CN106711992A - Permanent-magnet DC fan cluster system topological structure - Google Patents
Permanent-magnet DC fan cluster system topological structure Download PDFInfo
- Publication number
- CN106711992A CN106711992A CN201611270840.5A CN201611270840A CN106711992A CN 106711992 A CN106711992 A CN 106711992A CN 201611270840 A CN201611270840 A CN 201611270840A CN 106711992 A CN106711992 A CN 106711992A
- Authority
- CN
- China
- Prior art keywords
- parallel
- magnetic
- voltage
- fan
- winding
- 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
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 100
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010292 electrical insulation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005405 multipole Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
-
- H02J3/386—
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention provides a permanent-magnet DC fan cluster system topological structure, which comprises a plurality of permanent-magnet DC fan parallel branches, wherein each permanent-magnet DC fan parallel branch comprises a plurality of permanent magnet DC fan assemblies connected in parallel. The plurality of permanent-magnet DC fan parallel branches are connected in parallel to form a close-loop structure. Each permanent magnet DC fan assembly outputs a high-voltage direct current. The close-loop structure is provided with a high-voltage DC convergence point. For the defects of complex DC fan series-parallel control and difficult fault processing, magnetic-integration high-frequency transformers and high-frequency high-voltage rectifiers are utilized to solve the problems of high-voltage direct current generated by each DC fan, the multi-fan cluster system topological structure and fault tolerance, thereby preventing the problem of extra electrical insulation due to series connection of the DC fans, and overcoming the problem of fan power distribution and complex voltage stability control due to different wind speeds or fault.
Description
Technical field
The present invention relates to DC fan technical field, especially a kind of DC blower fan group system topological structure, tool
Body ground, is a kind of conversion of low pressure multimode type multiphase permanent magnet generator modular electric energy HVDC blower fan and its HVDC cluster
System architecture.
Background technology
Marine wind field than ac transmission advantageously, various marine wind electric field direct current wind is proposed for this using direct current transportation
Series-parallel machine structure.
Existing marine wind electric field, generally using multiple DC fan cascaded structures, as shown in Figure 1.This structure is usual
In the presence of following defect：
1st, DC fan is connected and causes the electrically pressure-resistant rising that is directly proportional with blower fan number of connecting of each DC fan, for generating
Machine and power inverter electric insulation propose requirement higher.
2nd, DC fan is because wind speed profile is uneven and the limitation of series arm electric current identical so that each direct current in series arm
Fan outlet voltage needs adjustment, to meet total voltage balance and power transmission, causes control system complicated and difficult, Er Qiecun
In wind-abandoning phenomenon, the utilization of wind resource is reduced.
Currently without the explanation or report that find technology similar to the present invention, money similar both at home and abroad is also not yet collected into
Material.
The content of the invention
For drawbacks described above present in prior art, it is an object of the invention to provide a kind of DC blower fan cluster system
System topological structure, the DC blower fan group system topological structure ensures each DC fan independence, and output voltage is identical, looped network
Structural reliability is high, and DC fan internal mode blocking structure simplifies the complexity of electrical control, low voltage permanent magnetic synchronous generator
Need not additionally increase insulating requirements with power inverter, efficiently solve the problems that connection in series-parallel DC fan brings.
To achieve the above object, the present invention is achieved by the following technical solutions：
A kind of DC blower fan group system topological structure, including a plurality of DC fan parallel-connection branch road, wherein often
One DC fan parallel-connection branch road includes many DC fan assemblies being connected in parallel, a plurality of DC blower fan
Composition closed loop configuration is connected in parallel between parallel branch；The each DC fan assembly exports HVDC, institute
State closed loop configuration and be provided with HVDC convergent point.
Preferably, each DC fan assembly includes：The wind energy conversion system and DC wind of interconnection
Machine；The DC blower fan include be sequentially connected magneto alternator, AC/DC rectifiers, DC/AC high-frequency inverters,
The integrated high frequency transformer of AC/AC magnetic and AC/DC high-frequency and high-voltage rectifiers.
Preferably, the magneto alternator is provided with N phase windings, and the AC/DC rectifiers include relative with N phase windings
The N number of unidirectional controlled rectifier module answered, the DC/AC high-frequency inverters include relative with N number of unidirectional controlled rectifier module
The N number of two-way inverter module answered, the integrated high frequency transformer of AC/AC magnetic is provided with corresponding with N number of two-way inverter module
N number of low pressure winding end and 1 high pressure winding terminal；Wherein：
Two output ends of each phase winding of the magneto alternator are corresponding with one unidirectional controllable whole respectively
Flow the input connection of device module, the output end two-way inversion corresponding with respectively of each unidirectional controlled rectifier module
The input connection of device module, low pressure winding end corresponding with connects the output end of each two-way inverter module respectively
Connect, the integrated AC for sharing 1 high pressure winding terminal, high pressure winding terminal and AC/DC high-frequency and high-voltage rectifiers in N number of low pressure winding end
Connection.
Preferably, the magneto alternator includes 8 armature modules, and each of which armature module is 3 phases, often
One is mutually equipped with 1 winding, altogether 24 windings, and each of which winding includes 12 series coils.
Preferably, the unidirectional controlled rectifier module includes：Uncontrollable device D1n, uncontrollable device D2n, uncontrollable device
Part D3n, uncontrollable device D4n, controllable devices S1n, controllable devices S2nWith filter condenser C1n, the uncontrollable device D1n~D4n
It is in parallel after connecting two-by-two to constitute H bridges a, the controllable devices S1nWith controllable devices S2nTwo lower bridge arms respectively with H bridges a are in parallel,
The filter condenser C1nOutput end with H bridges a is in parallel, two output ends of each phase winding of the magneto alternator
It is connected in two series arms for constituting H bridges a, the filter condenser C1nInput as two-way inverter module is straight
Stream power supply is in parallel with the input of two-way inverter module.
Preferably, the two-way inverter module includes：Uncontrollable device D5n, uncontrollable device D6n, uncontrollable device
D7n, uncontrollable device D8n, controllable devices S3n, controllable devices S4n, controllable devices S5n, controllable devices S6n, exit LWn1And extraction
End LWn2, the uncontrollable device D5n~D8nIt is in parallel after connecting two-by-two to constitute H bridges b, the controllable devices S3n~S6nRespectively with not
Controllable devices D5n~D8nIt is in parallel；The exit LWn1With exit LWn2It is connected to two series arms for constituting H bridges b
On, exit LWn1With exit LWn2Terminals of the output end respectively with low pressure winding end be connected.
Preferably, the integrated high frequency transformer of AC/AC magnetic includes N number of low pressure winding, N number of iron core and 1 high pressure winding,
N number of low pressure winding is wound on N number of iron core respectively, forms N number of low pressure winding end, and integrated shared 1 of N number of iron core is high
Pressure winding, forms 1 high pressure winding terminal；
Each iron core includes that even number can be separated magnetic core, and the separable magnetic core of even number is according to axial symmetry space arrangement；
Wherein, the separable magnetic core of even number is divided into the magnetic core and the magnetic core that Open Side Down, the magnetic-core arranging of opening upwards of opening upwards
Fixed, the high-tension coil for constituting high pressure winding is sleeved in the middle of the magnetic core of opening upwards on the integrated magnetic core post of magnetic, constitutes low pressure
The low-voltage coil of winding is sleeved on around the magnetic core that Open Side Down on each magnetic core, and the magnetic core that Open Side Down is placed on opening upwards
Magnetic core on.
Preferably, the terminals of low-voltage coil are drawn from the side of the integrated high frequency transformer of AC/AC magnetic, and high-tension coil goes out
Line end is drawn from the middle of the integrated high frequency transformer of AC/AC magnetic.
Preferably, the iron core also includes bottom insulation pressure strip and upper portion insulating pressure strip, and the bottom insulation is compressed
Plate and upper portion insulating pressure strip are arranged between the magnetic core of opening upwards and the magnetic core that Open Side Down.
Preferably, the AC/DC high-frequency and high-voltages rectifier includes uncontrollable device D1, uncontrollable device D2, uncontrollable device
D3, uncontrollable device D4, uncontrollable device D5, uncontrollable device D6, controllable devices S1, controllable devices S2With high-voltage filtering capacitor device
CHv, the uncontrollable device D1~D4It is in parallel after connecting two-by-two to constitute H bridges c, the uncontrollable device D5With uncontrollable device D6Point
Not with controllable devices S1With controllable devices S2Inverse parallel after series connection, forms the AC of AC/DC high-frequency and high-voltage rectifiers, the friendship
The input for flowing side is connected with two leading-out terminals of high pressure winding terminal, and the output end of the AC is connected to composition H bridges c
Two series arms on, two of H bridges c output direct currents termination high-voltage filtering capacitor device CHVTwo ends.
The present invention provide DC blower fan group system topological structure, using any number of phases and number of modules low pressure forever
Magnetism type wind driven generator (magneto alternator), modularization winding controlled rectifier (AC/DC rectifiers), modularization DC/AC are high
Frequency inverter (DC/AC high-frequency inverters), the integrated high frequency transformer of magnetic (the integrated high frequency transformer of AC/AC magnetic), high-frequency and high-voltage can
Control rectifier (AC/DC high-frequency and high-voltages rectifier), constitutes DC fan assembly.
The DC blower fan group system topological structure that the present invention is provided, each DC fan assembly exports straightening high
Stream is in parallel, and some DC fan assemblies constitute a DC fan parallel-connection branch road, and a plurality of DC blower fan is simultaneously
Connection branch road forms radially converging topological structure, and end is formed into closed loop configuration.Each DC fan assembly is independent, voltage
Unanimously, it is to avoid series direct current blower fan needs to increase the extra insulation requirement of electric stress levels.Any DC wind
Thermomechanical components break down, the operation that can be cut off without influenceing other units from system, increased the reliability of system.
The DC blower fan group system topological structure that the present invention is provided, using modularization low-tension magneto
PMSG, the unidirectional controlled rectifier of each module, each DC Module DC/AC high-frequency inverters, the integrated high frequency transformer of independent magnetic circuit, height
Frequency high pressure controlled rectifier, its mesohigh is isolated with low-voltage electrical, and magneto low-voltage insulation material thickness is thin, can be improved scattered
Thermal effect；Each direct current branch independence, the integrated high frequency transformer of independent magnetic circuit can be by magnetic circuit sectional area and the side of coil turn two
Face forms no-load voltage ratio boosting high；Controlled rectification can both realize Power Control, and can simplify the control of system high pressure side.
Compared with prior art, the present invention has following beneficial effect：
First, for the complexity of connection in series-parallel DC fan control, solve independence and the output of DC fan control
The uniformity of HVDC.
Second, magneto alternator multipole, low speed, low pressure, multimode and multiphase independent magnetic circuit structure solve wind-force
Machine and the direct mechanical couplings of generator, eliminate the failure problems that gear-box brings, and are modular power conversion and faults-tolerant control
Create advantage.
3rd, each phase winding of magneto alternator individually constitutes power and becomes with controlled rectifier, filtering, two-way inversion
Change so that winding control increased independence, the enhancing of winding failure fault-tolerant ability.
4th, the integrated high frequency transformer of magnetic is doubled by magnetic circuit sectional area and high-low pressure umber of turn doubles realizes that voltage is double
Double again, solve general booster circuit and the altogether restricted problem of magnetic circuit step-up ratio.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is traditional connection in series-parallel DC fan cluster topology structural representation；
Fig. 2 is DC blower fan group system topological structure schematic diagram of the present invention；
Fig. 3 is DC fan assembly structured flowchart of the present invention；
Fig. 4 is AC/DC rectifier structures schematic diagram of the present invention；
Fig. 5 is DC/AC high-frequency inverters structural representation of the present invention；
Fig. 6 is the integrated high-frequency transformer structure schematic diagram of AC/AC magnetic of the present invention；
Fig. 7 is AC/DC high-frequency and high-voltages rectifier structure schematic diagram of the present invention.
Specific embodiment
Embodiments of the invention are elaborated below：The present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed implementation method and specific operating process.It should be pointed out that to one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Shield scope.
Embodiment
The DC blower fan group system topological structure schematic diagram that Fig. 2 is provided for the present embodiment, Fig. 3 is carried for the present embodiment
The DC fan assembly structured flowchart of confession.
Wherein：
The DC blower fan group system topological structure that the present embodiment is provided, including a plurality of DC fan parallel-connection branch
Road, each of which DC fan parallel-connection branch road include many DC fan assemblies being connected in parallel, it is a plurality of forever
Composition closed loop configuration is connected in parallel between magnetic DC fan parallel branch；The each DC fan assembly exports height
Straightening stream, the closed loop configuration is provided with HVDC convergent point.
Further, each DC fan assembly includes：The wind energy conversion system and DC of interconnection
Blower fan；The DC blower fan includes the magneto alternator, AC/DC rectifiers, the DC/AC high-frequency inversions that are sequentially connected
Device, the integrated high frequency transformer of AC/AC magnetic and AC/DC high-frequency and high-voltage rectifiers.
Further, the magneto alternator is provided with N phase windings, and the AC/DC rectifiers include and N phase winding phases
Corresponding N number of unidirectional controlled rectifier module, the DC/AC high-frequency inverters include and N number of unidirectional controlled rectifier module phase
Corresponding N number of two-way inverter module, the integrated high frequency transformer of AC/AC magnetic is provided with relative with N number of two-way inverter module
The N number of low pressure winding end answered and 1 high pressure winding terminal；Wherein：
Two output ends of each phase winding of the magneto alternator are corresponding with one unidirectional controllable whole respectively
Flow the input connection of device module, the output end two-way inversion corresponding with respectively of each unidirectional controlled rectifier module
The input connection of device module, low pressure winding end corresponding with connects the output end of each two-way inverter module respectively
Connect, the integrated AC for sharing 1 high pressure winding terminal, high pressure winding terminal and AC/DC high-frequency and high-voltage rectifiers in N number of low pressure winding end
Connection.
Further, the magneto alternator includes 8 armature modules, and each of which armature module is 3 phases,
Each phase is equipped with 1 winding, altogether 24 windings, and each of which winding includes 12 series coils.
Further, the unidirectional controlled rectifier module includes：Uncontrollable device D1n, uncontrollable device D2n, it is uncontrollable
Device D3n, uncontrollable device D4n, controllable devices S1n, controllable devices S2nWith filter condenser C1n, the uncontrollable device D1n~
D4nIt is in parallel after connecting two-by-two to constitute H bridges a, the controllable devices S1nWith controllable devices S2nRespectively with two lower bridge arms of H bridges a simultaneously
Connection, the filter condenser C1nOutput end with H bridges a is in parallel, and two of each phase winding of the magneto alternator are defeated
Go out end to be connected in two series arms for constituting H bridges a, the filter condenser C1nAs the defeated of two-way inverter module
Enter dc source in parallel with the input of two-way inverter module.
Further, the two-way inverter module includes：Uncontrollable device D5n, uncontrollable device D6n, uncontrollable device
D7n, uncontrollable device D8n, controllable devices S3n, controllable devices S4n, controllable devices S5n, controllable devices S6n, exit LWn1And extraction
End LWn2, the uncontrollable device D5n~D8nIt is in parallel after connecting two-by-two to constitute H bridges b, the controllable devices S3n~S6nRespectively with not
Controllable devices D5n~D8nIt is in parallel；The exit LWn1With exit LWn2It is connected to two series arms for constituting H bridges b
On, exit LWn1With exit LWn2Terminals of the output end respectively with low pressure winding end be connected.
Further, the integrated high frequency transformer of AC/AC magnetic includes N number of low pressure winding, N number of iron core and 1 high voltage winding
Group, N number of low pressure winding is wound on N number of iron core respectively, forms N number of low pressure winding end, N number of iron core integrated shared 1
Individual high pressure winding, forms 1 high pressure winding terminal；
Each iron core includes that even number can be separated magnetic core, and the separable magnetic core of even number is according to axial symmetry space arrangement；
Wherein, the separable magnetic core of even number is divided into the magnetic core and the magnetic core that Open Side Down, the magnetic-core arranging of opening upwards of opening upwards
Fixed, the high-tension coil for constituting high pressure winding is sleeved in the middle of the magnetic core of opening upwards on the integrated magnetic core post of magnetic, constitutes low pressure
The low-voltage coil of winding is sleeved on around the magnetic core that Open Side Down on each magnetic core, and the magnetic core that Open Side Down is placed on opening upwards
Magnetic core on.
Further, the terminals of low-voltage coil are drawn from the side of the integrated high frequency transformer of AC/AC magnetic, high-tension coil
Leading-out terminal is drawn from the middle of the integrated high frequency transformer of AC/AC magnetic.
Further, the iron core also includes bottom insulation pressure strip and upper portion insulating pressure strip, the bottom insulation pressure
Tight plate and upper portion insulating pressure strip are arranged between the magnetic core of opening upwards and the magnetic core that Open Side Down.
Further, the AC/DC high-frequency and high-voltages rectifier includes uncontrollable device D1, uncontrollable device D2, uncontrollable device
Part D3, uncontrollable device D4, uncontrollable device D5, uncontrollable device D6, controllable devices S1, controllable devices S2And high-voltage filtering capacitor
Device CHV, the uncontrollable device D1~D4It is in parallel after connecting two-by-two to constitute H bridges c, the uncontrollable device D5With uncontrollable device D6
Respectively with controllable devices S1With controllable devices S2Inverse parallel after series connection, forms the AC of AC/DC high-frequency and high-voltage rectifiers, described
The input of AC is connected with the leading-out terminal HW1 and leading-out terminal HW2 of high pressure winding terminal, and the output end of the AC connects respectively
It is connected in two series arms for constituting H bridges c, the output DC terminal HV of H bridges c1nWith output DC terminal HV2nConnect hv filtering electricity
Container CHVTwo ends.
In the present embodiment：
DC blower fan group system topological structure, HVDC is exported using every DC fan assembly, if
Dry platform is simultaneously unified into a branch road, and some branch circuit parallel connections constitute cyclic structure, and a HVDC convergent point is chosen on ring,
The convergent point can be DC converter station or direct current transportation end.
DC fan assembly independent control, output DC voltage is identical, and power determines according to wind resource utilization rate,
Its loop network structure can improve the utilization rate of wind-resources and strengthen the reliability of power supply, even if there is DC fan failure,
As long as cutting off the blower fan without influenceing other blower fans and transmission voltage.
The DC fan assembly include be connected with each other wind energy conversion system and DC blower fan (including permanent-magnet synchronous hair
Motor (PMSG), AC/DC rectifiers, DC/AC high-frequency inverters, the integrated high frequency transformer of AC/AC magnetic, AC/DC high-frequency and high-voltages are whole
Stream device), magneto alternator output low-voltage alternating-current is transformed to HVDC, and each winding of magneto alternator is electrically exhausted
Edge keeps low-voltage state, middle by multichannel low-voltage direct, high-frequency ac, the boosting of high frequency magnetic integrated transformer and high-frequency rectification
Realize that HVDC is exported.
The magneto alternator is multipole low speed WECS direct drive low pressure, multimode, heterogeneous structure, each mould
Block contains the identical number of phases, and relatively independent per phase magnetic circuit, circuit and magnetic circuit between module and module, between phase and phase are that do not have independently
Have what is intercoupled.
The magneto alternator is per phase winding (exit L1n、L2n) unidirectional controllable whole using an independent power
Flow module, as shown in figure 3, rectification module includes four uncontrollable device (D1n~D4n) the H bridges that constitute, and two lower bridge arms
(D3nAnd D4n) difference controllable devices (S in parallel1nAnd S2n) so that winding current can be with two-way controllable, using winding own inductance
Composition AC/DC boosting rectification modules, output-parallel filter condenser C1nStable DC voltage.Because multimode, multi-phase permanent are same
Step generator has N number of winding, therefore has N number of rectifier module.
Unidirectional controlled rectifier module (hereinafter referred to as rectification module) the output DC voltage is two-way inverse by two-way H bridges
Become device module (hereinafter referred to as inverter module), as shown in figure 4, the inverter module includes four uncontrollable device (D5n~
D8n) and controllable devices (S connected in parallel3n~S6n) constitute, controlled output square-wave voltage (exit LWn1、LWn2), the square wave
Control source high frequency transformer low-voltage coil (LWn).Due to have N number of rectification module, therefore have N number of independent inversion module and
The N number of independent integrated high frequency transformer of AC/AC magnetic (hereinafter referred to as high frequency transformer) low-voltage coil.When DC blower interior
Magneto alternator winding breaks down when needing to cut off the winding working condition, and one side AC/DC rectifiers side disconnects, separately
On the one hand bridge arm controllable devices S under two-way inverter module4nAnd S6nConducting makes corresponding in the integrated high frequency transformer of AC/AC magnetic
Low-voltage coil (composition low pressure winding) short circuit, eliminates the magnetic circuit magnetic flux, while high-tension coil (structure when avoiding low-voltage coil from opening a way
Into high pressure winding) excitation counter magnetic flux causes high-voltage invasion low-voltage circuit.Other windings of magneto alternator and system can
With normal work.When failure is serious, HVDC side and direct current network can be disconnected, whole DC blower fan breaks with power network
Open.
Each low pressure winding magnetic circuit of high frequency transformer is separate, integrated so that each low pressure winding and high voltage winding by magnetic
Group coupling, as shown in figure 5, each two-way inverter module output voltage in front end is in each low pressure winding (LW1~LWN) magnetic circuit causes
Magnetic flux strengthens by the integrated superposition of magnetic so that the magnetic flux after magnetic is integrated doubles in high pressure winding side (HW), so by magnetic
Flux doubles and high frequency transformer high and low pressure umber of turn produces high voltage than multiplication collective effect.
The high frequency transformer exports (exit HW1、HW2) high pressure AC/DC boostings are constituted by controllable high-voltage rectification,
By high-voltage filtering capacitor device CHVThe high-voltage dc voltage of stabilization is filtered into, as shown in Figure 6.The AC/DC high-frequency and high-voltages rectification
Device uses four uncontrollable device (D1~D4) constitute H bridge arms, centre the two-way control of electric current is realized according to high-tension coil polarity of voltage
AC/DC booster circuits (the inverse parallel S of system1And D5, S2And D6)。
The DC blower fan group system topological structure that the present embodiment is provided, using DC fan assembly parallel connection structure
Into multiloop annular group system topological structure, the reliability of system is improve.
Below so that magneto alternator is provided with 24 windings as an example, it is described in detail below：
Magneto alternator 5MW, rotating speed 10rpm, 280 poles are divided into 8 armature modules, each phase of armature module 3, often
One is mutually equipped with a winding, i.e., 24 windings, the 12 coil series connection of each winding, winding voltage 960V.Every DC
Fan assembly has 24 AC/DC rectifier modules as shown in Figure 4,24 two-way inverter modules as shown in Figure 5,24
The low pressure winding and iron core of the integrated high frequency transformer of AC/AC magnetic, each iron core are made up of the separable magnetic core of even number, 24 iron cores
It is integrated share 1 high pressure winding, the integrated high frequency transformer high and low pressure winding schematic diagram of AC/AC magnetic as shown in fig. 6, and 1 such as
AC/DC high-frequency and high-voltage rectifiers shown in Fig. 7.
Two leading-out terminal (L of each winding of magneto alternator1nAnd L2n) with corresponding unidirectional controlled rectifier module
Input is connected, and each unidirectional controlled rectifier module output end is parallel with filter condenser C1nVoltage stabilizing, filter condenser C1n
Simultaneously as the input DC power of two-way inverter module, output ac square wave and the AC/AC magnetic collection of two-way inverter module
Into low-voltage coil (composition low pressure winding) terminals (LW of high frequency transformern1And LWn2) connection, the integrated high frequency transformation of AC/AC magnetic
High-tension coil (constituting high pressure winding) leading-out terminal (HW of device1And HW2) be connected with the AC of AC/DC high-frequency and high-voltage rectifiers,
AC/DC high-frequency and high-voltages rectifier output DC terminal (HV1nAnd HV2n) it is connected to high-voltage filtering capacitor device CHV。
The separable magnetic core of the integrated high frequency transformer of AC/AC magnetic according to axial symmetry space arrangement, magnetic core opening upwards or to
Under, after the magnetic-core arranging of opening upwards is fixed, bottom insulation pressure strip is placed, the high-tension coil of tape insulation is sleeved on centre
On magnetic integrated core post, each low-voltage coil of tape insulation is sleeved on respective magnetic core around, places upper portion insulating pressure strip,
The magnetic core that Open Side Down is placed on the magnetic core of opening upwards again, finally fixes the magnetic core that Open Side Down, low-voltage coil from
The integrated high frequency transformer side of AC/AC magnetic is drawn, and high-tension coil is drawn from the middle of the integrated high frequency transformer of AC/AC magnetic.
The present embodiment provide DC blower fan group system topological structure, including any number of phases and number of modules low pressure
Permanent-magnetic wind driven generator, modularization winding controlled rectifier, modularization DC/AC high-frequency inverters, the integrated high frequency transformer of magnetic, height
The DC blower fan of frequency high pressure controlled rectifier composition, and DC fan cluster topology structure.
DC blower fan group system topological structure is as shown in Fig. 2 each DC fan assembly output HVDC
Parallel connection, some DC fan assemblies constitute a branch roads, and a plurality of branch road forms radially converging topological structure, and by end
End is in parallel to form multiloop loop configuration.Each DC fan independent control, DC voltage be consistent, it is to avoid series direct current blower fan is needed
Additionally to increase the insulating requirements of electric stress levels.Any DC fan breaks down can be from system excision without shadow
The operation of other units is rung, the reliability of system is increased.
Every structure of block diagram of DC blower fan is as shown in figure 3, including modularization low-tension magneto PMSG, each mould
The unidirectional controlled rectifier of block (unidirectional controlled rectifier module), each DC Module DC/AC high-frequency inverters (two-way inverter mould
Block), the integrated high frequency transformer of independent magnetic circuit (the integrated high frequency transformer of AC/AC magnetic), (AC/DC is high for high-frequency and high-voltage controlled rectifier
Frequency high-voltage rectifier).High pressure is isolated with low-voltage electrical, and magneto alternator low-voltage insulation material thickness is thin, can improve radiating
Effect.Each direct current branch independence, the integrated high frequency transformer of magnetic can form high by magnetic circuit sectional area and the aspect of coil turn two
Voltage ratio is boosted.Controlled rectification can both realize Power Control, and can simplify the control of system high pressure side.
To sum up, the present embodiment controls complicated, the difficult defect of troubleshooting for DC fan connection in series-parallel, integrated using magnetic
High frequency transformer and high-frequency and high-voltage rectifier solve DC fan produce HVDC, multi fan group system topological structure and
Failure tolerant, it is to avoid because of the additional electrical Insulation Problems that DC fan series connection causes, overcomes because wind speed is different or failure is drawn
The power of fan distribution for rising and complicated Voltage Stability Control.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (10)
1. a kind of DC blower fan group system topological structure, it is characterised in that including a plurality of DC fan parallel-connection branch
Road, each of which DC fan parallel-connection branch road include many DC fan assemblies being connected in parallel, it is a plurality of forever
Composition closed loop configuration is connected in parallel between magnetic DC fan parallel branch；The each DC fan assembly exports height
Straightening stream, the closed loop configuration is provided with HVDC convergent point.
2. DC blower fan group system topological structure according to claim 1, it is characterised in that described in each forever
Magnetic DC fan component includes：The wind energy conversion system and DC blower fan of interconnection；The DC blower fan is included successively
The magneto alternator of connection, AC/DC rectifiers, DC/AC high-frequency inverters, the integrated high frequency transformer of AC/AC magnetic and AC/DC
High-frequency and high-voltage rectifier.
3. DC blower fan group system topological structure according to claim 2, it is characterised in that the permanent-magnet synchronous
Generator is provided with N phase windings, and the AC/DC rectifiers include the N number of unidirectional controlled rectifier module corresponding with N phase windings,
The DC/AC high-frequency inverters include the N number of two-way inverter module corresponding with N number of unidirectional controlled rectifier module, described
The integrated high frequency transformer of AC/AC magnetic is provided with N number of low pressure winding end and 1 high voltage winding corresponding with N number of two-way inverter module
Group end；Wherein：
Two output ends of each phase winding of the magneto alternator unidirectional controlled rectifier corresponding with respectively
The input connection of module, the output end of each unidirectional controlled rectifier module two-way inverter mould corresponding with respectively
The input connection of block, the output end low pressure winding end connection corresponding with respectively of each two-way inverter module is N number of
Low pressure winding end is integrated to share 1 high pressure winding terminal, and high pressure winding terminal is connected with the AC of AC/DC high-frequency and high-voltage rectifiers.
4. DC blower fan group system topological structure according to claim 3, it is characterised in that the permanent-magnet synchronous
Generator includes 8 armature modules, and each of which armature module is 3 phases, and each phase is equipped with 1 winding, 24 altogether
Winding, each of which winding includes 12 series coils.
5. DC blower fan group system topological structure according to claim 3, it is characterised in that described unidirectional controllable
Rectifier module includes：Uncontrollable device D1n, uncontrollable device D2n, uncontrollable device D3n, uncontrollable device D4n, controllable devices
S1n, controllable devices S2nWith filter condenser C1n, the uncontrollable device D1n~D4nComposition H bridges a in parallel, described after connecting two-by-two
Controllable devices S1nWith controllable devices S2nTwo lower bridge arms respectively with H bridges a are in parallel, the filter condenser C1nIt is defeated with H bridges a
Go out end parallel connection, two output ends of each phase winding of the magneto alternator are connected to two strings for constituting H bridges a
On connection branch road, the filter condenser C1nInput DC power as two-way inverter module is defeated with two-way inverter module
Enter end in parallel.
6. DC blower fan group system topological structure according to claim 3, it is characterised in that the two-way inversion
Device module includes：Uncontrollable device D5n, uncontrollable device D6n, uncontrollable device D7n, uncontrollable device D8n, controllable devices S3n、
Controllable devices S4n, controllable devices S5n, controllable devices S6n, exit LWn1With exit LWn2, the uncontrollable device D5n~D8n
It is in parallel after connecting two-by-two to constitute H bridges b, the controllable devices S3n~S6nRespectively with uncontrollable device D5n~D8nIt is in parallel；The extraction
End LWn1With exit LWn2It is connected in two series arms for constituting H bridges b, exit LWn1With exit LWn2It is defeated
Go out terminals of the end respectively with low pressure winding end to be connected.
7. DC blower fan group system topological structure according to claim 3, it is characterised in that the AC/AC magnetic
Integrated high frequency transformer includes N number of low pressure winding, N number of iron core and 1 high pressure winding, and N number of low pressure winding is wound in N respectively
On individual iron core, N number of low pressure winding end is formed, N number of iron core is integrated to share 1 high pressure winding, forms 1 high pressure winding terminal；
Each iron core includes that even number can be separated magnetic core, and the separable magnetic core of even number is according to axial symmetry space arrangement；Wherein,
The separable magnetic core of even number is divided into the magnetic core and the magnetic core that Open Side Down of opening upwards, and the magnetic-core arranging of opening upwards is fixed,
The high-tension coil for constituting high pressure winding is sleeved in the middle of the magnetic core of opening upwards on the integrated magnetic core post of magnetic, constitutes low pressure winding
Low-voltage coil is sleeved on around the magnetic core that Open Side Down on each magnetic core, and the magnetic core that Open Side Down is placed on the magnetic core of opening upwards
On.
8. DC blower fan group system topological structure according to claim 7, it is characterised in that low-voltage coil connects
Line end is drawn from the side of the integrated high frequency transformer of AC/AC magnetic, and the leading-out terminal of high-tension coil is from the integrated high frequency transformer of AC/AC magnetic
In the middle of extraction.
9. DC blower fan group system topological structure according to claim 7, it is characterised in that the iron core is also wrapped
Bottom insulation pressure strip and upper portion insulating pressure strip are included, the bottom insulation pressure strip and upper portion insulating pressure strip are arranged at opening
Between upward magnetic core and the magnetic core that Open Side Down.
10. the DC blower fan group system topological structure according to claim any one of 3-9, it is characterised in that institute
Stating AC/DC high-frequency and high-voltages rectifier includes uncontrollable device D1, uncontrollable device D2, uncontrollable device D3, uncontrollable device D4、
Uncontrollable device D5, uncontrollable device D6, controllable devices S1, controllable devices S2With high-voltage filtering capacitor device CHv, the uncontrollable device
Part D1~D4It is in parallel after connecting two-by-two to constitute H bridges c, the uncontrollable device D5With uncontrollable device D6Respectively with controllable devices S1With
Controllable devices S2Inverse parallel after series connection, forms the AC of AC/DC high-frequency and high-voltage rectifiers, input and the height of the AC
Two leading-out terminals connection of winding terminal is pressed, the output end of the AC is connected to two series arms for constituting H bridges c
On, two output direct current termination high-voltage filtering capacitor device C of H bridges cHVTwo ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270840.5A CN106711992B (en) | 2016-12-30 | 2016-12-30 | Topological structure of permanent magnet direct current fan cluster system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270840.5A CN106711992B (en) | 2016-12-30 | 2016-12-30 | Topological structure of permanent magnet direct current fan cluster system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106711992A true CN106711992A (en) | 2017-05-24 |
| CN106711992B CN106711992B (en) | 2020-07-14 |
Family
ID=58905753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611270840.5A Active CN106711992B (en) | 2016-12-30 | 2016-12-30 | Topological structure of permanent magnet direct current fan cluster system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106711992B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887924A (en) * | 2017-12-20 | 2018-04-06 | 北京金风科创风电设备有限公司 | Fan power transmission system |
| CN107947222A (en) * | 2017-12-26 | 2018-04-20 | 北京金风科创风电设备有限公司 | Direct current fan power transmission system |
| CN108899887A (en) * | 2018-05-18 | 2018-11-27 | 周羽 | Power generation Transformer Rectifier system and its control method based on type multiphase permanent magnet generator |
| CN109617120A (en) * | 2018-12-24 | 2019-04-12 | 北京金风科创风电设备有限公司 | Direct-current wind generating set and wind power plant |
| CN113364025A (en) * | 2021-08-06 | 2021-09-07 | 四川大学 | Wind power generation unit, offshore transmitting end converter station, power transmission system and power transmission method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110187106A1 (en) * | 2010-10-29 | 2011-08-04 | Mitsubishi Heavy Industries, Ltd. | Wind-turbine-generator control system, wind farm, and wind-turbine-generator control method |
| CN103944180A (en) * | 2013-01-21 | 2014-07-23 | 同济大学 | Hybrid energy storage wind/PV hybrid generation system based on solid state transformer |
| CN104410105A (en) * | 2014-11-26 | 2015-03-11 | 沈阳工业大学 | Intelligent wind power plant control method based on direct-current bus grid structure |
| JP5840323B1 (en) * | 2014-09-16 | 2016-01-06 | 三菱電機株式会社 | Wind power generation system and DC power transmission system |
| CN106026171A (en) * | 2016-06-29 | 2016-10-12 | 中国西电电气股份有限公司 | Wind-power direct-current collection power transmission system |
-
2016
- 2016-12-30 CN CN201611270840.5A patent/CN106711992B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110187106A1 (en) * | 2010-10-29 | 2011-08-04 | Mitsubishi Heavy Industries, Ltd. | Wind-turbine-generator control system, wind farm, and wind-turbine-generator control method |
| CN103944180A (en) * | 2013-01-21 | 2014-07-23 | 同济大学 | Hybrid energy storage wind/PV hybrid generation system based on solid state transformer |
| JP5840323B1 (en) * | 2014-09-16 | 2016-01-06 | 三菱電機株式会社 | Wind power generation system and DC power transmission system |
| CN104410105A (en) * | 2014-11-26 | 2015-03-11 | 沈阳工业大学 | Intelligent wind power plant control method based on direct-current bus grid structure |
| CN106026171A (en) * | 2016-06-29 | 2016-10-12 | 中国西电电气股份有限公司 | Wind-power direct-current collection power transmission system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887924A (en) * | 2017-12-20 | 2018-04-06 | 北京金风科创风电设备有限公司 | Fan power transmission system |
| CN107947222A (en) * | 2017-12-26 | 2018-04-20 | 北京金风科创风电设备有限公司 | Direct current fan power transmission system |
| CN108899887A (en) * | 2018-05-18 | 2018-11-27 | 周羽 | Power generation Transformer Rectifier system and its control method based on type multiphase permanent magnet generator |
| CN109617120A (en) * | 2018-12-24 | 2019-04-12 | 北京金风科创风电设备有限公司 | Direct-current wind generating set and wind power plant |
| CN109617120B (en) * | 2018-12-24 | 2022-11-29 | 北京金风科创风电设备有限公司 | Direct-current wind generating set and wind power plant |
| CN113364025A (en) * | 2021-08-06 | 2021-09-07 | 四川大学 | Wind power generation unit, offshore transmitting end converter station, power transmission system and power transmission method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106711992B (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106711992A (en) | Permanent-magnet DC fan cluster system topological structure | |
| CN105576921B (en) | Dynamically reconfigurable motor, electric system and motor dynamics reconstructing method | |
| US9837824B2 (en) | Connection system for power generation system with DC output | |
| US9525284B2 (en) | Medium voltage DC collection system with power electronics | |
| US20150123402A1 (en) | Magnetic structure combining normal mode and common mode inductance | |
| CN205670685U (en) | Equipment for transmission electric power | |
| MX2010010240A (en) | Electric energy feedback device. | |
| CN105322530A (en) | Device and method for connecting an electric power generator to an HVDC transmission system | |
| CN109921704A (en) | A kind of switch reluctance generator current transformer and its control method | |
| CN106452098A (en) | High-voltage and large-power wind power generation system and control method thereof | |
| CN106253530B (en) | One kind is across two tooth concentratred winding vernier magnetoes | |
| CN107994816A (en) | A kind of electric system and its optimal control method | |
| CN106356889A (en) | Permanent magnet wind power generator set | |
| US20210288539A1 (en) | Torque density pseudo six-phase induction machine | |
| CN114123712B (en) | Voltage converter based on double-stator electric excitation synchronous motor design | |
| CN114123710B (en) | Variable-voltage frequency converter based on double-stator permanent magnet synchronous motor design | |
| CN204836014U (en) | A tandem type interchange exciting arrangement for variable -ratio water -storage power generation system | |
| CN110311413A (en) | It is a kind of suitable for multiple-variable flow device driving Multiple coil synchronous motor to system | |
| CN114123711B (en) | Surface-mounted permanent magnet variable voltage frequency converter based on magnetic field modulation principle and design method | |
| CN109372698A (en) | A kind of wind generator system | |
| CN209324585U (en) | A kind of wind generator system | |
| CN207559584U (en) | The power generation-transmission system and wind power generating set of wind power generating set | |
| CN208971270U (en) | A kind of four phase double-fed electric excitation synchronous motors | |
| CN211791002U (en) | Stator winding structure and frequency conversion all-in-one machine | |
| CN107947242A (en) | Power generation and transmission system of wind generating set and wind generating set |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230821 Address after: 200240 room 110 and 111, building 3, No. 600, Jianchuan Road, Minhang District, Shanghai Patentee after: Shanghai Jiaotong University Intellectual Property Management Co.,Ltd. Patentee after: Cai Xu Address before: 200240 No. 800, Dongchuan Road, Shanghai, Minhang District Patentee before: SHANGHAI JIAO TONG University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231103 Address after: 201109 floor 3, building B, No. 940 Jianchuan Road, Minhang District, Shanghai Patentee after: Shanghai Zhonglv New Energy Technology Co.,Ltd. Address before: 200240 room 110 and 111, building 3, No. 600, Jianchuan Road, Minhang District, Shanghai Patentee before: Shanghai Jiaotong University Intellectual Property Management Co.,Ltd. Patentee before: Cai Xu |