CN106809025B - Braking recovery system, the control centre for train scheduling and the method for train - Google Patents

Braking recovery system, the control centre for train scheduling and the method for train Download PDF

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Publication number
CN106809025B
CN106809025B CN201610840629.6A CN201610840629A CN106809025B CN 106809025 B CN106809025 B CN 106809025B CN 201610840629 A CN201610840629 A CN 201610840629A CN 106809025 B CN106809025 B CN 106809025B
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train
energy
traction networks
braking
battery
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CN106809025A (en
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李道林
罗文刚
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BYD Co Ltd
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BYD Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L9/00—Electric propulsion with power supply external to the vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a kind of braking recovery system of train, the control centre for train scheduling and method, system includes: Traction networks；Train comprising electric brake；Battery；Distributor, distributor are connected with electric brake；Two-way DC/DC converter；First controller, wherein the first controller, which is used to prepare electric appliance and two-way DC/DC converter in train braking time control, will brake electric energy feedback to Traction networks；The multiple energy-accumulating power stations being connected with Traction networks, energy-accumulating power station include second controller, and second controller is used to control energy-accumulating power station when the voltage of Traction networks is less than the first preset threshold to discharge to Traction networks；Control centre carries out discharge power distribution for obtaining the electricity of multiple energy-accumulating power stations, and according to the electricity of multiple energy-accumulating power stations.It can control multiple energy-accumulating power stations equilibriums, co-ordination as a result, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent energy-accumulating power station over-discharge, it is ensured that the service life of energy-storage battery.

Description

Braking recovery system, the control centre for train scheduling and the method for train
Technical field
The present invention relates to technical field of vehicle, in particular to braking recovery system, one kind of a kind of train are used for train tune The control centre of degree, a kind of braking recovery method of train and a kind of control method for train scheduling.
Background technique
With the continuous expansion of city size, traffic increasingly congestion, track train, such as light rail, subway etc. have become mesh The main traffic mode in preceding many cities.Train can generate a large amount of braking electric energy during braking, with environmentally protective Theory the problem of constantly deepening, train braking electric energy is recycled and recycled it is very urgent.Related skill existing at present Art discloses, and battery is arranged among train and recycles to braking electric energy, and is train power supply.However generated when train braking It is very big to brake electric energy, if to be absorbed by on-vehicle battery, needs that a large amount of battery is installed ON TRAINS, not only sternly The weight for increasing train again, influences the energy consumption of train operation, and also will increase unnecessary cost.
Therefore, the relevant technologies needs improve.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention One purpose is to propose that the recycling and reuse of braking electric energy may be implemented in a kind of braking recovery system of train, the system.
It is another object of the present invention to propose a kind of control centre for train scheduling.Another mesh of the invention Be propose a kind of braking recovery method of train.Another object of the present invention is to propose a kind of for train scheduling Control method.
In order to achieve the above objectives, the braking recovery system for a kind of train that one aspect of the present invention embodiment proposes, comprising: lead Draw net；Train, the train include: electric brake；Battery；Distributor, the distributor is connected with the electric brake, described There is node between distributor and the electric brake；Two-way DC/DC converter, one end of the two-way DC/DC converter with The battery is connected, and the other end of the two-way DC/DC converter is connected with the node；First controller, wherein described One controller will brake electric energy feedback for controlling the distributor and the two-way DC/DC converter in the train braking To the Traction networks；Multiple energy-accumulating power stations, the multiple energy-accumulating power station are connected with the Traction networks, and the energy-accumulating power station includes the Two controllers, the second controller is for controlling the energy storage electricity when the voltage of the Traction networks is less than the first preset threshold It stands and discharges to the Traction networks；Control centre, for obtaining the electricity of the multiple energy-accumulating power station, and according to the multiple The electricity of energy-accumulating power station carries out discharge power distribution.
The braking recovery system of the train proposed according to embodiments of the present invention, control centre obtain the electricity of multiple energy-accumulating power stations Amount, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.The embodiment of the present invention can control multiple energy storage electricity as a result, Balanced, co-ordination of standing effectively prevent energy-accumulating power station over-discharge, it is ensured that storage while the multiple energy-accumulating power stations of control are substantially discharged The service life of energy battery.Moreover, energy-accumulating power station discharges when the voltage of Traction networks is less than the first preset threshold to Traction networks, from And the brownout of Traction networks is avoided, maintain the normal work of Traction networks.Also, the embodiment of the present invention can be led with effective monitoring Draw the voltage of net, protect system parts, improves security of system.
In order to achieve the above objectives, a kind of control centre for train scheduling that another aspect of the present invention embodiment proposes, It include: acquisition device, for obtaining the electricity for the multiple energy-accumulating power stations being connected on Traction networks；Control device, for according to institute The electricity for stating multiple energy-accumulating power stations carries out discharge power distribution.
The control centre for train scheduling proposed according to embodiments of the present invention obtains multiple energy storage by acquisition device The electricity in power station, and then control device carries out discharge power distribution according to the electricity of multiple energy-accumulating power stations.The present invention is implemented as a result, Example can control multiple energy-accumulating power stations equilibriums, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively prevent storing up Energy power station over-discharge, it is ensured that the service life of energy-storage battery.
In order to achieve the above objectives, a kind of braking recovery method for train that another aspect of the invention embodiment proposes, train Braking recovery system include Traction networks, train, multiple energy-accumulating power stations and control centre, the train will braking electricity in braking The Traction networks can be fed back to, the described method comprises the following steps: the energy-accumulating power station obtains the voltage of the Traction networks；It is described Energy-accumulating power station discharges when the voltage of the Traction networks is less than the first preset threshold to the Traction networks；The control centre Obtain the electricity of the multiple energy-accumulating power station；The control centre carries out discharge power according to the electricity of the multiple energy-accumulating power station Distribution.
The braking recovery method of the train proposed according to embodiments of the present invention, control centre obtain the electricity of multiple energy-accumulating power stations Amount, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.The embodiment of the present invention can control multiple energy storage electricity as a result, Balanced, co-ordination of standing effectively prevent energy-accumulating power station over-discharge, it is ensured that storage while the multiple energy-accumulating power stations of control are substantially discharged The service life of energy battery.Moreover, energy-accumulating power station discharges when the voltage of Traction networks is less than the first preset threshold to Traction networks, from And the brownout of Traction networks is avoided, maintain the normal work of Traction networks.Also, the embodiment of the present invention can be led with effective monitoring Draw the voltage of net, protect system parts, improves security of system.
In order to achieve the above objectives, a kind of control method for train scheduling that further aspect of the present invention embodiment proposes, The following steps are included: obtaining the electricity for the multiple energy-accumulating power stations being connected on Traction networks；According to the electricity of the multiple energy-accumulating power station Amount carries out discharge power distribution.
The control method for train scheduling proposed according to embodiments of the present invention, obtains the electricity of multiple energy-accumulating power stations, And discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.The embodiment of the present invention can control multiple energy-accumulating power stations as a result, Balanced, co-ordination effectively prevent energy-accumulating power station over-discharge, it is ensured that energy storage while the multiple energy-accumulating power stations of control are substantially discharged The service life of battery.
Detailed description of the invention
Fig. 1 is the block diagram according to the braking recovery system of the train of the embodiment of the present invention；
Fig. 2 is the block diagram according to the braking recovery system of the train of one embodiment of the invention；
Fig. 3 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U be greater than the second preset threshold U2；
Fig. 4 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U be less than third predetermined threshold value U3；
Fig. 5 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U be greater than the 5th preset threshold U5；
Fig. 6 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U less than the first preset threshold U1；
Fig. 7 is the circuit diagram according to the braking recovery system of the train of one embodiment of the invention, wherein Traction networks Voltage U less than the 7th preset threshold U7；
Fig. 8 is the block diagram according to the braking recovery system of the train of a specific embodiment of the invention；
Fig. 9 is the block diagram according to the braking recovery system of the train of another specific embodiment of the invention；
Figure 10 is the block diagram according to the braking recovery system of the train of another specific embodiment of the invention；
Figure 11 is the operation principle schematic diagram according to the braking recovery system of the train of a specific embodiment of the invention；
Figure 12 is the structural schematic diagram of train in the braking recovery system according to the train of a specific embodiment of the invention；
Figure 13 is the block diagram according to the control centre for train scheduling of the embodiment of the present invention；
Figure 14 is the flow chart according to the braking recovery method of the train of the embodiment of the present invention；
Figure 15 is the flow chart according to the braking recovery method of the train of one embodiment of the invention；
Figure 16 is the flow chart according to the braking recovery method of the train of another embodiment of the present invention；
Figure 17 is the flow chart according to the braking recovery method of the train of another embodiment of the invention；
Figure 18 is the flow chart according to the charge-discharge electric power method for limiting of the battery of the train of one embodiment of the invention；
Figure 19 is the flow chart according to the braking recovery method of the train of a specific embodiment of the invention；
Figure 20 is the flow chart according to the braking recovery method of the train of another specific embodiment of the invention；And
Figure 21 is the flow chart according to the control method for train scheduling of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings come describe proposition of the embodiment of the present invention train braking recovery system and method and be used for The control centre of train scheduling and method.
Fig. 1 is the block diagram according to the braking recovery system of the train of the embodiment of the present invention.As shown in Figure 1, the column The braking recovery system of vehicle include: Traction networks 1, the multiple trains 2 being connected on Traction networks 1, be arranged in it is multiple on Traction networks 1 Energy-accumulating power station 3 and the control centre 4 communicated respectively with each train 2 and each energy-accumulating power station 3.Wherein, Traction networks 1 to Multiple trains 2 provide direct current, and train 2 takes electricity by electricity getting device among Traction networks.In one embodiment of the invention, Train 2 is straddle-type monorail train.It can be arranged in an embodiment of the present invention by the battery of train 2 or 3 pairs of energy-accumulating power station The braking electric energy that vehicle 2 generates is recycled.For train 2, the braking electric energy of itself generation not only can be absorbed, it can also be with Absorb the braking electric energy of other trains 2 generation.Since train 2 is when to 1 regenerative braking electric energy of Traction networks, the voltage of Traction networks 1 It can increase, therefore train 2 and energy-accumulating power station 3 can be monitored the voltage of Traction networks 1.When the voltage of Traction networks 1 increases, It can be absorbed by the battery or energy-accumulating power station 3 of train 2, to prevent the voltage of Traction networks 1 from reaching voltage rating, and be gone out Existing failure.Specific absorption process will describe in detail below in an example.In an embodiment of the present invention, train 2 The braking electric energy that absorbs of battery can be used for illumination, air-conditioning, the multimedia electricity consumption of train 2.In other implementations of the invention In example, the braking electric energy that the battery of train 2 absorbs can be also used for the emergency driving of train 2, such as when train 2 can not be from traction Net 1 obtains electric energy, if Traction networks 1 break down, alternatively, train 2 can be switched to battery driving when without Traction networks 1.At this In the embodiment of invention, energy-accumulating power station 3 be can be set among AT STATION, the braking electric energy of absorption is powered for station, example 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 pre-determined distance Interval setting, such as two energy-accumulating power stations 3 are set in every 3-6 kilometers, the power of each energy-accumulating power station 3 is 0.5-2MW.Certainly originally Field technical staff can select the quantity and power of suitable energy-accumulating power station 3 according to the specific operating environment of train 2.In this hair In bright embodiment, it is that train 2 is answered that control centre 4 can also dispatch energy-accumulating power station 3 when line fault occur in Traction networks 1 Anxious power supply.
As shown in Figs. 1-2, the braking recovery system of the train of the embodiment of the present invention includes: Traction networks 1, train 2, energy storage electricity It stands 3 and control centre 4.
Wherein, Traction networks 1 include multiple sections；Train 2 is connected on Traction networks 1, and train 2 includes electric brake 201, electricity Pond 202, distributor 203, two-way DC/DC converter 204 and the first controller 205；Multiple energy-accumulating power stations 3 are connected with Traction networks 1, Energy-accumulating power station 3 includes second controller 301, and second controller 301 is used for when the voltage of Traction networks 1 is less than the first preset threshold Control energy-accumulating power station 3 discharges to Traction networks 1；Control centre 4 is used to obtain the electricity of multiple energy-accumulating power stations 3, and according to more The electricity of a energy-accumulating power station 3 carries out discharge power distribution.
That is, control centre 4 can be communicated with multiple energy-accumulating power stations 3 to obtain the work of multiple energy-accumulating power stations 3 State, such as remaining capacity, charging and discharging state etc., and control centre 4 can also be communicated with multiple energy-accumulating power stations 3 to more A energy-accumulating power station 3 is controlled.
Specifically, when the voltage U of Traction networks is less than the first preset threshold U1, such as when 810V, second controller 301 is controlled Energy-accumulating power station 3 processed discharges, at this point, the electric energy in circuit is flowed according to the direction that arrow shown in Fig. 6 indicates, train 2 is generated Braking electric energy feed back to Traction networks 1, and energy-accumulating power station 3 discharges to Traction networks 1.In an embodiment of the present invention, if The more voltage decline that will lead to Traction networks of train on Traction networks 1, at this time in order to avoid the voltage of Traction networks 1 reaches minimum Voltage rating needs to control energy-accumulating power station 3 and discharges to Traction networks 1.In one particular embodiment of the present invention, Traction networks There are multiple energy-accumulating power stations 3 on 1, the preferential energy-accumulating power station 3 for selecting electricity high discharges to Traction networks, such as the energy storage electricity that electricity is high The power that 3 discharge of standing is big, and the power that the low energy-accumulating power station 3 of electricity discharges is smaller, so that the electricity reached between energy-accumulating power station 3 is flat Weighing apparatus.
A specific embodiment according to the present invention, when the electricity of energy-accumulating power station 3 is greater than third power threshold, in control The heart 4 controls energy-accumulating power station 3 with the first power discharge；When the electricity of energy-accumulating power station 3 is less than third power threshold, control centre 4 Energy-accumulating power station 3 is controlled with the second power discharge, wherein the second power is less than the first power.
That is, control centre 4 is by being communicated with multiple energy-accumulating power stations 3 on Traction networks 1 to obtain each storage Electricity, that is, the SOC (State of Charge, state-of-charge) in energy power station 3, and then discharge in energy-accumulating power station 3 to Traction networks 1 When, control centre 4 judges the electricity of each energy-accumulating power station 3, and control electricity is greater than the energy-accumulating power station 3 of third power threshold With biggish first power discharge, and controls electricity and put less than the energy-accumulating power station 3 of third power threshold with lesser second power Electricity, to reach the electric quantity balancing between energy-accumulating power station 3.
As an example it is assumed that there is A energy-accumulating power station 3, and the 1st energy-accumulating power station 3 to i-th energy storage electricity on Traction networks 1 3 electricity of standing is respectively less than third power threshold, and the electricity of i+1 energy-accumulating power station 3 to the A energy-accumulating power station 3 is all larger than third Power threshold, then, control centre 4 is controlled the 1st 3 to i-th energy-accumulating power station 3 of energy-accumulating power station and is put with lesser second power Electricity, and i+1 energy-accumulating power station 3 is controlled to the A energy-accumulating power station 3 with biggish first power discharge.
The braking recovery system for the train that the embodiment of the present invention proposes as a result, control centre obtain multiple energy-accumulating power stations Electricity, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.To which the embodiment of the present invention can control multiple energy storage Power station is balanced, co-ordination effectively prevent energy-accumulating power station over-discharge while the multiple energy-accumulating power stations of control are substantially discharged, it is ensured that The service life of energy-storage battery.Moreover, energy-accumulating power station discharges when the voltage of Traction networks is less than the first preset threshold to Traction networks, To avoid the brownout of Traction networks, the normal work of Traction networks is maintained.Also, the embodiment of the present invention can be with effective monitoring The voltage of Traction networks protects system parts, improves security of system.
As shown in Fig. 2, for according to the block diagram of the braking recovery system of the train of one embodiment of the invention.In order to Convenient for description, an energy-accumulating power station is illustrated only in this embodiment.Wherein, as shown in Fig. 2, distributor 203 and drawing electric network 1 It is connected with electric brake 201, there is node between distributor 203 and electric brake 201；One end of two-way DC/DC converter 204 It is connected with battery 202, the other end of two-way DC/DC converter 204 and the node phase between distributor 203 and electric brake 201 Even.
First controller 205 is used to prepare electric appliance 203 and two-way DC/DC converter 204 in train braking time control and will brake Electric energy feedback is opened to Traction networks 1, such as by distributor 203, and two-way DC/DC converter 204 is closed, thus will braking electricity Traction networks 1 can be directly fed back to.And first controller 205 two-way DC/DC converter 204 controlled according to the voltage U of Traction networks It is absorbed by braking electric energy of the battery 202 to train 2.Also, in one embodiment of the invention, second controller The 301 instruction control energy-accumulating power station 3 for being issued according to the voltage U or control centre 4 of Traction networks carries out charge or discharge.Its In, energy-accumulating power station 3 may include at least one energy-storage battery and corresponding two-way DC/DC converter.In an embodiment of the present invention, As shown in Fig. 2, energy-accumulating power station 3 may include multiple 160KW-80KWh modules, the anode of multiple 160KW-80KWh modules is connected, and It is connected by positive cabinet with the anode of Traction networks 1, the cathode of multiple 160KW-80KWh modules is connected, and passes through cathode cabinet and lead The cathode for drawing net 1 is connected.
Specifically, when train 2 is braked, traction electric machine is changed into generator operating condition, electricity system from motor working condition Dynamic device 201 generates braking electric energy and braking electric energy is fed back to Traction networks 1.When the train negligible amounts on Traction networks 1 are drawn Load on net 1 is smaller or Traction networks 1 on the train braked it is more when, feedback can be more than to the braking electric energy on Traction networks 1 Electric energy needed for train operation on Traction networks 1, so as to cause the raising of the voltage U of Traction networks.At this point, the first controller 205 The voltage U of real-time monitoring Traction networks 1 preferentially controls train 2 by the first controller 205 when the voltage U of Traction networks 1 is increased Battery 202 absorb braking electric energy.Meanwhile the second controller 301 of energy-accumulating power station 3 monitors the voltage U of Traction networks, if arranging The voltage U of Traction networks 1 continues to increase after the battery of vehicle 2 is absorbed, then second controller 301 controls energy-accumulating power station 3 from leading Draw the absorption electric energy of net 1 to charge.Similarly, when the train quantity on Traction networks 1 is more, i.e., the load on Traction networks 1 is larger When, the voltage U of Traction networks 1 can be reduced, at this time the voltage U of the 301 real-time monitoring Traction networks 1 of second controller of energy-accumulating power station 3, when When the voltage U of Traction networks 1 is reduced, energy-accumulating power station 3 is preferentially controlled by second controller 301 and is discharged to improve Traction networks 1 Voltage.If the voltage U of Traction networks 1 continues to reduce, the first controller 205 also can control battery 202 to discharge to mention The voltage of high Traction networks 1.
It should be noted that the battery 202 of train 2 can be powered for the illumination of train, air-conditioning, multimedia.Energy storage Power station 3 may be provided among station, and the braking electric energy of recycling is used for the illumination for station, air-conditioning, multimedia etc. and is supplied Electricity.In this way, braking electric energy can be for recycling and reuse by battery 202 and energy-accumulating power station 3, while power transformation can be reduced The load stood, has saved the energy.
It should also be noted that, battery 202 is arranged on train 2, the braking electric energy of train generation can be quickly absorbed, by Farther out in the distance between energy-accumulating power station 3 and train 2, energy-accumulating power station 3 is caused to absorb braking electric energy lag.Therefore, in the present invention Embodiment in preferentially select battery 202 absorb braking electric energy, with realize braking electric energy quick absorption, to prevent from not inhaled It receives or the braking electric energy of consumption causes the voltage U of Traction networks to increase, protect the components of system, avoid on Traction networks 1 Electric appliance damage, improves the safety of system.
Another specific embodiment according to the present invention, if there was only rows of operations of vehicle 2 on Traction networks 1 is Traction networks 1 It is upper to absorb braking electric energy without other trains, and the braking electric energy that the braking of train 2 generates is larger, then brakes electric energy mainly by energy storage Power station 3 absorbs, such as the control battery 202 of the first controller 205 first absorbs the 30% of braking electric energy, then second controller 301 control energy-accumulating power stations 3 absorb the 70% of braking electric energy, to complete the recycling of braking electric energy.
Another specific embodiment according to the present invention, if having the operation of multiple row train 2 on Traction networks 1, and in energy storage electricity It stands after 3 absorption braking electric energy, the voltage U of Traction networks 1 continues to increase, then can pass through the non-brake train on Traction networks 1 It charges to the battery 202 of non-brake train.Assuming that the braking electric energy for not being absorbed or consuming on Traction networks 1 is Q ', traction There is N column train on net 1, then the average value for the braking electric energy that the battery 202 of each train absorbs on Traction networks 1 is Q '/N.At this In the embodiment of invention, since the braking electric energy that train braking generates is very big, such as shown in table 1, it can be seen that in AW2 and The braking electric energy greater than 220KW can be generated under the operating condition of AW3.At this time if these braking electric energy trains for instantaneously generating On-vehicle battery is absorbed, then the on-vehicle battery that will lead to train is very big.Therefore in an embodiment of the present invention, for such Situation is combined using battery and energy-accumulating power station to be absorbed, to avoid that a large amount of battery is arranged on train.
Table 1
The embodiment of the present invention realizes system by battery and energy-accumulating power station absorption braking electric energy on control train as a result, The recycling and reuse of electrokinetic energy, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can be with The voltage of effective monitoring Traction networks protects system parts, improves security of system.
The concrete operating principle of the braking recovery system of the train of the embodiment of the present invention is analyzed below with reference to Fig. 3-7.
According to one embodiment of present invention, as shown in figure 3, the voltage U when Traction networks is greater than the second preset threshold U2, example When such as 845V, the first controller 205 controls two-way DC/DC converter 204 and enters charge mode so that battery 202 absorbs braking electricity Energy.At this point, the electric energy in circuit is flowed according to the direction that arrow shown in Fig. 3 indicates, wherein the braking electric energy that train 2 generates is anti- Traction networks 1 are fed to, and the battery 202 of train 2 absorbs braking electric energy.In an embodiment of the present invention, when the first controller 205 When controlling the two-way entrance of DC/DC converter 204 charge mode, on high-tension side DC power conversion is by two-way DC/DC converter 204 With the direct current of the voltage matches of battery 202, the absorption braking electric energy of battery 202 is controlled to be charged to battery 202；When When one controller 205 controls two-way DC/DC and enters discharge mode, what two-way DC/DC converter 204 was used to provide on battery 202 Direct current is changed into the direct current with the voltage matches of Traction networks 1, and being discharged with to control battery 202 will store up in battery 202 The braking electric energy deposited feeds back to Traction networks 1.
According to one embodiment of present invention, as shown in figure 4, after battery 202 starts to absorb braking electric energy, Traction networks 1 voltage can decline, and when the voltage U of Traction networks 1 is less than third predetermined threshold value U3, such as when 830V, the first controller 205 is controlled Two-way DC/DC converter 204 is closed so that battery 202 stops absorbing braking electric energy, wherein third predetermined threshold value U3 is less than second Preset threshold U2.At this point, the electric energy in circuit is flowed according to the direction that arrow shown in Fig. 4 indicates, the braking electric energy that train 2 generates Traction networks 1 are fed back to, and the battery 202 of train 2 and energy-accumulating power station 3 do not absorb braking electric energy.
Specifically, as shown in Figures 3 and 4, when train 2 is braked, braking electric energy feeds back to Traction networks 1, the first control The voltage U of 205 real-time monitoring Traction networks of device processed is said if the voltage U of Traction networks is greater than the second preset threshold U2, such as 845V The bright braking electric energy fed back on Traction networks 1 at this time is superfluous, then the first controller 205 controls two-way DC/DC converter 204 and works It is charged so that electric energy will be braked as battery 202 in charge mode.At this point, the braking electric energy that train 2 generates is fed back by distributor 203 It charges to Traction networks 1, while by two-way DC/DC converter 204 to battery 202, i.e., part is absorbed by battery 202 and made Electrokinetic energy.Later if the voltage U of Traction networks is less than third predetermined threshold value U3 such as 830V, illustrate that feedback arrives Traction networks 1 at this time On braking electric energy and Traction networks 1 on load requirement basically reached balance, then the first controller 205 controls two-way DC/DC Converter 204 is closed.At this point, control battery 202 stops absorbing braking electric energy, the braking electric energy that train 2 generates passes through distributor 203 feed back to Traction networks 1.
The embodiment of the present invention preferentially selects the battery 202 of train 2 to absorb braking electric energy, to realize the quick suction of braking electric energy It receives, thus, it prevents the braking electric energy not consumed from the voltage U of Traction networks being caused to increase, avoids the device failure on Traction networks 1.
According to one embodiment of present invention, as shown in figure 5, the voltage U when Traction networks 1 is greater than the 5th preset threshold U5, Such as when 855V, second controller 301 controls energy-accumulating power station 3 and charges.At this point, the electric energy in circuit is according to arrow shown in Fig. 5 The direction flowing of head instruction, the braking electric energy that train 2 generates feed back to Traction networks 1, and the battery 202 of train 2 and energy storage electricity Electric energy is braked in 3 absorptions of standing.In an embodiment of the present invention, when the battery of train 2 start absorb braking electric energy when, at this time due to Train on Traction networks 1 is less, or the train 2 braked at this time is more, therefore the voltage of Traction networks 1 can also continue to increase.When When the voltage U of Traction networks 1 is greater than the 5th preset threshold U5, control energy-accumulating power station 3 absorbs electric energy from Traction networks 1 and charges, from And the voltage of Traction networks is avoided to reach maximum rated voltage.
Similarly, according to one embodiment of present invention, as previously shown, when the voltage U of Traction networks is less than the first default threshold Value U1, such as when 810V, second controller 301 controls energy-accumulating power station 3 and discharges.Also, there are multiple energy storage on Traction networks 1 Power station 3, the preferential energy-accumulating power station 3 for selecting electricity high discharge to Traction networks, such as the power that the high energy-accumulating power station 3 of electricity discharges Greatly, the power that the low energy-accumulating power station 3 of electricity discharges is smaller, to reach the electric quantity balancing between energy-accumulating power station 3.
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 6th preset threshold U6, second controller 301 controls energy-accumulating power station 3 and stops electric discharge, wherein the 6th preset threshold U6 is greater than 5th preset threshold U5.
According to one embodiment of present invention, as shown in fig. 7, when the voltage U of Traction networks is less than the 7th preset threshold U7, First controller 205 control two-way DC/DC converter 204 enter discharge mode so that train 2 battery 202 to Traction networks 1 into Row electric discharge, wherein the 7th preset threshold U7 is less than the first preset threshold U1.At this point, the electric energy in circuit is according to arrow shown in Fig. 7 The direction of instruction is flowed, and the braking electric energy that train 2 generates feeds back to Traction networks 1, and energy-accumulating power station 3 and battery 202 are to traction Net 1 discharges.In the present embodiment, if the voltage U of Traction networks 1 is too small, the battery of energy-accumulating power station 3 and train 2 is controlled It discharges, so that the voltage of Traction networks 1 quickly be improved.
Specifically, as shown in figure 5, if the train on Traction networks 1 is less, or the train 2 braked at this time is more, then After the battery 202 of train 2 starts to absorb braking electric energy, the voltage of Traction networks 1 is continued growing, when the voltage U of Traction networks is big In the 5th preset threshold U5, such as when 855V, second controller 301 control energy-accumulating power station 3 from Traction networks 1 absorb braking electric energy into Row charging absorbs the pressure of braking electric energy to mitigate battery 202, to avoid the voltage U of Traction networks 1 most more than Traction networks 1 Big voltage rating Un.As shown in fig. 6, working as traction if the more voltage that will lead to Traction networks of train on Traction networks 1 declines The voltage U of net 1 is less than the first preset threshold U1, such as when 810V, second controller 301 control energy-accumulating power station 3 to Traction networks 1 into Row electric discharge.
Further, after energy-accumulating power station 3 discharges to Traction networks 1, the voltage U of Traction networks gos up, second controller 301 The voltage U for continuing to monitor Traction networks such as when 830V, illustrates anti-at this time when the voltage U of Traction networks is greater than the 6th preset threshold U6 The load on braking electric energy and Traction networks 1 being fed on Traction networks 1 has basically reached balance, then the control of second controller 301 storage It can the stopping electric discharge of power station 3.
Further, it as shown in fig. 7, if the train quantity on Traction networks 1 is more, is carried out in control energy-accumulating power station 3 After electric discharge, the voltage U of Traction networks will continue to reduce, when the voltage U of Traction networks is less than the 7th preset threshold U7, the second control Device 301 controls energy-accumulating power station 3 and discharges to Traction networks 1, meanwhile, the first controller 205 controls two-way DC/DC converter 204 Into discharge mode so that the battery 202 of train 2 discharges to Traction networks 1, so that the voltage of Traction networks 1 quickly be improved. Wherein, the discharge power of battery 202 is that the maximum allowable discharge power of battery 202 and the maximum of two-way DC/DC converter 204 permit Perhaps the smaller value in discharge power.
According to one embodiment of present invention, energy-accumulating power station 3 can be to be multiple, and multiple energy-accumulating power stations 3 are according between pre-determined distance Every setting.In an embodiment of the present invention, energy-accumulating power station 3 can be set among AT STATION, using the braking electric energy that will be absorbed as vehicle Station is powered, and for example, the air-conditioning at station, multimedia, light etc. are powered.
According to one embodiment of present invention, two energy-accumulating power stations 3, the power of energy-accumulating power station 3 can be set in every 3-6 kilometers It can be 0.5-2MW.Wherein, those skilled in the art can select suitable energy-accumulating power station 3 according to the specific operating environment of train 2 Quantity and power.
According to one embodiment of present invention, as shown in figure 8, train 2 further include: coulometric detector 206, wherein electricity Detector 206 is used to detect the electricity of battery 202, wherein when battery 202 absorbs braking electric energy, if the electricity of battery 202 Q is greater than the first power threshold Q1, such as 80%, then the first controller 205 controls two-way DC/DC converter 204 and closes so that electricity Pond 202 stops absorbing braking electric energy.In an embodiment of the present invention, the charge power of battery 202 and discharge power are restricted, The electricity after absorbing braking electric energy of battery 202 will increase, if the electricity of battery 202 is excessive, will affect battery 202 uses the longevity Life controls two-way DC/DC converter 204 and closes when electricity Q is greater than the first power threshold Q1, stops inhaling to control battery 202 Receive braking electric energy.
According to one embodiment of present invention, when battery 202 is discharged to Traction networks 1, if the electricity of battery 202 Q is less than the second power threshold Q2, such as 50%, then the first controller 205 controls two-way DC/DC converter 204 and closes so that electricity Pond 202 stops electric discharge.In an embodiment of the present invention, electricity can reduce battery 202 after discharge, when electricity Q is less than second It when power threshold Q2, controls two-way DC/DC converter 204 and closes, stop electric discharge to control battery 202.
Specifically, the charge power of battery 202 and discharge power are restricted, and control battery in the first controller 205 When 202 progress charge and discharge, pass through electricity SOC (State of Charge, the lotus of 206 real-time detection battery 202 of coulometric detector Electricity condition), and determine whether that battery 202 carries out charge and discharge according to the electricity Q of battery 202.
Specifically, when battery 202 absorbs braking electric energy, the first controller 205 judges whether the electricity Q of battery 202 is big In the first power threshold Q1 such as 80%, if the electricity Q of battery 202 is greater than 80%, by the maximum allowable charging of battery 202 Power limit is 0, controls two-way DC/DC converter 204 at this time and closes, and stops absorbing braking electric energy to control battery 202；If The electricity of battery 202 is less than or equal to 80%, then two-way DC/DC converter 204 is kept it turning on to control battery 202 and continue to absorb system Electrokinetic energy.
Further, when battery 202 is discharged to Traction networks 1, the first controller 205 judges the electricity Q of battery 202 Whether the maximum of battery 202 is permitted if the electricity Q of battery 202 is lower than 50% less than the second power threshold Q2 such as 50% Perhaps discharge power is limited to 0, is stopped at this point, the first controller 205 controls the two-way closing of DC/DC converter 204 with controlling battery 202 Only discharge.
According to one embodiment of present invention, as shown in figure 9, train 2 further include: mechanical brake 207, wherein mechanical Brake 207 is used to carry out mechanical braking to train 2.
According to one embodiment of present invention, after battery 202 absorbs braking electric energy, when the voltage U of Traction networks is greater than When the 4th preset threshold U4, the first controller 205 controls the starting cooperation electric brake 201 of mechanical brake 207 and carries out to train 2 Braking, wherein the 4th preset threshold U4 is greater than the second preset threshold U2.In an embodiment of the present invention, if on Traction networks 1 Train is less, or the train braked at this time is more, then after battery 202 and energy-accumulating power station 3 absorb braking electric energy, Traction networks 1 voltage U will continue to increase, and when the voltage of Traction networks 1 is greater than the 4th preset threshold U4, control mechanical brake 207 starts, To carry out auxiliary braking to train 2.
Specifically, after battery 202 and energy-accumulating power station 3 absorb braking electric energy, the voltage U of Traction networks will continue to increase Add, the voltage U of 205 real-time monitoring Traction networks of the first controller, if the voltage U of Traction networks is greater than the 4th preset threshold U4, First controller 205 controls mechanical brake 207 and starts, in this way, passing through mechanical braking while carrying out electric braking to train 2 Auxiliary braking is carried out to train 2, to reduce the braking electric energy of the generation of train 2, so that the voltage U of Traction networks be avoided to reach maximum Constant voltage, and precisely quickly parking may be implemented.
It should be noted that can equally be controlled when the travel speed of train 2 is lower than 5Km/h or needs inlet parking Mechanical brake 207 processed is opened to brake to train 2.
According to one embodiment of present invention, as shown in Figure 10, train 2 further include: contactor detector 208, wherein connect Whether the contactor that tentaculum detector 208 is used to detect train disconnects, wherein after detecting that contactor disconnects, the first control Device 205 processed controls two-way DC/DC converter 204 and enters discharge mode so that battery 202 is the power supply of train 2, and controls the limit of train 2 Power operation.
Specifically, when contactor detector 208 detects that contactor disconnects, illustrate that train 2 is in abnormal electrical power supply shape State, the first controller 205 judges that train 2 enters emergency driving mode, and issues emergency traction signal, to control two-way DC/DC Converter 204 enters discharge mode, at this point, battery 202 is train power supply.Meanwhile first controller 205 control battery 202 Discharge power is less than or equal to predetermined power threshold value such as 70KW, so that train 2 operates in limit power rating.
It is difficult to avoid scheduling caused by train casts anchor on the way for the emergency driving for realizing train by battery 202 as a result, The problem of, while avoiding failure train occupation working line.
A specific embodiment according to the present invention, train 2 can be straddle-type monorail train.
According to one embodiment of present invention, as shown in figure 12, train 2 further include: bogie 20 and car body 30, wherein Bogie 20 is suitable for straddle seat on track girder；Car body 30 is connected with bogie 20 and is travelled by the traction of bogie 20 along track girder.
According to one embodiment of present invention, as shown in figure 12, bogie 20 include: bogie frame 21, travelling wheel 22, Power device 23 and horizontal wheels 24, wherein bogie frame 21 is suitable for straddle seat and is connected on track girder and with car body 30；Travelling wheel 22 are pivotably mounted on bogie frame 21 and cooperate on the upper surface of track girder；Power device 23 is mounted on bogie It is sequentially connected on framework 21 and with travelling wheel 22；Horizontal wheels 24 are pivotably mounted on bogie frame 21 and cooperate in track On the side surface of beam.
According to one embodiment of present invention, as shown in figure 12, bogie 20 further include: traction device 25 and supported and suspended Device 26, wherein traction device 25 is mounted on bogie frame 21 and is connected with car body 30；Supported and suspended device 26 is mounted on It is connected on bogie frame 21 and with car body 30.
As described above, as shown in figure 11, by taking the voltage class of Traction networks is 750VDC as an example, the braking of the embodiment of the present invention The strategy of the recycling and reuse of electric energy is specific as follows:
One) recycling of electric energy is braked
According to one embodiment of present invention, in train braking, according to the voltage of Traction networks, the electricity of on-vehicle battery 202 Amount and Traction networks 1 on train 2 quantity come integrate carry out braking electric energy distribution, braking electric energy feedback to Traction networks 1 it Afterwards, consumption absorption first is carried out by other vehicles on train, superfluous braking electric energy preferentially controls battery by the first controller 205 202 are absorbed, and when on-vehicle battery 202 can not absorb or absorbability is limited, control energy-accumulating power station by second controller 301 3 are absorbed.
Specifically, as shown in figure 11, when braking to train 2, braking electric energy feeds back to Traction networks, first determines whether battery Whether 202 electricity Q is less than or equal to the first power threshold Q1, if electricity Q is less than or equal to the first power threshold Q1, battery 202 can be absorbed braking electric energy, at this point, the voltage U of 205 real-time monitoring Traction networks of the first controller, if the column on Traction networks 1 Load on vehicle negligible amounts, that is, Traction networks 1 is smaller or Traction networks 1 on the train braked it is more, the electricity of Traction networks can be caused The raising of pressure, when the voltage U of Traction networks 1 is greater than the second preset threshold U2, such as when 845V, the battery 202 of control train 2 absorbs Brake electric energy；If the voltage U of Traction networks 1 continues to increase after the battery of train 2 is absorbed, as the voltage U of Traction networks Greater than the 5th preset threshold U5, such as when 855V, second controller 301 controls energy-accumulating power station 3 and absorbs braking electric energy.In the present invention Embodiment in, after control battery 202 and energy-accumulating power station 3 absorb braking electric energy, the voltage U of Traction networks 1 can be reduced, when leading The voltage U for drawing net 1 is less than or equal to third predetermined threshold value U3, such as when 830V, controls battery 202 and energy-accumulating power station 3 stops absorbing Braking energy.
That is, as shown in figure 11, when the voltage U of Traction networks reaches the 5th preset threshold U5, controlling energy-accumulating power station 3 Start to absorb braking electric energy；When the voltage U of Traction networks is greater than the second preset threshold U2 less than the 5th preset threshold U5, control electricity Pond 202 absorbs braking electric energy；When the voltage U of Traction networks is lower than third predetermined threshold value U3, braking electric energy only feeds back to Traction networks 1。
Two) recycling of electric energy is braked
When the train run in the starting of train 2 or Traction networks 1 is more, the voltage U of Traction networks 1 can be reduced, and at this time will The braking electric energy that battery 202 and energy-accumulating power station 3 recycle is discharged on Traction networks 1 electric energy loss that can supplement Traction networks 1.Specifically Ground, first determines whether the electricity Q of battery 202 is more than or equal to the second power threshold Q2, if electricity Q is more than or equal to the second electricity Threshold value Q2, then battery 202 can discharge, at this point, the voltage U of 301 real-time monitoring Traction networks of second controller, works as Traction networks Voltage U less than the first preset threshold U1, such as when 810V, control energy-accumulating power station 3 discharges.Further, the first control Device 205 monitors the voltage U of Traction networks, and judges the voltage U of Traction networks whether less than the 7th preset threshold U7, if the first control Whether device 205 judges the voltage U of Traction networks less than the 7th preset threshold U7, then second controller 301 controls energy-accumulating power station 3 and carries out Electric discharge, meanwhile, the first controller 205 control two-way DC/DC converter 204 enter discharge mode so that train 2 battery 202 to Traction networks 1 discharge.
In addition to this, when power supply trouble occurs for Traction networks 1, it can control battery 202 into discharge mode, to realize column The emergency driving of vehicle 2.
In this way, the braking power consumption absorbed in battery 202 and energy-accumulating power station 301 can be fallen, in order to 202 He of battery Energy-accumulating power station 301 continues the recycling of braking energy, saves operation cost.
To sum up, the braking recovery system of the train proposed according to embodiments of the present invention, control centre obtain multiple energy storage electricity The electricity stood, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.To which the embodiment of the present invention can control multiple Energy-accumulating power station is balanced, co-ordination effectively prevent energy-accumulating power station over-discharge while the multiple energy-accumulating power stations of control are substantially discharged, Ensure the service life of energy-storage battery.Moreover, the first controller, which will prepare electric appliance and two-way DC/DC converter in train braking time control, to be made Electrokinetic energy feeds back to Traction networks, and controls two-way DC/DC converter according to the voltage of Traction networks and pass through braking of the battery to train Electric energy is absorbed, and when the voltage of Traction networks continues to increase, energy-accumulating power station is recycled to be absorbed.In addition, energy-accumulating power station is also It can be discharged according to the voltage of Traction networks Traction networks, to avoid the brownout of Traction networks, maintain Traction networks just Often work.In embodiments of the present invention, braking electric energy is first fed back into Traction networks when train is braked, at this time if traction Online train is relatively more, then the braking electric energy of feedback uniformly can be arrived other trains, therefore the voltage of Traction networks will not increase Very much.If instead the train at this time on Traction networks is less, or the train braked at this time is more, then the voltage of Traction networks will It increases, in embodiments of the present invention, is preferentially absorbed using on-vehicle battery, if the Traction networks after on-vehicle battery absorption Voltage continues to increase, then reuses energy-accumulating power station and absorbed.Since on-vehicle battery is just mounted on train, preferentially adopt Absorbed with battery, avoid the occurrence of braking electric energy it is excessive, can not be rapidly absorbed or consume, so as to cause the electric appliance of Traction networks The problem of being burned out.The embodiment of the present invention absorbs braking electric energy by battery on train and energy-accumulating power station, thus real The recycling and reuse for having showed braking electric energy, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention System parts can be protected with the voltage of effective monitoring Traction networks, improve security of system.
Figure 13 is the block diagram according to the control centre for train scheduling of the embodiment of the present invention.Such as Figure 13 institute Show, the control centre 4 dispatched for train 2 includes: acquisition device 402 and control device 403.
Wherein, acquisition device 402 is used to obtain the electricity for the multiple energy-accumulating power stations 3 being connected on Traction networks；Control device 403 carry out discharge power distribution according to the electricity of multiple energy-accumulating power stations.
That is, acquisition device 402 can be communicated with multiple energy-accumulating power stations 3 to obtain the work of multiple energy-accumulating power stations 3 Make state, such as remaining capacity, charging and discharging state etc., and control device 403 can also be communicated with multiple energy-accumulating power stations 3 with Multiple energy-accumulating power stations 3 are controlled.
Specifically, when the voltage U of Traction networks is less than the first preset threshold U1, such as when 810V, energy-accumulating power station 3 is put Electricity, at this point, the braking electric energy that train 2 generates feeds back to Traction networks, and energy-accumulating power station 3 discharges to Traction networks.In the present invention Embodiment in, if the more voltage decline that will lead to Traction networks of train on Traction networks, at this time in order to avoid Traction networks Voltage reach minimum rated voltage, need to control energy-accumulating power station 3 and discharge to Traction networks.It is specific real at of the invention one It applies in example, there are multiple energy-accumulating power stations 3 on Traction networks, and the preferential energy-accumulating power station 3 for selecting electricity high discharges to Traction networks, such as electricity The power for measuring the high electric discharge of energy-accumulating power station 3 is big, and the power that the low energy-accumulating power station 3 of electricity discharges is smaller, to reach energy-accumulating power station 3 Between electric quantity balancing.
A specific embodiment according to the present invention, when the electricity of energy-accumulating power station 3 is greater than third power threshold, control dress 403 control energy-accumulating power stations 3 are set with the first power discharge；When the electricity of energy-accumulating power station 3 is less than third power threshold, control device 403 control energy-accumulating power stations 3 are with the second power discharge, wherein the second power is less than the first power.
That is, acquisition device 402 is obtained each by being communicated with multiple energy-accumulating power stations 3 on Traction networks 1 Electricity, that is, SOC (State of Charge, state-of-charge) of energy-accumulating power station 3, and then put in energy-accumulating power station 3 to Traction networks When electric, control device 403 judges the electricity of each energy-accumulating power station 3, and control device 403 controls electricity and is greater than third electricity The energy-accumulating power station 3 of threshold value with biggish first power discharge, and control electricity less than third power threshold energy-accumulating power station 3 with compared with The second small power discharge, to reach the electric quantity balancing between energy-accumulating power station 3.
As an example it is assumed that there is A energy-accumulating power station 3, and the 1st energy-accumulating power station 3 to i-th energy storage electricity on Traction networks 1 3 electricity of standing is respectively less than third power threshold, and the electricity of i+1 energy-accumulating power station 3 to the A energy-accumulating power station 3 is all larger than third Power threshold, then, control device 403 controls the 1st 3 to i-th energy-accumulating power station 3 of energy-accumulating power station with lesser second power Electric discharge, and i+1 energy-accumulating power station 3 is controlled to the A energy-accumulating power station 3 with biggish first power discharge.
To sum up, the control centre for train scheduling proposed according to embodiments of the present invention is obtained more by acquisition device The electricity of a energy-accumulating power station, and then control device carries out discharge power distribution according to the electricity of multiple energy-accumulating power stations.This hair as a result, Bright embodiment can control multiple energy-accumulating power stations equilibriums, co-ordination, while the multiple energy-accumulating power stations of control are substantially discharged, effectively Prevent energy-accumulating power station over-discharge, it is ensured that the service life of energy-storage battery.
Figure 14 is the flow chart of the braking recovery method of train according to an embodiment of the present invention.The braking recovery system of train Including Traction networks, train, multiple energy-accumulating power stations and control centre, train will brake electric energy feedback in braking to the traction Net.As shown in figure 14, the braking recovery method the following steps are included:
S1: the voltage of energy-accumulating power station acquisition Traction networks.
S2: energy-accumulating power station discharges when the voltage of Traction networks is less than the first preset threshold to Traction networks.
S3: control centre obtains the electricity of multiple energy-accumulating power stations.
S4: control centre carries out discharge power distribution according to the electricity of multiple energy-accumulating power stations.
That is, control centre can be communicated with multiple energy-accumulating power stations to obtain the work shape of multiple energy-accumulating power stations State, such as remaining capacity, charging and discharging state etc., and control centre can also be communicated to multiple storages with multiple energy-accumulating power stations Energy power station is controlled.
Specifically, when the voltage U of Traction networks is less than the first preset threshold U1, such as when 810V, control energy-accumulating power station into Row electric discharge, at this point, the electric energy in circuit is flowed according to the direction that arrow shown in Fig. 6 indicates, the braking electric energy feedback that train generates To Traction networks, and energy-accumulating power station discharges to Traction networks.In an embodiment of the present invention, if the train on Traction networks is more The voltage decline that will lead to Traction networks, at this time in order to avoid the voltage of Traction networks reaches minimum rated voltage, needs to control storage It discharges to Traction networks in energy power station.In one particular embodiment of the present invention, excellent there are multiple energy-accumulating power stations on Traction networks First the high energy-accumulating power station of selection electricity discharges to Traction networks, such as the power of the high energy-accumulating power station electric discharge of electricity is big, and electricity is low The power of energy-accumulating power station electric discharge is smaller, to reach the electric quantity balancing between energy-accumulating power station.
A specific embodiment according to the present invention carries out discharge power distribution, packet according to the electricity of multiple energy-accumulating power stations Include: when the electricity of energy-accumulating power station is greater than third power threshold, control centre controls energy-accumulating power station with the first power discharge；Work as storage When the electricity in energy power station is less than third power threshold, control centre controls energy-accumulating power station with the second power discharge, wherein the second function Rate is less than the first power.
That is, control centre obtains each energy storage electricity by being communicated with multiple energy-accumulating power stations on Traction networks The electricity stood i.e. SOC (State of Charge, state-of-charge), and then when energy-accumulating power station is discharged to Traction networks, control Center judges the electricity of each energy-accumulating power station, and control electricity is greater than the energy-accumulating power station of third power threshold with biggish the One power discharge, and energy-accumulating power station of the electricity less than third power threshold is controlled with lesser second power discharge, to reach Electric quantity balancing between energy-accumulating power station.
As an example it is assumed that have A energy-accumulating power station on Traction networks, and the 1st energy-accumulating power station is to i-th energy-accumulating power station Electricity is respectively less than third power threshold, and the electricity of i+1 energy-accumulating power station to the A energy-accumulating power station is all larger than third electricity threshold Value, then, control centre controls the 1st energy-accumulating power station to i-th of energy-accumulating power station with lesser second power discharge, and controls I+1 energy-accumulating power station is to the A energy-accumulating power station with biggish first power discharge.
The braking recovery method for the train that the embodiment of the present invention proposes as a result, control centre obtain multiple energy-accumulating power stations Electricity, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.To which the embodiment of the present invention can control multiple energy storage Power station is balanced, co-ordination effectively prevent energy-accumulating power station over-discharge while the multiple energy-accumulating power stations of control are substantially discharged, it is ensured that The service life of energy-storage battery.Moreover, energy-accumulating power station discharges when the voltage of Traction networks is less than the first preset threshold to Traction networks, To avoid the brownout of Traction networks, the normal work of Traction networks is maintained.Also, the embodiment of the present invention can be with effective monitoring The voltage of Traction networks protects system parts, improves security of system.
Further, according to one embodiment of present invention, as shown in figure 15, the braking recovery method of train further include:
S10: the voltage U of Traction networks is detected.
S20: the two-way DC/DC converter of train is controlled by the battery of train to train according to the voltage of the Traction networks Braking electric energy is absorbed.
In addition, the braking recovery method of train further include: detect the voltage of Traction networks；It is controlled and is stored up according to the voltage of Traction networks It can power station progress charge or discharge.
Specifically, when train is braked, braking electric energy is generated according to brake force, and braking electric energy is fed back to and is led Draw net.When the load on train negligible amounts, that is, Traction networks on Traction networks is smaller or Traction networks on the train braked it is more When, feeding back can be more than electric energy needed for the train operation on Traction networks, so as to cause Traction networks to the braking electric energy on Traction networks Voltage U increase, the voltage U of real-time monitoring Traction networks, when Traction networks voltage U increase when, first control battery absorb braking Electric energy.Meanwhile continue monitor Traction networks voltage, if control train battery absorbed after Traction networks voltage U Continue to increase, then controls energy-accumulating power station absorption braking electric energy and charge.Similarly, when the train quantity on Traction networks is more, When load i.e. on Traction networks is larger, the voltage U of Traction networks can be reduced, the voltage U of real-time monitoring Traction networks, when the electricity of Traction networks When U being pressed to reduce, control energy-accumulating power station first discharges to improve the voltage of Traction networks, if the voltage U of Traction networks continues to drop It is low, then it controls battery and discharges to improve the voltage of Traction networks.
It should be noted that battery setting is ON TRAINS, braking electric energy can be quickly absorbed, due to energy-accumulating power station and train The distance between farther out, cause energy-accumulating power station absorb braking electric energy lag.Therefore, preferential selection is electric in an embodiment of the present invention Pond absorbs braking electric energy, to realize the quick absorption of braking electric energy, to prevent the braking electric energy for not being absorbed or consuming from drawing The voltage U for playing Traction networks is increased, and is protected the components of system, is avoided the electric appliance on Traction networks from damaging, improve the peace of system Quan Xing.
Another specific embodiment according to the present invention, if there was only rows of vehicle operations on Traction networks is not have on Traction networks There are other trains to absorb braking electric energy, and the braking electric energy that train braking generates is larger, then brakes electric energy mainly by energy-accumulating power station It absorbs, such as control battery absorbs the 30% of braking electric energy first, then controls energy-accumulating power station absorbs braking electric energy 70%, with Complete the recycling of braking electric energy.
Another specific embodiment according to the present invention, if having multiple row train operation on Traction networks, and in energy-accumulating power station After absorbing braking electric energy, the voltage U of Traction networks continues to increase, then can be by the non-brake train on Traction networks to non-system The battery of dynamic train charges.Assuming that the braking electric energy for not being absorbed or consuming on Traction networks is Q ', there are N column column on Traction networks The average value of vehicle, then the braking electric energy that the battery of each train absorbs on Traction networks is Q '/N.
The embodiment of the present invention absorbs braking electric energy by the battery on control train as a result, realizes returning for braking electric energy It receives and recycles, reduce energy waste, reduce the load of Traction networks.Also, the embodiment of the present invention can be led with effective monitoring Draw the voltage of net, protect system parts, improves security of system.
According to one embodiment of present invention, two-way DC/DC converter is controlled according to the voltage of Traction networks and passes through train Battery absorb to the braking electric energy of train and be specifically included: judge whether the voltage of Traction networks is greater than the second preset threshold U2, Such as 845V；If the voltage of Traction networks is greater than the second preset threshold U2, controls two-way DC/DC converter and enter charge mode So that braking electric energy is stated in battery suction.At this point, controlling two-way DC/DC converter on high-tension side DC power conversion is the electricity with battery Matched direct current is pressed, absorbs braking electric energy to charge the battery i.e. control battery.
In an embodiment of the present invention, if controlling two-way DC/DC enters discharge mode, the direct current that battery is provided Be changed into the direct current with the voltage matches of Traction networks, with control battery discharged i.e. by the braking electric energy stored in battery it is anti- It is fed to Traction networks.
According to one embodiment of present invention, after control battery absorbs braking electric energy, the voltage of Traction networks can decline, Two-way DC/DC converter is controlled according to the voltage of Traction networks the braking electric energy of train is absorbed by the battery of train also wrap It includes: judging whether the voltage of Traction networks is less than third predetermined threshold value U3, such as 830V；If it is pre- that the voltage of Traction networks is less than third If threshold value U3, then controls battery and stop absorbing braking electric energy, wherein third predetermined threshold value U3 is less than the second preset threshold U2.
Specifically, as shown in figure 16, it is specifically included when being recycled by braking electric energy of the battery to train following Step:
S101: braking train, and generates braking electric energy according to brake force, and braking electric energy is fed back to traction Net.
S102: the voltage U of real-time monitoring Traction networks.
S103: judge whether the voltage U of Traction networks is greater than the second preset threshold U2 such as 845V.
If so, explanation feeds back the braking electric energy surplus on Traction networks at this time, S104 is thened follow the steps；If not, saying Load requirement on the bright braking electric energy fed back on Traction networks at this time and Traction networks has basically reached balance, thens follow the steps S105。
S104: control battery absorbs partial brake electric energy.
S105: judge whether the voltage U of Traction networks is less than third predetermined threshold value U3 such as 830V.
If so, thening follow the steps S106；If not, thening follow the steps S103.
S106: control battery stops absorbing braking electric energy, and the braking electric energy that train generates feeds back to Traction networks.
The embodiment of the present invention preferentially selects the battery of train to absorb braking electric energy, to realize the quick absorption of braking electric energy, To prevent the braking electric energy not consumed from the voltage U of Traction networks being caused to increase, avoid the device failure on Traction networks.
According to one embodiment of present invention, specific according to the control energy-accumulating power station progress charge or discharge of the voltage of Traction networks The following steps are included: judging whether the voltage of Traction networks is greater than the 5th preset threshold U5, such as 855V；If the voltage of Traction networks Greater than the 5th preset threshold U5, then controls energy-accumulating power station and charge.In an embodiment of the present invention, in the battery of control train After absorbing braking electric energy, at this time since the train on Traction networks is less, or the train braked at this time is more, therefore Traction networks Voltage can also continue to increase.When the voltage U of Traction networks is greater than the 5th preset threshold U5, control energy-accumulating power station is inhaled from Traction networks It receives electric energy to charge, so that the voltage of Traction networks be avoided to reach maximum rated voltage.
According to one embodiment of present invention, it charges as previously mentioned, controlling energy-accumulating power station according to the voltage of Traction networks Or electric discharge further include: judge the voltage of Traction networks whether less than the first preset threshold U1, such as 810V；If the voltage of Traction networks Less than the first preset threshold U1, then controls energy-accumulating power station and discharge.Also, there are multiple energy-accumulating power stations on Traction networks, preferentially The high energy-accumulating power station of electricity is selected to discharge to Traction networks, such as the power of the high energy-accumulating power station electric discharge of electricity is big, the low storage of electricity The power of energy power station electric discharge is smaller, to reach the electric quantity balancing between energy-accumulating power station.
According to one embodiment of present invention, after energy-accumulating power station discharges to Traction networks, the braking recovery method of train Further include: judge whether the voltage of Traction networks is greater than the 6th preset threshold U6；If the voltage of Traction networks is greater than the 6th default threshold Value U6 then controls energy-accumulating power station and stops electric discharge, wherein the 6th preset threshold U6 is greater than the 5th preset threshold U5.
According to one embodiment of present invention, the braking recovery method of train further include: judge Traction networks voltage whether Less than the 7th preset threshold U7；If the voltage of Traction networks less than the 7th preset threshold U7, control two-way DC/DC converter into Enter discharge mode so that the battery of train discharges to Traction networks, wherein the 7th preset threshold U7 is less than the first preset threshold U1.In the present embodiment, if the voltage U of Traction networks is too small, the battery for controlling energy-accumulating power station and train discharges, from And the voltage of Traction networks is quickly improved.
Specifically, as shown in figure 17, in an embodiment of the present invention, control energy-accumulating power station to the braking electric energy of train into Row recycling when specifically includes the following steps:
S201: the voltage U of Traction networks is monitored.
S202: judge whether the voltage U of Traction networks is greater than the 5th preset threshold U5 such as 855V.
If so, the braking electric energy that explanation is fed back at this time on Traction networks is excessive, S203 is thened follow the steps；If It is no, then follow the steps S204.
S203: control energy-accumulating power station charges.
Specifically, braking electric energy is absorbed by energy-accumulating power station, the pressure that battery absorbs braking electric energy can be mitigated, thus Avoid the voltage U of Traction networks more than the maximum rated voltage Un of Traction networks.
S204: judge the voltage U of Traction networks whether less than the first preset threshold U1 such as 810V.
If so, thening follow the steps S205；If it is not, then repeating step S204.
S205: control energy-accumulating power station discharges.
S206: the voltage U of Traction networks is monitored.
S207: judge whether the voltage U of Traction networks gos up.
If so, thening follow the steps S208；If not, thening follow the steps S210.
S208: judge whether the voltage U of Traction networks is greater than the 6th preset threshold U6 such as 830V.
If so, the load that explanation feeds back on braking electric energy and Traction networks on Traction networks at this time has been basically reached and has been put down Weighing apparatus, thens follow the steps S209；If it is not, then repeating step 208.
S209: control energy-accumulating power station stops electric discharge.
S210: judge the voltage U of Traction networks whether less than the 7th preset threshold U7.
If so, thening follow the steps S211；If it is not, then repeating step S210.
S211: control energy-accumulating power station discharges to Traction networks, meanwhile, control battery discharges to Traction networks.
According to one embodiment of present invention, after battery absorbs braking electric energy, the braking recovery method of train is also wrapped It includes: judging whether the voltage of Traction networks is greater than the 4th preset threshold U4；If the voltage of Traction networks is greater than the 4th preset threshold U4, It then controls train to carry out mechanical braking cooperation and implement electric braking braking train, wherein the 4th preset threshold U4 is greater than the Two preset threshold U2.In an embodiment of the present invention, if the train on Traction networks is less, or the train braked at this time compared with More, then after battery and energy-accumulating power station absorb braking electric energy, the voltage U of Traction networks will continue to increase, when the voltage of Traction networks When greater than the 4th preset threshold U4, control train carries out mechanical braking, to carry out auxiliary braking to train.
Specifically, after battery and energy-accumulating power station absorb braking electric energy, the voltage U of Traction networks will continue to increase, real When monitor the voltage U of Traction networks and control train if the voltage U of Traction networks is greater than the 4th preset threshold U4 and carry out mechanical system It is dynamic, in this way, auxiliary braking is carried out to train by mechanical braking while carrying out electric braking to train, to reduce train generation Braking electric energy, so that the voltage U of Traction networks be avoided to reach maximum rated voltage, and precisely quickly parking may be implemented.
According to one embodiment of present invention, the braking recovery method of train further include: detect train contactor whether It disconnects；If detecting that contactor disconnects, controlling battery is train power supply, and controls train limit Power operation.
Specifically, when detecting that contactor disconnects, illustrate that train is in abnormal electrical power supply state, judge that train enters and answer Anxious drive mode, and emergency traction signal is issued, it is discharged with controlling battery, at this point, battery is train power supply.Meanwhile it controlling The discharge power of battery processed is less than or equal to predetermined power threshold value such as 70KW, so that train operation is in limit power rating.
The emergency driving for realizing train by battery as a result, avoids scheduling difficulty caused by train casts anchor on the way Problem, while avoiding failure train occupation working line.
According to one embodiment of present invention, the braking recovery method of train further include: detect the electricity of battery, and judge Whether the electricity of battery is greater than the first power threshold, such as 80%；If the electricity of battery is greater than the first power threshold, control Two-way DC/DC converter is closed so that battery stops absorbing braking electric energy.In an embodiment of the present invention, the charge power of battery It is restricted with discharge power, battery electricity after absorbing braking electric energy will increase, if the electricity of battery is excessive, will affect electricity The service life in pond, when electricity Q is greater than the first power threshold Q1, control battery stops absorbing braking electric energy.
According to one embodiment of present invention, when battery is discharged to Traction networks, the braking recovery method of train is also It include: to detect the electricity of battery, and judge the electricity of battery whether less than the second power threshold, such as 50%；If battery Electricity then controls two-way DC/DC converter and closes so that battery stops electric discharge less than the second power threshold.In implementation of the invention In example, electricity can reduce battery after discharge, and when electricity Q is less than the second power threshold Q2, control battery stops electric discharge.
Specifically, it is limited by charge power and discharge power of the method shown in Figure 18 to battery.
S301: judge whether train is in emergency driving mode.
If it is, repeating step S301；If not, thening follow the steps S302.
S302: the electricity Q of real-time detection battery.
S303: judge whether the electricity Q of battery is greater than the first power threshold Q1 such as 80%.
If so, thening follow the steps S304；If not, thening follow the steps S305.
S304: control battery stops absorbing braking electric energy.At this point, the maximum allowable charge power of battery is limited to 0.
S305: judge the electricity Q of battery whether less than the second power threshold Q2 such as 50%.
If so, thening follow the steps S306；If not, thening follow the steps S307.
S306: control battery stops electric discharge.At this point, the maximum allowable discharge power of battery is limited to 0.
S307: terminate.
It should be noted that step S303 and S304 are executed in battery charging process, S305 and S306 are in battery for step It is executed in discharge process.
As described above, as shown in Figures 19 and 20, the specific step of the recycling and reuse of the braking electric energy of the embodiment of the present invention It is rapid as follows:
One) recycling of electric energy is braked
S401: braking train, and generates braking electric energy according to brake force, and braking electric energy is fed back to traction Net.
S402: judge whether the electricity Q of battery is less than or equal to the first power threshold Q1.
If so, thening follow the steps S403；If it is not, then repeating step S402.
S403: the voltage U of real-time monitoring Traction networks.
S404: judge whether the voltage U of Traction networks is greater than the second preset threshold U2 such as 845V.
If so, thening follow the steps S405；If not, thening follow the steps S406.
S405: control battery absorbs braking electric energy.
S406: control battery does not absorb braking energy.
S407: judge whether the voltage U of Traction networks is greater than the 5th preset threshold U5 such as 855V.
If so, thening follow the steps S408；If not, thening follow the steps S404.
S408: control energy-accumulating power station absorbs braking electric energy.
Two) recycling of electric energy is braked
S501: judge whether the electricity Q of battery is more than or equal to the second power threshold Q2.
If so, thening follow the steps S502；If it is not, then repeating step S501.
S502: the voltage U of Traction networks is monitored.
S503: judge the voltage U of Traction networks whether less than the first preset threshold U1 such as 810V.
If so, thening follow the steps S504；If not, thening follow the steps S505.
S504: control energy-accumulating power station discharges.
S505: control energy-accumulating power station is without electric discharge.
S506: judge the voltage U of Traction networks whether less than the 7th preset threshold U7.
If so, thening follow the steps S507；If it is not, then repeating step S506.
S507: control energy-accumulating power station discharges to Traction networks, meanwhile, control battery discharges to Traction networks.
In addition to this, when power supply trouble occurs for Traction networks, it can control battery and enter discharge mode, to realize train Emergency driving.
In this way, the braking power consumption absorbed in battery and energy-accumulating power station can be fallen, in order to battery and energy-accumulating power station The recycling for continuing braking energy, saves operation cost.
To sum up, the braking recovery method of the train proposed according to embodiments of the present invention, control centre obtain multiple energy storage electricity The electricity stood, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.To which the embodiment of the present invention can control multiple Energy-accumulating power station is balanced, co-ordination effectively prevent energy-accumulating power station over-discharge while the multiple energy-accumulating power stations of control are substantially discharged, Ensure the service life of energy-storage battery.Moreover, in embodiments of the present invention, can also first be braked to train, and raw according to brake force Traction networks are fed back at braking electric energy, and by braking electric energy, then monitor the voltage of Traction networks, and according to the voltage control of Traction networks Battery processed absorbs the braking electric energy of train, continue monitor Traction networks voltage, and judge Traction networks voltage whether after Height of continuing rising then controls energy-accumulating power station and absorbs braking electric energy if it is determined that the voltage of Traction networks continues height.Further, it is also possible to root It discharges according to the voltage control energy-accumulating power station of Traction networks, to avoid the brownout of Traction networks, maintains the normal of Traction networks Work.In embodiments of the present invention, braking electric energy is fed back into Traction networks first after braking to train, and judges Traction networks On train quantity the braking electric energy of feedback is uniformly arrived into other trains, is led at this time if the train on Traction networks is relatively more The voltage for drawing net will not increase very much., whereas if the train on Traction networks is less, or the train braked at this time is more, then The voltage of Traction networks can be increased quickly, and in an embodiment of the present invention, priority acccess control on-vehicle battery absorbs braking electric energy, if vehicle The voltage of Traction networks continues to increase after load energy absorption braking electric energy, then controls energy-accumulating power station and absorb braking electric energy.Due to vehicle It carries battery to be mounted on train, therefore priority acccess control battery absorbs braking electric energy, it is excessive to avoid the occurrence of braking electric energy, can not be by It quickly absorbs or consumes, the problem of being burned out so as to cause the electric appliance of Traction networks.The embodiment of the present invention passes through on control train Battery and energy-accumulating power station, which absorb braking electric energy, reduces energy waste to realize the recycling and reuse of braking electric energy, drops The load of low Traction networks.Also, the embodiment of the present invention can be protected system parts, be mentioned with the voltage of effective monitoring Traction networks High security of system.
Figure 21 is the flow chart of the control method according to an embodiment of the present invention for train scheduling.As shown in figure 21, side Method the following steps are included:
S100: the electricity for the multiple energy-accumulating power stations being connected on Traction networks is obtained.
S200: discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.
That is, control centre can be communicated with multiple energy-accumulating power stations to obtain the work shape of multiple energy-accumulating power stations State, such as remaining capacity, charging and discharging state etc., and control centre can also be communicated to multiple storages with multiple energy-accumulating power stations Energy power station is controlled.
Specifically, when the voltage U of Traction networks is less than the first preset threshold U1, such as when 810V, energy-accumulating power station is put Electricity, at this point, the braking electric energy that train generates feeds back to Traction networks, and energy-accumulating power station discharges to Traction networks.Of the invention In embodiment, if the more voltage decline that will lead to Traction networks of train on Traction networks, at this time in order to avoid Traction networks Voltage reaches minimum rated voltage, needs to control energy-accumulating power station and discharges to Traction networks.In a specific implementation of the invention In example, there are multiple energy-accumulating power stations on Traction networks, the preferential energy-accumulating power station for selecting electricity high discharges to Traction networks, such as electricity is high Energy-accumulating power station electric discharge power it is big, electricity it is low energy-accumulating power station electric discharge power it is smaller, to reach between energy-accumulating power station Electric quantity balancing.
A specific embodiment according to the present invention, when the electricity of energy-accumulating power station is greater than third power threshold, control storage Energy power station is with the first power discharge；When the electricity of energy-accumulating power station is less than third power threshold, energy-accumulating power station is controlled with the second function Rate electric discharge, wherein the second power is less than the first power.
That is, control centre obtains each energy storage electricity by being communicated with multiple energy-accumulating power stations on Traction networks The electricity stood i.e. SOC (State of Charge, state-of-charge), and then when energy-accumulating power station is discharged to Traction networks, to every The electricity of a energy-accumulating power station is judged, and controls energy-accumulating power station of the electricity greater than third power threshold with biggish first power Electric discharge, and energy-accumulating power station of the electricity less than third power threshold is controlled with lesser second power discharge, to reach energy storage electricity Electric quantity balancing between standing.
As an example it is assumed that have A energy-accumulating power station on Traction networks, and the 1st energy-accumulating power station is to i-th energy-accumulating power station Electricity is respectively less than third power threshold, and the electricity of i+1 energy-accumulating power station to the A energy-accumulating power station is all larger than third electricity threshold Value, then, the 1st energy-accumulating power station is controlled to i-th of energy-accumulating power station with lesser second power discharge, and controls i+1 storage Energy power station is to the A energy-accumulating power station with biggish first power discharge.
To sum up, the control method for train scheduling proposed according to embodiments of the present invention, obtains multiple energy-accumulating power stations Electricity, and discharge power distribution is carried out according to the electricity of multiple energy-accumulating power stations.The embodiment of the present invention can control multiple energy storage as a result, Power station is balanced, co-ordination effectively prevent energy-accumulating power station over-discharge while the multiple energy-accumulating power stations of control are substantially discharged, it is ensured that The service life of energy-storage battery.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (27)

1. a kind of braking recovery system of train characterized by comprising
Traction networks；
The multiple row train being connected on the Traction networks, train described in each column include:
Electric brake；
Battery；
Distributor, the distributor are connected with the electric brake, have node between the distributor and the electric brake；
One end of two-way DC/DC converter, the two-way DC/DC converter is connected with the battery, the two-way DC/DC transformation The other end of device is connected with the node；
First controller, first controller are connected with the distributor and the two-way DC/DC converter respectively,
First controller will be made for controlling the distributor and the two-way DC/DC converter in the train braking Electrokinetic energy is fed back to the Traction networks；
Multiple energy-accumulating power stations, the multiple energy-accumulating power station are connected with the Traction networks, and the energy-accumulating power station includes second controller, The second controller is for controlling the energy-accumulating power station when the voltage of the Traction networks is less than the first preset threshold to described Traction networks discharge；
Control centre carries out for obtaining the electricity of the multiple energy-accumulating power station, and according to the electricity of the multiple energy-accumulating power station Discharge power distribution, so that the multiple energy-accumulating power station balanced operation；
Wherein, when the electricity of the energy-accumulating power station is greater than third power threshold, the control centre controls the energy-accumulating power station With the first power discharge；
When the electricity of the energy-accumulating power station is less than the third power threshold, the control centre control the energy-accumulating power station with Second power discharge, wherein second power is less than first power；
Wherein, first controller controls the distributor according to the voltage of the Traction networks and the two-way DC/DC is converted Device is absorbed by braking electric energy of the battery to the train；
Wherein, first controller is controlled in other train brakings on the Traction networks according to the voltage of the Traction networks The two-way DC/DC converter is so that the battery absorbs the braking electric energy of other trains；
Wherein, first controller is used for when the voltage of the Traction networks is less than seven preset thresholds, is controlled described two-way DC/DC converter enters discharge mode so that the battery of the train discharges to the Traction networks, wherein the described 7th is pre- If threshold value is less than first preset threshold.
2. the braking recovery system of train as described in claim 1, which is characterized in that
First controller is used to control the two-way DC/DC when the voltage of the Traction networks is greater than the second preset threshold and becomes Parallel operation enters charge mode so that the battery absorbs the braking electric energy.
3. the braking recovery system of train as claimed in claim 2, which is characterized in that
First controller is used to control the two-way DC/DC when the voltage of the Traction networks is less than third predetermined threshold value Converter is closed so that the battery stops absorbing the braking electric energy, wherein the third predetermined threshold value is less than described second Preset threshold.
4. the braking recovery system of train as claimed in claim 2, which is characterized in that the train further include:
Coulometric detector, the coulometric detector are connected with first controller, and the coulometric detector is described for detecting The electricity of battery, wherein when the battery absorbs the braking electric energy, first controller is used for the electricity in the battery Amount controls the two-way DC/DC converter and closes so that the battery stops absorbing the braking electricity when being greater than the first power threshold Energy.
5. the braking recovery system of train as claimed in claim 2, which is characterized in that the train further include:
Mechanical brake, for carrying out mechanical braking to train.
6. the braking recovery system of train as claimed in claim 5, which is characterized in that
After the battery absorbs the braking electric energy, first controller is used for the voltage in the Traction networks greater than the When four preset thresholds, controls the mechanical brake starting and the electric brake is cooperated to brake the train, wherein institute The 4th preset threshold is stated greater than second preset threshold.
7. the braking recovery system of train as described in claim 1, which is characterized in that
The second controller be used for the Traction networks voltage be greater than five preset thresholds when, control the energy-accumulating power station into Row charging.
8. the braking recovery system of train as claimed in claim 7, which is characterized in that in the energy-accumulating power station to the traction After net electric discharge, the second controller is used to control the storage when the voltage of the Traction networks is greater than six preset thresholds Energy power station stops electric discharge, wherein the 6th preset threshold is greater than the 5th preset threshold.
9. the braking recovery system of train as described in claim 1, which is characterized in that when the battery to the Traction networks into When row electric discharge, first controller is for controlling the two-way DC/ when the electricity of the battery is less than the second power threshold DC converter is closed so that the battery stops electric discharge.
10. the braking recovery system of train as described in claim 1, which is characterized in that the train further include:
Contactor detector, the contactor detector are connected with first controller, and the contactor detector is for examining Whether the contactor for surveying the train disconnects, wherein and first controller is used for after detecting that the contactor disconnects, It controls the distributor to close, and controls the two-way DC/DC converter and enter discharge mode so that the battery is the column Vehicle power supply, and control the train limit Power operation.
11. the braking recovery system of train as described in claim 1, which is characterized in that the energy-accumulating power station be it is multiple, it is described Multiple energy-accumulating power stations are arranged according to pre-determined distance interval.
12. the braking recovery system of train as claimed in claim 11, which is characterized in that two institutes are arranged in every 3-6 kilometers Energy-accumulating power station is stated, the power of the energy-accumulating power station is 0.5-2MW.
13. the braking recovery system of train as described in claim 1, which is characterized in that the train is straddle-type monorail column Vehicle.
14. the braking recovery system of train as claimed in claim 13, which is characterized in that the train further include:
Bogie, the bogie are suitable for straddle seat on track girder；
Car body, the car body are connected with the bogie and are travelled by bogie traction along the track girder.
15. the braking recovery system of train as claimed in claim 14, which is characterized in that the bogie includes:
Bogie frame, the bogie frame are suitable for straddle seat and are connected on the track girder and with the car body；
Travelling wheel, the travelling wheel are pivotably mounted on the bogie frame and cooperate in the upper surface of the track girder On；
Power device, the power device is mounted on the bogie frame and is sequentially connected with the travelling wheel, described dynamic Power device includes the electric brake and driver；
Horizontal wheels, the horizontal wheels are pivotably mounted on the bogie frame and cooperate in the side surface of the track girder On.
16. the braking recovery system of train as claimed in claim 15, which is characterized in that the bogie further include:
Traction device, the traction device are mounted on the bogie frame and are connected with the car body；
Supported and suspended device, the supported and suspended device are mounted on the bogie frame and are connected with the car body.
17. a kind of control centre for train scheduling characterized by comprising
Acquisition device, for obtaining the electricity for the multiple energy-accumulating power stations being connected on Traction networks；
Control device, for carrying out discharge power distribution according to the electricity of the multiple energy-accumulating power station, so that the multiple energy storage Power station balanced operation；
Wherein, when the electricity of the energy-accumulating power station is greater than third power threshold, the control device controls the energy-accumulating power station With the first power discharge；
When the electricity of the energy-accumulating power station is less than the third power threshold, the control device control the energy-accumulating power station with Second power discharge, wherein second power is less than first power；
Wherein, multiple row train is connected on the Traction networks, train described in each column leads braking electric energy feedback to described in braking Draw net, the battery is controlled according to the voltage of the Traction networks, the braking electric energy of the train is absorbed；
Wherein, train described in each column controls institute according to the voltage of the Traction networks in other train brakings on the Traction networks Battery is stated to absorb the braking electric energy of other trains；
Wherein, when the voltage of the Traction networks is less than seven preset thresholds, by the battery of the train to the Traction networks It discharges, wherein the 7th preset threshold is less than first preset threshold.
18. a kind of braking recovery method of train, which is characterized in that the braking recovery system of train includes Traction networks, train, more A energy-accumulating power station and control centre, the train in braking will braking electric energy feedback to the Traction networks, the method includes Following steps:
The energy-accumulating power station obtains the voltage of the Traction networks；
The energy-accumulating power station discharges when the voltage of the Traction networks is less than the first preset threshold to the Traction networks；
The control centre obtains the electricity of the multiple energy-accumulating power station；
The control centre carries out discharge power distribution according to the electricity of the multiple energy-accumulating power station, so that the multiple energy storage is electric It stands balanced operation；
It is wherein, described that discharge power distribution is carried out according to the electricity of the multiple energy-accumulating power station, comprising:
When the electricity of the energy-accumulating power station is greater than third power threshold, the control centre controls the energy-accumulating power station with first Power discharge；
When the electricity of the energy-accumulating power station is less than the third power threshold, the control centre control the energy-accumulating power station with Second power discharge, wherein second power is less than first power；
Wherein, it when the voltage of the Traction networks is less than seven preset thresholds, controls the two-way DC/DC converter and enters electric discharge Mode is so that the battery of the train discharges to the Traction networks, wherein the 7th preset threshold is less than described first Preset threshold；
Wherein, the braking recovery method of the train further includes the voltage for detecting the Traction networks；According to the Traction networks Voltage control the two-way DC/DC converter of the train braking electric energy of the train carried out by the battery of the train It absorbs；
Wherein, when connecting multiple row train on the Traction networks, in other train brakings on the Traction networks, according to described The voltage of Traction networks controls the battery and absorbs to the braking electric energy of other trains.
19. the braking recovery method of train as claimed in claim 18, which is characterized in that according to the voltage control of the Traction networks The two-way DC/DC converter is made to absorb the braking electric energy of the train by the battery of the train, comprising:
When the voltage of the Traction networks is greater than the second preset threshold, controls the two-way DC/DC converter and enter charge mode So that the battery absorbs the braking electric energy.
20. the braking recovery method of train as claimed in claim 19, which is characterized in that
When the voltage of the Traction networks is less than third predetermined threshold value, controls the two-way DC/DC converter and close so that described Battery stops absorbing the braking electric energy, wherein the third predetermined threshold value is less than second preset threshold.
21. the braking recovery method of train as claimed in claim 19, which is characterized in that when the battery absorbs the braking When electric energy, the method also includes:
Detect the electricity of the battery；
If the electricity of the battery is greater than the first power threshold, controls the two-way DC/DC converter and close so that described Battery stops absorbing the braking electric energy.
22. the braking recovery method of train as claimed in claim 19, which is characterized in that absorb the braking in the battery After electric energy, the method also includes:
Detect the voltage of the Traction networks；
When the voltage of the Traction networks is greater than four preset thresholds, control described in the mechanical brake starting cooperation of the train The electric brake of train brakes the train, wherein the 4th preset threshold is greater than second preset threshold.
23. the braking recovery method of train as claimed in claim 18, which is characterized in that according to the voltage control of the Traction networks It makes the energy-accumulating power station and carries out charge or discharge, comprising:
When the voltage of the Traction networks is greater than five preset thresholds, controls the energy-accumulating power station and charge.
24. the braking recovery method of train as claimed in claim 23, which is characterized in that led in the energy-accumulating power station to described After drawing net electric discharge, when the voltage of the Traction networks is greater than six preset thresholds, controls the energy-accumulating power station and stops electric discharge, In, the 6th preset threshold is greater than the 5th preset threshold.
25. the braking recovery method of train as claimed in claim 18, which is characterized in that when the battery is to the Traction networks When being discharged, if the electricity of the battery less than the second power threshold, control the two-way DC/DC converter close with The battery is set to stop electric discharge.
26. the braking recovery method of train as claimed in claim 18, which is characterized in that further include:
Whether the contactor for detecting the train disconnects；
It after detecting that the contactor disconnects, controls the train distributor and closes, and control the two-way DC/DC transformation Device enters discharge mode so that the battery is the train power supply, and controls the train limit Power operation.
27. a kind of control method for train scheduling, which comprises the following steps:
Obtain the electricity for the multiple energy-accumulating power stations being connected on Traction networks；
Discharge power distribution is carried out according to the electricity of the multiple energy-accumulating power station, so that the multiple energy-accumulating power station balanced operation；
It is wherein, described that discharge power distribution is carried out according to the electricity of the multiple energy-accumulating power station, comprising:
When the electricity of the energy-accumulating power station is greater than third power threshold, the energy-accumulating power station is controlled with the first power discharge；
When the electricity of the energy-accumulating power station is less than the third power threshold, controls the energy-accumulating power station and put with the second power Electricity, wherein second power is less than first power；
Wherein, multiple row train is connected on the Traction networks, train described in each column leads braking electric energy feedback to described in braking Draw net, and the battery is controlled according to the voltage of the Traction networks, the braking electric energy of the train is absorbed；
Wherein, train described in each column controls institute according to the voltage of the Traction networks in other train brakings on the Traction networks Battery is stated to absorb the braking electric energy of other trains；
Wherein, when the voltage of the Traction networks is less than seven preset thresholds, by the battery of the train to the Traction networks It discharges, wherein the 7th preset threshold is less than first preset threshold.
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