentioned shortcoming of the out-phase supply power mode that has electric railway now, for railway locomotive provides the non phase separation type traction power supply equipment that a kind of mains by harmonics content is little, fail safe is higher.
The no phase-splitting traction power set that the railway locomotive of realization the object of the invention is used is regulated machine by traction transformer and energy distribution and is constituted, the A of the described traction transformer output traction contact line that joins, the C rail that joins, the B energy distribution of joining is regulated machine, described energy distribution is regulated machine by master controller, driver, the electronic power switch brachium pontis, support the electric capacity arm, three current sensors, three voltage sensors, three reactors are formed, wherein, described electronic power switch brachium pontis is connected in parallel with support electric capacity arm, described driver is connected between the control terminal and master controller of electronic power switch brachium pontis, the signal output part of three current sensors and three voltage sensors connects master controller, signal input part respectively with the A of the output of traction transformer mutually, the B phase, C is connected, described electronic power switch brachium pontis is made up of three groups of electronic power switches, and an end of three reactors is connected to the mid point U of three groups of corresponding brachium pontis separately, V, on the W, the other end respectively with the A of traction transformer output mutually, the B phase, C links.
The externally fed net that traction transformer input termination power plant provides during use, the B of traction transformer then only is connected with energy distribution adjusting machine mutually, no longer connects the traction contact line as originally.Be that traction transformer is only drawn two traction net power supplies in opposite directions.The two-phase circuit that the three phase mains energy mean allocation that during work of this non phase separation type traction power supply equipment electrical network is provided is drawn to traction transformer, by A phase, C mutually directly to locomotive power supply, B phase energy then becomes direct current another mistake earlier and becomes to exchange to join and supply with A phase, C phase, three-phase is transformed into two-phase, thereby has realized no phase-splitting balanced feeding.The phase angle of electric current and voltage when this device is by the adjusting inversion simultaneously, can compensate the line power factor, and having improved the stability of traction net voltage, tractive effort can improve 20～50% under the constant situation of locomotive power, also can absorb a large amount of harmonic waves that locomotive produces.
The advantage that the non phase separation type traction power supply equipment that this railway locomotive is used has is: change the phase-splitting power supply into no phase-splitting power supply, can realize drawing the big perforation of contact line, avoided the power supply again again of frequent outage exchange power phase, guaranteed device security, for train safe, at a high speed, efficient operation provides guarantee.Stable and improved supply power voltage, discharged the reserve tractive force 20～50% of locomotive, reduced supply current; The power factor (PF) that can improve electric power system reaches more than 0.98, greatly reduces negative-sequence current, has increased active power, reduced reactive loss, thereby harmonic content is few, reduces pollution traction power transformation net and power supply grid, improve power supply quality, improved the utilization ratio of electrical network.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
1 couple of the present invention does detailed description below in conjunction with accompanying drawing.
Referring to Fig. 1, the non phase separation type traction power supply equipment that this railway locomotive is used is become with the energy distribution governor motion by traction transformer, the A of described traction transformer 16 outputs joins and draws contact line 4, the C rail 5 that joins, the B energy distribution of joining is regulated machine, described energy distribution is regulated machine by master controller 2, driver 3, three current sensors 13,14,15, three voltage sensors 10,11,12, three reactors 17,18,19, electronic power switch brachium pontis 7, supporting electric capacity arm 6 forms, wherein, described electronic power switch brachium pontis 7 is connected in parallel with support electric capacity arm 6, described driver 3 is connected between the control terminal and master controller 2 of electronic power switch brachium pontis 7, the signal output part of current sensor and voltage sensor connects master controller 2, signal input part respectively with the A of traction transformer output mutually, the B phase, C links, described electronic power switch brachium pontis 7 is made up of three groups of electronic power switches, three reactors 17,18, an end of 19 is connected to the mid point U of three groups of corresponding brachium pontis separately, V, on the W, the other end respectively with the A of the output of traction transformer 16 mutually, the B phase, C links.
Described master controller 2 can by DSP or the integrated circuit with similar functions with and conventional peripheral circuit form, described driver 3 can be made up of EXB841 or electronic power switch drive circuit and conventional peripheral circuit with similar functions, by the control end of the electronic power switch in the optical fiber connection electronic power switch brachium pontis 7, electronic power switch brachium pontis 7 and support electric capacity arm 6 are connected in parallel between P+ and the P-.These all belong to existing brachium pontis utilization control technology, no longer provide its physical circuit here and give unnecessary details.
The energy of traction transformer 16 output divides two parts transmission during work: a part of electric energy import that this nothings phase-splitting traction power set is transformed into DC side p+, p-with the electric energy of AC side B phase and with electrical power storage in support electric capacity arm 6; Current sensor 13,14,15 current samples of finishing traction transformer 16 outputs detect and input master controller 2, voltage sensor 10,11,12 finish the voltage detecting that traction transformer 16 is exported and import master controller 2, master controller 2 is by current sensor 13,14,15 and voltage sensor 10,11, the signal of 12 inputs carries out analytical calculation to the power of traction transformer 16 three-phases output, and send the switch motion that drive signal control electronic power switch brachium pontis 7 finishes specific time sequence according to the result of analytical calculation and carry out four quadrant running, make energy in the bridge circuit that brachium pontis 7 is formed, pass through three reactors 17,18, energy A end and the C end from newly be assigned to traction transformer 16 of B in mutually in 19 traction transformers 16, and then obtain three-phase equilibrium conversion; Another part is to 4 power supplies of traction contact line, and traction locomotive 8 obtains electric energy by pantograph 9, and electric current passes through rail 5 and forms current paths, flows into the C phase of traction transformer 16, thereby realizes the high efficiency and the fail safe of no phase-splitting power supply and acquisition electric power system.
Traction power supply net, the A power distribution equipment that joins that the output B of traction transformer can be joined, its operation principle is the same.
Claims (1)
1. non phase separation type traction power supply equipment that railway locomotive is used, it is characterized in that described no phase-splitting traction power set is made of traction transformer and energy distribution adjusting machine, the A of the described traction transformer output traction contact line that joins, the C rail that joins, the B energy distribution of joining is regulated machine, described energy distribution is regulated machine by master controller, driver, the electronic power switch brachium pontis, support the electric capacity arm, three current sensors, three voltage sensors, three reactors are formed, wherein, described electronic power switch brachium pontis is connected in parallel with support electric capacity arm, described driver is connected between the control terminal and master controller of electronic power switch brachium pontis, the signal output part of three current sensors and three voltage sensors connects master controller, signal input part respectively with the A of the output of traction transformer mutually, the B phase, C is connected, described electronic power switch brachium pontis is made up of three groups of electronic power switches, one end of three reactors is connected to the mid point (U of three groups of corresponding brachium pontis separately, V, W) on, the other end respectively with the A of traction transformer output mutually, the B phase, C links.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100584064A CN101503065B (en) | 2009-02-23 | 2009-02-23 | Non phase separation type traction power supply equipment for railway locomotive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100584064A CN101503065B (en) | 2009-02-23 | 2009-02-23 | Non phase separation type traction power supply equipment for railway locomotive |
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| CN101503065A CN101503065A (en) | 2009-08-12 |
| CN101503065B true CN101503065B (en) | 2011-05-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035212B (en) * | 2010-12-10 | 2012-11-14 | 清华大学 | Electric locomotive non-power-off neutral section passing-electric energy quality comprehensive compensation device and method |
| CN102963272B (en) * | 2012-12-03 | 2014-11-05 | 西南交通大学 | Through cophase power supply system for alternating-current electrified railway |
| CN104015632B (en) * | 2014-05-30 | 2016-06-01 | 吉林大学 | High speed passenger dedicated railway EMUs whole process did not establish the power supply system of phase-splitting |
| CN106114294B (en) * | 2016-06-30 | 2018-07-27 | 成都交大许继电气有限责任公司 | A kind of non-shut-brake neutral-section passing system of EMU and fault recognition method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294886B1 (en) * | 1998-08-28 | 2001-09-25 | Alstom France Sa | Supply system for an electric traction vehicle |
| CN101117097A (en) * | 2007-07-10 | 2008-02-06 | 北京交通大学 | Gate circuit transistor controlling series transformer type electrified railway dragging net pressure-regulating-apparatus |
| CN201350850Y (en) * | 2009-02-23 | 2009-11-25 | 吴加林 | Non phase-split traction power supply for railway locomotive |
-
2009
- 2009-02-23 CN CN2009100584064A patent/CN101503065B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294886B1 (en) * | 1998-08-28 | 2001-09-25 | Alstom France Sa | Supply system for an electric traction vehicle |
| CN101117097A (en) * | 2007-07-10 | 2008-02-06 | 北京交通大学 | Gate circuit transistor controlling series transformer type electrified railway dragging net pressure-regulating-apparatus |
| CN201350850Y (en) * | 2009-02-23 | 2009-11-25 | 吴加林 | Non phase-split traction power supply for railway locomotive |
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