CN109245285A - A kind of redundant topology structure of delta network - Google Patents
A kind of redundant topology structure of delta network Download PDFInfo
- Publication number
- CN109245285A CN109245285A CN201811245868.2A CN201811245868A CN109245285A CN 109245285 A CN109245285 A CN 109245285A CN 201811245868 A CN201811245868 A CN 201811245868A CN 109245285 A CN109245285 A CN 109245285A
- Authority
- CN
- China
- Prior art keywords
- submodule
- switching switch
- switch
- redundancy
- switching
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of redundant topology structures of delta network, it include: a kind of redundant topology structure of delta network, it is characterised by comprising: the first submodule, second submodule, third submodule, the first redundancy submodule, the second redundancy submodule, third redundancy submodule, the first switching switch, the second switching switch, third switching switch, the 4th switching switch, the 5th switching switch and the 6th switching switch；Redundancy submodule one end connects a phase phase line, and the other end is connect by switching switch with two adjacent submodules.A kind of redundant topology structure of delta network disclosed by the invention can effectively solve the redundancy requirement of phase where each redundancy submodule of the prior art is only able to satisfy it, the lower problem of redundancy submodule utilization rate.
Description
Technical field
The present invention relates to redundant topology structure field more particularly to a kind of redundant topology structures of delta network.
Background technique
Currently, power electronic technique be widely used to electric system hair, it is defeated, match, with each stage, be the following power grid
Develop important technology during upgrading.Power electronic equipment makes power grid become more efficiently controllable, becomes the application of electric energy more
While adding flexible, the potential problems of many aspects are also brought, equipment dependability is exactly one of them.
Compared to the conventional electric power equipment being made of ferromagnetic material and winding, power electronic equipment pressure resistance and through-flow receiving
Ability is weaker, and in certain high-power applications, needing in series and parallel could meet demand using multiple power electronic devices.
However in high-voltage and high-power power electronic equipment, since each component is potential fault point, therefore a large amount of power electronics
The use of device will cause declining to a great extent for equipment dependability.
When that can not further increase power electronic devices quality and reduce power electronic devices quantity, to guarantee equipment
Safe and reliable operation, it will usually increase redundant topology structure on the basis of rating requirements, make equipment in some components therefore
When barrier, can still it operate normally.
In the prior art, the redundant topology structure of delta network are as follows: by power electronics submodule and redundancy submodule into
Row series connection, obtains three series circuits, three series circuits is successively joined end to end, and each connected point is drawn, as
Three phase lines of three-phase electricity, when the power electronics submodule of a wherein phase breaks down, which is bypassed,
By the redundancy submodule access of corresponding phase, equipment is enable to continue to run.
The present inventor has found in the practice of the invention, and following technical problem exists in the prior art: each redundancy
Redundancy requirement of phase, redundancy submodule utilization rate are lower where submodule is only able to satisfy it.
Summary of the invention
The embodiment of the present invention provides a kind of redundant topology structure of delta network, and it is each superfluous to can effectively solve the prior art
Minor module is only capable of the redundancy requirement of phase where meeting it, the lower problem of redundancy submodule utilization rate.
The embodiment of the present invention one provides a kind of redundant topology structure of delta network, comprising: the first submodule, the second son
Module, third submodule, the first redundancy submodule, the second redundancy submodule, third redundancy submodule, the first switching switch, the
Two switching switches, third switching switch, the 4th switching switch, the 5th switching switch and the 6th switching switch；
It is opened respectively with the first non-moving end of the first switching switch, the second switching one end of first redundancy submodule
The first non-moving end closed and the connection of a phase phase line；The first redundancy submodule other end is switched with first switching respectively
The second non-moving end, second switching switch the second non-moving end connection；
It is opened respectively with the first non-moving end of third switching switch, the 4th switching one end of second redundancy submodule
The first non-moving end closed and the connection of b phase phase line；The second redundancy submodule other end switches with the third respectively to be switched
The second non-moving end, the 4th switching switch the second non-moving end connection；
It is opened respectively with the first non-moving end of the 5th switching switch, the 6th switching one end of the third redundancy submodule
The first non-moving end closed and the connection of c phase phase line；The third redundancy submodule other end is switched with the 5th switching respectively
The second non-moving end, the 6th switching switch the second non-moving end connection；
One end of first submodule is connect with the moved end of the first switching switch, the other end and the 6th switching
The moved end of switch connects；
One end of the second submodule is connect with the moved end of the second switching switch, and the other end and the third switch
The moved end of switch connects；
One end of the third submodule is connect with the moved end of the 4th switching switch, the other end and the 5th switching
The moved end of switch connects.
As an improvement of the above scheme, each switching switch is single-pole double-throw switch (SPDT).
As an improvement of the above scheme, each submodule is half-bridge structure；First submodule, second submodule and
Third submodule respectively includes half-bridge by-pass switch, and the half-bridge by-pass switch is connected in parallel on the both ends of lower switches pipe.
As an improvement of the above scheme, first submodule, second submodule and third submodule are full bridge structure, institute
It states the first submodule, second submodule and third submodule and respectively includes full-bridge by-pass switch, the two of the full-bridge by-pass switch
End is connected with the collector of two lower switches pipes respectively.
As an improvement of the above scheme, when normal work, the moved end of each switching switch is connected with the first non-moving end.
A kind of redundant topology structure of delta network provided in an embodiment of the present invention has such as compared with prior art
It is lower the utility model has the advantages that
It, can be by redundancy submodule when submodule being made to break down by setting redundancy submodule and each switching switch
It is connected into system, guarantees the normal operation of system；When Single Point of Faliure or same route generation multipoint fault occur for a plurality of route
When, the state of selection redundancy submodule line attachment can be switched by switching, so that redundancy submodule has access to adjacent phase
In any one phase, enable redundancy submodule be no longer limited to a certain phase, thus realize different phase redundancy submodules share, mention
The high utilization rate of redundancy submodule, and can more fully utilize redundancy submodule, thus improve equipment economy and
Reliability.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the redundant topology structure for delta network that the embodiment of the present invention one provides.
Fig. 2 is a kind of half-bridge knot of the submodule of the redundant topology structure for delta network that the embodiment of the present invention one provides
Structure schematic diagram.
Fig. 3 is a kind of full-bridge knot of the submodule of the redundant topology structure for delta network that the embodiment of the present invention one provides
Structure schematic diagram.
Fig. 4 is a kind of redundant topology knot for delta network that the embodiment of the present invention one provides in a concrete application scene
The schematic diagram of structure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is a kind of schematic diagram of the redundant topology structure for delta network that the embodiment of the present invention one provides, packet referring to Fig. 1
It includes: the first submodule, second submodule, third submodule, the first redundancy submodule, the second redundancy submodule, third redundancy
Module, the first switching switch, the second switching switch, third switching switch, the 4th switching switch, the 5th switching switch and the 6th are cut
Change switch；
One end of first redundancy submodule respectively with the first non-moving end S1 of the first switching switch, the second switching switch the
The connection of one non-moving end S3 and a phase phase line；The second non-moving end that the first redundancy submodule other end is switched with the first switching respectively
The second non-moving end S4 connection of S2, the second switching switch；
One end of second redundancy submodule respectively with the first non-moving end S5 of third switching switch, the 4th switching switch the
The connection of one non-moving end S7 and b phase phase line；The second non-moving end that the second redundancy submodule other end is switched with third switching respectively
The second non-moving end S8 connection of S6, the 4th switching switch；
One end of third redundancy submodule respectively with the first non-moving end S9 of the 5th switching switch, the 6th switching switch the
The connection of one non-moving end S11 and c phase phase line；The second non-moving end that the third redundancy submodule other end is switched with the 5th switching respectively
The second non-moving end S12 connection of S10, the 6th switching switch；
One end of first submodule is connect with the moved end of the first switching switch, and the moved end of the other end and the 6th switching switch connects
It connects；
One end of second submodule is connect with the moved end of the second switching switch, and the moved end of the other end and third switching switch connects
It connects；
One end of third submodule is connect with the moved end of the 4th switching switch, and the moved end of the other end and the 5th switching switch connects
It connects.
Further, each switching switch is single-pole double-throw switch (SPDT).
Further, each submodule is half-bridge structure；First submodule, second submodule and third submodule respectively include
Half-bridge by-pass switch is referring to fig. 2 a kind of submodule of the redundant topology structure for delta network that the embodiment of the present invention one provides
The half-bridge structure schematic diagram of block, half-bridge by-pass switch are connected in parallel on the both ends of lower switches pipe.
Further, the first submodule, second submodule and third submodule are full bridge structure, the first submodule, second
Submodule and third submodule respectively include full-bridge by-pass switch, are a kind of triangles that the embodiment of the present invention one provides referring to Fig. 3
The full bridge structure schematic diagram of the submodule of the redundant topology structure of shape circuit.The both ends of full-bridge by-pass switch respectively with two lower parts
The collector of switching tube is connected.
Further, when normal work, the moved end of each switching switch is connected with the first non-moving end.
In a specific application scenarios, a kind of redundant topology knot for delta network that the embodiment of the present invention one provides
Structure as shown in figure 4, one end is connected with the moved end of the first switching switch after submodule A, B and C series connection, open with the 6th switching by the other end
The moved end of pass is connected；One end is connect with the moved end of the second switching switch after submodule D, E and F series connection, and the other end and third switch
The moved end of switch is connected；One end is connect with the moved end of the 4th switching switch after submodule G, H and I series connection, and the other end is cut with the 5th
The moved end for changing switch is connected.
When each submodule normal work, S1 ', S3 ', S5 ', S7 ', S9 ' and the end S11 ' of each switching switch are in and close
Conjunction state；When group modules A breaks down, the corresponding by-pass switch closure of submodule A is bypassed submodule A, first is cut
The end S1 ' for changing switch disconnects, and the end S2 ' closure makes the first redundancy submodule access circuit, to guarantee the normal operation of system.
If submodule A and submodule F break down simultaneously, submodule A and the corresponding by-pass switch closure of submodule F make
Submodule A and submodule F are bypassed, and the S1 ' of the first switching switch is held and is disconnected, the end S2 ' closure, third switching switch
The end S5 ' disconnects, and the end S6 ' closure makes the first redundancy submodule and the second redundancy submodule access circuit, to guarantee in a plurality of route
Submodule simultaneously when breaking down, system can operate normally.
If submodule A and submodule B break down simultaneously, submodule A and the corresponding by-pass switch closure of submodule B make
Submodule A and submodule B are bypassed, and the S1 ' of the first switching switch is held and is disconnected, the end S2 ' closure, the 6th switching switch
The end S11 ' disconnects, and the end S12 ' closure makes the first redundancy submodule and third redundancy submodule access circuit, to guarantee in same line
When the multiple submodule on road breaks down, system can still be operated normally.
A kind of redundant topology structure of delta network provided in an embodiment of the present invention has such as compared with prior art
Lower beneficial effect
It, can be by redundancy submodule when submodule being made to break down by setting redundancy submodule and each switching switch
It is connected into system, guarantees the normal operation of system；When Single Point of Faliure or same route generation multipoint fault occur for a plurality of route
When, the state of selection redundancy submodule line attachment can be switched by switching, so that redundancy submodule has access to adjacent phase
In any one phase, enable redundancy submodule be no longer limited to a certain phase, thus realize different phase redundancy submodules share, mention
The high utilization rate of redundancy submodule, and can more fully utilize redundancy submodule, thus improve equipment economy and
Reliability.
It should be noted that the apparatus embodiments described above are merely exemplary, wherein described be used as separation unit
The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
It needs that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.In addition, device provided by the invention
In embodiment attached drawing, the connection relationship between module indicate between them have communication connection, specifically can be implemented as one or
A plurality of communication bus or signal wire.Those of ordinary skill in the art are without creative efforts, it can understand
And implement.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (5)
1. a kind of redundant topology structure of delta network characterized by comprising the first submodule, second submodule, third
Submodule, the first redundancy submodule, the second redundancy submodule, third redundancy submodule, the first switching switch, the second switching are opened
It closes, third switching switchs, the 4th switching switch, the 5th switching switch and the 6th switch switch；
One end of first redundancy submodule is switched with the first non-moving end of the first switching switch, the second switching respectively
First non-moving end and the connection of a phase phase line；The first redundancy submodule other end respectively with the first switching switch the
The second non-moving end connection of two non-moving ends, the second switching switch；
One end of second redundancy submodule is switched with the first non-moving end of third switching switch, the 4th switching respectively
First non-moving end and the connection of b phase phase line；The second redundancy submodule other end respectively with third switching switch the
The second non-moving end connection of two non-moving ends, the 4th switching switch；
One end of the third redundancy submodule is switched with the first non-moving end of the 5th switching switch, the 6th switching respectively
First non-moving end and the connection of c phase phase line；The third redundancy submodule other end respectively with the 5th switching switch the
The second non-moving end connection of two non-moving ends, the 6th switching switch；
One end of first submodule is connect with the moved end of the first switching switch, and the other end and the 6th switching switch
Moved end connection；
One end of the second submodule is connect with the moved end of the second switching switch, and the other end and third switching switch
Moved end connection；
One end of the third submodule is connect with the moved end of the 4th switching switch, and the other end and the 5th switching switch
Moved end connection.
2. a kind of redundant topology structure of delta network as described in claim 1, which is characterized in that each switching switch
For single-pole double-throw switch (SPDT).
3. a kind of redundant topology structure of delta network as described in claim 1, which is characterized in that each submodule is
Half-bridge structure；First submodule, second submodule and third submodule respectively include half-bridge by-pass switch, by the half-bridge
Way switch is connected in parallel on the both ends of lower switches pipe.
4. a kind of redundant topology structure of delta network as described in claim 1, which is characterized in that first submodule
Block, second submodule and third submodule are full bridge structure, first submodule, second submodule and third submodule difference
Including full-bridge by-pass switch, the both ends of the full-bridge by-pass switch are connected with the collector of two lower switches pipes respectively.
5. a kind of redundant topology structure of delta network as described in claim 1, which is characterized in that when normal work, institute
The moved end for stating each switching switch is connected with the first non-moving end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245868.2A CN109245285B (en) | 2018-10-25 | 2018-10-25 | Redundant topological structure of triangle circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245868.2A CN109245285B (en) | 2018-10-25 | 2018-10-25 | Redundant topological structure of triangle circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109245285A true CN109245285A (en) | 2019-01-18 |
| CN109245285B CN109245285B (en) | 2023-09-05 |
Family
ID=65081680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245868.2A Active CN109245285B (en) | 2018-10-25 | 2018-10-25 | Redundant topological structure of triangle circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109245285B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377235A (en) * | 2011-11-02 | 2012-03-14 | 东南大学 | Cascaded converter-based multifunctional high-speed switch device |
| CN103187724A (en) * | 2013-02-25 | 2013-07-03 | 国网智能电网研究院 | Redundancy control method for sub-modules of modularized multi-level flexible direct-current power transmission system |
| CN103227464A (en) * | 2013-03-22 | 2013-07-31 | 南京南瑞继保电气有限公司 | Submodule redundancy configuration method of flexible direct-current transmission control system |
| CN103248112A (en) * | 2013-04-12 | 2013-08-14 | 株洲变流技术国家工程研究中心有限公司 | Control and switch method for redundant submodules of modular multilevel converter |
| US9047075B1 (en) * | 2013-12-31 | 2015-06-02 | Victor K. J. Lee | Uninterruptable power supply system and method |
| CN105226973A (en) * | 2015-09-24 | 2016-01-06 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Submodule can be turned off and the modified model half-bridge MMC-HVDC topology of DC Line Fault can be excised |
| CN105515023A (en) * | 2014-10-20 | 2016-04-20 | 南京工业大学 | Novel cascade STATCOM converter unit fault-tolerant method |
| CN106711999A (en) * | 2016-12-12 | 2017-05-24 | 哈尔滨理工大学 | Modulation wave reconstruction based MMC-STATCOM fault processing device |
| US9812990B1 (en) * | 2016-09-26 | 2017-11-07 | Rockwell Automation Technologies, Inc. | Spare on demand power cells for modular multilevel power converter |
| CN107612408A (en) * | 2017-09-11 | 2018-01-19 | 广州智光电气股份有限公司 | A kind of energy accumulation current converter and energy-storage system |
| CN107769593A (en) * | 2017-10-17 | 2018-03-06 | 南方电网科学研究院有限责任公司 | A kind of power electronic equipment and its control method |
| CN108599183A (en) * | 2018-05-15 | 2018-09-28 | 南京理工大学 | Star chain type STATCOM based on auxiliary power unit and control method |
-
2018
- 2018-10-25 CN CN201811245868.2A patent/CN109245285B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377235A (en) * | 2011-11-02 | 2012-03-14 | 东南大学 | Cascaded converter-based multifunctional high-speed switch device |
| CN103187724A (en) * | 2013-02-25 | 2013-07-03 | 国网智能电网研究院 | Redundancy control method for sub-modules of modularized multi-level flexible direct-current power transmission system |
| CN103227464A (en) * | 2013-03-22 | 2013-07-31 | 南京南瑞继保电气有限公司 | Submodule redundancy configuration method of flexible direct-current transmission control system |
| CN103248112A (en) * | 2013-04-12 | 2013-08-14 | 株洲变流技术国家工程研究中心有限公司 | Control and switch method for redundant submodules of modular multilevel converter |
| US9047075B1 (en) * | 2013-12-31 | 2015-06-02 | Victor K. J. Lee | Uninterruptable power supply system and method |
| CN105515023A (en) * | 2014-10-20 | 2016-04-20 | 南京工业大学 | Novel cascade STATCOM converter unit fault-tolerant method |
| CN105226973A (en) * | 2015-09-24 | 2016-01-06 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Submodule can be turned off and the modified model half-bridge MMC-HVDC topology of DC Line Fault can be excised |
| US9812990B1 (en) * | 2016-09-26 | 2017-11-07 | Rockwell Automation Technologies, Inc. | Spare on demand power cells for modular multilevel power converter |
| CN106711999A (en) * | 2016-12-12 | 2017-05-24 | 哈尔滨理工大学 | Modulation wave reconstruction based MMC-STATCOM fault processing device |
| CN107612408A (en) * | 2017-09-11 | 2018-01-19 | 广州智光电气股份有限公司 | A kind of energy accumulation current converter and energy-storage system |
| CN107769593A (en) * | 2017-10-17 | 2018-03-06 | 南方电网科学研究院有限责任公司 | A kind of power electronic equipment and its control method |
| CN108599183A (en) * | 2018-05-15 | 2018-09-28 | 南京理工大学 | Star chain type STATCOM based on auxiliary power unit and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109245285B (en) | 2023-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10756535B2 (en) | Combined direct current circuit breaker and application method thereof | |
| CN106602504B (en) | A kind of photovoltaic Quick shut-off device and photovoltaic system | |
| CN103972855B (en) | A kind of device making circuit bidirectional current disjunction and control method thereof | |
| KR102007625B1 (en) | Reconfigurable MMC Submodule Unit and its Control Unit | |
| CN103972875B (en) | Limit line current or make device and the control method thereof of electric current disjunction | |
| CN106786713B (en) | A kind of voltage source converter unit topological structure and control method | |
| CN105720552B (en) | A kind of current-limiting type high voltage DC breaker | |
| CN208433908U (en) | Voltage source converter module and inverter | |
| CN106786349A (en) | A kind of assist exchanging circuit module and high voltage DC breaker | |
| CN110460024A (en) | A kind of DC grid trend controllable type multiport dc circuit breaker and its control method | |
| CN103971965B (en) | A kind of device and control method thereof making line current disjunction | |
| CN104980137A (en) | Forced current conversion type all-solid-state high-speed DC circuit breaker and current conversion switch | |
| CN112865040A (en) | Multi-port direct current circuit breaker and control method thereof | |
| CN107615431A (en) | Bidirectional power valve, the control method for it and use its mixing multiterminal HVDC system | |
| CN105958806A (en) | High-voltage sub-module based on MMC circuit topology | |
| CN107749615B (en) | It is a kind of based on the dc circuit breaker for sealing in capacitor and its DC Line Fault processing strategie | |
| CN107370130B (en) | A kind of hybrid high voltage DC breaker and its control strategy based on modified half-bridge submodule | |
| CN106998151A (en) | Multilevel converter based on asymmetric Shuangzi module and half-bridge submodule | |
| CN106533145B (en) | A kind of high voltage DC breaker | |
| CN109450265A (en) | A kind of multimode redundancy structure of cascaded H-bridges Three-phase electronic power transformer | |
| CN112865046A (en) | Multifunctional multiport hybrid direct current breaker and control method | |
| CN108011389A (en) | A kind of compound direct current transmission facility | |
| CN209056973U (en) | A kind of redundant topology structure of delta network | |
| CN106953530A (en) | The collocation method of the asymmetric Shuangzi modules of mixed type MMC and half-bridge submodule | |
| CN105896477A (en) | Ground protection method of modular multilevel converter and modular multilevel converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |