CN109367393B - Multi-contact line multiphase rectifying and alternating reversing pantograph - Google Patents
Multi-contact line multiphase rectifying and alternating reversing pantograph Download PDFInfo
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- CN109367393B CN109367393B CN201811369593.3A CN201811369593A CN109367393B CN 109367393 B CN109367393 B CN 109367393B CN 201811369593 A CN201811369593 A CN 201811369593A CN 109367393 B CN109367393 B CN 109367393B
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- staggered
- pantograph
- multiphase
- rectifying
- direct current
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/20—Details of contact bow
- B60L5/205—Details of contact bow with carbon contact members
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention relates to a multi-contact line multiphase rectifying and staggered reversing pantograph which comprises staggered reversing type current receiving sliding plates 1, a direct current bus 2, an inter-plate insulating part 3, a multiphase rectifier 8 and the like, wherein a plurality of staggered reversing type current receiving sliding plates 1 and the inter-plate insulating part 3 are staggered, each staggered reversing type current receiving sliding plate 1 is independently connected with a group of rectifying devices, the positive and negative output ends of each group of rectifying devices are connected with the direct current bus 2, and electric power is rectified by the multiphase rectifier 8 and then is sent to the direct current bus 2. The invention can reliably charge and supply power when the electric vehicle encounters the conditions of complex road conditions, frequent left and right movement of the vehicle and the like, and has smooth direct current output, small voltage pulsation and high power supply quality. The invention has the advantages of good mechanical property, high reliability and low cost, is convenient for system integration, maintenance and large-scale installation and use, is suitable for the field of mobile charging and power supply of the double-source electric vehicle or the field of fixed charging, and can be applied to the tramcar to realize multi-line multi-phase power supply.
Description
Technical Field
The invention relates to the field of charging and power supply equipment, in particular to a movable charging and power supply staggered reversing pantograph which comprises a staggered reversing pantograph plate, a multiphase rectifying circuit, an insulating part and the like.
Background
At present, electric vehicles are popularized and used in a large scale, particularly trackless rubber electric vehicles and trackless rubber buses are widely used, but the problem of restricting the charging and the power supplying of the trackless electric vehicles is still not fundamentally solved, and a large-capacity power battery scheme, a road wireless charging scheme, a rapid battery replacement scheme and a parallel contact line-trolley pole scheme are proved to be unsuitable for long-distance running and low-cost use of the electric vehicles. From long-term practice, the technology of pantograph-catenary still is an important direction for promoting the development of electric vehicles, but the bottleneck influencing the development of the technology of pantograph-catenary is as follows: on the premise of no ground rail guide and matched power supply, the running route of the trolley bus is easily limited by the technical level of a driver and various random obstacles on the road surface because the trolley bus has no fixed road right, so that the running direction of the electric vehicle can deviate from the installation direction of contact wires at any time, and meanwhile, the technical obstacles exist when the conductive sliding plate of the pantograph tracks two or more contact wires, which easily causes the serious problems of wire short circuit, contact wire and pantograph separation from contact and the like.
Therefore, the utility model discloses "multi-line staggered reversing formula common rail pantograph (application number: 201821619405.3)" takes: the technical scheme that the length of the contact line is equal to the odd multiple of the sum of the lengths of the staggered reversing type current receiving sliding plate and the insulating piece between the plates is combined, and the problems are well solved in a low-cost and high-reliability mode. However, the multi-line interleaved reversing common rail pantograph (application No. 201821619405.3) is mainly suitable for occasions with relatively stable driving lines and relatively high power consumption of vehicles, and the multi-line interleaved reversing common rail pantograph (application No. 201821619405.3) has the problems that the reversing reliability of the pantograph is easy to deteriorate due to the reasons of unskilled driving technology, complex road conditions, frequent left and right movement of vehicles and the like, so that the problem that the power supply pulsation is increased due to the fact that the insulation width between the plates is increased to improve the reliability, the power supply quality of electric vehicles is possibly deteriorated and the like is caused, and therefore new technologies need to be continuously researched to improve the reliability and the universality of the multi-line interleaved reversing common rail pantograph.
Disclosure of Invention
The invention aims to realize normal charging and power supply of an electric vehicle under the running working condition and the parking working condition by utilizing the isolation action of the insulating part 3 and the rectifying device to force the current transmitted by the contact wire 6 to be separated to the positive and negative electrode lines of the direct current bus 2 through the reversing and rectifying actions of the staggered reversing type current receiving sliding plate and the multiphase rectifier and the technical scheme that each staggered reversing type current receiving sliding plate 1 is independently connected with one group of rectifying devices.
The invention relates to a multi-contact line multiphase rectification staggered reversing type pantograph of an electric vehicle, which comprises staggered reversing type current-receiving sliding plates 1, a direct current bus 2, an inter-plate insulating part 3, a lead 4, a pantograph angle 5, a multiphase rectifier 8, an insulating part 11 and the like, wherein the staggered reversing type current-receiving sliding plates 1 and the inter-plate insulating part 3 are staggered, contact lines 6 and the staggered reversing type current-receiving sliding plates 1 are in mutual friction contact to transmit power, the staggered reversing type current-receiving sliding plates 1 are connected with the multiphase rectifier 8 through the lead 4, the power is rectified by the multiphase rectifier 8 and then sent to the direct current bus 2, the direct current bus 2 is connected with a controller 7, and the controller 7 is connected with a power battery 9, a power output line 10 and a charging device 12, and is characterized in that: each staggered reversing type power receiving sliding plate 1 is independently connected with a group of rectifying devices, and the output end of each group of rectifying devices is connected with a direct current bus 2.
The rectifier devices are diodes, thyristors (silicon controlled rectifiers), turn-off thyristors, light-operated thyristors, insulated gate bipolar transistors and other types of rectifier devices.
The multiphase rectifier 8 of the invention adopts a multiphase bridge rectification mode, namely two diodes (or other rectifying devices) are butted pairwise to form the multiphase bridge rectifier together.
The contact wires are 2 or more than 2, and can transmit direct current or single-phase alternating current, two-phase alternating current and three-phase alternating current.
The insulating part is made of insulating ceramic, mica, rubber, plastic, resin and other insulating materials.
The pantograph head can adopt a chute and short-distance rectification mode, the staggered reversing type pantograph pan 1 and the inter-plate insulating part 3 adopt a chute mode (a proper inclined included angle is formed between the front center line and the rear center line of a vehicle), the rectification devices are respectively connected to the front part and the rear part of the staggered reversing type pantograph pan 1 in a short-distance mode, and the output ends of the rectification devices are directly connected to the direct-current bus 2.
Drawings
Fig. 1 is a schematic structural view of a pantograph head of the multi-contact line multiphase rectifying and interleaving reversing type pantograph of the present invention.
Fig. 2 is a schematic diagram of the structure and principle of example 1 of the present invention using a three-contact line and multiphase bridge rectification scheme.
FIG. 3 is a schematic diagram of the structure and principle of example 2 of the present invention using chute and close-in rectification scheme.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, 2, and 3: the invention relates to a multi-contact line multiphase rectifying and staggered reversing pantograph which comprises staggered reversing type current-receiving sliding plates 1, a direct current bus 2, an inter-plate insulator 3, a lead 4, a pantograph angle 5, a multiphase rectifier 8, an insulator 11 and the like, wherein the plurality of staggered reversing type current-receiving sliding plates 1 and the inter-plate insulator 3 are staggered, contact lines 6 and the staggered reversing type current-receiving sliding plates 1 are in mutual friction contact to transmit electric power, the staggered reversing type current-receiving sliding plates 1 are connected with the multiphase rectifier 8 through the lead 4, the electric power is rectified by the multiphase rectifier 8 and then transmitted to the direct current bus 2, the direct current bus 2 is connected with a controller 7, the controller 7 is connected with a power battery 9, an electric power output line 10 and a charging device 12, each staggered reversing type current-receiving sliding plate 1 is independently connected with a group of rectifying devices, and the output end of each group of rectifying devices is connected with the direct current bus 2.
After referring to the commutator principle of a direct current motor and a multi-line staggered commutation type common rail pantograph (application number: 201821619405.3), each staggered commutation type current collecting sliding plate 1 is designed to be independently connected with a group of rectifier devices, and the positive and negative output ends of each group of rectifier devices are connected with positive and negative circuits of a direct current bus 2. Therefore, when the contact wire 6 slides in friction with any one of the alternate commutation type power receiving sliding plates 1 and sends current to the rectifier device, the current is rectified into direct current through the multiphase rectifier 8, and the current is respectively transmitted to the positive and negative electrode lines of the direct current bus according to the polarity distribution of the rectifier. Therefore, as long as the power supply network delivers current (no matter alternating current or direct current) to the contact line 6 and then to the two insulated interleaved and commutated electric contact plates 1, the current will be rectified into direct current under the rectifying action of the multiphase rectifier 8, no matter the polarity of the current.
As shown in fig. 2 and 3, it should be particularly noted that: as long as the line spacing B of the contact lines 6 is greater than the sum of the lengths a of the interleaved commutating current receiving contact plates 1 and the inter-plate insulators 3 (example 1 is 3 times, example 2 is 1.5 times), it is ensured that at least 1 inter-plate insulator 3 of the interleaved commutating current receiving contact plates 1 in contact with the two contact lines 6 plays an insulating role, and at this time, even if any one contact line 6 simultaneously contacts two adjacent interleaved commutating current receiving contact plates 1, no short-circuit fault is caused, and the current can still be sent to the positive electrode and the negative electrode of the dc bus through the rectifying device of the multiphase rectifier 8.
In a word, the multi-contact line multiphase rectifying and staggered reversing type pantograph applies the technical scheme that the staggered reversing type current receiving sliding plate 1 is used for reversing, the multiphase rectifier 8 is used for rectifying, each staggered reversing type current receiving sliding plate 1 is independently connected with a group of rectifying devices, and the insulating part 3 and the rectifying devices are used for isolating, so that the positive and negative polarity currents transmitted by the contact line 6 are forced to be separated to the positive and negative pole lines of the direct current bus 2. Therefore, when the contact wire 6 and the staggered reversing type power receiving sliding plate 1 are in relative friction sliding reversing, short circuit between lines can not occur, no current interruption exists when the contact wire 6 and the staggered reversing type power receiving sliding plate 1 are in reversing, the current reversing impact is small, the direct current output is smooth, the output direct current voltage and the output current pulsation are small, the influence on a power grid is small, the power supply quality is good, the universality of equipment is good, the reliability is high, and the cost is low. The electric vehicle can realize the high-reliability transmission of electric energy from the power supply network to the electric equipment by the pantograph, thereby realizing the mobile sharing charging and power supply (or online charging and power supply) of the electric vehicle. The invention can reliably charge and supply power when the vehicle is in the conditions of frequent left and right movement and the like caused by various reasons.
The principle and structure of the invention will now be explained in connection with examples 1, 2 (see fig. 1, 2, 3).
Example 1 (see fig. 2 for a structural schematic diagram) is a 3-time pitch scheme, and is characterized in that the line pitch of a contact line 6 is 3 times of the sum of the lengths a of a staggered reverse type current receiving sliding plate 1 and an inter-plate insulating member 3 (the higher the magnification is, the higher the withstand voltage value of the current receiving sliding plate is, the better the insulating effect is, but the higher the complexity and the higher the cost are), the figure includes several parts of the staggered reverse type current receiving sliding plate 1, a direct current bus 2, the inter-plate insulating member 3, a lead 4, a multiphase rectifier 8, etc., a plurality of staggered reverse type current receiving sliding plates 1 are staggered with the inter-plate insulating member 3, the contact line 6 and the staggered reverse type current receiving sliding plates 1 mutually slide and frictionally contact to transmit power, the staggered reverse type current receiving sliding plates 1 are connected with the multiphase rectifier 8 through the lead 4, the power is rectified by the multiphase rectifier 8 and then transmitted to the direct current bus 2, each staggered reverse type current receiving sliding plate 1 is individually connected with a group of rectifying devices, the positive and negative output ends of each group of rectifying devices are connected with the direct current bus 2.
The width of the interplate insulator 3 of this example 1 may be less than the width of the contact wire 6, and the total length of the pantograph is typically 0.5 m to 3 m. In order to improve the versatility of the device, the distance between the contact wires 6 is 40 cm (depending on the installation environment), the sum of the lengths a of the interleaved commutating current collector board 1 and the inter-board insulator 3 is typically 40/3 cm (13.33 cm), wherein the width of the inter-board insulator 3 is typically 0.5-2 cm, if the length of the current collecting region for arranging the pantograph is about 2 m, 15 interleaved commutating current collector boards 1 can be arranged, and 30 commutating diodes (or commutating devices such as thyristors) can be arranged. In the example 1, power frequency alternating current is preferably selected, so that the reconstruction cost of building engineering, traffic engineering, municipal roads and power supply facilities can be reduced. It should be particularly noted that in the embodiment 1, when power is supplied in the power frequency three-wire three-phase ac power supply mode, the pantograph has large transmission power and small dc voltage pulsation, and power supply is not affected even when the three-phase ac power is out of phase. The example 1 can be used for charging and supplying power for the electric vehicle running on the road, and can also be used for charging and supplying power for the electric vehicle in a fixed parking space in a convenient mode (compared with complex plug-in charging). The embodiment 1 is mainly applied to the field of double-source electric buses, electric vehicle mobile charging and power supply or fixed charging, and tramcars can also apply the invention to realize multi-line multi-phase power supply.
Example 2 (see fig. 3 for a structural schematic diagram) is a short-distance coupling chute type scheme, and example 2 is characterized in that the staggered commutation type current-receiving sliding plate 1 and the inter-plate insulating member 3 adopt a chute mode (have a proper inclined included angle with the front and rear central lines of the vehicle), the rectifying devices are respectively connected to the front and rear parts of the staggered commutation type current-receiving sliding plate 1 in a short distance (the wires 4 can be omitted), and the output ends of the rectifying devices are directly connected to the direct current bus 2.
Fig. 3 includes a plurality of parts such as a staggered commutation type current receiving contact plate 1, a dc bus 2, an inter-board insulator 3, a wire 4, a multiphase rectifier 8, etc., a plurality of skewed slot type staggered commutation type current receiving contact plates 1 and the inter-board insulator 3 are staggered, a contact wire 6 and the staggered commutation type current receiving contact plate 1 are in mutual sliding frictional contact for power transmission (a distance between the two is 1.5 times), and the width of the contact wire 6 is generally larger than the width of the inter-board insulator 3. Each staggered commutation type power receiving sliding plate 1 is independently connected with a group of rectifying devices, the staggered commutation type power receiving sliding plates 1 are connected with a multiphase rectifier 8 in a short distance through wires 4 (the wires 4 can be omitted), the rectifying devices are respectively connected to the front and the rear parts of the staggered commutation type power receiving sliding plates 1 in a short distance, the rectifying devices can be directly fixed on the staggered commutation type power receiving sliding plates 1, and the positive and negative output ends of each group of rectifying devices are connected with a direct current bus 2.
In example 2, when a certain contact wire 6 passes through two adjacent chute type staggered reversing type current receiving sliding plates 1, due to the existence of an inclined included angle, the contact wire 6 can contact two adjacent chute type staggered reversing type current receiving sliding plates 1 simultaneously in the process that sliding friction alternately passes through the two adjacent chute type staggered reversing type current receiving sliding plates 1, so that the current cannot be interrupted in the transmission process, the output current of example 2 is continuous, the impact of the current during reversing is small, and interruption and pulsation caused by the insulation effect of the insulating members 3 between the plates are avoided.
The structure of example 2 enables the pantograph to have better mechanical properties, higher strength, more simplicity and clarity, and meanwhile, the pantograph is convenient to manufacture, low in cost, and convenient for system integration, system maintenance and large-scale installation and use.
Claims (6)
1. A multi-contact line multiphase rectification staggered reversing type pantograph of an electric vehicle comprises staggered reversing type pantograph plates (1), direct current buses (2), inter-plate insulators (3), wires (4), pantograph corners (5), a multiphase rectifier (8) and insulators (11), wherein the staggered reversing type pantograph plates (1) and the inter-plate insulators (3) are arranged in a staggered mode, contact lines (6) and the staggered reversing type pantograph plates (1) rub against each other to slide to transmit electric power, the staggered reversing type pantograph plates (1) are connected with the multiphase rectifier (8) through the wires (4), and the electric power is rectified by the multiphase rectifier (8), to direct current bus (2), direct current bus (2) are connected with controller (7), and power battery (9), power output line (10) and charging ware (12) are being connected in controller (7), its characterized in that: each staggered and commutated type power receiving sliding plate (1) is independently connected with a group of rectifying devices, and the output end of each group of rectifying devices is connected with a direct current bus (2).
2. The multi-contact line multiphase rectifying interleaved commutating pantograph of claim 1, wherein: the rectifying device is a diode, thyristor or insulated gate bipolar transistor type rectifying device.
3. The multi-contact line multiphase rectifying interleaved commutating pantograph of claim 1, wherein: the rectifying device is a turn-off thyristor or photo thyristor type rectifying device.
4. The multi-contact line multiphase rectifying interleaved commutating pantograph of claim 1, wherein: the insulating piece is made of insulating ceramic, mica, rubber, plastic or resin.
5. The multi-contact line multiphase rectifying interleaved commutating pantograph of claim 1, wherein: the multiphase rectifier (8) adopts a multiphase bridge rectification mode, namely two rectification devices are in butt joint pairwise to form the multiphase bridge rectifier together.
6. The multi-contact line multiphase rectifying interleaved commutating pantograph of claim 1, wherein: the pantograph head adopts chute and low range rectification mode, and crisscross switching-over formula slide board (1) adopts the chute mode with inter-plate insulator (3), and crisscross switching-over formula slide board (1) and inter-plate insulator (3) have suitable slope contained angle with vehicle front and back central line, and rectifier device difference low range is connected in crisscross switching-over formula slide board (1) front and back portion, and rectifier device output direct access direct current bus (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811369593.3A CN109367393B (en) | 2018-11-16 | 2018-11-16 | Multi-contact line multiphase rectifying and alternating reversing pantograph |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811369593.3A CN109367393B (en) | 2018-11-16 | 2018-11-16 | Multi-contact line multiphase rectifying and alternating reversing pantograph |
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| CN109367393A CN109367393A (en) | 2019-02-22 |
| CN109367393B true CN109367393B (en) | 2021-08-27 |
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| CN207328156U (en) * | 2017-07-10 | 2018-05-08 | 姚胜朝 | Electric shock mechanical arm, the trolley pole containing the mechanical arm and the vehicle containing the trolley pole |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2763943C (en) * | 2009-06-18 | 2016-11-08 | Abb Technology Ag | An arrangement for exchanging power |
| PL2671748T5 (en) * | 2011-01-31 | 2024-03-04 | Hitachi, Ltd. | Driving system, driving system for railroad-vehicle, and railroad-vehicle and multi-car train mounted with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1155804A (en) * | 1997-07-30 | 1999-02-26 | Masayasu Ishii | Air noise suppressing device |
| CN101348086A (en) * | 2007-07-18 | 2009-01-21 | 北京交通大学 | Pulsating direct current traction electric power supply system |
| CN103332120A (en) * | 2013-07-04 | 2013-10-02 | 南车株洲电力机车有限公司 | Pantograph bearing static large currents and pantograph head thereof |
| CN103545901A (en) * | 2013-11-14 | 2014-01-29 | 北京先行电气有限公司 | High-power charging equipment of tramcar |
| CN104175909A (en) * | 2014-08-15 | 2014-12-03 | 王新国 | Traction network for electrified highway (street) |
| CN107187321A (en) * | 2017-07-10 | 2017-09-22 | 姚胜朝 | Electric shock mechanical arm, the trolley pole containing the mechanical arm and the vehicle containing the trolley pole |
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