CN100515824C - Traction intercrossing junction power supplying method in train two-step method - Google Patents
Traction intercrossing junction power supplying method in train two-step method Download PDFInfo
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- CN100515824C CN100515824C CN 200610031059 CN200610031059A CN100515824C CN 100515824 C CN100515824 C CN 100515824C CN 200610031059 CN200610031059 CN 200610031059 CN 200610031059 A CN200610031059 A CN 200610031059A CN 100515824 C CN100515824 C CN 100515824C
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Abstract
The present invention relates to power supply distribution method, and is especially one crossed connection method for two-step traction of train. The method includes the up power supply bus including one power line comprising one current transformer, one up feeding cable, corresponding switches and one up long stator coil and one other line comprising one current transformer, one down feeding cable, corresponding switches and one down long stator coil; and the down power supply bus including one power line comprising one current transformer, one down feeding cable, corresponding switches and one down long stator coil and one other line comprising one current transformer, one up feeding cable, corresponding switches and one up long stator coil. The present invention makes it possible for the train to obtain 50 % of the running electric power in case of power failure in the up power supply bus or in the down power supply bus while solving the technological problem of recovering feedback electric energy.
Description
Technical field:
The invention relates to distribution method, particularly about the method for traction electric power is provided to electric locomotive.
Background technology:
In the traction of electric locomotive, the electric locomotive that particularly uses long stator synchronous linear motor to drive, what use is the two step method traction, its interlaced arrangement of long stator coil on two beam-and-rails that is laid in, therefore, concerning uplink or downlink, all formed the single-line battle array that two row are parallel to each other and are made up of each long stator coil, by current transformer long stator coil has been powered by the power supply busbar.For making each stator coil in the single-line battle array obtain electricity successively, form a magnetic field that moves forward and come tractor-trailer train to advance, between current transformer and stator coil, also be provided with feed cable and switch.Fig. 1 is the connection signal of its method of supplying power to, wherein each stator coil among two row long stator coil 4a, the 4b of uplink separately with a switch 6 respectively with cooresponding two up feed cable 7a, 7b in one link to each other, a up feed cable 7a links to each other with up power supply busbar 1 by a current transformer 3a, and the up feed cable 7b of another root links to each other with up power supply busbar 1 by another current transformer 3b; Each stator coil among two row long stator coil 5a, the 5b of same downlink separately with a switch 6 respectively with cooresponding two descending feed cable 8a, 8b in one link to each other, descending feed cable 8a links to each other with descending power supply busbar 2 by a current transformer 3c, and another descending feed cable 8b links to each other with descending power supply busbar 2 by another current transformer 3d.So just make long stator coil 4a, the 4b of uplink and downlink long stator coil 5a, 5b each obtain variable-frequency variable-voltage power supply since up power supply busbar 1 and descending power supply busbar 2.And up power supply busbar 1 and 2 of descending power supply busbars also are provided with interconnection switches, in case during a certain power supply busbar dead electricity, can realize that power supply is interconnected.There is following defective in the method for supplying power to of present this two step method traction:
When power supply busbar 1 or 2 and directly continuous the superior and the subordinate's equipment or parts et out of order, thereby when causing this power supply busbar not accept power supply, to lose power supply by the uplink of this power supply busbar power supply or the current transformer of downlink accordingly, cooresponding stator segment then loses the propulsive effort of traction, train operation is forced to interrupt, or relies on the other end module of both end power supplying that it is powered.
Train is in operation, when the train of a certain section is in braking mode, in the circuit two cover high-power converter is in braking mode simultaneously, because the braking energy of train is big, the feedback electric energy that glancing impact produces is much larger than the general living load demand of this section busbar, and therefore, the power supply busbar can't absorb the feedback electric energy of train braking, can only can not recycle by the braking resistor emptying of the DC side in the middle of the current transformer.
Summary of the invention:
The object of the present invention is to provide a kind of improved cross connect method of supplying power to of train two step method traction, when mainly solving power supply busbar and the superior and the subordinate's electrical equipment that directly links to each other or parts et out of order, no matter that section power supply busbar is stopped power supply, the corresponding uplink and downlink train still can obtain the technical matters of 50% operation electric energy from path, secondly is the technical matters that solves the recycling of feedback electric energy.
The technical scheme that the present invention solves the problems of the technologies described above is:
A kind of improved cross connect method of supplying power to of train two step method traction, comprise up power supply busbar through current transformer, up feed cable and corresponding switch be connected with the long stator coil of uplink with descending power supply busbar through current transformer, descending feed cable is connected power supply with corresponding switch with the long stator coil of downlink, it is characterized in that: this up power supply busbar overlaps current transformer with one, a up feed cable is connected power supply with corresponding switch with a row long stator coil of uplink, also is connected power supply with corresponding switch with another row long stator coil of downlink through the descending feed cable of another root with another set of current transformer; This descending power supply busbar is connected power supply with corresponding switch with a row long stator coil of downlink with a cover current transformer, a descending feed cable, also is connected power supply with another set of current transformer, the up feed cable of another root and corresponding switch with another row long stator coil of uplink.
It is characterized in that: this current transformer is high-power converter or four-quadrant reversible convertor.
Beneficial effect of the present invention is as follows:
1, can not adopt the both end power supplying module to reduce the configuration of current transformer at the low regime or the general short range section of circuit, save a large amount of investments.
2, be under the single-ended powering mode in system, even can guarantee effectively that not can not be awarded electricity because of high voltage supply busbar and the relevant relevant current transformer that electrical equipment or parts caused thereof train on this rail road the accident in the middle of the circuit of being parked in of being forced to stop transport occurs.
3, under certain operation organization condition, has the feasibility that realizes the feedback of train braking energy.
4, utilization reasonably moves tissue, make the train that runs on relevant different sections be in acceleration, average rate operation or braking mode respectively, be connected on like this under the same power supply busbar, two cover current transformers of different sections are in respectively from the power supply busbar and absorb electric energy and to the mode of operation of power supply busbar feedback electric energy, realize energy complement mutually, the minimizing system draws electric energy from public electric wire net, thereby saves social public resource in short supply in large quantities.
Description of drawings:
Fig. 1 is the wiring schematic diagram of the method for supplying power to of existing train two step method traction.
Fig. 2 is a kind of wiring schematic diagram of the present invention.
The specific embodiment:
See also shown in Figure 2, the present invention comprise by up power supply busbar 1 through cover high-performance current transformer 3a and a up feed cable 7a of current transformer 3a bonded assembly, each corresponding switch 6 to a row long stator coil 4a of uplink power supply and by descending power supply busbar 2 through a high-performance current transformer 3c of cover and descending feed cable 8a of current transformer 3c bonded assembly and each corresponding switch 6 to a row long stator coil 5a of downlink power supply.And the another set of high-performance current transformer 3d of up power supply busbar 1 bonded assembly is connected with the descending feed cable 8b of another root, and through each corresponding switch 6 to another row long stator coil 5b of downlink power supply, the another set of high-performance current transformer 3b of descending power supply busbar 2 then is connected with the up feed cable 7b of another root, and powers by another row long stator coil 4b of each corresponding switch 6 to uplink.So improved cross connect has just been realized method of supplying power to of the present invention, when power supply busbar 1 or 2 and the superior and the subordinate's electrical equipment of directly linking to each other or parts (as circuit breaker etc.) all just often, its power effect and prior art are in full accord; When if up power supply busbar 1 of connection and the superior and the subordinate's electrical equipment that directly links to each other thereof or parts et out of order cause up power supply busbar 1 not to be subjected to electricity, affected only is another row long stator coil 5b in a row long stator coil 4a and the downlink in the uplink, but the row long stator coil 5a in the uplink in another row long stator coil 4b and the downlink still is subjected to electricity, and line still can have 50% tractive force and keeps train operation up and down; And certainly will cause uplink to stop transport by present existing power supply junction method shown in Figure 1.Equally, if when descending power supply busbar 2 and the superior and the subordinate's electrical equipment that directly links to each other thereof or parts et out of order cause descending power supply busbar 2 not to be subjected to electricity, line also still can have 50% traction and keeps train operation up and down, can not cause downlink to stop transport.
The present invention is after high-performance current transformer 3a, 3b, 3c and 3d change the four-quadrant reversible convertor respectively into the quadruplet in the circuit, reasonably move under the organization condition in utilization, the train of relevant different sections is in respectively to quicken/travels at the uniform speed and braking mode, two under the same power supply busbar cover current transformer that is connected on of so different sections is in respectively from the power supply busbar and absorbs electric energy and to the mode of operation of power supply busbar feedback electric energy, realize energy complement each other.When the current transformer of a section was in halted state, if the train of another section enters brake running state, the energy feedback of being born on the power supply busbar was half energy of whole train braking; And under certain operating condition, conventional load electric weight demand on feedback energy and the single power supply busbar is suitable substantially, conventional load under this power supply busbar will consume the feedback electric energy that train system car is produced at this moment, for example the train braking feedback energy is not more than under the cooresponding condition of departure interval of 3MVA and operation, uses the present invention can realize the braking energy feedback of corresponding substation.
Claims (3)
1, a kind of improved cross connect method of supplying power to of train two step method traction, comprise up power supply busbar through current transformer, up feed cable and corresponding switch be connected with the long stator coil of uplink with descending power supply busbar through current transformer, descending feed cable is connected power supply with corresponding switch with the long stator coil of downlink, it is characterized in that: this up power supply busbar overlaps current transformer with one, a up feed cable is connected power supply with corresponding switch with a row long stator coil of uplink, also is connected power supply with corresponding switch with another row long stator coil of downlink through the descending feed cable of another root with another set of current transformer; This descending power supply busbar is connected power supply with corresponding switch with a row long stator coil of downlink with a cover current transformer, a descending feed cable, also is connected power supply with another set of current transformer, the up feed cable of another root and corresponding switch with another row long stator coil of uplink.
2, the improved cross connect method of supplying power to of train two step method traction according to claim 1, it is characterized in that: described every suit current transformer is a high-power converter.
3, the improved cross connect method of supplying power to of train two step method traction according to claim 1, it is characterized in that: described every suit current transformer is the four-quadrant reversible convertor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031059 CN100515824C (en) | 2006-09-12 | 2006-09-12 | Traction intercrossing junction power supplying method in train two-step method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031059 CN100515824C (en) | 2006-09-12 | 2006-09-12 | Traction intercrossing junction power supplying method in train two-step method |
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| Publication Number | Publication Date |
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| CN101148151A CN101148151A (en) | 2008-03-26 |
| CN100515824C true CN100515824C (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610031059 Active CN100515824C (en) | 2006-09-12 | 2006-09-12 | Traction intercrossing junction power supplying method in train two-step method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103935246B (en) * | 2014-02-28 | 2015-12-02 | 青岛四方车辆研究所有限公司 | Motor train unit auxiliary power supply system and fault off-load method |
| CN113872315A (en) * | 2021-09-28 | 2021-12-31 | 北京正大蛋业有限公司 | Chicken coop fan power supply standby system raises in cages |
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Owner name: TONGJI UNIVERSITY Free format text: FORMER OWNER: SHANGHAI MAGNETIC SUSPENSION COMMUNICATION ENGINEERING TECHNOLOGY RESEARCH CENTE Effective date: 20140606 |
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Free format text: CORRECT: ADDRESS; FROM: 201204 PUDONG NEW AREA, SHANGHAI TO: 200092 YANGPU, SHANGHAI |
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Effective date of registration: 20140606 Address after: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee after: Tongji University Address before: 201204 No. 2520, Pudong, Shanghai, Longyang Road Patentee before: Shanghai Magnetic Suspension Communication Engineering Technology Research Cente |