CN110021948A - Multifunctional high speed railway regenerating braking energy recycling system based on MMC - Google Patents
Multifunctional high speed railway regenerating braking energy recycling system based on MMC Download PDFInfo
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- CN110021948A CN110021948A CN201910239642.XA CN201910239642A CN110021948A CN 110021948 A CN110021948 A CN 110021948A CN 201910239642 A CN201910239642 A CN 201910239642A CN 110021948 A CN110021948 A CN 110021948A
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- 230000001172 regenerating effect Effects 0.000 title claims abstract description 22
- 238000004064 recycling Methods 0.000 title claims abstract description 11
- 238000004146 energy storage Methods 0.000 claims abstract description 83
- 230000005611 electricity Effects 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- 101150013204 MPS2 gene Proteins 0.000 claims 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008929 regeneration Effects 0.000 abstract description 4
- 238000011069 regeneration method Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
- H02J3/34—Arrangements for transfer of electric power between networks of substantially different frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
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- 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)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The multifunctional high speed railway regenerating braking energy recycling system based on MMC that the present invention provides a kind of, including energy-storage system, inversion system two parts, energy-storage system are connected with inversion system by capacitance module (C).Energy-storage system is three-phase electricity energy storage topological structure, every phase electricity energy storage topological structure is divided into bridge arm and lower bridge arm two parts, and upper bridge arm and lower bridge arm are made of n multilevel converter module (MMC), n electric power electric transformer module (ETM), n battery module (U) and a buffer inductance respectively.Inversion system is three-phase bridge circuit topological structure, and every phase topological structure is divided into bridge arm and lower bridge arm two parts, and upper bridge arm and lower bridge arm are made of n multilevel converter module (MMC) and a buffer inductance respectively.Compared with prior art, connection 27.5kV Traction networks and 10kV power supply through line of the present invention, so that regeneration energy is adequately and reasonably utilized, the power quality of power grid, has the advantages that energy conservation and environmental protection when improving brake.
Description
Technical field
The invention belongs to power electronics fields, are related to a kind of multifunctional high speed railway regenerative braking energy based on MMC
Measure recycling system.
Background technique
Recently as the rapid development of China express railway industry, China has become at present high-speed rail working line in the world
Longest country, installed power and density of dispatching a car also occupy international forefront.High-speed railway is strong with transport capacity, takes and relaxes
The features such as suitable, energy conservation and environmental protection, but it is also one of the important load for being directly accessed electric system few in number.Compared to biography
The straight type electric locomotive of the friendship-of system, high-speed railway have the characteristics that traction load power is big, reliability requirement is high, take the stream time long.
Since high-speed railway has the characteristics that the speed of service is fast, load power is big, generated regenerating braking energy is also quite may be used
It sees.
When bullet train carries out brake, braking energy can be generated, the regenerative braking energy that high-speed railway generates at present
Amount mainly includes two utilization ways: first is that by just absorbing in the bullet train of running under power in same power-feed section；Second is that straight
Connect foldback telegram in reply Force system.But since electric locomotive belongs to single-phase asymmetry load, feed back to the regeneration system of electric system
Energy includes a large amount of harmonic components and negative sequence component, has seriously affected the safe operation of electric system, therefore electric power is public
It takes charge of and punitive charge is used to the electricity of this part foldback power grid, that is, the electricity of foldback power grid is equal to the electricity of consumption
Amount, i.e., so-called " sending positive meter ", this undoubtedly increases the operating cost of high-speed railway.In order to meet growing high-speed iron
Road demand of passenger transport and the O&M cost that rises steadily of reply, for electric railway regenerating braking energy Utilization plan research just
Be of great significance, this also comply with now the world all in the energy-saving and environment-friendly theme mentioned.
Currently, generally regenerating braking energy is got up using storage device stored in train process of regenerative braking, energy storage
When apparatus control system judges that train is in regenerative braking operating condition according to conditions such as contact net voltage, current directions, energy storage turns
The starting of ring change section, regenerating braking energy is stored in energy storage device.And when train work needs to consume in acceleration, climbing etc.
When the operating condition of a large amount of power, energy conversion link is again started up, and the electric energy in energy storage device, which releases, at this time is used.Root
Battery energy storage, superconducting energy storage, flywheel energy storage and super capacitor energy-storage etc. can be divided into according to the difference of energy storage device, since MMC has
The structure of high modularization has common DC bus, and the advantages of remain traditional multi-level converter, therefore is using
When MMC carries out energy storage, not only energy conservation and environmental protection, but also power quality when improving brake, while making MMC submodule capacitor
The control of voltage is more flexible.
However, the applied voltage due to high speed rail system is higher ranked, it is 27.5kV, and it is used as storage in accumulation energy type MMC
Can battery group mainly apply to low pressure grade, be 36V-720V, therefore cannot directly be accessed high speed rail system it
In, although at present in the presence of the structure for completing decompression energy storage by using Industrial Frequency Transformer decompression, this topological structure exists
A series of disadvantages such as cost is high, installation space is big, result in the limitation of application.
In addition, there is the 10kV power supply through line set up along railway in high speed rail system, which penetrates through railway edge
All stations of line are the Special electric line of forces being powered for all kinds of power loads such as Along Railway station, signal and power equipment
Road, the power supply through line of high-speed railway are mostly that single-core cable is laid in roadbed cable trough.Traditional high-speed rail Traction networks route with
There is no electrical connections for 10kV power supply through line, therefore energy extra in two lines road cannot be efficiently used mutually, be resulted in
The limitation of application.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of multifunctional high speed railway regenerating braking energy based on MMC time
Receive the system of utilizing.
The present invention specifically uses following technical scheme:
Multifunctional high speed railway regenerating braking energy recycling system based on MMC, institute's service system includes energy storage system
System, inversion system two parts, energy-storage system are connected with inversion system by capacitance module (C)；The energy-storage system is three-phase electricity
Energy storage topological structure, every phase electricity energy storage topological structure are divided into bridge arm and lower bridge arm two parts, and upper bridge arm and lower bridge arm are respectively by n
A multilevel converter module (MMC), n electric power electric transformer module (ETM), n battery module (U) and one are slow
Inductance composition is rushed, n is the positive integer greater than 1；The second interface (a12) and more than second of first multilevel converter module (MMC1)
The first interface (a21) of level converter module (MMC2) connects, and n multilevel converter module (MMC) is electric according to more than first
Flat current changer module (MMC1) and the connection type of the second multilevel converter module (MMC2) are sequentially connected in series；It is electric more than first
The first interface of the third interface (a13) of flat current changer module (MMC1) and the first electric power electric transformer module (ETM1)
(b11) it connects, the second interface (a12) and the first electric power electric transformer module of the first multilevel converter module (MMC1)
(ETM1) second interface (b12) connection, n multilevel converter module (MMC) and n electric power electric transformer module
(ETM) according to the connection side of the first multilevel converter module (MMC1) and the first electric power electric transformer module (ETM1) between
Formula is successively connected in parallel；The third interface (b13) and the first battery module of first electric power electric transformer module (ETM1)
(U1) anode connection, the 4th interface (b14) and the first battery module of the first electric power electric transformer module (ETM1)
(U1) cathode connection, according to the first electric power electricity between n electric power electric transformer module (ETM) and n battery module (U)
Sub- transformer module (ETM1) and the connection type of the first battery module (U1) are successively connected in parallel.
The inversion system is three-phase bridge circuit topological structure, and every phase topological structure is divided into bridge arm and lower bridge arm two
Point, upper bridge arm and lower bridge arm are made of n multilevel converter module (MMC) and a buffer inductance respectively, and n is greater than 1
Positive integer；The second interface (A12) and the second multilevel converter module of first multilevel converter module (MMC01)
(MMC02) first interface (A21) connection, n multilevel converter module (MMC) is according to the first multilevel converter module
(MMC01) connection type with the second multilevel converter module (MMC02) is sequentially connected in series.
The first multilevel converter module (MMC1) in the energy-storage system is by the first full control switching device (S11), the
Two full controls switching device (S12) and first capacitor (C11) are constituted；Wherein, the first full control switching device (S11) and the second full control
Switching device (S12) series connection；First capacitor (C11) and the first full control switching device (S11) and the second full control switching device (S12)
Series arm it is in parallel.
The first electric power electric transformer module (ETM1) in the energy-storage system by third to the tenth, open by totally 8 full controls
Close device (S13, S14, S15, S16, S17, S18, S19, S20), the first filter inductance (SL11), the second filter inductance
(SL12), the first transformer (T11) and the second capacitor (C12) are constituted；Wherein, third controls switching device (S13) and the 4th entirely
Full control switching device (S14) series connection；5th full control switching device (S15) is connected with the 6th full control switching device (S16)；Third is complete
Control series arm and the 5th full control switching device (S15) and the 6th of switching device (S13) and the 4th full control switching device (S14)
The series arm of full control switching device (S16) is in parallel；7th full control switching device (S17) and eight convergent points control switching device (S18)
Series connection；9th full control switching device (S19) is connected with perfect control switching device (S20)；7th full control switching device (S17) and
The series arm of eight convergent points control switching device (S18) and the 9th full control switching device (S19) and perfect control switching device (S20)
Series arm it is in parallel；Third controls the series connection node of switching device (S13) and the 4th full control switching device (S14), the entirely
One filter inductance (SL11), the primary side (TS1) of the first transformer (T11), the 5th full control switching device (S15) and the 6th full control are opened
The series connection node for closing device (S16) is sequentially connected in series；7th full control switching device (S17) and eight convergent points control switching device
(S18) the secondary side (TS2) of series connection node, the first transformer (T11), the second filter inductance (SL12), the 9th full control are opened
The series connection node for closing device (S19) and perfect control switching device (S20) is sequentially connected in series.
The first multilevel converter module (MMC01) in the inversion system by the first full control switching device (S011),
Second full control switching device (S012) and first capacitor (C011) are constituted；Wherein, the first full control switching device (S011) and the
Two full control switching device (S012) series connection；First capacitor (C011) is switched with the first full control switching device (S011) and the second full control
The series arm of device (S012) is in parallel.
The first multilevel converter module (MMC1) in the energy-storage system be used for when train carries out brake into
Row electric current is controlled by the multi-level rectifying of high-voltage line trackside to low-voltage line trackside, and the first battery in the energy-storage system
It is inverse by more level of low-voltage line trackside to high-voltage line trackside that module (U1) carries out electric current when carrying out electric discharge energy supply with capacitance module (C)
Become control；The first electric power electric transformer module (ETM1) in the energy-storage system is used for will when train carries out brake
High-voltage dc voltage is reduced to low-voltage dc voltage and charges for the first battery module (U1) in the energy-storage system
Energy storage, and be by low-voltage dc voltage raising when the first battery module (U1) in the energy-storage system carries out discharging function
High-voltage dc voltage；Third in the energy-storage system is to the 6th full control switching device (S13, S14, S15, S16) for arranging
It by rectification control by AC rectification is direct current, and the first electric power storage in the energy-storage system when vehicle carries out brake
Pond module (U1) inverteed direct current to alternating current when discharging function by inversion control；First in the energy-storage system
Transformer (T11) is used to reduce alternating voltage when train carries out brake, and the first electric power storage in the energy-storage system
Pond module (U1) carries out boosts alternating voltage when discharging function；In the energy-storage system the 7th to perfect control switching device
(S17, S18, S19, S20) is used to inverte direct current to alternating current when train carries out brake by inversion control, and
It is by AC rectification by rectification control when the first battery module (U1) in the energy-storage system carries out discharging function
Direct current；The first battery module (U1) in the energy-storage system is used to carry out charging storage when train carries out brake
Can, and it is used for discharging function；The first multilevel converter module (MMC01) in the inversion system in train for stopping
It carries out electric current when vehicle is braked to be controlled by the multi-level rectifying of high-voltage line trackside to low-voltage line trackside, and in the energy-storage system
First battery module (U1) and capacitance module (C) carry out when electric discharge energy supply electric current by low-voltage line trackside to high-voltage line trackside
Multi-level inverse conversion control.
Compared with prior art, it advantage of the invention is that eliminating the Industrial Frequency Transformer in other energy storage modes, proposes
By the innovative point of multilevel converter module and electric power electric transformer block combiner, battery module passes through power electronics transformation
Device module is connected to the submodule of multilevel converter module, and regeneration energy is effectively distributed to multilevel converter module
It is stored in submodule；It is higher that the lower general battery module of operational voltage level is directly accessed voltage class by the invention
Traction networks without the use of Industrial Frequency Transformer, significantly reduce the cost and installation space of energy storage device；The invention utilizes storage
The regenerating braking energy deposited can carry out effective compensation to system negative-sequence current；The invention connection 27.5kV Traction networks and 10kV electricity
Power through track can be powered using the energy of regenerative braking storage to 10kV power supply through line, and realize regenerating braking energy has
Effect utilizes.
Detailed description of the invention
Fig. 1 is topology diagram of the invention；
Fig. 2 is the topology diagram of energy-storage system of the present invention；
Fig. 3 is the topology diagram of inversion system of the present invention.
Specific embodiment
Understand for the ease of those of ordinary skill in the art and implement the present invention, with reference to the accompanying drawings and embodiments to this hair
It is bright to be described in further detail, it should be understood that implementation example described herein is merely to illustrate and explain the present invention, not
For limiting the present invention.
Referring to Fig.1, technical solution used by system of the invention is a kind of multifunctional high speed railway regeneration based on MMC
Brake energy recovery utilizes system, and the energy recovery utilizing system includes energy-storage system, inversion system two parts, energy-storage system
It is connected with inversion system by capacitance module (C), comprising: energy-storage system is three-phase electricity energy storage topological structure, and every phase electricity energy storage is opened up
It flutters structure and is divided into bridge arm and lower bridge arm two parts, upper bridge arm and lower bridge arm are respectively by n multilevel converter module (MMC), n
A electric power electric transformer module (ETM), n battery module (U) and a buffer inductance are constituted, and n is just whole greater than 1
Number；The of the second interface (a12) of first multilevel converter module (MMC1) and the second multilevel converter module (MMC2)
One interface (a21) connection, n multilevel converter module (MMC) is according to the first multilevel converter module (MMC1) and second
The connection type of multilevel converter module (MMC2) is sequentially connected in series；The third of first multilevel converter module (MMC1)
Interface (a13) is connect with the first interface (b11) of the first electric power electric transformer module (ETM1), the first multilevel converter mould
The second interface (a12) of block (MMC1) is connect with the second interface (b12) of the first electric power electric transformer module (ETM1), and n
According to the first multilevel converter module between multilevel converter module (MMC) and n electric power electric transformer module (ETM)
(MMC1) connection type with the first electric power electric transformer module (ETM1) is successively connected in parallel；First electric power electric transformer
The third interface (b13) of module (ETM1) is connect with the anode of the first battery module (U1), the first electric power electric transformer mould
4th interface (b14) of block (ETM1) is connect with the cathode of the first battery module (U1), n electric power electric transformer module
(ETM) according to the first electric power electric transformer module (ETM1) and the first battery module between n battery module (U)
(U1) connection type is successively connected in parallel.The inversion system is three-phase bridge circuit topological structure, every phase topological structure point
For upper bridge arm and lower bridge arm two parts, upper bridge arm and lower bridge arm are slow by n multilevel converter module (MMC) and one respectively
Inductance composition is rushed, n is the positive integer greater than 1；The second interface (A12) and second of first multilevel converter module (MMC01)
The first interface (A21) of multilevel converter module (MMC02) connects, and n multilevel converter module (MMC) is according to more than first
Level converter module (MMC01) and the connection type of the second multilevel converter module (MMC02) are sequentially connected in series.
The first multilevel converter module (MMC1) in energy-storage system controls switching device (S11), second entirely by first entirely
It controls switching device (S12) and first capacitor (C11) is constituted；Wherein, the first full control switching device (S11) switchs with the second full control
Device (S12) series connection；The string of first capacitor (C11) and the first full control switching device (S11) and the second full control switching device (S12)
Join branch circuit parallel connection.
The first electric power electric transformer module (ETM1) in energy-storage system is by third to the 10th full control switching device
(S13, S14, S15, S16, S17, S18, S19, S20), the first filter inductance (SL11), the second filter inductance (SL12), first
Transformer (T11) and the second capacitor (C12) are constituted；Wherein, third controls switching device (S13) and the 4th full control switching device entirely
(S14) it connects；5th full control switching device (S15) is connected with the 6th full control switching device (S16)；Third controls switching device entirely
(S13) and the series arm of the 4th full control switching device (S14) and the 5th controls switching device (S15) and the 6th full control derailing switch entirely
The series arm of part (S16) is in parallel；7th full control switching device (S17) is connected with eight convergent points control switching device (S18)；9th is complete
Control switching device (S19) is connected with perfect control switching device (S20)；7th full control switching device (S17) and eight convergent points control are opened
Close the series arm and the series arm of the 9th full control switching device (S19) and perfect control switching device (S20) of device (S18)
It is in parallel；Third controls series connection node, the first filter inductance of switching device (S13) and the 4th full control switching device (S14) entirely
(SL11), the primary side (TS1) of the first transformer (T11), the 5th full control switching device (S15) and the 6th full control switching device
(S16) series connection node is sequentially connected in series；The string of 7th full control switching device (S17) and eight convergent points control switching device (S18)
Join link node, the secondary side (TS2) of the first transformer (T11), the second filter inductance (SL12), the 9th full control switching device
(S19) it is sequentially connected in series with the series connection node of perfect control switching device (S20).
The first multilevel converter module (MMC01) in inversion system is by the first full control switching device (S011), second
Full control switching device (S012) and first capacitor (C011) are constituted；Wherein, first switching device (S011) and second is controlled entirely entirely
Control switching device (S012) series connection；First capacitor (C011) and the first full control switching device (S011) and the second full control switching device
(S012) series arm is in parallel.
The first multilevel converter module (MMC1) in energy-storage system is used to carry out electricity when train carries out brake
Stream is controlled by the multi-level rectifying of high-voltage line trackside to low-voltage line trackside, and the first battery module in the energy-storage system
(U1) carry out carrying out electric current with capacitance module (C) when electric discharge energy supply by the multi-level inverse conversion control of low-voltage line trackside to high-voltage line trackside
System；The first electric power electric transformer module (ETM1) in the energy-storage system is used for high pressure when train carries out brake
DC voltage is reduced to low-voltage dc voltage and carries out charging energy-storing for the first battery module (U1) in the energy-storage system,
And the first battery module (U1) in the energy-storage system increase low-voltage dc voltage for high pressure when discharging function
DC voltage；Third in the energy-storage system to the 6th full control switching device (S13, S14, S15, S16) be used for train into
It by rectification control by AC rectification is direct current, and the first battery mould in the energy-storage system when row brake
Block (U1) inverteed direct current to alternating current when discharging function by inversion control；The first transformation in the energy-storage system
Device (T11) is used to reduce alternating voltage when train carries out brake, and the first battery mould in the energy-storage system
Block (U1) carries out boosts alternating voltage when discharging function；In the energy-storage system the 7th to perfect control switching device (S17,
S18, S19, S20) for being inverteed direct current to alternating current when train carries out brake by inversion control, and described
Being controlled by rectification by AC rectification when the first battery module (U1) in energy-storage system carries out discharging function is direct current；
The first battery module (U1) in the energy-storage system is used to carry out charging energy-storing when train carries out brake, and is used for
Discharging function；The first multilevel converter module (MMC01) in the inversion system is used for when train carries out brake
It carries out electric current to be controlled by the multi-level rectifying of high-voltage line trackside to low-voltage line trackside, and the first electric power storage in the energy-storage system
Pond module (U1) and capacitance module (C) carry out when electric discharge energy supply electric current by more level of low-voltage line trackside to high-voltage line trackside
Inversion control.
In the present embodiment, the upper bridge arm in energy-storage system and lower bridge arm are respectively by n=7 multilevel converter module
It forms, the upper bridge arm and lower bridge arm in inversion system are made of n=3 multilevel converter module respectively, multilevel converter
Module selects FD800R45KL3-K_B5 module；The third to the 10th full control switching device (S13, S14, S15,
S16, S17, S18, S19, S20) select FD800R45KL3-K_B5 module.
Three-phase when train carries out brake, in the energy-storage system of three-phase alternating current high voltage side current through the invention
Multilevel converter module (MMC) carries out multi-level rectifying control, and electric power electric transformer module (ETM) through the invention will
High-pressure side direct current is reduced to low-pressure side direct current, and battery module (U) and capacitance module (C) through the invention is filled
Electric energy storage.Meanwhile the three-phase multilevel converter module (MMC) in inversion system through the invention carries out multi-level rectifying control
System, battery module (U) and capacitance module (C) through the invention carry out charging energy-storing；In battery module of the invention
(U) when and capacitance module (C) carries out discharging function, electric power electric transformer module (ETM) through the invention is by low-pressure side
It is high-pressure side direct current that direct current, which increases, and the more level of three-phase multilevel converter module (MMC) progress through the invention are inverse
Become control, finally intersects the electrical energy transportation that battery module (U) of the invention and capacitance module (C) store to 27.5kV tri-
Galvanic electricity high-pressure side.Meanwhile the more level of three-phase multilevel converter module (MMC) progress in inversion system through the invention are inverse
Become control, the electrical energy transportation for finally storing battery module (U) of the invention and capacitance module (C) to 10kV three-phase alternating current
Electric high-pressure side.
Although the first multilevel converter module (MMC1, MMC01), the first full control switching device is used more herein
(S11, S011), the second full control switching device (S12, S012), first capacitor (C11, C011) composition, the first power electronics transformation
Device module (ETM1), third to the 10th full control switching device (S13, S14, S15, S16, S17, S18, S19, S20), first
Filter inductance (SL11), the second filter inductance (SL12), the first transformer (T11) third to the 10th full control switching device
(S13, S14, S15, S16, S17, S18, S19, S20), the first filter inductance (SL11), the second filter inductance (SL12), first
The arts such as transformer (T11) and the second capacitor of the second capacitor (C12) (C12), the first battery module (U1), capacitance module (C)
Language, but a possibility that be not precluded using other terms.It is of the invention the use of these items is only for more easily describing
Essence, being construed as any additional limitation is disagreed with spirit of that invention.
It should be understood that the above-mentioned description for preferred embodiment is more detailed, can not therefore be considered to this
The limitation of invention patent protection range, those skilled in the art under the inspiration of the present invention, are not departing from power of the present invention
Benefit requires to make replacement or deformation under protected ambit, fall within the scope of protection of the present invention, this hair
It is bright range is claimed to be determined by the appended claims.
Claims (6)
1. the multifunctional high speed railway regenerating braking energy recycling system based on MMC, which is characterized in that institute's service system packet
Energy-storage system, inversion system two parts are included, energy-storage system is connected with inversion system by capacitance module (C)；The energy-storage system
For three-phase electricity energy storage topological structure, every phase electricity energy storage topological structure is divided into bridge arm and lower bridge arm two parts, upper bridge arm and lower bridge
Arm is respectively by n multilevel converter module (MMC), n electric power electric transformer module (ETM), n battery module (U)
And a buffer inductance is constituted, n is the positive integer greater than 1；The second interface of first multilevel converter module (MMC1)
(a12) it is connect with the first interface (a21) of the second multilevel converter module (MMC2), n multilevel converter module (MMC)
It is sequentially connected in series according to the connection type of the first multilevel converter module (MMC1) and the second multilevel converter module (MMC2)
Connection；The third interface (a13) of first multilevel converter module (MMC1) and the first electric power electric transformer module (ETM1)
First interface (b11) connection, the second interface (a12) of the first multilevel converter module (MMC1) and the first power electronics become
The second interface (b12) of depressor module (ETM1) connects, n multilevel converter module (MMC) and n electric power electric transformer
According to the company of the first multilevel converter module (MMC1) and the first electric power electric transformer module (ETM1) between module (ETM)
Mode is connect successively to be connected in parallel；The third interface (b13) and the first battery mould of first electric power electric transformer module (ETM1)
The anode connection of block (U1), the 4th interface (b14) and the first battery module of the first electric power electric transformer module (ETM1)
(U1) cathode connection, according to the first electric power electricity between n electric power electric transformer module (ETM) and n battery module (U)
Sub- transformer module (ETM1) and the connection type of the first battery module (U1) are successively connected in parallel.
2. the multifunctional high speed railway regenerating braking energy recycling system based on MMC according to claim 1, feature
It is, the inversion system is three-phase bridge circuit topological structure, and every phase topological structure is divided into bridge arm and lower bridge arm two parts,
Upper bridge arm and lower bridge arm are made of n multilevel converter module (MMC) and a buffer inductance respectively, and n is just greater than 1
Integer；The second interface (A12) of first multilevel converter module (MMC01) and the second multilevel converter module (MMC02)
First interface (A21) connection, n multilevel converter module (MMC) according to the first multilevel converter module (MMC01) and
The connection type of second multilevel converter module (MMC02) is sequentially connected in series.
3. the multifunctional high speed railway regenerating braking energy recycling system based on MMC according to claim 2, feature
It is, the first multilevel converter module (MMC1) in the energy-storage system controls switching device (S11), second entirely by first entirely
It controls switching device (S12) and first capacitor (C11) is constituted；Wherein, the first full control switching device (S11) switchs with the second full control
Device (S12) series connection；The string of first capacitor (C11) and the first full control switching device (S11) and the second full control switching device (S12)
Join branch circuit parallel connection.
4. the multifunctional high speed railway regenerating braking energy recycling system based on MMC according to claim 3, feature
It is, by third to the tenth, totally 8 full controls switch the first electric power electric transformer module (ETM1) in the energy-storage system
Device (S13, S14, S15, S16, S17, S18, S19, S20), the first filter inductance (SL11), the second filter inductance (SL12),
First transformer (T11) and the second capacitor (C12) are constituted；Wherein, third is controlled switching device (S13) entirely and is switched with the 4th full control
Device (S14) series connection；5th full control switching device (S15) is connected with the 6th full control switching device (S16)；Third controls derailing switch entirely
The series arm of part (S13) and the 4th full control switching device (S14) is switched with the 5th full control switching device (S15) and the 6th full control
The series arm of device (S16) is in parallel；7th full control switching device (S17) is connected with eight convergent points control switching device (S18)；9th
Full control switching device (S19) is connected with perfect control switching device (S20)；7th full control switching device (S17) and eight convergent points control
The branch of connecting of the series arm of switching device (S18) and the 9th full control switching device (S19) and perfect control switching device (S20)
Road is in parallel；Third controls the series connection node of switching device (S13) and the 4th full control switching device (S14), the first filtered electrical entirely
Feel (SL11), the primary side (TS1) of the first transformer (T11), the 5th full control switching device (S15) and the 6th full control switching device
(S16) series connection node is sequentially connected in series；The string of 7th full control switching device (S17) and eight convergent points control switching device (S18)
Join link node, the secondary side (TS2) of the first transformer (T11), the second filter inductance (SL12), the 9th full control switching device
(S19) it is sequentially connected in series with the series connection node of perfect control switching device (S20).
5. the multifunctional high speed railway regenerating braking energy recycling system based on MMC according to claim 4, feature
It is, the first multilevel converter module (MMC01) in the inversion system is by the first full control switching device (S011), second
Full control switching device (S012) and first capacitor (C011) are constituted；Wherein, first switching device (S011) and second is controlled entirely entirely
Control switching device (S012) series connection；First capacitor (C011) and the first full control switching device (S011) and the second full control switching device
(S012) series arm is in parallel.
6. the multifunctional high speed railway regenerating braking energy recycling system based on MMC according to claim 5, feature
It is, the first multilevel converter module (MMC1) in the energy-storage system is used to carry out electricity when train carries out brake
Stream is controlled by the multi-level rectifying of high-voltage line trackside to low-voltage line trackside, and the first battery module in the energy-storage system
(U1) carry out carrying out electric current with capacitance module (C) when electric discharge energy supply by the multi-level inverse conversion control of low-voltage line trackside to high-voltage line trackside
System；The first electric power electric transformer module (ETM1) in the energy-storage system is used for high pressure when train carries out brake
DC voltage is reduced to low-voltage dc voltage and carries out charging energy-storing for the first battery module (U1) in the energy-storage system,
And the first battery module (U1) in the energy-storage system increase low-voltage dc voltage for high pressure when discharging function
DC voltage；Third in the energy-storage system to the 6th full control switching device (S13, S14, S15, S16) be used for train into
It by rectification control by AC rectification is direct current, and the first battery mould in the energy-storage system when row brake
Block (U1) inverteed direct current to alternating current when discharging function by inversion control；The first transformation in the energy-storage system
Device (T11) is used to reduce alternating voltage when train carries out brake, and the first battery mould in the energy-storage system
Block (U1) carries out boosts alternating voltage when discharging function；In the energy-storage system the 7th to perfect control switching device (S17,
S18, S19, S20) for being inverteed direct current to alternating current when train carries out brake by inversion control, and described
Being controlled by rectification by AC rectification when the first battery module (U1) in energy-storage system carries out discharging function is direct current；
The first battery module (U1) in the energy-storage system is used to carry out charging energy-storing when train carries out brake, and is used for
Discharging function；The first multilevel converter module (MMC01) in the inversion system is used for when train carries out brake
It carries out electric current to be controlled by the multi-level rectifying of high-voltage line trackside to low-voltage line trackside, and the first electric power storage in the energy-storage system
Pond module (U1) and capacitance module (C) carry out when electric discharge energy supply electric current by more level of low-voltage line trackside to high-voltage line trackside
Inversion control.
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| CN108599207A (en) * | 2018-01-15 | 2018-09-28 | 武汉大学 | A kind of energy storage topological structure applying to high speed rail system |
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| CN102055347A (en) * | 2010-07-22 | 2011-05-11 | 荣信电力电子股份有限公司 | Modular multilevel converter (MMC)-based transformer-free four-quadrant high-voltage variable frequency power supply topological structure |
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