CN106809024A - The braking recovery system and method and train of train - Google Patents

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

Info

Publication number
CN106809024A
CN106809024A CN201610839994.5A CN201610839994A CN106809024A CN 106809024 A CN106809024 A CN 106809024A CN 201610839994 A CN201610839994 A CN 201610839994A CN 106809024 A CN106809024 A CN 106809024A
Authority
CN
China
Prior art keywords
train
traction networks
predetermined threshold
threshold value
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610839994.5A
Other languages
Chinese (zh)
Other versions
CN106809024B (en
Inventor
李道林
罗文刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to CN201610839994.5A priority Critical patent/CN106809024B/en
Publication of CN106809024A publication Critical patent/CN106809024A/en
Application granted granted Critical
Publication of CN106809024B publication Critical patent/CN106809024B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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, the system includes：Traction networks, train and energy-accumulating power station；Train includes：Electric brake；Battery；Charging capacitor；Distributor, distributor is connected with electric brake, has node between distributor and electric brake；First two-way DC/DC converters, its one end is connected with battery, and its other end is connected with node；Second two-way DC/DC converters, its one end is connected with charging capacitor, and its other end is connected with node；First controller, its voltage control battery or charging capacitor for being used in train braking according to Traction networks absorb to the braking electric energy of train；Energy-accumulating power station, it is connected with Traction networks, and the second controller of energy-accumulating power station carries out charge or discharge according to the voltage of Traction networks control energy-accumulating power station.The present invention controls the discharge and recharge of battery, charging capacitor and energy-accumulating power station by monitoring the voltage of Traction networks, realizes the recycling and reuse of braking electric energy, has effectively saved the energy.

Description

The braking recovery system and method and train of train
Technical field
The present invention relates to technical field of rail traffic, the braking recovery system of more particularly to a kind of train, one kind have should The braking recovery method of the train of system and a kind of train.
Background technology
With the continuous expansion of city size, traffic increasingly congestion, track train, such as light rail, subway etc. have turned into mesh The main traffic mode in preceding many cities.Train can produce substantial amounts of braking electric energy during braking, with environmental protection Theory constantly deepen, the problem that train braking electric energy is reclaimed and recycled is very urgent.Related skill existing at present Art is disclosed, and battery is set among train braking electric energy is reclaimed, and be train power supply.But produced during train braking Braking electric energy is very big, if to be absorbed by on-vehicle battery, needs to install substantial amounts of battery ON TRAINS, not only sternly Increase the weight of train again, influence the energy consumption of train operation, and also unnecessary cost can be increased.
Therefore, correlation technique needs to be improved.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, of the invention One purpose is the braking recovery system for proposing a kind of train, and the system can realize braking the recycling and reuse of electric energy.
It is another object of the present invention to propose a kind of train.A further object of the present invention is to propose a kind of train Braking recovery method.
To reach above-mentioned purpose, a kind of braking recovery system of train that one aspect of the present invention embodiment is proposed, including：Lead Draw net, train and energy-accumulating power station, the train includes：Electric brake；Battery；Charging capacitor；Distributor, the distributor and institute State electric brake to be connected, there is node between the distributor and the electric brake；First two-way DC/DC converters, it is described One end of first two-way DC/DC converters is connected with the battery, the other end of the first two-way DC/DC converters with it is described Node is connected；Second two-way DC/DC converters, one end of the second two-way DC/DC converters is connected with the charging capacitor, The other end of the second two-way DC/DC converters is connected with the node；First controller, first controller with it is described Distributor, the first two-way DC/DC converters DC/DC converters two-way with described second are connected, and first controller is used The distributor, the first two-way DC/DC converters and the second two-way DC/DC is controlled to become when in the train braking Parallel operation will brake electric energy feedback and control the first two-way DC/DC to the Traction networks, and according to the voltage of the Traction networks Converter and the second two-way DC/DC converters, 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 is connected with the Traction networks, and the energy-accumulating power station includes the second control Device, the second controller is used to carry out charge or discharge according to the control of the voltage of the Traction networks.
The braking recovery system of the train for proposing according to embodiments of the present invention, the first controller controls to match somebody with somebody in train braking Electrical equipment, the first two-way DC/DC converters and the second two-way DC/DC converters feed back to Traction networks by electric energy is braked, first with electricity Pond or charging capacitor absorb to braking electric energy, when the voltage of Traction networks continues to raise, recycle energy-accumulating power station to be inhaled Receive.Additionally, energy-accumulating power station can also discharge Traction networks according to the voltage of Traction networks, so as 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, if the train now on Traction networks is relatively more, the braking electric energy for feeding back can uniformly be arrived other trains, therefore traction The voltage of net will not rise much higher.If instead the train now on Traction networks is less, or the train now braked is more, then The voltage of Traction networks will be raised, and in embodiments of the present invention, preferentially be absorbed using on-vehicle battery and charging capacitor, if The voltage of Traction networks continues to raise after on-vehicle battery and charging capacitor absorb, then reuse energy-accumulating power station and absorbed.By Just it is arranged on train in on-vehicle battery, therefore preferentially uses battery to be absorbed, it is to avoid braking electric energy occurs excessive, it is impossible to It is rapidly absorbed or consumes, so as to the problem that the electrical equipment for causing Traction networks is burned out.The embodiment of the present invention is by the electricity on train Pond, charging capacitor and energy-accumulating power station absorb to braking electric energy, it is achieved thereby that the recycling and reuse of braking electric energy, are reduced 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 parts of system, improve the security of system.
According to one embodiment of present invention, first controller is used for pre- more than first in the voltage of the Traction networks If during threshold value, controlling the first two-way DC/DC converters to think the battery by braking electric energy described in the battery receptacle Charge.
According to one embodiment of present invention, first controller is used for pre- less than second in the voltage of the Traction networks If during threshold value, controlling the first two-way DC/DC converters to close so that the battery stops absorbing the braking electric energy, its In, second predetermined threshold value is less than first predetermined threshold value.
According to one embodiment of present invention, first controller is used for pre- more than the 3rd in the voltage of the Traction networks If during threshold value, controlling the second two-way DC/DC converters to receive the braking electric energy by the charging capacitor and thinking described Charging capacitor charges, wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
According to one embodiment of present invention, the train also includes：Mechanical brake, for carrying out mechanical system to train It is dynamic.
According to one embodiment of present invention, first controller is used for pre- more than the 4th in the voltage of the Traction networks If during threshold value, controlling the mechanical brake to start to coordinate and implement electric brake and braked to the train, wherein, described the Four predetermined threshold values are more than first predetermined threshold value.
According to one embodiment of present invention, the second controller is used for pre- more than the 5th in the voltage of the Traction networks If during threshold value, controlling the energy-accumulating power station to be charged.
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 during threshold value, controlling the energy-accumulating power station to be discharged, wherein, the 6th predetermined threshold value is less than the 5th predetermined threshold value.
According to one embodiment of present invention, when the voltage of the Traction networks is less than seven predetermined threshold values, described second Controller controls the energy-accumulating power station to be discharged to the Traction networks, meanwhile, first controller controls the two-way DC/ DC converters into discharge mode so that the battery of the train is discharged to the Traction networks, wherein, the described 7th presets Threshold value is less than the 6th predetermined threshold value.
According to one embodiment of present invention, the train also includes：Contactor detector, the contactor detector with First controller is connected, and the contactor detector is used to detect whether the contactor of the train disconnects, wherein, it is described First controller is additionally operable to after the contactor disconnects, and controls the distributor to close, and control the described first two-way DC/ DC converters enter 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 Apart from interval setting.
According to one embodiment of present invention, interior per 3-6 kilometers two energy-accumulating power stations, the energy-accumulating power station can be set Power can be 0.5-2MW.
To reach above-mentioned purpose, a kind of train that another aspect of the present invention embodiment is proposed, including：Electric brake；Battery； Charging capacitor；Distributor, the distributor is connected with the electric brake, has between the distributor and the electric brake Node；First two-way DC/DC converters, one end of the first two-way DC/DC converters is connected with the battery, and described first The other end of two-way DC/DC converters is connected with the node；Second two-way DC/DC converters, the second two-way DC/DC becomes One end of parallel operation is connected with the charging capacitor, and the other end of the second two-way DC/DC converters is connected with the node；The One controller, first controller and the distributor, the first two-way DC/DC converters and the second two-way DC/ DC converters are connected, and first controller is used to control the distributor, the first two-way DC/ in the train braking DC converters and the second two-way DC/DC converters 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 converters and the second two-way DC/DC converters, to select The battery or the charging capacitor is selected to absorb the braking electric energy of the train.
The train for proposing according to embodiments of the present invention, when being braked, the first controller controls to match somebody with somebody in train braking Electrical equipment, the first two-way DC/DC converters and the second two-way DC/DC converters feed back to Traction networks by electric energy is braked, using battery Or charging capacitor absorbs to 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, if the train now on Traction networks is relatively more, the braking electric energy for feeding back other trains can be uniformly arrived, because The voltage of this Traction networks will not rise much higher.If instead the train now on Traction networks is less, or the train now braked More, then the voltage of Traction networks will be raised, and in embodiments of the present invention, preferentially be inhaled using on-vehicle battery and charging capacitor Receive.Because on-vehicle battery is just arranged on train, therefore battery is preferentially used to be absorbed, it is to avoid braking electric energy mistake occur Greatly, it is impossible to be rapidly absorbed or consume, so as to the problem that the electrical equipment for causing Traction networks is burned out.The embodiment of the present invention passes through train On battery and charging capacitor to braking electric energy absorb, it is achieved thereby that 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 parts of system, improve the security of system.
According to one embodiment of present invention, first controller is used for pre- more than first in the voltage of the Traction networks If during threshold value, controlling the first two-way DC/DC converters to enter charge mode so as to brake electric energy described in the battery receptacle Think that the battery charges.
According to one embodiment of present invention, first controller is used for pre- less than second in the voltage of the Traction networks If during threshold value, controlling the first two-way DC/DC converters to close so that the battery stops absorbing the braking electric energy, its In, second predetermined threshold value is less than first predetermined threshold value.
According to one embodiment of present invention, first controller is used for pre- more than the 3rd in the voltage of the Traction networks If during threshold value, controlling the second two-way DC/DC converters to enter charge mode so that the charging capacitor receives the braking Electric energy thinks that the charging capacitor charges, wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
According to one embodiment of present invention, the train also includes：Mechanical brake, for carrying out mechanical system to train It is dynamic.
According to one embodiment of present invention, first controller is used for pre- more than the 4th in the voltage of the Traction networks If during threshold value, controlling the mechanical brake to start to coordinate and implement electric brake and braked to the train, wherein, described the Four predetermined threshold values are more than first predetermined threshold value.
According to one embodiment of present invention, the train also includes：Contactor detector, the contactor detector with First controller is connected, and the contactor detector is used to detect whether the contactor of the train disconnects, wherein, it is described First controller is additionally operable to after detecting the contactor and disconnecting, and controls the distributor to close, and control described first Two-way DC/DC converters enter discharge mode so that the battery is the train power supply, and controls the train limit power to transport OK.
A specific embodiment of the invention, the train can be straddle-type monorail train.
According to one embodiment of present invention, the train includes：Bogie, the bogie is suitable to straddle seat in track girder On；Car body, the car body is connected with the bogie and is travelled along the track girder by bogie traction.
According to one embodiment of present invention, the bogie includes：Bogie frame, the bogie frame be suitable to across Seat is connected on the track girder and with the car body；Travelling wheel, the travelling wheel is pivotably mounted on the steering structure On frame and coordinate on the upper surface of the track girder；Power set, the power set are arranged on the bogie frame And be connected with the travelling wheel；Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and coordinate On the side surface of the track girder.
According to one embodiment of present invention, the bogie also includes：Draw-gear, the draw-gear is arranged on institute State on bogie frame and be connected with the car body；Supported and suspended device, the supported and suspended device is arranged on the bogie It is connected on framework and with the car body.
To reach above-mentioned purpose, a kind of braking recovery method of train that another aspect of the present invention embodiment is proposed, including Following steps：The train is braked, and according to brake force generation braking electric energy, and the braking electric energy is fed back to and leads Draw net；Monitor the voltage of the Traction networks；Voltage selection battery or charging capacitor according to the Traction networks is to the braking electricity Can be absorbed；Voltage control energy-accumulating power station according to the Traction networks carries out charge or discharge.
The braking recovery method of the train for proposing according to embodiments of the present invention, brakes to train first, and according to system Power generation braking electric energy, and braking electric energy is fed back into Traction networks, the voltage of Traction networks is then monitored, and according to Traction networks Voltage controls battery or rechargeable battery to absorb the braking electric energy of train, if the voltage of Traction networks continues to raise, then Absorbed using energy-accumulating power station.Further, it is also possible to the voltage control energy-accumulating power station according to Traction networks discharges Traction networks, So as 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, if the train now on Traction networks is relatively more, the braking electric energy that will can be fed back Other trains are uniformly arrived, therefore the voltage of Traction networks will not rise much higher.If instead the train now on Traction networks is less, or The train that person now brakes is more, then the voltage of Traction networks will be raised, and in embodiments of the present invention, preferentially uses on-vehicle battery Absorbed with charging capacitor, if the voltage of Traction networks continues to raise after on-vehicle battery and charging capacitor absorb, then Absorbed using energy-accumulating power station.Because on-vehicle battery is just arranged on train, therefore preferentially use battery to be absorbed, keep away Exempt from appearance braking electric energy excessive, it is impossible to be rapidly absorbed or consume, so as to the problem that the electrical equipment for causing Traction networks is burned out.This hair Bright embodiment is absorbed by the battery on train, charging capacitor and energy-accumulating power station to braking electric energy, it is achieved thereby that 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, the parts of protection system improve the security of system.
According to one embodiment of present invention, it is described that battery or charging capacitor are selected to institute according to the voltage of the Traction networks Stating braking electric energy carries out absorption and specifically includes：Judge the voltage of the Traction networks whether more than the first predetermined threshold value；If described The voltage of Traction networks is more than first predetermined threshold value, then control braking electric energy described in the battery receptacle to think that the battery fills Electricity.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Voltage is less than the second predetermined threshold value；If the voltage of the Traction networks is less than second predetermined threshold value, the battery is controlled Stop absorbing the braking electric energy, wherein, second predetermined threshold value is less than first predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is more than the 3rd predetermined threshold value；If the voltage of the Traction networks is more than the 3rd predetermined threshold value, the charging is controlled Electric capacity receives the braking electric energy and thinks that the charging capacitor charges, wherein, the 3rd predetermined threshold value is pre- more than described first If threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is more than the 4th predetermined threshold value；If the voltage of the Traction networks is more than the 4th predetermined threshold value, control train is carried out Mechanical braking coordinates implementation electric braking to brake the train, wherein, the 4th predetermined threshold value is pre- more than described first If threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is more than the 5th predetermined threshold value；If the voltage of the Traction networks is more than the 5th predetermined threshold value, the energy storage is controlled Charged in power station.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is less than the 6th predetermined threshold value；If the voltage of the Traction networks is less than the 6th predetermined threshold value, control is described Energy-accumulating power station is discharged, wherein, the 6th predetermined threshold value is less than the 5th predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Judge the Traction networks Whether voltage is less than the 7th predetermined threshold value；If the voltage of the Traction networks is less than the 7th predetermined threshold value, the energy storage is controlled Power station is discharged to the Traction networks, meanwhile, control the battery to be discharged to the Traction networks, wherein, the described 7th Predetermined threshold value is less than the 6th predetermined threshold value.
According to one embodiment of present invention, the braking recovery method of the train also includes：Detect the contactor of train Whether disconnect；If detecting the contactor to disconnect, the battery is controlled for the train power supply, and control the train Limit Power operation.
Brief description of the drawings
Fig. 1 is the block diagram of the braking recovery device of the train according to the embodiment of the present invention；
Fig. 2 is the circuit theory diagrams of the braking recovery device of the train according to one embodiment of the invention；
Fig. 3 be according to a circuit theory diagrams for the braking recovery device of the train of specific embodiment of the invention, wherein, lead The voltage for drawing net is more than the first predetermined threshold value；
Fig. 4 is the circuit theory diagrams of the braking recovery device of the train according to another specific embodiment of the invention, wherein, The voltage of Traction networks is more than the 3rd predetermined threshold value；
Fig. 5 is the circuit theory diagrams of the braking recovery device of the train according to another specific embodiment of the invention, wherein, The voltage of Traction networks is less than the 6th predetermined threshold value；
Fig. 6 is according to a block diagram for the braking recovery system of the train of specific embodiment of the invention；
Fig. 7 is the block diagram of the braking recovery system of the train according to another specific embodiment of the invention；
Fig. 8 is the block diagram of the train according to the embodiment of the present invention；
Fig. 9 is according to a block diagram for the train of specific embodiment of the invention；
Figure 10 is the block diagram of the train according to another specific embodiment of the invention；
Figure 11 is according to a structural representation for the train of specific embodiment of the invention；
Figure 12 is the flow chart of the braking recovery method of the train according to the embodiment of the present invention；
Figure 13 is the flow chart of the braking recovery method according to one train of specific embodiment of the present invention；And
Figure 14 is the flow chart of the braking recovery method according to the train of another specific embodiment of the invention.
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 converters 204, charging capacitor 205, second The controller 207 of two-way DC/DC converters 206 and first；
Mechanical brake 208 and contactor detector 209；Second controller 301；
Bogie 20 and car body 30；
Bogie frame 21, travelling wheel 22, power set 23 and horizontal wheels 24；
Draw-gear 25 and supported and suspended device 26.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
As shown in figure 1, being the block diagram of the braking recovery system of the train according to the embodiment of the present invention.Such as Fig. 1 institutes Show, the braking recovery system of the train includes：Traction networks 1, the multiple trains 2 being connected on Traction networks 1, and it is arranged on traction 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 power taking among net.In one embodiment of the invention, train 2 is straddle-type monorail train.In an embodiment of the present invention The braking electric energy that train 2 is produced can be reclaimed by the battery of train 2, charging capacitor and/or energy-accumulating power station 3.For For train 2, the braking electric energy of itself generation can be not only absorbed, it is also possible to absorb the braking electric energy of other trains 2 generation.By In train 2 when to 1 regenerative braking electric energy of Traction networks, the voltage of Traction networks 1 can be raised, therefore train 2 and energy-accumulating power station 3 can be with Voltage to Traction networks 1 is monitored.When Traction networks 1 voltage raise when, can by the battery of train 2, charging capacitor or Energy-accumulating power station 3 is absorbed, and so as to the voltage for preventing Traction networks 1 exceedes 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 cannot obtain electric energy from Traction networks 1, such as lead Draw net 1 to break down, or, when not having Traction networks 1, train 2 can switch to battery power.In an embodiment of the present invention, Among energy-accumulating power station 3 can be set AT STATION, by the braking electric energy of absorption for station is powered, 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 according to predeterminable range interval setting, for example 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 be the block diagram of the braking recovery system of the train according to one embodiment of the invention, in order to It is easy to description, an energy-accumulating power station is illustrate only in this embodiment.Train 2 includes：Electric brake 201, battery 202, distribution Device 203, the first two-way DC/DC converters 204, charging capacitor 205, the controller of the second two-way DC/DC converters 206 and first 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 converters 204 is connected with battery 204, the other end of the first two-way DC/DC converters 204 It is connected with the node between distributor 203 and electric brake 201.One end of second two-way DC/DC converters 206 and charging capacitor 205 are connected, and the other end of the second two-way DC/DC converters 206 is connected with the node between distributor 203 and electric brake 201. First controller 207 is connected with distributor 203, the two-way DC/DC converters 206 of the first two-way DC/DC converters 204 and second, First controller 207 is used to control distributor 203, the first two-way DC/DC converters 204 and second two-way in train braking DC/DC converters 206 will brake electric energy feedback and control the first two-way DC/DC to Traction networks 1, and according to the voltage U of Traction networks 1 The two-way DC/DC converters 206 of converter 204 and second are opened, and control the first two-way DC/DC converters 204 and second two-way DC/DC converters 206 enter charge mode, to select battery 202 or charging capacitor 205 to inhale the braking electric energy of train 2 Receive, such as the first controller 207 controls the first two-way DC/DC converters 204 to open, and controls the first two-way DC/DC converters 204 enter charge mode, so that battery 202 is absorbed, the second two-way DC/DC converters 206 of control are opened, and control second Two-way DC/DC converters 206 enter charge mode, so that charging capacitor 205 is absorbed.In an embodiment of the present invention, store 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 be wrapped Multiple 160KW-80KWh modules are included, the positive pole of multiple 160KW-80KWh modules is connected, and by positive pole cabinet and Traction networks 1 just Extremely it is connected, the negative pole of multiple 160KW-80KWh modules is connected, and is connected with the negative pole of Traction networks 1 by negative pole cabinet.
Specifically, when train 2 is braked, traction electric machine is changed into generator operating mode, electricity system from motor working condition Dynamic device 201 produces braking electric energy and braking electric energy is fed back into Traction networks.When the train negligible amounts on Traction networks 1 are Traction networks Load on 1 is smaller, or on Traction networks 1 brake train it is more when, feed back to the braking electric energy on Traction networks 1 can exceed lead Electric energy needed for drawing the train operation on net 1, so as to cause the rising of the voltage U of Traction networks.Now, the first controller 207 is real When monitoring Traction networks 1 voltage U, it is preferential that train 2 is controlled by the first controller 207 when the voltage U of Traction networks 1 is raised First two-way DC/DC converters 204 are opened, and control the first two-way DC/DC converters 204 to enter charge mode, so that battery 202 absorb braking electric energy, if the voltage U of Traction networks 1 continues to raise, the first controller 207 controls second pair of train again Opened to DC/DC converters 206, and control the second two-way DC/DC converters 206 to 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 raise, then the control of second controller 301 energy storage electricity Stand 3 from Traction networks 1 absorb electric energy charged.Similarly, it is 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, now the electricity of the real-time monitoring Traction networks 1 of second controller 301 of energy-accumulating power station 3 Pressure U, when the voltage U reductions of Traction networks 1, preferentially controls energy-accumulating power station 3 to be discharged improving and leads by second controller 301 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 and be discharged 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, can absorb the braking moment of train 2 The larger braking electric energy for producing, and the braking limited energy that the battery 202 of train 2 can absorb in a short time, if row The braking electric energy that the braking of car 2 is produced is larger, then the control of the first controller 207 charging capacitor 205 is absorbed.
A specific example of the 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 be may be provided among station, and the braking electric energy for reclaiming is used to be supplied for illumination, air-conditioning, the multimedia at station etc. Electricity.So, braking electric energy can be for recycling and reuse by battery 202 and energy-accumulating power station 3, while power transformation can be reduced The load stood, has saved the energy.
Also, it should be noted that battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed, by In the distance between energy-accumulating power station 3 and train 2 farther out, energy-accumulating power station 3 is caused to absorb braking electric energy delayed.Therefore, in the present invention Embodiment in prioritizing selection battery 202 absorb braking electric energy, with realize brake electric energy quick absorption, so as to prevent not inhaled Receive or the braking electric energy of consumption causes the voltage U of Traction networks to raise, protect the parts of system, it is to avoid on Traction networks 1 Electrical equipment is damaged, and improves the security of system.
Another specific embodiment of the invention, if it is Traction networks 1 there was only the operation of rows of cars 2 on Traction networks 1 It is upper to absorb braking electric energy without other trains, and the braking electric energy that the braking of train 2 is produced is larger, then brake electric energy main by energy storage Power station 3 absorbs, and for example the control of the first controller 207 battery 202 absorbs the 30% of braking electric energy first, then second controller 301 control energy-accumulating power stations 3 absorb the 70% of braking electric energy, to complete the recovery of braking electric energy.
Another specific embodiment of the invention, if there is multiple row train 2 to run on Traction networks 1, and in energy storage electricity Stand after 3 absorption braking electric energy, the voltage U of Traction networks 1 continues to raise, then can be by the non-brake train on Traction networks 1 Charged to the battery 202 of non-brake train.Assuming that the braking electric energy for not absorbed or being consumed on Traction networks 1 is Q ＇, traction There are N row trains on net 1, then the average value of the braking electric energy that the battery 202 of each train absorbs on Traction networks 1 is Q ＇/N.At this In inventive embodiment, because the braking electric energy that train braking is produced is very big, such as shown in table 1, it can be seen that in AW2 and The braking electric energy more than 220KW can be produced under the operating mode of AW3.If now absorbing these braking electricity using the on-vehicle battery of train Can, then the on-vehicle battery of train can be caused very big.Therefore in an embodiment of the present invention, for such situation using battery and Energy-accumulating power station is combined and absorbed, so as to avoid that substantial amounts of battery is set on train.
Table 1
Thus, the embodiment of the present invention absorbs braking electric energy by controlling battery and energy-accumulating power station on train, realizes system 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, protection system parts improve security of system.
According to one embodiment of present invention, energy-accumulating power station 3 can be multiple, and multiple energy-accumulating power stations 3 are according between predeterminable range Every setting.In an embodiment of the present invention, it is car with the braking electric energy that will be absorbed among energy-accumulating power station 3 can be set AT STATION Station is powered, and for example, the air-conditioning at station, multimedia, light etc. are powered.
According to one embodiment of present invention, interior per 3-6 kilometers two energy-accumulating power stations 3, the power of energy-accumulating power station 3 can be set Can be 0.5-2MW.Wherein, those skilled in the art can select suitable energy-accumulating power station 3 according to the specific operating environment of train 2 Quantity and power.
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 to Traction networks 1 when train 2 starts braking, wherein, First controller 207 is judging the voltage U of Traction networks 1 more than the first predetermined threshold value U1, such as during 845V, control first is two-way DC/DC converters 204 are opened, and control the first two-way DC/DC converters 204 to enter charge mode, so that battery 202 receives system Electrokinetic energy thinks that battery 202 charges.In an embodiment of the present invention, the braking electric energy of train 2 first feeds back to Traction networks, can cause The voltage U of Traction networks 1 is raised, the voltage U of real-time detection Traction networks 1, when the voltage U of Traction networks 1 is more than the first predetermined threshold value U1 When, the first controller 207 controls the first two-way DC/DC converters 204 to open, and controls the first two-way DC/DC converters 204 to enter Enter charge mode, and control the second two-way DC/DC converters 206 to close, so that battery 202 absorbs braking electric energy.Now, 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 is produced 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 converters 204 enter charge mode, on high-tension side DC power conversion is and electricity by the first two-way DC/DC converters 204 The direct current of the voltage matches in pond 202, with the i.e. control battery 202 absorption braking electric energy that 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 is judging the voltage U of Traction networks 1 less than the second predetermined threshold value U2, such as during 830V, control first Two-way DC/DC converters 204 close so that battery 202 stop absorb braking electric energy, wherein, the second predetermined threshold value U2 be less than first Predetermined threshold value U1.Now, the braking electric energy that train 2 is produced feeds back to Traction networks 1 by distributor 203, and train 2 battery 202nd, 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 raised, the voltage U of real-time detection Traction networks, if the voltage U of Traction networks is more than the first predetermined threshold value U1, such as 845V, The braking electric energy for illustrating now to feed back on Traction networks 1 is superfluous, then the first controller 207 controls the first two-way DC/DC converters 204 are operated in charge mode absorbs braking electric energy with by battery 202.Now, the braking electric energy that train 2 is produced passes through distributor 203 feed back to Traction networks 1, while battery 202 is charged by the first two-way DC/DC converters 204, i.e., by battery 202 absorb partial brake electric energy.If the voltage U of Traction networks is less than the second predetermined threshold value U2, such as 830V afterwards, illustrate now The braking electric energy fed back on Traction networks 1 has basically reached balance with the load request on Traction networks 1, then the first controller 207 The first two-way DC/DC converters 204 are controlled to close.Now, battery 202 stops absorbing braking electric energy, the braking electricity that train 2 is produced Traction networks 1 can be fed back to by distributor 203.
The battery 202 of embodiment of the present invention prioritizing selection train 2 absorbs braking electric energy, to realize braking the quick suction of electric energy Receive, so that, prevent the braking electric energy not consumed from causing the voltage U of Traction networks to raise, it is to avoid the device failure on Traction networks 1.
According to one embodiment of present invention, as shown in figure 4, the first controller 207 Traction networks 1 voltage U more than the During three predetermined threshold value U3, the second two-way DC/DC converters 206 of control receive braking electric energy and think charging by charging capacitor 205 Electric capacity 205 charges, wherein, the 3rd predetermined threshold value U3 is more than the first predetermined threshold value U1.Now, the electric energy in circuit is according to Fig. 4 institutes Show the direction flowing that arrow is indicated, the braking electric energy that train 2 is produced feeds back to Traction networks 1, and train 2 charging capacitor 205 Absorb braking electric energy.
Specifically, if as shown in figure 4, the train on Traction networks 1 is less, or the train 2 now braked is more, then After the battery 202 of train 2 starts to absorb braking electric energy, the voltage U of Traction networks 1 continues to increase, when the voltage U of Traction networks is big When the 3rd predetermined threshold value U3, the first controller 207 controls the second two-way DC/DC converters 206 to open, and control second is two-way DC/DC converters 206 enter charge mode, so that charging capacitor 205 receives braking electric energy and thinks that charging capacitor 205 charges.
According to one embodiment of present invention, second controller 301 is more than the 5th predetermined threshold value in the voltage U of Traction networks 1 During U5, such as 855V, control energy-accumulating power station 3 is charged.In an embodiment of the present invention, the battery 202 when train 2 and charging Electric capacity 205 start absorb braking electric energy when, now because the train on Traction networks 1 is less, or the train 2 now braked compared with It is many, therefore the voltage of Traction networks 1 can also continue to increase.When the voltage U of Traction networks 1 is more than the 3rd predetermined threshold value U3, the second control The control energy-accumulating power station 3 of device processed 301 absorbs braking electric energy and is charged, so as to the voltage U for avoiding Traction networks 1 exceedes 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 the Six predetermined threshold value U6, such as during 810V, control energy-accumulating power station 3 is discharged, wherein, the 6th predetermined threshold value U6 presets less than the 5th Threshold value U5.In an embodiment of the present invention, if the more voltage that may result in Traction networks of train on Traction networks 1 declines, this When in order to avoid Traction networks voltage less than minimum rated voltage, it is necessary to control energy-accumulating power station 3 to be discharged to Traction networks 1. There are multiple energy-accumulating power stations 3, prioritizing selection electricity energy-accumulating power station 3 high in a specific embodiment of the invention, on Traction networks 1 Discharged to Traction networks, the power of such as electricity electric discharge of energy-accumulating power station 3 high is big, the power of the low electric discharge of energy-accumulating power station 3 of electricity is omited It is small, so as 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 predetermined threshold value U7, the second control The control energy-accumulating power station 3 of device 301 is discharged to Traction networks 1, meanwhile, the first controller 207 controls the first two-way DC/DC converters 204 open, and control the first two-way DC/DC converters 204 to enter discharge mode, so that the battery 202 of train 2 is to Traction networks 1 Discharged, wherein, the 7th predetermined threshold value U7 is less than the 6th predetermined threshold value U6.In the present embodiment, if the voltage of Traction networks 1 U is too small, then control energy-accumulating power station 3 and the battery of train 2 to be discharged, so as to 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 predetermined threshold value U8, the control energy-accumulating power station 3 of second controller 301 stops electric discharge, wherein, the 8th predetermined threshold value U8 is more than 6th predetermined threshold value U6.
Specifically, the voltage U of the real-time monitoring Traction networks 1 of second controller 301, when the voltage U of Traction networks 1 is more than the 5th When predetermined threshold value U5, such as 855V, the control energy-accumulating power station 3 of second controller 301 absorbs braking electric energy and is charged, to mitigate electricity Pond 202 absorbs the pressure of braking electric energy, and the maximum rated voltage Un of Traction networks 1 is exceeded so as to the voltage U for avoiding Traction networks 1.Such as The more voltage that may result in Traction networks of train on fruit Traction networks 1 declines, when the voltage U of Traction networks 1 is less than the 6th default threshold When value U6, such as 810V, the control energy-accumulating power station 3 of second controller 301 is discharged 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 pressure U is more than the 8th predetermined threshold value U8, illustrate now to feed back to the load base on braking electric energy and the Traction networks 1 on Traction networks 1 Originally balance has been reached, then the control of second controller 301 energy-accumulating power station 3 stops electric discharge.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 may proceed to reduce, when the electricity of Traction networks When pressure U is less than the 7th predetermined threshold value U7, the control energy-accumulating power station 3 of second controller 301 is discharged to Traction networks 1, meanwhile, first Controller 207 controls the first two-way DC/DC converters 204, and controls the first two-way DC/DC converters 204 to enter discharge mode, So that the battery 202 of train 2 is discharged to Traction networks 1, so as to the voltage of Traction networks 1 quickly be improved.Wherein, battery 202 Discharge power for battery 202 maximum allowable discharge power and the first two-way DC/DC converters 204 maximum allowable electric discharge work( Smaller value in rate.
According to one embodiment of present invention, as shown in fig. 6, train also includes：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 more than the 4th predetermined threshold value U4, the first control 207 control machinery brake of device 208 starts cooperation implementation electric brake 201 and train is braked, wherein, the 4th predetermined threshold value U4 is more than the first predetermined threshold value U1.In an embodiment of the present invention, if the train on Traction networks 1 is less, or now brake 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 May proceed to increase, when the voltage of Traction networks 1 is more than the 4th predetermined threshold value U4, the control machinery brake 208 of the first controller 207 Start, auxiliary braking is carried out with 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 may proceed to increase, the voltage U of the real-time monitoring Traction networks of the first controller 207, if the voltage U of Traction networks pre- more than the 4th If threshold value U4, then the control machinery brake 208 of the first controller 207 starts, so, while electric braking is carried out 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, so as to avoid the electricity of Traction networks Pressure U exceedes maximum rated voltage, and can realize precisely quick parking.
It should be noted that when the travel speed of train 2 is less than 5Km/h or needs inlet parking, can equally control Mechanical brake processed 208 is opened and braked with to train 2.
According to one embodiment of present invention, train 2 also includes：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 more than the first power threshold Q1, such as 80%, the then two-way DC/DC changes of the control of the first controller 207 first Parallel operation 204 is closed so that battery stops absorbing braking electric energy.In an embodiment of the present invention, the charge power of battery 202 and put Electrical power is restricted, and the electricity after braking electric energy is absorbed of battery 202 can increase, if the electricity of battery 202 is excessive, can influence The service life of battery 202, therefore, when electricity Q is more than the first power threshold Q1, control the first two-way DC/DC converters 204 Close, braking electric energy is absorbed to control battery 202 to stop.According to one embodiment of present invention, train 2 also includes：Second electricity Amount detector, the electricity Q ＇ for detecting charging capacitor 205, wherein, when charging capacitor 205 absorbs braking electric energy, if filled The electricity Q ＇ of electric capacity 205 are more than the second power threshold Q2, then the first controller 207 controls the second two-way DC/DC converters 206 Close so that charging capacitor 205 stops absorbing braking electric energy.
According to one embodiment of present invention, as shown in fig. 7, train 2 also includes：Contactor detector 209, contactor inspection Survey device 209 to be connected with the first controller 207, contactor detector 209 is used to detect whether the contactor of train disconnects, wherein, After detecting contactor and disconnecting, the control distributor 203 of the first controller 207 is closed, and controls the first two-way DC/DC conversion Device 204 controls train 2 to limit Power operation into discharge mode so that battery 202 is powered for train 2.
Specifically, when contactor detector 209 detects contactor to be disconnected, illustrate that train 2 is in abnormal electrical power supply shape State, the first controller 207 judges that train 2 enters emergency driving pattern, and sends emergent traction signal, first two-way to control DC/DC converters 204 are opened, and control the first two-way DC/DC converters 204 to enter discharge mode, and now, battery 202 is row Car is powered.Meanwhile, the discharge power of the control battery 202 of the first controller 207 is less than or equal to predetermined power threshold value such as 70KW, with Train 2 is set to operate in limit power rating.
Thus, the emergency driving of train is realized by battery 202, it is to avoid the train scheduling for causing of casting anchor on the way is difficult Problem, while avoiding failure train occupation working line.
To sum up, the braking recovery system of the train for proposing according to embodiments of the present invention, the first controller is in train braking Control distributor, the first two-way DC/DC converters and the second two-way DC/DC converters feed back to Traction networks by electric energy is braked, first Braking electric energy is absorbed using battery or charging capacitor, when the voltage of Traction networks continues to raise, recycles energy-accumulating power station Absorbed.Additionally, energy-accumulating power station can also discharge Traction networks according to the voltage of Traction networks, so as 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, if the train now on Traction networks is relatively more, the braking electric energy for feeding back other trains can be uniformly arrived, because The voltage of this Traction networks will not rise much higher.If instead the train now on Traction networks is less, or the train now braked More, then the voltage of Traction networks will be raised, and in embodiments of the present invention, preferentially be inhaled using on-vehicle battery and charging capacitor Receive, if the voltage of Traction networks continues to raise after on-vehicle battery and charging capacitor absorb, reusing energy-accumulating power station is carried out Absorb.Because on-vehicle battery is just arranged on train, therefore battery is preferentially used to be absorbed, it is to avoid braking electric energy mistake occur Greatly, it is impossible to be rapidly absorbed or consume, so as to the problem that the electrical equipment for causing Traction networks is burned out.The embodiment of the present invention passes through train On battery, charging capacitor and energy-accumulating power station braking electric energy is absorbed, it is achieved thereby that the recovery of braking electric energy and sharp again With, energy waste is reduced, reduce the load of Traction networks.Also, the embodiment of the present invention can be with the electricity of effective monitoring Traction networks Pressure, the parts of protection system improve the security of system.
As shown in figure 8, being the block diagram of the train according to 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 converters 204, charging capacitor 205, the second two-way DC/ The controller 207 of DC converters 206 and first.
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 converters 204 is connected with battery 204, the other end of the first two-way DC/DC converters 204 It is connected with the node between distributor 203 and electric brake 201.One end of second two-way DC/DC converters 206 and charging capacitor 205 are connected, and the other end of the second two-way DC/DC converters 206 is connected with the node between distributor 203 and electric brake 201. First controller 207 is connected with distributor 203, the two-way DC/DC converters 206 of the first two-way DC/DC converters 204 and second, First controller 207 is used to control distributor 203, the first two-way DC/DC converters 204 and second two-way in train braking DC/DC converters 206 will brake electric energy feedback and control the first two-way DC/DC to Traction networks 1, and according to the voltage U of Traction networks 1 The two-way DC/DC converters 206 of converter 204 and second, to select battery 202 or charging capacitor 205 to the braking electric energy of train 2 Absorbed, such as the first controller 207 controls the first two-way DC/DC converters 204 to open, and controls the first two-way DC/DC Converter 204 enters charge mode, so that battery 202 is absorbed, the second two-way DC/DC converters 206 of control are opened, and are controlled Make the second two-way DC/DC converters 206 and enter charge mode, so that charging capacitor 205 is absorbed.
Specifically, when train 2 is braked, traction electric machine is changed into generator operating mode, electricity system from motor working condition Dynamic device 201 produces braking electric energy and braking electric energy is fed back into Traction networks.When the train negligible amounts on Traction networks 1 are Traction networks Load on 1 is smaller, or on Traction networks 1 brake train it is more when, feed back to the braking electric energy on Traction networks 1 can exceed lead Electric energy needed for drawing the train operation on net 1, so as to cause the rising of the voltage U of Traction networks.Now, the first controller 207 is real When monitoring Traction networks 1 voltage U, it is preferential that train 2 is controlled by the first controller 207 when the voltage U of Traction networks 1 is raised First two-way DC/DC converters 204 are opened, and control the first two-way DC/DC converters 204 to enter charge mode, so that battery 202 absorb braking electric energy, if the voltage U of Traction networks 1 continues to raise, the first controller 207 controls second pair of train again Opened to DC/DC converters 206, and control the second two-way DC/DC converters 206 to 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, can absorb the braking moment of train 2 The larger braking electric energy for producing, and the braking limited energy that the battery 202 of train 2 can absorb in a short time, if row The braking electric energy that the braking of car 2 is produced is larger, then the control of the first controller 207 charging capacitor 205 is absorbed.
A specific example of the 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.
Also, it should be noted that battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed.Cause This, prioritizing selection battery 202 absorbs braking electric energy in an embodiment of the present invention, to realize braking the quick absorption of electric energy, from And prevent the braking electric energy for not absorbed or being consumed from causing the voltage U of Traction networks to raise, protect the parts of system, it is to avoid Electrical equipment on Traction networks 1 is damaged, and improves the security of system.
According to one embodiment of present invention, fed to Traction networks when train starts braking, wherein, the first controller 207 are more than the first predetermined threshold value U1 in the voltage U of Traction networks 1, such as during 845V, the first two-way DC/DC converters 204 of control enter Enter charge mode so that battery 202 receives braking electric energy and thinks that battery 202 charges.In an embodiment of the present invention, the system of train 2 Electrokinetic energy first feeds back to Traction networks, and the voltage U of Traction networks 1 can be caused to raise, and the voltage U of real-time detection Traction networks 1 works as Traction networks When 1 voltage U is more than the first predetermined threshold value U1, the first controller 207 controls the first two-way DC/DC converters 204 to open, and controls Make the first two-way DC/DC converters 204 and enter charge mode, and control the second two-way DC/DC converters 206 to close, 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 converters 204 when entering charge mode, and the first two-way DC/DC converters 204 are by voltage that on high-tension side DC power conversion is with battery 202 The direct current of matching, with the i.e. control battery 202 absorption braking electric energy that 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 is less than the second predetermined threshold value U2 in the voltage U of Traction networks 1, such as during 830V, control first is two-way DC/DC converters 204 are closed so that battery stops absorbing braking electric energy, wherein, the second predetermined threshold value 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 raised, The voltage U of real-time detection Traction networks, if the voltage U of Traction networks is more than the first predetermined threshold value U1, such as 845V, illustrates now anti- The braking electric energy being fed on Traction networks 1 is superfluous, then first two-way DC/DC converters 204 of the control of the first controller 207 are operated in and fill Power mode absorbs braking electric energy with by battery 202.Now, the braking electric energy that train 2 is produced is fed back to by distributor 203 and led Draw net 1, while being charged to battery 202 by the first two-way DC/DC converters 204, i.e., absorbing part by battery 202 makes Electrokinetic energy.If the voltage U of Traction networks is less than the second predetermined threshold value U2, such as 830V afterwards, illustrate now to feed back to Traction networks 1 On braking electric energy and Traction networks 1 on load request basically reached balance, then the first controller 207 controls first two-way DC/DC converters 204 are closed.Now, battery 202 stops absorbing braking electric energy, and the braking electric energy that train 2 is produced passes through distributor 203 feed back to Traction networks 1.
The battery 202 of embodiment of the present invention prioritizing selection train 2 absorbs braking electric energy, to realize braking the quick suction of electric energy Receive, so that, prevent the braking electric energy not consumed from causing the voltage U of Traction networks to raise, it is to avoid the device failure on Traction networks 1.
According to one embodiment of present invention, the first controller 207 is more than the 3rd predetermined threshold value in the voltage U of Traction networks 1 During U3, the second two-way DC/DC converters 206 of control are into charge mode so that charging capacitor 205 receives braking electric energy and thinks and fill Electric capacity 205 charges, wherein, the 3rd predetermined threshold value U3 is more than the first predetermined threshold value U1.
Specifically, if the train on Traction networks 1 is less, or the train 2 now braked is more, then in train 2 Battery 202 starts after absorption braking electric energy, and the voltage U of Traction networks 1 continues to increase, when the voltage U of Traction networks is pre- more than the 3rd If during threshold value U3, the first controller 207 controls the second two-way DC/DC converters 206 to open, and controls the second two-way DC/DC to become Parallel operation 206 enters charge mode, so that charging capacitor 205 receives braking electric energy and thinks that charging capacitor 205 charges.
According to one embodiment of present invention, as shown in figure 9, train 2 also includes：Mechanical brake 208, for train Carry out mechanical braking.
According to one embodiment of present invention, the first controller 207 is more than the 4th predetermined threshold value in the voltage U of Traction networks 1 During U4, control machinery brake 208 starts cooperation implementation electric brake 201 and train is braked, wherein, the 4th predetermined threshold value U4 is more than the first predetermined threshold value U1.In an embodiment of the present invention, if the train on Traction networks 1 is less, or now brake 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 May proceed to increase, when the voltage of Traction networks 1 is more than the 4th predetermined threshold value U4, the control machinery brake 208 of the first controller 207 Start, auxiliary braking is carried out with 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 may proceed to increase, the voltage U of the real-time monitoring Traction networks of the first controller 207, if the voltage U of Traction networks pre- more than the 4th If threshold value U4, then the control machinery brake 208 of the first controller 207 starts, so, while electric braking is carried out 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, so as to avoid the electricity of Traction networks Pressure U exceedes maximum rated voltage, and can realize precisely quick parking.
It should be noted that when the travel speed of train 2 is less than 5Km/h or needs inlet parking, can equally control Mechanical brake processed 208 is opened and braked with to train 2.
According to one embodiment of present invention, train 2 also includes：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 more than the first power threshold Q1, such as 80%, the then two-way DC/DC changes of the control of the first controller 207 first Parallel operation 204 is closed so that battery stops absorbing braking electric energy.In an embodiment of the present invention, the charge power of battery 202 and put Electrical power is restricted, and the electricity after braking electric energy is absorbed of battery 202 can increase, if the electricity of battery 202 is excessive, can influence The service life of battery 202, when electricity Q is more than the first power threshold Q1, the first two-way DC/DC converters 204 of control are closed, Braking electric energy is absorbed to control battery 202 to stop.According to one embodiment of present invention, train 2 also includes：Second electric power detection Device, the second coulometric detector is 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 are more than the second power threshold Q2, then the first controller 207 control the second two-way DC/DC converters 206 close so that charging capacitor 205 stop absorb braking electricity Energy.
According to one embodiment of present invention, as shown in Figure 10, train 2 also includes：Contactor detector 209, contactor Detector 209 is connected with the first controller 207, and contactor detector 209 is used to detect whether the contactor of train disconnects, its In, after detecting contactor and disconnecting, the control distributor 203 of the first controller 207 is closed, and controls the first two-way DC/DC Converter 204 is opened, and controls the first two-way DC/DC converters 204 to enter discharge mode, so that battery 202 is supplied for train 2 Electricity, and control train 2 to limit Power operation.
Specifically, when contactor detector 209 detects contactor to be disconnected, illustrate that train 2 is in abnormal electrical power supply shape State, the first controller 207 judges that train 2 enters emergency driving pattern, and sends emergent traction signal, first two-way to control DC/DC converters 204, and control the first two-way DC/DC converters 204 to enter discharge mode, now, battery into charge mode 202 is train power supply.Meanwhile, the discharge power of the control battery 202 of the first controller 207 is less than or equal to predetermined power threshold value for example 70KW, so that train 2 operates in limit power rating.
Thus, the emergency driving of train is realized by battery 202, it is to avoid the train scheduling for causing of casting anchor on the way is difficult Problem, while avoiding failure train occupation working line.
A specific embodiment of the invention, train 2 can be straddle-type monorail train.
According to one embodiment of present invention, as shown in figure 11, train 2 also includes：Bogie 20 and car body 30, wherein, Bogie 20 is suitable to straddle seat on track girder；Car body 30 is connected with bogie 20 and is drawn by bogie 20 and travelled along track girder.
According to one embodiment of present invention, as shown in figure 11, bogie 20 includes：Bogie frame 21, travelling wheel 22, Power set 23 and horizontal wheels 24, wherein, bogie frame 21 is suitable to straddle seat on track girder and is connected with car body 30；Travelling wheel 22 are pivotably mounted on bogie frame 21 and coordinate on the upper surface of track girder；Power set 23 are arranged on bogie It is connected on framework 21 and with travelling wheel 22；Horizontal wheels 24 are pivotably mounted on bogie frame 21 and coordinate in track On the side surface of beam.
According to one embodiment of present invention, as shown in figure 11, bogie 20 also includes:Draw-gear 25 and supported and suspended Device 26, wherein, draw-gear 25 is arranged on bogie frame 21 and is connected with car body 30；Supported and suspended device 26 is arranged on It is connected on bogie frame 21 and with car body 30.
To sum up, the train for proposing according to embodiments of the present invention, when being braked, the first controller is in train braking time control Distributor processed, the first two-way DC/DC converters and the second two-way DC/DC converters feed back to Traction networks by electric energy is braked, and utilize Battery or charging capacitor absorb to braking electric energy.In embodiments of the present invention, first will braking electricity when train is braked Traction networks can be fed back to, if the train now on Traction networks is relatively more, the braking electric energy that will can be fed back uniformly is arranged to other Car, therefore the voltage of Traction networks will not rise much higher.If instead the train now on Traction networks is less, or now brake Train is more, then the voltage of Traction networks will be raised, and in embodiments of the present invention, is preferentially entered using on-vehicle battery and charging capacitor Row absorbs.Because on-vehicle battery is just arranged on train, therefore battery is preferentially used to be absorbed, it is to avoid braking electric energy occur It is excessive, it is impossible to be rapidly absorbed or consume, so as to the problem that the electrical equipment for causing Traction networks is burned out.The embodiment of the present invention is by row Battery and charging capacitor on car absorb to braking electric energy, it is achieved thereby that the recycling and reuse of braking electric energy, are reduced 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 parts of system, improve the security of system.
As shown in figure 12, be train according to the embodiment of the present invention braking recovery method flow chart.As shown in figure 12, The method is comprised the following steps：
S10：Train is braked, and according to brake force generation braking electric energy, and braking electric energy is fed back into Traction networks.
S20：Monitor the voltage of Traction networks.
S30：Voltage selection battery or charging capacitor according to Traction networks absorb to braking electric energy.
S40：Voltage control energy-accumulating power station according to Traction networks carries out charge or discharge.
Specifically, when being braked to train, according to brake force generation braking electric energy, and braking electric energy is fed back to Traction networks.When the train negligible amounts on Traction networks are smaller load on Traction networks, or the train braked on Traction networks compared with When many, the electric energy needed for the braking electric energy on Traction networks can exceed the train operation on Traction networks is fed back to, so as to cause traction The voltage U of net is raised, the voltage U of real-time monitoring Traction networks, when the voltage U of Traction networks is raised, controls battery to absorb system first Electrokinetic energy, if the voltage U of Traction networks continues to raise, then controls train charging capacitor to absorb braking electric energy.Meanwhile, continue to supervise The voltage of Traction networks is surveyed, if the voltage U of Traction networks continues to rise after the battery and charging capacitor of control train are absorbed Height, then control energy-accumulating power station to absorb braking electric energy and charged.Similarly, when the train quantity on Traction networks is more, that is, draw 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, energy-accumulating power station is controlled to be discharged to improve the voltage of Traction networks first, if the voltage U of Traction networks continues to reduce, Control battery is discharged to improve the voltage of Traction networks.
In an embodiment of the present invention, charging capacitor itself charging and discharging is rapid, can absorb the generation of train braking moment Larger braking electric energy, and the braking limited energy that the battery of train can absorb in a short time, if train braking is produced Raw braking electric energy is larger, then control charging capacitor to be absorbed.
A specific example of the invention, battery can be iron cell or ferric phosphate lithium cell.
It should be noted that battery is set 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 it is delayed.Therefore, prioritizing selection is electric in an embodiment of the present invention Pond absorbs braking electric energy, to realize braking the quick absorption of electric energy, so as to prevent the braking electric energy for not absorbed or being consumed from drawing The voltage U for playing Traction networks is raised, and protects the parts of system, it is to avoid the electrical equipment on Traction networks is damaged, and improves the peace of system Quan Xing.
Thus, the embodiment of the present invention absorbs braking electric energy by controlling the battery on train, realizes returning for braking electric energy Receive and recycle, 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, protection system parts improve security of system.
According to one embodiment of present invention, the voltage selection battery or charging capacitor according to Traction networks enter to braking electric energy Row absorption is specifically included：Judge the voltage U of Traction networks whether more than the first predetermined threshold value U1, such as 845V；If Traction networks Voltage U is more than the first predetermined threshold value U1, then control battery receptacle braking electric energy to think that battery charges.In embodiments of the invention In, the braking electric energy of train first feeds back to Traction networks, the voltage U of Traction networks can be caused to raise, the voltage of real-time detection Traction networks U, when the voltage U of Traction networks is more than the first predetermined threshold value U1, controls the first two-way DC/DC converters of train to enter charging mould Formula, and control the second two-way DC/DC converters of train to close, so that battery absorbs braking electric energy.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge that the voltage U of Traction networks is less than Second predetermined threshold value U2, such as 830V；If the voltage U of Traction networks is less than the second predetermined threshold value U2, control battery stops inhaling Braking electric energy is received, wherein, the second predetermined threshold value U2 is less than the first predetermined threshold value U1.In an embodiment of the present invention, in control electricity Pond is absorbed after braking electric energy, and the voltage of Traction networks can decline, when the voltage U of Traction networks is less than the second predetermined threshold value U2, control First two-way DC/DC converters of train processed are closed so that battery stops absorbing braking electric energy.
The battery of embodiment of the present invention prioritizing selection train absorbs braking electric energy, to realize braking the quick absorption of electric energy, So as to prevent the braking electric energy not consumed from causing the voltage U of Traction networks to raise, it is to avoid the device failure on Traction networks.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage U whether More than the 3rd predetermined threshold value U3；If the voltage U of Traction networks is more than the 3rd predetermined threshold value U3, control charging capacitor receives braking Electric energy thinks that charging capacitor charges, wherein, the 3rd predetermined threshold value U3 is more than the first predetermined threshold value U1.
Specifically, if the train on Traction networks is less, or the train now braked is more, then in the battery of train Start after absorption braking electric energy, the voltage U of Traction networks continues to increase, when the voltage U of Traction networks is more than the 3rd predetermined threshold value U3 When, control the second two-way DC/DC converters of train to receive braking electric energy by charging capacitor and think that charging capacitor charges.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage U whether More than the 5th predetermined threshold value U5；If the voltage U of Traction networks is more than the 5th predetermined threshold value U5, control energy-accumulating power station is filled Electricity.In an embodiment of the present invention, when the battery and charging capacitor of train start to absorb braking electric energy, now due to Traction networks On train it is less, or the train now braked is more, therefore the voltage of Traction networks can also continue to increase.When the electricity of Traction networks When pressure U is more than the 3rd predetermined threshold value U3, control energy-accumulating power station absorbs braking electric energy and is charged, so as to avoid the voltage of Traction networks U exceedes maximum rated voltage.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage U whether Less than the 6th predetermined threshold value U6, such as 810V；If the voltage U of Traction networks is less than the 6th predetermined threshold value U6, control energy storage electricity Station is discharged, wherein, the 6th predetermined threshold value U6 is less than the 5th predetermined threshold value U5.In an embodiment of the present invention, if traction The more voltage that may result in Traction networks of online train declines, now in order to avoid the voltage of Traction networks is less than minimum rated electricity Pressure is, it is necessary to control energy-accumulating power station to be discharged to Traction networks.In one particular embodiment of the present invention, exist on Traction networks many Individual energy-accumulating power station, prioritizing selection electricity energy-accumulating power station high discharges to Traction networks, the work(of such as electricity energy-accumulating power station electric discharge high Rate is big, and the power of the low energy-accumulating power station electric discharge of electricity is smaller, so as to reach the electric quantity balancing between energy-accumulating power station.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage U whether Less than the 7th predetermined threshold value U7；If the voltage U of Traction networks is less than the 7th predetermined threshold value U7, control energy-accumulating power station is to Traction networks Discharged, meanwhile, control battery is discharged to Traction networks, wherein, the 7th predetermined threshold value U7 is less than the 6th predetermined threshold value U6. In the present embodiment, if the voltage U of Traction networks is too small, the battery of control energy-accumulating power station and train is discharged, so that The voltage of Traction networks is quickly improved.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage U whether More than the 8th predetermined threshold value U8；If the voltage U of Traction networks is more than the 8th predetermined threshold value U8, control energy-accumulating power station stops putting Electricity, wherein, the 8th predetermined threshold value U8 is more than the 6th predetermined threshold value U6.
According to one embodiment of present invention, the braking recovery method of train also includes：Judge Traction networks voltage whether More than the 4th predetermined threshold value；If the voltage of Traction networks is more than the 4th predetermined threshold value, control train carries out mechanical braking cooperation Implement electric braking to brake train, wherein, the 4th predetermined threshold value is more than the first predetermined threshold value.In embodiments of the invention In, if the train on Traction networks is less, or the train now braked is more, then absorb braking electricity in battery and energy-accumulating power station After energy, the voltage U of Traction networks may proceed to increase, and when the voltage of Traction networks is more than the 3rd predetermined threshold value U3, control train enters Row mechanical braking, auxiliary braking is carried out with 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 more than the 3rd predetermined threshold value U3, control train enters Row mechanical braking, so, auxiliary braking is carried out while electric braking is carried out to train by mechanical braking to train, to reduce The braking electric energy that train is produced, so as to the voltage U for avoiding Traction networks exceedes maximum rated voltage, and can realize precisely quick Parking.
According to one embodiment of present invention, the braking recovery method of train also includes：The electricity Q of battery is detected, and is sentenced Whether the electricity Q for powering off pond is more than the first power threshold Q1, such as 80%；If the electricity Q of battery is more than the first power threshold Q1, then control battery to stop absorbing braking electric energy.In an embodiment of the present invention, the charge power and discharge power of battery are subject to Limitation, battery electricity after braking electric energy is absorbed can increase, if the electricity of battery is excessive, can influence the service life of battery, When electricity Q is more than the first power threshold Q1, the first two-way DC/DC converters of control train are closed, to control battery to stop Absorb braking electric energy.
According to one embodiment of present invention, the braking recovery method of train also includes：The electricity Q ＇ of charging capacitor are detected, And judge the electricity Q ＇ of charging capacitor whether more than the second power threshold Q2；If the electricity Q ＇ of charging capacitor are more than the second electricity Threshold value Q2, then control charging capacitor to stop absorbing braking electric energy.
According to one embodiment of present invention, the braking recovery method of train also includes：Whether the contactor of detection train Disconnect；If detecting contactor disconnection, battery is controlled for train power supply, and control train to limit Power operation.
Specifically, when contactor disconnection is detected, illustrate that train is in abnormal electrical power supply state, judge that train enters and answer Anxious drive pattern, and emergent traction signal is sent, to control battery to be discharged, now, battery is train power supply.Meanwhile, control 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.
Thus, the emergency driving of train is realized by battery, it is to avoid the cast anchor on the way scheduling that causes of train is difficult 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) recovery of electric energy is braked
S101：Train is braked, and according to brake force generation braking electric energy, and braking electric energy is fed back into traction Net.
S102：The voltage U of real-time monitoring Traction networks.
S103：Judge the voltage U of Traction networks whether more than the first predetermined threshold value U1 such as 845V.
If it is, performing step S105；If it is not, then repeat step S103.
S104：Control battery absorbs braking electric energy.
S105：Judge the voltage U of Traction networks whether more than the 3rd predetermined threshold value U3.
If it is, performing step S106；If it is not, then repeat step S105.
S106：Control charging capacitor absorbs braking electric energy.
S107：Judge the voltage U of Traction networks whether more than the 5th predetermined threshold value U5.
If it is, performing step S108；If it is not, then repeat step S107.
S108：Control energy-accumulating power station absorbs braking electric energy.
Two) recycling of electric energy is braked
S201：Monitor the voltage U of Traction networks.
S202：Judge the voltage U of Traction networks whether less than the 6th predetermined threshold value U6 such as 810V.
If it is, performing step S203；If it is not, then repeat step S202.
S203：Control energy-accumulating power station is discharged.
S204：Judge the voltage U of Traction networks whether less than the 7th predetermined threshold value U7.
If it is, performing step S205；If it is not, then repeat step S204.
S205：Control energy-accumulating power station is discharged to Traction networks, meanwhile, control battery is discharged to Traction networks.
In addition, when Traction networks occur power supply trouble, battery can be controlled to enter discharge mode, to realize train Emergency driving.
So, the braking power consumption absorbed in battery and energy-accumulating power station can be fallen, in order to battery and energy-accumulating power station Proceed the recovery of braking energy, save operation cost.
To sum up, the braking recovery method of the train for proposing according to embodiments of the present invention, brakes to train first, and root According to brake force generation braking electric energy, and braking electric energy is fed back into Traction networks, then monitor the voltage of Traction networks, and according to traction The voltage control battery or rechargeable battery of net absorb to the braking electric energy of train, if the voltage of Traction networks continues to raise, Energy-accumulating power station is then recycled to be absorbed.Further, it is also possible to the voltage control energy-accumulating power station according to Traction networks is carried out to Traction networks Electric discharge, so as to avoid the brownout of Traction networks, maintains the normal work of Traction networks.In embodiments of the present invention, train is entered Braking electric energy is first fed back into Traction networks after row braking, if the train now on Traction networks is relatively more, the system that will can be fed back Electrokinetic energy uniformly arrives other trains, therefore the voltage of Traction networks will not rise much higher.If instead the now train on Traction networks It is less, or the train now braked is more, then the voltage of Traction networks will be raised, and in embodiments of the present invention, preferentially be used On-vehicle battery and charging capacitor are absorbed, if the voltage of Traction networks continues to rise after on-vehicle battery and charging capacitor absorb Height, then reuse energy-accumulating power station and absorbed.Because on-vehicle battery is just arranged on train, therefore preferential use battery is carried out Absorb, it is to avoid braking electric energy occur excessive, it is impossible to be rapidly absorbed or consume, so as to asking that the electrical equipment for causing Traction networks is burned out Topic.The embodiment of the present invention is absorbed by the battery on train, charging capacitor and energy-accumulating power station to braking electric energy, so as 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 security of system can be improve with the voltage of effective monitoring Traction networks, the parts of protection system.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements The connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the art For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (32)

1. the braking recovery system of a kind of train, it is characterised in that including：
Traction networks；
Train, the train includes：
Electric brake；
Battery；
Charging capacitor；
Distributor, the distributor is connected with the electric brake, has node between the distributor and the electric brake；
First two-way DC/DC converters, one end of the first two-way DC/DC converters is connected with the battery, and described first The other end of two-way DC/DC converters is connected with the node；
Second two-way DC/DC converters, one end of the second two-way DC/DC converters is connected with the charging capacitor, described The other end of the second two-way DC/DC converters is connected with the node；
First controller, first controller and the distributor, first two-way DC/DC converters and described second pair To DC/DC converters be connected, first controller be used for controlled in the train braking distributor, described first pair Electric energy feedback will be braked to the Traction networks to DC/DC converters and the second two-way DC/DC converters, and according to described Voltage the control first two-way DC/DC converters and the second two-way DC/DC converters of Traction networks, to select the electricity Pond or the charging capacitor absorb to the braking electric energy of the train；
Energy-accumulating power station, the energy-accumulating power station is connected with the Traction networks, and the energy-accumulating power station includes second controller, described second Controller is used to carry out charge or discharge according to the voltage of the Traction networks control energy-accumulating power station.
2. the braking recovery system of train as claimed in claim 1, it is characterised in that
First controller is used for when the voltage of the Traction networks is more than the first predetermined threshold value, and control described first is two-way DC/DC converters think that the battery charges by braking electric energy described in the battery receptacle.
3. the braking recovery system of train as claimed in claim 2, it is characterised in that
First controller is used for when the voltage of the Traction networks is less than the second predetermined threshold value, and control described first is two-way DC/DC converters are closed so that the battery stops absorbing the braking electric energy, wherein, second predetermined threshold value is less than described First predetermined threshold value.
4. the braking recovery system of train as claimed in claim 2, it is characterised in that
First controller is used for when the voltage of the Traction networks is more than three predetermined threshold values, and control described second is two-way DC/DC converters receive the braking electric energy and think that the charging capacitor charges by the charging capacitor, wherein, the described 3rd Predetermined threshold value is more than first predetermined threshold value.
5. the braking recovery system of train as claimed in claim 4, it is characterised in that the train also includes：
Mechanical brake, for carrying out mechanical braking to train.
6. the braking recovery system of train as claimed in claim 5, it is characterised in that
First controller is used to, when the voltage of the Traction networks is more than four predetermined threshold values, control the mechanical brake Start and coordinate implementation electric brake to brake the train, wherein, the 4th predetermined threshold value is preset more than described first Threshold value.
7. the braking recovery system of train as claimed in claim 1, it is characterised in that
The second controller is used to, when the voltage of the Traction networks is more than five predetermined threshold values, control the energy-accumulating power station to enter Row charges.
8. the braking recovery system of train as claimed in claim 7, it is characterised in that
The second controller is used to, when the voltage of the Traction networks is less than six predetermined threshold values, control the energy-accumulating power station to enter Row electric discharge, wherein, the 6th predetermined threshold value is less than the 5th predetermined threshold value.
9. the braking recovery system of train as claimed in claim 8, it is characterised in that
When the voltage of the Traction networks is less than seven predetermined threshold values, the second controller controls the energy-accumulating power station to described Traction networks are discharged, meanwhile, first controller controls the two-way DC/DC converters to enter discharge mode so that described The battery of train is discharged to the Traction networks, wherein, the 7th predetermined threshold value is less than the 6th predetermined threshold value.
10. the braking recovery system of train as claimed in claim 1, it is characterised in that the train also includes：
Contactor detector, the contactor detector is connected with first controller, and the contactor detector is used to examine Whether the contactor for surveying the train disconnects, wherein, first controller is additionally operable to after the contactor disconnects, control The distributor is closed, and controls the described first two-way DC/DC converters to enter discharge mode so that the battery is the row Car is powered, and controls the train limit Power operation.
The braking recovery system of 11. trains as claimed in claim 1, it is characterised in that the energy-accumulating power station is multiple, described Multiple energy-accumulating power stations are according to predeterminable range interval setting.
The braking recovery system of 12. trains as claimed in claim 1, it is characterised in that set described in two in per 3-6 kilometers Energy-accumulating power station, the power of the energy-accumulating power station is 0.5-2MW.
A kind of 13. trains, it is characterised in that including：
Electric brake；
Battery；
Charging capacitor；
Distributor, the distributor is connected with the electric brake, has node between the distributor and the electric brake；
First two-way DC/DC converters, one end of the first two-way DC/DC converters is connected with the battery, and described first The other end of two-way DC/DC converters is connected with the node；
Second two-way DC/DC converters, one end of the second two-way DC/DC converters is connected with the charging capacitor, described The other end of the second two-way DC/DC converters is connected with the node；
First controller, first controller and the distributor, first two-way DC/DC converters and described second pair To DC/DC converters be connected, first controller be used for controlled in the train braking distributor, described first pair Electric energy feedback will be braked to the Traction networks to DC/DC converters and the second two-way DC/DC converters, and according to described Voltage the control first two-way DC/DC converters and the second two-way DC/DC converters of Traction networks, to select the electricity Pond or the charging capacitor absorb to the braking electric energy of the train.
The braking recovery system of 14. trains as claimed in claim 13, it is characterised in that
First controller is used for when the voltage of the Traction networks is more than the first predetermined threshold value, and control described first is two-way DC/DC converters are into charge mode so that electric energy is braked described in the battery receptacle thinks that the battery charges.
The braking recovery system of 15. trains as claimed in claim 14, it is characterised in that
First controller is used for when the voltage of the Traction networks is less than the second predetermined threshold value, and control described first is two-way DC/DC converters are closed so that the battery stops absorbing the braking electric energy, wherein, second predetermined threshold value is less than described First predetermined threshold value.
The braking recovery system of 16. trains as claimed in claim 14, it is characterised in that
First controller is used for when the voltage of the Traction networks is more than three predetermined threshold values, and control described second is two-way DC/DC converters into charge mode so that the charging capacitor receives the braking electric energy and thinks that the charging capacitor charges, Wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
17. trains as claimed in claim 16, it is characterised in that also include：
Mechanical brake, for carrying out mechanical braking to train.
The braking recovery system of 18. trains as claimed in claim 17, it is characterised in that
First controller is used to, when the voltage of the Traction networks is more than four predetermined threshold values, control the mechanical brake Start and coordinate implementation electric brake to brake the train, wherein, the 4th predetermined threshold value is preset more than described first Threshold value.
19. trains as claimed in claim 13, it is characterised in that also include：
Contactor detector, the contactor detector is connected with first controller, and the contactor detector is used to examine Whether the contactor for surveying the train disconnects, wherein, first controller is additionally operable to after the contactor disconnects, control The distributor is closed, and controls the described first two-way DC/DC converters to enter discharge mode so that the battery is the row Car is powered, and controls the train limit Power operation.
20. trains as claimed in claim 13, it is characterised in that the train is straddle-type monorail train.
21. trains as claimed in claim 20, it is characterised in that the train includes：
Bogie, the bogie is suitable to straddle seat on track girder；
Car body, the car body is connected with the bogie and is travelled along the track girder by bogie traction.
22. trains as claimed in claim 21, it is characterised in that the bogie includes；
Bogie frame, the bogie frame is suitable to straddle seat on the track girder and is connected with the car body；
Travelling wheel, the travelling wheel is pivotably mounted on the bogie frame and coordinates in the upper surface of the track girder On；
Power set, the power set are arranged on the bogie frame and are connected with the travelling wheel；
Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and coordinate the side surface in the track girder On.
23. trains as claimed in claim 22, it is characterised in that the bogie also includes:
Draw-gear, the draw-gear is arranged on the bogie frame and is connected with the car body；
Supported and suspended device, the supported and suspended device is arranged on the bogie frame and is connected with the car body.
A kind of braking recovery method of 24. trains, it is characterised in that, comprise the following steps：
The train is braked, and according to brake force generation braking electric energy, and the braking electric energy is fed back into Traction networks；
Monitor the voltage of the Traction networks；
Voltage selection battery or charging capacitor according to the Traction networks absorb to the braking electric energy；
Voltage control energy-accumulating power station according to the Traction networks carries out charge or discharge.
The braking recovery method of 25. trains as claimed in claim 24, it is characterised in that the electricity according to the Traction networks Pressure selection battery or charging capacitor carry out absorption and specifically include to the braking electric energy：
Judge the voltage of the Traction networks whether more than the first predetermined threshold value；
If the voltage of the Traction networks be more than first predetermined threshold value, control described in the battery receptacle brake electric energy with For the battery charges.
The braking recovery method of 26. trains as claimed in claim 25, it is characterised in that also include：
Judge that the voltage of the Traction networks is less than the second predetermined threshold value；
If the voltage of the Traction networks is less than second predetermined threshold value, the battery is controlled to stop absorbing the braking electricity Can, wherein, second predetermined threshold value is less than first predetermined threshold value.
The braking recovery method of 27. trains as claimed in claim 25, it is characterised in that also include：
Judge the voltage of the Traction networks whether more than the 3rd predetermined threshold value；
If the voltage of the Traction networks is more than the 3rd predetermined threshold value, control the charging capacitor receive the braking electric energy with For the charging capacitor charges, wherein, the 3rd predetermined threshold value is more than first predetermined threshold value.
The braking recovery method of 28. trains as claimed in claim 27, it is characterised in that also include：
Judge the voltage of the Traction networks whether more than the 4th predetermined threshold value；
If the voltage of the Traction networks is more than the 4th predetermined threshold value, control train carries out mechanical braking and coordinates implementation electric braking The train is braked, wherein, the 4th predetermined threshold value is more than first predetermined threshold value.
The braking recovery method of 29. trains as claimed in claim 24, it is characterised in that also include：
Judge the voltage of the Traction networks whether more than the 5th predetermined threshold value；
If the voltage of the Traction networks is more than the 5th predetermined threshold value, the energy-accumulating power station is controlled to be charged.
The braking recovery method of 30. trains as claimed in claim 29, it is characterised in that also include：
Judge the voltage of the Traction networks whether less than the 6th predetermined threshold value；
If the voltage of the Traction networks is less than the 6th predetermined threshold value, the energy-accumulating power station is controlled to be discharged, wherein, 6th predetermined threshold value is less than the 5th predetermined threshold value.
The braking recovery method of 31. trains as claimed in claim 30, it is characterised in that also include：
Judge the voltage of the Traction networks whether less than the 7th predetermined threshold value；
If the voltage of the Traction networks is less than the 7th predetermined threshold value, the energy-accumulating power station is controlled to be put to the Traction networks Electricity, meanwhile, control the battery to be discharged to the Traction networks, wherein, the 7th predetermined threshold value is pre- less than the described 6th If threshold value.
The braking recovery method of 32. trains as claimed in claim 24, it is characterised in that also include：
Detect whether the contactor of train disconnects；
If detecting the contactor to disconnect, the battery is controlled for the train power supply, and control the train limit work( Rate is run.
CN201610839994.5A 2016-09-21 2016-09-21 The braking recovery system and method and train of train Active CN106809024B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610839994.5A CN106809024B (en) 2016-09-21 2016-09-21 The braking recovery system and method and train of train

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610839994.5A CN106809024B (en) 2016-09-21 2016-09-21 The braking recovery system and method and train of train

Publications (2)

Publication Number Publication Date
CN106809024A true CN106809024A (en) 2017-06-09
CN106809024B CN106809024B (en) 2019-04-19

Family

ID=59106659

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610839994.5A Active CN106809024B (en) 2016-09-21 2016-09-21 The braking recovery system and method and train of train

Country Status (1)

Country Link
CN (1) CN106809024B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108859821A (en) * 2018-06-19 2018-11-23 浙江吉利控股集团有限公司 Energy regenerating packet, system and method

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108859821A (en) * 2018-06-19 2018-11-23 浙江吉利控股集团有限公司 Energy regenerating packet, system and method

Also Published As

Publication number Publication date
CN106809024B (en) 2019-04-19

Similar Documents

Publication Publication Date Title
CN106809023B (en) The braking recovery system and method and train of train
CN106809021B (en) Braking recovery system, the control centre for train scheduling and the method for train
CN206202001U (en) The braking recovery system of energy-accumulating power station, train and train
CN106809029B (en) Braking recovery system, the control centre for train scheduling and the method for train
CN106809030B (en) Braking recovery system, the control centre for train scheduling and the method for train
CN110014864A (en) A kind of train traction rescue mode and system
CN106809031B (en) Braking recovery system, the control centre for train scheduling and the method for train
CN106809028B (en) The braking recovery device and method and train of train
JP6055258B2 (en) Railway vehicle
CN102774385A (en) Electric locomotive and power supply system and power supply method thereof
CN106809025B (en) Braking recovery system, the control centre for train scheduling and the method for train
CN110504721A (en) Moving charging power station
Suzuki et al. Application examples of energy saving measures in Japanese DC feeding system
CN108146296A (en) A kind of double electric stringing vehicle Stady On The Auxiliary Transportation Systems of mine
CN106809032B (en) The braking recovery system and method for train
CN106809024B (en) The braking recovery system and method and train of train
CN106809026B (en) The braking recovery system and method for train, energy-accumulating power station and control centre
CN106809022A (en) The braking recovery system and method for train and the control centre of control train operation
CN106809034B (en) The braking recovery system and method for train
CN207859965U (en) The dynamical system of off-highway electric power wheel self-discharging vehicle
CN202764966U (en) Electric locomotive and power supply system thereof
CN206141340U (en) Braking recovery unit and train of train
CN106809035B (en) The braking recovery system and method and train of train
CN106809033B (en) The braking recovery system and method and train of train
CN206202002U (en) The braking recovery device and train of train

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant