CN106809033B

CN106809033B - The braking recovery system and method and train of train

Info

Publication number: CN106809033B
Application number: CN201610841113.3A
Authority: CN
Inventors: 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: 2018-09-11
Anticipated expiration: 2036-09-21
Also published as: CN106809033A

Abstract

The invention discloses the braking recovery system and method and train of a kind of train, which includes：Traction networks and train, train include：Electric brake；Battery；Distributor is connected with electric brake, has node between the two；Two-way DC/DC converters, one end are connected with battery, and the other end is connected with the node；First controller, it, which is used to prepare electric appliance and two-way DC/DC converters in train braking time control, will brake electric energy feedback to Traction networks, and two-way DC/DC converters is controlled according to the voltage of Traction networks, the braking electric energy of train is absorbed by battery, and when that can not obtain electric energy from Traction networks, control distributor disconnects and controls two-way DC/DC converters so that battery is train power supply.The embodiment of the present invention absorbs braking electric energy by the battery on train, and emergency driving is carried out to train by battery, to realize the recycling and reuse of braking electric energy, reduce energy waste, and avoids the difficult problem of scheduling caused by train casts anchor on the way.

Description

The braking recovery system and method and train of train

Technical field

The present invention relates to technical field of rail traffic, more particularly to braking recovery system, one kind of a kind of train have should The braking recovery method of the train of system and a kind of train.

Background technology

With the continuous expansion of city size, traffic increasingly congestion, track train, such as light rail, subway etc. have become mesh The main traffic mode in preceding many cities.Train will produce a large amount of braking electric energy during braking, with environmentally protective Theory the problem of constantly deepening, train braking electric energy is recycled and recycled it is very urgent.Has related skill at present Art discloses, and battery is arranged among train and is recycled to braking electric energy, and is train power supply.However generated when train braking It is very big to brake electric energy, if to be absorbed by on-vehicle battery, needs that a large amount of battery is installed ON TRAINS, not only sternly The weight for increasing train again, influences the energy consumption of train operation, and can also increase unnecessary cost.

Therefore, the relevant technologies needs are improved.

Invention content

The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention One purpose is to propose that the recycling and reuse of braking electric energy may be implemented in a kind of braking recovery system of train, the system.

It is another object of the present invention to propose a kind of train.A further object of the present invention is to propose a kind of train Braking recovery method.

In order to achieve the above objectives, a kind of braking recovery system for train that one aspect of the present invention embodiment proposes, including：It leads Draw net；Train, the train include：Electric brake；Battery；Distributor, the distributor is connected with the electric brake, described There is node between distributor and the electric brake；Two-way DC/DC converters, one end of the two-way DC/DC converters with The battery is connected, and the other end of the two-way DC/DC converters is connected with the node；First controller, first control Device processed is connected with the distributor and the two-way DC/DC converters, and first controller is used in the train braking Electric energy feedback will be braked to the Traction networks, and according to the traction by controlling the distributor and the two-way DC/DC converters The voltage of net controls the two-way DC/DC converters and is absorbed to the braking electric energy of the train by the battery, and Can not from the Traction networks obtain electric energy when, control the distributor disconnect and control the two-way DC/DC converters so that The battery is the train power supply.

The braking recovery system of the train proposed according to embodiments of the present invention, the first controller are prepared in train braking time control Electric appliance and two-way DC/DC converters will brake electric energy and feed back to Traction networks, and controls two-way DC/DC according to the voltage of Traction networks and become Parallel operation absorbs the braking electric energy of train by battery.In addition, when train can not obtain electric energy from Traction networks, the first control Device control distributor processed, which disconnects and controls two-way DC/DC converters, enters discharge mode so that battery is train power supply.In this hair In bright embodiment, braking electric energy is first fed back into Traction networks when train is braked, at this time if train ratio on Traction networks It is more, then the braking electric energy of feedback can uniformly be arrived to other trains, therefore the voltage of Traction networks will not increase very much.If instead Train at this time on Traction networks is less, or the train braked at this time is more, then the voltage of Traction networks will increase, in the present invention In embodiment, preferentially absorbed using on-vehicle battery.It is preferential using electricity since on-vehicle battery is just mounted on train Pond is absorbed, avoid the occurrence of braking electric energy it is excessive, can not be rapidly absorbed or consume, be burnt so as to cause the electric appliance of Traction networks The problem of ruining.The embodiment of the present invention absorbs braking electric energy by the battery on train, and is carried out to train by battery Emergency driving reduces energy waste, reduces the load of Traction networks to realize the recycling and reuse of braking electric energy.And And the embodiment of the present invention train can also be avoided to cast anchor on the way caused by the difficult problem of scheduling, avoid failure train occupation from transporting Row line.Also, the embodiment of the present invention can be protected the parts of system, improved with the voltage of effective monitoring Traction networks Security of system.

According to one embodiment of present invention, the braking recovery system of the train further includes：Energy-accumulating power station, wherein institute It states energy-accumulating power station with the Traction networks to be connected, the energy-accumulating power station includes second controller, and the second controller is used for basis The voltage of the Traction networks controls the energy-accumulating power station and carries out charge or discharge.

According to one embodiment of present invention, first controller is used to be more than first in the voltage of the Traction networks pre- If when threshold value, controlling the two-way DC/DC converters and entering charge mode so that the battery absorbs the braking electric energy.

According to one embodiment of present invention, first controller is used to be less than second in the voltage of the Traction networks pre- If when threshold value, the control two-way DC/DC converters are closed so that the battery stops absorbing the braking electric energy, wherein institute It states the second predetermined threshold value and is less than the first predetermined threshold value.

According to one embodiment of present invention, the train further includes：Coulometric detector, the coulometric detector with it is described First controller is connected, and the coulometric detector is used to detect the electricity of the battery, wherein when the battery absorbs the system When electrokinetic energy, first controller is additionally operable to when the electricity of the battery is more than the first power threshold, and control is described two-way DC/DC converters are closed so that the battery stops absorbing the braking electric energy.

According to one embodiment of present invention, the train further includes：Mechanical brake, for carrying out mechanical system to train It is dynamic.

According to one embodiment of present invention, after the battery absorbs the braking electric energy, first controller It is additionally operable to when the voltage of the Traction networks is more than third predetermined threshold value, controls the mechanical brake and start the cooperation electricity system Dynamic device brakes the train, wherein the third predetermined threshold value is more than first predetermined threshold value.

According to one embodiment of present invention, the second controller is additionally operable to be more than the 4th in the voltage of the Traction networks When predetermined threshold value, controls the energy-accumulating power station and charge.

According to one embodiment of present invention, the second controller is additionally operable to be less than the 5th in the voltage of the Traction networks It when predetermined threshold value, controls the energy-accumulating power station and discharges, wherein the 5th predetermined threshold value is less than the 4th default threshold Value.

According to one embodiment of present invention, after the energy-accumulating power station discharges to the Traction networks, second control Device processed is additionally operable to, when the voltage of the Traction networks is more than six predetermined threshold values, control the energy-accumulating power station and stop electric discharge, wherein 6th predetermined threshold value is more than the 5th predetermined threshold value.

According to one embodiment of present invention, when the voltage of the Traction networks is less than seven predetermined threshold values, described second Controller controls the energy-accumulating power station and discharges to the Traction networks, meanwhile, the first controller control control is described double Enter discharge mode to DC/DC converters so that the battery of the train discharges to the Traction networks, wherein the described 7th Predetermined threshold value is less than the 5th predetermined threshold value.

According to one embodiment of present invention, when the battery is discharged to the Traction networks, first control Device is additionally operable to when the electricity of the battery is less than the second power threshold, and the control two-way DC/DC converters are closed so that institute It states battery and stops electric discharge.

According to one embodiment of present invention, the train further includes：Contactor detector, the contactor detector with First controller is connected, and whether the contactor that the contactor detector is used to detect the train disconnects, wherein described First controller is additionally operable to after the contactor disconnects, and is controlled the distributor and is closed, and is controlled the two-way DC/DC and become Parallel operation carries out discharge mode so that the battery is the train power supply, and controls the train limit Power operation.

According to one embodiment of present invention, the energy-accumulating power station can be multiple, and the multiple energy-accumulating power station is according to default Distance interval is arranged.

According to one embodiment of present invention, can interior per 3-6 kilometers two energy-accumulating power stations, the energy-accumulating power station be set Power can be 0.5-2MW.

According to one embodiment of present invention, when the battery is the train power supply, the first controller control The train limits Power operation.

In order to achieve the above objectives, a kind of train that another aspect of the present invention embodiment proposes, including：Electric brake；Battery； Distributor, the distributor are connected with the electric brake, have node between the distributor and the electric brake；It is two-way One end of DC/DC converters, the two-way DC/DC converters is connected with the battery, the two-way DC/DC converters it is another End is connected with the node；First controller, first controller and the distributor and the two-way DC/DC converters phase Even, first controller will be made for controlling the distributor and the two-way DC/DC converters in the train braking Electrokinetic energy is fed back to the Traction networks, and controls the two-way DC/DC converters according to the voltage of the Traction networks and pass through institute It states battery to absorb the braking electric energy of the train, and when electric energy can not be obtained from the Traction networks, described in control Distributor disconnects and controls the two-way DC/DC converters so that the battery is the train power supply.

The train proposed according to embodiments of the present invention, the first controller prepare electric appliance and two-way DC/ in train braking time control DC converters will brake electric energy and feed back to Traction networks, and control two-way DC/DC converters according to the voltage of Traction networks and pass through battery The braking electric energy of train is absorbed.In addition, when train can not obtain electric energy from Traction networks, the first controller controls distribution Device, which disconnects and controls two-way DC/DC converters, enters discharge mode so that battery is train power supply.In the embodiment of the present invention, preferentially It is absorbed using on-vehicle battery.Since on-vehicle battery is just mounted on train, is preferentially absorbed, kept away using battery It is excessive to exempt from appearance braking electric energy, the problem of can not being rapidly absorbed or consume, be burned out so as to cause the electric appliance of Traction networks.This hair Bright embodiment absorbs braking electric energy by the battery on train, and carries out emergency driving to train by battery, to The recycling and reuse for realizing braking electric energy, reduce energy waste, reduce the load of Traction networks.Also, the present invention is implemented The difficult problem of scheduling, avoids failure train occupation working line caused by example can also avoid train from casting anchor on the way.Also, this Inventive embodiments can be protected the parts of system, improved security of system with the voltage of effective monitoring Traction networks.

According to one embodiment of present invention, the train further includes：Tentaculum detector, the contactor detector and institute It states the first controller to be connected, whether the contactor detector is used to detect the contactor of the train and disconnect, wherein described the One controller is additionally operable to after detecting that the contactor disconnects, and is controlled the distributor and is closed, and controls the two-way DC/ DC converters carry out discharge mode so that the battery is the train power supply, and controls the train limit Power operation.

A specific embodiment according to the present invention, the train can be straddle-type monorail train.

According to one embodiment of present invention, the train further includes：Bogie, the bogie are suitable for straddle seat in track Liang Shang；Car body, the car body are connected with the bogie and are travelled along the track girder by bogie traction.

According to one embodiment of present invention, the bogie includes：Bogie frame, the bogie frame be suitable for across Seat is connected on the track girder and with the car body；Travelling wheel, the travelling wheel are pivotably mounted on the steering structure On frame and cooperation is on the upper surface of the track girder；Power plant, the power plant are mounted on the bogie frame And it is sequentially connected with the travelling wheel；Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and coordinate On the side surface of the track girder.

According to one embodiment of present invention, the bogie further includes：Draft gear, the draft gear are mounted on institute It states on bogie frame and is connected with the car body；Supported and suspended device, the supported and suspended device are mounted on the bogie It is connected on framework and with the car body.

In order to achieve the above objectives, a kind of braking recovery method for train that another aspect of the invention embodiment proposes, including Following steps：The train is braked, and braking electric energy is generated according to brake force, and the braking electric energy is fed back to and is led Draw net；Monitor the voltage of the Traction networks；The two-way DC/DC converters that the train is controlled according to the voltage of the Traction networks are logical The battery for crossing the train absorbs the braking electric energy of the train；Judge whether the train can obtain from Traction networks Electric energy；If the train can not obtain electric energy from Traction networks, it is the train power supply to control the battery.

The braking recovery method of the train proposed according to embodiments of the present invention, first brakes train, and according to braking Power generates braking electric energy, and braking electric energy is fed back to Traction networks, then monitors the voltage of Traction networks, and according to the electricity of Traction networks Voltage-controlled battery processed absorbs the braking electric energy of train.Further, it is also possible to monitor whether train can obtain electricity from Traction networks Can, if train can not obtain electric energy from Traction networks, it is train power supply to control battery, to be met an urgent need to train by battery Driving, avoiding train from casting anchor on the way causes scheduling difficult in embodiments of the present invention, first will braking after being braked to train Electric energy feeds back to Traction networks, and judges the train quantity on Traction networks, will be anti-at this time if the train on Traction networks is relatively more The braking electric energy of feedback uniformly arrives other trains, and the voltage of Traction networks will not increase very much., whereas if train on Traction networks compared with Less, or the train braked at this time is more, then the voltage of Traction networks can be increased quickly, in an embodiment of the present invention, preferential to control On-vehicle battery processed absorbs braking electric energy, if the voltage that vehicle-mounted electric energy absorbs Traction networks after braking electric energy continues to increase, controls Energy-accumulating power station processed absorbs braking electric energy.Since on-vehicle battery is mounted on train, priority acccess control battery absorbs braking electricity Can, it is excessive to avoid the occurrence of braking electric energy, can not be rapidly absorbed or consume, so as to cause the asking of being burned out of electric appliance of Traction networks Topic.The embodiment of the present invention absorbs braking electric energy by the battery controlled on train, and carries out emergency driving to train by battery, To realize the recycling and reuse of braking electric energy, reduces energy waste, reduce the load of Traction networks.Also, the present invention The difficult problem of scheduling, avoids failure train occupation working line caused by embodiment can also avoid train from casting anchor on the way.And And the embodiment of the present invention can be protected system parts, improved security of system with the voltage of effective monitoring Traction networks.

According to one embodiment of present invention, the braking recovery method of the train further includes：According to the Traction networks Voltage controls energy-accumulating power station and carries out charge or discharge.

According to one embodiment of present invention, the braking recovery method of the train further includes：Judge the Traction networks Whether voltage is more than the first predetermined threshold value；If the voltage of the Traction networks be more than first predetermined threshold value, control described in Battery absorbs the braking electric energy.

According to one embodiment of present invention, the braking recovery method of the train further includes：Judge the Traction networks Whether voltage is less than the second predetermined threshold value；If the voltage of the Traction networks be less than second predetermined threshold value, control described in Battery stops absorbing the braking electric energy, wherein second predetermined threshold value is less than the first predetermined threshold value.

According to one embodiment of present invention, the braking recovery method of the train further includes：Detect the electricity of the battery Amount, and judge whether the electricity of the battery is more than the first power threshold；If the electricity of the battery is more than first electricity Threshold value is measured, then controls the battery and stops absorbing the braking electric energy.

According to one embodiment of present invention, the braking recovery method of the train further includes：Judge the Traction networks Whether voltage is more than third predetermined threshold value；If the voltage of the Traction networks is more than the third predetermined threshold value, train is controlled Carry out mechanical braking cooperation and implement electric braking to brake to the train, wherein the third predetermined threshold value is more than described the One predetermined threshold value.

According to one embodiment of present invention, the braking recovery method of the train further includes：Judge the Traction networks Whether voltage is more than the 4th predetermined threshold value；If the voltage of the Traction networks be more than the 4th predetermined threshold value, control described in Energy-accumulating power station charges.

According to one embodiment of present invention, the braking recovery method of the train further includes：Judge the Traction networks Whether voltage is less than the 5th predetermined threshold value；If the voltage of the Traction networks is less than the 5th predetermined threshold value, the energy storage is controlled It discharges in power station, wherein the 5th predetermined threshold value is less than the 4th predetermined threshold value.

According to one embodiment of present invention, the braking recovery method of the train further includes：Judge the Traction networks Whether voltage is more than the 6th predetermined threshold value；If the voltage of the Traction networks is more than the 6th predetermined threshold value, the energy storage is controlled Power station stops electric discharge, wherein the 6th predetermined threshold value is more than the 5th predetermined threshold value.

According to one embodiment of present invention, the braking recovery method of the train further includes：Judge the Traction networks Whether voltage is less than the 7th predetermined threshold value；If the voltage of the Traction networks is less than the 7th predetermined threshold value, the energy storage is controlled Power station is discharged to the Traction networks, meanwhile, it controls the battery and discharges to the Traction networks, wherein the described 7th Predetermined threshold value is less than the 5th predetermined threshold value.

According to one embodiment of present invention, the braking recovery method of the train further includes：Detect the electricity of the battery Amount, and judge whether the electricity of the battery is less than the second power threshold；If the electricity of the battery is less than second electricity Threshold value is measured, then controls the battery and stops electric discharge.

According to one embodiment of present invention, the braking recovery method of the train further includes：Detect the contactor of train Whether disconnect；If detecting that the contactor disconnects, it is the train power supply to control the battery, and controls the train Limit Power operation.

Description of the drawings

Fig. 1 a are the block diagram according to the braking recovery system of the train of the embodiment of the present invention；

Fig. 1 b are the block diagram according to the braking recovery system of the train of one embodiment of the invention；

Fig. 2 a are the block diagram according to the braking recovery system of the train of a specific embodiment of the invention；

Fig. 2 b are the block diagram according to the braking recovery system of the train of another specific embodiment of the invention；

Fig. 3 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U be more than the first predetermined threshold value U1；

Fig. 4 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U be less than the second predetermined threshold value U2；

Fig. 5 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U be more than the 4th predetermined threshold value U4；

Fig. 6 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U be less than the 5th predetermined threshold value U5；

Fig. 7 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U be less than the 7th predetermined threshold value U7；

Fig. 8 is the block diagram according to the braking recovery system of the train of a specific embodiment of the invention；

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

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

Figure 11 is the operation principle schematic diagram according to the braking recovery system of the train of a specific embodiment of the invention；

Figure 12 is the block diagram according to the train of the embodiment of the present invention；

Figure 13 is the block diagram according to the train of a specific embodiment of the invention；

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

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

Figure 16 is the structural schematic diagram according to the train of a specific embodiment of the invention；

Figure 17 is the flow chart according to the braking recovery method of the train of the embodiment of the present invention；

Figure 18 is the flow chart according to the braking recovery method of the train of one embodiment of the invention；

Figure 19 is the flow chart according to the braking recovery method of the train of another embodiment of the present invention；

Figure 20 is the flow chart according to the charge-discharge electric power method for limiting of the battery of the train of one embodiment of the invention；

Figure 21 is the flow chart according to the braking recovery method of the train of a specific embodiment of the invention；And

Figure 22 is the flow chart according to the braking recovery method of the train of another specific embodiment of the invention.

Reference numeral：

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

Electric brake 201, battery 202, distributor 203,204 and first controller 205 of two-way DC/DC converters；Second Controller 301；

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

Bogie 20 and car body 30；

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

Draft gear 25 and supported and suspended device 26.

Specific implementation mode

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.

Below with reference to the accompanying drawings the train and its braking recovery system and method for proposition of the embodiment of the present invention are described in detail.

As shown in Figure 1a, for according to the block diagram of the braking recovery system of the train of the embodiment of the present invention.Such as Fig. 1 a Shown, the braking recovery system of the train includes：Traction networks 1 and the multiple trains 2 being connected on Traction networks 1.Wherein, Traction networks 1 provides direct current to multiple trains 2, and train 2 takes electricity by electricity getting device among Traction networks.In one embodiment of the present of invention In, train 2 is straddle-type monorail train.The system that train 2 can be generated by the battery of train 2 in an embodiment of the present invention Electrokinetic energy is recycled.For train 2, the braking electric energy of itself generation can be not only absorbed, other row can also be absorbed The braking electric energy that vehicle 2 generates.Since train 2 is when to 1 regenerative braking electric energy of Traction networks, the voltage of Traction networks 1 can increase, therefore Train 2 can be monitored the voltage of Traction networks 1.When the voltage of Traction networks 1 increases, can be carried out by the battery of train 2 It absorbs, is more than maximum rated voltage to prevent the voltage of Traction networks 1, and break down.In one embodiment of the invention, As shown in Figure 1 b, the braking recovery system of train further includes multiple energy-accumulating power stations 3 for being connected to Traction networks 1, and energy-accumulating power station 3 can be with The voltage of Traction networks 1 is monitored, braking electric energy is absorbed with controlling energy-accumulating power station 3.Specific absorption process, will be It describes in detail in embodiment below.In an embodiment of the present invention, the braking electric energy that the battery of train 2 absorbs can be used In the illumination of train 2, air-conditioning, multimedia electricity consumption.In an embodiment of the present invention, the braking electric energy that the battery of train 2 absorbs It can be also used for the emergency driving of train 2, such as when train 2 can not obtain electric energy from Traction networks 1, if Traction networks 1 break down, Alternatively, when without Traction networks 1, train 2 can be switched to battery power.

As shown in Figure 2 a, for according to the block diagram of the braking recovery system of the train of one embodiment of the invention.Row Vehicle 2 includes：Electric brake 201, battery 202, distributor 203,204 and first controller 205 of two-way DC/DC converters.

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 prepare electric appliance 203 and two-way DC/DC transformation in train braking time control Device 204 will brake electric energy feedback and be opened to Traction networks 1, such as by distributor 203, and two-way DC/DC converters 204 are closed, It is directly fed back to Traction networks 1 to which electric energy will be braked.And first controller 205 it is two-way according to the voltage U control of Traction networks DC/DC converters 204 are opened, and are controlled two-way DC/DC converters 204 and entered charge mode, so that battery 202 is to train 2 Braking electric energy is absorbed.In an embodiment of the present invention, the first controller 205 is additionally operable to not obtain from Traction networks 1 in train 2 When taking electric energy, control distributor 203 disconnects, and controls two-way DC/DC converters 204 and open, and controls two-way DC/DC converters 204 enter discharge mode, so that the battery 202 of train 2 is powered for train 2.Also, in one embodiment of the invention, such as Shown in Fig. 2 b, the braking recovery system of train further includes：Multiple energy-accumulating power stations 3 being connected on Traction networks 1.For the ease of retouching It states, illustrates only an energy-accumulating power station in this embodiment.As shown in Figure 2 b, energy-accumulating power station 3 is connected with Traction networks 1, energy storage electricity It 3 includes second controller 301 to stand, and second controller 301 is used to be charged according to the voltage U control energy-accumulating power station 3 of Traction networks Or electric discharge.Wherein, energy-accumulating power station 3 may include at least one energy-storage battery and corresponding two-way DC/DC converters.The present invention's In embodiment, as shown in Figure 2 b, energy-accumulating power station 3 may include multiple 160KW-80KWh modules, multiple 160KW-80KWh modules Anode is connected, and is connected with the anode of Traction networks 1 by positive cabinet, and the cathode of multiple 160KW-80KWh modules is connected, and passes through Cathode cabinet is connected with the cathode of Traction networks 1.

Specifically, when train 2 is braked, traction electric machine is changed into generator operating mode, electricity system from motor working condition Dynamic device 201 generates braking electric energy and braking electric energy is fed back to Traction networks.When train negligible amounts, that is, Traction networks on Traction networks 1 Load on 1 is smaller or Traction networks 1 on the train braked it is more when, the braking electric energy fed back on Traction networks 1 can be more than to lead Draw the electric energy needed for the train operation on net 1, so as to cause the raising of the voltage U of Traction networks.At this point, the first controller 205 is real When monitor the voltage U of Traction networks 1 and preferentially pass through the first controller 205 when the voltage U of Traction networks 1 is increased and control train 2 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 increase after 2 battery is absorbed, then second controller 301 controls energy-accumulating power station 3 from traction Net 1 absorbs electric energy and charges.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, at this time the voltage U of the second controller 301 of energy-accumulating power station 3 monitoring Traction networks 1 in real time, when leading When the voltage U for drawing net 1 is reduced, energy-accumulating power station 3 is preferentially controlled by second controller 301 and is discharged to improve Traction networks 1 Voltage.If the voltage U of Traction networks 1 continues to reduce, the first controller 205 also can control battery 202 to discharge to improve The voltage of Traction networks 1.In addition, the first controller 205 is additionally operable to monitor and judge whether train 2 can obtain from Traction networks 1 in real time Electric energy is taken, if train 2 can not obtain electric energy from Traction networks 1, such as Traction networks 1 break down, alternatively, when without Traction networks 1, The first controller 205 control distributor 203 of train 2 disconnects, and controls two-way DC/DC converters 204 and open, and controls two-way DC/DC converters 204 enter discharge mode, so that the battery 202 of train 2 carries out emergency driving to train 2.

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 may be provided among station, and the braking electric energy of recycling is used to supply for the illumination at station, air-conditioning, multimedia etc. Electricity.In this way, 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.

It should also be noted that, battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed, by Farther out in the distance between energy-accumulating power station 3 and train 2, energy-accumulating power station 3 is caused to absorb braking electric energy lag.Therefore, in the present invention Embodiment in preferentially select battery 202 absorb braking electric energy, with realize braking electric energy quick absorption, to prevent not inhaled It receives or the braking electric energy of consumption causes the voltage U of Traction networks to increase, protect the parts of system, avoid on Traction networks 1 Electric appliance damages, and improves the safety of system.

Another specific embodiment according to the present invention, if it is Traction networks 1 there was only the operation of rows of vehicles 2 on Traction networks 1 It is upper to absorb braking electric energy without other trains, and the braking electric energy that the braking of train 2 generates is larger, then brakes electric energy mainly by energy storage Power station 3 absorbs, such as the control battery 202 of the first controller 205 first absorbs the 30% of braking electric energy, then second controller 301 control energy-accumulating power stations 3 absorb the 70% of braking electric energy, to complete the recycling of braking electric energy.

Another specific embodiment according to the present invention, if there is the operation of multiple row train 2 on Traction networks 1, and in energy storage electricity It stands after 3 absorption braking electric energy, the voltage U of Traction networks 1 continues to increase, then can pass through the non-brake train on Traction networks 1 It charges 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 ＇, traction There are N row trains on net 1, then the average value for the braking electric energy that the battery 202 of each train absorbs on Traction networks 1 is Q ＇/N.At this In the embodiment of invention, since the braking electric energy that train braking generates is very big, such as shown in table 1, it can be seen that in AW2 and It will produce the braking electric energy more than 220KW under the operating mode of AW3.At this time if absorbing these braking electricity using the on-vehicle battery of train Can, then the on-vehicle battery of train can be caused very big.Therefore in an embodiment of the present invention, for such situation using battery and Energy-accumulating power station, which combines, to be absorbed, to avoid that a large amount of battery is arranged on train.

Table 1

The embodiment of the present invention realizes system by controlling battery and energy-accumulating power station absorption braking electric energy on train as a result, The recycling and reuse of electrokinetic energy, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can be with The voltage of effective monitoring Traction networks protects system parts, improves security of system.

The concrete operating principle of the braking recovery system of the train of the embodiment of the present invention is analyzed below with reference to Fig. 3-7.

According to one embodiment of present invention, as shown in figure 3, the voltage U of the first controller 205 monitoring Traction networks, when leading The voltage U for drawing net is more than the first predetermined threshold value U1, such as when 845V, the first controller 205 controls two-way DC/DC converters 204 Into charge mode so that battery 202 absorbs braking electric energy.At this point, the side that the electric energy in circuit is indicated according to arrow shown in Fig. 3 To flowing, wherein the braking electric energy that train 2 generates feeds back to Traction networks 1, and the battery 202 of train 2 absorbs braking electric energy. In an embodiment of the present invention, it is opened when the first controller 205 controls two-way DC/DC converters 204, and controls two-way DC/DC When converter 204 enters charge mode, the first controller 205 controls two-way DC/DC converters 204 and becomes on high-tension side direct current It is changed to the direct current with the voltage matches of battery 202, the absorption braking electric energy of battery 202 is controlled to be charged to battery 202； When the first controller 205, which controls two-way DC/DC, enters discharge mode, two-way DC/DC converters 204 are for carrying battery 202 The direct current of confession is changed into the direct current with the voltage matches of Traction networks 1, is discharged battery 202 i.e. with controlling battery 202 The braking electric energy of middle storage feeds back to Traction networks 1.

According to one embodiment of present invention, as shown in figure 4, after battery 202 starts to absorb braking electric energy, Traction networks 1 voltage can decline, and the first controller 205 monitors the voltage U of Traction networks, when the voltage U of Traction networks 1 is less than the second predetermined threshold value U2, such as when 830V, the first controller 205 controls two-way DC/DC converters 204 and closes so that battery 202 stops absorbing braking Electric energy, wherein the second predetermined threshold value U2 is less than the first predetermined threshold value U1.At this point, the electric energy in circuit refers to according to arrow shown in Fig. 5 The direction flowing shown, the braking electric energy that train 2 generates feeds back to Traction networks 1, and the battery 202 of train 2 and energy-accumulating power station 3 are 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 that device 205 processed monitors Traction networks in real time is said if the voltage U of Traction networks is more than the first predetermined threshold value U1, such as 845V The bright braking electric energy fed back at this time on Traction networks 1 is superfluous, then the first controller 205 controls two-way DC/DC converters 204 and works It is charged as battery 202 in charge mode using electric energy will be braked.At this point, the braking electric energy that train 2 generates is fed back by distributor 203 It charges to battery 202 to Traction networks 1, while by two-way DC/DC converters 204, i.e., absorbing part by battery 202 makes Electrokinetic energy.Later if the voltage U of Traction networks is less than the second predetermined threshold value U2 such as 830V, illustrate to feed back to Traction networks 1 at this time On braking electric energy and Traction networks 1 on load requirement basically reached balance, then the first controller 205 controls two-way DC/DC Converter 204 is closed.At this point, control battery 202 stops absorbing braking electric energy, the braking electric energy that train 2 generates passes through distributor 203 feed back to Traction networks 1.

The embodiment of the present invention preferentially selects the battery 202 of train 2 to absorb braking electric energy, to realize the quick suction of braking electric energy It receives, to prevent the braking electric energy not consumed from the voltage U of Traction networks being caused to increase, avoid the device failure on Traction networks 1.

According to one embodiment of present invention, as shown in figure 5, second controller 301 monitors the voltage U of Traction networks, when leading The voltage U for drawing net 1 is more than the 4th predetermined threshold value U4, such as when 855V, and second controller 301 controls energy-accumulating power station 3 and charges. At this point, the electric energy in circuit is flowed according to the direction that arrow shown in Fig. 4 indicates, the braking electric energy that train 2 generates feeds back to traction Net 1, and the battery 202 of train 2 and energy-accumulating power station 3 absorb braking electric energy.In an embodiment of the present invention, when train 2 When battery starts to absorb braking electric energy, at this time since the train on Traction networks 1 is less, or the train 2 braked at this time is more, because The voltage of this Traction networks 1 can also continue to increase.When the voltage U of Traction networks 1 is more than the 4th predetermined threshold value U4, energy-accumulating power station is controlled 3 absorb electric energy from Traction networks 1 charges, and is more than maximum rated voltage to avoid the voltage of Traction networks.

Similarly, according to one embodiment of present invention, as shown in fig. 6, second controller 301 monitors the voltage of Traction networks U, when the voltage U of Traction networks is less than the 5th predetermined threshold value U5, such as when 810V, second controller 301 controls energy-accumulating power station 3 and carries out Electric discharge, wherein the 5th predetermined threshold value U5 is less than the 4th predetermined threshold value U4.What the electric energy in circuit was indicated according to arrow shown in Fig. 6 Direction is flowed, and the braking electric energy that train 2 generates feeds back to Traction networks 1, and energy-accumulating power station 3 discharges to Traction networks 1.In this hair In bright embodiment, if the more voltage that may result in Traction networks of train on Traction networks 1 declines, at this time in order to avoid traction The voltage of net is less than minimum rated voltage, and control energy-accumulating power station 3 is needed to discharge to Traction networks 1.In the tool of the present invention There are multiple energy-accumulating power stations 3, the preferential energy-accumulating power station 3 for selecting electricity high to discharge to Traction networks in body embodiment, on Traction networks 1, Such as the power of the high electric discharge of energy-accumulating power station 3 of electricity is big, the power that the low energy-accumulating power station 3 of electricity discharges is smaller, to reach storage Electric quantity balancing between energy power station 3.

According to one embodiment of present invention, after energy-accumulating power station 3 discharges to Traction networks 1, second controller 301 continues The voltage U for monitoring Traction networks, when the voltage U of Traction networks is more than the 6th predetermined threshold value U6, second controller 301 controls energy storage electricity 3 stoppings of standing are discharged, wherein the 6th predetermined threshold value U6 is more than the 5th predetermined threshold value U5.

According to one embodiment of present invention, as shown in fig. 7, second controller 301 monitors the voltage U of Traction networks, when leading When drawing the voltage U of net less than the 7th predetermined threshold value U7, second controller 301 controls energy-accumulating power station 3 and discharges to Traction networks 1, Meanwhile first controller 205 control two-way DC/DC converters 204 and enter discharge mode so that the battery 202 of train 2 is to traction Net 1 discharges, wherein the 7th predetermined threshold value U7 is less than the 5th predetermined threshold value U5.At this point, the electric energy in circuit is according to Fig. 7 institutes Show the direction flowing of arrow instruction, the braking electric energy that train 2 generates feeds back to Traction networks 1, and energy-accumulating power station 3 and battery 202 are equal It discharges Traction networks 1.In the present embodiment, if the voltage U of Traction networks 1 is too small, energy-accumulating power station 3 and train 2 are controlled Battery discharge, so that the voltage of Traction networks 1 quickly be improved.

Specifically, as shown in figure 5, if the train on Traction networks 1 is less, or the train 2 braked at this time is more, then After the battery 202 of train 2 starts to absorb braking electric energy, the voltage of Traction networks 1 continues growing, when the voltage U of Traction networks is big In the 4th predetermined threshold value U4, such as when 855V, second controller 301 control energy-accumulating power station 3 from Traction networks 1 absorb braking electric energy into Row charging, to mitigate the pressure that battery 202 absorbs braking electric energy, to avoid the voltage U of Traction networks 1 most more than Traction networks 1 Big rated voltage Un.As shown in fig. 6, if the more voltage that may result in Traction networks of train on Traction networks 1 declines, work as traction The voltage U of net 1 is less than the 5th predetermined threshold value U5, such as when 810V, second controller 301 control energy-accumulating power station 3 to Traction networks 1 into 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 The voltage U for continuing to monitor Traction networks such as when 830V, illustrates anti-at this time when the voltage U of Traction networks is more than the 6th predetermined threshold value U6 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 It can the stopping electric discharge of power station 3.

Further, it as shown in fig. 7, if the train quantity on Traction networks 1 is more, is carried out in control energy-accumulating power station 3 After electric discharge, the voltage U of Traction networks will continue to reduce, when the voltage U of Traction networks is less than the 7th predetermined threshold value U7, the second control Device 301 controls energy-accumulating power station 3 and discharges to Traction networks 1, meanwhile, the first controller 205 controls two-way DC/DC converters 204 It opens, and controls two-way DC/DC converters 204 and enter discharge mode so that the battery 202 of train 2 discharges to Traction networks 1, To which the voltage of Traction networks 1 quickly be improved.Wherein, the discharge power of battery 202 is the maximum allowable discharge power of battery 202 With the smaller value in the maximum allowable discharge power of two-way DC/DC converters 204.

According to one embodiment of present invention, energy-accumulating power station 3 can be multiple, and multiple energy-accumulating power stations 3 are according between pre-determined distance Every setting.In an embodiment of the present invention, among energy-accumulating power station 3 can be arranged AT STATION, using the braking electric energy that will be absorbed as vehicle Station is powered, and for example, the air-conditioning at station, multimedia, light etc. are powered.

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

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

According to one embodiment of present invention, when battery 202 is discharged to Traction networks 1, if the electricity of battery 202 Q is less than the second power threshold Q2, such as 50%, then the first controller 205 controls two-way DC/DC converters 204 and closes so that electricity Pond 202 stops electric discharge.In an embodiment of the present invention, electricity can reduce battery 202 after discharge, when electricity Q is less than second It when power threshold Q2, controls two-way DC/DC converters 204 and closes, stop electric discharge to control battery 202.

Specifically, the charge power of battery 202 and discharge power are restricted, and battery is controlled in the first controller 205 When 202 progress charge and discharge, pass through electricity SOC (State of Charge, lotus that coulometric detector 206 detects battery 202 in real time Electricity condition), and determine whether that battery 202 carries out charge and discharge 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, controls two-way DC/DC converters 204 at this time and closes, and stops absorbing braking electric energy to control battery 202；If The electricity of battery 202 is less than or equal to 80%, then two-way DC/DC converters 204 are kept it turning on continues to absorb system to control battery 202 Electrokinetic energy.

Further, when battery 202 is discharged to Traction networks 1, the first controller 205 judges the electricity Q of battery 202 Whether it is less than the second power threshold Q2 such as 50%, 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, is stopped with controlling battery 202 at this point, the first controller 205 controls the two-way closing of DC/DC converters 204 Only discharge.

According to one embodiment of present invention, as shown in figure 9, train 2 further includes：Mechanical brake 207, wherein machinery Brake 207 is used to carry out mechanical braking to train 2.

According to one embodiment of present invention, after battery 202 absorbs braking electric energy, when the voltage U of Traction networks is more than When third predetermined threshold value U3,205 control machinery brake 207 of the first controller, which starts cooperation electric brake 201, carries out train 2 Braking, wherein third predetermined threshold value U3 is more than the first predetermined threshold value U1.In an embodiment of the present invention, if on Traction networks 1 Train is less, or the train braked at this time is more, then after battery 202 and energy-accumulating power station 3 absorb braking electric energy, Traction networks 1 voltage U will continue to increase, and when the voltage of Traction networks 1 is more than third predetermined threshold value U3, control machinery brake 207 starts, To carry out auxiliary braking to train 2.

Specifically, after battery 202 and energy-accumulating power station 3 absorb braking electric energy, the voltage U of Traction networks will continue to increase Adding, the first controller 205 monitors the voltage U of Traction networks in real time, if the voltage U of Traction networks is more than third predetermined threshold value U3, First controller, 205 control machinery brake 207 starts, in this way, passing through mechanical braking while carrying out electric braking to train 2 Auxiliary braking is carried out to train 2, is more than maximum to avoid the voltage U of Traction networks to reduce the braking electric energy of the generation of train 2 Constant voltage, and precisely quickly parking may be implemented.

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 207 processed is opened to be braked to train 2.

According to one embodiment of present invention, as shown in Figure 10, train 2 further includes：Contactor detector 208, wherein connect Tentaculum detector 208 is connected with the first controller 205, and whether the contactor that contactor detector 208 is used to detect train disconnects, Wherein, after detecting that contactor disconnects, the first controller 205 controls two-way DC/DC converters 204 and opens, and controls double Enter discharge mode to DC/DC converters 204 so that battery 202 is powered for train 2, and is controlled train 2 and limited Power operation.

According to one embodiment of present invention, when the battery 202 of train 2 is that train 2 is powered, the control of the first controller 205 Train 2 processed limits Power operation.Wherein, the predetermined power threshold value that train 2 carries out limit Power operation can be 70KW.

Specifically, when contactor detector 208 detects that contactor disconnects, 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 out emergent traction signal, to control two-way DC/DC Converter 204 is opened, and is controlled two-way DC/DC converters 204 and entered discharge mode, at this point, battery 202 is train power supply.Together When, the discharge power that the first controller 205 controls battery 202 is less than or equal to predetermined power threshold value such as 70KW, so that train 2 is transported Row is in limit power rating.

It is difficult to avoid scheduling caused by train casts anchor on the way for the emergency driving for realizing train by battery 202 as a result, The problem of, while avoiding failure train occupation working line.

As described above, as shown in figure 11, by taking the voltage class of Traction networks is 750VDC as an example, the braking of the embodiment of the present invention The strategy of the recycling and reuse of electric energy is specific as follows：

One) recycling of electric energy is braked

According to one embodiment of present invention, in train braking, according to the voltage of Traction networks, the electricity of on-vehicle battery 202 Amount and Traction networks 1 on train 2 quantity come integrate carry out braking electric energy distribution, braking electric energy feed back to Traction networks 1 it Afterwards, consumption absorption first is carried out by other vehicles on train, superfluous braking electric energy preferentially controls battery by the first controller 205 202 are absorbed, and when on-vehicle battery 202 can not absorb or absorbability is limited, energy-accumulating power station is controlled by second controller 301 3 are 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, at this point, the first controller 205 monitors the voltage U of Traction networks in real time, if the row on Traction networks 1 Load on vehicle negligible amounts, that is, Traction networks 1 is smaller or Traction networks 1 on the train braked it is more, the electricity of Traction networks can be caused The raising of pressure, when the voltage U of Traction networks 1 is more than the first predetermined threshold value U1, such as when 845V, the battery 202 of control train 2 absorbs Brake electric energy；If the voltage U of Traction networks 1 continues to increase 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 when 855V, second controller 301 controls energy-accumulating power station 3 and absorbs braking electric energy.In the present invention Embodiment in, 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 leading The voltage U for drawing net 1 is less than or equal to the second predetermined threshold value U2, such as when 830V, controls battery 202 and energy-accumulating power station 3 stops absorbing 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, which is more than the first predetermined threshold value U1, is less than the 4th predetermined threshold value U4, 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

When the train run in the starting of train 2 or Traction networks 1 is more, the voltage U of Traction networks 1 can be reduced, and at this time will The braking electric energy that battery 202 and energy-accumulating power station 3 recycle is discharged into the electric energy loss that Traction networks 1 can be supplemented on Traction networks 1.Specifically Ground, first determines whether the electricity Q of battery 202 is 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 discharge, at this point, 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 when 810V, control energy-accumulating power station 3 discharges.Further, the first control Device 205 monitors the voltage U of Traction networks, and judges whether the voltage U of Traction networks is 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 second controller 301 controls energy-accumulating power station 3 and put Electricity, meanwhile, the first controller 205 controls two-way DC/DC converters 204 and opens, and controls two-way DC/DC converters 204 and enter Discharge mode is so that the battery 202 of train 2 discharges to Traction networks 1.

In addition to this, when power supply trouble occurs for Traction networks 1, battery 202 can be controlled and enter discharge mode, to realize row The emergency driving of vehicle 2.

In this way, the braking power consumption that absorbed in battery 202 and energy-accumulating power station 301 can be fallen, in order to 202 He of battery Energy-accumulating power station 301 continues the recycling of braking energy, saves operation cost.

To sum up, the braking recovery system of the train proposed according to embodiments of the present invention, the first controller is in train braking Control distributor and two-way DC/DC converters will brake electric energy and feed back to Traction networks, and two-way according to the control of the voltage of Traction networks DC/DC converters absorb the braking electric energy of train by battery.In addition, when train can not obtain electric energy from Traction networks When, the first controller control distributor, which disconnects and controls two-way DC/DC converters, enters discharge mode so that battery supplies for train Electricity.In embodiments of the present invention, braking electric energy is first fed back into Traction networks when train is braked, at this time if on Traction networks Train it is relatively more, then the braking electric energy of feedback can uniformly be arrived to other trains, therefore the voltage of Traction networks will not increase very much. If instead the train at this time on Traction networks is less, or the train braked at this time is more, then the voltage of Traction networks will increase, In embodiments of the present invention, it is preferentially absorbed using on-vehicle battery.It is excellent since on-vehicle battery is just mounted on train First absorbed using battery, avoid the occurrence of braking electric energy it is excessive, can not be rapidly absorbed or consume, so as to cause Traction networks The problem of electric appliance is burned out.The embodiment of the present invention absorbs braking electric energy by the battery on train, and passes through battery pair Train carries out emergency driving, to realize the recycling and reuse of braking electric energy, reduces energy waste, reduces Traction networks Load.Also, the difficult problem of scheduling, avoids failure train caused by the embodiment of the present invention can also avoid train from casting anchor on the way Occupy working line.Also, the embodiment of the present invention can protect the parts of system with the voltage of effective monitoring Traction networks, Improve security of system.

As shown in figure 12, for according to the block diagram of the train of the embodiment of the present invention.As shown in figure 12, which wraps It includes：Electric brake 201, battery 202, distributor 203,204 and first controller 205 of two-way DC/DC converters.

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 Node between electric appliance 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, which is used to brake time control in train 2, prepares electric appliance 203 and two-way DC/DC converters 204 by braking Electric energy feedback is opened to Traction networks 1, such as by distributor 203, and two-way DC/DC converters 204 are closed, to brake electricity Traction networks 1 can be directly fed back to.And first controller 205 two-way DC/DC converters 204 are controlled according to the voltage of Traction networks 1 It opens, and controls two-way DC/DC converters 204 and enter charge mode, so that battery 202 inhales the braking electric energy of train It receives.And when that can not obtain electric energy from Traction networks, the first controller 205 control distributor 203 disconnects and controls two-way DC/ DC converters 204 are opened, and are controlled two-way DC/DC converters 204 and entered discharge mode so that the battery 202 of train 2 is train 2 Power supply.

Specifically, when train 2 is braked, traction electric machine is changed into generator operating mode, electricity system from motor working condition Dynamic device 201 generates braking electric energy and braking electric energy is fed back to Traction networks.When train negligible amounts, that is, Traction networks on Traction networks 1 Load on 1 is smaller or Traction networks 1 on the train braked it is more when, the braking electric energy fed back on Traction networks 1 can be more than to lead Draw the electric energy needed for the train operation on net 1, so as to cause the raising of the voltage U of Traction networks.At this point, the first controller 205 is real When monitor the voltage U of Traction networks 1 and preferentially pass through the first controller 205 when the voltage U of Traction networks 1 is increased and control train 2 Battery 202 absorbs braking electric energy.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, and the first controller 205 also can control battery 202 to discharge to improve the voltage of Traction networks 1. In addition, the first controller 205 is additionally operable to monitor and judge whether train 2 can obtain electric energy from Traction networks 1 in real time, if train 2 can not obtain electric energy from Traction networks 1, such as Traction networks 1 break down, alternatively, when without Traction networks 1, the first control of train 2 Device 205 controls distributor 203 and disconnects, and controls two-way DC/DC converters 204 and open, and controls two-way DC/DC converters 204 Into discharge mode, so that the battery 202 of train 2 carries out emergency driving to train 2.

It should be noted that the battery 202 of train 2 can be powered for the illumination of train, air-conditioning, multimedia.In this way, Braking electric energy can be for recycling and reuse by battery 202, while the load of substation can be reduced, has saved energy Source.

It should also be noted that, battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed.Cause This, preferentially selection battery 202 absorbs braking electric energy in an embodiment of the present invention, to realize the quick absorption of braking electric energy, from And prevent the braking electric energy for not absorbed or being consumed from the voltage U of Traction networks being caused to increase, the parts of system are protected, are avoided Electric appliance damage on Traction networks 1, improves the safety of system.

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

It should be understood that when the first controller 205 controls two-way DC/DC and enters discharge mode, two-way DC/DC transformation Device 204 is used to the direct current that battery 202 provides being changed into the direct current with the voltage matches of Traction networks 1, to control battery 202 It is discharged and the braking electric energy stored in battery 202 is fed back into Traction networks 1.

According to one embodiment of present invention, after battery 202 starts to absorb braking electric energy, the voltage meeting of Traction networks 1 Decline, the first controller 205 is used to be less than the second predetermined threshold value U2 in the voltage U of Traction networks 1, such as when 830V, control is two-way DC/DC converters 204 are closed so that battery 202 stops absorbing braking electric energy, wherein it is default that the second predetermined threshold value U2 is less than first 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, illustrates to feed back at this time and lead The braking electric energy drawn on net 1 is superfluous, then the first controller 205 controls two-way DC/DC converters 204 and is operated in charge mode to incite somebody to action Electric energy is braked to charge for battery 202.At this point, the braking electric energy that train 2 generates feeds back to Traction networks 1 by distributor 203, simultaneously It is charged to battery 202 by two-way DC/DC converters 204 and partial brake electric energy is absorbed by battery 202.Later if The voltage U of Traction networks is less than the second predetermined threshold value U2 such as 830V, illustrates the braking electric energy fed back at this time on Traction networks 1 and leads Draw the load requirement on net 1 and basically reached balance, then the first controller 205 controls two-way DC/DC converters 204 and closes.This When, control battery 202 stops absorbing braking electric energy, and the braking electric energy that train 2 generates feeds back to Traction networks 1 by distributor 203.

According to one embodiment of present invention, as shown in figure 13, train 2 further includes：Coulometric detector 206, wherein electricity Detector 206 is connected with the first controller 205, and coulometric detector 206 is used to detect the electricity of battery 202, wherein works as battery 202 when absorbing braking electric energy, if the electricity Q of battery 202 is more than the first power threshold Q1, such as 80%, then and the first controller The 205 two-way DC/DC converters 204 of control are closed so that battery stops absorbing braking electric energy.In an embodiment of the present invention, battery 202 charge power and discharge power is restricted, and the electricity after absorbing braking electric energy of battery 202 can increase, if battery 202 Electricity it is excessive, the service life of battery 202 can be influenced, therefore, when electricity Q be more than the first power threshold Q1 when, control it is two-way DC/DC converters 204 are closed, and stop absorbing braking electric energy to control battery 202.

According to one embodiment of present invention, when battery 202 is discharged to Traction networks 1, if the electricity of battery 202 Q is less than the second power threshold Q2, such as 50%, then the first controller 205 controls two-way DC/DC converters 204 and closes so that electricity Pond 202 stops 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, is closed at this point, the first controller 205 controls two-way DC/DC converters 204, stops absorbing braking electricity to control battery 202 Energy；If the electricity of battery 202 be less than or equal to 80%, two-way DC/DC converters 204 keep it turning on control battery 202 after It is continuous to absorb braking electric energy.

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, at this point, the first controller 205 controls two-way DC/DC converters 204 and closes stops electric discharge to control battery 202.

According to one embodiment of present invention, as shown in figure 14, train 2 further includes：Mechanical brake 207, wherein machinery Brake 207 is used to carry out mechanical braking to train 2.

According to one embodiment of present invention, after battery 202 absorbs braking electric energy, when the voltage U of Traction networks is more than When third predetermined threshold value U3,205 control machinery brake 207 of the first controller, which starts cooperation electric brake 201, carries out train 2 Braking, wherein third predetermined threshold value U3 is more than the first predetermined threshold value U1.In an embodiment of the present invention, if on Traction networks 1 Train is less, or the train braked at this time is more, then after battery 202 absorbs braking electric energy, the voltage U meetings of Traction networks 1 It continues growing, when the voltage of Traction networks 1 is more than third predetermined threshold value U3, control machinery brake 207 starts, with to train 2 Carry out auxiliary braking.

Specifically, after battery 202 absorbs braking electric energy, the first controller 205 monitors the voltage of Traction networks in real time U, if the voltage U of Traction networks is more than third predetermined threshold value U3,205 control machinery brake 207 of the first controller starts, this Sample carries out auxiliary braking when carrying out electric braking to train 2, while by mechanical braking to train 2, to reduce the generation of train 2 Braking electric energy, to avoid Traction networks voltage U be more than maximum rated voltage, and may be implemented precisely quickly parking.

According to one embodiment of present invention, as shown in figure 15, train 2 further includes：Contactor detector 208, wherein connect Tentaculum detector 208 is connected with the first controller 205, and whether the contactor that contactor detector 208 is used to detect train 2 breaks It opens, wherein the first controller 205 is additionally operable to after contactor disconnects, and is controlled two-way DC/DC converters 204 and is entered electric discharge mould Formula is so that battery 202 is powered for train 2, and is controlled train 2 and limited Power operation.

Specifically, when contactor detector 208 detects that contactor disconnects, illustrate that train 2 is in abnormal electrical power supply shape State such as 1 failure of Traction networks powers off, and the first controller 205 judges that train 2 enters emergency driving pattern, and sends out emergent traction letter Number, it is opened with controlling two-way DC/DC converters 204, and control two-way DC/DC converters 204 and enter discharge mode, at this point, electric Pond 202 powers for train 2.Meanwhile first controller 205 control battery 202 discharge power be less than or equal to predetermined power threshold value Such as 70KW, so that train 2 operates in limit power rating.

A specific embodiment according to the present invention, train 2 can be straddle-type monorail train.

According to one embodiment of present invention, as shown in figure 16, train 2 further includes：Bogie 20 and car body 30, wherein Bogie 20 is suitable for straddle seat on track girder；Car body 30 is connected with bogie 20 and is travelled along track girder by the traction of bogie 20.

According to one embodiment of present invention, as shown in figure 16, bogie 20 includes：Bogie frame 21, travelling wheel 22, Power plant 23 and horizontal wheels 24, wherein bogie frame 21 is connected suitable for straddle seat on track girder and with car body 30；Travelling wheel 22 are pivotably mounted on bogie frame 21 and coordinate on the upper surface of track girder；Power plant 23 is mounted on bogie It is sequentially connected on framework 21 and with travelling wheel 22；Horizontal wheels 24 are pivotably mounted on bogie frame 21 and coordinate in track On the side surface of beam.

According to one embodiment of present invention, as shown in figure 16, bogie 20 further includes:Draft gear 25 and supported and suspended Device 26, wherein draft gear 25 is mounted on bogie frame 21 and is connected with car body 30；Supported and suspended device 26 is mounted on It is connected on bogie frame 21 and with car body 30.

To sum up, the train proposed according to embodiments of the present invention, the first controller prepare electric appliance and double in train braking time control Electric energy will be braked to DC/DC converters and feeds back to Traction networks, and two-way DC/DC converters are controlled according to the voltage of Traction networks and are passed through Battery absorbs the braking electric energy of train.In addition, when train can not obtain electric energy from Traction networks, the control of the first controller Distributor, which disconnects and controls two-way DC/DC converters, enters discharge mode so that battery is train power supply.In the embodiment of the present invention, Preferentially absorbed using on-vehicle battery.Since on-vehicle battery is just mounted on train, preferentially inhaled using battery It receives, it is excessive to avoid the occurrence of braking electric energy, can not be rapidly absorbed or consume, so as to cause the asking of being burned out of electric appliance of Traction networks Topic.The embodiment of the present invention absorbs braking electric energy by the battery on train, and carries out emergent drive to train by battery It is dynamic, to realize the recycling and reuse of braking electric energy, reduces energy waste, reduce the load of Traction networks.Also, this hair The difficult problem of scheduling, avoids failure train occupation working line caused by bright embodiment can also avoid train from casting anchor on the way. Also, the embodiment of the present invention can protect the parts of system with the voltage of effective monitoring Traction networks, improve system safety Property.

As shown in figure 17, for according to the flow chart of the braking recovery method of the train of the embodiment of the present invention.As shown in figure 17, This approach includes the following steps：

S10：Train is braked, and braking electric energy is generated according to brake force, and braking electric energy is fed back into Traction networks.

S20：Monitor the voltage of Traction networks.

S30：According to the voltage of Traction networks control train two-way DC/DC converters so that the battery of train to the system of train Electrokinetic energy is absorbed.

S40：Judge whether train can obtain electric energy from Traction networks.

S50：If train can not obtain electric energy from Traction networks, it is train power supply to control battery.

According to one embodiment of present invention, the braking recovery method of train further includes：It is controlled according to the voltage of Traction networks Energy-accumulating power station carries out charge or discharge.

Specifically, it when train is braked, first generates braking electric energy and braking electric energy is fed back into Traction networks.When leading Draw that the load on online train negligible amounts i.e. Traction networks is smaller or Traction networks on the train braked it is more when, feed back to Braking electric energy on Traction networks can be more than the electric energy needed for the train operation on Traction networks, so as to cause the voltage U of Traction networks It increases.At this point, the voltage U of Traction networks is monitored in real time, and when the voltage U of Traction networks is increased, the two-way DC/DC of priority acccess control train Converter is opened, and is controlled two-way DC/DC converters and entered charge mode, so that train absorbs braking electric energy by battery.Together When, energy-accumulating power station monitors the voltage U of Traction networks, if the voltage U of Traction networks is after of continuing rising after the battery of train is absorbed Height then controls energy-accumulating power station and charges from Traction networks absorption electric energy.Similarly, when the train quantity on Traction networks is more, i.e., When load on Traction networks is larger, the voltage U of Traction networks can be reduced, and energy-accumulating power station monitors the voltage U of Traction networks in real time at this time, when When the voltage U of Traction networks is reduced, priority acccess control energy-accumulating power station discharges to improve the voltage of Traction networks.If the electricity of Traction networks Pressure U continues to reduce, then can control battery to discharge to improve the voltage of Traction networks.In addition, monitoring in real time and judging that train is No to obtain electric energy from Traction networks, if train can not obtain electric energy from Traction networks, such as Traction networks break down, alternatively, When not having Traction networks, the distributor for controlling train disconnects and controls two-way DC/DC converters and opens, and controls two-way DC/DC and become Parallel operation enters discharge mode, so that the battery of train carries out emergency driving to train.

It should be noted that battery setting is ON TRAINS, braking electric energy can be quickly absorbed, due to energy-accumulating power station and train The distance between farther out, cause energy-accumulating power station absorb braking electric energy lag.Therefore, preferential selection is electric in an embodiment of the present invention Pond absorbs braking electric energy, to realize the quick absorption of braking electric energy, to prevent the braking electric energy for not absorbed or being consumed from drawing The voltage U for playing Traction networks is increased, and is protected the parts of system, is avoided the electric appliance on Traction networks from damaging, improve the peace of system Quan Xing.

Another specific embodiment according to the present invention, if it is not have on Traction networks there was only rows of vehicle operations on Traction networks There are other trains to absorb braking electric energy, and the braking electric energy that train braking generates is larger, then brakes electric energy mainly by energy-accumulating power station It absorbs, such as control battery absorbs the 30% of braking electric energy first, then controls energy-accumulating power station absorbs braking electric energy 70%, with Complete the recycling of braking electric energy.

Another specific embodiment according to the present invention, if there is multiple row train operation on Traction networks, and in energy-accumulating power station After absorbing braking electric energy, the voltage U of Traction networks continues to increase, then can be by the non-brake train on Traction networks to non-system The battery of dynamic train charges.Assuming that the braking electric energy for not absorbed or being consumed on Traction networks is Q ＇, there are N row row on Traction networks The average value of vehicle, then the braking electric energy that the battery of each train absorbs on Traction networks is Q ＇/N.

The embodiment of the present invention absorbs braking electric energy by the battery controlled on train as a result, realizes returning for braking electric energy It receives and recycles, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can be led with effective monitoring Draw the voltage of net, protect system parts, improves security of system.

According to one embodiment of present invention, battery is controlled according to the voltage of Traction networks to inhale the braking electric energy of train Receipts specifically include：Judge whether the voltage of Traction networks is more than the first predetermined threshold value, such as 845V；If the voltage of Traction networks is more than First predetermined threshold value then controls battery and absorbs braking electric energy.At this point, controlling two-way DC/DC and being by high-tension side DC power conversion With the direct current of the voltage matches of battery, braking electric energy is absorbed to charge the battery i.e. control battery.

In an embodiment of the present invention, if controlling two-way DC/DC converters enters discharge mode, battery is provided Direct current is changed into the direct current with the voltage matches of Traction networks, is discharged the braking that will be stored in battery with controlling battery Electric energy feeds back to Traction networks.

According to one embodiment of present invention, after control battery absorbs braking electric energy, the voltage of Traction networks can decline, It controls battery according to the voltage of Traction networks and the braking electric energy of train absorb and further include：Judge whether the voltage of Traction networks is small In the second predetermined threshold value, such as 830V；If the voltage of Traction networks is less than the second predetermined threshold value, controls battery and stop absorbing system Electrokinetic energy, wherein the second predetermined threshold value is less than the first predetermined threshold value.

Specifically, as shown in figure 18, it is specifically included when controlling battery and being recycled to the braking electric energy of train following Step：

S101：Train is braked, and braking electric energy is generated according to brake force, and braking electric energy is fed back into traction Net.

S102：The voltage U of monitoring Traction networks in real time.

S103：Judge whether the voltage U of Traction networks is more than the first predetermined threshold value U1 such as 845V.

If so, explanation feeds back to the braking electric energy surplus on Traction networks at this time, S104 is thened follow the steps；If not, saying The bright load requirement fed back at this time on the braking electric energy on Traction networks and Traction networks has basically reached balance, thens follow the steps S105。

S104：It controls battery and absorbs partial brake electric energy.

S105：Judge whether the voltage U of Traction networks is less than the second predetermined threshold value U2 such as 830V.

If so, thening follow the steps S106；If not, thening follow the steps S103.

S106：It controls battery to stop absorbing braking electric energy, the braking electric energy that train generates feeds back to Traction networks.

The embodiment of the present invention preferentially selects the battery of train to absorb braking electric energy, to realize the quick absorption of braking electric energy, To prevent the braking electric energy not consumed from the voltage U of Traction networks being caused to increase, avoid the device failure on Traction networks.

According to one embodiment of present invention, specific according to the control energy-accumulating power station progress charge or discharge of the voltage of Traction networks Include the following steps：Judge whether the voltage of Traction networks is more than the 4th predetermined threshold value, such as 855V；If the voltage of Traction networks is big In the 4th predetermined threshold value, then controls energy-accumulating power station and charge.In an embodiment of the present invention, it is absorbed in the battery of control train After braking electric energy, at this time since the train on Traction networks is less, or the train braked at this time is more, therefore the electricity of Traction networks Pressure can also continue to increase.When the voltage U of Traction networks is more than the 4th predetermined threshold value U4, control energy-accumulating power station absorbs electricity from Traction networks It can charge, be more than maximum rated voltage to avoid the voltage of Traction networks.

According to one embodiment of present invention, energy-accumulating power station progress charge or discharge are controlled according to the voltage of Traction networks also to wrap It includes：Judge whether the voltage of Traction networks is less than the 5th predetermined threshold value, such as 810V；If it is default that the voltage of Traction networks is less than the 5th Threshold value then controls energy-accumulating power station and discharges, wherein the 5th predetermined threshold value is less than the 4th predetermined threshold value.In the implementation of the present invention In example, if the more voltage that may result in Traction networks of train on Traction networks declines, at this time in order to avoid the voltage of Traction networks Less than minimum rated voltage, control energy-accumulating power station is needed to discharge to Traction networks.In one particular embodiment of the present invention, There are multiple energy-accumulating power stations on Traction networks, and the preferential energy-accumulating power station for selecting electricity high discharges to Traction networks, such as the storage that electricity is high The power of energy power station electric discharge is big, and the power of the low energy-accumulating power station electric discharge of electricity is smaller, to reach the electricity between energy-accumulating power station Balance.

According to one embodiment of present invention, the braking recovery method of train further includes：Judge Traction networks voltage whether More than the 6th predetermined threshold value；If the voltage of Traction networks is more than the 6th predetermined threshold value, controls energy-accumulating power station and stops electric discharge, In, the 6th predetermined threshold value is more than the 5th predetermined threshold value.

According to one embodiment of present invention, the braking recovery method of train further includes：Judge Traction networks voltage whether Less than the 7th predetermined threshold value；If the voltage of Traction networks is less than the 7th predetermined threshold value, controls energy-accumulating power station and carried out to Traction networks Electric discharge, meanwhile, control battery discharges to Traction networks, wherein the 7th predetermined threshold value is less than the 5th predetermined threshold value.In this implementation In example, if the voltage U of Traction networks is too small, the battery for controlling energy-accumulating power station and train discharges, thus by Traction networks Voltage quickly improve.

Specifically, as shown in figure 19, in an embodiment of the present invention, control energy-accumulating power station to the braking electric energy of train into Following steps are specifically included when row recycling：

S201：Monitor the voltage U of Traction networks.

S202：Judge whether the voltage U of Traction networks is more than the 4th predetermined threshold value U4 such as 855V.

If so, the braking electric energy that explanation is fed back at this time on Traction networks is excessive, S203 is thened follow the steps；If It is no, then follow the steps S204.

S203：Control energy-accumulating power station charges.

Specifically, braking electric energy is absorbed by energy-accumulating power station, the pressure that battery absorbs braking electric energy can be mitigated, to It is more than the maximum rated voltage Un of Traction networks to avoid the voltage U of Traction networks.

S204：Judge whether the voltage U of Traction networks is less than the 5th predetermined threshold value U5 such as 810V.

If so, thening follow the steps S205；If it is not, then repeating step S204.

S205：Control energy-accumulating power station discharges.

S206：Monitor the voltage U of Traction networks.

S207：Judge whether the voltage U of Traction networks gos up.

If so, thening follow the steps S208；If not, thening follow the steps S210.

S208：Judge whether the voltage U of Traction networks is more than the 6th predetermined threshold value U6 such as 830V.

If so, explanation feeds back to the braking electric energy on Traction networks at this time and the load on Traction networks has been basically reached and put down Weighing apparatus, thens follow the steps S209；If it is not, then repeating step 208.

S209：It controls energy-accumulating power station and stops electric discharge.

S210：Judge whether the voltage U of Traction networks is less than the 7th predetermined threshold value U7.

If so, thening follow the steps S211；If it is not, then repeating step S210.

S211：Control energy-accumulating power station discharges to Traction networks, meanwhile, control battery discharges to Traction networks.

According to one embodiment of present invention, the braking recovery method of train further includes：Judge Traction networks voltage whether More than third predetermined threshold value；If the voltage of Traction networks is more than third predetermined threshold value, controls train and carry out mechanical braking cooperation Implement electric braking to brake train, wherein third predetermined threshold value is more than the first predetermined threshold value.In the embodiment of the present invention In, if the train on Traction networks is less, or the train braked at this time is more, then absorbs braking electricity in battery and energy-accumulating power station After energy, the voltage U of Traction networks will continue to increase, when the voltage of Traction networks be more than third predetermined threshold value U3 when, control train into Row mechanical braking, to carry out auxiliary braking to train.

Specifically, after battery and energy-accumulating power station absorb braking electric energy, the voltage U of Traction networks will continue to increase, real When monitor the voltage U of Traction networks and control train if the voltage U of Traction networks is more than third predetermined threshold value U3 and carry out mechanical system It is dynamic, in this way, auxiliary braking is carried out to train by mechanical braking while carrying out electric braking to train, to reduce train generation Braking electric energy, to avoid Traction networks voltage U be more than maximum rated voltage, and may be implemented precisely quickly parking.

According to one embodiment of present invention, the braking recovery method of train further includes：Whether the contactor of detection train It disconnects；If detecting that contactor disconnects, it is train power supply to control battery, and controls train limit Power operation.

Specifically, when detecting that contactor disconnects, illustrate that train is in abnormal electrical power supply state, judge that train enters and answer Anxious drive mode, and emergent traction signal is sent out, it is discharged with controlling battery, at this point, battery is train power supply.Meanwhile it controlling The discharge power of battery processed is less than or equal to predetermined power threshold value such as 70KW, so that train operation is in limit power rating.

The emergency driving for realizing train by battery as a result, avoids scheduling difficulty caused by train casts anchor on the way Problem, while avoiding failure train occupation working line.

According to one embodiment of present invention, the braking recovery method of train further includes：The electricity of battery is detected, and is judged Whether the electricity of battery is more than the first power threshold, such as 80%；If the electricity of battery is more than the first power threshold, control Battery stops absorbing braking electric energy.In an embodiment of the present invention, the charge power of battery and discharge power are restricted, battery Electricity can increase after absorbing braking electric energy, if the electricity of battery is excessive, the service life of battery can be influenced, when electricity Q is big When the first power threshold Q1, control battery stops absorbing braking electric energy.

According to one embodiment of present invention, the braking recovery method of train further includes：The electricity of battery is detected, and is judged Whether the electricity of battery is less than the second power threshold, such as 50%；If the electricity of battery is less than the second power threshold, control Battery stops electric discharge.In an embodiment of the present invention, electricity can reduce battery after discharge, when electricity Q is less than the second electricity When threshold value Q2, control battery stops electric discharge.

Specifically, the charge power and discharge power of battery are limited by method shown in Figure 20.

S301：Judge whether train is in emergency driving pattern.

If it is, repeating step S301；If not, thening follow the steps S302.

S302：The electricity Q of detection battery in real time.

S303：Judge whether the electricity Q of battery is more than the first power threshold Q1 such as 80%.

If so, thening follow the steps S304；If not, thening follow the steps S305.

S304：Battery is controlled to stop absorbing braking electric energy.At this point, the maximum allowable charge power of battery is limited to 0.

S305：Judge whether the electricity Q of battery is less than the second power threshold Q2 such as 50%.

If so, thening follow the steps S306；If not, thening follow the steps S307.

S306：It controls battery and stops electric discharge.At this point, the maximum allowable discharge power of battery is limited to 0.

S307：Terminate.

It should be noted that step S303 and S304 are executed in battery charging process, S305 and S306 are in battery for step It is executed in discharge process.

As described above, as shown in figs. 21 and 22, the specific step of the recycling and reuse of the braking electric energy of the embodiment of the present invention It is rapid as follows：

One) recycling of electric energy is braked

S401：Train is braked, and braking electric energy is generated according to brake force, and braking electric energy is fed back into traction Net.

S402：Judge whether the electricity Q of battery is less than or equal to the first power threshold Q1.

If so, thening follow the steps S403；If it is not, then repeating step S402.

S403：The voltage U of monitoring Traction networks in real time.

S404：Judge whether the voltage U of Traction networks is more than the first predetermined threshold value U1 such as 845V.

If so, thening follow the steps S405；If not, thening follow the steps S406.

S405：It controls battery and absorbs braking electric energy.

S406：Control battery does not absorb braking energy.

S407：Judge whether the voltage U of Traction networks is more than the 4th predetermined threshold value U4 such as 855V.

If so, thening follow the steps S408；If not, thening follow the steps S404.

S408：It controls energy-accumulating power station and absorbs braking electric energy.

Two) recycling of electric energy is braked

S501：Judge whether the electricity Q of battery is more than or equal to the second power threshold Q2.

If so, thening follow the steps S502；If it is not, then repeating step S501.

S502：Monitor the voltage U of Traction networks.

S503：Judge whether the voltage U of Traction networks is less than the 5th predetermined threshold value U5 such as 810V.

If so, thening follow the steps S504；If not, thening follow the steps S505.

S504：Control energy-accumulating power station discharges.

S505：Energy-accumulating power station is controlled without electric discharge.

S506：Judge whether the voltage U of Traction networks is less than the 7th predetermined threshold value U7.

If so, thening follow the steps S507；If it is not, then repeating step S506.

S507：Control energy-accumulating power station discharges to Traction networks, meanwhile, control battery discharges to Traction networks.

In addition to this, when power supply trouble occurs for Traction networks, battery can be controlled and enter discharge mode, to realize train Emergency driving.

In this way, the braking power consumption that absorbed in battery and energy-accumulating power station can be fallen, in order to battery and energy-accumulating power station The recycling for continuing braking energy, saves operation cost.

To sum up, the braking recovery method of the train proposed according to embodiments of the present invention, first brakes train, and according to Brake force generates braking electric energy, and braking electric energy is fed back to Traction networks, then monitors the voltage of Traction networks, and according to Traction networks Voltage control battery the braking electric energy of train is absorbed.Further, it is also possible to monitor whether train can obtain from Traction networks Electric energy is taken, if train can not obtain electric energy from Traction networks, it is train power supply to control battery, to be carried out to train by battery Emergency driving, avoiding train from casting anchor on the way causes scheduling difficult in embodiments of the present invention, first will after being braked to train Braking electric energy feeds back to Traction networks, and judges the train quantity on Traction networks, at this time if the train on Traction networks is relatively more, The braking electric energy of feedback is uniformly arrived into other trains, the voltage of Traction networks will not increase very much., whereas if the row on Traction networks Vehicle is less, or the train braked at this time is more, then the voltage of Traction networks can be increased quickly, in an embodiment of the present invention, excellent First control on-vehicle battery absorbs braking electric energy, if the voltage that vehicle-mounted electric energy absorbs Traction networks after braking electric energy continues to increase, It then controls energy-accumulating power station and absorbs braking electric energy.Since on-vehicle battery is mounted on train, priority acccess control battery absorbs system Electrokinetic energy, it is excessive to avoid the occurrence of braking electric energy, can not be rapidly absorbed or consumes, is burned out so as to cause the electric appliance of Traction networks Problem.The embodiment of the present invention absorbs braking electric energy by the battery controlled on train, and carries out emergent drive to train by battery It is dynamic, to realize the recycling and reuse of braking electric energy, reduces energy waste, reduce the load of Traction networks.Also, this hair The difficult problem of scheduling, avoids failure train occupation working line caused by bright embodiment can also avoid train from casting anchor on the way. Also, the embodiment of the present invention can be protected system parts, improved security of system with the voltage of effective monitoring Traction networks.

In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is 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 specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims

1. a kind of braking recovery system of train, which is characterized in that including：

Traction networks；

Train, the train include：

Electric brake；

Battery；

Distributor, the distributor are connected with the electric brake, have node between the distributor and the electric brake；

One end of two-way DC/DC converters, the two-way DC/DC converters is connected with the battery, the two-way DC/DC transformation The other end of device is connected with the node；

First controller, first controller are connected with the distributor and the two-way DC/DC converters, first control Device processed will brake electric energy feedback to institute for controlling the distributor and the two-way DC/DC converters in the train braking Traction networks are stated, and the two-way DC/DC converters are controlled by the battery to the train according to the voltage of the Traction networks Braking electric energy absorbed, and can not from the Traction networks obtain electric energy when, control the distributor and disconnect and control The two-way DC/DC converters are so that the battery is the train power supply；

Coulometric detector, the coulometric detector are connected with first controller, and the coulometric detector is described for detecting The electricity of battery, wherein when the battery absorbs the braking electric energy, first controller is additionally operable in the battery When electricity is more than the first power threshold, the control two-way DC/DC converters are closed so that the battery stops absorbing the system Electrokinetic energy；

Wherein, first controller is used for when the voltage of the Traction networks is more than the first predetermined threshold value, and control is described two-way DC/DC converters enter charge mode so that the battery absorbs the braking electric energy.

2. the braking recovery system of train as described in claim 1, which is characterized in that further include：

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

3. the braking recovery system of train as described in claim 1, which is characterized in that

First controller is used to, when the voltage of the Traction networks is less than the second predetermined threshold value, control the two-way DC/DC Converter is closed so that the battery stops absorbing the braking electric energy, wherein it is default that second predetermined threshold value is less than first Threshold value.

4. the braking recovery system of train as described in claim 1, which is characterized in that the train further includes：

Mechanical brake, for carrying out mechanical braking to train.

5. the braking recovery system of train as claimed in claim 4, which is characterized in that

After the battery absorbs the braking electric energy, first controller is additionally operable to be more than in the voltage of the Traction networks When third predetermined threshold value, controls the mechanical brake startup and the electric brake is coordinated to brake the train, wherein The third predetermined threshold value is more than first predetermined threshold value.

6. the braking recovery system of train as claimed in claim 2, which is characterized in that

The second controller is additionally operable to, when the voltage of the Traction networks is more than four predetermined threshold values, control the energy-accumulating power station It charges.

7. the braking recovery system of train as claimed in claim 6, which is characterized in that

The second controller is additionally operable to, when the voltage of the Traction networks is less than five predetermined threshold values, control the energy-accumulating power station It discharges, wherein the 5th predetermined threshold value is less than the 4th predetermined threshold value.

8. the braking recovery system of train as claimed in claim 7, which is characterized in that in the energy-accumulating power station to the traction After net electric discharge, the second controller is additionally operable to when the voltage of the Traction networks is more than six predetermined threshold values, described in control Energy-accumulating power station stops electric discharge, wherein the 6th predetermined threshold value is more than the 5th predetermined threshold value.

9. the braking recovery system of train as claimed in claim 6, which is characterized in that

When the voltage of the Traction networks is less than seven predetermined threshold values, the second controller controls the energy-accumulating power station to described Traction networks discharge, meanwhile, first controller control control the two-way DC/DC converters enter discharge mode so that The battery of the train discharges to the Traction networks, wherein the 7th predetermined threshold value is less than the 5th predetermined threshold value.

10. the braking recovery system of train as claimed in claim 9, which is characterized in that when the battery is to the Traction networks When being discharged, first controller is additionally operable to when the electricity of the battery is less than the second power threshold, is controlled described double It is closed to DC/DC converters so that the battery stops electric discharge.

11. the braking recovery system of train as described in claim 1, which is characterized in that the train further includes：

Contactor detector, the contactor detector are connected with first controller, and the contactor detector is for examining Whether the contactor for surveying the train disconnects, wherein first controller is additionally operable to after the contactor disconnects, control The distributor is closed, and is controlled the two-way DC/DC converters and carried out discharge mode so that the battery supplies for the train Electricity, and control the train limit Power operation.

12. the braking recovery system of train as claimed in claim 2, which is characterized in that the energy-accumulating power station be it is multiple, it is described Multiple energy-accumulating power stations are arranged according to pre-determined distance interval.

13. the braking recovery system of train as claimed in claim 12, which is characterized in that two institutes are arranged in per 3-6 kilometers Energy-accumulating power station is stated, the power of the energy-accumulating power station is 0.5-2MW.

14. a kind of train, which is characterized in that including：

Electric brake；

Battery；

First controller, first controller are connected with the distributor and the two-way DC/DC converters, first control Device processed will brake electric energy feedback to institute for controlling the distributor and the two-way DC/DC converters in the train braking Traction networks are stated, and the two-way DC/DC converters are controlled by the battery to the row according to the voltage of the Traction networks The braking electric energy of vehicle is absorbed, and when that can not obtain electric energy from the Traction networks, is controlled the distributor and disconnected and control The two-way DC/DC converters are made so that the battery is the train power supply；

15. train as claimed in claim 14, which is characterized in that

16. train as claimed in claim 14, which is characterized in that further include：

Mechanical brake, for carrying out mechanical braking to train.

17. train as claimed in claim 16, which is characterized in that

18. train as claimed in claim 14, which is characterized in that when the battery is discharged to the Traction networks, institute The first controller is stated to be additionally operable to, when the electricity of the battery is less than the second power threshold, control the two-way DC/DC converters It closes so that the battery stops electric discharge.

19. train as claimed in claim 14, which is characterized in that further include：

Contactor detector, the contactor detector are connected with first controller, and the contactor detector is for examining Whether the contactor for surveying the train disconnects, wherein first controller is additionally operable to detecting that the contactor disconnects it Afterwards, it controls the distributor to close, and controls the two-way DC/DC converters and carry out discharge mode so that the battery is described Train power supply, and control the train limit Power operation.

20. train as claimed in claim 14, which is characterized in that the train is straddle-type monorail train.

21. train as claimed in claim 20, which is characterized in that further include：

Bogie, the bogie are suitable for straddle seat on track girder；

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

22. train as claimed in claim 21, which is characterized in that the bogie includes；

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

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

Power plant, the power plant are mounted on the bogie frame and are sequentially connected with the travelling wheel；

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

23. train as claimed in claim 22, which is characterized in that the bogie further includes:

Draft gear, the draft gear are mounted on the bogie frame and are connected with the car body；

Supported and suspended device, the supported and suspended device are mounted on the bogie frame and are connected with the car body.

24. a kind of braking recovery method of train, which is characterized in that include the following steps：

The train is braked, and braking electric energy is generated according to brake force, and the braking electric energy is fed back into Traction networks；

Monitor the voltage of the Traction networks；

The battery that the train is controlled according to the voltage of the Traction networks absorbs the braking electric energy of the train；

Judge whether the train can obtain electric energy from Traction networks；

If the train can not obtain electric energy from Traction networks, it is the train power supply to control the battery；

Wherein, the braking recovery method of the train further includes：

Judge whether the voltage of the Traction networks is more than the first predetermined threshold value；

If the voltage of the Traction networks is more than first predetermined threshold value, controls the battery and absorb the braking electric energy；

Wherein, the braking recovery method of the train further includes：

The electricity of the battery is detected, and judges whether the electricity of the battery is more than the first power threshold；

If the electricity of the battery is more than first power threshold, controls the battery and stop absorbing the braking electricity Energy.

25. the braking recovery method of train as claimed in claim 24, which is characterized in that further include：

Energy-accumulating power station, which is controlled, according to the voltage of the Traction networks carries out charge or discharge.

26. the braking recovery method of train as claimed in claim 24, which is characterized in that further include：

Judge whether the voltage of the Traction networks is less than the second predetermined threshold value；

If the voltage of the Traction networks is less than second predetermined threshold value, controls the battery and stop absorbing the braking electricity It can, wherein second predetermined threshold value is less than the first predetermined threshold value.

27. the braking recovery method of train as claimed in claim 25, which is characterized in that further include：

Judge whether the voltage of the Traction networks is more than third predetermined threshold value；

If the voltage of the Traction networks is more than the third predetermined threshold value, controls train and carry out mechanical braking cooperation implementation electricity The train is braked in braking, wherein the third predetermined threshold value is more than first predetermined threshold value.

28. the braking recovery method of train as claimed in claim 24, which is characterized in that further include：

Judge whether the voltage of the Traction networks is more than the 4th predetermined threshold value；

If the voltage of the Traction networks is more than the 4th predetermined threshold value, controls the energy-accumulating power station and charge.

29. the braking recovery method of train as claimed in claim 28, which is characterized in that further include：

Judge whether the voltage of the Traction networks is less than the 5th predetermined threshold value；

If the voltage of the Traction networks is less than the 5th predetermined threshold value, controls the energy-accumulating power station and discharge, wherein is described 5th predetermined threshold value is less than the 4th predetermined threshold value.

30. the braking recovery method of train as claimed in claim 29, which is characterized in that further include：

Judge whether the voltage of the Traction networks is more than the 6th predetermined threshold value；

If the voltage of the Traction networks is more than the 6th predetermined threshold value, controls the energy-accumulating power station and stop electric discharge, wherein is described 6th predetermined threshold value is more than the 5th predetermined threshold value.

31. the braking recovery method of train as claimed in claim 29, which is characterized in that further include：

Judge whether the voltage of the Traction networks is less than the 7th predetermined threshold value；

If the voltage of the Traction networks is less than the 7th predetermined threshold value, controls the energy-accumulating power station and put to the Traction networks Electricity, meanwhile, it controls the battery and discharges to the Traction networks, wherein it is pre- that the 7th predetermined threshold value is less than the described 5th If threshold value.

32. the braking recovery method of train as claimed in claim 31, which is characterized in that further include：

The electricity of the battery is detected, and judges whether the electricity of the battery is less than the second power threshold；

If the electricity of the battery is less than second power threshold, controls the battery and stop electric discharge.

33. the braking recovery method of train as claimed in claim 24, which is characterized in that further include：

Whether the contactor of detection train disconnects；

If detecting that the contactor disconnects, it is the train power supply to control the battery, and controls the train limit work( Rate is run.