CN106809024B - The braking recovery system and method and train of train - Google Patents

The braking recovery system and method and train of train Download PDF

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Publication number
CN106809024B
CN106809024B CN201610839994.5A CN201610839994A CN106809024B CN 106809024 B CN106809024 B CN 106809024B CN 201610839994 A CN201610839994 A CN 201610839994A CN 106809024 B CN106809024 B CN 106809024B
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China
Prior art keywords
train
traction networks
braking
voltage
converter
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CN201610839994.5A
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CN106809024A (en
Inventor
李道林
罗文刚
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BYD Co Ltd
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BYD Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Abstract

The invention discloses the braking recovery system and method and train of a kind of train, which includes: Traction networks, train and energy-accumulating power station；Train includes: electric brake；Battery；Charging capacitor；Distributor, distributor are connected with electric brake, have node between distributor and electric brake；First two-way DC/DC converter, one end are connected with battery, and the other end is connected with node；Second two-way DC/DC converter, one end are connected with charging capacitor, and the other end is connected with node；First controller is used to control battery according to the voltage of Traction networks in train braking or charging capacitor absorbs the braking electric energy of train；Energy-accumulating power station is connected with Traction networks, and the second controller of energy-accumulating power station controls energy-accumulating power station according to the voltage of Traction networks and carries out charge or discharge.The present invention controls the charge and discharge of battery, charging capacitor and energy-accumulating power station by the voltage of monitoring Traction networks, realizes the recycling and reuse of braking electric energy, has effectively saved the energy.

Description

The braking recovery system and method and train of train
Technical field
The present invention relates to technical field of rail traffic, in particular 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 technique
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 can generate 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.Related skill existing at present Art discloses, and battery is arranged among train and recycles 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 also will increase unnecessary cost.
Therefore, the relevant technologies needs improve.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the 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.Yet another object of the invention is that proposing a kind of train Braking recovery method.
In order to achieve the above objectives, the braking recovery system for a kind of train that one aspect of the present invention embodiment proposes, comprising: lead Draw net, train and energy-accumulating power station, the train includes: electric brake；Battery；Charging capacitor；Distributor, the distributor and institute It states electric brake to be connected, there is node between the distributor and the electric brake；First two-way DC/DC converter, it is described One end of first two-way DC/DC converter is connected with the battery, the other end of the first two-way DC/DC converter with it is described Node is connected；One end of second two-way DC/DC converter, the second two-way DC/DC converter is connected with the charging capacitor, The other end of the second two-way DC/DC converter is connected with the node；First controller, first controller with it is described Distributor, the first two-way DC/DC converter are connected with the described second two-way DC/DC converter, and first controller is used Become in controlling the distributor, the first two-way DC/DC converter and the second two-way DC/DC in the train braking Parallel operation controls the first two-way DC/DC by braking electric energy feedback to the Traction networks, and according to the voltage of the Traction networks Converter and the second two-way DC/DC converter, to select the braking of the battery or the charging capacitor to the train Electric energy is absorbed；Energy-accumulating power station, the energy-accumulating power station are connected with the Traction networks, and the energy-accumulating power station includes the second control Device, the second controller, which is used to be controlled according to the voltage of the Traction networks, carries out charge or discharge.
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, the first two-way DC/DC converter and the second two-way DC/DC converter feed back to Traction networks for electric energy is braked, first with electricity Pond or charging capacitor absorb braking electric energy, when the voltage of Traction networks continues to increase, energy-accumulating power station are recycled to be inhaled It receives.In addition, energy-accumulating power station can also discharge to Traction networks according to the voltage of Traction networks, to avoid the voltage mistake of Traction networks It is low, maintain the normal work of Traction networks.In embodiments of the present invention, first braking electric energy is fed back to when train is braked and is led Draw net, at this time if the train on Traction networks is relatively more, the braking electric energy of feedback can uniformly be arrived to other trains, therefore draw The voltage of net 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, and in embodiments of the present invention, preferentially be absorbed using on-vehicle battery and charging capacitor, if The voltage of Traction networks continues to increase after on-vehicle battery and charging capacitor absorb, then reuses energy-accumulating power station and absorbed.By It is just mounted on train in on-vehicle battery, therefore is preferentially absorbed using battery, it is excessive to avoid the occurrence of braking electric energy, can not The problem of being rapidly absorbed or consume, being burned out so as to cause the electric appliance of Traction networks.The embodiment of the present invention passes through the electricity on train Pond, charging capacitor and energy-accumulating power station absorb braking electric energy, to realize the recycling and reuse of braking electric energy, reduce Energy waste, reduces the load of Traction networks.Also, the embodiment of the present invention can be protected with the voltage of effective monitoring Traction networks The components of system improve the safety of system.
According to one embodiment of present invention, first controller is used to be greater than first in the voltage of the Traction networks pre- If when threshold value, controlling the first two-way DC/DC converter by braking electric energy described in the battery receptacle as the battery Charging.
According to one embodiment of present invention, first controller is used for pre- less than second in the voltage of the Traction networks If when threshold value, controlling the first two-way DC/DC converter and closing so that the battery stops absorbing the braking electric energy, In, second preset threshold is less than first preset threshold.
According to one embodiment of present invention, first controller is used to be greater than third in the voltage of the Traction networks pre- If when threshold value, controlling the second two-way DC/DC converter by the charging capacitor and receiving the braking electric energy to be described Charging capacitor charging, wherein the third predetermined threshold value is greater than first preset threshold.
According to one embodiment of present invention, the train further include: mechanical brake, for carrying out mechanical system to train It is dynamic.
According to one embodiment of present invention, first controller is used to be greater than the 4th in the voltage of the Traction networks pre- If when threshold value, controlling mechanical brake starting cooperation and implementing electric brake and braked to the train, wherein described the Four preset thresholds are greater than first preset threshold.
According to one embodiment of present invention, the second controller is used to be greater than the 5th in the voltage of the Traction networks pre- If when threshold value, controlling the energy-accumulating power station and charging.
According to one embodiment of present invention, the second controller is used for pre- less than the 6th in the voltage of the Traction networks If when threshold value, controlling the energy-accumulating power station and discharging, wherein the 6th preset threshold is less than the 5th preset threshold.
According to one embodiment of present invention, when the voltage of the Traction networks is less than seven preset thresholds, described second Controller controls the energy-accumulating power station and discharges to the Traction networks, meanwhile, first controller controls the two-way DC/ DC converter enters discharge mode so that the battery of the train discharges to the Traction networks, wherein the described 7th is default Threshold value is less than the 6th preset threshold.
According to one embodiment of present invention, the train further include: 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 also used to after the contactor disconnects, and is controlled the distributor and is closed, and controls the described first two-way DC/ DC converter enters 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 setting.
According to one embodiment of present invention, two energy-accumulating power stations, the energy-accumulating power station can be set in every 3-6 kilometers Power can be 0.5-2MW.
In order to achieve the above objectives, a kind of train that another aspect of the present invention embodiment proposes, comprising: electric brake；Battery； Charging capacitor；Distributor, the distributor are connected with the electric brake, have between the distributor and the electric brake Node；One end of first two-way DC/DC converter, the first two-way DC/DC converter is connected with the battery, and described first The other end of two-way DC/DC converter is connected with the node；Second two-way DC/DC converter, the second two-way DC/DC become One end of parallel operation is connected with the charging capacitor, and the other end of the second two-way DC/DC converter is connected with the node；The One controller, first controller and the distributor, the first two-way DC/DC converter and the second two-way DC/ DC converter is connected, and first controller is for controlling the distributor, the first two-way DC/ in the train braking DC converter and the second two-way DC/DC converter will brake electric energy feedback to the Traction networks, and according to the traction The voltage of net controls the distributor, the first two-way DC/DC converter and the second two-way DC/DC converter, with choosing The battery or the charging capacitor is selected to absorb the braking electric energy of the train.
The train proposed according to embodiments of the present invention, when being braked, the first controller is prepared in train braking time control Electric appliance, the first two-way DC/DC converter and the second two-way DC/DC converter feed back to Traction networks for electric energy is braked, and utilize battery Or charging capacitor absorbs braking electric energy.In embodiments of the present invention, will first to brake electric energy when train is braked anti- Traction networks are fed to, at this time if the train on Traction networks is relatively more, the braking electric energy of feedback can uniformly be arrived other trains, because The voltage of this 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 More, then the voltage of Traction networks will increase, and in embodiments of the present invention, preferentially be inhaled using on-vehicle battery and charging capacitor It receives.It since on-vehicle battery is just mounted on train, is preferentially absorbed using battery, avoids the occurrence of braking electric energy mistake Greatly, the problem of can not being rapidly absorbed or consume, being burned out so as to cause the electric appliance of Traction networks.The embodiment of the present invention passes through train On battery and charging capacitor to braking electric energy absorb, thus realize braking electric energy recycling and reuse, reduce Energy waste reduces the load of Traction networks.Also, the embodiment of the present invention can protect system with the voltage of effective monitoring Traction networks The components of system improve the safety of system.
According to one embodiment of present invention, first controller is used to be greater than first in the voltage of the Traction networks pre- If when threshold value, controlling the first two-way DC/DC converter and entering charge mode so as to brake electric energy described in the battery receptacle Think the battery charging.
According to one embodiment of present invention, first controller is used for pre- less than second in the voltage of the Traction networks If when threshold value, controlling the first two-way DC/DC converter and closing so that the battery stops absorbing the braking electric energy, In, second preset threshold is less than first preset threshold.
According to one embodiment of present invention, first controller is used to be greater than third in the voltage of the Traction networks pre- If when threshold value, controlling the second two-way DC/DC converter and entering charge mode so that the charging capacitor receives the braking Electric energy is charging capacitor charging, wherein the third predetermined threshold value is greater than first preset threshold.
According to one embodiment of present invention, the train further include: mechanical brake, for carrying out mechanical system to train It is dynamic.
According to one embodiment of present invention, first controller is used to be greater than the 4th in the voltage of the Traction networks pre- If when threshold value, controlling mechanical brake starting cooperation and implementing electric brake and braked to the train, wherein described the Four preset thresholds are greater than first preset threshold.
According to one embodiment of present invention, the train further include: 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 also used to after detecting that the contactor disconnects, and is controlled the distributor and is closed, and controls described first Two-way DC/DC converter enters discharge mode so that the battery is the train power supply, and controls the train limit power fortune Row.
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 includes: bogie, and the bogie is suitable for straddle seat in track girder On；Car body, the car body are connected with the bogie and are travelled by bogie traction along the track girder.
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 device, the power device 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 cooperate On the side surface of the track girder.
According to one embodiment of present invention, the bogie further include: traction device, the traction device 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 present invention embodiment proposes, including Following steps: braking the train, and generates braking electric energy 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；Select battery or charging capacitor to the braking electricity according to the voltage of the Traction networks It can be carried out absorption；Energy-accumulating power station, which is controlled, according to the voltage of the Traction networks carries out charge or discharge.
The braking recovery method of the train proposed according to embodiments of the present invention, first brakes train, and according to system 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 Traction networks Voltage control battery or rechargeable battery absorb the braking electric energy of train, if the voltage of Traction networks continues to increase, then It is absorbed using energy-accumulating power station.It discharges further, it is also possible to control energy-accumulating power station according to the voltage of Traction networks Traction networks, To avoid the brownout of Traction networks, the normal work of Traction networks is maintained.In embodiments of the present invention, train is braked Braking electric energy is first fed back into Traction networks afterwards, it, can be by the braking electric energy of feedback at this time if the train on Traction networks is relatively more Other trains are uniformly arrived, 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 that person brakes at this time is more, then the voltage of Traction networks will increase, and in embodiments of the present invention, preferentially uses on-vehicle battery It is absorbed with charging capacitor, if the voltage of Traction networks continues to increase after on-vehicle battery and charging capacitor absorb, then It is absorbed using energy-accumulating power station.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 battery, charging capacitor and the energy-accumulating power station on train, to realize braking The recycling and reuse of electric energy, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can also have The voltage of effect monitoring Traction networks, protects the components of system, improves the safety of system.
According to one embodiment of present invention, described to select battery or charging capacitor to institute according to the voltage of the Traction networks State braking electric energy carry out absorb specifically include: judge whether the voltage of the Traction networks is greater than the first preset threshold；If described The voltage of Traction networks is greater than first preset threshold, then controls braking electric energy described in the battery receptacle to fill for the battery Electricity.
According to one embodiment of present invention, the braking recovery method of the train further include: judge the Traction networks Voltage is less than the second preset threshold；If the voltage of the Traction networks is less than second preset threshold, the battery is controlled Stop absorbing the braking electric energy, wherein second preset threshold is less than first preset threshold.
According to one embodiment of present invention, the braking recovery method of the train further include: judge the Traction networks Whether voltage is greater than third predetermined threshold value；If the voltage of the Traction networks is greater than third predetermined threshold value, the charging is controlled Capacitor receives the braking electric energy as charging capacitor charging, wherein it is pre- that the third predetermined threshold value is greater than described first If threshold value.
According to one embodiment of present invention, the braking recovery method of the train further include: judge the Traction networks Whether voltage is greater than the 4th preset threshold；If the voltage of the Traction networks is greater than the 4th preset threshold, train progress is controlled Mechanical braking cooperation is implemented electric braking and is braked to the train, wherein it is pre- that the 4th preset threshold is greater than described first If threshold value.
According to one embodiment of present invention, the braking recovery method of the train further include: judge the Traction networks Whether voltage is greater than the 5th preset threshold；If the voltage of the Traction networks is greater than the 5th preset threshold, the energy storage is controlled It charges in power station.
According to one embodiment of present invention, the braking recovery method of the train further include: judge the Traction networks Whether voltage is less than the 6th preset threshold；If the voltage of the Traction networks be less than the 6th preset threshold, control described in Energy-accumulating power station discharges, wherein the 6th preset threshold is less than the 5th preset threshold.
According to one embodiment of present invention, the braking recovery method of the train further include: judge the Traction networks Whether voltage is less than the 7th preset threshold；If the voltage of the Traction networks controls the energy storage less than the 7th preset threshold Power station is discharged to the Traction networks, meanwhile, it controls the battery and discharges to the Traction networks, wherein the described 7th Preset threshold is less than the 6th preset threshold.
According to one embodiment of present invention, the braking recovery method of the train further include: detect the contactor of train Whether disconnect；If detecting that the contactor disconnects, controlling the battery is the train power supply, and controls the train Limit Power operation.
Detailed description of the invention
Fig. 1 is the block diagram according to the braking recovery device of the train of the embodiment of the present invention；
Fig. 2 is the circuit diagram according to the braking recovery device of the train of one embodiment of the invention；
Fig. 3 is the circuit diagram according to the braking recovery device of the train of a specific embodiment of the invention, wherein is led The voltage for drawing net is greater than the first preset threshold；
Fig. 4 is the circuit diagram according to the braking recovery device of the train of another specific embodiment of the invention, wherein The voltage of Traction networks is greater than third predetermined threshold value；
Fig. 5 is the circuit diagram according to the braking recovery device of the train of another specific embodiment of the invention, wherein The voltage of Traction networks is less than the 6th preset threshold；
Fig. 6 is the block diagram according to the braking recovery system of the train of a specific embodiment of the invention；
Fig. 7 is the block diagram according to the braking recovery system of the train of another specific embodiment of the invention；
Fig. 8 is the block diagram according to the train of the embodiment of the present invention；
Fig. 9 is the block diagram according to the train of a specific embodiment of the invention；
Figure 10 is the block diagram according to the train of another specific embodiment of the invention；
Figure 11 is the structural schematic diagram according to the train of a specific embodiment of the invention；
Figure 12 is the flow chart according to the braking recovery method of the train of the embodiment of the present invention；
Figure 13 is the flow chart according to the braking recovery method of the train of a specific embodiment of the invention；And
Figure 14 is the flow chart according to the braking recovery method of the train of another specific embodiment of the invention.
Appended drawing reference:
Traction networks 1, train 2 and energy-accumulating power station 3；
Electric brake 201, battery 202, distributor 203, the first two-way DC/DC converter 204, charging capacitor 205, second Two-way DC/DC converter 206 and the first controller 207；
Mechanical brake 208 and contactor detector 209；Second controller 301；
Bogie 20 and car body 30；
Bogie frame 21, travelling wheel 22, power device 23 and horizontal wheels 24；
Traction device 25 and supported and suspended device 26.
Specific embodiment
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 is used to explain the present invention, and is not considered as limiting the invention.
As shown in Figure 1, 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 institute Show, the braking recovery system of the train includes: Traction networks 1, multiple trains 2 for being connected on Traction networks 1, and setting is being drawn Multiple energy-accumulating power stations 3 on net 1.Wherein, Traction networks 1 provide direct current to multiple trains 2, and train 2 is by electricity getting device from leading Draw and takes electricity among net.In one embodiment of the invention, train 2 is straddle-type monorail train.In an embodiment of the present invention It can be recycled by the braking electric energy that the battery of train 2, charging capacitor and/or energy-accumulating power station 3 generate train 2.For For train 2, the braking electric energy of itself generation not only can be absorbed, the braking electric energy of other trains 2 generation also can be absorbed.By In train 2 when to 1 regenerative braking electric energy of Traction networks, the voltage of Traction networks 1 can be increased, therefore train 2 and energy-accumulating power station 3 can be with The voltage of Traction networks 1 is monitored.When Traction networks 1 voltage increase when, can by the battery of train 2, charging capacitor or Energy-accumulating power station 3 is absorbed, so that the voltage for preventing Traction networks 1 is more than maximum rated voltage, and is broken down.It is specific to absorb Process will describe in detail below in an example.In an embodiment of the present invention, the braking that the battery of train 2 absorbs Electric energy can be used for illumination, air-conditioning, the multimedia electricity consumption of train 2.In other embodiments of the invention, the battery of train 2 The braking electric energy of absorption can be also used for the emergency driving of train 2, such as when train 2 can not such as be led from the acquisition electric energy of Traction networks 1 Draw the failure of net 1, alternatively, train 2 can be switched to battery driving when without Traction networks 1.In an embodiment of the present invention, Energy-accumulating power station 3 can be set among AT STATION, and the braking electric energy of absorption is powered for station, for example, the air-conditioning at station, Multimedia, light etc. are powered.In an embodiment of the present invention, energy-accumulating power station 3 is arranged according to pre-determined distance interval, such as often Two energy-accumulating power stations 3 are set in 3-6 kilometers, and the power of each energy-accumulating power station 3 is 0.5-2MW.Certain those skilled in the art can According to the specific operating environment of train 2, the quantity and power of suitable energy-accumulating power station 3 are selected.
As shown in Fig. 2, for according to the block diagram of the braking recovery system of the train of one embodiment of the invention, in order to Convenient for description, an energy-accumulating power station is illustrated only in this embodiment.Train 2 includes: electric brake 201, battery 202, distribution Device 203, the first two-way DC/DC converter 204, charging capacitor 205, the second two-way DC/DC converter 206 and the first controller 207。
Wherein, distribution 203 is connected with Traction networks 1 and electric brake 201, has between distributor 203 and electric brake 201 Node；One end of first two-way DC/DC converter 204 is connected with battery 204, the other end of the first two-way DC/DC converter 204 Node between distributor 203 and electric brake 201 is connected.One end of second two-way DC/DC converter 206 and charging capacitor 205 are connected, and the other end of the second two-way DC/DC converter 206 is connected with the node between distributor 203 and electric brake 201. First controller 207 is connected with distributor 203, the first two-way DC/DC converter 204 and the second two-way DC/DC converter 206, First controller 207 is used to prepare electric appliance 203, the first two-way DC/DC converter 204 and second in train braking time control two-way DC/DC converter 206 controls the first two-way DC/DC by braking electric energy feedback to Traction networks 1, and according to the voltage U of Traction networks 1 Converter 204 and the second two-way DC/DC converter 206 are opened, and it is two-way to control the first two-way DC/DC converter 204 and second DC/DC converter 206 enters charge mode, to select battery 202 or charging capacitor 205 to inhale the braking electric energy of train 2 It receives, such as the two-way DC/DC converter 204 of the first controller 207 control first is opened, and controls the first two-way DC/DC converter 204 enter charge mode, so that battery 202 is absorbed, the two-way DC/DC converter 206 of control second is opened, and controls second Two-way DC/DC converter 206 enters charge mode, so that charging capacitor 205 is absorbed.In an embodiment of the present invention, it stores up Energy power station 3 is connected with Traction networks 1, and energy-accumulating power station 3 includes second controller 301, and second controller 301 is used for according to Traction networks 1 Voltage U control energy-accumulating power station 3 carry out charge or discharge.In an embodiment of the present invention, as shown in Fig. 2, energy-accumulating power station 3 can wrap Multiple 160KW-80KWh modules are included, the anode of multiple 160KW-80KWh modules is connected, and just by positive cabinet and Traction networks 1 Extremely it is connected, the cathode of multiple 160KW-80KWh modules is connected, and is connected by cathode cabinet with the cathode of Traction networks 1.
Specifically, when train 2 is braked, traction electric machine is changed into generator operating condition, 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, feedback to the braking electric energy on Traction networks 1 can be more than to lead Electric energy needed for drawing 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 207 is real When monitor the voltage U of Traction networks 1, it is preferential that train 2 is controlled by the first controller 207 when the voltage U of Traction networks 1 is increased First two-way DC/DC converter 204 is opened, and is controlled the first two-way DC/DC converter 204 and entered charge mode, so that battery 202 absorb braking electric energy, if the voltage U of Traction networks 1 continues to increase, the first controller 207 controls second pair of train again It is opened to DC/DC converter 206, and controls the second two-way DC/DC converter 206 and enter charge mode, so that charging capacitor 205 Absorb braking electric energy.Meanwhile the second controller 301 of energy-accumulating power station 3 monitors the voltage U of Traction networks, if in the battery of train 2 202 and after charging capacitor 205 absorbed, the voltage U of Traction networks 1 continues to increase, then second controller 301 controls energy storage electricity Stand 3 from Traction networks 1 absorb electric energy charge.Similarly, when the train quantity on Traction networks 1 is more, i.e., negative on Traction networks 1 When carrying larger, the voltage U of Traction networks 1 can be reduced, at this time the electricity of the 301 real-time monitoring Traction networks 1 of second controller of energy-accumulating power station 3 U is pressed, when the voltage U of Traction networks 1 is reduced, energy-accumulating power station 3 is preferentially controlled by second controller 301 and is discharged to improve and lead Draw the voltage of net 1.If the voltage U of Traction networks 1 continues to reduce, the first controller 207 also can control battery 202 to discharge To improve the voltage of Traction networks 1.
In an embodiment of the present invention, itself charging and discharging of charging capacitor 205 is rapid, and train 2 can be absorbed and brake moment The biggish braking electric energy generated, and the braking limited energy that the battery 202 of train 2 can absorb in a short time, if column The braking electric energy that the braking of vehicle 2 generates is larger, then the first controller 207 control charging capacitor 205 is absorbed.
A specific example according to the present invention, battery 202 can be iron cell or ferric phosphate lithium cell.
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 for the illumination for station, air-conditioning, multimedia etc. and is supplied 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 from not inhaled It receives or the braking electric energy of consumption causes the voltage U of Traction networks to increase, protect the components of system, avoid on Traction networks 1 Electric appliance damage, improves the safety of system.
Another specific embodiment according to the present invention, if there was only rows of operations of vehicle 2 on Traction networks 1 is 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 207 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 having 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 being absorbed or consuming on Traction networks 1 is Q ', traction There is N column train 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 The braking electric energy greater than 220KW can be generated under the operating condition of AW3.At this time if absorbing these braking electricity using the on-vehicle battery of train Can, then the on-vehicle battery that will lead to train is 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 battery and energy-accumulating power station absorption braking electric energy on control 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.
According to one embodiment of present invention, energy-accumulating power station 3 can be to be multiple, and multiple energy-accumulating power stations 3 are according between pre-determined distance Every setting.In an embodiment of the present invention, energy-accumulating power station 3 can be set among 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, two energy-accumulating power stations 3, the power of energy-accumulating power station 3 can be set in every 3-6 kilometers It 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.
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. 3-5.
According to one embodiment of present invention, as shown in figure 3, being fed when train 2 starts braking to Traction networks 1, wherein First controller 207 is greater than the first preset threshold U1 in the voltage U for judging Traction networks 1, such as when 845V, and control first is two-way DC/DC converter 204 is opened, and is controlled the first two-way DC/DC converter 204 and entered charge mode, so that battery 202 receives system Electrokinetic energy is the charging of battery 202.In an embodiment of the present invention, the braking electric energy of train 2 first feeds back to Traction networks, will lead to The voltage U of Traction networks 1 is increased, the voltage U of real-time detection Traction networks 1, when the voltage U of Traction networks 1 is greater than the first preset threshold U1 When, the first controller 207 the first two-way DC/DC converter 204 of control is opened, and control the first two-way DC/DC converter 204 into Enter charge mode, and control the second two-way DC/DC converter 206 and close, so that battery 202 absorbs braking electric energy.At this point, circuit In the direction that indicates according to arrow shown in Fig. 3 of electric energy flow, 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, when the control first of the first controller 207 is two-way When DC/DC converter 204 enters charge mode, on high-tension side DC power conversion is and electricity by the first two-way DC/DC converter 204 The direct current of the voltage matches in pond 202 controls the absorption braking electric energy of battery 202 to be charged to battery 202.
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 207, less than the second preset threshold U2, such as when 830V, control first in the voltage U for judge Traction networks 1 Two-way DC/DC converter 204 is closed so that battery 202 stops absorbing braking electric energy, wherein the second preset threshold U2 is less than first Preset threshold U1.At this point, the braking electric energy that train 2 generates feeds back to Traction networks 1, and the battery of train 2 by distributor 203 202, charging capacitor 205 and energy-accumulating power station 3 do not absorb braking electric energy.
Specifically, as shown in figure 3, when train 2 is braked, braking electric energy feeds back to Traction networks 1, Traction networks 1 Voltage U is increased, the voltage U of real-time detection Traction networks, if the voltage U of Traction networks is greater than the first preset threshold U1, such as 845V, The braking electric energy for illustrating to feed back at this time on Traction networks 1 is superfluous, then the first controller 207 controls the first two-way DC/DC converter 204 work are in charge mode to absorb braking electric energy by battery 202.At this point, the braking electric energy that train 2 generates passes through distributor 203 feed back to Traction networks 1, while being charged by the first two-way DC/DC converter 204 to battery 202, that is, pass through battery 202 absorb partial brake electric energy.Later if the voltage U of Traction networks illustrates at this time less than the second preset threshold U2, such as 830V The load requirement fed back on braking electric energy and Traction networks 1 on Traction networks 1 has basically reached balance, then the first controller 207 The first two-way DC/DC converter 204 is controlled to close.At this point, battery 202 stops absorbing braking electric energy, the braking electricity that train 2 generates Traction networks 1 can be fed back to by distributor 203.
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, thus, it prevents the braking electric energy not consumed from the voltage U of Traction networks being caused to increase, avoids the device failure on Traction networks 1.
According to one embodiment of present invention, as shown in figure 4, the first controller 207 is greater than the in the voltage U of Traction networks 1 When three preset threshold U3, the second two-way DC/DC converter 206 of control receives braking electric energy by charging capacitor 205 as charging Capacitor 205 charges, wherein third predetermined threshold value U3 is greater than the first preset threshold U1.At this point, the electric energy in circuit is according to Fig. 4 institute Show the direction flowing of arrow instruction, the braking electric energy that train 2 generates feeds back to Traction networks 1, and the charging capacitor 205 of train 2 Absorb braking electric energy.
Specifically, as shown in figure 4, 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 U of Traction networks 1 is continued growing, when the voltage U of Traction networks is big When third predetermined threshold value U3, the two-way DC/DC converter 206 of the first controller 207 control second is opened, and it is two-way to control second DC/DC converter 206 enters charge mode, so that charging capacitor 205 receives braking electric energy as the charging of charging capacitor 205.
According to one embodiment of present invention, second controller 301 is greater than the 5th preset threshold in the voltage U of Traction networks 1 U5, such as when 855V, control energy-accumulating power station 3 charges.In an embodiment of the present invention, when the battery 202 of train 2 and charging When capacitor 205 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 compared with It is more, therefore the voltage of Traction networks 1 can also continue to increase.When the voltage U of Traction networks 1 is greater than third predetermined threshold value U3, the second control Device 301 processed controls the absorption braking electric energy of energy-accumulating power station 3 and charges, so that avoiding the voltage U of Traction networks 1 is more than maximum rated electricity Pressure.
According to one embodiment of present invention, as shown in figure 5, second controller 301 Traction networks 1 voltage U less than Six preset threshold U6, such as when 810V, control energy-accumulating power station 3 discharges, wherein the 6th preset threshold U6 is default less than the 5th Threshold value U5.In an embodiment of the present invention, if the more voltage that will lead to Traction networks of train on Traction networks 1 declines, this When in order to avoid Traction networks voltage be lower than minimum rated voltage, need to control energy-accumulating power station 3 and discharge to Traction networks 1.? In a specific embodiment of the invention, there are multiple energy-accumulating power stations 3, the preferential energy-accumulating power stations 3 for selecting electricity high on Traction networks 1 It discharges to Traction networks, such as the power that the high energy-accumulating power station 3 of electricity discharges is big, the power that the low energy-accumulating power station 3 of electricity discharges omits It is small, to reach the electric quantity balancing between energy-accumulating power station 3.
According to one embodiment of present invention, when the voltage U of Traction networks 1 is less than the 7th preset threshold U7, the second control Device 301 controls energy-accumulating power station 3 and discharges to Traction networks 1, meanwhile, the first controller 207 controls the first two-way DC/DC converter 204 open, and control the first two-way DC/DC converter 204 and enter discharge mode, so that the battery 202 of train 2 is to Traction networks 1 It discharges, wherein the 7th preset threshold U7 is less than the 6th preset threshold U6.In the present embodiment, if the voltage of Traction networks 1 U is too small, then the battery for controlling energy-accumulating power station 3 and train 2 discharges, so that the voltage of Traction networks 1 quickly be improved.
According to one embodiment of present invention, after energy-accumulating power station 3 discharges to Traction networks 1, when the voltage U of Traction networks is big When the 8th preset threshold U8, second controller 301 controls energy-accumulating power station 3 and stops electric discharge, wherein the 8th preset threshold U8 is greater than 6th preset threshold U6.
Specifically, the voltage U of 301 real-time monitoring Traction networks 1 of second controller, when the voltage U of Traction networks 1 is greater than the 5th Preset threshold U5, such as when 855V, second controller 301 controls the absorption braking electric energy of energy-accumulating power station 3 and charges, to mitigate electricity Pond 202 absorbs the pressure of braking electric energy, so that avoiding the voltage U of Traction networks 1 is more than the maximum rated voltage Un of Traction networks 1.Such as The more voltage decline that will lead to Traction networks of train on fruit Traction networks 1, when the voltage U of Traction networks 1 is less than the 6th default threshold Value U6, such as when 810V, second controller 301 controls energy-accumulating power station 3 and discharges to Traction networks 1.In energy-accumulating power station 3 to traction After net 1 discharges, the voltage U of Traction networks gos up, and second controller 301 continues to monitor the voltage U of Traction networks, when the electricity of Traction networks When U being pressed to be greater than the 8th preset threshold U8, illustrate to feed back the braking electric energy on Traction networks 1 and the load base on Traction networks 1 at this time Originally balance has been reached, then second controller 301 controls energy-accumulating power station 3 and stops discharging.Further, if on Traction networks 1 Train quantity is more, and after control energy-accumulating power station 3 is discharged, the voltage U of Traction networks will continue to reduce, when the electricity of Traction networks When pressing U less than the 7th preset threshold U7, second controller 301 controls energy-accumulating power station 3 and discharges to Traction networks 1, meanwhile, first Controller 207 controls the first two-way DC/DC converter 204, and controls the first two-way DC/DC converter 204 and enter discharge mode, So that the battery 202 of train 2 discharges to Traction networks 1, so that the voltage of Traction networks 1 quickly be improved.Wherein, battery 202 Discharge power be battery 202 maximum allowable discharge power and the first two-way DC/DC converter 204 maximum allowable electric discharge function Smaller value in rate.
According to one embodiment of present invention, as shown in fig. 6, train further include: mechanical brake 208, for train Carry out mechanical braking.
According to one embodiment of present invention, when the voltage U of Traction networks 1 is greater than the 4th preset threshold U4, the first control Device 207 controls the starting cooperation implementation electric brake 201 of mechanical brake 208 and brakes to train, wherein the 4th preset threshold U4 is greater than the first preset threshold U1.In an embodiment of the present invention, it if the train on Traction networks 1 is less, or brakes at this time Train it is more, then battery 202, charging capacitor 205 and energy-accumulating power station 3 absorb braking electric energy after, the voltage U of Traction networks 1 It will continue to increase, when the voltage of Traction networks 1 is greater than the 4th preset threshold U4, the first controller 207 controls mechanical brake 208 Starting, to carry out auxiliary braking to train 2.
Specifically, after battery 202, charging capacitor 205 and energy-accumulating power station 3 absorb braking electric energy, the electricity of Traction networks 1 Pressure U will continue to increase, the voltage U of 207 real-time monitoring Traction networks of the first controller, if the voltage U of Traction networks is greater than the 4th in advance If threshold value U4, then the first controller 207 control mechanical brake 208 starts, in this way, while carrying out electric braking to train 2 Auxiliary braking is carried out to train 2 by mechanical braking, to reduce the braking electric energy of the generation of train 2, to avoid the electricity of Traction networks Pressing U is more than maximum rated voltage, and precisely quickly parking may be implemented.
It should be noted that can equally be controlled when the travel speed of train 2 is lower than 5Km/h or needs inlet parking Mechanical brake 208 processed is opened to brake to train 2.
According to one embodiment of present invention, train 2 further include: the first coulometric detector, the first coulometric detector and One controller 207 is connected, and the first coulometric detector is used to detect the electricity Q of battery, wherein when battery absorbs braking electric energy, If the electricity Q of battery is greater than the first power threshold Q1, such as 80%, then the two-way DC/DC of the first controller 207 control first becomes Parallel operation 204 is closed so that battery stops absorbing braking electric energy.In an embodiment of the present invention, it the charge power of battery 202 and puts Electrical power is restricted, and the electricity after absorbing braking electric energy of battery 202 will increase, if the electricity of battery 202 is excessive, will affect Therefore the service life of battery 202 when electricity Q is greater than the first power threshold Q1, controls the first two-way DC/DC converter 204 It closes, stops absorbing braking electric energy to control battery 202.According to one embodiment of present invention, train 2 further include: the second electricity Amount detector, for detecting the electricity Q ' of charging capacitor 205, wherein when charging capacitor 205 absorbs braking electric energy, if filled The electricity Q ' of capacitor 205 is greater than the second power threshold Q2, then the first controller 207 controls the second two-way DC/DC converter 206 It closes so that charging capacitor 205 stops absorbing braking electric energy.
According to one embodiment of present invention, as shown in fig. 7, train 2 further include: contactor detector 209, contactor inspection It surveys device 209 to be connected with the first controller 207, whether the contactor that contactor detector 209 is used to detect train disconnects, wherein After detecting that contactor disconnects, the first controller 207 controls distributor 203 and closes, and controls the first two-way DC/DC transformation Device 204 enters discharge mode so that battery 202 is the power supply of train 2, and controls train 2 and limit Power operation.
Specifically, when contactor detector 209 detects that contactor disconnects, illustrate that train 2 is in abnormal electrical power supply shape State, the first controller 207 judges that train 2 enters emergency driving mode, and issues emergency traction signal, two-way with control first DC/DC converter 204 is opened, and is controlled the first two-way DC/DC converter 204 and entered discharge mode, at this point, battery 202 is column Vehicle power supply.Meanwhile first controller 207 control battery 202 discharge power be less than or equal to predetermined power threshold value such as 70KW, with Train 2 is set to operate 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.
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, the first two-way DC/DC converter and the second two-way DC/DC converter feed back to Traction networks for electric energy is braked, first Braking electric energy is absorbed using battery or charging capacitor, when the voltage of Traction networks continues to increase, recycles energy-accumulating power station It is absorbed.In addition, energy-accumulating power station can also discharge to Traction networks according to the voltage of Traction networks, to avoid Traction networks Brownout maintains the normal work of Traction networks.In embodiments of the present invention, will first to brake electric energy when train is braked anti- Traction networks are fed to, at this time if the train on Traction networks is relatively more, the braking electric energy of feedback can uniformly be arrived other trains, because The voltage of this 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 More, then the voltage of Traction networks will increase, and in embodiments of the present invention, preferentially be inhaled using on-vehicle battery and charging capacitor It receives, if the voltage of Traction networks continues to increase after on-vehicle battery and charging capacitor absorb, reuses energy-accumulating power station progress It absorbs.It since on-vehicle battery is just mounted on train, is preferentially absorbed using battery, avoids the occurrence of braking electric energy mistake Greatly, the problem of can not being rapidly absorbed or consume, being burned out so as to cause the electric appliance of Traction networks.The embodiment of the present invention passes through train On battery, charging capacitor and energy-accumulating power station to braking electric energy absorb, thus realize braking electric energy recycling and again benefit With reducing energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can be with the electricity of effective monitoring Traction networks Pressure, protects the components of system, improves the safety of system.
As shown in figure 8, for according to the block diagram of the train of the embodiment of the present invention.As shown in figure 8, the train includes: Electric brake 201, battery 202, distributor 203, the first two-way DC/DC converter 204, charging capacitor 205, the second two-way DC/ DC converter 206 and the first controller 207.
Wherein, distribution 203 is connected with Traction networks 1 and electric brake 201, has between distributor 203 and electric brake 201 Node；One end of first two-way DC/DC converter 204 is connected with battery 204, the other end of the first two-way DC/DC converter 204 Node between distributor 203 and electric brake 201 is connected.One end of second two-way DC/DC converter 206 and charging capacitor 205 are connected, and the other end of the second two-way DC/DC converter 206 is connected with the node between distributor 203 and electric brake 201. First controller 207 is connected with distributor 203, the first two-way DC/DC converter 204 and the second two-way DC/DC converter 206, First controller 207 is used to prepare electric appliance 203, the first two-way DC/DC converter 204 and second in train braking time control two-way DC/DC converter 206 controls the first two-way DC/DC by braking electric energy feedback to Traction networks 1, and according to the voltage U of Traction networks 1 Converter 204 and the second two-way DC/DC converter 206, to select battery 202 or charging capacitor 205 to the braking electric energy of train 2 It is absorbed, such as the two-way DC/DC converter 204 of the first controller 207 control first is opened, and controls the first two-way DC/DC Converter 204 enters charge mode, so that battery 202 is absorbed, the two-way DC/DC converter 206 of control second is opened, and is controlled The second two-way DC/DC converter 206 is made into charge mode, so that charging capacitor 205 is absorbed.
Specifically, when train 2 is braked, traction electric machine is changed into generator operating condition, 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, feedback to the braking electric energy on Traction networks 1 can be more than to lead Electric energy needed for drawing 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 207 is real When monitor the voltage U of Traction networks 1, it is preferential that train 2 is controlled by the first controller 207 when the voltage U of Traction networks 1 is increased First two-way DC/DC converter 204 is opened, and is controlled the first two-way DC/DC converter 204 and entered charge mode, so that battery 202 absorb braking electric energy, if the voltage U of Traction networks 1 continues to increase, the first controller 207 controls second pair of train again It is opened to DC/DC converter 206, and controls the second two-way DC/DC converter 206 and enter charge mode, so that charging capacitor 205 Absorb braking electric energy.
In an embodiment of the present invention, itself charging and discharging of charging capacitor 205 is rapid, and train 2 can be absorbed and brake moment The biggish braking electric energy generated, and the braking limited energy that the battery 202 of train 2 can absorb in a short time, if column The braking electric energy that the braking of vehicle 2 generates is larger, then the first controller 207 control charging capacitor 205 is absorbed.
A specific example according to the present invention, battery 202 can be iron cell or ferric phosphate lithium cell.
It should be noted that the battery 202 of train 2 can be powered for the illumination of train, air-conditioning, multimedia.
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 being absorbed or consuming from the voltage U of Traction networks being caused to increase, the components 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, it is fed when train starts braking to Traction networks, wherein the first controller 207 are greater than the first preset threshold U1 in the voltage U of Traction networks 1, such as when 845V, the first two-way DC/DC converter 204 of control into Enter charge mode so that battery 202 receives braking electric energy as the charging of battery 202.In an embodiment of the present invention, the system of train 2 Electrokinetic energy first feeds back to Traction networks, and the voltage U that will lead to Traction networks 1 is increased, and the voltage U of real-time detection Traction networks 1 works as Traction networks When 1 voltage U is greater than the first preset threshold U1, the two-way DC/DC converter 204 of the first controller 207 control first is opened, and is controlled The first two-way DC/DC converter 204 is made into charge mode, and controls the second two-way DC/DC converter 206 and closes, so that electric Pond 202 absorbs braking electric energy.In an embodiment of the present invention, when the first controller 207 controls the first two-way DC/DC converter When 204 entrance charge mode, on high-tension side DC power conversion is the voltage with battery 202 by the first two-way DC/DC converter 204 Matched direct current controls the absorption braking electric energy of battery 202 to be charged to battery 202.
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 207 Traction networks 1 voltage U less than the second preset threshold U2, such as when 830V, control first is two-way DC/DC converter 204 is closed so that battery stops absorbing braking electric energy, wherein the second preset threshold U2 is less than the first default threshold Value U1.
Specifically, when train 2 is braked, braking electric energy feeds back to Traction networks 1, and the voltage U of Traction networks 1 is increased, The voltage U of real-time detection Traction networks illustrates anti-at this time if the voltage U of Traction networks is greater than the first preset threshold U1, such as 845V The braking electric energy being fed on Traction networks 1 is superfluous, then the two-way work of DC/DC converter 204 of the first controller 207 control first is being filled Power mode is to absorb braking electric energy by battery 202.At this point, the braking electric energy that train 2 generates is fed back to by distributor 203 and is led Draw net 1, while being charged by the first two-way DC/DC converter 204 to battery 202, i.e., part is absorbed by battery 202 and made Electrokinetic energy.Later if the voltage U of Traction networks is less than the second preset threshold U2, such as 830V, illustrate that feedback arrives Traction networks 1 at this time On braking electric energy and Traction networks 1 on load requirement basically reached balance, then the first controller 207 controls first two-way DC/DC converter 204 is closed.At this point, 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, thus, it prevents the braking electric energy not consumed from the voltage U of Traction networks being caused to increase, avoids the device failure on Traction networks 1.
According to one embodiment of present invention, the first controller 207 is greater than third predetermined threshold value in the voltage U of Traction networks 1 When U3, the two-way DC/DC converter 206 of control second enters charge mode so that charging capacitor 205 receives braking electric energy with to fill Capacitor 205 charges, wherein third predetermined threshold value U3 is greater than the first preset threshold U1.
Specifically, if the train on Traction networks 1 is less, or the train 2 braked at this time is more, then in train 2 Battery 202 starts after absorbing braking electric energy, and the voltage U of Traction networks 1 is continued growing, when the voltage U of Traction networks is pre- greater than third If when threshold value U3, the two-way DC/DC converter 206 of the first controller 207 control second is opened, and is controlled the second two-way DC/DC and become Parallel operation 206 enters charge mode, so that charging capacitor 205 receives braking electric energy as the charging of charging capacitor 205.
According to one embodiment of present invention, as shown in figure 9, train 2 further include: mechanical brake 208, for train Carry out mechanical braking.
According to one embodiment of present invention, the first controller 207 is greater than the 4th preset threshold in the voltage U of Traction networks 1 When U4, the control starting cooperation of mechanical brake 208 is implemented electric brake 201 and is braked to train, wherein the 4th preset threshold U4 is greater than the first preset threshold U1.In an embodiment of the present invention, it if the train on Traction networks 1 is less, or brakes at this time Train it is more, then battery 202, charging capacitor 205 and energy-accumulating power station 3 absorb braking electric energy after, the voltage U of Traction networks 1 It will continue to increase, when the voltage of Traction networks 1 is greater than the 4th preset threshold U4, the first controller 207 controls mechanical brake 208 Starting, to carry out auxiliary braking to train 2.
Specifically, after battery 202, charging capacitor 205 and energy-accumulating power station 3 absorb braking electric energy, the electricity of Traction networks 1 Pressure U will continue to increase, the voltage U of 207 real-time monitoring Traction networks of the first controller, if the voltage U of Traction networks is greater than the 4th in advance If threshold value U4, then the first controller 207 control mechanical brake 208 starts, in this way, while carrying out electric braking to train 2 Auxiliary braking is carried out to train 2 by mechanical braking, to reduce the braking electric energy of the generation of train 2, to avoid the electricity of Traction networks Pressing U is more than maximum rated voltage, and precisely quickly parking may be implemented.
It should be noted that can equally be controlled when the travel speed of train 2 is lower than 5Km/h or needs inlet parking Mechanical brake 208 processed is opened to brake to train 2.
According to one embodiment of present invention, train 2 further include: the first coulometric detector, the first coulometric detector and One controller 207 is connected, and the first coulometric detector is used to detect the electricity Q of battery, wherein when battery absorbs braking electric energy, If the electricity Q of battery is greater than the first power threshold Q1, such as 80%, then the two-way DC/DC of the first controller 207 control first becomes Parallel operation 204 is closed so that battery stops absorbing braking electric energy.In an embodiment of the present invention, it the charge power of battery 202 and puts Electrical power is restricted, and the electricity after absorbing braking electric energy of battery 202 will increase, if the electricity of battery 202 is excessive, will affect The service life of battery 202, when electricity Q is greater than the first power threshold Q1, the two-way DC/DC converter 204 of control first is closed, Stop absorbing braking electric energy to control battery 202.According to one embodiment of present invention, train 2 further include: the second electric power detection Device, the second coulometric detector are connected with the first controller 207, and the second coulometric detector is used to detect the electricity of charging capacitor 205 Q ', wherein when charging capacitor 205 absorbs braking electric energy, if the electricity Q ' of charging capacitor 205 is greater than the second power threshold Q2, then the two-way DC/DC converter 206 of the first controller 207 control second is closed so that charging capacitor 205 stops absorbing braking electricity Energy.
According to one embodiment of present invention, as shown in Figure 10, train 2 further include: contactor detector 209, contactor Detector 209 is connected with the first controller 207, and whether the contactor that contactor detector 209 is used to detect train disconnects, In, after detecting that contactor disconnects, the first controller 207 controls distributor 203 and closes, and controls the first two-way DC/DC Converter 204 is opened, and is controlled the first two-way DC/DC converter 204 and entered discharge mode, so that battery 202 is the confession of train 2 Electricity, and control train 2 and limit Power operation.
Specifically, when contactor detector 209 detects that contactor disconnects, illustrate that train 2 is in abnormal electrical power supply shape State, the first controller 207 judges that train 2 enters emergency driving mode, and issues emergency traction signal, two-way with control first DC/DC converter 204, and control the first two-way DC/DC converter 204 and enter discharge mode into charge mode, at this point, battery 202 be train power supply.Meanwhile first controller 207 control battery 202 discharge power be less than or equal to predetermined power threshold value for example 70KW, so that train 2 operates 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.
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 11, train 2 further include: 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 by the traction of bogie 20 along track girder.
According to one embodiment of present invention, as shown in figure 11, bogie 20 include: bogie frame 21, travelling wheel 22, Power device 23 and horizontal wheels 24, wherein bogie frame 21 is suitable for straddle seat and is connected on track girder and with car body 30；Travelling wheel 22 are pivotably mounted on bogie frame 21 and cooperate on the upper surface of track girder；Power device 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 cooperate in track On the side surface of beam.
According to one embodiment of present invention, as shown in figure 11, bogie 20 further include: traction device 25 and supported and suspended Device 26, wherein traction device 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, when being braked, the first controller is in train braking time control It prepares electric appliance, the first two-way DC/DC converter and the second two-way DC/DC converter and feeds back to Traction networks for electric energy is braked, utilize Battery or charging capacitor absorb braking electric energy.It in embodiments of the present invention, first will braking electricity when train is braked Traction networks can be fed back to, at this time if the train on Traction networks is relatively more, the braking electric energy of feedback can uniformly be arrived other column Vehicle, therefore the voltage of Traction networks will not increase very much.If instead the train at this time on Traction networks is less, or brake at this time Train is more, then the voltage of Traction networks will increase, in embodiments of the present invention, preferentially using on-vehicle battery and charging capacitor into Row absorbs.Since on-vehicle battery is just mounted on train, is preferentially absorbed using battery, avoid the occurrence of braking electric energy It is excessive, the problem of can not being rapidly absorbed or consume, be burned out so as to cause the electric appliance of Traction networks.The embodiment of the present invention passes through column Battery and charging capacitor on vehicle absorb braking electric energy, to realize the recycling and reuse of braking electric energy, reduce Energy waste, reduces the load of Traction networks.Also, the embodiment of the present invention can be protected with the voltage of effective monitoring Traction networks The components of system improve the safety of system.
As shown in figure 12, 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 12, Method includes the following steps:
S10: braking train, and generates braking electric energy according to brake force, and braking electric energy is fed back to Traction networks.
S20: the voltage of Traction networks is monitored.
S30: battery or charging capacitor is selected to absorb braking electric energy according to the voltage of Traction networks.
S40: energy-accumulating power station is controlled according to the voltage of Traction networks and carries out charge or discharge.
Specifically, when braking to train, braking electric energy is generated according to brake force, and braking electric energy is fed back to Traction networks.When the load on train negligible amounts, that is, Traction networks on Traction networks is smaller or Traction networks on the train braked compared with When more, feeding back can be more than electric energy needed for the train operation on Traction networks, so as to cause traction to the braking electric energy on Traction networks The voltage U of net is increased, the voltage U of real-time monitoring Traction networks, and when the voltage U of Traction networks is increased, control battery first absorbs system Electrokinetic energy if the voltage U of Traction networks continues to increase, then controls train charging capacitor and absorbs braking electric energy.Meanwhile continuing to supervise The voltage of Traction networks is surveyed, if the voltage U of Traction networks is after of continuing rising after the battery and charging capacitor of control train are absorbed Height then controls energy-accumulating power station absorption braking electric energy and charges.Similarly, it when the train quantity on Traction networks is more, that is, draws When online load is larger, the voltage U of Traction networks can be reduced, the voltage U of real-time monitoring Traction networks, when the voltage U of Traction networks drops When low, control energy-accumulating power station first discharges to improve the voltage of Traction networks, if the voltage U of Traction networks continues to reduce, Control battery discharges to improve the voltage of Traction networks.
In an embodiment of the present invention, charging capacitor itself charging and discharging is rapid, and the generation of train braking moment can be absorbed Biggish braking electric energy, and the braking limited energy that the battery of train can absorb in a short time, if train braking produces Raw braking electric energy is larger, then controls charging capacitor and absorbed.
A specific example according to the present invention, battery can be iron cell or ferric phosphate lithium cell.
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 being absorbed or consuming from drawing The voltage U for playing Traction networks is increased, and is protected the components of system, is avoided the electric appliance on Traction networks from damaging, improve the peace of system Quan Xing.
The embodiment of the present invention absorbs braking electric energy by the battery on control 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, according to the voltage of Traction networks select battery or charging capacitor to braking electric energy into Row, which absorbs, to be specifically included: judging whether the voltage U of Traction networks is greater than the first preset threshold U1, such as 845V；If Traction networks Voltage U is greater than the first preset threshold U1, then controls battery receptacle braking electric energy as battery charging.In the embodiment of the present invention In, the braking electric energy of train first feeds back to Traction networks, and the voltage U that will lead to Traction networks is increased, the voltage of real-time detection Traction networks U, when the voltage U of Traction networks is greater than the first preset threshold U1, the first two-way DC/DC converter for controlling train enters charging mould Formula, and the second two-way DC/DC converter for controlling train is closed, so that battery absorbs braking electric energy.
According to one embodiment of present invention, the braking recovery method of train further include: judge that the voltage U of Traction networks is less than Second preset threshold U2, such as 830V；If the voltage U of Traction networks controls battery and stops inhaling less than the second preset threshold U2 Receive braking electric energy, wherein the second preset threshold U2 is less than the first preset threshold U1.In an embodiment of the present invention, in control electricity After pond absorbs braking electric energy, the voltage of Traction networks can decline, when the voltage U of Traction networks is less than the second preset threshold U2, control The two-way DC/DC converter of the first of train processed is closed so that battery stops absorbing braking electric energy.
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, the braking recovery method of train further include: judge Traction networks voltage U whether Greater than third predetermined threshold value U3；If the voltage U of Traction networks is greater than third predetermined threshold value U3, controls charging capacitor and receive braking Electric energy is charging capacitor charging, wherein third predetermined threshold value U3 is greater than the first preset threshold U1.
Specifically, if the train on Traction networks is less, or the train braked at this time is more, then in the battery of train Start after absorbing braking electric energy, the voltage U of Traction networks is continued growing, when the voltage U of Traction networks is greater than third predetermined threshold value U3 When, the second two-way DC/DC converter for controlling train receives braking electric energy by charging capacitor as charging capacitor charging.
According to one embodiment of present invention, the braking recovery method of train further include: judge Traction networks voltage U whether Greater than the 5th preset threshold U5；If the voltage U of Traction networks is greater than the 5th preset threshold U5, controls energy-accumulating power station and filled Electricity.In an embodiment of the present invention, when the battery of train and charging capacitor start to absorb braking electric energy, at this time due to Traction networks On train it is less, or the train braked at this time is more, therefore the voltage of Traction networks can also continue to increase.When the electricity of Traction networks When U being pressed to be greater than third predetermined threshold value U3, control energy-accumulating power station absorbs braking electric energy and charges, to avoid the voltage of Traction networks U is more than maximum rated voltage.
According to one embodiment of present invention, the braking recovery method of train further include: judge Traction networks voltage U whether Less than the 6th preset threshold U6, such as 810V；If the voltage U of Traction networks controls energy storage electricity less than the 6th preset threshold U6 It discharges at station, wherein the 6th preset threshold U6 is less than the 5th preset threshold U5.In an embodiment of the present invention, if traction The more voltage decline that will lead to Traction networks of online train, at this time in order to avoid the voltage of Traction networks is lower than minimum rated electricity Pressure, needs to control energy-accumulating power station and discharges to Traction networks.In one particular embodiment of the present invention, exist on Traction networks more A energy-accumulating power station, the preferential energy-accumulating power station for selecting electricity high discharge to Traction networks, such as the function of the high energy-accumulating power station electric discharge of electricity Rate is big, and the power of the low energy-accumulating power station electric discharge of electricity is smaller, to reach the electric quantity balancing between energy-accumulating power station.
According to one embodiment of present invention, the braking recovery method of train further include: judge Traction networks voltage U whether Less than the 7th preset threshold U7；If the voltage U of Traction networks controls energy-accumulating power station to Traction networks less than the 7th preset threshold U7 It discharges, meanwhile, control battery discharges to Traction networks, wherein the 7th preset threshold U7 is less than the 6th preset threshold U6. In the present embodiment, if the voltage U of Traction networks is too small, the battery for controlling energy-accumulating power station and train discharges, thus The voltage of Traction networks is quickly improved.
According to one embodiment of present invention, the braking recovery method of train further include: judge Traction networks voltage U whether Greater than the 8th preset threshold U8；If the voltage U of Traction networks is greater than the 8th preset threshold U8, controls energy-accumulating power station stopping and put Electricity, wherein the 8th preset threshold U8 is greater than the 6th preset threshold U6.
According to one embodiment of present invention, the braking recovery method of train further include: judge Traction networks voltage whether Greater than the 4th preset threshold；If the voltage of Traction networks is greater than the 4th preset threshold, controls train and carry out mechanical braking cooperation Implement electric braking to brake train, wherein the 4th preset threshold is greater than the first preset threshold.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 greater than third predetermined threshold value U3 when, control train into Row mechanical braking, to carry out auxiliary braking to train.
Specifically, after battery, charging capacitor and energy-accumulating power station absorb braking electric energy, the voltage U of Traction networks can be after It is continuous to increase, the voltage U of real-time monitoring Traction networks, if the voltage U of Traction networks is greater than third predetermined threshold value U3, control train into Row mechanical braking, in this way, auxiliary braking is carried out to train by mechanical braking while carrying out electric braking to train, to reduce The braking electric energy that train generates so that avoiding the voltage U of Traction networks is 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 include: detect the electricity Q of battery, and sentence Whether the electricity Q in power-off pond is greater than the first power threshold Q1, such as 80%；If the electricity Q of battery is greater than the first power threshold Q1 then controls battery and stops absorbing braking electric energy.In an embodiment of the present invention, the charge power of battery and discharge power by Limitation, battery electricity after absorbing braking electric energy will increase, if the electricity of battery is excessive, will affect the service life of battery, When electricity Q is greater than the first power threshold Q1, the first two-way DC/DC converter for controlling train is closed, to control battery stopping Absorb braking electric energy.
According to one embodiment of present invention, the braking recovery method of train further include: the electricity Q ' of charging capacitor is detected, And judge whether the electricity Q ' of charging capacitor is greater than the second power threshold Q2；If the electricity Q ' of charging capacitor is greater than the second electricity Threshold value Q2 then controls charging capacitor and stops absorbing braking electric energy.
According to one embodiment of present invention, the braking recovery method of train further include: detect train contactor whether It disconnects；If detecting that contactor disconnects, controlling battery is train power supply, 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 emergency traction signal is issued, 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.
As described above, as shown in Figs. 13 and 14, 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
S101: braking train, and generates braking electric energy according to brake force, and braking electric energy is fed back to traction Net.
S102: the voltage U of real-time monitoring Traction networks.
S103: judge whether the voltage U of Traction networks is greater than the first preset threshold U1 such as 845V.
If so, thening follow the steps S105；If it is not, then repeating step S103.
S104: control battery absorbs braking electric energy.
S105: judge whether the voltage U of Traction networks is greater than third predetermined threshold value U3.
If so, thening follow the steps S106；If it is not, then repeating step S105.
S106: control charging capacitor absorbs braking electric energy.
S107: judge whether the voltage U of Traction networks is greater than the 5th preset threshold U5.
If so, thening follow the steps S108；If it is not, then repeating step S107.
S108: control energy-accumulating power station absorbs braking electric energy.
Two) recycling of electric energy is braked
S201: the voltage U of Traction networks is monitored.
S202: judge the voltage U of Traction networks whether less than the 6th preset threshold U6 such as 810V.
If so, thening follow the steps S203；If it is not, then repeating step S202.
S203: control energy-accumulating power station discharges.
S204: judge the voltage U of Traction networks whether less than the 7th preset threshold U7.
If so, thening follow the steps S205；If it is not, then repeating step S204.
S205: 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, it can control battery and enter discharge mode, to realize train Emergency driving.
In this way, the braking power consumption 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 root Braking electric energy is generated according to brake force, and braking electric energy is fed back into Traction networks, then monitors the voltage of Traction networks, and according to traction The voltage control battery or rechargeable battery of net absorb the braking electric energy of train, if the voltage of Traction networks continues to increase, Then energy-accumulating power station is recycled to be absorbed.Traction networks are carried out further, it is also possible to control energy-accumulating power station according to the voltage of Traction networks Electric discharge, to avoid the brownout of Traction networks, maintains the normal work of Traction networks.In embodiments of the present invention, to train into Braking electric energy is first fed back into Traction networks after row braking, it, can be by the system of feedback at this time if the train on Traction networks is relatively more Electrokinetic energy uniformly arrives other trains, therefore the voltage of Traction networks will not increase very much.If instead the train on Traction networks at this time It 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, preferential to use On-vehicle battery and charging capacitor are absorbed, if the voltage of Traction networks is after of continuing rising after on-vehicle battery and charging capacitor absorb Height then reuses energy-accumulating power station and is absorbed.Since on-vehicle battery is just mounted on train, preferentially carried out using battery It absorbs, 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 battery, charging capacitor and the energy-accumulating power station on train, to realize The recycling and reuse of braking electric energy, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention is also The components of system can be protected, the safety of system is improved 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 the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting 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；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary 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 in the second feature " on " or " down " can be with It is that the first and second features directly 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 First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means 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 embodiment or examples.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, modifies, replacement and variant.

Claims (32)

1. a kind of braking recovery system of train characterized by comprising
Traction networks；
The multiple trains being connected on the Traction networks, each train include:
Electric brake；
Battery；
Charging capacitor；
Distributor, the distributor are connected with the electric brake, have node between the distributor and the electric brake, The distributor is also connected with the Traction networks；
One end of first two-way DC/DC converter, the first two-way DC/DC converter is connected with the battery, and described first The other end of two-way DC/DC converter is connected with the node；
One end of second two-way DC/DC converter, the second two-way DC/DC converter is connected with the charging capacitor, described The other end of second two-way DC/DC converter is connected with the node；
First controller, first controller and the distributor, the first two-way DC/DC converter and second pair described It is connected to DC/DC converter, first controller is for controlling the distributor, first pair described in the train braking To DC/DC converter and the second two-way DC/DC converter by braking electric energy feedback to the Traction networks, and according to described The voltage of Traction networks controls the first two-way DC/DC converter and the second two-way DC/DC converter, to select the electricity Pond or the charging capacitor absorb the braking electric energy of the train, wherein first controller is also used to described The first two-way DC/DC converter and described is controlled according to the voltage of the Traction networks when other train brakings on Traction networks Second two-way DC/DC converter, to select the battery or the charging capacitor to absorb the braking electric energy of the train；
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；
Wherein, braking electric energy is absorbed first with the battery or the charging capacitor, recycle the energy-accumulating power station into Row absorbs.
2. the braking recovery system of train as described in claim 1, which is characterized in that
First controller is used to that it is two-way to control described first when the voltage of the Traction networks is greater than the first preset threshold DC/DC converter is by braking electric energy described in the battery receptacle for battery charging.
3. the braking recovery system of train as claimed in claim 2, which is characterized in that
First controller is used for when the voltage of the Traction networks is less than the second preset threshold, and it is two-way to control described first DC/DC converter is closed so that the battery stops absorbing the braking electric energy, wherein second preset threshold is less than described First preset threshold.
4. the braking recovery system of train as claimed in claim 2, which is characterized in that
First controller is used to that it is two-way to control described second when the voltage of the Traction networks is greater than third predetermined threshold value DC/DC converter receives the braking electric energy by the charging capacitor as charging capacitor charging, wherein the third Preset threshold is greater than first preset threshold.
5. the braking recovery system of train as claimed in claim 4, which is characterized in that the train further include:
Mechanical brake, for carrying out mechanical braking to train.
6. the braking recovery system of train as claimed in claim 5, which is characterized in that
First controller is used to control the mechanical brake when the voltage of the Traction networks is greater than four preset thresholds Starting cooperation is implemented electric brake and is braked to the train, wherein it is default that the 4th preset threshold is greater than described first Threshold value.
7. the braking recovery system of train as described in claim 1, which is characterized in that
The second controller be used for the Traction networks voltage be greater than five preset thresholds when, control the energy-accumulating power station into Row charging.
8. the braking recovery system of train as claimed in claim 7, which is characterized in that
The second controller be used for when the voltage of the Traction networks is less than six preset thresholds, control the energy-accumulating power station into Row electric discharge, wherein the 6th preset threshold is less than the 5th preset threshold.
9. the braking recovery system of train as claimed in claim 8, which is characterized in that
When the voltage of the Traction networks is less than seven preset thresholds, the second controller controls the energy-accumulating power station to described Traction networks discharge, meanwhile, first controller controls the two-way DC/DC converter and enters discharge mode so that described The battery of train discharges to the Traction networks, wherein the 7th preset threshold is less than the 6th preset threshold.
10. the braking recovery system of train as described in claim 1, which is characterized in that the train 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 also used to after the contactor disconnects, control The distributor is closed, and is controlled the described first two-way DC/DC converter and entered discharge mode so that the battery is the column Vehicle power supply, and control the train limit Power operation.
11. the braking recovery system of train as described in claim 1, 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.
12. the braking recovery system of train as described in claim 1, which is characterized in that in every 3-6 kilometers described in setting two Energy-accumulating power station, the power of the energy-accumulating power station are 0.5-2MW.
13. a kind of train characterized by comprising
Electric brake；
Battery；
Charging capacitor；
Distributor, the distributor are connected with the electric brake, have node between the distributor and the electric brake, The distributor is also connected with Traction networks；
One end of first two-way DC/DC converter, the first two-way DC/DC converter is connected with the battery, and described first The other end of two-way DC/DC converter is connected with the node；
One end of second two-way DC/DC converter, the second two-way DC/DC converter is connected with the charging capacitor, described The other end of second two-way DC/DC converter is connected with the node；
First controller, first controller and the distributor, the first two-way DC/DC converter and second pair described It is connected to DC/DC converter, first controller is for controlling the distributor, first pair described in the train braking To DC/DC converter and the second two-way DC/DC converter by braking electric energy feedback to the Traction networks, and according to described The voltage of Traction networks controls the first two-way DC/DC converter and the second two-way DC/DC converter, to select the electricity Pond or the charging capacitor absorb the braking electric energy of the train, wherein when connecting multiple trains on the Traction networks When, first controller is also used to be controlled in other train brakings on the Traction networks according to the voltage of the Traction networks The first two-way DC/DC converter and the second two-way DC/DC converter, to select the battery or the charging capacitor The braking electric energy of the train is absorbed.
14. train as claimed in claim 13, which is characterized in that
First controller is used to that it is two-way to control described first when the voltage of the Traction networks is greater than the first preset threshold DC/DC converter enters charge mode so that braking electric energy described in the battery receptacle is battery charging.
15. train as claimed in claim 14, which is characterized in that
First controller is used for when the voltage of the Traction networks is less than the second preset threshold, and it is two-way to control described first DC/DC converter is closed so that the battery stops absorbing the braking electric energy, wherein second preset threshold is less than described First preset threshold.
16. train as claimed in claim 14, which is characterized in that
First controller is used to that it is two-way to control described second when the voltage of the Traction networks is greater than third predetermined threshold value DC/DC converter enters charge mode so that the charging capacitor receives the braking electric energy to charge for the charging capacitor, Wherein, the third predetermined threshold value is greater than first preset threshold.
17. train as claimed in claim 16, which is characterized in that further include:
Mechanical brake, for carrying out mechanical braking to train.
18. train as claimed in claim 17, which is characterized in that
First controller is used to control the mechanical brake when the voltage of the Traction networks is greater than four preset thresholds Starting cooperation is implemented electric brake and is braked to the train, wherein it is default that the 4th preset threshold is greater than described first Threshold value.
19. train as claimed in claim 13, 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 also used to after the contactor disconnects, control The distributor is closed, and is controlled the described first two-way DC/DC converter and entered discharge mode so that the battery is the column Vehicle power supply, and control the train limit Power operation.
20. train as claimed in claim 13, which is characterized in that the train is straddle-type monorail train.
21. train as claimed in claim 20, which is characterized in that the train includes:
Bogie, the bogie are suitable for straddle seat on track girder；
Car body, the car body are connected with the bogie and are travelled by bogie traction along the track girder.
22. train as claimed in claim 21, which is characterized in that the bogie includes；
Bogie frame, the bogie frame are suitable for straddle seat and are connected on the track girder and with the car body；
Travelling wheel, the travelling wheel are pivotably mounted on the bogie frame and cooperate in the upper surface of the track girder On；
Power device, the power device 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 cooperate in the side surface of the track girder On.
23. train as claimed in claim 22, which is characterized in that the bogie further include:
Traction device, the traction device 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, it is characterised in that, the following steps are included:
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；
Battery or charging capacitor is selected to absorb the braking electric energy according to the voltage of the Traction networks, wherein when described When connecting multiple trains on Traction networks, also selected in other train brakings on the Traction networks according to the voltage of the Traction networks The battery or charging capacitor for selecting the train absorb the braking electric energy of the train；
Energy-accumulating power station, which is controlled, according to the voltage of the Traction networks carries out charge or discharge；
Wherein, braking electric energy is absorbed first with the battery or the charging capacitor, recycle the energy-accumulating power station into Row absorbs.
25. the braking recovery method of train as claimed in claim 24, which is characterized in that the electricity according to the Traction networks Pressure selection battery or charging capacitor, which absorb to the braking electric energy, to be specifically included:
Judge whether the voltage of the Traction networks is greater than the first preset threshold；
If the voltage of the Traction networks is greater than first preset threshold, control described in the battery receptacle braking electric energy with For battery charging.
26. the braking recovery method of train as claimed in claim 25, which is characterized in that further include:
Judge the voltage of the Traction networks less than the second preset threshold；
If the voltage of the Traction networks is less than second preset threshold, controls the battery and stop absorbing the braking electricity It can, wherein second preset threshold is less than first preset threshold.
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 greater than third predetermined threshold value；
If the voltage of the Traction networks is greater than third predetermined threshold value, control the charging capacitor receive the braking electric energy with For charging capacitor charging, wherein the third predetermined threshold value is greater than first preset threshold.
28. the braking recovery method of train as claimed in claim 27, which is characterized in that further include:
Judge whether the voltage of the Traction networks is greater than the 4th preset threshold；
If the voltage of the Traction networks is greater than the 4th preset threshold, controls train and carry out mechanical braking cooperation implementation electric braking The train is braked, wherein the 4th preset threshold is greater than first preset threshold.
29. 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 greater than the 5th preset threshold；
If the voltage of the Traction networks is greater than the 5th preset threshold, controls the energy-accumulating power station and charge.
30. the braking recovery method of train as claimed in claim 29, which is characterized in that further include:
Judge the voltage of the Traction networks whether less than the 6th preset threshold；
If the voltage of the Traction networks is less than the 6th preset threshold, controls the energy-accumulating power station and discharges, wherein 6th preset threshold is less than the 5th preset threshold.
31. the braking recovery method of train as claimed in claim 30, which is characterized in that further include:
Judge the voltage of the Traction networks whether less than the 7th preset threshold；
If the voltage of the Traction networks controls the energy-accumulating power station and is put to the Traction networks less than the 7th preset threshold Electricity, meanwhile, it controls the battery and discharges to the Traction networks, wherein it is pre- that the 7th preset threshold is less than the described 6th If threshold value.
32. 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, controlling the battery is the train power supply, and controls the train limit function Rate operation.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0768744A2 (en) * 1995-10-13 1997-04-16 Asmo Engineering Device for the charging of batteries of electric vehicles
JP2000233669A (en) * 1999-02-18 2000-08-29 Meidensha Corp Power feeding system for dc feeder line
CN101353020A (en) * 2007-04-25 2009-01-28 阿尔斯通运输股份有限公司 System, substation and method for recovering brake energy from railway vehicles, and railway vehicles
CN102303536A (en) * 2011-04-28 2012-01-04 同济大学 Emergency traction system applied to urban mass transit
CN104369677A (en) * 2013-08-12 2015-02-25 株式会社东芝 Electric railcar power feeding system, power feeding device, and power storage device
CN104986190A (en) * 2015-06-30 2015-10-21 北京交通大学 Method and system for utilizing recovered energy of rail train
CN105398353A (en) * 2015-10-23 2016-03-16 惠州市亿能电子有限公司 Electric source system of track traffic locomotive and control method of electric source system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0768744A2 (en) * 1995-10-13 1997-04-16 Asmo Engineering Device for the charging of batteries of electric vehicles
JP2000233669A (en) * 1999-02-18 2000-08-29 Meidensha Corp Power feeding system for dc feeder line
CN101353020A (en) * 2007-04-25 2009-01-28 阿尔斯通运输股份有限公司 System, substation and method for recovering brake energy from railway vehicles, and railway vehicles
CN102303536A (en) * 2011-04-28 2012-01-04 同济大学 Emergency traction system applied to urban mass transit
CN104369677A (en) * 2013-08-12 2015-02-25 株式会社东芝 Electric railcar power feeding system, power feeding device, and power storage device
CN104986190A (en) * 2015-06-30 2015-10-21 北京交通大学 Method and system for utilizing recovered energy of rail train
CN105398353A (en) * 2015-10-23 2016-03-16 惠州市亿能电子有限公司 Electric source system of track traffic locomotive and control method of electric source system

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