CN107947535A - A kind of superhigh voltage DC breaker power electronics tributary unit - Google Patents
A kind of superhigh voltage DC breaker power electronics tributary unit Download PDFInfo
- Publication number
- CN107947535A CN107947535A CN201711401634.8A CN201711401634A CN107947535A CN 107947535 A CN107947535 A CN 107947535A CN 201711401634 A CN201711401634 A CN 201711401634A CN 107947535 A CN107947535 A CN 107947535A
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- diode
- igbt
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- frame
- module
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- 238000009434 installation Methods 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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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
- H02M1/00—Details of apparatus for conversion
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
- H02M1/348—Passive dissipative snubbers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Rectifiers (AREA)
Abstract
The present invention provides a kind of superhigh voltage DC breaker power electronics tributary unit, including frame assembly and the two PP IGBT modules, two diode (led) modules, 2/N RC buffer loops module, multiple control Slab elements, frame, multiple driving plates, the driving power that are arranged in frame assembly.The integrated all devices of invention unit, compact-sized, beautiful by power supply, control, electric, structured set on a unit, circuit distribution is reasonable.The present invention also use stacked structure, all modules, unit all can independently installed, dismounting and maintenance, effectively save time of installation and wiring.
Description
Technical field
The present invention relates to super high voltage direct current electricity transmission technical field, more particularly to a kind of superhigh voltage DC breaker power electronics
Tributary unit.
Background technology
In recent years, MTDC transmission system is fast-developing, and obtains certain practical application, such as three end of China's Generated By Nanao Wind Power Plants
Five end flexible DC power transmission demonstration project of direct current transportation demonstration project and Zhoushan.At present due to there is no high current to open in straight-flow system
The dc circuit breaker of cutting capacity, the safeguard measure of DC grid excision direct fault current are mainly locking transverter or cut-off friendship
Flow side breaker.According to existing method, whole direct-flow distribution system will stop transport in short-term, while to the AC system of parallel running
Enormous impact is caused, the serious reliability for reducing system power supply.High current is cut-off as being applied in DC grid in several milliseconds
Dc circuit breaker, it is quick to cut off faulty equipment or circuit, it is possible to ensure the stable operation of straight-flow system non-faulting part, pole
The earth improves system reliability.Therefore, the research and development of dc circuit breaker are one of key technologies for developing DC grid.
The content of the invention
To solve the above problems, the present invention provides a kind of superhigh voltage DC breaker power electronics tributary unit, including
Frame assembly and two PP-IGBT modules being arranged in frame assembly, two diode (led) modules, 2/N RC buffer loop mould
Block, multiple control Slab elements, frame, multiple driving plates, driving power；
The frame assembly includes two side frames and the crossbeam between two side frames, and the side is mad by top frame and positioned at top frame
Under bottom frame composition, the crossbeam both ends are respectively fixed on a bottom frame；Top frame is located at medium position on bottom frame top, length ratio
Bottom frame is short；Modules are arranged in frame；
The PP-IGBT modules include N number of PP-IGBT, 2N PP-IGBT radiator, N+1 insulating part, and wherein N is integer；
Each PP-IGBT radiators are evenly distributed in a row, and the PP-IGBT radiators inboard at both ends is provided with insulating part；From PP-
IGBT radiator row one end is arranged at intervals to the other end, PP-IGBT with insulating part；The both ends of PP-IGBT radiators row are respectively set
There is a side guide, and an at least pull rod is provided between two side guides, the pull rod and two side guides are fixed as one
Body；Top bolt, each PP-IGBT radiators two are provided between the adjacent side guide in one end of the PP-IGBT radiators row
The PP-IGBT installation directions of side are on the contrary, be one group of PP-IGBT；
The diode (led) module includes M diode, M+1 diode radiating device, and wherein M is integer；Each diode radiating
Device is evenly distributed in a row, the diode radiating device inboard at both ends is provided with diode, remaining each diode radiating device
Both sides are both provided with a diode, and the both ends of diode radiating device row are each provided with a side guide, and two side guides it
Between be provided with an at least pull rod, the pull rod is fixed as one with two side guides；One end of the diode radiating device row
Top bolt is provided between adjacent side guide；
Two diode (led) modules are installed on bottom frame upper end respectively along crossbeam length direction, and respectively positioned at top frame both ends with it is neighbouring
Between arrester；Two PP-IGBT modules are arranged side by side between two top frames along crossbeam length direction.
Driving power mounting bracket, driving board mounting stand are respectively arranged with above described two diode (led) modules, is respectively used to
Installation driving power, the driving plate being sequentially arranged；
The RC buffer loops module includes several capacitances, several resistance, and each capacitance both ends are connected on by copper bus-bar
Together, each capacitance is cascaded by copper bus-bar.
Further, every group of pp-IGBT corresponds to diode die four diodes in the block, composition diode bridge structure electricity
Road；In diode bridge structural circuit, each pp-IGBT source electrodes, drain electrode are respectively connected with a diode, and source electrode is and two poles
Cathode connection, the drain electrode of pipe are connected with diode cathode；In whole diode bridge structural circuit, be connected with source electrode two
Diode cathode links together, and links together with two diode cathodes of drain electrode connection；Each diode bridge structure
Circuit connected in series.
Further, arrester module is further included, the arrester module is connected with diode radiating device by copper bus-bar,
Arrester number is N/2 in arrester module, each arrester difference RC buffer loop in parallel.
Further, each diode bridge structural circuit is in parallel with a RC buffer loop.
Further, it is arranged with butterfly spring outside the top bolt of PP-IGBT modules and/or diode (led) module.
Further, the pull rod of PP-IGBT modules and/or diode (led) module has four, surrounds a cubical area,
PP-IGBT modules and/or diode (led) module are located in cubical area.
Further, M is twice of N.
Further, arrester module is arranged at bottom frame side along crossbeam length direction.
The beneficial effects of the invention are as follows：
The integrated all devices of invention unit, by power supply, control, electric, structured set on a unit, compact-sized,
Beauty, circuit distribution are reasonable.The present invention also uses stacked structure, and all modules, unit all can independently installed, dismounting and dimensions
Shield, effectively saves the time of installation and wiring.Power electronic component in unit has cut-off current big, in short after failure
Road characteristic, the characteristics of driving power is small.The present invention is reduced in design and serial number, improves and reliability of connecting, on-state are damaged
Nearly zero is consumed, supports difference between current alienation configuration.
Cost of the present invention is low, supports reclosing, floor space is small, reliability is high, controllability is strong, technical price has optimization
Prospect.
Brief description of the drawings
Fig. 1 is power electronics tributary unit front graphics.
Fig. 2 is power electronics tributary unit back side graphics.
Fig. 3 is frame assembly graphics.
Fig. 4 is PP-IGBT module graphics.
Fig. 5 is diode (led) module graphics.
Fig. 6 is RC buffer loop module graphics.
Fig. 7 is left arrester unit three-dimensional figure.
Fig. 8 is diode bridge structure buffering branch topological circuit figure.
In figure：1. left arrester unit, 2. left diode (led) modules, 3.PP-IGBT modules, 4. right diode (led) modules, 5. is right
Arrester module, 6.RC buffer loop modules, 7. control Slab elements, 8. driving plates, 9. driving powers, 10.PP-IGBT,
11.PP-IGBT radiators, 12. insulating parts, 13. diodes, 14. diode radiating devices, 15. capacitances, 16. resistance, 17. bronze medals are female
Row, 18. arrester modules, 19. diode bridge structural circuits, 20. snubber circuits, 21. diode bridge structures buffering
Branch.
Embodiment
As shown in Figure 1 and Figure 2, superhigh voltage DC breaker power electronics tributary unit of the present invention includes frame assembly
And it is arranged at two PP-IGBT modules, 3, two diode (led) modules in frame assembly, multiple RC buffer loops modules 6, multiple
Control Slab element 7, frame assembly, multiple driving plates 8, driving power 9.
Various pieces are illustrated below.
1. frame assembly
As shown in figure 3, frame assembly includes two side frames and the crossbeam between two side frames, the side is mad by top frame and position
Bottom frame composition under top frame, the crossbeam both ends are respectively fixed on a bottom frame；Top frame is located at medium position on bottom frame top,
Length is shorter than bottom frame.The effect of frame be used for modules are installed, it can be seen from the figure that modules be arranged at side frame with
In the space that crossbeam surrounds.
2. PP-IGBT modules 3
As shown in figure 4, the PP-IGBT modules 3 include N number of PP-IGBT 10,2N PP-IGBT radiator 11, N+1 insulation
Part 12, wherein N are integer.N is 22 in the present embodiment.
Each PP-IGBT radiators 11 are evenly distributed in a row, are provided with positioned at 11 inboard of PP-IGBT radiators at both ends
Insulating part 12, arranges one end from PP-IGBT radiators 11 and is arranged at intervals to the other end, PP-IGBT 10 with insulating part 12.PP-IGBT
Radiator 11 is not only acted as to 10 device cooling effect of PP-IGBT, and plays the role of current lead-through.Each PP-IGBT dissipates
10 installation directions of PP-IGBT of hot 11 both sides of device are on the contrary, be one group of PP-IGBT 10.
The both ends that PP-IGBT radiators 11 arrange are each provided with a side guide, and are provided with least between two side guides
A piece pull rod, the pull rod are used to be fixed as one with two side guides, and the row of PP-IGBT radiators 11 are fixed on two sides
Between pressing plate.Top bolt is provided between the adjacent side guide in one end that the PP-IGBT radiators 11 arrange, and pushes up and is arranged outside bolt
There is at least one butterfly spring（As shown in Figure 4）.Top bolt is threadedly attached in the present invention.When valve string module device needs more
When changing, the pressure of module entirety can be laid down by adjusting the position of top bolt, carry out replacement maintenance.When installing again, as long as fastening spiral shell
Module can be pressed by line to be completed.
In the present embodiment, butterfly spring has three.Butterfly spring plays the role of ensureing pressure after compressing, it is ensured that PP-
The conductive requirement of IGBT 10.
Further, four pull rods are preferably provided with, surround a cubical area, the row of PP-IGBT radiators 11 are positioned at vertical
In cube region.Pull rod is fixed together by the nut bolt side guide neighbouring with butterfly spring.
3. diode (led) module
As shown in figure 5, superhigh voltage DC breaker diode 1 of the present invention, which is pressed valve string modular structure, includes N number of diode
13rd, N+1 diode radiating device 14, wherein N are integer.Diode has 22 in the present embodiment.
Each diode radiating device 14 is evenly distributed in a row, and 14 inboard of diode radiating device at both ends is provided with one
A diode 13, remaining each 14 both sides of diode radiating device are both provided with a diode 13.Diode radiating device 14 is not only
Play to 13 cooling effect of diode, and play the role of current lead-through.
The both ends that diode radiating device 14 arranges are each provided with a side guide, and are provided with least one between two side guides
Root pull rod, the pull rod are used to be fixed as one with two side guides, and the row of diode radiating device 14 are fixed on two side pressures
Between plate.Top bolt is provided between the adjacent side guide 3 in one end that the diode radiating device 14 arranges, and pushes up and is arranged with outside bolt
Butterfly spring.Top bolt is threadedly attached in the present invention.When valve string module device needs replacing, the position for adjusting top bolt is
The pressure of module entirety can be laid down, carries out replacement maintenance.When installing again, completed as long as module can be pressed by fastening thread.
In the present embodiment, butterfly spring has three.Butterfly spring plays the role of ensureing pressure after compressing, it is ensured that two poles
The conductive requirement of pipe.
On 14 column direction of diode radiating device, in pairs, the installation direction of every group of diode is opposite for diode.When
So, diode press fitting direction can be changed according to the circuit of superhigh voltage DC breaker, and the installation direction of every group of diode can be with
It is identical.
Further, four pull rods are preferably provided with, surround a cubical area, the row of diode radiating device 14 positioned at cube
In body region.Pull rod is fixed together by the nut bolt side guide neighbouring with butterfly spring.
Two diode (led) modules are installed on bottom frame upper end respectively along crossbeam length direction, and are located at top frame both ends respectively,
Left diode (led) module 2 as shown in Figure 1, right diode (led) module 4；Two PP-IGBT modules 3 are set side by side along crossbeam length direction
It is placed between two top frames.
9 mounting bracket of driving power, 8 mounting bracket of driving plate are respectively arranged with above described two diode (led) modules, is used respectively
In installation driving power 9, the driving plate 8 being sequentially arranged.
4. driving power 9, driving plate 8, control Slab element 7
9 mounting bracket of driving power, control 7 mounting bracket of Slab element are respectively arranged with above described two diode (led) modules, is used respectively
In installation driving power 9, the control Slab element 7 being sequentially arranged.Driving plate 8 is provided with above described two diode (led) modules to install
Frame, for installing the driving plate 8 being sequentially arranged.From figure 1 it appears that the both ends of each mounting bracket are mounted in mould below
On two side guides of block, be sequentially arranged some horizontal stripes on mounting bracket, horizontal stripe to be used to installing driving power 9, driving plate 8,
Control Slab element 7.
The each two PP-IGBT 10 of PP-IGBT modules 3 and 4 diodes of neighbouring diode (led) module form one two
Pole pipe bridge architecture circuit 19, all diode bridge structural circuits 19 are together in series.PP-IGBT modules 3 and diode (led) module
It is formed by connecting by copper bus-bar 17.
5. RC buffer loops module 6
Each RC buffer loops module 6 is arranged at 3 lower end of PP-IGBT modules, is fixed on above crossbeam.Effectively utilized in structure
Space, structure are compacter.Diode (led) module is placed in parallel with RC buffer loops module 6.Not only can be so as on this spline structure
In installing and dismounting, the connection distance of copper bar can be also reduced, reduces Material Cost.6 graphics of the modules of RC buffer loops shown in Fig. 6,
RC buffer loops are made of capacitance 15, resistance 16 and copper bus-bar 17.Wherein capacitance 15, resistance 16 are cascaded, and are formed slow
Rush absorbing circuit 20.Capacitance 15, resistance 16 are fixed on copper bus-bar 17, this connection mode can reduce stray inductance.
Further, it is female by copper that arrester module 18, the arrester module 18 and diode radiating device 14 are further included
Row 17 connects, and arrester number is N/2 in arrester module 18, each arrester difference RC buffer loop in parallel.Such as Fig. 1
Shown, arrester has been allocated as two groups by the present embodiment, is respectively arranged at the left and right both sides of unit, be known as left arrester unit 1,
Right arrester unit 5.In every group, each take shelter from the thunder is fixed by isolation beam（As shown in Figure 6）.Such as, left arrester unit 1 is provided with
6 arrester units, are fixed by isolation beam by 6 arresters and formed.Right arrester unit 5 passes through insulation by 5 arresters
Beam is fixed and formed.Arrester module 18 is arranged at by bottom frame along crossbeam length direction.
Further, every group of pp-IGBT corresponds to diode die four diodes 13 in the block, forms diode bridge structure
Circuit 19；In diode bridge structural circuit 19, the source electrode of each pp-IGBT10, drain electrode are respectively connected with a diode 13, and
Source electrode is that to be connected, drain with the cathode of diode 13 be connected with 13 anode of diode；Whole diode bridge structural circuit 19
In, two diode cathodes being connected with source electrode link together, and link together with two diode cathodes of drain electrode connection；
Each diode bridge structural circuit 19 is connected, composition diode bridge structure buffering branch 21.
Claims (8)
1. a kind of superhigh voltage DC breaker power electronics tributary unit, it is characterised in that including frame assembly and be arranged at frame
Two PP-IGBT modules, two diode (led) modules, 2/N RC buffer loops module in frame component, multiple control Slab elements,
Frame, multiple driving plates, driving power；
The frame assembly includes two side frames and the crossbeam between two side frames, and the side is mad by top frame and positioned at top frame
Under bottom frame composition, the crossbeam both ends are respectively fixed on a bottom frame；Top frame is located at medium position on bottom frame top, length ratio
Bottom frame is short；Modules are arranged in frame；
The PP-IGBT modules include N number of PP-IGBT, 2N PP-IGBT radiator, N+1 insulating part, and wherein N is integer；
Each PP-IGBT radiators are evenly distributed in a row, and the PP-IGBT radiators inboard at both ends is provided with insulating part；From PP-
IGBT radiator row one end is arranged at intervals to the other end, PP-IGBT with insulating part；The both ends of PP-IGBT radiators row are respectively set
There is a side guide, and an at least pull rod is provided between two side guides, the pull rod and two side guides are fixed as one
Body；Top bolt, each PP-IGBT radiators two are provided between the adjacent side guide in one end of the PP-IGBT radiators row
The PP-IGBT installation directions of side are on the contrary, be one group of PP-IGBT；
The diode (led) module includes M diode, M+1 diode radiating device, and wherein M is integer；Each diode radiating
Device is evenly distributed in a row, the diode radiating device inboard at both ends is provided with diode, remaining each diode radiating device
Both sides are both provided with a diode, and the both ends of diode radiating device row are each provided with a side guide, and two side guides it
Between be provided with an at least pull rod, the pull rod is fixed as one with two side guides；One end of the diode radiating device row
Top bolt is provided between adjacent side guide；
Two diode (led) modules are installed on bottom frame upper end respectively along crossbeam length direction, and are located at top frame both ends respectively；Two
PP-IGBT modules are arranged side by side between two top frames along crossbeam length direction；
Driving power mounting bracket, driving board mounting stand are respectively arranged with above described two diode (led) modules, is respectively used to install
Driving power, the driving plate being sequentially arranged；
The RC buffer loops module includes several capacitances, several resistance, and each capacitance both ends are connected on by copper bus-bar
Together, each capacitance is cascaded by copper bus-bar.
2. superhigh voltage DC breaker power electronics tributary unit according to claim 1, it is characterised in that every group of pp-
IGBT corresponds to diode die four diodes in the block, forms diode bridge structural circuit；In diode bridge structural circuit,
Each pp-IGBT source electrodes, drain electrode are respectively connected with a diode, and source electrode is to be connected, drain to be and two with the cathode of diode
Pole pipe anode connects；In whole diode bridge structural circuit, two diode cathodes being connected with source electrode link together, with
Two diode cathodes of drain electrode connection link together；Each diode bridge structural circuit series connection.
3. superhigh voltage DC breaker power electronics tributary unit according to claim 2, it is characterised in that further include and keep away
Thunder device module, the arrester module are connected with diode radiating device by busbar, and arrester number is N/ in arrester module
2, each arrester difference RC buffer loop in parallel.
4. superhigh voltage DC breaker power electronics tributary unit according to claim 3, it is characterised in that each two pole
Pipe bridge formula structural circuit is in parallel with a RC buffer loop.
5. superhigh voltage DC breaker power electronics tributary unit as claimed in claim 1, it is characterised in that PP-IGBT moulds
Butterfly spring is arranged with outside the top bolt of block and/or diode (led) module.
6. superhigh voltage DC breaker power electronics tributary unit as claimed in claim 1, it is characterised in that PP-IGBT moulds
The pull rod of block and/or diode (led) module has four, surrounds a cubical area, PP-IGBT modules and/or diode (led) module
In cubical area.
7. super superhigh voltage DC breaker power electronics tributary unit as claimed in claim 1, it is characterised in that M is the two of N
Times.
8. super superhigh voltage DC breaker power electronics tributary unit as claimed in claim 1, it is characterised in that arrester mould
Block is arranged at bottom frame side along crossbeam length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401634.8A CN107947535B (en) | 2017-12-22 | 2017-12-22 | Power electronic branch unit of ultrahigh voltage direct current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401634.8A CN107947535B (en) | 2017-12-22 | 2017-12-22 | Power electronic branch unit of ultrahigh voltage direct current circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107947535A true CN107947535A (en) | 2018-04-20 |
| CN107947535B CN107947535B (en) | 2024-02-20 |
Family
ID=61942248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711401634.8A Active CN107947535B (en) | 2017-12-22 | 2017-12-22 | Power electronic branch unit of ultrahigh voltage direct current circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107947535B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768184A (en) * | 2018-04-23 | 2018-11-06 | 北京平高清大科技发展有限公司 | A kind of switch power unit and high voltage DC breaker |
| CN113488347A (en) * | 2021-07-30 | 2021-10-08 | 北京电力设备总厂有限公司 | Power electronic switch group of direct current breaker |
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| CN113488347A (en) * | 2021-07-30 | 2021-10-08 | 北京电力设备总厂有限公司 | Power electronic switch group of direct current breaker |
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| CN107947535B (en) | 2024-02-20 |
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