CN110504697A - A kind of electrified railway in-phase power supply comprehensive compensating device and its comprehensive compensation method - Google Patents
A kind of electrified railway in-phase power supply comprehensive compensating device and its comprehensive compensation method Download PDFInfo
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- CN110504697A CN110504697A CN201910938978.5A CN201910938978A CN110504697A CN 110504697 A CN110504697 A CN 110504697A CN 201910938978 A CN201910938978 A CN 201910938978A CN 110504697 A CN110504697 A CN 110504697A
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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
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
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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
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase 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
- Y02E40/30—Reactive power compensation
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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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of electrified railway in-phase power supply comprehensive compensating device and its compensation methodes, are related to electrified railway in-phase power supply technical field.One of topological structure, traction-compensator transformer compensative winding ab and dc that primary side is connected with the three-phase of three-phase high-voltage bus HB；Reactive compensation unit SVG1 is connected with the port ac of compensative winding, and reactive compensation unit SVG2 is connected with the port ad of compensative winding；The two of topological structure, traction-compensator transformer compensative winding ab and dc that primary side is connected with the three-phase of three-phase high-voltage bus HB；Reactive compensation unit SVG1 is connected with the port ac of compensative winding, and reactive compensation unit SVG2 is connected with the port ad of compensative winding, and reactive compensation unit SVG3 is connected with the port ab of compensative winding；The input terminal of controller CD is connected with the measuring signal output end of voltage transformer VT, Current Transmit respectively in TT&C system MCS.
Description
Technical field
The present invention relates to attached wires of AC electrified railway traction power supply technical fields.
Background technique
The rapid development of China Railway High-speed further embodies the existing attached wires of AC electrified railway power frequency single phase power supply of China
The superiority of standard.Electric split-phase is arranged in single phase industrial frequence standard power reguirements at split-phase subregion, to reduce traction load to electric power
The unbalanced influence of system, generallys use the scheme of rotation phase sequence, split-phase switched-mode power supply.Practice and theory show that electric split-phase is to lead
Draw link most weak in power supply system, train may generate switching overvoltage in logical phase splitting, train falls split-phase etc.
Problem, to improve shipping mass, guaranteeing that operational reliability, reduction train fall split-phase, raising train regenerating braking energy utilization rate
The problems such as, preferably reduce electric split-phase quantity to the greatest extent.
Existing phase-splitting technology of crossing is broadly divided into ground automatic passing over of neutral section technology and vehicle-mounted automatic passing over of neutral section technology, but practical
Occur multiple overvoltage phenomenon in operation, seriously affected to the safe operation band of electric railway railway and hidden danger, and supplies
Electric breakpoint still has.Eliminating the electric dysgenic essential measure of split-phase is to reduce or cancel electric split-phase.Southwest Jiaotong University's religion
It is beheaded and time proposes cophase supply concept, and Research Team is led to carry out a large amount of fruitful researchs, form complete
Cophase supply Systems Theory and engineering technology.The electric split-phase in electric substation exit can be cancelled using cophase supply technology, used
Novel two-side feeding technology cancels electricity split-phase locating for subregion, realizes the perforation power supply of all fronts no phase separation, can eliminate electric split-phase bring
Adverse effect.Wherein, two-side feeding is widely used by the Soviet Union all the time, two-side feeding there are penetration (euqalizing current),
The problems such as protection cooperation, electric energy tariffing, these problems can technically be solved using lower cost, but difficulty is Electricity Department
Whether door receives.
It is used compared to combined type cophase supply technology and negative phase-sequence and idle comprehensive compensation is realized based on active effective power flow,
The present invention is based on active reactive power flows to realize negative phase-sequence and idle comprehensive compensation, does not change the existing effective power flow of system, realizes same
It mutually powers, combines the possible harmonic current problem of traction load at compensation three-phase high-voltage bus.
Summary of the invention
It is an object of the present invention to provide a kind of electrified railway in-phase power supply comprehensive compensating devices, it effectively solves alternating-current electric
Change influence of the railway to imbalance of three-phase voltage at points of common connection, while not bringing new power quality problem.
It is a further object to provide a kind of electrified railway in-phase power supply comprehensive compensation methods, it is effectively solved
Influence of the attached wires of AC electrified railway to imbalance of three-phase voltage at points of common connection, while new power quality problem is not brought.
The purpose of the present invention is achieved through the following technical solutions: a kind of electrified railway in-phase power supply comprehensive compensation
Device, the traction-being connect including the three-phase high-voltage bus HB being connect with electricity grid substation and primary side with three-phase high-voltage bus HB
The cophase supply traction substation CSS that compensator transformer TT, negative sequence compensation device NCD and TT&C system MCS are constituted；It is described to lead
Draw-the secondary side port winding a1b1 of compensator transformer TT concatenation Current Transmit after access contact net OCS, another side ports are simultaneously
It is grounded after meeting voltage transformer VT；The negative sequence compensation device NCD include traction-compensator transformer TT and its secondary side compensation around
Two kinds of topological structures including group and reactive compensation unit；One of topological structure: when being described as Two-port netwerk compensation model, idle benefit
Repay two terminals of cell S VG1 a terminal and compensative winding with traction-compensator transformer TT secondary side compensative winding ab respectively
The c terminal of cd is connected, two terminals of reactive compensation unit SVG2 respectively with traction-compensator transformer TT secondary side compensative winding
The a terminal of ab is connected with the d terminal of compensative winding cd；The two of topological structure: when being described as three port compensation models, reactive compensation
Two terminals of cell S VG1 a terminal and compensative winding cd with traction-compensator transformer TT secondary side compensative winding ab respectively
C terminal be connected, two terminals of reactive compensation unit SVG2 respectively with traction-compensator transformer TT secondary side compensative winding ab
A terminal be connected with the d terminal of compensative winding cd, two terminals of reactive compensation unit SVG3 respectively with traction-compensation transformation
The a terminal of the compensative winding ab of device TT secondary side is connected with b terminal；The TT&C system MCS includes that voltage transformer VT, electric current are mutual
Sensor CT and controller CD, the input terminal of controller CD are defeated with the measuring signal of voltage transformer VT, Current Transmit respectively
Outlet is connected；When if Two-port netwerk compensation model, the output end of controller CD respectively with reactive compensation unit SVG1, reactive compensation
The control terminal of cell S VG2 is connected, when if three port compensation models, the output end of controller CD respectively with reactive compensation list
First SVG1, reactive compensation unit SVG2, reactive compensation unit SVG3 control terminal be connected.
If traction electric network feeding system is direct-furnish mode or the direct-furnish mode with return wire, the traction-compensator transformer
A terminal ground of the tractive winding a1b1 of TT secondary side, another terminal is connected to contact net OCS, if traction electric network feeding system is
One terminal of AT power supply mode, the traction-compensator transformer TT secondary side tractive winding a1b1 is connected to contact net OCS, separately
One terminal is connected to negative feeder.
The traction-compensator transformer TT secondary side winding a1b1 and compensative winding ab is for two independent windings or by leading
Draw-the a1 tap of the secondary side winding a1b1 of compensator transformer TT and the b tap of compensative winding ab constitute compound winding a1b, it is described
The terminal b1 and terminal a of compound winding a1b is the extraction of same tap.
Pass between the number of turns n of the winding CD of the number of turns m and primary side of the traction-compensator transformer TT primary side winding AB
System are as follows:The circle of the number of turns m ' and compensative winding cd of the traction-compensator transformer TT secondary side compensative winding ab
Relationship between number n ' are as follows: n '=2m '.
Another object of the present invention is achieved through the following technical solutions: a kind of electrified railway in-phase power supply
Comprehensive compensation method, specific steps are as follows:
(1) by computer simulation technique, load of traction substation process is determined, according to load of traction substation process,
Than the topological structure for selecting negative sequence compensation device NCD, the form of final topology structure is determined.
(2) with the negative phase-sequence allowance S at the corresponding points of common connection of three-phase high-voltage bus HBεAllow as its negative sequence power
Value；
(3) controller CD is calculated negative by the voltage and current that voltage transformer VT and Current Transmit measurement obtain
Lotus SL, judge load SLNegative sequence powerAllow power S with three-phase high-voltage bus negative phase-sequenceεRelationship: ifAt this time not
It needs to compensate negative phase-sequence；IfIt needs to administer negative phase-sequence at this time.
(4) ifNegative sequence compensation device NCD devotes oneself to work, and controller CD controls corresponding reactive compensation unit and issues
Reactive power realizes the improvement to negative phase-sequence.
When using Two-port netwerk compensation model, comprehensive compensation method only compensates the negative of load fundamental active current component generation
Sequence electric current；The idle Q issued by control reactive compensation unit SVG11The idle Q issued with reactive compensation unit SVG22It is big
Negative phase-sequence and idle comprehensive compensation may be implemented in small and type；If the power factor after compensation at three-phase high-voltage bus is constant,
The size of reactive compensation unit SVG1 and reactive compensation unit SVG2 are respectively as follows:When feeder load is in traction working condition, Q1And Q2It is respectively perceptual
And capacitive；When feeder load is in regeneration regime, Q1And Q2Respectively capacitive and perception.
When using three port compensation models, comprehensive compensation method is issued idle by control reactive compensation unit SVG1
Q1The idle Q issued with reactive compensation unit SVG22And the idle Q that reactive compensation unit SVG3 is issued3Size and type,
Realize negative phase-sequence and idle comprehensive compensation；One of situation, if do not change after compensation power at three-phase high-voltage bus HB because
Number, then the size of reactive compensation unit SVG1, reactive compensation unit SVG2 and reactive compensation unit SVG3 are respectively as follows:When
When feeder load is in traction working condition, Q1、Q2And Q3Respectively perception, capacitive, capacitive；When feeder load is in regeneration regime,
Q1、Q2And Q3Respectively capacitive, perception, perception.
Compared with prior art, the beneficial effects of the present invention are:
One, the technical solution is suitable for the negative sequence management under various power factor locomotive situations；
Two, the technical solution can be realized negative phase-sequence and idle comprehensive compensation；
Three, tractive transformer and compensator transformer can be total to case manufacture, save floor occupying area；
Four, result of the present invention is simple, technically reliable, and superior performance is convenient to carry out.
Detailed description of the invention
Fig. 1 is Two-port netwerk compensation model structural schematic diagram of the present invention.
Fig. 2 is between Two-port netwerk compensation model TT&C system of the present invention and reactive compensation unit, traction load signal acquisition
Relational structure schematic diagram.
Fig. 3 is three port compensation model structural schematic diagrams of the invention.
Fig. 4 is between three port compensation model TT&C systems of the invention and reactive compensation unit, traction load signal acquisition
Relational structure schematic diagram.
Fig. 5 is comprehensive compensation method flow diagram of the present invention.
Fig. 6 is a kind of traction-compensator transformer winding connection schematic diagram of the present invention.
Fig. 7 is another traction-compensator transformer winding connection schematic diagram of the invention.
Specific embodiment
In order to be best understood from creation thought of the invention, illustrate the working principle of the invention: herein with three-phase high-voltage bus
For negative phase-sequence examination point up to standard, the SVG reactive compensation unit by being connected to compensator transformer issues idle, compensation feeder load production
Raw negative-sequence current (power), reaches national standard after compensation, wherein reactive compensation unit does not change original active tide of system
Stream.The present invention is further described with embodiment with reference to the accompanying drawing.
Embodiment one
As shown in Figure 1, the embodiment of the invention provides one of topological structures: the electric railway of Two-port netwerk compensation model is same
The mutually schematic diagram of power supply comprehensive compensating device, including the three-phase high-voltage bus HB being connect with electricity grid substation and primary side and three-phase
The cophase supply that traction-compensator transformer TT, the negative sequence compensation device NCD and TT&C system MCS of high voltage bus HB connection are constituted
Traction substation CSS；It is connect after the concatenation Current Transmit of the traction-compensator transformer TT secondary side port winding a1b1
Net-fault OCS, another side ports are simultaneously grounded after meeting voltage transformer VT；The Two-port netwerk compensation model, including primary side and three-phase height
Traction-compensator transformer compensative winding ab and dc, reactive compensation unit SVG1 and the nothing for pressing A, B, C three-phase of bus HB connected
Function compensating unit SVG2, reactive compensation unit SVG1 are connected with the port ac of traction-compensator transformer compensative winding, idle benefit
Cell S VG2 is repaid to be connected with the port ad of traction-compensator transformer compensative winding；In Fig. 1, △, * respectively indicate traction-benefit
Repay the Same Name of Ends of transformer TT winding.
As shown in Fig. 2, the TT&C system MCS includes voltage transformer VT and Current Transmit and controller CD, control
The input terminal of device CD processed is connected with the measuring signal output end of voltage transformer VT and Current Transmit and controller CD respectively,
The output end of controller CD is connected with the control terminal of reactive compensation unit SVG1 and reactive compensation unit SVG2 respectively.
Embodiment two
As shown in figure 3, the embodiment of the invention provides the electric railway of two: three port compensation models of topological structure is same
The mutually schematic diagram of power supply comprehensive compensating device, including the three-phase high-voltage bus HB being connect with electricity grid substation and primary side and three-phase
The cophase supply that traction-compensator transformer TT, the negative sequence compensation device NCD and TT&C system MCS of high voltage bus HB connection are constituted
Traction substation CSS；It is connect after the concatenation Current Transmit of the traction-compensator transformer TT secondary side port winding a1b1
Net-fault OCS, another side ports are simultaneously grounded after meeting voltage transformer VT；Three port compensation model, including primary side and three-phase height
Traction-compensator transformer compensative winding ab and dc, the reactive compensation unit SVG1, nothing for pressing A, B, C three-phase of bus HB connected
Function compensating unit SVG2 and reactive compensation unit SVG3, reactive compensation unit SVG1 and traction-compensator transformer compensative winding
The port ac be connected, reactive compensation unit SVG2 is connected with the port ad of traction-compensator transformer compensative winding, reactive compensation
Cell S VG3 is connected with the port ab of traction-compensator transformer compensative winding；In Fig. 3, △, * respectively indicate traction-compensation
The Same Name of Ends of transformer TT winding.
As shown in figure 4, in embodiments of the present invention, the TT&C system MCS is by voltage transformer pt, Current Transmit
It is collectively formed with controller CD；The measurement with voltage transformer pt and Current Transmit respectively of the input terminal of the controller CD
End connection, the output end of controller CD respectively with reactive compensation unit SVG1, reactive compensation unit SVG2 and reactive compensation unit
The control terminal of SVG3 is connected.
Embodiment three
As shown in figure 5, the embodiment of the invention provides a kind of electrified railway in-phase power supply comprehensive compensation method processes to show
It is intended to, the present embodiment is by taking Two-port netwerk compensation model comprehensive compensation method as an example, a kind of electrified railway in-phase power supply comprehensive compensation
Method specific steps are as follows:
(1) by computer simulation technique, load of traction substation process is determined, according to load of traction substation process,
Than the topological structure for selecting negative sequence compensation device NCD, the form of final topology structure is determined.
(2) with the negative phase-sequence allowance S at the corresponding points of common connection of three-phase high-voltage bus HBεAllow as its negative sequence power
Value；
(3) controller CD is calculated negative by the voltage and current that voltage transformer VT and Current Transmit measurement obtain
Lotus SL, judge load SLNegative sequence powerAllow power S with three-phase high-voltage bus negative phase-sequenceεRelationship: ifAt this time not
It needs to compensate negative phase-sequence；IfIt needs to administer negative phase-sequence at this time.
(4) ifNegative sequence compensation device NCD devotes oneself to work, and controller CD controls corresponding reactive compensation unit and issues
Reactive power realizes the improvement to negative phase-sequence.If the power factor after compensation at three-phase high-voltage bus is constant, reactive compensation unit
The size of SVG1 and reactive compensation unit SVG2 are respectively as follows:Work as feedback
When specific electric load is in traction working condition, Q1And Q2Respectively perception and capacitive；When feeder load is in regeneration regime, Q1And Q2Point
It Wei not capacitive and perception.
Example IV
As shown in fig. 6, the embodiment of the invention provides a kind of traction-compensator transformer winding connection schematic diagram, it is described to lead
Draw-the secondary side winding a1b1 and secondary side winding ab of compensator transformer TT be two independent windings.
As shown in fig. 7, the embodiment of the invention provides a kind of traction-compensator transformer winding connection schematic diagram, it is described to lead
Draw-the a1 tap of the secondary side winding a1b1 of compensator transformer TT and the b tap of compensative winding ab constitute compound winding a1b, it is described
The terminal b1 and terminal a of compound winding a1b is the extraction of same tap.
Claims (7)
1. a kind of electrified railway in-phase power supply comprehensive compensating device, including the three-phase high-voltage bus HB being connect with electricity grid substation
And traction-compensator transformer TT, negative sequence compensation device NCD and TT&C system MCS that primary side is connect with three-phase high-voltage bus HB
The cophase supply traction substation CSS of composition；It is mutual that the traction-compensator transformer TT secondary side port winding a1b1 concatenates electric current
Contact net OCS is accessed after sensor CT, another side ports are simultaneously grounded after meeting voltage transformer VT；It is characterized by: the negative phase-sequence is mended
Repay two kind topologys of the device NCD including traction-compensator transformer TT and its compensative winding and reactive compensation unit of secondary side
Structure；One of topological structure: when being described as Two-port netwerk compensation model, two terminals of reactive compensation unit SVG1 respectively with lead
Draw-a terminal of compensative winding ab of compensator transformer TT secondary side is connected with the c terminal of compensative winding cd, reactive compensation unit
Two terminals of SVG2 end d with a terminal of traction-compensator transformer TT secondary side compensative winding ab and compensative winding cd respectively
Son is connected；The two of topological structure: when being described as three port compensation models, two terminals of reactive compensation unit SVG1 respectively with lead
Draw-a terminal of compensative winding ab of compensator transformer TT secondary side is connected with the c terminal of compensative winding cd, reactive compensation unit
Two terminals of SVG2 end d with a terminal of traction-compensator transformer TT secondary side compensative winding ab and compensative winding cd respectively
Son is connected, two terminals of reactive compensation unit SVG3 end a with traction-compensator transformer TT secondary side compensative winding ab respectively
Son is connected with b terminal；The TT&C system MCS includes voltage transformer VT, Current Transmit and controller CD, controller CD
Input terminal be connected respectively with the measuring signal output end of voltage transformer VT, Current Transmit；Mould is compensated if Two-port netwerk
When formula, the output end of controller CD is connected with the control terminal of reactive compensation unit SVG1, reactive compensation unit SVG2 respectively, if
When for three port compensation models, the output end of controller CD respectively with reactive compensation unit SVG1, reactive compensation unit SVG2, nothing
The control terminal of function compensating unit SVG3 is connected.
2. a kind of electrified railway in-phase power supply comprehensive compensating device according to claim 1, it is characterised in that: if traction
Net power supply mode be direct-furnish mode or the direct-furnish mode with return wire, the traction of the traction-compensator transformer TT secondary side around
A terminal ground of group a1b1, another terminal are connected to contact net OCS, if traction electric network feeding system is AT power supply mode, institute
A terminal for stating traction-compensator transformer TT secondary side tractive winding a1b1 is connected to contact net OCS, another terminal is connected to negative
Feeder line.
3. a kind of electrified railway in-phase power supply comprehensive compensating device according to claim 1, it is characterised in that: described to lead
Draw-the secondary side winding a1b1 and compensative winding ab of compensator transformer TT be two independent windings or by traction-compensator transformer
The a1 tap of the secondary side winding a1b1 of TT and the b tap of compensative winding ab constitute compound winding a1b, the compound winding a1b's
Terminal b1 and terminal a is the extraction of same tap.
4. a kind of electrified railway in-phase power supply comprehensive compensating device according to claim 1, it is characterised in that: described to lead
Draw-the number of turns n of the winding CD of the number of turns m of the winding AB of compensator transformer TT primary side and primary side between relationship are as follows:The number of turns n ' of the number of turns m ' and compensative winding cd of the traction-compensator transformer TT secondary side compensative winding ab it
Between relationship are as follows: n '=2m '.
5. a kind of electrified railway in-phase power supply comprehensive compensation method, specific steps are as follows:
(1) by computer simulation technique, load of traction substation process is determined, according to load of traction substation process, than choosing
The topological structure of negative sequence compensation device NCD, determines the form of final topology structure.
(2) with the negative phase-sequence allowance S at the corresponding points of common connection of three-phase high-voltage bus HBεAs its negative sequence power permissible value；
(3) controller CD calculates load S by the voltage and current that voltage transformer VT and Current Transmit measurement obtainL,
Judge load SLNegative sequence powerAllow power S with three-phase high-voltage bus negative phase-sequenceεRelationship: ifIt does not need at this time
Negative phase-sequence is compensated；IfIt needs to administer negative phase-sequence at this time.
(4) ifNegative sequence compensation device NCD devotes oneself to work, and it is idle that controller CD controls corresponding reactive compensation unit sending
Power realizes the improvement to negative phase-sequence.
6. a kind of electrified railway in-phase power supply comprehensive compensation method according to claim 4, it is characterised in that: work as use
When Two-port netwerk compensation model, comprehensive compensation method only compensates the negative-sequence current of load fundamental active current component generation；Pass through control
The idle Q that reactive compensation unit SVG1 processed is issued1The idle Q issued with reactive compensation unit SVG22Size and type, can be with
Realize negative phase-sequence and idle comprehensive compensation；If the power factor after compensation at three-phase high-voltage bus is constant, reactive compensation unit
The size of SVG1 and reactive compensation unit SVG2 are respectively as follows:Work as feedback
When specific electric load is in traction working condition, Q1And Q2Respectively perception and capacitive；When feeder load is in regeneration regime, Q1And Q2Point
It Wei not capacitive and perception.
7. a kind of electrified railway in-phase power supply comprehensive compensation method according to claim 4, it is characterised in that: work as use
When three port compensation models, comprehensive compensation method passes through the idle Q that control reactive compensation unit SVG1 is issued1With reactive compensation list
The idle Q that first SVG2 is issued2And the idle Q that reactive compensation unit SVG3 is issued3Size and type, realize negative phase-sequence with it is idle
Comprehensive compensation；One of situation, if not changing the power factor at three-phase high-voltage bus HB, reactive compensation list after compensation
The size of first SVG1, reactive compensation unit SVG2 and reactive compensation unit SVG3 are respectively as follows:When
When feeder load is in traction working condition, Q1、Q2And Q3Respectively perception, capacitive, capacitive；When feeder load is in regeneration regime,
Q1、Q2And Q3Respectively capacitive, perception, perception.
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| CN111585289A (en) * | 2020-06-15 | 2020-08-25 | 西南交通大学 | In-phase power supply comprehensive compensation device and method for traction substation |
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| CN111585289A (en) * | 2020-06-15 | 2020-08-25 | 西南交通大学 | In-phase power supply comprehensive compensation device and method for traction substation |
| CN111585290A (en) * | 2020-06-15 | 2020-08-25 | 西南交通大学 | In-phase power supply structure of traction-compensation transformer and compensation method thereof |
| CN111600316A (en) * | 2020-06-15 | 2020-08-28 | 西南交通大学 | Structure of in-phase power supply comprehensive compensation device and compensation method thereof |
| CN111682556A (en) * | 2020-06-15 | 2020-09-18 | 西南交通大学 | Structure of in-phase power supply traction substation and compensation method thereof |
| CN111600316B (en) * | 2020-06-15 | 2022-03-25 | 西南交通大学 | Structure of in-phase power supply comprehensive compensation device and compensation method thereof |
| CN111585289B (en) * | 2020-06-15 | 2022-03-29 | 西南交通大学 | In-phase power supply comprehensive compensation device and method for traction substation |
| 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 |
| CN114771360A (en) * | 2022-04-21 | 2022-07-22 | 西南交通大学 | Alternating current and direct current traction power supply structure and control method for electrified railway |
| CN114771360B (en) * | 2022-04-21 | 2023-04-07 | 西南交通大学 | Alternating current and direct current traction power supply structure and control method for electrified railway |
| CN114954146A (en) * | 2022-05-07 | 2022-08-30 | 中铁第一勘察设计院集团有限公司 | Electrified railway 35kV/27.5kV auxiliary traction power supply and control method |
| CN114954146B (en) * | 2022-05-07 | 2024-04-30 | 中铁第一勘察设计院集团有限公司 | 35KV/27.5kV auxiliary traction power supply for electrified railway and control method |
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