CN109586260A - A kind of resistance sense type capacitor commutation blended learning and its control method - Google Patents
A kind of resistance sense type capacitor commutation blended learning and its control method Download PDFInfo
- Publication number
- CN109586260A CN109586260A CN201811274423.7A CN201811274423A CN109586260A CN 109586260 A CN109586260 A CN 109586260A CN 201811274423 A CN201811274423 A CN 201811274423A CN 109586260 A CN109586260 A CN 109586260A
- Authority
- CN
- China
- Prior art keywords
- current
- branch
- type capacitor
- commutation
- resistance sense
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention provides a kind of resistance sense type capacitor commutation blended learning and its control method, blended learning includes on-state low-loss branch, electric current transfer branch and current limliting branch, and using half control type device, logic is simple, economic and reliable.The current limiter steady-state loss is low, has bidirectional current limiting ability, can effectively inhibit DC grid short circuit current, and can reduce arrester dissipation energy；Substantially postpone submodule IGBT blocking time, strives for time enough for the movement of remaining protective device；Using half control type power electronic devices, and power electronic devices parallel connection quantity can be saved, save cost；Guarantee that current-limiting resistance and corresponding radiator are fully used, improves current limitation effect.The control method of resistance sense type capacitor commutation blended learning provided by the invention, is divided into the failure latter two situation that the DC line before the failure that the DC line where the DC line where current limiter operates normally or detect current limiter occurs and where detecting resistance sense type capacitor commutation blended learning occurs and realizes to resistance sense type capacitor commutation mixing current limiting device and control.
Description
Technical field
The present invention relates to power electronics fields, and in particular to a kind of resistance sense type capacitor commutation blended learning and its
Control method.
Background technique
The DC grid technology of high-voltage large-capacity is the important ring of following building smart grid and global energy internet
Section.Flexible DC transmission skill based on modularization multi-level converter (modular multilevel converter, MMC)
Art becomes a new expectation of power industry circle convenient for building DC grid.Zhangbei County's direct current that China will be built up
Net is first DC grid engineering in the world using half-bridge submodule (half bridge sub module) plus overhead line scheme
Practice.There is apparent Technological Economy sexual clorminance using overhead line, but following problem is exactly DC side probability of malfunction
Height does not have the characteristics of DC side fault clearance ability in conjunction with half-bridge submodule, needs using dc circuit breaker disengagement failure electricity
Stream.With the raising of DC grid capacity, fault current can reach the resistant to flow limit of power electronic devices in a shorter time, this is wanted
It asks and cuts off failure within the faster time, high challenge is brought to fault detection speed and dc circuit breaker rupturing capacity.
For reliable disengagement failure, it is desirable that breaker constantly passes through the series-parallel electrical during open circuit to meet of device
Stress, first is that uneconomical, secondly the unlimited device that increases can also test the reliability of commercial plant.There is also another solve think
Road is exactly that fault current limiter (fault current limiter, FCL) is used to inhibit zooming fault current, is reduced
To the rigor test of breaker.
Currently used fault current limiter mainly includes superconductive current limiter (superconducting fault
Current limiter, SFCL) and solid-state current limiter (solid-state fault current limiter, SSFCL)
Two major classes.Superconductive current limiter quenches automatically when electric current steeply rises by utilizing superconductor physical property, shows as resistance spy
Property, hinder fault current further up.Solid-state current limiter series connection in stable state enters main circuit, once detect that failure is believed
Number, resistance or inductance are sealed in fault loop by the movement of power electronic devices immediately.Both the above current limiter all exists
Intrinsic weakness, the major defect of superconductive current limiter are that manufacturing cost and equipment volume cause limitation to application, are applicable in
Harsh requirement is proposed to uniformly quenching in the superconductive current limiter of voltage levels.Solid-state current limiter and solid circuit breaker lack
Point is similar, and by the power limitations of single power electronic devices, generally require big metering device meets high-voltage great-current in series and parallel, by
On-state loss caused by this will lead to economy decline.
Summary of the invention
In order to overcome the loss of the above-mentioned current limiter of solid-state direct-current in the prior art big and less economical and superconductive current limiter
Manufacturing cost height and the big problem of equipment volume, the present invention provide a kind of resistance sense type capacitor commutation blended learning and its control
Method, resistance sense type capacitor commutation blended learning include on-state low-loss branch, electric current transfer branch and current limliting branch.On-state
Low-loss branch for realizing the conducting of DC line steady-state current when DC line operates normally, and is detecting direct current
Fault current is transferred to electric current transfer branch after the failure that route occurs, electric current shifts branch, turns for carrying through-flow branch
The fault current of shifting, and the current limiting element in current limliting branch is made to access DC line；It is divided into the hybrid limit of resistance sense type capacitor commutation
DC line where stream device operates normally or detects the DC line hair where resistance sense type capacitor commutation blended learning
The failure latter two that DC line before raw failure and where detecting resistance sense type capacitor commutation blended learning occurs
Situation realizes to resistance sense type capacitor commutation blended learning and controls that resistance sense type capacitor commutation blended learning uses half control type
Device, logic is simple, and economy is high, and control ability is strong.
In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme that:
On the one hand, the present invention provides a kind of resistance sense type capacitor commutation blended learning, comprising:
On-state low-loss branch for realizing the conducting of DC line steady-state current when DC line operates normally, and is being examined
Measure DC line generation failure after by fault current be transferred to electric current transfer branch；
Electric current shifts branch, for carrying the fault current of through-flow branch transfer, and connects the resistance sense type capacitor in current limliting branch
Enter DC line；
Current limliting branch, for increasing system damping, fault current limiting increases.
The on-state low-loss branch includes supper-fast mechanical switch UFD and turns with the concatenated load of supper-fast mechanical switch
Change switch LCS；
The load changeover switch includes N number of IGBT unit, and N number of IGBT unit is to connect, anti-series combination combines；
The IGBT unit include IGBT and with the antiparallel diode of IGBT.
The on-state low-loss branch and electric current shift branch circuit parallel connection, form common point A and common point B.
The thyristor of the electric current transfer branch routing half control type forms in series and parallel.
The current limliting branch and on-state low-loss and electric current shift branch circuit parallel connection, and tie point is similarly common point A and public
Point B；
The current limliting branch routes current limliting module composition, and two current limliting modules share a commutation capacitor.
The current limliting module is by antiparallel thyristor, current-limiting inductance and the thyristor in parallel with current-limiting inductance and current limliting
Resistance composition, facilitates and realizes bidirectional current limiting ability.
On the other hand, the DC line where resistance sense type capacitor commutation blended learning operates normally or detects resistance sense
Before the failure that DC line where type capacitor commutation blended learning occurs, the present invention provides a kind of resistance sense type capacitors to change
Mix the control method of formula current limiter, comprising:
Electric current shifts all IGBT conducting in branch, and steady-state current or fault current flow through through-flow branch.
In another aspect, after the failure that the DC line where detecting resistance sense type capacitor commutation blended learning occurs,
The present invention also provides the control methods of another resistance sense type capacitor commutation blended learning, comprising:
t 1Moment, protective device issue instruction, and all IGBT shutdown of on-state low-loss branch triggers T3、T4, main open circuit is connected
IGBT in device turns off LCS module, and issues separating brake instruction to supper-fast mechanical switch, and electric current flows through electric current transfer branch；
t 2Moment, supper-fast mechanical switch complete disjunction, trigger thyristor T2, and continue to trigger thyristor T1。T4Upper electric current moment
It is transferred to T2Branch, T4It is turned off because commutation capacitor backward voltage is born, electric current flows through current limliting branch from electric current transfer branch；
t 3Moment, T1Forward voltage conducting is born, system capacitance is shifted as unique power supply, energy to circuit rest part；
t 4Moment, T3On electric current be fully transferred to T1, T3Shutdown.L 1、R 1WithR 2Series connection access system, realizes second of commutation,
Current limiter action process is completed.
Compared with the immediate prior art, technical solution provided by the invention is had the advantages that
Resistance sense type capacitor commutation blended learning provided by the invention includes on-state low-loss branch, electric current transfer branch and limit
Stream branch, on-state low-loss branch, for the conducting of the realization DC line steady-state current when DC line operates normally, and
Detect DC line occur failure after by fault current be transferred to electric current transfer branch, electric current shift branch, for carrying
The fault current of on-state low-loss branch transfer, and the current limiting element in current limliting branch is made to access DC line；
It is hybrid that the control method of resistance sense type capacitor commutation blended learning provided by the invention is divided into resistance sense type capacitor commutation
DC line where current limiter operates normally or detects the DC line where resistance sense type capacitor commutation blended learning
Two after the failure that DC line before the failure of generation and where detecting resistance sense type capacitor commutation blended learning occurs
Kind situation realizes to resistance sense type capacitor commutation blended learning and controls that control mode is simple, and controllability is strong；
Middle on-state low-loss branch of the invention plays the steady-state current of conducting direct current route, reduces DC line loss and save
The effect of cost, electric current shift branch and carry out that electric current transfer is forced to flow through current limliting branch in time after fault current appearance, inhibit
Fault current；
Technical solution provided by the invention takes full advantage of using current-limiting resistance and the comprehensive current limliting of current-limiting reactor, it can be achieved that two-way limit
Stream, current limitation effect are good；
Technical solution provided by the invention where resistance sense type capacitor commutation blended learning DC line operate normally or
Before the failure that DC line where detecting resistance sense type capacitor commutation blended learning occurs, electric current flows through on-state low-loss
Branch, on-state low-loss branch have a lesser loss resistance, better economy when stable state；
Technical solution provided by the invention detects the DC line generation where resistance sense type capacitor commutation blended learning
After failure, along with the charging of commutation capacitor in electric current transfer branch, fault current can be forced to flow through electric current transfer branch；
Technical solution provided by the invention effectively save can be invested using the half control type device of low cost.
Detailed description of the invention
Fig. 1 is resistance sense type capacitor commutation blended learning structure chart in the embodiment of the present invention 1；
Fig. 2 is steady-state current path schematic diagram in the embodiment of the present invention 2；
Fig. 3 is that DC line fault electric current flows through path schematic diagram before detecting failure in the embodiment of the present invention 3；
Fig. 4 is the circulation path schematic diagram of DC line fault electric current in S101 after detecting failure in the embodiment of the present invention 4.
Fig. 5 is the circulation path signal of DC line fault electric current in S102 after detecting failure in the embodiment of the present invention 4
Figure.
Fig. 6 is the circulation path signal of DC line fault electric current in S103 after detecting failure in the embodiment of the present invention 4
Figure.
Fig. 7 is the circulation path signal of DC line fault electric current in S104 after detecting failure in the embodiment of the present invention 4
Figure.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
The embodiment of the present invention 1 provides a kind of resistance sense type capacitor commutation blended learning, specifically includes on-state low-loss branch, electricity
The circulation road Yi Zhi and current limliting branch, the function of each branch are as follows:
On-state low-loss branch therein, for realizing the conducting of DC line steady-state current when DC line operates normally,
And fault current is transferred to current limliting branch after detecting the failure that DC line occurs；
Wherein electric current shifts branch, for carrying the fault current of through-flow branch transfer, and forces the current limliting member in current limliting branch
Part accesses DC line；
Current limliting branch therein reduces the fault current rate of climb for increasing system damping after DC line of connecting.
The resistance sense type capacitor commutation blended learning structural schematic diagram that the embodiment of the present invention 1 provides is as shown in Figure 1, Fig. 1
In, through-flow branch, electric current transfer branch and current limliting branch circuit parallel connection, A, B indicate common point.
Above-mentioned on-state low-loss branch includes supper-fast mechanical switch UFD and turns with the concatenated load of supper-fast mechanical switch
Change switch LCS；Load changeover switch includes 2 IGBT units, and 2 IGBT units combine in a series arrangement.First IGBT is mono-
Member includes IGBT1With with IGBT1Antiparallel diode D1, second IGBT unit includes IGBT2With with IGBT2Antiparallel two
Pole pipe D2。
Above-mentioned electric current transfer branch routing thyristor is formed in series and parallel.
Above-mentioned current limliting branch routes current limliting module composition, and two current limliting modules share a commutation capacitor.
Above-mentioned current limliting module is by antiparallel thyristor, current-limiting inductance and the thyristor in parallel with current-limiting inductance and current limliting
Resistance composition, facilitates and realizes bidirectional current limiting ability.
Embodiment 2
The embodiment of the present invention 2 provides a kind of control method of resistance sense type capacitor commutation blended learning, and detailed process is as follows:
Under DC line normal operation where resistance sense type capacitor commutation blended learning, electric current shifts brilliant lock in branch
Pipe is turned off, and current limliting branch is out of service, the IGBT in on-state low-loss branch1And IGBT2Conducting, steady-state current flows through through-flow
Branch, when DC line operates normally steady-state current to flow through path schematic diagram as shown in Figure 2.
Embodiment 3
The control method for the resistance sense type capacitor commutation blended learning that the embodiment of the present invention 3 provides, detailed process is as follows:
Before the failure that DC line where detecting resistance sense type capacitor commutation blended learning occurs, in through-flow branch
IGBT1And IGBT2Conducting, fault current flows through on-state low-loss branch, detects flowing through for DC line fault electric current before failure
Path schematic diagram is as shown in Figure 3.
Embodiment 4
The control method for the resistance sense type capacitor commutation blended learning that the embodiment of the present invention 4 provides, suitable for detecting resistance sense
After the failure that DC line where type capacitor commutation blended learning occurs, detailed process is as follows:
S101:t 1Moment, protective device issue instruction, and all IGBT shutdown of on-state low-loss branch triggers T3、T4, conducting master
IGBT in breaker turns off LCS module, and issues separating brake instruction to supper-fast mechanical switch, and electric current flows through main current limiter branch
The circulation path schematic diagram on road, fault current is as shown in Figure 4；
S102:t 2Moment, supper-fast mechanical switch complete disjunction, trigger thyristor T2, and continue to trigger thyristor T1。T4It powers on
Stream moment is transferred to T2Branch, T4It is turned off because commutation capacitor backward voltage is born.Electric current flows through current limliting from electric current transfer branch
The circulation path schematic diagram of branch, fault current is as shown in Figure 5；
S103:t 3Moment, T1Forward voltage conducting is born, system capacitance is as unique power supply, and energy is to circuit rest part
Transfer, the circulation path schematic diagram of fault current are as shown in Figure 6；
S104:t 4Moment, T3On electric current be fully transferred to T1, T3Shutdown.L1、R1And R2Series connection access system is realized second
Commutation, current limiter action process are completed；The circulation path schematic diagram of fault current is as shown in Figure 7；
For convenience of description, each section of apparatus described above is divided into various modules with function or unit describes respectively.Certainly,
Each module or the function of unit can be realized in same or multiple softwares or hardware when implementing the application.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
The those of ordinary skill in category field can still modify to a specific embodiment of the invention referring to above-described embodiment or
Equivalent replacement, these are applying for this pending hair without departing from any modification of spirit and scope of the invention or equivalent replacement
Within bright claims.
Claims (6)
1. a kind of resistance sense type capacitor commutation blended learning characterized by comprising
On-state low-loss branch for realizing the conducting of DC line steady-state current when DC line operates normally, and is being examined
Measure DC line generation failure after by fault current be transferred to electric current transfer branch；
Electric current shifts branch, for carrying the fault current of through-flow branch transfer, and connects the resistance sense type capacitor in current limliting branch
Enter DC line；
Current limliting branch, for increasing system damping, fault current limiting increases.
2. resistance sense type capacitor commutation blended learning according to claim 1, which is characterized in that the on-state low-loss
Branch current shifts branch and current limliting branch circuit parallel connection, forms common point A and common point B.
3. resistance sense type capacitor commutation blended learning according to claim 2, which is characterized in that the on-state low-loss
Branch include supper-fast mechanical switch UFD and with the concatenated load changeover switch LCS of supper-fast mechanical switch；The load transfer
Switch includes N number of IGBT unit, and N number of IGBT unit is to connect, anti-series combination combines；The IGBT unit includes IGBT
With with the antiparallel diode of IGBT.
4. resistance sense type capacitor commutation blended learning according to claim 3, which is characterized in that the electric current transfer branch
Using thyristor and commutation capacitor cooperation investment current-limiting reactor and current-limiting resistance, steady-state loss is low, has for road and current limliting branch
Bidirectional current limiting ability effectively inhibits DC grid short circuit current.
5. a kind of control method of the resistance sense type capacitor commutation blended learning as described in claim 1-4 is any, feature
It is, the DC line where resistance sense type capacitor commutation blended learning operates normally or detect that resistance sense type capacitor commutation is mixed
Before the failure that DC line where box-like current limiter occurs, which comprises
All IGBT conducting in on-state low-loss branch, steady-state current or fault current flow through through-flow branch.
6. a kind of control method of the resistance sense type capacitor commutation blended learning as described in claim 1-4 is any, feature
It is, after the failure that the DC line where detecting resistance sense type capacitor commutation blended learning occurs, which comprises
t 1Moment, protective device issue instruction, and all IGBT shutdown of on-state low-loss branch triggers T3、T4, main open circuit is connected
IGBT in device turns off LCS module, and issues separating brake instruction to supper-fast mechanical switch, and electric current flows through electric current transfer branch；
t 2Moment, supper-fast mechanical switch complete disjunction, trigger thyristor T2, and continue to trigger thyristor T1；
T4Upper electric current moment is transferred to T2Branch, T4It is turned off because commutation capacitor backward voltage is born；
Electric current flows through current limliting branch from electric current transfer branch；
t 3Moment, T1Forward voltage conducting is born, system capacitance is shifted as unique power supply, energy to circuit rest part；
t 4Moment, T3On electric current be fully transferred to T1, T3Shutdown；
L 1、R 1WithR 2Series connection access system, realizes second of commutation, and current limiter action process is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811274423.7A CN109586260A (en) | 2018-10-30 | 2018-10-30 | A kind of resistance sense type capacitor commutation blended learning and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811274423.7A CN109586260A (en) | 2018-10-30 | 2018-10-30 | A kind of resistance sense type capacitor commutation blended learning and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109586260A true CN109586260A (en) | 2019-04-05 |
Family
ID=65921233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811274423.7A Pending CN109586260A (en) | 2018-10-30 | 2018-10-30 | A kind of resistance sense type capacitor commutation blended learning and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109586260A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728571A (en) * | 2018-12-19 | 2019-05-07 | 华北电力大学 | A kind of hybrid fault current limiter of capacitor commutation and its control method |
| CN110112718A (en) * | 2019-05-23 | 2019-08-09 | 华北电力大学 | A kind of resistance sense type blended learning topology using precharge commutation capacitor |
| CN110176754A (en) * | 2019-05-09 | 2019-08-27 | 华北电力大学 | From bypass type fault current limiter and its control method |
| CN110970875A (en) * | 2019-10-17 | 2020-04-07 | 四川大学 | Combined current-limiting type direct current breaker for direct current power grid |
| WO2020244015A1 (en) * | 2019-06-04 | 2020-12-10 | 上海交通大学 | Direct current limiter topology suitable for flexible direct current transmission system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588746A (en) * | 2004-07-31 | 2005-03-02 | 华中科技大学 | Transformer type adjustable reactor and static reactive compensator compose of it |
| CN2896468Y (en) * | 2006-06-02 | 2007-05-02 | 郑州大学 | Staged loaded pressure-regulation switch |
| CN101609982A (en) * | 2009-07-27 | 2009-12-23 | 北京交通大学 | A kind of parallel resonance short-circuit fault current limiter with series compensating function |
| CN101789589A (en) * | 2010-03-03 | 2010-07-28 | 中国科学院电工研究所 | Mixed-type high-temperature superconducting short trouble current limiter |
| CN102035196A (en) * | 2010-12-30 | 2011-04-27 | 东南大学 | Thyristor controlled series compensator-based fault current limiting device |
| CN201904615U (en) * | 2010-12-30 | 2011-07-20 | 东南大学 | Fault current limiting device based on thyristor controlled series compensation |
| CN102324737A (en) * | 2011-09-14 | 2012-01-18 | 广东电网公司电力科学研究院 | Short-circuit current limiter of power system |
| CN102420422A (en) * | 2011-12-21 | 2012-04-18 | 铜陵浩岩节能科技有限公司 | Intelligent short-circuit current limiter |
| CN202197096U (en) * | 2011-09-14 | 2012-04-18 | 广东电网公司电力科学研究院 | Short-circuit current limiter of electric power system |
| CN202309055U (en) * | 2011-10-19 | 2012-07-04 | 中电普瑞科技有限公司 | Thyristor Controlled Series Compensation (TCSC) unit based on parallel connection of dual TCR (Thyristor Controlled Reactor) branches |
| CN205986160U (en) * | 2016-08-24 | 2017-02-22 | 中电普瑞科技有限公司 | Dynamic voltage restorer with short -circuit current restricts function |
| CN108258669A (en) * | 2018-02-05 | 2018-07-06 | 全球能源互联网研究院有限公司 | A kind of secondary phase changing type direct current limiter and its control method |
-
2018
- 2018-10-30 CN CN201811274423.7A patent/CN109586260A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588746A (en) * | 2004-07-31 | 2005-03-02 | 华中科技大学 | Transformer type adjustable reactor and static reactive compensator compose of it |
| CN2896468Y (en) * | 2006-06-02 | 2007-05-02 | 郑州大学 | Staged loaded pressure-regulation switch |
| CN101609982A (en) * | 2009-07-27 | 2009-12-23 | 北京交通大学 | A kind of parallel resonance short-circuit fault current limiter with series compensating function |
| CN101789589A (en) * | 2010-03-03 | 2010-07-28 | 中国科学院电工研究所 | Mixed-type high-temperature superconducting short trouble current limiter |
| CN102035196A (en) * | 2010-12-30 | 2011-04-27 | 东南大学 | Thyristor controlled series compensator-based fault current limiting device |
| CN201904615U (en) * | 2010-12-30 | 2011-07-20 | 东南大学 | Fault current limiting device based on thyristor controlled series compensation |
| CN102324737A (en) * | 2011-09-14 | 2012-01-18 | 广东电网公司电力科学研究院 | Short-circuit current limiter of power system |
| CN202197096U (en) * | 2011-09-14 | 2012-04-18 | 广东电网公司电力科学研究院 | Short-circuit current limiter of electric power system |
| CN202309055U (en) * | 2011-10-19 | 2012-07-04 | 中电普瑞科技有限公司 | Thyristor Controlled Series Compensation (TCSC) unit based on parallel connection of dual TCR (Thyristor Controlled Reactor) branches |
| CN102420422A (en) * | 2011-12-21 | 2012-04-18 | 铜陵浩岩节能科技有限公司 | Intelligent short-circuit current limiter |
| CN205986160U (en) * | 2016-08-24 | 2017-02-22 | 中电普瑞科技有限公司 | Dynamic voltage restorer with short -circuit current restricts function |
| CN108258669A (en) * | 2018-02-05 | 2018-07-06 | 全球能源互联网研究院有限公司 | A kind of secondary phase changing type direct current limiter and its control method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728571A (en) * | 2018-12-19 | 2019-05-07 | 华北电力大学 | A kind of hybrid fault current limiter of capacitor commutation and its control method |
| CN110176754A (en) * | 2019-05-09 | 2019-08-27 | 华北电力大学 | From bypass type fault current limiter and its control method |
| CN110112718A (en) * | 2019-05-23 | 2019-08-09 | 华北电力大学 | A kind of resistance sense type blended learning topology using precharge commutation capacitor |
| WO2020244015A1 (en) * | 2019-06-04 | 2020-12-10 | 上海交通大学 | Direct current limiter topology suitable for flexible direct current transmission system |
| CN110970875A (en) * | 2019-10-17 | 2020-04-07 | 四川大学 | Combined current-limiting type direct current breaker for direct current power grid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109586260A (en) | A kind of resistance sense type capacitor commutation blended learning and its control method | |
| CN109510182A (en) | A kind of hybrid fault current limiter of resistance sense type and its control method | |
| CN102118019B (en) | Modularized multi-level converter sub-module control and protection method | |
| CN109742739A (en) | A kind of novel multiport current-limiting type dc circuit breaker and its control method | |
| CN107276045B (en) | A kind of mixed DC current limiting circuit breaker | |
| CN102593859B (en) | Three-phase UPQC (Unified Power Quality Controller) topology circuit based on MMC (Multi Media Card) | |
| CN103986342B (en) | A kind of power electronics inverter that can remove bi-directional failure electric current and control method | |
| CN109802365B (en) | Multi-port direct current breaker with energy transfer branch circuit and control method thereof | |
| CN108258669A (en) | A kind of secondary phase changing type direct current limiter and its control method | |
| CN108418192A (en) | A kind of direct current limiter and its control method for coordinating with dc circuit breaker | |
| CN109728571A (en) | A kind of hybrid fault current limiter of capacitor commutation and its control method | |
| CN107728048A (en) | A kind of mixed type high voltage DC breaker pilot system | |
| CN107732954A (en) | A kind of online input control method and device of voltage source converter unit | |
| CN110212505A (en) | The flexible HVDC transmission system current-limiting reactor choosing method of based superconductive current limiter | |
| CN104953571A (en) | Improved MMC (modular multi-level converter) structure with direct current fault clearing capacity | |
| CN109888743A (en) | A kind of decompression clamping type dc circuit breaker suitable for DC grid | |
| CN107800119A (en) | A kind of dc circuit breaker simulation model and method | |
| CN112130063A (en) | Detection and protection method for mechanical switch tripping of hybrid high-voltage direct-current circuit breaker | |
| CN107482576B (en) | A kind of starting control strategy of hybrid high voltage DC breaker | |
| CN110176754A (en) | From bypass type fault current limiter and its control method | |
| CN207010216U (en) | A kind of low-voltage direct breaker | |
| Zhang et al. | Reliability evaluation of modular multilevel converter based on Markov model | |
| Li et al. | Interline dc power flow controller with fault current‐limiting capability | |
| Sujuan et al. | Resistive DC fault current limiter | |
| CN204465022U (en) | A kind of direct-flow distribution system based on modularization multi-level 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |
|
| RJ01 | Rejection of invention patent application after publication |