CN206202001U

CN206202001U - The braking recovery system of energy-accumulating power station, train and train

Info

Publication number: CN206202001U
Application number: CN201621070494.1U
Authority: CN
Inventors: 任林; 李道林; 罗文刚
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2016-09-21
Filing date: 2016-09-21
Publication date: 2017-05-31
Anticipated expiration: 2026-09-21

Abstract

The utility model discloses the braking recovery system of a kind of energy-accumulating power station, train and train, the system includes：Traction networks, train and energy-accumulating power station；Train includes：Electric brake；Battery；Distributor, it is connected with electric brake and Traction networks, between the two with node；Two-way DC/DC converters, its one end is connected with battery, and its other end is connected with node；First controller, it is used to control distributor and two-way DC/DC converters to control two-way DC/DC converters to absorb braking electric energy by battery to Traction networks, and according to the voltage of Traction networks braking electric energy feedback in train braking；Energy-accumulating power station, it is connected with Traction networks, and the second controller of energy-accumulating power station is used to carry out discharge and recharge according to the voltage of Traction networks control energy-accumulating power station.The utility model controls the discharge and recharge of battery and energy-accumulating power station by monitoring the voltage of Traction networks, realizes the recycling and reuse of braking electric energy, has effectively saved the energy, and efficiently controls the voltage of Traction networks, improves security.

Description

The braking recovery system of energy-accumulating power station, train and train

Technical field

The utility model is related to technical field of rail traffic, the braking recovery system of more particularly to a kind of train, a kind of tool There are the train and a kind of energy-accumulating power station of the system.

Background technology

With the continuous expansion of city size, traffic increasingly congestion, track train, such as light rail, subway etc. have turned into mesh The main traffic mode in preceding many cities.Train can produce substantial amounts of braking electric energy during braking, with environmental protection Theory constantly deepen, the problem that train braking electric energy is reclaimed and recycled is very urgent.Related skill existing at present Art is disclosed, and battery is set among train braking electric energy is reclaimed, and be train power supply.But produced during train braking Braking electric energy is very big, if to be absorbed by on-vehicle battery, needs to install substantial amounts of battery ON TRAINS, not only sternly Increase the weight of train again, influence the energy consumption of train operation, and also unnecessary cost can be increased.

Therefore, correlation technique needs to be improved.

Utility model content

The utility model is intended at least solve to a certain extent one of technical problem in correlation technique.Therefore, this reality Be the braking recovery system for proposing a kind of train with a new purpose, the system can realize braking electric energy recovery and Recycle.

Another purpose of the present utility model is to propose a kind of train.Another purpose of the present utility model is to propose A kind of energy-accumulating power station.

To reach above-mentioned purpose, a kind of braking recovery system of train that on the one hand the utility model proposes, including：Traction Net, train and energy-accumulating power station；The train includes：Electric brake；Battery；Distributor, the distributor and the electric brake And the Traction networks are connected, there is node between the distributor and the electric brake；Two-way DC/DC converters, it is described One end of two-way DC/DC converters is connected with the battery, the other end and the node phase of the two-way DC/DC converters Even；First controller, first controller is connected with the distributor and the two-way DC/DC converters, first control Device processed is used to be controlled in the train braking distributor and the two-way DC/DC converters by braking electric energy feedback to institute Traction networks are stated, and according to the voltage of the Traction networks control two-way DC/DC converters are absorbed by the battery Braking electric energy；The energy-accumulating power station is connected with the Traction networks, and the energy-accumulating power station includes second controller, second control Device is used to carry out charge or discharge according to the voltage of the Traction networks control energy-accumulating power station.

According to the utility model proposes train braking recovery system, the first controller controls distribution in train braking Device and two-way DC/DC converters will brake electric energy and feed back to Traction networks, and control two-way DC/DC conversion according to the voltage of Traction networks Device is absorbed by battery to the braking electric energy of train, when the voltage of Traction networks continues to raise, recycles energy-accumulating power station to enter Row absorbs.Additionally, energy-accumulating power station can also discharge Traction networks according to the voltage of Traction networks, so as to avoid the electricity of Traction networks Press through low, the normal work of maintenance Traction networks.In the utility model, first braking electric energy is fed back to when train is braked Traction networks, if the train now on Traction networks is relatively more, can uniformly arrive other trains, therefore lead by the braking electric energy for feeding back Drawing the voltage of net will not rise much higher.If instead the train now on Traction networks is less, or the train now braked is more, Then the voltage of Traction networks will be raised, and in the utility model, preferentially be absorbed using on-vehicle battery, if in on-vehicle battery The voltage of Traction networks continues to raise after absorption, then reuse energy-accumulating power station and absorbed.Because on-vehicle battery is just arranged on row On car, therefore battery is preferentially used to be absorbed, it is to avoid braking electric energy occur excessive, it is impossible to be rapidly absorbed or consume, from And cause the problem that the electrical equipment of Traction networks is burned out.The utility model is by the battery and energy-accumulating power station on train to braking electric energy Absorbed, it is achieved thereby that the recycling and reuse of braking electric energy, reduce energy waste, reduced the load of Traction networks.And And, the utility model can improve security of system with the voltage of effective monitoring Traction networks, protection system parts.Meanwhile, this Utility model can also reduce the pressure that on-vehicle battery absorbs braking electric energy, it is to avoid energy caused by on-vehicle battery absorbability is limited The problem that source wastes.

Further, the train also includes：Coulometric detector, the coulometric detector and the first controller phase Even, the coulometric detector is used to detect the electricity of the battery, wherein, electricity of first controller according to the battery Control the two-way DC/DC converters.

Further, the train also includes：Mechanical brake, for carrying out mechanical braking to train.

Further, the train also includes：Contactor detector, the contactor detector and first controller It is connected, the contactor detector is used to detect whether the contactor of the train disconnects, wherein, first controller is also used In after contactor disconnection, the two-way DC/DC converters are controlled to enter discharge mode.

Further, the energy-accumulating power station can be multiple, and the multiple energy-accumulating power station is according to predeterminable range interval setting.

Preferably, interior per 3-6 kilometers two energy-accumulating power stations can be set, the power of the energy-accumulating power station can be 0.5- 2MW。

To reach above-mentioned purpose, a kind of train that on the other hand the utility model proposes, including：Electric brake；Battery；Match somebody with somebody Electrical equipment, the distributor and the electric brake and the Traction networks are connected, between the distributor and the electric brake With node；Two-way DC/DC converters, one end of the two-way DC/DC converters is connected with the battery, the two-way DC/ The other end of DC converters is connected with the node；First controller, first controller and the distributor and described pair It is connected to DC/DC converters, first controller is used to control the distributor and described two-way in the train braking DC/DC converters will brake electric energy feedback and control the two-way DC/ to the Traction networks, and according to the voltage of the Traction networks DC converters absorb the braking electric energy by the battery.

According to the utility model proposes train, braking when, by the first controller control distributor and two-way DC/DC Converter will brake electric energy feedback to Traction networks, and control two-way DC/DC converters to pass through battery pair according to the voltage of Traction networks The braking electric energy of train is absorbed.In the utility model, braking electric energy is first fed back into traction when train is braked Net, if the train now on Traction networks is relatively more, can uniformly arrive other trains, therefore Traction networks by the braking electric energy for feeding back Voltage will not rise much higher.If instead the train now on Traction networks is less, or the train now braked is more, then lead The voltage for drawing net will be raised, in the utility model, it is preferential using on-vehicle battery absorb avoid the occurrence of braking electric energy It is excessive, it is impossible to be rapidly absorbed or consume, so as to the problem that the electrical equipment for causing Traction networks is burned out.The utility model passes through train On battery to braking electric energy absorb, it is achieved thereby that braking electric energy recycling and reuse, reduce energy waste, drop The load of low Traction networks.Also, the utility model can be carried with the voltage of effective monitoring Traction networks, the parts of protection system The security of system high.

Specifically, the train can be straddle-type monorail train.

Further, the train includes：Bogie, the bogie is suitable to straddle seat on track girder；Car body, the car Body is connected with the bogie and is travelled along the track girder by bogie traction.

Specifically, the bogie includes：Bogie frame, the bogie frame is suitable to straddle seat in the track girder It is connected above and with the car body；Travelling wheel, the travelling wheel is pivotably mounted on the bogie frame and coordinates in institute State on the upper surface of track girder；Power set, the power set be arranged on the bogie frame on and with the travelling wheel Drive connection；Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and coordinate in the track girder On side surface.

Specifically, the bogie also includes：Draw-gear, the draw-gear be arranged on the bogie frame on and It is connected with the car body；Supported and suspended device, the supported and suspended device be arranged on the bogie frame on and with the car Body phase connects.

To reach above-mentioned purpose, the another aspect of the utility model proposes a kind of energy-accumulating power station, the energy-accumulating power station and row The Traction networks of car are connected, and the energy-accumulating power station includes second controller, and the second controller is used for according to the Traction networks The voltage control energy-accumulating power station carries out charge or discharge.

According to the utility model proposes energy-accumulating power station, second controller according to the voltage of Traction networks control energy-accumulating power station enter Row discharge and recharge.In the utility model, braking electric energy is first fed back into Traction networks when train is braked, if now drawn Online train is less, or the train now braked it is more when, then the voltage of Traction networks will be raised, in the voltage of Traction networks When higher, the second controller control energy-accumulating power station of energy-accumulating power station absorbs braking electric energy.In the utility model, if Traction networks On train it is more, then the voltage of Traction networks can decline, when the voltage of Traction networks is relatively low, the second controller control of energy-accumulating power station Energy-accumulating power station processed is discharged to Traction networks, to improve the voltage of Traction networks.The utility model is by energy-accumulating power station to braking electricity Can be reclaimed, it is achieved thereby that the recycling and reuse of braking electric energy, have saved the energy, be reduced the load of Traction networks.And And, the utility model can also reduce the pressure that on-vehicle battery absorbs braking electric energy, it is to avoid on-vehicle battery absorbability is limited to be led The problem of the energy waste of cause.

Brief description of the drawings

Fig. 1 is the block diagram of the braking recovery system according to the train of the utility model embodiment；

Fig. 2 is the block diagram of the braking recovery system according to the train of the utility model one embodiment；

Fig. 3 is the circuit theory diagrams of the braking recovery system according to the train of the utility model one embodiment, wherein, lead The voltage U for drawing net is more than the first predetermined threshold value U1；

Fig. 4 is the circuit theory diagrams of the braking recovery system according to the train of the utility model one embodiment, wherein, lead The voltage U for drawing net is less than the second predetermined threshold value U2；

Fig. 5 is the circuit theory diagrams of the braking recovery system according to the train of the utility model one embodiment, wherein, lead The voltage U for drawing net is more than the 4th predetermined threshold value U4；

Fig. 6 is the circuit theory diagrams of the braking recovery system according to the train of the utility model one embodiment, wherein, lead The voltage U for drawing net is less than the 5th predetermined threshold value U5；

Fig. 7 is the circuit theory diagrams of the braking recovery system according to the train of the utility model one embodiment, wherein, lead The voltage U for drawing net is less than the 7th predetermined threshold value U7；

Fig. 8 is the block diagram of the braking recovery system according to one train of specific embodiment of the utility model；

Fig. 9 is the block diagram of the braking recovery system of the train according to the utility model another specific embodiment；

Figure 10 is the block diagram of the braking recovery system of the train according to the utility model another specific embodiment；

Figure 11 is to be illustrated according to the operation principle of the braking recovery system of one train of specific embodiment of the utility model Figure；

Figure 12 is the block diagram of the train according to the utility model embodiment；

Figure 13 is according to one block diagram of the train of specific embodiment of the utility model；

Figure 14 is the block diagram of the train according to the utility model another specific embodiment；

Figure 15 is the block diagram of the train according to the utility model another specific embodiment；

Figure 16 is according to one structural representation of the train of specific embodiment of the utility model；

Figure 17 is the block diagram of the energy-accumulating power station according to the utility model embodiment；And

Figure 18 is according to one block diagram of the energy-accumulating power station of specific embodiment of the utility model.

Reference：

Traction networks 1, train 2 and energy-accumulating power station 3；Second controller 301；

Electric brake 201, battery 202, distributor 203, the controller 205 of two-way DC/DC converters 204 and first；

Coulometric detector 206, mechanical brake 207 and contactor detector 208；

Bogie 20 and car body 30；

Bogie frame 21, travelling wheel 22, power set 23 and horizontal wheels 24；

Draw-gear 25 and supported and suspended device 26.

Specific embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.

Below with reference to the accompanying drawings the braking to describe the energy-accumulating power station, train and train of the proposition of the utility model embodiment is reclaimed System.

As shown in figure 1, being the block diagram of the braking recovery system according to the train of the utility model embodiment.As schemed Shown in 1, the braking recovery system of the train includes：Traction networks 1, the multiple trains 2 being connected on Traction networks 1, and be arranged on Multiple energy-accumulating power stations 3 on Traction networks 1.Wherein, Traction networks 1 provide direct current to multiple trains 2, and train 2 passes through electricity getting device The power taking among Traction networks.In one embodiment of the present utility model, train 2 is straddle-type monorail train.It is new in this practicality The braking electric energy that train 2 is produced can be reclaimed by the battery of train 2 or energy-accumulating power station 3 in the embodiment of type.It is right For train 2, the braking electric energy of itself generation can be not only absorbed, it is also possible to absorb the braking electric energy of other trains 2 generation. Because train 2 is when to 1 regenerative braking electric energy of Traction networks, the voltage of Traction networks 1 can be raised, therefore train 2 and energy-accumulating power station 3 can It is monitored with the voltage to Traction networks 1.When the voltage of Traction networks 1 is raised, can be by the battery of train 2 and/or energy storage electricity Stand and 3 absorbed, so as to the voltage for preventing Traction networks 1 exceedes maximum rated voltage, and break down.Specific absorption process, To describe in detail below in an example.In embodiment of the present utility model, the braking that the battery of train 2 absorbs is electric Illumination, air-conditioning, the multimedia electricity consumption of train 2 can be can be used for.In other embodiment of the present utility model, the electricity of train 2 The braking electric energy that pond absorbs can be also used for the emergency driving of train 2, such as when train 2 cannot obtain electric energy from Traction networks 1, such as Traction networks 1 break down, or, when not having Traction networks 1, train 2 can switch to battery power.In implementation of the present utility model In example, among energy-accumulating power station 3 can be set AT STATION, by the braking electric energy of absorption for station is powered, for example, station Air-conditioning, multimedia, light etc. are powered.In embodiment of the present utility model, energy-accumulating power station 3 sets according to predeterminable range interval Put, such as interior per 3-6 kilometers to set two energy-accumulating power stations 3, the power of each energy-accumulating power station 3 is 0.5-2MW.Certain this area skill Art personnel according to the specific operating environment of train 2, can select the quantity and power of suitable energy-accumulating power station 3.

As shown in Fig. 2 being the block diagram of the braking recovery system according to the train of the utility model one embodiment. For the ease of description, an energy-accumulating power station is illustrate only in this embodiment.Train 2 includes：Electric brake 201, battery 202, Distributor 203, the controller 205 of two-way DC/DC converters 204 and first.

Wherein, as shown in Fig. 2 distributor 203 is connected with drawing electric network 1 and electric brake 201, distributor 203 and electricity are made There is node between dynamic device 201；One end of two-way DC/DC converters 204 is connected with battery 202, two-way DC/DC converters 204 The other end be connected with the node between distributor 203 and electric brake 201.First controller 205 and distributor 203 and two-way DC/DC converters 204 are connected, and the first controller 205 is used to control distributor 203 and two-way DC/DC conversion in train braking Device 204 will brake electric energy feedback to Traction networks 1, for example, open distributor 203, and two-way DC/DC converters 204 are closed, So as to braking electric energy is directly fed back into Traction networks 1.And, the first controller 205 controls two-way according to the voltage U of Traction networks DC/DC converters 204 are opened, and control two-way DC/DC converters 204 to enter charge mode, so that battery 202 is to train 2 Braking electric energy is absorbed.Also, in one embodiment of the present utility model, energy-accumulating power station 3 is connected with Traction networks 1, energy storage Power station 3 includes second controller 301, and second controller 301 is used to control energy-accumulating power station 3 to be filled according to the voltage U of Traction networks Electricity or electric discharge.Wherein, energy-accumulating power station 3 may include at least one energy-storage battery and corresponding two-way DC/DC converters.

Specifically, when train 2 is braked, traction electric machine is changed into generator operating mode, electricity system from motor working condition Dynamic device 201 produces braking electric energy and braking electric energy is fed back into Traction networks.When the train negligible amounts on Traction networks 1 are Traction networks Load on 1 is smaller, or on Traction networks 1 brake train it is more when, feed back to the braking electric energy on Traction networks 1 can exceed lead Electric energy needed for drawing the train operation on net 1, so as to cause the rising of the voltage U of Traction networks.Now, the first controller 205 is real When monitoring Traction networks 1 voltage U, it is preferential that train 2 is controlled by the first controller 205 when the voltage U of Traction networks 1 is raised Battery 202 absorbs braking electric energy.Meanwhile, the second controller 301 of energy-accumulating power station 3 monitors the voltage U of Traction networks, if in train The voltage U of Traction networks 1 continues to raise after 2 battery is absorbed, then second controller 301 controls energy-accumulating power station 3 from traction Net 1 absorbs electric energy and is charged.Similarly, when the train quantity on Traction networks 1 is more, i.e., when the load on Traction networks 1 is larger, The voltage U of Traction networks 1 can be reduced, now the voltage U of the real-time monitoring Traction networks 1 of second controller 301 of energy-accumulating power station 3, when leading When drawing the voltage U reductions of net 1, preferentially energy-accumulating power station 3 is controlled to be discharged to improve Traction networks 1 by second controller 301 Voltage.If the voltage U of Traction networks 1 continues to reduce, the first controller 205 also can control battery 202 and be discharged to improve The voltage of Traction networks 1.

It should be noted that the battery 202 of train 2 can be powered for the illumination of train, air-conditioning, multimedia.Energy storage Power station 3 be may be provided among station, and the braking electric energy for reclaiming is used to be supplied for illumination, air-conditioning, the multimedia at station etc. Electricity.So, braking electric energy can be for recycling and reuse by battery 202 and energy-accumulating power station 3, while power transformation can be reduced The load stood, has saved the energy.

Also, it should be noted that battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed, by In the distance between energy-accumulating power station 3 and train 2 farther out, energy-accumulating power station 3 is caused to absorb braking electric energy delayed.Therefore, in this practicality Prioritizing selection battery 202 absorbs braking electric energy in new embodiment, to realize braking the quick absorption of electric energy, so as to prevent not The braking electric energy for being absorbed or being consumed causes the voltage U of Traction networks to raise, and protects the parts of system, it is to avoid Traction networks 1 On electrical equipment damage, improve the security of system.

According to another specific embodiment of the present utility model, if only having the operation of rows of cars 2 to draw on Traction networks 1 There is no other trains to absorb braking electric energy on net 1, and the braking electric energy that the braking of train 2 is produced is larger, then brake electric energy it is main by Energy-accumulating power station 3 absorbs, and for example the control of the first controller 205 battery 202 absorbs the 30% of braking electric energy first, then the second control The control energy-accumulating power station 3 of device 301 absorbs the 70% of braking electric energy, to complete the recovery of braking electric energy.

According to another specific embodiment of the present utility model, if there is multiple row train 2 to run on Traction networks 1, and in storage Energy power station 3 is absorbed after braking electric energy, and the voltage U of Traction networks 1 continues to raise, then can be by non-brake on Traction networks 1 Train is charged to the battery 202 of non-brake train.Assuming that the braking electric energy for not absorbed or being consumed on Traction networks 1 is Q ＇, There are N row trains on Traction networks 1, then the average value of the braking electric energy that the battery 202 of each train absorbs on Traction networks 1 is Q ＇/N. In embodiment of the present utility model, because the braking electric energy that train braking is produced is very big, such as shown in table 1, it can be seen that The braking electric energy more than 220KW can be produced under the operating mode of AW2 and AW3.If now absorbing this using the on-vehicle battery of train A little braking electric energy, then can cause the on-vehicle battery of train very big.Therefore in embodiment of the present utility model, for such feelings Condition is combined using battery and energy-accumulating power station and absorbed, so as to avoid that substantial amounts of battery is set on train.

Table 1

Thus, the utility model embodiment absorbs braking electric energy by controlling battery and energy-accumulating power station on train, realizes The recycling and reuse of braking electric energy, reduce energy waste, reduce the load of Traction networks.Also, the utility model is implemented Example can improve security of system with the voltage of effective monitoring Traction networks, protection system parts.

The specific works that the braking recovery system of the train of the utility model embodiment is analyzed below with reference to Fig. 3-7 are former Reason.

According to one embodiment of the present utility model, as shown in figure 3, when the voltage U of Traction networks is more than the first predetermined threshold value During U1, such as 845V, the first controller 205 controls two-way DC/DC converters 204 to open, and controls two-way DC/DC converters 204 enter charge mode, so that battery 202 absorbs braking electric energy.Now, the electric energy in circuit is indicated according to arrow shown in Fig. 3 Direction flowing, wherein, the braking electric energy that train 2 is produced feeds back to Traction networks 1, and the battery 202 of train 2 absorbs braking electricity Energy.In an embodiment of the present invention when the first controller 205 controls two-way DC/DC converters 204 to open, and control two-way DC/ When DC converters 204 enter charging power mode, on high-tension side DC power conversion is and battery 202 by two-way DC/DC converters The direct current of voltage matches, with the i.e. control battery 202 absorption braking electric energy that charged to battery 202；When the first controller 205 When controlling two-way DC/DC converters 204 to open, and controlling two-way DC/DC converters 204 to enter discharge mode, two-way DC/DC becomes Parallel operation 204 is used to for the direct current that battery 202 is provided to be changed into direct current with the voltage matches of Traction networks 1, to control battery The braking electric energy that 202 carry out electric discharge will store in battery 202 feeds back to Traction networks 1.

According to one embodiment of the present utility model, as shown in figure 4, after battery 202 starts to absorb braking electric energy, leading The voltage for drawing net 1 can decline, when the voltage U of Traction networks 1 is less than the second predetermined threshold value U2, such as during 830V, the first controller 205 Control two-way DC/DC converters 204 to close so that battery 202 stop absorb braking electric energy, wherein, the second predetermined threshold value U2 is less than First predetermined threshold value U1.Now, the electric energy in circuit flows according to the direction that arrow shown in Fig. 4 is indicated, the braking that train 2 is produced Electric energy feeds back to Traction networks 1, and the battery 202 and energy-accumulating power station 3 of train 2 do not absorb braking electric energy.

Specifically, as shown in Figures 3 and 4, when train 2 is braked, braking electric energy feeds back to Traction networks 1, the first control The voltage U of the real-time monitoring Traction networks of device processed 205, if the voltage U of Traction networks is more than the first predetermined threshold value U1, such as 845V, says The bright braking electric energy now fed back on Traction networks 1 is superfluous, then the first controller 205 controls two-way DC/DC converters 204 to work In charge mode, so that braking electric energy to be charged as battery 202.Now, the braking electric energy that train 2 is produced is anti-by distributor 203 Feed Traction networks 1, while being charged to battery 202 by two-way DC/DC converters 204, i.e., part is absorbed by battery 202 Braking electric energy.If the voltage U of Traction networks is less than the second predetermined threshold value U2 such as 830V afterwards, illustrate now to feed back to Traction networks Braking electric energy on 1 has basically reached balance with the load request on Traction networks 1, then the first controller 205 controls two-way DC/DC Converter 204 is closed.Now, control battery 202 stops absorbing braking electric energy, and the braking electric energy that train 2 is produced passes through distributor 203 feed back to Traction networks 1.

The battery 202 of the utility model embodiment prioritizing selection train 2 absorbs braking electric energy, to realize braking the fast of electric energy Speed absorbs, so that, prevent the braking electric energy not consumed from causing the voltage U of Traction networks to raise, it is to avoid the device on Traction networks 1 is damaged It is bad.

According to one embodiment of the present utility model, as shown in figure 5, when the voltage U of Traction networks 1 is more than the 4th predetermined threshold value During U4, such as 855V, the control energy-accumulating power station 3 of second controller 301 is charged.Now, the electric energy in circuit is according to shown in Fig. 5 The direction flowing that arrow is indicated, the braking electric energy that train 2 is produced feeds back to Traction networks 1, and train 2 battery 202 and energy storage Power station 3 absorbs braking electric energy.In embodiment of the present utility model, when the battery of train 2 starts to absorb braking electric energy, this When due to the train on Traction networks 1 it is less, or the train 2 now braked is more, therefore the voltage of Traction networks 1 can also continue to increase Plus.When the voltage U of Traction networks 1 is more than the 4th predetermined threshold value U4, such as during 855V, control energy-accumulating power station 3 absorbs electricity from Traction networks 1 Can be charged, so as to the voltage for avoiding Traction networks exceedes maximum rated voltage.

Similarly, according to one embodiment of the present utility model, as shown in fig. 6, when the voltage U of Traction networks is pre- less than the 5th If when threshold value U5, such as 810V, the control energy-accumulating power station 3 of second controller 301 is discharged, wherein, the 5th predetermined threshold value U5 is small In the 4th predetermined threshold value U4.Now, the electric energy in circuit flows according to the direction that arrow shown in Fig. 6 is indicated, the system that train 2 is produced Electrokinetic energy feeds back to Traction networks 1, and energy-accumulating power station 3 discharges Traction networks 1.In embodiment of the present utility model, if The more voltage that may result in Traction networks of train on Traction networks 1 declines, now in order to avoid the voltage of Traction networks is less than minimum Rated voltage is, it is necessary to control energy-accumulating power station 3 to be discharged to Traction networks 1.In a specific embodiment of the present utility model, lead Draw on net 1 and there are multiple energy-accumulating power stations 3, prioritizing selection electricity energy-accumulating power station 3 high discharges to Traction networks, the storage high of such as electricity The power of energy power station 3 electric discharge is big, and the power of the low electric discharge of energy-accumulating power station 3 of electricity is smaller, so as to reach the electricity between energy-accumulating power station 3 Amount balance.

According to one embodiment of the present utility model, after energy-accumulating power station 3 discharges to Traction networks 1, the voltage of Traction networks 1 Raise, when the voltage U of Traction networks is more than the 6th predetermined threshold value U6, the control energy-accumulating power station 3 of second controller 301 stops electric discharge, Wherein, the 6th predetermined threshold value U6 is more than the 5th predetermined threshold value U5.

According to one embodiment of the present utility model, as shown in fig. 7, after energy-accumulating power station 3 discharges to Traction networks 1, such as The voltage of fruit Traction networks 1 continues to reduce, then when the voltage U of Traction networks is less than the 7th predetermined threshold value U7, second controller 301 is controlled Energy-accumulating power station processed 3 is discharged to Traction networks 1, meanwhile, the first controller 205 controls two-way DC/DC converters 204 to open, and Two-way DC/DC converters 204 are controlled to enter discharge mode, so that the battery 202 of train 2 is discharged to Traction networks 1, wherein, 7th predetermined threshold value U7 is less than the 5th predetermined threshold value U5.Now, the electric energy in circuit flows according to the direction that arrow shown in Fig. 7 is indicated Dynamic, the braking electric energy that train 2 is produced feeds back to Traction networks 1, and energy-accumulating power station 3 and battery 202 discharge Traction networks 1. In the present embodiment, if the voltage U of Traction networks 1 is too small, the battery of control energy-accumulating power station 3 and train 2 is discharged, from And quickly improve the voltage of Traction networks 1.

Specifically, if as shown in figure 5, the train on Traction networks 1 is less, or the train 2 now braked is more, then After the battery 202 of train 2 starts to absorb braking electric energy, the voltage of Traction networks 1 continues to increase, when the voltage U of Traction networks is big When the 4th predetermined threshold value U4, such as 855V, second controller 301 controls energy-accumulating power station 3 to enter from the absorption braking electric energy of Traction networks 1 Row charges, to mitigate the pressure that battery 202 absorbs braking electric energy, so as to the voltage U for avoiding Traction networks 1 exceedes Traction networks 1 most Big rated voltage Un.If as shown in fig. 6, the more voltage that may result in Traction networks of train on Traction networks 1 declines, working as traction The voltage U of net 1 is less than the 5th predetermined threshold value U5, such as during 810V, the control energy-accumulating power station 3 of second controller 301 enters to Traction networks 1 Row electric discharge.

Further, after energy-accumulating power station 3 discharges to Traction networks 1, the voltage U of Traction networks gos up, second controller 301 Continue the voltage U of monitoring Traction networks, when the voltage U of Traction networks is more than the 6th predetermined threshold value U6, such as during 830V, illustrate now anti- The braking electric energy being fed on Traction networks 1 has basically reached balance with the load on Traction networks 1, then the control of second controller 301 storage Can the stopping electric discharge of power station 3.

Further, if as shown in fig. 7, the train quantity on Traction networks 1 is more, carried out in control energy-accumulating power station 3 After electric discharge, the voltage U of Traction networks may proceed to reduce, when the voltage U of Traction networks is less than the 7th predetermined threshold value U7, the second control The control energy-accumulating power station 3 of device 301 is discharged to Traction networks 1, meanwhile, the first controller 205 controls two-way DC/DC converters 204 Open, and control two-way DC/DC converters 204 to enter discharge mode, so that the battery 202 of train 2 is put to Traction networks 1 Electricity, so as to the voltage of Traction networks 1 quickly be improved.Wherein, the discharge power of battery 202 is the maximum allowable electric discharge of battery 202 Smaller value in the maximum allowable discharge power of power and two-way DC/DC converters 204.

According to one embodiment of the present utility model, energy-accumulating power station 3 can be multiple, multiple energy-accumulating power stations 3 according to it is default away from From interval setting.In embodiment of the present utility model, among energy-accumulating power station 3 can be set AT STATION, the braking that will be absorbed Electric energy is powered for station, and for example, the air-conditioning at station, multimedia, light etc. are powered.

According to one embodiment of the present utility model, interior per 3-6 kilometers two energy-accumulating power stations 3 can be set, energy-accumulating power station 3 Power can be 0.5-2MW.Wherein, those skilled in the art can select suitable energy storage electricity according to the specific operating environment of train 2 Stand 3 quantity and power.

According to one embodiment of the present utility model, as shown in figure 8, train 2 also includes：Coulometric detector 206, wherein, Coulometric detector 206 is connected with the first controller 205, and coulometric detector 206 is used to detect the electricity of battery 202, wherein, work as electricity When pond 202 absorbs braking electric energy, if the electricity Q of battery 202 is more than the first power threshold Q1, such as 80%, then the first control Device 205 controls two-way DC/DC converters 204 to close so that battery 202 stops absorbing braking electric energy.In implementation of the present utility model In example, the charge power and discharge power of battery 202 are restricted, and the electricity after braking electric energy is absorbed of battery 202 can increase, such as The electricity of fruit battery 202 is excessive, can influence the service life of battery 202, when electricity Q is more than the first power threshold Q1, control Two-way DC/DC converters 204 are closed, and braking electric energy is absorbed to control battery 202 to stop.

According to one embodiment of the present utility model, when battery 202 is discharged to Traction networks 1, if battery 202 Electricity Q be less than the second power threshold Q2, such as 50%, then the first controller 205 control two-way DC/DC converters 204 to close with Battery 202 is set to stop electric discharge.In embodiment of the present utility model, electricity can reduce battery 202 after discharge, therefore, when When electricity Q is less than the second power threshold Q2, two-way DC/DC converters 204 are controlled to close, to control battery 202 to stop electric discharge.

Specifically, the charge power and discharge power of battery 202 are restricted, and battery is controlled in the first controller 205 202 when carrying out discharge and recharge, by electricity SOC (the State of Charge, lotus of the real-time detection battery 202 of coulometric detector 206 Electricity condition), and determine whether that battery 202 carries out discharge and recharge according to the electricity Q of battery 202.

Specifically, when battery 202 absorbs braking electric energy, the first controller 205 judges whether the electricity Q of battery 202 is big In the first power threshold Q1 such as 80%, if the electricity Q of battery 202 is more than 80%, by the maximum allowable charging of battery 202 Power limit is 0, now controls two-way DC/DC converters 204 to close, and braking electric energy is absorbed to control battery 202 to stop；If The electricity of battery 202 is less than or equal to 80%, then two-way DC/DC converters 204 keep it turned on, and control two-way DC/DC converters 204 are operated in charge mode, and braking electric energy is absorbed to control battery 202 to continue.

Further, when battery 202 is discharged to Traction networks 1, the first controller 205 judges the electricity Q of battery 202 Whether the second power threshold Q2 such as 50% is less than, if the electricity Q of battery 202 is less than 50%, the maximum of battery 202 is permitted Perhaps discharge power is limited to 0, and now, the first controller 205 controls two-way DC/DC converters 204 to close to control battery 202 to stop Only discharge.

According to one embodiment of the present utility model, as shown in figure 9, train 2 also includes：Mechanical brake 207, wherein, Mechanical brake 207 is used to carry out mechanical braking to train 2.

According to one embodiment of the present utility model, after battery 202 absorbs braking electric energy, as the voltage U of Traction networks During more than the 3rd predetermined threshold value U3,205 control machinery brake of the first controller 207 starts cooperation electric brake 201 to train 2 Braked, wherein, the 3rd predetermined threshold value U3 is more than the first predetermined threshold value U1.In embodiment of the present utility model, if led The train drawn on net 1 is less, or the train now braked is more, then battery 202 and energy-accumulating power station 3 absorb braking electric energy it Afterwards, the voltage U of Traction networks 1 may proceed to increase, when the voltage of Traction networks 1 is more than the 3rd predetermined threshold value U3, control machinery braking Device 207 starts, and auxiliary braking is carried out with to train 2.

Specifically, after battery 202 and energy-accumulating power station 3 absorb braking electric energy, the voltage U of Traction networks may proceed to increase Plus, the voltage U of the real-time monitoring Traction networks of the first controller 205, if the voltage U of Traction networks is more than the 3rd predetermined threshold value U3, The control machinery brake 207 of first controller 205 starts, and so, mechanical braking is passed through while electric braking is carried out to train 2 Auxiliary braking is carried out to train 2, to reduce the braking electric energy of the generation of train 2, so as to the voltage U for avoiding Traction networks exceedes maximum Determine voltage, and precisely quick parking can be realized.

It should be noted that when the travel speed of train 2 is less than 5Km/h or needs inlet parking, can equally control Mechanical brake processed 207 is opened and braked with to train 2.

According to one embodiment of the present utility model, as shown in Figure 10, train 2 also includes：Contactor detector 208, its In, contactor detector 208 is connected with the first controller 205, contactor detector 208 be used for detect train contactor whether Disconnect, wherein, the first controller 205 is additionally operable to after contactor disconnects, and controls two-way DC/DC converters 04 to enter electric discharge mould Formula is so that battery 202 is powered for train 2, and controls train 2 to limit Power operation.

Specifically, when contactor detector 208 detects contactor to be disconnected, illustrate that train 2 is in abnormal electrical power supply shape State, the first controller 205 judges that train 2 enters emergency driving pattern, and sends emergent traction signal, to control two-way DC/DC Converter 204 is opened, and controls two-way DC/DC converters 204 to enter discharge mode, and now, battery 202 is supplied for train 2 Electricity.Meanwhile, the discharge power of the control battery 202 of the first controller 205 is less than or equal to predetermined power threshold value such as 70KW, so that row Car 2 operates in limit power rating.

Thus, the emergency driving of train is realized by battery 202, it is to avoid the train scheduling for causing of casting anchor on the way is difficult Problem, while avoiding failure train occupation working line.

As described above, as shown in figure 11, so that the voltage class of Traction networks is as 750VDC as an example, the utility model embodiment The braking recovery system of train carry out brake electric energy absorption and recycling it is tactful specific as follows：

One) recovery of electric energy is braked

According to one embodiment of the present utility model, in train braking, voltage, on-vehicle battery 202 according to Traction networks Electricity and Traction networks 1 on the quantity of train 2 carry out the comprehensive distribution for carrying out braking electric energy, feed back to Traction networks in braking electric energy After 1, consumption absorption first is carried out by other vehicles on train, superfluous braking electric energy is preferentially controlled by the first controller 205 Battery 202 is absorbed, and when on-vehicle battery 202 cannot absorb or absorbability is limited, energy storage is controlled by second controller 301 Power station 3 is absorbed.

Specifically, as shown in figure 11, when being braked to train 2, braking electric energy feeds back to Traction networks, first determines whether battery Whether 202 electricity Q is less than or equal to the first power threshold Q1, if electricity Q is less than or equal to the first power threshold Q1, battery 202 can absorb braking electric energy, now, the voltage U of the real-time monitoring Traction networks of the first controller 205, if the row on Traction networks 1 Car negligible amounts are that the load on Traction networks 1 is smaller, or the train braked on Traction networks 1 is more, can cause the electricity of Traction networks Such as the rising of pressure, when the voltage U of Traction networks 1 is more than the first predetermined threshold value U1, during 845V, controls the battery 202 of train 2 to absorb Braking electric energy；If the voltage U of Traction networks 1 continues to raise after the battery of train 2 is absorbed, as the voltage U of Traction networks More than the 4th predetermined threshold value U4, such as during 855V, the control energy-accumulating power station 3 of second controller 301 absorbs braking electric energy.In this practicality In new embodiment, after control battery 202 and energy-accumulating power station 3 absorb braking electric energy, the voltage U of Traction networks 1 can be reduced, When the voltage U of Traction networks 1 is less than or equal to the second predetermined threshold value U2, such as during 830V, control battery 202 and energy-accumulating power station 3 stop Absorb braking energy.

That is, as shown in figure 11, when the voltage U of Traction networks reaches the 4th predetermined threshold value U4, controlling energy-accumulating power station 3 Start to absorb braking electric energy；When the voltage U of Traction networks is less than the 4th predetermined threshold value U4 more than the first predetermined threshold value U1, control electricity Pond 202 absorbs braking electric energy；When the voltage U of Traction networks is less than the second predetermined threshold value U2, braking electric energy only feeds back to Traction networks 1。

Two) recycling of electric energy is braked

Train 2 start to walk or Traction networks 1 on run train it is more when, the voltage U of Traction networks 1 can be reduced, now will The braking electric energy that battery 202 and energy-accumulating power station 3 are reclaimed is discharged on Traction networks 1 electric energy loss that can supplement Traction networks 1.Specifically Whether ground, first determine whether the electricity Q of battery 202 more than or equal to the second power threshold Q2, if electricity Q is more than or equal to the second electricity Threshold value Q2, then battery 202 can be discharged, now, the voltage U of the real-time monitoring Traction networks of second controller 301 works as Traction networks Voltage U be less than the 5th predetermined threshold value U5, such as during 810V, control energy-accumulating power station 3 discharged.Further, the first control Whether device 205 monitors the voltage U of Traction networks, and judges the voltage U of Traction networks less than the 7th predetermined threshold value U7, if the first control Device 205 judges that the voltage U of Traction networks is less than the 7th predetermined threshold value U7, then the control of second controller 301 energy-accumulating power station 3 is put Electricity, meanwhile, the first controller 205 controls two-way DC/DC converters 204 to open, and controls two-way DC/DC converters 204 to enter Discharge mode, so that the battery 202 of train 2 is discharged to Traction networks 1.

In addition, when Traction networks 1 occur power supply trouble, battery 202 can be controlled to enter discharge mode, to realize row The emergency driving of car 2.

So, the braking power consumption absorbed in battery 202 and energy-accumulating power station 301 can be fallen, in order to the He of battery 202 Energy-accumulating power station 301 proceeds the recovery of braking energy, saves operation cost.

To sum up, the braking recovery system of the train for being proposed according to the utility model embodiment, the first controller is in train system Control distributor and two-way DC/DC converters will brake electric energy and feed back to Traction networks when dynamic, and be controlled according to the voltage of Traction networks Distributor and two-way DC/DC converters are absorbed by battery to the braking electric energy of train, when the voltage of Traction networks continues to rise Gao Shi, recycles energy-accumulating power station to be absorbed.Additionally, energy-accumulating power station can also be put according to the voltage of Traction networks to Traction networks Electricity, so as to avoid the brownout of Traction networks, maintains the normal work of Traction networks.In the utility model embodiment, in train Braking electric energy is first fed back into Traction networks when being braked, if the train now on Traction networks is relatively more, can be by feedback Braking electric energy uniformly arrives other trains, therefore the voltage of Traction networks will not rise much higher.If instead now row on Traction networks Car is less, or the train now braked is more, then the voltage of Traction networks will be raised, excellent in the utility model embodiment First absorbed using on-vehicle battery, if the voltage of Traction networks continues to raise after on-vehicle battery absorption, reused storage Energy power station is absorbed.Because on-vehicle battery is just arranged on train, therefore battery is preferentially used to be absorbed, it is to avoid to occur Braking electric energy is excessive, it is impossible to is rapidly absorbed or consumes, so as to the problem that the electrical equipment for causing Traction networks is burned out.The utility model Embodiment by the battery and energy-accumulating power station on train to braking electric energy absorb, it is achieved thereby that braking electric energy recovery and Recycle, reduce energy waste, reduce the load of Traction networks.Also, the utility model can be with effective monitoring Traction networks Voltage, protection system parts improve security of system.Meanwhile, the utility model embodiment can also reduce on-vehicle battery suction Receive the pressure of braking electric energy, it is to avoid the problem of energy waste caused by on-vehicle battery absorbability is limited.

Figure 12 is the block diagram of the train according to the utility model embodiment.As shown in figure 12, the train 2 includes： Electric brake 201, battery 202, distributor 203, the controller 205 of two-way DC/DC converters 204 and first.

Wherein, distributor 203 is connected with drawing electric network 1 and electric brake 201, between distributor 203 and electric brake 201 With node；One end of two-way DC/DC converters 204 is connected with battery 202, the other end of two-way DC/DC converters 204 with match somebody with somebody Node between electrical equipment 203 and electric brake 201 is connected.First controller 205 and distributor 203 and two-way DC/DC converters 204 are connected, and the first controller 205 is used to be controlled when train 2 is braked distributor 203 and two-way DC/DC converters 204 by braking Electric energy feedback for example opens distributor 203 to Traction networks 1, and two-way DC/DC converters 204 are closed, so that will braking electricity Traction networks 1 can be directly fed back to.And, the first controller 205 controls two-way DC/DC converters 204 according to the voltage of Traction networks 1 Open, and control two-way DC/DC converters 204 to enter charge mode, so that battery 202 is inhaled to the braking electric energy of train Receive.

Specifically, when train 2 is braked, traction electric machine is changed into generator operating mode, electricity system from motor working condition Dynamic device 201 produces braking electric energy and braking electric energy is fed back into Traction networks.When the train negligible amounts on Traction networks 1 are Traction networks Load on 1 is smaller, or on Traction networks 1 brake train it is more when, feed back to the braking electric energy on Traction networks 1 can exceed lead Electric energy needed for drawing the train operation on net 1, so as to cause the rising of the voltage U of Traction networks.Now, the first controller 205 is real When monitoring Traction networks voltage U, when Traction networks 1 voltage U raise when, control battery 202 absorb braking electric energy.Similarly, when Train quantity on Traction networks 1 is more, i.e., when the load on Traction networks 1 is larger, the voltage U of Traction networks 1 can be reduced, the first control The control battery 202 of device 205 is discharged to improve the voltage of Traction networks 1.

It should be noted that the battery 202 of train 2 can be powered for the illumination of train, air-conditioning, multimedia.So, Braking electric energy can be for recycling and reuse by battery 202, while the load of transformer station can be reduced, save energy Source.

Also, it should be noted that battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed.Cause This, prioritizing selection battery 202 absorbs braking electric energy in embodiment of the present utility model, to realize braking the quick suction of electric energy Receive, so as to prevent the braking electric energy for not absorbed or being consumed from causing the voltage U of Traction networks to raise, protect zero of system Part, it is to avoid the electrical equipment on Traction networks 1 is damaged, and improves the security of system.

According to one embodiment of the present utility model, when the voltage U of Traction networks is more than the first predetermined threshold value U1, such as 845V When, the first controller 205 controls two-way DC/DC converters 204 to enter charge mode so that battery 202 absorbs braking electric energy.This When, the first controller 205 controls two-way DC/DC to enter charge mode, is and battery 202 by high-tension side DC power conversion The direct current of voltage matches, absorb braking electric energy by battery 202 to be charged to battery 202.

It should be appreciated that when the first controller 205 controls two-way DC/DC to enter discharge mode, two-way DC/DC conversion Device 204 is used to for the direct current that battery 202 is provided to be changed into direct current with the voltage matches of Traction networks 1, to control battery 202 The braking electric energy that carrying out electric discharge will store in battery 202 feeds back to Traction networks 1.

According to one embodiment of the present utility model, after battery 202 starts to absorb braking electric energy, the electricity of Traction networks 1 Such as pressure can decline, and when the voltage U of Traction networks 1 is less than the second predetermined threshold value U2, during 830V, the first controller 205 controls two-way DC/DC converters 204 close so that battery 202 stop absorb braking electric energy, wherein, the second predetermined threshold value U2 less than first preset Threshold value U1.

Specifically, when train 2 is braked, braking electric energy feeds back to Traction networks 1, and the first controller 205 is supervised in real time The voltage U of Traction networks is surveyed, if the voltage U of Traction networks is more than the first predetermined threshold value U1, such as 845V, is illustrated now to feed back to and is led The braking electric energy drawn on net 1 is superfluous, then the first controller 205 controls two-way DC/DC converters 204 to be operated in charge mode to incite somebody to action Braking electric energy charges for battery 202.Now, the braking electric energy that train 2 is produced feeds back to Traction networks 1 by distributor 203, while Battery 202 is charged by two-way DC/DC converters 204 partial brake electric energy is absorbed by battery 202.If afterwards The voltage U of Traction networks is less than the second predetermined threshold value U2 such as 830V, illustrates now to feed back to braking electric energy on Traction networks 1 and leads Draw the load request on net 1 and basically reached balance, then the first controller 205 controls two-way DC/DC converters 204 to close.This When, control battery 202 stops absorbing braking electric energy, and the braking electric energy that train 2 is produced feeds back to Traction networks 1 by distributor 203.

According to one embodiment of the present utility model, as shown in figure 13, train 2 also includes：Coulometric detector 206, wherein, Coulometric detector 206 is connected with the first controller 205, and coulometric detector 206 is used to detect the electricity of battery 202, wherein, work as electricity When pond 202 absorbs braking electric energy, if the electricity Q of battery 202 is more than the first power threshold Q1, such as 80%, then the first control Device 205 controls two-way DC/DC converters 204 to close so that battery stops absorbing braking electric energy.In embodiment of the present utility model In, the charge power and discharge power of battery 202 are restricted, and the electricity after braking electric energy is absorbed of battery 202 can increase, if The electricity of battery 202 is excessive, can influence the service life of battery 202, therefore, when electricity Q is more than the first power threshold Q1, control Make two-way DC/DC converters 204 to close, braking electric energy is absorbed to control battery 202 to stop.

According to one embodiment of the present utility model, when battery 202 is discharged to Traction networks 1, if battery 202 Electricity Q be less than the second power threshold Q2, such as 50%, then the first controller 205 control two-way DC/DC converters 204 to close with Battery 202 is set to stop electric discharge.

Specifically, when battery 202 absorbs braking electric energy, the first controller 205 judges whether the electricity Q of battery 202 is big In the first power threshold Q1 such as 80%, if the electricity Q of battery 202 is more than 80%, the charge power of battery 202 is limited It is 0, now, the first controller 205 controls two-way DC/DC converters 204 to close, braking electricity is absorbed to control battery 202 to stop Energy；If the electricity of battery 202 is less than or equal to 80%, two-way DC/DC converters 204 keep it turned on, and control two-way DC/DC Converter 204 is operated in charge mode, and braking electric energy is absorbed to control battery 202 to continue.

Further, when battery 202 is discharged to Traction networks 1, the first controller 205 judges the electricity Q of battery 202 Whether the second power threshold Q2 such as 50% is less than, if the electricity Q of battery 202 is less than 50%, by the electric discharge work(of battery 202 Rate is limited to 0, and now, the first controller 205 controls two-way DC/DC converters 204 to close to control battery 202 to stop electric discharge.

According to one embodiment of the present utility model, as shown in figure 14, train 2 also includes：Mechanical brake 207, wherein, Mechanical brake 207 is used to carry out mechanical braking to train 2.

According to one embodiment of the present utility model, after battery 202 absorbs braking electric energy, as the voltage U of Traction networks During more than the 3rd predetermined threshold value U3,205 control machinery brake of the first controller 207 starts cooperation electric brake 201 to train 2 Braked, wherein, the 3rd predetermined threshold value U3 is more than the first predetermined threshold value U1.In embodiment of the present utility model, if led The train drawn on net 1 is less, or the train now braked is more, then after battery 202 absorbs braking electric energy, Traction networks 1 Voltage U may proceed to increase, when Traction networks 1 voltage be more than the 3rd predetermined threshold value U3 when, control machinery brake 207 starts, Auxiliary braking is carried out with to train 2.

Specifically, after battery 202 absorbs braking electric energy, the voltage of the real-time monitoring Traction networks of the first controller 205 U, if the voltage U of Traction networks is more than the 3rd predetermined threshold value U3, the control machinery brake 207 of the first controller 205 starts, this Sample, when electric braking is carried out to train 2, while carrying out auxiliary braking to train 2 by mechanical braking, is produced with reducing train 2 Braking electric energy, so as to the voltage U for avoiding Traction networks exceedes maximum rated voltage, and precisely quick parking can be realized.

According to one embodiment of the present utility model, as shown in figure 15, train 2 also includes：Contactor detector 208, its In, contactor detector 208 is connected with the first controller 205, and contactor detector 208 is used to detect that the contactor of train 2 to be No disconnection, wherein, the first controller 205 is additionally operable to after contactor disconnects, and is controlled two-way DC/DC converters 204 to enter and is put Power mode is so that battery 202 is powered for train 2, and controls train 2 to limit Power operation.

Specifically, when contactor detector 208 detects contactor to be disconnected, illustrate that train 2 is in abnormal electrical power supply shape The state such as failure of Traction networks 1 power-off, the first controller 205 judges that train 2 enters emergency driving pattern, and sends emergent traction letter Number, to control two-way DC/DC converters 204 to open, and control two-way DC/DC converters 204 to enter discharge mode, now, electricity Pond 202 is powered for train 2.Meanwhile, the discharge power of the control battery 202 of the first controller 205 is less than or equal to predetermined power Threshold value such as 70KW, so that train 2 operates in limit power rating.

According to a specific embodiment of the present utility model, train 2 can be straddle-type monorail train.

According to one embodiment of the present utility model, as shown in figure 16, train 2 also includes：Bogie 20 and car body 30, its In, bogie 20 is suitable to straddle seat on track girder；Car body 30 is connected with bogie 20 and is drawn along track girder row by bogie 20 Sail.

According to one embodiment of the present utility model, as shown in figure 16, bogie 20 includes：Bogie frame 21, traveling Wheel 22, power set 23 and horizontal wheels 24, wherein, bogie frame 21 is suitable to straddle seat on track girder and is connected with car body 30； Travelling wheel 22 is pivotably mounted on bogie frame 21 and coordinates on the upper surface of track girder；Power set 23 are arranged on It is connected on bogie frame 21 and with travelling wheel 22；Horizontal wheels 24 are pivotably mounted on bogie frame 21 and coordinate On the side surface of track girder.

According to one embodiment of the present utility model, as shown in figure 16, bogie 20 also includes:Draw-gear 25 and support Suspension arrangement 26, wherein, draw-gear 25 is arranged on bogie frame 21 and is connected with car body 30；Supported and suspended device 26 is pacified It is connected on bogie frame 21 and with car body 30.

To sum up, the train for being proposed according to the utility model embodiment, in braking, distributor is controlled by the first controller Electric energy feedback will be braked to Traction networks with two-way DC/DC converters, and two-way DC/DC converters will be controlled according to the voltage of Traction networks The braking electric energy of train is absorbed by battery.In the utility model, electric energy will be first braked when train is braked Traction networks are fed back to, if the train now on Traction networks is relatively more, the braking electric energy for feeding back other trains can be uniformly arrived, Therefore the voltage of Traction networks will not rise much higher.If instead the train now on Traction networks is less, or the row now braked Car is more, then the voltage of Traction networks will be raised, and in the utility model, preferentially using on-vehicle battery absorb avoiding out Now braking electric energy is excessive, it is impossible to is rapidly absorbed or consumes, so as to the problem that the electrical equipment for causing Traction networks is burned out.This practicality is new Type is absorbed by the battery on train to braking electric energy, it is achieved thereby that the recycling and reuse of braking electric energy, reduce Energy waste, reduces the load of Traction networks.Also, the utility model can be with the voltage of effective monitoring Traction networks, protection system Parts, improve the security of system.

Figure 17 is the block diagram of the energy-accumulating power station according to the utility model embodiment.As shown in figure 17, energy-accumulating power station 3 It is connected with the Traction networks 1 of train, energy-accumulating power station 3 includes second controller 301, wherein, second controller 301 is used for according to traction The voltage U control energy-accumulating power stations 3 of net 1 carry out charge or discharge.In embodiment of the present utility model, energy-accumulating power station 3 also includes At least one energy-storage battery and corresponding two-way DC/DC converters.

According to one embodiment of the present utility model, when the voltage U of Traction networks 1 is more than the 4th predetermined threshold value U4, for example During 855V, the control energy-accumulating power station 3 of second controller 301 is charged.In embodiment of the present utility model, when the battery of train When starting to absorb braking electric energy, now because the train on Traction networks 1 is less, or the train now braked is more, therefore leads The voltage for drawing net 1 can also continue to increase.When Traction networks 1 voltage U be more than the 4th predetermined threshold value U4 when, control energy-accumulating power station 3 from Traction networks 1 absorb electric energy and are charged, so as to the voltage for avoiding Traction networks exceedes maximum rated voltage.

Similarly, according to one embodiment of the present utility model, when the voltage U of Traction networks is less than the 5th predetermined threshold value U5, For example during 810V, the control energy-accumulating power station 3 of second controller 301 is discharged, wherein, the 5th predetermined threshold value U5 presets less than the 4th Threshold value U4.In embodiment of the present utility model, if under the more voltage that may result in Traction networks of train on Traction networks 1 Drop, now in order to avoid the voltage of Traction networks is less than minimum rated voltage, it is necessary to control energy-accumulating power station 3 to be put to Traction networks 1 Electricity.There are multiple energy-accumulating power stations 3 in a specific embodiment of the present utility model, on Traction networks 1, prioritizing selection electricity is high Energy-accumulating power station 3 discharges to Traction networks, and the power of such as electricity electric discharge of energy-accumulating power station 3 high is big, and the low energy-accumulating power station 3 of electricity discharges Power it is smaller, so as to reach the electric quantity balancing between energy-accumulating power station 3.

According to one embodiment of the present utility model, after energy-accumulating power station 3 discharges to Traction networks 1, when the electricity of Traction networks 1 When pressure U is more than the 6th predetermined threshold value U6, the control energy-accumulating power station 3 of second controller 301 stops electric discharge, wherein, the 6th predetermined threshold value U6 is more than the 5th predetermined threshold value U5.

Specifically, if the train on Traction networks 1 is less, or the train now braked is more, then in the electricity of train Pond starts after absorption braking electric energy, and the voltage of Traction networks 1 continues to increase, when the voltage U of Traction networks is more than the 4th predetermined threshold value During U4, such as 855V, second controller 301 controls energy-accumulating power station 3 to be charged from the absorption braking electric energy of Traction networks 1, to mitigate Battery absorbs the pressure of braking electric energy, and the maximum rated voltage Un of Traction networks 1 is exceeded so as to the voltage U for avoiding Traction networks 1.If The more voltage that may result in Traction networks of train on Traction networks 1 declines, when the voltage U of Traction networks 1 is less than the 5th predetermined threshold value During U5, such as 810V, the control energy-accumulating power station 3 of second controller 301 is discharged to Traction networks 1.

Thus, the utility model embodiment absorbs braking electric energy by controlling energy-accumulating power station, realizes returning for braking electric energy Receive and recycle, reduce energy waste, reduce the load of Traction networks.

According to one embodiment of the present utility model, interior per 3-6 kilometers two energy-accumulating power stations 3 can be set, energy-accumulating power station 3 Power can be 0.5-2MW.Wherein, those skilled in the art can select suitable energy storage electricity according to the specific operating environment of train Stand 3 quantity and power.

According to a specific embodiment of the present utility model, as shown in figure 18, energy-accumulating power station 3 includes at least one 160KW- 80KWh modules, wherein, the positive pole of 160KW-80KWh modules is connected, and is connected with the positive pole of Traction networks 1 by positive pole cabinet, The negative pole of 160KW-80KWh modules is connected, and is connected with the negative pole of Traction networks 1 by negative pole cabinet.

To sum up, the energy-accumulating power station for being proposed according to the utility model embodiment, voltage control of the second controller according to Traction networks Energy-accumulating power station processed carries out discharge and recharge.In the utility model, braking electric energy is first fed back into Traction networks when train is braked, If the train now on Traction networks is less, or the train now braked it is more when, then the voltage of Traction networks will be raised, When the voltage of Traction networks is higher, the second controller control energy-accumulating power station of energy-accumulating power station absorbs braking electric energy.In the utility model In, if the train on Traction networks is more, the voltage of Traction networks can decline, when the voltage of Traction networks is relatively low, energy-accumulating power station Second controller control energy-accumulating power station discharged to Traction networks, to improve the voltage of Traction networks.The utility model is by storage Energy power station is reclaimed to braking electric energy, it is achieved thereby that the recycling and reuse of braking electric energy, have saved the energy, is reduced and is led Draw the load of net.Also, the utility model can also reduce the pressure that on-vehicle battery absorbs braking electric energy, it is to avoid on-vehicle battery is inhaled Receive the problem of caused energy waste limited in one's ability.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " suitable The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than indicate or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model System.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In description of the present utility model, " multiple " is meant that at least two, such as two It is individual, three etc., unless otherwise expressly limited specifically.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be Mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two The connection of element internal or two interaction relationships of element, unless otherwise clearly restriction.For the common skill of this area For art personnel, concrete meaning of the above-mentioned term in the utility model can be as the case may be understood.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score Can be the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is special Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be with Combined in an appropriate manner in any one or more embodiments or example.Additionally, in the case of not conflicting, this area Technical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be entered Row is combined and combined.

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims

1. the braking recovery system of a kind of train, it is characterised in that including：

Traction networks；

Train, the train includes：

Electric brake；

Battery；

Distributor, the distributor and the electric brake and the Traction networks are connected, the distributor and the electric braking There is node between device；

Two-way DC/DC converters, one end of the two-way DC/DC converters is connected with the battery, the two-way DC/DC conversion The other end of device is connected with the node；

First controller, first controller is connected with the distributor and the two-way DC/DC converters, first control Device processed is used to be controlled in the train braking distributor and the two-way DC/DC converters by braking electric energy feedback to institute Traction networks are stated, and according to the voltage of the Traction networks control two-way DC/DC converters are absorbed by the battery Braking electric energy；

Energy-accumulating power station, the energy-accumulating power station is connected with the Traction networks, and the energy-accumulating power station includes second controller, described second Controller is used to carry out charge or discharge according to the voltage of the Traction networks control energy-accumulating power station.

2. the braking recovery system of train as claimed in claim 1, the train also includes：

Coulometric detector, the coulometric detector is connected with first controller, and the coulometric detector is used to detect described The electricity of battery, wherein, first controller controls the two-way DC/DC converters according to the electricity of the battery.

3. the braking recovery system of train as claimed in claim 1, it is characterised in that the train also includes：

Mechanical brake, for carrying out mechanical braking to train.

4. the braking recovery system of train as claimed in claim 1, it is characterised in that the train also includes：

Contactor detector, the contactor detector is connected with first controller, and the contactor detector is used to examine Whether the contactor for surveying the train disconnects, wherein, first controller is additionally operable to after the contactor disconnects, control The two-way DC/DC converters enter discharge mode.

5. the braking recovery system of train as claimed in claim 1, it is characterised in that the energy-accumulating power station is multiple, described Multiple energy-accumulating power stations are according to predeterminable range interval setting.

6. the braking recovery system of train as claimed in claim 5, it is characterised in that in per 3-6 kilometer described in setting two Energy-accumulating power station, the power of the energy-accumulating power station is 0.5-2MW.

7. a kind of train, it is characterised in that including：

Electric brake；

Battery；

Distributor, the distributor is connected with the electric brake and Traction networks, the distributor and the electric brake it Between have node；

First controller, first controller is connected with the distributor and the two-way DC/DC converters, first control Device processed is used to be controlled in the train braking distributor and the two-way DC/DC converters by braking electric energy feedback to institute Traction networks are stated, and according to the voltage of the Traction networks control two-way DC/DC converters are absorbed by the battery Braking electric energy.

8. train as claimed in claim 7, also includes：

9. train as claimed in claim 7, it is characterised in that also include：

Mechanical brake, for carrying out mechanical braking to train.

10. train as claimed in claim 7, it is characterised in that also include：

11. trains as claimed in claim 7, it is characterised in that the train is straddle-type monorail train.

12. trains as claimed in claim 11, it is characterised in that the train includes：

Bogie, the bogie is suitable to straddle seat on track girder；

Car body, the car body is connected with the bogie and is travelled along the track girder by bogie traction.

13. trains as claimed in claim 12, it is characterised in that the bogie includes；

Bogie frame, the bogie frame is suitable to straddle seat on the track girder and is connected with the car body；

Travelling wheel, the travelling wheel is pivotably mounted on the bogie frame and coordinates in the upper surface of the track girder On；

Power set, the power set are arranged on the bogie frame and are connected with the travelling wheel；

Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and coordinate the side surface in the track girder On.

14. trains as claimed in claim 13, it is characterised in that the bogie also includes:

Draw-gear, the draw-gear is arranged on the bogie frame and is connected with the car body；

Supported and suspended device, the supported and suspended device is arranged on the bogie frame and is connected with the car body.

15. a kind of energy-accumulating power stations, it is characterised in that the energy-accumulating power station is connected with the Traction networks of train, the energy-accumulating power station bag Include second controller, the second controller be used for according to the voltage of the Traction networks control the energy-accumulating power station charged or Electric discharge.