CN109217330A - A kind of electric railway cophase supply transformer substation system - Google Patents
A kind of electric railway cophase supply transformer substation system Download PDFInfo
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- CN109217330A CN109217330A CN201811066548.0A CN201811066548A CN109217330A CN 109217330 A CN109217330 A CN 109217330A CN 201811066548 A CN201811066548 A CN 201811066548A CN 109217330 A CN109217330 A CN 109217330A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000000819 phase cycle Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000009466 transformation Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005191 phase separation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000035515 penetration Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
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- 238000007363 ring formation reaction Methods 0.000 description 1
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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
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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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention discloses a kind of electric railway cophase supply transformer substation systems, are related to attached wires of AC electrified railway power supply technique field.The cophase supply transformer substation system includes n traction substation, single-phase high voltage power transmission line and Traction networks, wherein, first traction substation includes three-phase high-voltage bus, the first main transformer connecting with the three-phase high-voltage bus and the negative sequence compensation device connecting with the three-phase high-voltage bus；Second traction substation is connect with the single-phase high voltage power transmission line and Traction networks respectively to n-th of traction substation.The negative sequence compensation device is installed in first traction substation, and including three-phase compensator transformer, three-phase reactive power compensator and measurement and control unit；The negative sequence compensation device generates negative phase-sequence trend by its three-phase reactive power compensator, does not change the effective power flow of whole system；The advantage big using high voltage transmission line transmission power simultaneously, conveying distance is long greatly prolongs the electrified railway power supply mileage of no phase separation perforation.
Description
Technical field
The present invention relates to attached wires of AC electrified railway power supply technique field more particularly to high pressures, long range cophase supply power transformation skill
Art.
Background technique
Electric railway generallys use the single phase industrial frequency AC system powered by municipal power supply system, to keep single-phase traction negative
Equilibrium assignmen, electric railway often use the side of rotation phase sequence, split-phase switched-mode power supply to lotus as far as possible in three-phase electrical power system
Case.It is isolated between adjacent service area at split-phase subregion with neutral section insulator, forms electric split-phase, abbreviation split-phase.Electric split-phase link
It is link most weak in entire tractive power supply system, train excessively mutually becomes high-speed railway or even entire electric railway is led
Draw the bottleneck of power supply.
Theory and practice shows to use single-phase traction transformer or combined type cophase supply technology can be in traction substation
The electric split-phase for cancelling its exit uses bilateral connection technology that can cancel the electric split-phase at this, to eliminate confession in subregion
Storage battery neck improves railway power supply ability and transport capacity.Wherein, traction substation is same using single-phase traction transformer or combined type
The technology that phase power supply technique cancels the electric split-phase in its exit has been succeeded application, and effect is very good, and subregion it is bilateral
Connection is similar to the Electromagnetic coupling of power grid, restriction of the application by grid conditions, such as power grid transmission line and is formed with Traction networks
Parallel relationship and voltage class is closer to, it may appear that the larger problem of penetration (euqalizing current) in Traction networks, in addition
Lack relevant criterion, influences the implementation of two-side feeding (cyclization), but there is a kind of power supply structure not generate penetration, here it is spokes
Formula structure power supply mode is penetrated, i.e. the sectionalized busbar of the same substation of power grid is given multiple traction substations to be powered respectively, changed
Yan Zhi forms tree-like power supply in network graph theory: the substation is tree root, and each traction substation is leaf.At this point, becoming in traction
The used single-phase traction transformer of electricity or combined type cophase supply technology cancel the electric split-phase in its exit, use in subregion double
Side connection technology and cancel the electric split-phase at this, penetration would not be caused in Traction networks, to create power grid and railway
The situation of two-win.
Here, we claim the same substation of power grid to become with radiant type structure to these tractions that multiple traction substations are powered
Traction substation group carried out by electricity.Traction substation group carrying out through cophase supply, optimizing is configured so that traction power transformation
Institute's group's primary side is powered by the sectionalized busbar of same substation, and most 1 traction substation are negative sequence compensation electric substation in group,
Remaining is single-phase electric substation, and the voltage of all single-phase traction buses is separate identical in group.
For this purpose, inventors herein proposing " a kind of the negative phase-sequence centralized compensation control system and its control method of traction substation group
(application number: 2018106212100) ", core is the negative sequence compensation device ADA of negative sequence compensation electric substation by traction substation group
The active power regulation of Zhong Fei negative sequence compensation electric substation comes, and realizes negative phase-sequence by changing the effective power flow of traction substation group
Centralized compensation, keep negative phase-sequence up to standard.The study found that when traction substation group scale is bigger, the rule for the effective power flow for needing to change
Mould is bigger, and electrical distance is longer, and technical difficulty is bigger, and the economic indicator of network loss is poorer, or even can not achieve；Together
When, since the same substation of power grid is powered with radiant type structure to multiple traction substations, it will receive radiant type high voltage transmission line
The limit value of length and investment also allows for using bilateral connection in subregion so that the quantity of traction substation group is restricted
Technology and the electric railway mileage for cancelling the electric split-phase at this is restricted.
The present invention can greatly prolong the electrified railway power supply mileage of no phase separation perforation, and not change traction substation group
Effective power flow, the technical issues of negative phase-sequence centralized compensation of traction substation group is solved by reactive power flow control, make negative phase-sequence
Improvement is up to state standards.
Summary of the invention
It is an object of the present invention to provide a kind of electric railway cophase supply transformer substation systems, can not only efficiently solve no phase separation and pass through
The short technical problem of logical electrified railway power supply mileage, moreover it is possible to which the negative phase-sequence for efficiently solving the generation of cophase supply transformer substation system is concentrated
The technical issues of carrying out real-time compensation.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is specific as follows:
A kind of electric railway cophase supply transformer substation system, the cophase supply transformer substation system include the first traction substation, the
Two traction substations ... and n-th of traction substation and single-phase high voltage power transmission line and Traction networks connected to it.Wherein,
First traction substation include three-phase high-voltage bus, the first main transformer being connect with the three-phase high-voltage bus and with institute
State the negative sequence compensation device of three-phase high-voltage bus connection；Second traction substation ... and n-th of traction substation
It is connect respectively with the single-phase high voltage power transmission line and Traction networks, n >=2.
Preferably, the negative sequence compensation device is installed in first traction substation and compensates transformation including three-phase
Device, the three-phase reactive power compensator being connect with the three-phase compensator transformer and the survey being connect with three-phase reactive power compensator
Control unit.
It is further preferred that the measurement and control unit includes voltage transformer, the first current transformer and the second Current Mutual Inductance
Device and controller, the voltage transformer primary side are connected in three-phase high-voltage bus between A phase and B phase, and first electric current is mutual
Sensor primary side is serially connected with the main transformer primary side A phase feeder line of first traction substation, the second current transformer primary side
Three-phase high-voltage bus is serially connected with to the A phase feeder line of single-phase high voltage power transmission line.
Preferably, the input terminal of the controller is mutual with voltage transformer, the first current transformer and the second electric current respectively
The measurement end of sensor connects, and the output end of the controller is connect with the control terminal of the three-phase reactive power compensator.
Preferably, the second main transformer pressure of the first main transformer of first traction substation, the second traction substation
Device ... and the n-th main transformer of the n-th traction substation is all made of single-phase wiring.
It is further preferred that described first main transformer primary side one end passes through the first current transformer and three-phase high-voltage bus
A phase concatenate, the B phase of the other end and three-phase high-voltage bus；Described first main transformer secondary side one end is connect with Traction networks,
Other end ground connection.
It is further preferred that primary side one end of second main transformer and the n-th main transformer respectively with it is described single-phase
The A phase feeder line of high voltage transmission line connects, and the other end is connect with the B phase feeder line of the single-phase high voltage power transmission line respectively；Described
Secondary side one end of two main transformers and the n-th main transformer is connect with Traction networks, other end ground connection.
Preferably, the three-phase compensator transformer primary side of the negative sequence compensation device and three-phase high-voltage bus A phase, B phase and C phase
Connection, the three-phase compensator transformer secondary side connect three-phase reactive power compensator.
Compared with prior art, the beneficial effects of the present invention are:
One, can implement through cophase supply in a wider context, maximum magnitude cancels electric split-phase, and not power grid not
Generate penetration.
Two, a traction substation being set in cophase supply transformer substation system and carrying out negative phase-sequence centralized compensation, system can be made whole
Structure is most simplified.
Three, required three-phase reactive power compensator only generates negative sequence component, does not generate positive-sequence component, i.e., is not occupying power grid just
Sequence capacity, matched three-phase compensator transformer only transmit negative sequence power, do not transmit positive-sequence power, have and exempt from electrical capacity charge
Technical advantage, meanwhile, do not change the effective power flow of traction substation Traction networks, do not increase additional Traction networks power loss.
Four, Traction networks are implemented to be more advantageous to the sharp by tractor-trailer train of regeneration train electric energy with connecting in a wider context
With reduction greatly increases energy-saving effect from the electricity consumption of electric system.
Five, reactive power compensator operating condition is reversible, still can be to power grid when cophase supply transformer substation system is in equivalent regeneration regime
Send out electric energy up to standard.
Six, superior performance, technologically advanced, method is reliable, easy to implement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the transformer substation system of electric railway cophase supply described in the embodiment of the present invention.
Fig. 2 is the structural framing figure of measurement and control unit described in the embodiment of the present invention.
Fig. 3 is the input of controller described in the embodiment of the present invention, output relation schematic diagram.
Specific embodiment
In order to be best understood from creation thought of the invention, working principle of the present invention are as follows: hand over the straight power factor for handing over train very
It is high, it is believed that 1, and the power factor of each traction substation is identical, with three-phase high-voltage bus PCC (negative phase-sequence examination point), at PCC
The total negative-sequence current generated can be calculated with scalar algebraical sum, and total negative-sequence current or power can be in a traction substations
By installation negative sequence compensation system carry out centralized compensation, national standard is reached after compensation, wherein negative sequence compensation by its three-phase without
Reactive power compensation installations generate negative phase-sequence trend, do not change the effective power flow of cophase supply transformer substation system, while conveying using high voltage transmission line
The advantage that power is big, conveying distance is long, greatly prolongs the electrified railway power supply mileage of no phase separation perforation.
The invention will be further described with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the cophase supply becomes the embodiment of the invention provides a kind of electric railway cophase supply transformer substation system
Electric system includes the first traction substation SS1, the second traction substation SS2... and n-th of traction substation SSn, it is single-phase
High voltage transmission line HL and Traction networks 0CS, n >=2；First traction substation (the SS1) include three-phase high-voltage bus (HB),
The first main transformer (TT being connect with the three-phase high-voltage bus (HB)1) and connect with the three-phase high-voltage bus (HB) negative
Sequence compensation device (NCS)；The second traction substation SS2... and n-th of traction substation SSnRespectively with it is described
Single-phase high voltage power transmission line HL is connected with Traction networks 0CS.Under direct feeding system, institute's spacing of adjacent traction substation generally exists
50km or so.
In embodiments of the present invention, the first traction substation SS1The first main transformer TT1, the second traction substation
SS2The second main transformer TT2... and the n-th traction substation SSnThe n-th main transformer TTnIt is all made of single-phase wiring.Institute
State the first main transformer TT1Primary side one end concatenates the first Current Transmit1It is connected later with the A of three-phase high-voltage bus HB,
The other end is connected with the B of three-phase high-voltage bus HB；The first main transformer TT1Secondary side one end is connect with Traction networks OCS,
Other end ground connection.The second main transformer TT2... and the n-th main transformer TTnPrimary side one end respectively with it is described single-phase
The A phase feeder line of high voltage transmission line HL connects, and the other end is connect with the B phase feeder line of the single-phase high voltage power transmission line respectively；It is described
Secondary side one end of second main transformer and the n-th main transformer is connect with Traction networks, other end ground connection.
The three-phase compensator transformer primary side of the negative sequence compensation device is connected with three-phase high-voltage bus A phase, B phase and C, institute
State three-phase compensator transformer secondary side connection three-phase reactive power compensator.The three-phase reactive power compensator SVG only generates negative phase-sequence point
Amount, does not generate positive-sequence component；The three-phase compensator transformer MT only transmits negative sequence power, does not transmit positive-sequence power.
As shown in connection with fig. 2, in embodiments of the present invention, the negative sequence compensation device NCS is installed on first traction and becomes
Electric institute SS1It is interior and including three-phase compensator transformer MT, the three-phase reactive power compensator being connect with the three-phase compensator transformer MT
SVG and measurement and control unit MC with three-phase reactive power compensator SVG.The measurement and control unit MC includes voltage transformer pt, the first electricity
Current transformer CT1With the second Current Transmit2With controller CD, the voltage transformer pt primary side is connected to three-phase high-voltage mother
Between the A phase and B phase of line HB, first Current Transmit1Primary side is serially connected with the first traction substation SS1First
Main transformer TT1Primary side A phase feeder line, second Current Transmit2Primary side is serially connected with three-phase high-voltage bus HB to single-phase high voltage
The A phase feeder line of power transmission line HL.
In conjunction with shown in Fig. 3, in embodiments of the present invention, the input terminal of the controller CD respectively with voltage transformer
PT, the first Current Transmit1With the second Current Transmit2Measurement end connection, the output end of the controller CD with it is described
The control terminal of three-phase reactive power compensator SVG connects.
In the embodiment of the present invention, the main transformer TT of the first traction substation1Primary side, single-phase high voltage power transmission line HL, voltage
Mutual inductor PT can be also connected to simultaneously in the B phase and C phase of three-phase high-voltage bus HB, or is connected to three-phase high-voltage bus HB simultaneously
C phase and A phase on.
In conjunction with shown in Fig. 1, Fig. 2 and Fig. 3, if the negative phase-sequence of three-phase high-voltage bus HB allows capacity to be Sd, Traction networks load function
Rate factor=1, through voltage transformer pt and Current Transmit1The instantaneous active power of measurement is s1(t), voltage transformer pt
And Current Transmit2The instantaneous active power of synchro measure is s2(t), the instantaneous active power s of t is carved in timing1(t) and it is instantaneous
Active power s2(t) summation is s (t), then controller CD controls the instantaneous negative of three-phase reactive power compensator SVG moment t output
Sequence power sC(t) opposite in phase of phase and s (t), and sC(t) size are as follows: sC(t)=s (t)-Sd, wherein work as sC(t) <
When 0, s is enabledC(t)=0 three-phase reactive power compensator SVG stoppage in transit, is represented.
In conclusion the embodiment of the present invention carries out negative phase-sequence by setting a traction substation in cophase supply transformer substation system
Centralized compensation can make overall system architecture most simplified, and required three-phase reactive power compensator only generates negative sequence component, not generate positive sequence
Component, i.e., do not occupy the positive sequence capacity of power grid, and matched three-phase compensator transformer only transmits negative sequence power, do not transmit positive sequence
Power has the technical advantage for exempting from electrical capacity charge, meanwhile, do not change the effective power flow of traction substation Traction networks, does not increase
Additional Traction networks power loss.Traction networks implement the quilt that regeneration train electric energy is more advantageous to connecting in a wider context
Tractor-trailer train utilizes, and reduces the electricity consumption from electric system, greatly increases energy-saving effect.Reactive power compensator operating condition is reversible, when same
When being mutually in equivalent regeneration regime for transformer substation system, electric energy up to standard can be still sent out to power grid.It is superior performance, technologically advanced, square
Method is reliable, easy to implement.
Claims (8)
1. a kind of electric railway cophase supply transformer substation system, including the first traction substation (SS1), the second traction substation (SS2)
And n-th of traction substation (SSn) and single-phase high voltage power transmission line (HL) and Traction networks connected to it (0CS), feature exists
In: the first traction substation (SS1) include three-phase high-voltage bus (HB), connect with the three-phase high-voltage bus (HB)
One main transformer (TT1) and the negative sequence compensation device (NCS) that is connect with the three-phase high-voltage bus (HB)；Second traction becomes
Electric institute (SS2) and n-th of traction substation (SSn) connect respectively with the single-phase high voltage power transmission line (HL) and Traction networks (0CS)
It connects, n >=2.
2. electric railway cophase supply transformer substation system according to claim 1, it is characterised in that: the negative sequence compensation device
(NCS) it is installed on the first traction substation (SS1) in, and compensated including three-phase compensator transformer (MT), with the three-phase
The three-phase reactive power compensator (SVG) of transformer (MT) connection and the observing and controlling being connect with three-phase reactive power compensator (SVG)
Unit (MC).
3. electric railway cophase supply transformer substation system according to claim 2, it is characterised in that: the measurement and control unit (MC)
Including voltage transformer (PT), the first current transformer (CT1), the second Current Transmit2With controller (CD), the voltage
Mutual inductor (PT) primary side is connected in three-phase high-voltage bus (HB) between A phase and B phase, the first current transformer (CT1) former
While being serially connected with the first traction substation (SS1) main transformer (TT1) primary side A phase feeder line, second current transformer
(CT2) primary side is serially connected with three-phase high-voltage bus (HB) to the A phase feeder line of single-phase high voltage power transmission line (HL).
4. a kind of electric railway cophase supply transformer substation system according to claim 3, it is characterised in that: the controller
(CD) input terminal respectively with voltage transformer (PT), the first current transformer (CT1) and the second current transformer (CT2) survey
End connection is measured, the output end of the controller (CD) is connect with the control terminal of the three-phase reactive power compensator (SVG).
5. electric railway cophase supply transformer substation system according to claim 1, which is characterized in that the first traction power transformation
Institute (SS1) the first main transformer (TT1), the second traction substation (SS2) the second main transformer (TT2) and the n-th traction
Electric substation (SSn) the n-th main transformer (TTn) it is all made of single-phase wiring.
6. a kind of electric railway cophase supply transformer substation system according to claim 5, which is characterized in that first main transformer
Depressor (TT1) primary side one end pass through the first current transformer (CT1) concatenated with the A phase of three-phase high-voltage bus (HB), the other end with
The B phase of three-phase high-voltage bus (HB)；First main transformer (the TT1) secondary side one end connect with Traction networks (OCS), the other end
Ground connection.
7. a kind of electric railway cophase supply transformer substation system according to claim 5, which is characterized in that second main transformer
Depressor (TT2) and the n-th main transformer (TTn) primary side one end respectively with the A phase feeder line of the single-phase high voltage power transmission line (HL) connect
It connects, the other end is connect with the B phase feeder line of the single-phase high voltage power transmission line (HL) respectively；Second main transformer (the TT2) with
And the n-th main transformer (TTn) secondary side one end connect with Traction networks (OCS), the other end ground connection.
8. a kind of according to claim 1, electric railway cophase supply transformer substation system described in 2, which is characterized in that the negative phase-sequence is mended
Three-phase compensator transformer (MT) primary side for repaying device (NCS) is connected with three-phase high-voltage bus (HB) A phase, B phase and C, and described three
Phase compensator transformer (MT) secondary side connects three-phase reactive power compensator (SVG).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811066548.0A CN109217330B (en) | 2018-09-12 | 2018-09-12 | In-phase power supply and transformation system of electrified railway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811066548.0A CN109217330B (en) | 2018-09-12 | 2018-09-12 | In-phase power supply and transformation system of electrified railway |
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| CN109217330B CN109217330B (en) | 2023-10-27 |
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| CN109687484A (en) * | 2019-01-22 | 2019-04-26 | 西南交通大学 | A kind of electric railway external electrical network access scheme optimum design method |
| CN114336643A (en) * | 2022-03-17 | 2022-04-12 | 西南交通大学 | System for utilizing passing power of bilateral power supply traction network of regional station and control method |
| CN114336642A (en) * | 2022-03-17 | 2022-04-12 | 西南交通大学 | Bilateral power supply ride-through power utilization system of traction network and control method |
| CN114336639A (en) * | 2022-03-17 | 2022-04-12 | 西南交通大学 | Intelligent traction substation and power flow control method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687484A (en) * | 2019-01-22 | 2019-04-26 | 西南交通大学 | A kind of electric railway external electrical network access scheme optimum design method |
| CN114336643A (en) * | 2022-03-17 | 2022-04-12 | 西南交通大学 | System for utilizing passing power of bilateral power supply traction network of regional station and control method |
| CN114336642A (en) * | 2022-03-17 | 2022-04-12 | 西南交通大学 | Bilateral power supply ride-through power utilization system of traction network and control method |
| CN114336639A (en) * | 2022-03-17 | 2022-04-12 | 西南交通大学 | Intelligent traction substation and power flow control method thereof |
| CN114336639B (en) * | 2022-03-17 | 2022-05-24 | 西南交通大学 | Intelligent traction substation and power flow control method thereof |
| CN114336642B (en) * | 2022-03-17 | 2022-06-07 | 西南交通大学 | Bilateral power supply ride-through power utilization system of traction network and control method |
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| CN109217330B (en) | 2023-10-27 |
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