CN104129311A - Regenerative braking technique for trains (subway trains and light rail trains) - Google Patents
Regenerative braking technique for trains (subway trains and light rail trains) Download PDFInfo
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- CN104129311A CN104129311A CN201410394674.4A CN201410394674A CN104129311A CN 104129311 A CN104129311 A CN 104129311A CN 201410394674 A CN201410394674 A CN 201410394674A CN 104129311 A CN104129311 A CN 104129311A
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Abstract
The invention discloses a regenerative braking technique for trains (subway trains and light rail trains). The regenerative braking technique is characterized in that a recycling power grid wire is additionally arranged beside a power grid wire, and braking carriages with three different speeds, namely a high speed braking carriage, a medium speed braking carriage and a low speed braking carriage, are additionally arranged, so that potential energy generated when a train runs on a gradient pavement and enters a station can be completely converted into electric energy to be recycled through the joint working of the braking carriages. In the process of potential energy recycling, through the alternative use of the high speed braking carriage, the medium speed braking carriage and the low speed braking carriage, the train can realize braking and electricity generation with full power and full load at any speed, so that the problem that braking force disappears at a low speed in the conventional regenerative braking is thoroughly solved.
Description
Technical field
The present invention relates to a kind of (subway, light rail) train and use, Regenerative Braking Technology, it is to reclaim electrical network by increase, increases, at a high speed, middling speed, low speed, 3 kinds of braking compartments, then utilize their associated working, the potential energy that train is produced on gradient road surface and the potential energy that enters the station and produce, being used alternatingly of braking compartment by 3 kinds of friction speeds, sends into recovery electrical network after potential energy is all changed into electric energy, and the resistance producing while simultaneously generating electricity by electrical generator completes brake work.
Background technology
Train regenerative brake is to carry out regenerative brake after utilization is transformed into electrical generator locomotive traction motor substantially in the world for a long time, and such brake mode exists many significant deficiency cannot overcome at all.
First heavy haul train can produce huge potential energy when the heavy grade road traveling that surpasses 10 ‰, if send into electrical network after potential energy all being changed into electric energy by regenerative brake, it is a defect that cannot overcome that grid line capacity cannot bear this at all.
Simultaneously because train is by traction electric machine is transformed into after electrical generator in (regenerative brake), the potential energy that utilizes electrical generator generating that train is produced all changes into and sends into electrical network after electric energy, then the resistance producing when utilizing electrical generator generating brakes, there is a significant deficiency in such brake modes, be exactly because the power of train traction motor is excessive, it is converted to braking force while carrying out regenerative brake after electrical generator also can be very large, while braking in sleet sky like this, will make wheel generation slide and wriggle because of track is wet and slippery, after long-term work, can make wheel occur (polygonal), thereby being in operation, train produces vibrations, cause wheel, the life-span of the critical components such as gear case reduces, affect the safe operation of train, these are verified in the regenerative brake of SS7 type electric locomotive, therefore light rail train is in operation and also can runs into identical problem.
While carrying out regenerative brake due to locomotive in addition, by traction electric machine, convert to after electrical generator, carry out regenerative brake, there is a defect in this brake mode, it is exactly the continuous reduction along with locomotive speed, braking force reduces gradually, test shows the (braking force 80 kilometers time, while being 8 kilometers 100 of braking force times), while therefore utilizing locomotive to carry out regenerative brake < < low speed, braking force disappearance > > is another defect that cannot overcome.Because locomotive regenerative brake exists above-mentioned defect, cause train cannot run at high speed on heavy grade road surface, the potential energy of the brake of entering the station also cannot carry out whole recovery, and the present invention will address the above problem by technology innovation exactly.
Summary of the invention
(subway, light rail) train is used, the Regenerative Braking Technology principle of Regenerative Braking Technology and engine is identical, technical scheme is but completely different, they one be to carry out regenerative brake after utilizing locomotive that traction motor is transformed into electrical generator, one is first on the side of grid line, to increase by one to reclaim grid line, then utilize the brake power generating machine on braking compartment to carry out regenerative brake, the electricity that regenerative brake sends is sent into recovery electrical network by the power transmission rod on braking compartment, simultaneously due to (subway, light rail, the braking distance of train, from starting point ← → terminal) shorter, the weight of train is low weight, there is basic difference with long-distance heavy haul train, therefore in order to improve braking efficiency, so both need to adopt different braking technologies, and the present invention will provide exactly a kind of (subway, light rail) Regenerative Braking Technology of train special use, its concrete scheme is:
(1) first on the power supply grid line side of (subway) traction electric machine, increase by one and reclaim grid line, and make two circuits parallel, its effect is the utilization of (subway) train, at a high speed, middling speed, the electricity that 3 kinds of low speed braking compartments (regenerative brake) send, is all delivered to and is reclaimed on grid line by the power transmission rod on compartment, then by the output line of (substation) and the power supply grid of electric driving machinery of subway grid-connected together with power supply, also can be subway station the electricity sending, air-conditioning, elevator, battery pack, illumination, power supply.And grid line is set, be to be the traction electric machine power supply of (subway) train specially with it, ensure that train normally travels, want (simultaneously
cancel)the regeneration brake system of underground engines, is all completed regenerative brake work by (braking compartment), so just reduced the control system of underground engines, just can reduce fault rate and the operating cost of underground engines.Increasing recovery grid line is to receive specially with it, at a high speed, middling speed, the electricity that 3 kinds of braking compartments of low speed send by regenerative brake, then at the correct position that reclaims electrical network, substation is set as required, finally output line and the grid line by substation is grid-connected, due to grid line with reclaim the UNICOM not each other that grid line is minute open shop, so send how many electricity recovery electrical networks by regenerative brake, can both bear.Designing technique is simple like this, and complicated control system has been cancelled in practicality, therefore can reduce the accident rate of underground engines.
(2) at (subway, light rail) on train, realize regenerative brake completely, my customized design the braking compartment of 3 kinds of friction speeds, method is that 4 axletree power wheels in braking compartment are all designed for uniformity together with bogie truck, can not there is the situation of phase mutual interference at work, then by changing the diameter of axletree power wheel and electrical generator power wheel, produce, at a high speed, middling speed, the braking compartment of 3 kinds of friction speeds of low speed, then according to the variation of train running speed, be used alternatingly, so just can make train exist, at a high speed, middling speed, low speed, in time, can both realize, (full power, brake at full capacity) and generating, concrete grammar is,
1. brake at a high speed compartment, it is when all increasing by one (double-speed speed change gear) and use second gear on 4 axletrees in braking compartment, generator speed remains in a stable scope, (for example the rotating speed of train electrical generator in the time of 60 kilometers is 1500 to turn, can float up and down 10 kilometers, after speed is lower than 50 kilometers, by control system, becomes middling speed and brake).
2. middling speed is braked compartment, it is also when all increasing by one (double-speed speed change gear) and use second gear on 4 axletrees in braking compartment, generator speed remains in a stable scope, (for example the rotating speed of train electrical generator in the time of 40 kilometers is 1500 to turn, can float up and down 10 kilometers, after speed is lower than 30 kilometers, by control system, becomes low speed and brake)
3. low speed is braked compartment, it is also when all increasing by one (double-speed speed change gear) and use second gear on 4 axletrees in braking compartment, generator speed remains in a stable scope, (for example the rotating speed of train electrical generator in the time of 20 kilometers is 1500 to turn, and can float up and down 10 kilometers)
Like this by just can produce the braking compartment of (middling speed, low speed at a high speed) 3 kinds of friction speeds with three kinds of different (double-speed speed change gears).
4. simultaneously all with (during first grade of double-speed speed change gear, at a high speed, middling speed, low speed) brake generator speed on compartment all (
become identical speed), it is that the special potential energy producing on heavy grade road surface for recovery light rail train arranges, it is by high speed, middling speed, the co-operation in low speed braking compartment, (utilizing the cruise technology of hauling engine) makes the train can be on heavy grade road surface at a high speed, constant speed, the raising transport capacity that travels, can pass through Regenerative Braking Technology again, and the potential energy that heavy grade road surface is produced all changes into electric energy and reclaims.Electrical generator during with second gear (is 1500 to turn while braking at a high speed 60 kilometers, compartment, during 40 kilometers, middling speed braking compartment, be 1500 to turn, during 20 kilometers, low speed braking compartment, be 1500 to turn) at (subway, when light rail) train enters the station brake, when 70 kilometers of speed, start with braking at a high speed compartment brake, speed converts middling speed braking compartment brake to after dropping to 50 kilometers, after dropping to 30 kilometers, speed converts low speed braking compartment brake to, and can be (electrical generator owing to utilizing braking compartment to carry out regenerative brake
degree of cyclic irregularitybe controlled in a very little scope), therefore just can send, voltage, frequency, changes very little electricity, so just electricity and the smooth grid-connected condition of having created of grid line for regenerative brake is sent.
For the electricity that regenerative brake is sent, can be grid-connected with the electrical network of hauling engine smoothly, electrical generator on braking compartment will adopt and power supply, voltage, frequency, identical electrical generator generating, then sends electricity into recovery electrical network by the power transmission rod on braking compartment, finally grid-connected by (substation's output line) and hauling engine grid line.
The generator power that each axletree of braking compartment drives must be controlled at below 300kw.
If 5. use above-mentioned technology just to need in different ways on intercity light rail train, first need the gradient size according to road descending road surface, calculate and can produce great potential energy, then according to the different quantity that increases braking compartment of the gradient, the resistance that potential energy and electrical generator are produced reaches balance.
If road is while growing apart from heavy grade road surface, will at the highs and lows on gradient road surface, increase by one and reclaim grid line, power transmission rod on braking compartment is connected with recovery grid line simultaneously, then utilize the regenerative brake in braking compartment that the potential energy of gradient road surface generation is all changed into electric energy, by power transmission rod, the electricity sending is being sent into recovery electrical network, then grid-connected by voltage transformer output line and grid line.
Train just utilizes at a high speed when light grade road surface, middling speed, the co-operation in low speed braking compartment changes into electric energy potential energy by regenerative brake, by power transmission rod, electric energy is being sent into grid line, so just the potential energy of gradient road surface and the brake of entering the station all can be changed into electric energy realizes, completely, real regenerative brake.
(3) subway train just increase to reclaim after grid line and grid line forms two-wire and walks abreast, the electricity on two electrical networks but one be by power lead power supply, one is the electricity that regenerative brake sends, two lines are UNICOM not completely, need to be first after voltage transformer be adjusted while wanting UNICOM, together with grid-connected with grid line by voltage transformer output line for consumer is powered, so simultaneously owing to being the parallel safe operation problem that must solve train of two-wire.
We know that the operation interval of subway train and braking distance etc. are all regular; brake compartment does not generate electricity simultaneously when train normally travels; power transmission rod is not charged yet; therefore this has just increased the safety of train operation; not oversize from the distance of brake cable ← → stop line while also having subway train to enter the station brake; in this segment distance, we need to increase the safety precautions of pantograph and power transmission rod, could brake smoothly and generate electricity.
Power transmission rod can improve according to the electric pole that is subject to of trackless trolley car, in the length of brake cable ← → stop line, suitably strengthen the distance of grid line and recovery grid line, because so power transmission rod also can effectively be connected smooth transmission of electricity after can swinging the distance that strengthens grid line and recovery grid line, the electricity that subway regenerative brake sends can be grid-connected by output line and the locomotive power supply grid line of distribution substation, also can be for subway station, air-conditioning, elevator battery pack, illumination, power supply, due to different power supply modes, voltage, so frequency is different can be as required, the electrical generator needing is installed on the axletree in braking compartment and just can be provided different power supplys.
Below in conjunction with accompanying drawing and specific embodiment, the present invention is made to further description
Fig. 1 is braking compartment
Fig. 2 is grid line and reclaim grid line
Fig. 3 is power transmission rod
Fig. 4 is pantograph
Design philosophy of the present invention is, provide a kind of can be, subway, light rail, the potential energy that train produces on gradient road surface and the potential energy of inlet parking, all change into the regeneration brake system of electric energy, concrete technical scheme is;
Referring to, Fig. 1, Fig. 2, Fig. 3, Fig. 4.
First on the side of grid line 7, increase by 1 and reclaim 8, two circuit Hu Bu UNICOMs of grid line, reclaiming grid line 8 is handles, brakes at a high speed compartment 1, middling speed braking compartment 3, low speed braking compartment 5, by axletree 2,4,6, drive brake power generating machine, the electricity sending is delivered to recovery grid line by power transmission rod 9 and sliding block joint wheel 10,8, then the output line by distribution substation grid-connected with grid line 7 together with power supply, also can be output as subway station through voltage transformer, elevator, air-conditioning, illumination waits consumer power supply.
(braking at a high speed compartment 1 has 4 axletrees each is with an electrical generator, and there are 4 axletrees in middling speed braking compartment 3, and each is with an electrical generator, and there are 4 axletrees in low speed braking compartment 5, and each is with an electrical generator)
The regenerative brake that increases recovery grid line 8 rear haulage motors is wanted cancel all, regenerative brake work all by, brake at a high speed compartment 1, middling speed braking compartment 3, low speed braking compartment 5, completes, simultaneously, subway, the pantograph 11 above light rail train electrical network and 12 powered operation that complete as traction electric machine of sliding block joint wheel, not be used in and serve as the electricity of carrying locomotive regenerative brake to send to grid line.
Claims (2)
1. (subway, light rail) train is used, and Regenerative Braking Technology comprises, increases and reclaims grid line, manufactures (at a high speed, middling speed, low speed) braking compartment, and design brake control system etc., is characterized in that:
1. at subway, light rail, the side of train power supply line increases by one and reclaims grid line, by it at a high speed, middling speed, low speed, the electricity that braking compartment regenerative brake sends, all sends into recovery electrical network through power transmission rod, grid-connected by voltage transformer output line and grid line;
2. on 4 axletrees in every restraining motor-car railway carriage or compartment, a double-velocity transmission is all installed, when using second gear, braking compartment speed per hour electrical generator 1500 in the time of 60 kilometers turns, with it, brake when the train high speed, (this is that high speed is braked compartment),
On 4 axletrees in every restraining motor-car railway carriage or compartment, a double-velocity transmission is all installed, when using second gear, during 40 kilometers of the speed per hours in braking compartment, electrical generator 1500 turns, with it, brake when the train middling speed, (this is that middling speed is braked compartment),
On 4 axletrees in every restraining motor-car railway carriage or compartment, a double-velocity transmission is all installed, when using second gear, braking compartment electrical generator 1500 when 20 kilometers of speed per hours turns, with it, brake when the train low speed, (this is that low speed is braked compartment)
Pass through like this, at a high speed, middling speed, low speed, the alternately brake in 3 kinds of braking compartments, just can ensure train when any speed can both, full power, at full capacity, brake and generating;
While 3. using first grade of double-velocity transmission, at a high speed, middling speed, low speed, electrical generator (in the specified speed) rotating speed in 3 kinds of braking compartments all becomes identical, all 1500 to turn, this is to design while occurring length apart from heavy grade road surface for intercity light rail train specially, so just can first calculate and can produce great potential energy according to the gradient on heavy grade road surface, then according to the power of potential energy size configure electrical generator, make both reach balance, then utilize the cruise technology of locomotive, make the train can be on heavy grade road surface, at a high speed, constant speed, travel, improve conveying efficiency, can potential energy all be changed into electric energy by regenerative brake again,
2. (being subject to electric pole) principle of (power transmission rod) on braking compartment and trackless trolley car is identical, but to redesign the length that shortens it, utilize the function that it can put within the specific limits, in the scope of subway brake cable ← → stop line, the width that suitably strengthens grid line and recovery grid line, ensures the safety of regenerative brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410394674.4A CN104129311A (en) | 2014-08-13 | 2014-08-13 | Regenerative braking technique for trains (subway trains and light rail trains) |
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| CN201410394674.4A CN104129311A (en) | 2014-08-13 | 2014-08-13 | Regenerative braking technique for trains (subway trains and light rail trains) |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240582A (en) * | 2016-08-31 | 2016-12-21 | 李全瑞 | The train multifunctional railway carriage that can generate electricity |
| CN107394960A (en) * | 2017-07-26 | 2017-11-24 | 李宏江 | Railroad track electric car brake electricity-generating method and TRT |
| CN107683228A (en) * | 2015-04-02 | 2018-02-09 | 南非国营运输公司 | Regenerate railway brake system |
| CN106121941B (en) * | 2016-07-20 | 2018-07-10 | 李全瑞 | The potential energy of subway train is become the method for electric energy |
| CN116101086A (en) * | 2023-04-11 | 2023-05-12 | 唐山昌宏科技有限公司 | Intelligent speed increasing device of mining electric drive vehicle |
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| CN1745001A (en) * | 2002-12-13 | 2006-03-08 | 庞巴迪运输公司 | Braking system and braking control method |
| CN103311950A (en) * | 2013-05-15 | 2013-09-18 | 华中科技大学 | Urban rail train regenerative brake energy absorbing and using system and method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001092077A1 (en) * | 2000-05-30 | 2001-12-06 | Knorr-Bremse | Braking system for vehicles provided with abs or an anti-skid protection system |
| CN1745001A (en) * | 2002-12-13 | 2006-03-08 | 庞巴迪运输公司 | Braking system and braking control method |
| CN103311950A (en) * | 2013-05-15 | 2013-09-18 | 华中科技大学 | Urban rail train regenerative brake energy absorbing and using system and method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107683228A (en) * | 2015-04-02 | 2018-02-09 | 南非国营运输公司 | Regenerate railway brake system |
| CN107683228B (en) * | 2015-04-02 | 2020-02-07 | 南非国营运输公司 | Regenerative railway braking system |
| CN106121941B (en) * | 2016-07-20 | 2018-07-10 | 李全瑞 | The potential energy of subway train is become the method for electric energy |
| CN106240582A (en) * | 2016-08-31 | 2016-12-21 | 李全瑞 | The train multifunctional railway carriage that can generate electricity |
| CN107394960A (en) * | 2017-07-26 | 2017-11-24 | 李宏江 | Railroad track electric car brake electricity-generating method and TRT |
| CN116101086A (en) * | 2023-04-11 | 2023-05-12 | 唐山昌宏科技有限公司 | Intelligent speed increasing device of mining electric drive vehicle |
| CN116101086B (en) * | 2023-04-11 | 2023-06-13 | 唐山昌宏科技有限公司 | Intelligent speed increasing device of mining electric drive vehicle |
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