CN86101664A - New main junction of power system of electric railway - Google Patents

New main junction of power system of electric railway Download PDF

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Publication number
CN86101664A
CN86101664A CN198686101664A CN86101664A CN86101664A CN 86101664 A CN86101664 A CN 86101664A CN 198686101664 A CN198686101664 A CN 198686101664A CN 86101664 A CN86101664 A CN 86101664A CN 86101664 A CN86101664 A CN 86101664A
Authority
CN
China
Prior art keywords
traction
phase
power
net
electric power
Prior art date
Application number
CN198686101664A
Other languages
Chinese (zh)
Other versions
CN1007506B (en
Inventor
刘联和
Original Assignee
华北电力学院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华北电力学院 filed Critical 华北电力学院
Priority to CN87102301A priority Critical patent/CN1007506B/en
Publication of CN86101664A publication Critical patent/CN86101664A/en
Publication of CN1007506B publication Critical patent/CN1007506B/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/12—Systems with propulsion devices between or alongside the rails, e.g. pneumatic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0605—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two belts, e.g. Hazelett-process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0685—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B22D41/34—Supporting, fixing or centering means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/02—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor with provision for bending the ends of the staples on to the work
    • B25C5/0285—Hand-held stapling tools, e.g. manually operated, i.e. not resting on a working surface during operation
    • B25C5/0292—Hand-held stapling tools, e.g. manually operated, i.e. not resting on a working surface during operation with the objects to be stapled together introduced perpendicularly to the longitudinal axis of the tool in an opening formed by an anvil and a plunger
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    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B41F—PRINTING MACHINES OR PRESSES
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    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/14—Registering devices with means for displacing the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
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    • B41F13/16—Registering devices with means for displacing the printing formes on the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B39/00—Increasing wheel adhesion
    • B60B39/003—Vehicle mounted non-skid chains actuated by centrifugal force
    • B60B39/006—Vehicle mounted non-skid chains actuated by centrifugal force characterised by a control system for the actuation of the rotating chain wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
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    • B60W30/18—Propelling the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/70—Pressure relief devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
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    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F16K17/162—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type
    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
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    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/122—Avoiding failures by using redundant parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/1284—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is a sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/38—Inputs being a function of speed of gearing elements
    • F16H59/40—Output shaft speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/38—Inputs being a function of speed of gearing elements
    • F16H59/42—Input shaft speed
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S477/00—Interrelated power delivery controls, including engine control
    • Y10S477/906—Means detecting or ameliorating the effects of malfunction or potential malfunction
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/4935—Impregnated naturally solid product [e.g., leather, stone, etc.]
    • Y10T428/662—Wood timber product [e.g., piling, post, veneer, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T477/00—Interrelated power delivery controls, including engine control
    • Y10T477/60—Transmission control
    • Y10T477/638—Transmission control with clutch control
    • Y10T477/6403—Clutch, engine, and transmission controlled
    • Y10T477/6407—Electronic digital control

Abstract

New main junction of power system of electric railway.Belong to the invention of electric railway main junction line form.Power system of electric railway obtains electric power from electric system at present, and the output of its traction substation is divided into two-phase traction net feed area at most, and the homophase feed area length of phase place is no more than the spacing L of substation by turns.The traction net system of novel tie lines is transformed into, the form that each traction substation is connected with three separate traction net feed area with all having equal opportunities mutually, and homo-phase traction net feed area extended length is 2L.Can reduce installed capacity thus, reduce cost and improve comprehensive benefit and reliability, improve asymmetric and disturbing influence.

Description

The invention belongs to power system of electric railway tie lines pattern.

Existing domestic and international power system of electric railway main junction circuit, the output of its traction substation is confined to be divided at most the networking form of two separate features, and the homophase feed area of voltage-phase traction net length is no more than traction substation spacing L by turns.Thereby cause:

Main transformer apparatus capacity degree of utilization deficiency is as Soviet Union Y/ With the Y/ Δ- -AT tie lines patent, (on January 18th, 1981 is with the tie lines patent of the A.C. Bao Qifu of Rostov railway institute name confirmation request) is confined to two separate feature outputs because of it, so cause main transformer that the illusory problem of underloading compatible amount, η are arranged Max=75% (1).Japan's three-phase-two phase inversion main transformer mode, the relative degree of utilization of its copper-steel material material is about 79.9%, (2).

At continuous homo-phase traction net feed area length l=(L)/2 (one way feeding) or the bilateral parallel operation of l=L() within, it is higher that no train is got the probability of stream, cause the average utilization of main transformer capacity further to reduce, China power system of electric railway η Av, min=10～20%, (3).

Existing power system of electric railway circuit itself for the asymmetric influence of electric system and to the disturbing influence of light current line facility along the line from the rejection deficiency.

The objective of the invention is to design a comprehensive benefit and reliability height, can improve asymmetric and disturbing influence, and be suitable for the electric power system tie lines of heavy duty and high speed train operation.

The feature of novel tie lines is:

One, novel tie lines solved each traction substation can both the equal-opportunity partition problem that has the traction net feed area of three separate features to the output of railway both sides.Traction net system is transformed into, and each traction substation expands to three separate characteristic formps with being connected from existing maximum two separate characteristic formps of traction net feed area, and the wiring of traction substation main transformer is Δ/Y 0(or Y/Z 0).

Two, multiple line of electrified railway direct-furnish type (or additional BT) main junction such as Fig. 1, with middle traction substation (1) is example, its up traction net (2) is powered by a, b respectively mutually in the left and right sides of traction substation, and descending traction net (2) is powered by c mutually in the traction substation left and right sides, the l=2L that other is alternately analogized.

Three, single line electric railway direct-furnish type (or additional BT) main junction such as Fig. 2, this wiring increase has out-phase transmission line of electricity arranged side by side (5), serial compensation capacitance (6), (6) in order to compensate the component reactance of (5), (5), constitute out-phase intersection chain parallel operation traction net system with (6) attached respectively extension and attached the outside of being fixed in pillar (7).(wherein L is for intersecting the parallel out-phase power transmission line distance of inserting for l=(L)/2+(L)+(L)/2.）

Four, the additional AT type main junction of multiple line has dual mode such as Fig. 3, Fig. 4, and the low pressure side of traction substation among Fig. 3 (1) is by Y-λ 0Wiring constitutes six phase star circuits, is further divided into 2U a, 2U b, 2U cThree groups of outputs and additional common AT(10); The low pressure side of (1) in Fig. 4 (traction side) keeps the Y of common version (with direct-furnish or additional BT time identical) 0Parallel third phase transmission line of electricity is set up in wiring.(11) that add are four terminal autotransformers of special shape, and (11) have two iron core windings of I00 ' and II 0 ' III, 0 ' be the symmetrical mid point of II III, U I0=U E(rated voltage of traction net (2)); U 00 '=1/2 U E; U II 0 '=U 0 ' III= 3 2 U E;W 1＝2W 2;W 3＝W 4。With common AT(9) difference is: the multiplication of voltage of (9) is 2U E, circulation 1/2 I between (2) and (2 ') j(I jThe finger electric locomotive is got the fluxion value from (2)); And the multiplication of voltage of (11) is 3/2 U E, get stream 2/3 I that between (2) and (2 '), (5), circulates as go up electric locomotive by (2) jWherein 1/3 I is respectively shared in (2 '), (5) j

The preceence of Fig. 4 is that (1) needn't increase and reforming equipment, and all ATization had both reached the inhibition disturbing influence, had simplified wiring again, had also reduced additional equipment and investment.Particularly this draws the minimizing part of net electric current mutually, has been transferred to other two-phase and shares by instantaneous, has laid in the nargin condition for improving the transportation carrying capacity, and this is that existing AT wiring is not available.

Five, the additional AT type main junction of single line can increase be locked in a tie for third a phase transmission line of electricity (6) and an AT(11 who introduces special shape again by Fig. 2) form.

Six, adapt to main junction measure such as Fig. 6 that heavy haul train passes through, drop into single-phase standby (increase-volume) voltage transformer (12) side by side by traction substation (1), its (12) follow the separate corresponding conversion of heavy haul train (13) place feed area, till behind the actual effectively service area of heavy haul train (13) being sent (1), its necessity is with sufficiency:

△/Y 0The three-phase of wiring main transformer has independence of equal value each other, and (different with existing Y/ △ ⊥/L) do not have influence mutually.

The apparatus capacity (12) that drops into has maximum degree of utilization side by side, no unnecessary and waste.

Do not influence, do not limit the normal operation of other separate feed area train.

Seven, take into account and provide and when carrying the power supply of non-traction power, Fig. 1,2 is inserted the V/Y of special shapes 0(or V/ △) three phase transformer (14) is as Fig. 7.Its former limit two phase windings are respectively by the W of equal turn numbers 1, W 2With W 3, W 4Form, on its center pillar W is set in the three-limb core 2, W 3On two posts W is set respectively in addition 1, W 4Constitute symmetrical three phase excitation thus, guarantee secondary side output balanced three-phase voltage; Fig. 3,4 is introduced common three-phase power transformer take into account non-traction power power supply.

The advantage of novel tie lines

1. novel tie lines can be exported the traction net feed area of three separate features, compares with existing two separate feed area modes, and the relative peak use rate of main transformer capacity can be by the η of Y/ △ main transformer Max=75% brings up to 100%.Reduced the general assembly capacity of equipment.

2. novel tie lines can be powered nearby by the low capacity electric system, can save the special high-pressure transmission line of electricity that existing tie lines must be set up along railway by bulk power system power supply station.

3. novel tie lines up-downgoing traction net (2) (2 ') is two out-phase parallel modes, compare with existing up-downgoing homophase parallel operation mode, it is about 23% that the maximum crushing of traction net can reduce, and L can corresponding increase more than 23%, the corresponding minimizing of general assembly apparatus capacity.

4. novel tie lines draws the neighbour circuit of net system, between two L between the up-downgoing traction net, in the continuous homophase feed area l scope, have the not available mutual shielding action of existing wiring, can not add AT, BT, or simplify and reduce the number of additional AT, BT.

5. can take into account with traction net system by above-mentioned 1,3 traction substations and provide and carry the non-traction power supply of three-phase.As district's power supply that railway is stood along the line, electricity consumption of road maintainance machinery equalization or local load power supply etc. can reduce the repetition engineering cost.

6. form 3 distribution parallel operation modes such as Fig. 1 in the l scope of homophase feed area, than the contact of existing single, double limit power supply mode closely, l has enlarged one times than existing wiring.(2) phase-splitting electricity segmentation (3) is corresponding to have reduced 50%, has reduced the weak link of (2).

7. for operation scheme and the cold standby mode of utilizing single transformer to form three-phase connection group provides advantage, (at η MaxImprove with investment and reduce, on the basis that benefit improves)

8. help improving power supply reliability again by 4 novel tie lines.

9. the equivalent internal resistance of source by 6 traction net loads reduces, and traction net network loss reduces, and is reduced and is reduced by 4.5 fixed loss, the repeated plant losses of drawing the net systems by 1 negative-sequence current added losses.

By 1,4 cause again to the asymmetric influence of electric system with the disturbing influence of light current road facility along the line is further reduced and suppresses.

Description of drawings:

Fig. 1 is a multiple line of electrified railway novel traction net system networking interconnecting wiring diagram, and a, b, c, o are a phase in the electric system among the figure, b phase, c phase and neutral; L is the traction substation spacing, and l is continuous homo-phase traction net feed area length, and (1) is traction substation, (2) be up traction net, (2 ') are descending traction net, and (3) are the phase-splitting electricity segmentation of traction net, and (4) are rail and the earth.

Fig. 2 is a single line electrified railway novel traction net system networking interconnecting wiring diagram, and (5) are parallel out-phase power transmission line among the figure, and (6) are series compensation capacitor, and (7) are traction net pillar, and (8) are insulator.

Fig. 3 is multiple line Δ/Y-λ 0-AT tie lines, (9) are common autotransformer among the figure, (10) up multiplication of voltage power transmission line, (10 ') are descending multiplication of voltage power transmission line, a ', b ', c ' they are the antiphase voltage sign of corresponding a, b, c, 2U a, 2U b, 2U cBe corresponding twice output voltage.

Fig. 4 is multiple line Δ/Y 0-AT tie lines, (11) are four terminal autotransformers.

Fig. 5 four terminal autotransformer circuit, I connects this and draws net mutually, and II connects another and draws net mutually, and III connects the parallel out-phase transmission line of electricity of third phase, and o connects (4) rail and the earth.

Power circuit increase-volume measure tie lines figure when Fig. 6 passes through for adapting to heavy haul train, (12) single-phase standby (increase-volume) voltage transformer, car is drawn in (13) heavy duty.

Fig. 7 is special two-phase three phase transformer.

List of references:

(1) power system of electric railway, railway press nineteen eighty-three

(2) design and running of balanced transformer in the traction substation, Tongji University, Zhou Hongchang 1981

(3) power supply system of electric traction main junction circuit studies, Huabei Electric Power College, Liu Lian and 1985

Claims (9)

1, a power system of electric railway obtains electric power from electric system, power to railway two side-lining net systems through traction substation.The invention is characterized in: traction net system is transformed into and makes each traction substation and draw being connected of net feed area.From existing maximum two separate characteristic formps, expand to three separate characteristic formps; The wiring of traction substation main transformer is △/Y o(or Y/Z o).
2, electric power system according to claim 1 is characterized in that: multiple line electrified railway direct-furnish (or additional BT) type main junction, and main transformer output and a0, b0, the traction net feed area of three separate features of c0 is connected.l＝2L。
3, electric power system according to claim 1, it is characterized in that: single line electrified railway direct-furnish (or additional BT) type main junction, by out-phase transmission line of electricity arranged side by side (5), serial compensation capacitance (6) and traction net (2) constitute out-phase and intersect the chain parallel operation and draw the net system.l＝ (L)/2 +（L）+ (L)/2 。
4, electric power system according to claim 1 is characterized in that: the traction side of the additional AT tie lines of multiple line is by Y-λ 0Constitute six phase star circuits, be divided into 2U a, 2U b, 2U cThree separate feature outputs and additional common AT.
5, electric power system according to claim 1 is characterized in that: multiple line adds the AT tie lines, and traction substation (1) does not increase and changes equipment, and the traction side is universal Y 0Wiring; Only increase a parallel powerline (5).
6, according to claim 1,5 described electric power systems, it is characterized in that: four terminal AT(11 of its traction net system inlet one special shape).
7, according to claim 1,3 described electric power systems, it is characterized in that: the additional AT tie lines increase of single line has second out-phase transmission line of electricity and has introduced AT(11) constitute.
8, according to claim 1,2,3 described electric power systems, it is characterized in that: traction substation drops into single-phase spare transformer (a 12) increase-volume that is suitable for the heavy duty driving side by side.
9, electric power system according to claim 1 is characterized in that: traction net electric power system is provided with special V/Y 0, V/ Δ three phase transformer (14) or common three-phase power transformer are taken into account to railway that non-traction three-phase power power supply is provided along the line.
CN87102301A 1986-03-15 1986-03-15 New main junction of power system of electric railway CN1007506B (en)

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Application Number Priority Date Filing Date Title
CN87102301A CN1007506B (en) 1986-03-15 1986-03-15 New main junction of power system of electric railway

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Application Number Priority Date Filing Date Title
CN87102301A CN1007506B (en) 1986-03-15 1986-03-15 New main junction of power system of electric railway

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CN1007506B CN1007506B (en) 1990-04-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968995A (en) * 2010-07-16 2011-02-09 四川电力试验研究院 Loaded voltage-regulating reformation device of power transformer and transformation method thereof
CN102320255A (en) * 2011-06-29 2012-01-18 浙江省电力设计院 External power supply system of electrified railway traction station
CN105922894A (en) * 2016-04-22 2016-09-07 中国船舶重工集团公司第七〇二研究所 Passing neutral section system based on high-power converter device, and control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968995A (en) * 2010-07-16 2011-02-09 四川电力试验研究院 Loaded voltage-regulating reformation device of power transformer and transformation method thereof
CN102320255A (en) * 2011-06-29 2012-01-18 浙江省电力设计院 External power supply system of electrified railway traction station
CN102320255B (en) * 2011-06-29 2013-01-30 浙江省电力设计院 External power supply system of electrified railway traction station
CN105922894A (en) * 2016-04-22 2016-09-07 中国船舶重工集团公司第七〇二研究所 Passing neutral section system based on high-power converter device, and control method thereof
CN105922894B (en) * 2016-04-22 2018-01-19 中国船舶重工集团公司第七一二研究所 A kind of neutral-section passing system and its control method based on high-power current converting device

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