CN110768252A - Non-three-phase to three-phase power supply system based on Lebrank wiring transformer - Google Patents
Non-three-phase to three-phase power supply system based on Lebrank wiring transformer Download PDFInfo
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- CN110768252A CN110768252A CN201911085942.3A CN201911085942A CN110768252A CN 110768252 A CN110768252 A CN 110768252A CN 201911085942 A CN201911085942 A CN 201911085942A CN 110768252 A CN110768252 A CN 110768252A
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- 239000003990 capacitor Substances 0.000 claims description 7
- 238000004146 energy storage Methods 0.000 claims description 7
- 230000001131 transforming effect Effects 0.000 claims description 4
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- 238000012423 maintenance Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
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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
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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
- H02J3/1807—Arrangements for adjusting, eliminating or compensating reactive power in networks using series compensators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
- H02M5/14—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion between circuits of different phase number
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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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Abstract
The application discloses a non-three-phase to three-phase power supply system based on a Lebrank connection transformer, which comprises a power transmission line, a three-phase static var generator and a Lebrank connection transformer; the three-phase port of the Lebrank connection transformer is used as an output port to provide a three-phase power supply for a three-phase power consumer, and the input end of the Lebrank connection transformer is respectively connected with a three-phase static var generator and a power transmission line; and the input end of the three-phase static var generator is connected with the power transmission line. This application can realize providing three phase power's function for the user through single-phase electric wire and two-phase power transmission line, extensively is applicable to distribution system transformation and trouble and salvagees.
Description
Technical Field
The application relates to the technical field of power distribution, in particular to a non-three-phase-to-three-phase power supply system based on a Lebrank connection transformer.
Background
In the ac power supply system of the power system, a three-phase ac power supply system is widely used. In the field of low-voltage power distribution in China, single-phase power transmission lines are generally erected to provide electric energy for users, users are geographically dispersed in partial regions, and a two-phase power transmission line mode is also adopted to provide electric energy for users. When a user who only accesses a single-phase or two-phase power transmission line needs to use a three-phase power supply, according to the prior art, only the three-phase power transmission line can be re-erected to provide the three-phase power supply for the user, and the method is long in time consumption, high in cost and low in economical efficiency.
Meanwhile, the transmission line is generally erected outdoors, so that the regional span is wide, the environmental conditions are variable, and various line breakage faults are generated due to the long-term mechanical force, the action of electromagnetic force, the thermal effect, serious oxidation, poor contact and the like, so that the equipment cannot normally operate. When the original three-phase transmission line has one or two-phase line break faults due to external reasons, the three-phase power supply mode is changed into a non-three-phase power supply mode, so that a three-phase power supply required by a user cannot be provided for the user. The existing solution can only provide a three-phase power supply in a short time through the economic rush repair of power maintenance personnel, and has great danger when the rescue is carried out in severe weather, so that the personal safety of the power maintenance personnel is difficult to ensure.
If the single-phase or two-phase power transmission line can be converted into a three-phase power supply mode through a simpler power equipment structure under the condition that the power quality of a power grid is allowed, a user can obtain a three-phase power supply at a lower cost in a shorter time, the cost input of a power transmission facility can be saved, the emergency supply of the three-phase power supply can be realized when the three-phase power transmission line is broken, the emergency maintenance of power maintenance personnel under the severe environment condition is avoided, and the personal safety of the power maintenance personnel is guaranteed.
Disclosure of Invention
In view of this, the application provides a non-three-phase to three-phase power supply system based on le brank connection transformer, has solved the technical problem that provides three-phase power through single-phase or two-phase power transmission line, can realize under the condition that need not erect the power transmission line again, for the regional user of non-three-phase power transmission line erections provides symmetrical three-phase power, also can promptly provide three-phase power under the condition that original three-phase power transmission line takes place one or two-phase broken string, avoided long distance's the power transmission line of erectting, reduce the potential safety hazard that electric power maintenance personnel salvageed and cause.
In order to solve the problem that users in non-three-phase transmission line areas and users incapable of obtaining three-phase power supply due to three-phase transmission line faults obtain the three-phase power supply in a short time on the basis of meeting the requirements of economy, safety and timeliness, the technical scheme adopted by the method is as follows:
the application provides a non-three-phase changes three-phase power supply system based on le brank wiring transformer includes:
the power transmission line is used for supplying power to the Lebrank connection transformer and the three-phase static var generator;
the Lebrank connection transformer is used for transforming and phase-modulating the current provided by the power transmission line and the three-phase static var generator and providing a symmetrical three-phase power supply for users;
the three-phase static var generator is used for converting the shunted current in the power transmission line and supplying power to the Lebrank connection transformer;
the three-phase port of the Lebrank connection transformer is used as an output end to provide a three-phase power supply for a three-phase power consumer, and the input end of the Lebrank connection transformer is respectively connected with a three-phase static var generator and a power transmission line; and the input end of the three-phase static var generator is connected with the power transmission line.
Optionally, the i-terminal of the first V-shaped winding in the leburn junction transformer is connected to the k-terminal of the second V-shaped winding.
Optionally, the power transmission line is a single-phase power transmission line, the terminal a of the leburn connection transformer is connected to the power transmission line, and the terminal B and the terminal C of the leburn connection transformer are respectively connected to the terminal M and the terminal N of the three-phase static var generator; and the P terminal of the three-phase static var generator is connected with the power transmission line, and the N terminal is grounded.
Optionally, the power transmission line is a two-phase power transmission line, the terminal a of the leburn connection transformer is connected to the power transmission line, and the terminal B and the terminal C of the leburn connection transformer are respectively connected to the terminal M and the terminal N of the three-phase static var generator; and a P terminal and an N terminal in an input port of the three-phase static var generator are respectively connected with an A-phase power transmission line and a B-phase power transmission line of the power transmission line.
Optionally, the three-phase static var generator includes six high-power transistors, a dc energy storage capacitor, and a pulse modem; every two high-power transistors are connected in series with the collector of the other high-power transistor through the emitter of one high-power transistor to form a group of high-power transistor groups; the series points of the emitting electrodes and the collecting electrodes in the three groups of high-power transistor groups form the external P terminal, M terminal and N terminal of the three-phase static var generator; three groups of high-power transistor groups are connected in parallel in the forward direction, the connection point of an emitter is a point e, the connection point of a collector is a point f, and a direct-current energy storage capacitor is connected between the point e and the point f; the control electrode of each high-power transistor is connected to a pulse width modem.
Optionally, the input current of the three-phase static var generator is one half of the current I of the transmission line; the input voltage of the terminal B in the Lebrak connection transformer is equal to the input voltage of the terminal A in the Lebrak connection transformer in magnitude, and the phases of the input voltages are 90 degrees; the input current of the B terminal in the Lebrank connection transformer is equal to the input current of the three-phase static var generator.
Alternatively, the high-power transistor may be an integrated gate commutated thyristor.
Alternatively, the high-power transistor may be an insulated gate bipolar transistor.
Compared with the prior art, the beneficial effect of this application technique is:
the method comprises the following steps that firstly, in a place where only a single-phase power transmission line with a neutral point grounded is erected in a power distribution network, as a three-phase power supply is needed in an emergency and the erection time of a new three-phase line is not allowed, under the condition that the power quality of the power distribution network is allowed, the three-phase power supply can be provided through the power supply system;
secondly, in the place where only two-phase power transmission lines are erected in the power distribution network, because three-phase power is needed in an emergency and the time for erecting a new three-phase line is not allowed, under the condition that the power quality of the power grid is allowed, the power supply system can provide three-phase power;
thirdly, when one phase or two phases of power users are disconnected, and the maintenance environment is severe at that time, three-phase electric energy can be provided by the method, and the circuits are maintained after the weather environment is improved, so that potential safety hazards possibly existing in outdoor emergency repair of power maintenance personnel are reduced, and the possibility of larger accidents caused by emergency situations is also reduced;
fourthly, the structure is simple, the universality is good, the economical efficiency is good, and the implementation is easy.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a basic structure of a non-three-phase to three-phase power supply system based on a leburn connection transformer according to an embodiment of the present application;
FIG. 2 is a connection diagram of a specific structure of a non-three-phase to three-phase power supply system based on a Lebrank connection transformer according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a three-phase static var generator of a non-three-phase to three-phase power supply system based on a leburn connection transformer according to an embodiment of the present application;
fig. 4 is a connection diagram of a specific structure of a non-three-phase to three-phase power supply system based on a leburn connection transformer according to a second embodiment of the present application.
Reference numerals: 1-transmission line, LA-a phase transmission line, LB-B-phase transmission line, 2-luxian transformer, 3-three-phase static var generator, BG-high power transistor, UAInput voltage between terminals A and C in a Lebrank line transformer, UB-an input voltage between the B and C terminals in a Lebrank line transformer, an I-power line current,I1input current at terminal A in a Lebrank line transformer, I2Input current to the P terminal of a three-phase static var generator, IBThe input current of the B terminal in the leburn-wired transformer 2.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Referring to the structural diagrams shown in fig. 1 and fig. 2, the basic operation principle of the non-three-phase to three-phase power supply system based on the leburn connection transformer provided by the present application is as follows:
provided with a transmission line LAIs the input current I of the A terminal in the I, Lebrank connection transformer 21The input current of the three-phase static var generator is I2The input current of the terminal B in the Lebrak connection transformer 2 is IBThe input voltage between the A terminal and the C terminal of the Lebrank connection transformer 2 is UAThe input voltage between the terminal B and the terminal C of the Lebrank junction transformer 2 is UB(ii) a Input current I of A terminal in Lebrank line transformer 21Is a transmission line LAIs one half of the current I of (a); input voltage U in Lebrank line transformer 2BAnd an input voltage UAEqual in magnitude and phase with UAAt 90 DEG, input current I to terminal B of Lebrank junction transformer 2BEqual to input current I of three-phase static var generator2(ii) a The delta winding side of the leburn junction transformer 2 is used to run loads requiring three-phase power by providing a symmetrical three-phase power supply.
The present application will be described in further detail with reference to examples.
Example one
As shown in fig. 1, the embodiment of the present application provides a non-three-phase to three-phase power supply system based on a leburn wiring transformer, which mainly includes a power transmission line 1, a leburn wiring transformer 2 and a three-phase static var generator 3. The power transmission line 1 is used for carrying out current transmission on a Lebran connection transformer 2 and a three-phase static var generator 3; the terminal i of the first V-shaped winding in the Lebrank connection transformer 2 is connected with the terminal k of the second V-shaped winding, and the Lebrank connection transformer 2 is used for transforming and phase modulating the current provided by the power transmission line 1 and the three-phase static var generator 3 and then providing a symmetrical three-phase power supply for a user; the three-phase static var generator 3 is used for converting the shunted current in the power transmission line 1 and supplying power to the Lubrank connection transformer 2; the transmission line 1 is respectively connected with a three-phase static var generator 3 and a Lebrank connection transformer 2, the three-phase static var generator 3 is connected with the Lebrank connection transformer 2, and the Lebrank connection transformer 2 provides a three-phase power supply for a three-phase power user backwards.
As shown in fig. 2 and 3, the 220V transmission line 1 of the neutral point grounding power grid is a single-phase transmission line and the current is I, and the transmission line 1 is respectively connected to the a terminal of the leburn connection transformer 2 and the P terminal of the three-phase static var generator 3; the current magnitude of the A terminal of the power transmission line 1 input into the Lebrank connection transformer 2 is I1The magnitude of the current input to the P terminal of the three-phase static var generator 3 is I2(ii) a The B terminal and the C terminal in the Lebrank connection transformer 2 are respectively connected with the M terminal and the N terminal of the three-phase static var generator 3, wherein the N terminal is grounded; the three-phase static var generator 3 comprises six high-power transistors BG, a direct-current energy storage capacitor and a pulse modem; every two high-power transistors BG are connected in series with the collector of another high-power transistor BG through the emitter of one high-power transistor BG to form a group of high-power transistor groups; the three groups of high-power transistor groups are connected in parallel in the forward direction, the connection point of the emitter is a point e, the connection point of the collector is a point f, and a direct-current energy storage capacitor is connected between the point e and the point f; the control electrode of each high-power transistor BG is connected to a pulse width modem; the triangular winding sides a, b, c of the leburn junction transformer 2 provide three-phase symmetrical power to a three-phase power consumer.
Wherein the input current I of the three-phase static var generator 32For transmitting electricityLine LAIs one half of the current I of (a); input voltage U between B terminal and C terminal in Lebrank connection transformerBInput voltage U between A terminal and C terminal of Lobrank connection transformerAOf equal magnitude and in phase with each other by 90 DEG, input current I to the B terminal of the Lebrak junction transformer 2BEqual to input current I of three-phase static var generator2。
The high-power transistor BG shown in FIG. 3 is an integrated gate commutated thyristor IGCT; in practical implementation, an insulated gate bipolar transistor IGBT may also be used.
Compared with the prior art, the power distribution network only has erected the place of the single-phase transmission line of neutral point ground connection, because need three-phase power supply in urgent short time, and erect new three-phase circuit time and not allow, under the circumstances that the electric energy quality of electric wire netting allows, can pass through this application the power supply system provides three-phase power supply. This application only has erect the place of double-phase power transmission line at the distribution network, because need three-phase power for urgent short time, and erect new three-phase circuit time and do not allow, under the circumstances that electric wire netting power quality allows, can pass through this application power supply system provides three-phase power. When a three-phase power user has one-phase or two-phase broken line and the maintenance environment is severe at that time, three-phase electric energy can be provided by the method, and the line is maintained after the weather environment is improved, so that potential safety hazards which may exist in outdoor emergency repair of power maintenance personnel are reduced, and the possibility of larger accidents caused by emergency situations is also reduced. In addition, the system provided by the application is simple in structure, good in universality, good in economical efficiency and easy to implement.
Example two
The non-three-phase to three-phase power supply system based on the leburn wiring transformer in the embodiment of the present application has the same basic structure as that of the first embodiment of the present application, that is, as shown in fig. 1, the power supply system mainly includes a power transmission line 1, a leburn wiring transformer 2 and a three-phase static var generator 3. The power transmission line 1 is used for carrying out current transmission on a Lebran connection transformer 2 and a three-phase static var generator 3; the Lebrank connection transformer 2 is used for transforming and phase modulating the current provided by the power transmission line 1 and the three-phase static var generator 3 and then providing a symmetrical three-phase power supply for a user, and the terminal i of the first V-shaped winding in the Lebrank connection transformer 2 is connected with the terminal k of the second V-shaped winding; the three-phase static var generator 3 is used for converting the shunted current in the power transmission line 1 and supplying power to the Lubrank connection transformer 2; the transmission line 1 is respectively connected with a three-phase static var generator 3 and a Lebrank connection transformer 2, the three-phase static var generator 3 is connected with the Lebrank connection transformer 2, and the Lebrank connection transformer 2 provides a three-phase power supply for a three-phase power user backwards.
In this embodiment, the structures and the connection modes of the six high-power transistors BG, the dc energy storage capacitor and the pulse width modem in the three-phase static var generator 3 are completely the same as those shown in fig. 3 in the first embodiment of the present application, and thus are not described again.
In the embodiment of the application, the high-power transistor BG is an integrated gate commutated thyristor IGCT; in practical implementation, the high-power transistor BG may also adopt an insulated gate bipolar transistor IGBT.
Referring to fig. 2 and 4, the non-three-to-three phase power supply system based on the lebrand connection transformer according to the embodiment of the present application is different from the first embodiment of the present application in that the power transmission line 1 according to the embodiment of the present application is a two-phase power transmission line; l in two-phase transmission linesA、LBThe voltage between the two lines is 220V, the input current in the power transmission line 1 is I, and the A-phase power transmission line L in the power transmission line 1ARespectively connected to the A terminal of the Lebrak connection transformer 2 and the P terminal of the three-phase static var generator 3, and the current input to the A terminal of the Lebrak connection transformer 2 is I1The magnitude of the current input to the P terminal of the three-phase static var generator 3 is I2(ii) a B-phase transmission line L in transmission line 1BThe N terminal of the three-phase static var generator 3 is accessed; the M terminal and the N terminal of the three-phase static var generator 3 are respectively and correspondingly connected with the B terminal and the C terminal of the Lebrank connection transformer 2; the triangular winding sides a, b, c of the leburn junction transformer 2 provide three-phase symmetrical power to a three-phase power consumer.
Wherein the input current I of the three-phase static var generator 32Is a transmission line LAIs one half of the current I of (a); input voltage U between B terminal and C terminal in Lebrank connection transformerBInput voltage U between A terminal and C terminal of Lobrank connection transformerAOf equal magnitude and in phase with each other by 90 DEG, input current I to the B terminal of the Lebrak junction transformer 2BEqual to input current I of three-phase static var generator2。
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (8)
1. A non-three phase to three phase power supply system based on a leburn wiring transformer, comprising:
the power transmission line (1) is used for supplying power to the Lebrank connection transformer (2) and the three-phase static var generator (3);
the Lebrank connection transformer (2) is used for transforming and phase-modulating the current provided by the power transmission line (1) and the three-phase static var generator (3) and providing a symmetrical three-phase power supply for users;
the three-phase static var generator (3) is used for converting the shunted current in the power transmission line (1) and supplying power to the Lebrank connection transformer (2);
the three-phase port of the Lebrank connection transformer (2) serves as an output end to provide a three-phase power supply for a three-phase power consumer, and the input end of the Lebrank connection transformer (2) is respectively connected with the three-phase static var generator (3) and the power transmission line (1); the input end of the three-phase static var generator (3) is connected with the power transmission line (1).
2. A system according to claim 1, characterized in that the i-terminal of the first V-shaped winding in the leburn's wiring transformer (2) is connected to the k-terminal of the second V-shaped winding.
3. The system according to claim 2, characterized in that the transmission line (1) is a single-phase transmission line, the a-terminals of the leburn wiring transformer (2) are connected to the transmission line (1), the B-terminals and the C-terminals of the leburn wiring transformer (2) are connected to the M-terminals and the N-terminals, respectively, of the three-phase static var generator (3); and the P terminal of the three-phase static var generator (3) is connected with the power transmission line (1), and the N terminal is grounded.
4. The system according to claim 2, characterized in that the transmission line (1) is a two-phase transmission line, the a-terminal of the leburn wiring transformer (2) is connected to the transmission line (1), the B-terminal and the C-terminal of the leburn wiring transformer (2) are connected to the M-terminal and the N-terminal of the three-phase static var generator (3), respectively; and a P terminal and an N terminal in an input port of the three-phase static var generator (3) are respectively connected with an A-phase transmission line and a B-phase transmission line of the transmission line (1).
5. The system according to claim 3 or 4, characterized in that the three-phase static var generator (3) comprises six high-power transistors, a direct-current energy storage capacitor and a pulse modem; every two high-power transistors are connected in series with the collector of the other high-power transistor through the emitter of one high-power transistor to form a group of high-power transistor groups; the series points of the emitting electrodes and the collecting electrodes in the three groups of high-power transistor groups form the external P terminal, M terminal and N terminal of the three-phase static var generator; three groups of high-power transistor groups are connected in parallel in the forward direction, the connection point of an emitter is a point e, the connection point of a collector is a point f, and a direct-current energy storage capacitor is connected between the point e and the point f; the control electrode of each high-power transistor is connected to a pulse width modem.
6. System according to claim 5, characterized in that the input current I of the three-phase static var generator (3)2Is one half of the current of the transmission line; the input voltage of the terminal B in the Lebrak wiring transformer (2) is equal to the input voltage of the terminal A in the Lebrak wiring transformer (2), and the phases of the input voltages are 90 degrees; the input current of the B terminal in the Lebrank connection transformer (2) is equal to the input current of the three-phase static var generator (3).
7. The system of claim 5, wherein the high power transistor is an integrated gate commutated thyristor.
8. The system according to claim 5, wherein the high power transistor is an insulated gate bipolar transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911085942.3A CN110768252A (en) | 2019-11-08 | 2019-11-08 | Non-three-phase to three-phase power supply system based on Lebrank wiring transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911085942.3A CN110768252A (en) | 2019-11-08 | 2019-11-08 | Non-three-phase to three-phase power supply system based on Lebrank wiring transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113852070A (en) * | 2021-09-09 | 2021-12-28 | 中铁二院工程集团有限责任公司 | Traction and electric power hybrid power supply system for alternating current electrified rail transit engineering |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586322A (en) * | 2018-12-21 | 2019-04-05 | 成都署信科技有限公司 | A kind of low-pressure single-phase alternating current power supply system |
| CN109672194A (en) * | 2018-12-20 | 2019-04-23 | 成都署信科技有限公司 | A kind of single-phase ac power supply system |
-
2019
- 2019-11-08 CN CN201911085942.3A patent/CN110768252A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672194A (en) * | 2018-12-20 | 2019-04-23 | 成都署信科技有限公司 | A kind of single-phase ac power supply system |
| CN109586322A (en) * | 2018-12-21 | 2019-04-05 | 成都署信科技有限公司 | A kind of low-pressure single-phase alternating current power supply system |
Non-Patent Citations (1)
| Title |
|---|
| 欧阳帆: ""基于平衡变压器三相-单相变换供电方式研究"", 《中国博士学位论文全文数据库 工程科技II辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113852070A (en) * | 2021-09-09 | 2021-12-28 | 中铁二院工程集团有限责任公司 | Traction and electric power hybrid power supply system for alternating current electrified rail transit engineering |
| CN113852070B (en) * | 2021-09-09 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Traction and power hybrid power supply system for alternating current electric rail transit engineering |
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Application publication date: 20200207 |