CN108448602A - Urban track traffic regenerating braking energy energy conserving system - Google Patents
Urban track traffic regenerating braking energy energy conserving system Download PDFInfo
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- CN108448602A CN108448602A CN201810310681.XA CN201810310681A CN108448602A CN 108448602 A CN108448602 A CN 108448602A CN 201810310681 A CN201810310681 A CN 201810310681A CN 108448602 A CN108448602 A CN 108448602A
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Classifications
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention proposes a kind of urban track traffic regenerating braking energy energy conserving system,It connect with power supply system,The power supply system includes main transformer station,Exchange medium voltage network and direct current supply net,The energy conserving system includes that can present unit,Energy-storage units,Main transformer station's information acquisition unit for acquiring main transformer station's parameter information,And to central control unit that regenerating braking energy is allocated,It is described to present unit while be connect with the exchange medium voltage network and the direct current supply net,The energy-storage units are connect with the direct current supply net,The central control unit can present unit with described respectively,The energy-storage units and main transformer station's information acquisition unit network connection,Central control unit of the present invention coordinates control to the absorptance that can present unit and energy-storage units distribution braking energy according to the information of system feedback with each unit in realization system,To control flowing of the regeneration energy in system,Energy conserving system is set to have more preferably energy utilization effect.
Description
Technical field
The invention belongs to Feeding System of Urban Rail Transit field more particularly to a kind of urban track traffic regenerative braking energies
Measure energy conserving system.
Background technology
Subway power consumption accounts for significant portion in metro operation cost.Urban rail transit vehicles generally use " regeneration system
Train momentum is converted into electric energy and feeds back to power supply network, part by the mode of braking of dynamic+resistive braking+mechanical braking ", regenerative braking
The energy of regenerative braking can be absorbed by Adjacent vehicles on circuit.Vehicle absorption cannot be faced by such as regenerating energy, and regeneration energy will be by
Resistance absorption is switched to air damping, and braking energy will be wasted, while can also bring tunnel Wen Sheng and dust pollution
The problems such as.In order to improve train regenerative braking utilization rate, operation power consumption is reduced, is cut operating costs, while reducing air
Pollution is general to recycle Brake Energy by the way of configuring regenerating braking energy retracting device in City Rail Transit System
Amount.The regeneration energy way of recycling of mainstream, which is divided into, at present can present type and accumulation energy type two major classes.
Feedback type regenerated energy recycling device utilizes inverter by regenerating braking energy inversion extra in direct current supply net
Middle-voltage network is exchanged at alternating current, and by the way that transformer feedback can be presented, is applied for other loads under same medium voltage network, reaches section
The purpose of energy, accumulation energy type regenerate energy way of recycling, energy-accumulating medium are passed through switchgear and two-way DC/DC converters and power transformation
Institute's DC bus is connected, and absorption and regeneration braking energy and is released in train traction in train braking, uses super capacitor
Absorption pattern as energy-accumulating medium is using more mature.
Subway train regenerative braking brings great unstability, traditional accumulation energy type and energy to subway DC power-supply system
Feedback type regenerated energy recycling device substitutes braking resistor, is utilized respectively different methods, and absorption supplies caused by regenerative braking
With unbalanced depletion power (energy), DC power-supply system is maintained to stablize.Uneven energy stores are got up to stay in by energy storage mode
In straight-flow system, and mode can be presented, this portion of energy is then fed back into middle pressure ring net, other loads are supplied to by looped network.This
Two ways has its advantage, and there is also insufficient.Device, which can be presented, that capacity is big, space is small.Addition can present dress
Energy in postponing DC power-supply system and exchanging between pressure ring net realizes two-way flow, exacerbates the complexity of system capacity flowing
Property.Since there are still fluctuations for middle pressure ring net load, in practical applications, there are still to higher voltage grade electric system foldback
Electricity problem, simultaneously because middle pressure ring net is with direct current supply net, there are many places to be connected to, can present device work when there is also circulation to ask
Topic.And energy storage mode has interface not to be related with AC network simply, and have the effect for inhibiting net pressure to fall.But due to energy
Amount is absorbed to be restricted by energy-accumulating medium capacity, and equipment volume and cost can be increased substantially by configuring enough stored energy capacitances,
Reduce the economy of equipment.
Traditional energy storage can present device and be all made of the busbar voltage of direct current contact net substantially as the judgement for starting and stopping
Foundation, the busbar voltage of its position of device monitoring can present or energy storage device when busbar voltage is higher than setting threshold voltage
Start, control feedback power or charge-discharge electric power, inhibits the lifting of Traction networks pressure.Energy regeneratings are regenerated when installing more on circuit
When device, each device is successively devoted oneself to work according to voltage differences caused by line impedance, and regenerating braking energy is according to circuit item
The physical parameters such as part, vehicle location are distributed naturally.Even if therefore configuring energy storage simultaneously and device can be presented, by regenerating braking energy
It is natural distribution can only partly make up the shortcomings that single energy absorption pattern is brought, if wanting to reach more perfect application effect needs
Establish more perfect comprehensive energy-saving system.
In consideration of it, it is necessary to provide one kind regenerating braking energy can reasonably be distributed in train braking energy storage and
The urban track traffic regenerating braking energy energy conserving system that device is absorbed can be presented.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide one kind can to regenerate in train braking
Braking energy reasonably distributes to energy storage and can present the urban track traffic regenerating braking energy energy conserving system that device is absorbed.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of urban track traffic regenerating braking energy energy conserving system, the urban track traffic regenerating braking energy are energy saving
System is connect with power supply system, and the power supply system includes main transformer station, exchange medium voltage network and direct current supply net, the master
Electric substation connect with the exchange medium voltage network, and the exchange medium voltage network is connect with the direct current supply net, the city
Rail traffic regenerating braking energy energy conserving system in city's includes that can present unit, energy-storage units, for acquiring main transformer station's parameter information
Main transformer station's information acquisition unit, and to the central control unit that regenerating braking energy is allocated, described to present unit same
When connect with the exchange medium voltage network and the direct current supply net, the energy-storage units are connect with the direct current supply net,
The central control unit can present unit, the energy-storage units and main transformer station's information acquisition unit network with described respectively
It connects to send the parameter information that can present unit, the energy-storage units and main transformer station's information acquisition unit to
The central control unit is in turn allocated regenerating braking energy.
Preferably, the unit that can present includes acquiring mould for acquiring the energy feedforward information that can present cell parameters information
Block and for receive the distribution of central control unit instruct and control it is described can present unit absorption and regeneration braking energy can present control
Molding block, it is described feedforward information acquisition module and described to present control module and the central control unit network connection.
Preferably, the unit that can present further includes that can present to become flow module, the control module that can present becomes with described can present
Flow module network connection with control it is described can feedback become flow module unsteady flow and then control and described can present unit absorption and regeneration braking energy.
Preferably, the unit that can present includes the DC interface being connected with each other successively, can present change flow module, can present transformation
Device and exchange interface, it is described can feedforward information acquisition module respectively with the DC interface, it is described can feedback become flow module, described can present
Transformer and exchange interface network connection are presented with acquiring the DC interface, the energy feedback change flow module, the energy respectively
Transformer and the parameter information for exchanging interface.
Preferably, the energy-storage units include the energy storage information collection mould for acquiring the energy-storage units parameter information
Block and distribution for receiving central control unit instruct and control the energy storage control of the energy-storage units absorption and regeneration braking energy
Molding block, the energy storage information acquisition module and the energy storage control module and the central control unit network connection.
Preferably, the energy-storage units, which include energy storage, becomes flow module, the energy storage control module and the energy storage unsteady flow
Module network connection is to control the energy storage change flow module unsteady flow and then control the energy-storage units absorption and regeneration braking energy.
Preferably, the energy-storage units include the interface module being connected with each other successively, energy storage change flow module and super electricity
Molar group, the interface module are connect with the direct current supply net, and the energy-storage units further include for monitoring the super electricity
The capacitance management module of molar group, the super capacitor module are connect with the capacitance management module network, the energy storage information
Acquisition module becomes flow module with the interface module, the energy storage respectively and the capacitance management module network is connect to adopt respectively
Collect the interface module, the energy storage becomes flow module and the parameter information of the capacitance management module.
Preferably, the change flow module that can present includes inverter and filter, the unit that can present is provided with several institutes
State to present and become flow module, it is described can feedback become flow module between parallel connection to reach required power grade.
Preferably, the energy storage becomes flow module as converter, there are two the energy storage unsteady flows for the energy-storage units setting
Module, two energy storage unsteady flow wired in parallel are to reach required power grade.
Preferably, the DC interface is connect with the direct current supply net, the exchange interface is pressed with described exchange
Power supply network connects.
Compared with prior art, the advantages and positive effects of the present invention are：
1, urban track traffic regenerating braking energy energy conserving system of the invention passes through main transformer station's information acquisition unit, energy
Feedback unit and energy-storage units into central control unit real-time report system main transformer station, the parameters of unit and energy-storage units can be presented
Information so as to the central control unit according to the information of system feedback to unit can be presented and energy-storage units distribute regenerative braking energy
To realize, each unit coordinates control to the absorptance of amount in system, to control flowing of the regeneration energy in system, makes energy saving system
System has more preferably energy utilization effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of urban track traffic regenerating braking energy energy conserving system of the present invention；
Fig. 2 is the structural schematic diagram that the present invention can present unit；
Fig. 3 is the structural schematic diagram of energy-storage units of the present invention；
In above each figure：1, main transformer station；11, main transformer station's information acquisition unit；2, medium voltage network is exchanged；3, direct current
Power supply network；4, central control unit；5, unit can be presented；It 51, can feedforward information acquisition module；52, DC interface；53, unsteady flow can be presented
Module；54, transformer can be presented；55, interface is exchanged；56, control module can be presented；6, energy-storage units；61, energy storage information collection mould
Block；62, interface module；63, energy storage becomes flow module；64, super capacitor module；65, capacitance management module；66, energy storage controls mould
Block.
Specific implementation mode
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case of step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiment
In.
As shown in Figure 1, the present invention proposes a kind of urban track traffic regenerating braking energy energy conserving system, the city rail
Traffic regenerating braking energy energy conserving system is connect with power supply system, and the power supply system includes main transformer station 1, exchange medium-pressure electricity supply
Net 2 and direct current supply net 3, the main transformer station 1 connect with the exchange medium voltage network 2, the exchange medium voltage network 2 with
The direct current supply net 3 connects, and the urban track traffic regenerating braking energy energy conserving system includes that can present unit 5, energy storage list
Member 6, main transformer station's information acquisition unit 11 for acquiring main transformer station's parameter information, and regenerating braking energy is allocated
Central control unit 4, described can present unit 5 while connecting with the exchange medium voltage network 2 and the direct current supply net 3,
The energy-storage units 6 are connect with the direct current supply net 3, the central control unit 4 respectively with the unit 5, described of capable of presenting
Energy-storage units 6 and 11 network connection of main transformer station's information acquisition unit by described to present unit 5, the energy-storage units
6 and the parameter information of main transformer station's information acquisition unit 11 send the central control unit 4, wherein parameter information packet to
Include the information such as the voltage and current of each unit, the central control unit 4 according to the parameter information received by train braking when
The regenerating braking energy of generation, which is reasonably distributed to, described can present unit 5 and the energy-storage units 6.
The urban track traffic regenerating braking energy energy conserving system by main transformer station's information acquisition unit 11, can present it is single
Member 5 and energy-storage units 6 into 4 real-time report system of central control unit main transformer station 1, the ginseng of unit 5 and energy-storage units 6 can be presented
Number information so as to the central control unit 4 according to the information of system feedback to unit 5 and the distribution regeneration system of energy-storage units 6 can be presented
To realize, each unit coordinates control to the assimilation ratio of energy in system, to control stream of the regenerating braking energy in system
It is dynamic, so that energy conserving system is had more preferably energy utilization effect.
As shown in Fig. 2, the unit 5 that can present includes being adopted for acquiring the energy feedforward information that can present 5 parameter information of unit
It collection module 51 and instructs and controls for receiving the distribution of central control unit 4 and described can present 5 absorption and regeneration braking energy of unit
Can present control module 56, the unit 5 that can present includes the DC interface 52 being connected with each other successively, can present change flow module 53, energy
Transformer 54 and exchange interface 55 are presented, the energy feedforward information acquisition module 51 becomes with the DC interface 52, described can present respectively
Flow module 53 described can present transformer 54 and 55 network connection of exchange interface to acquire the DC interface 52 respectively (i.e.
The parameter information of the direct current supply net 3 can be acquired), it is described can feedback become flow module 53, it is described can present transformer 54 and exchange connect
The parameter information of mouth 55 (parameter informations that the exchange medium voltage network 2 can be collected), the energy feedforward information acquisition module
51 and it is described can present control module 56 and 4 network connection of the central control unit, it is described to present control module 56 and the energy
Feedback become 53 network connection of flow module with control it is described can feedback become 53 unsteady flow of flow module and then control and described can present 5 absorption and regeneration of unit
Braking energy.
Further, the change flow module 53 that can present includes three-phase PWM inverter and filter, and the unit 5 that can present is set
Be equipped with it is several it is described can feedback become flow modules 53, it is described can feedback become flow module 53 between parallel connection to reach required power grade in turn
Meet system requirements.
With continued reference to Fig. 1, the DC interface 52 that can present unit 5 is connect with the direct current supply net 3, the friendship
Stream interface 55 connect with the exchange medium voltage network 2 so as to it is described can present unit 5 by the direct current supply net it is extra again
Raw braking energy is absorbed by the DC interface 52, is further become 63 inversion of flow module through the energy storage and described can be presented transformation
The exchange medium voltage network 2 is fed back to by the exchange interface 55 again after 54 transformation of device.
As shown in figure 3, the energy-storage units 6 include being adopted for acquiring the energy storage information of 6 parameter information of the energy-storage units
It collection module 61 and instructs for receiving the distribution of central control unit 4 and controls 6 absorption and regeneration braking energy of the energy-storage units
Energy storage control module 66, the energy-storage units 6 include that the interface module 62 being connected with each other successively, energy storage become flow module 63 and super
Grade electric capacity module 64, the energy-storage units 6 further include the capacitance management module 65 for monitoring the super capacitor module 64, institute
State super capacitor module 64 and 65 network connection of capacitance management module, the energy storage information acquisition module 61 respectively with it is described
Interface module 62 (parameter information that can acquire the direct current supply net 3), the energy storage become flow module 63 and the capacitance tube
Reason 65 network connection of module to acquire the interface module 62, energy storage change flow module 63 and the capacitance management module respectively
65 parameter information, the energy storage information acquisition module 61 and the energy storage control module 66 and 4 net of the central control unit
Network connects, and the energy storage control module 66 becomes 63 network connection of flow module with the energy storage and becomes flow module 63 to control the energy storage
Unsteady flow controls 6 absorption and regeneration braking energy of the energy-storage units in turn.
Further, the energy storage becomes flow module 63 as DC/DC converters, and there are two described for the setting of the energy-storage units 6
Energy storage becomes flow module 63, and two energy storage become 63 parallel connection of flow module to reach required power grade and then to meet system need
It asks.
With continued reference to Fig. 1, the interface module 62 is connect with the direct current supply net 3 so that the energy-storage units 6 are by institute
It states regenerating braking energy extra in direct current supply net 3 to absorb by the interface module 62, further through the super capacitor
Regenerating braking energy is stored and is released when train traction by module 64.
Claims (10)
1. a kind of urban track traffic regenerating braking energy energy conserving system, the energy saving system of urban track traffic regenerating braking energy
System is connect with power supply system, and the power supply system includes main transformer station, exchange medium voltage network and direct current supply net, the main transformer
Electric institute connect with the exchange medium voltage network, and the exchange medium voltage network is connect with the direct current supply net, and feature exists
In：The urban track traffic regenerating braking energy energy conserving system includes that can present unit, energy-storage units, for acquiring main transformer station
Main transformer station's information acquisition unit of parameter information, and to the central control unit that regenerating braking energy is allocated, the energy
Feedback unit is connect with the exchange medium voltage network and the direct current supply net simultaneously, the energy-storage units and the direct current supply
Net connection, the central control unit can present unit, the energy-storage units and main transformer station's information collection with described respectively
Unit networks connect to believe the parameter that can present unit, the energy-storage units and main transformer station's information acquisition unit
Breath sends the central control unit to and then is allocated to regenerating braking energy.
2. urban track traffic regenerating braking energy energy conserving system according to claim 1, it is characterised in that：It is described to present
Unit includes for acquiring the energy feedforward information acquisition module that can present cell parameters information and for receiving central control unit
Distribution instruct and control the control module that can present that can present unit absorption and regeneration braking energy, it is described can feedforward information acquire mould
Block and described it can present control module and the central control unit network connection.
3. urban track traffic regenerating braking energy energy conserving system according to claim 2, it is characterised in that：It is described to present
Unit further includes that can present to become flow module, and the control module that can present is connect with the unsteady flow module network that can present to control the energy
Feedback, which becomes flow module unsteady flow and then controls, described can present unit absorption and regeneration braking energy.
4. urban track traffic regenerating braking energy energy conserving system according to claim 2, it is characterised in that：It is described to present
Unit includes the DC interface being connected with each other successively, can present change flow module, can present transformer and exchange interface, the energy feedforward information
Acquisition module respectively with the DC interface, it is described can feedback become flow module, described can present transformer and described exchange interface network
Connection to acquire the DC interface, the energy feedback change flow module, the ginseng that can present transformer and the exchange interface respectively
Number information.
5. urban track traffic regenerating braking energy energy conserving system according to claim 1, it is characterised in that：The energy storage
Unit includes energy storage information acquisition module for acquiring the energy-storage units parameter information and for receiving central control unit
Distribution instruct and control the energy storage control module of the energy-storage units absorption and regeneration braking energy, the energy storage information collection mould
Block and the energy storage control module and the central control unit network connection.
6. urban track traffic regenerating braking energy energy conserving system according to claim 5, it is characterised in that：The energy storage
Unit includes that energy storage becomes flow module, and the energy storage control module is connect with the energy storage unsteady flow module network to control the energy storage
Become flow module unsteady flow and then controls the energy-storage units absorption and regeneration braking energy.
7. urban track traffic regenerating braking energy energy conserving system according to claim 5, it is characterised in that：The energy storage
Unit includes that the interface module being connected with each other successively, energy storage become flow module and super capacitor module, the interface module with it is described
Direct current supply net connects, and the energy-storage units further include the capacitance management module for monitoring the super capacitor module, described
Super capacitor module is connect with the capacitance management module network, the energy storage information acquisition module respectively with the interface mould
Block, the energy storage become flow module and capacitance management module network connection to acquire the interface module, the energy storage respectively
Become flow module and the parameter information of the capacitance management module.
8. urban track traffic regenerating braking energy energy conserving system according to claim 3 or 4, it is characterised in that：It is described
It includes inverter and filter that energy feedback, which becomes flow module, and the unit that can present is provided with several energy feedback change flow modules, the energy
Parallel connection is to reach required power grade between feedback becomes flow module.
9. the urban track traffic regenerating braking energy energy conserving system described according to claim 6 or 7, it is characterised in that：It is described
Energy storage becomes flow module as converter, and there are two the energy storage to become flow module, two energy storage unsteady flows for the energy-storage units setting
Wired in parallel is to reach required power grade.
10. urban track traffic regenerating braking energy energy conserving system according to claim 4, it is characterised in that：It is described straight
Stream interface is connect with the direct current supply net, and the exchange interface is connect with the exchange medium voltage network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810310681.XA CN108448602A (en) | 2018-03-30 | 2018-03-30 | Urban track traffic regenerating braking energy energy conserving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810310681.XA CN108448602A (en) | 2018-03-30 | 2018-03-30 | Urban track traffic regenerating braking energy energy conserving system |
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| CN108448602A true CN108448602A (en) | 2018-08-24 |
Family
ID=63198912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810310681.XA Pending CN108448602A (en) | 2018-03-30 | 2018-03-30 | Urban track traffic regenerating braking energy energy conserving system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113315109A (en) * | 2021-06-02 | 2021-08-27 | 中车青岛四方车辆研究所有限公司 | Voltage stabilization control method for power substation and power supply section of rail transit section |
| CN114498706A (en) * | 2022-01-28 | 2022-05-13 | 西南交通大学 | Urban rail hybrid regenerative energy utilization system control method based on power distribution |
| CN115117919A (en) * | 2021-11-23 | 2022-09-27 | 西南交通大学 | Control method of urban rail transit hybrid regenerative braking energy utilization system |
| CN117458503A (en) * | 2023-12-26 | 2024-01-26 | 中铁电气化勘测设计研究院有限公司 | Energy interaction method and system for urban rail transit power supply system |
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| CN101376347A (en) * | 2008-09-28 | 2009-03-04 | 东南大学 | Multi-target integrated control energy-saving apparatus of subway electric power supply system |
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| CN113315109A (en) * | 2021-06-02 | 2021-08-27 | 中车青岛四方车辆研究所有限公司 | Voltage stabilization control method for power substation and power supply section of rail transit section |
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| CN115117919B (en) * | 2021-11-23 | 2024-05-24 | 西南交通大学 | Control method of urban rail transit hybrid regenerative braking energy utilization system |
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