CN107546726A - Intensive DC de-icing device SVG power models bypass structure and its control method - Google Patents
Intensive DC de-icing device SVG power models bypass structure and its control method Download PDFInfo
- Publication number
- CN107546726A CN107546726A CN201710850621.2A CN201710850621A CN107546726A CN 107546726 A CN107546726 A CN 107546726A CN 201710850621 A CN201710850621 A CN 201710850621A CN 107546726 A CN107546726 A CN 107546726A
- Authority
- CN
- China
- Prior art keywords
- intensive
- power model
- icing device
- operating mechanism
- motor
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
The invention discloses a kind of intensive DC de-icing device SVG power models bypass structure and its control method, bypass structure includes fast chopper, motor-operating mechanism, communication control module and direct-current switch power supply, fast chopper is connected in parallel on the DC output end of power model, the control output end of motor-operating mechanism is connected with the control terminal of fast chopper, and motor-operating mechanism is connected with communication control module, the output end of direct-current switch power supply is connected with motor-operating mechanism, communication control module respectively；The control method of bypass structure detects the quantity of state of power model by communication control module, and the state change of power model is judged according to quantity of state, the on off state of fast chopper is controlled according to the state change of power model, realizes the intensive DC de-icing device SVG power model auto by pass in failure.The present invention have simple in construction, dependable performance, cost economy, it is safe and reliable, easy to implement quick the advantages of.
Description
Technical field
The present invention relates to electrical engineering technology, and in particular to a kind of intensive DC de-icing device SVG power models bypass
Structure and its control method.
Background technology
DC ice melting be transmission line of electricity resist freezing rain and snow disaster most directly effective means, in the winter time the icing phase try hard to keep
The safe and stable operation of bulk power grid is hindered.Intensive DC de-icing device is to have had dynamic reactive concurrently on the basis of DC ice melting
Compensation function, no-power compensation function are realized by SVG.Therefore dynamic passive compensation, pole can be carried out to power network in non-icing phase device
The earth improves utilization ratio of device.Main flow SVG structures are chain structure at present, and each chain link is by N number of identical power model string
Connection form, power model core is H bridge structure inversion units, according to the different connected modes between chain and chain may make up Y types or
△ types.
Because chain link is cascaded structure, the change of breaking down of single power model can cause whole chain link operation irregularity, SVG quilts
Compel out of service.Therefore in order to improve SVG operational reliability, the frequent switching of device is reduced, if should be set in each chain link
Dry redundant power cells.When less than the power cell failure of redundancy number, fault power unit realizes bypass automatically,
Normal cell continues to run with, and ensures chain link normal work.When the power cell quantity being only bypassed is more than redundancy number, device
During chain link failure, device should be out of service.Therefore need, for simple, reliable, the economic bypass circuit of power cell design, to carry
High device serious forgiveness, guarantee SVG is reliable, stable operation.
Bypass structure design at present is divided into two classes, electronic bypass and mechanical by-pass.Electronic bypass can use it is additional it is anti-simultaneously
The controllable devices such as the IGCT or IGBT of connection form bypass path, the driving pulse of IGBT in H bridges are blocked when breaking down, together
When to pass devices continuously send out driving pulse, form path and complete bypass.Electronic bypass quick action, but shortcoming is side
The operating voltage of road device need to similarly configure with electric current with module, and cost is high and poor reliability, controllable devices are once damaged,
Bypass is then caused to be failed.The reliability of mechanical by-pass is far above electronic bypass, but more using conventional in mechanical by-pass structure at present
Single phase ac vacuum circuit breaker, magnetic actuator is equipped with, divide-shut brake is realized to magnet coil electric discharge using electric capacity.This bypass
Structure is complex, and volume is big, and cost is high, it is difficult to promotes the use of a large area.
The content of the invention
The technical problem to be solved in the present invention：For the above mentioned problem of prior art, there is provided a kind of simple in construction, performance can
Lean on, the intensive DC de-icing device SVG power model bypass structures of cost economy, and provide on this basis a kind of intensive
The control method of type DC de-icing device SVG power model bypass structures, can realize intensive DC de-icing device SVG power
The safe and reliable, easy to implement of module efficiently automatically controls.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
On the one hand, the present invention provides a kind of intensive DC de-icing device SVG power model bypass structures, including quicks break
Device, motor-operating mechanism, communication control module and direct-current switch power supply, the fast chopper are connected in parallel on intensive DC ice melting
The DC output end of device SVG power model, the control output end of the motor-operating mechanism and the control of fast chopper
End is connected, and the motor-operating mechanism is connected with communication control module, the output end of the direct-current switch power supply respectively with electricity
Pneumatic operating mechanism, communication control module are connected.
Preferably, the input of the direct-current switch power supply is also associated with energy-storage units, and the output end of energy-storage units is also
It is connected respectively with motor-operating mechanism, communication control module.
Preferably, the fast chopper is three-phase breaker of plastic casing, and the three-phase input of the three-phase breaker of plastic casing
End and three-phase output end are used in parallel.
Preferably, the execution unit of the motor-operating mechanism is low-voltage driving type direct current generator, the low-voltage driving type
Direct current generator with and communication control module be connected to export the status signal of fast chopper.
Preferably, the communication control module is FPGA optical fiber communication modules.
Preferably, the direct-current switch power supply is DC-DC change-over circuits, and the power input of the direct-current switch power supply
It is connected with energy-storage units.
Preferably, the energy-storage units form for super capacitor.
On the other hand, the present invention also provides a kind of foregoing intensive DC de-icing device SVG power model bypass structures
Control method, implementation steps include：
1）The quantity of state of intensive DC de-icing device SVG power model is detected by communication control module, and according to state
Amount judges the state change of intensive DC de-icing device SVG power model, if intensive DC de-icing device SVG work(
Rate module breaks down, then redirects and perform step 2）；If intensive DC de-icing device SVG power model is working properly,
Then redirect and perform step 5）；
2）Whether the power model quantity sum n that communication control module detects current failure power model and bypassed is less than power
Module redundancy configures quantity N, is redirected if meeting and performs step 3）；If being unsatisfactory for, redirect and perform step 7）；
3）Communication control module is sent out to the controller of motor-operating mechanism and intensive DC de-icing device SVG power model
Send bypass action signal；The controller of intensive DC de-icing device SVG power model receives locking after bypass action signal
IGBT driving pulses inside power model；
4）Power supply is provided for motor-operating mechanism by direct-current switch power supply, motor-operating mechanism is after bypass action signal is received
Fast chopper closure is controlled at once, by the DC output end short circuit of intensive DC de-icing device SVG power model so that
Intensive DC de-icing device SVG power model is bypassed；Redirect and perform step 1）；
5）Communication control module is sent out to the controller of motor-operating mechanism and intensive DC de-icing device SVG power model
Send recovery action signal；The controller of intensive DC de-icing device SVG power model unlocks after receiving recovery action signal
IGBT driving pulses inside power model；
6）Power supply is provided for motor-operating mechanism by direct-current switch power supply, motor-operating mechanism is after recovery action signal is received
Control fast chopper to disconnect at once, the DC output end of intensive DC de-icing device SVG power model recovered so that
Intensive DC de-icing device SVG power model normally exports；Redirect and perform step 1）；
7）IGBT driving pulses inside all power models of communication control module locking, send lead-in circuit breaker trip signal, connect
Logical power model storage capacitor lets out energy loop, and device is out of service.
Preferably, the input of the direct-current switch power supply is also associated with energy-storage units, and the output end of energy-storage units is also
It is connected respectively with motor-operating mechanism, communication control module；Step 4）With step 6）In by direct-current switch power supply be electronic behaviour
When mechanism offer power supply is provided, include the working condition of detection direct-current switch power supply, if direct-current switch power supply breaks down,
Directly power supply is provided by energy-storage units for motor-operating mechanism.
The intensive DC de-icing device SVG power models bypass structure tool of the present invention has the advantage that：
The bypass structure of the present invention includes fast chopper, motor-operating mechanism, communication control module and direct-current switch power supply, soon
Fast breaker is connected in parallel on the DC output end of intensive DC de-icing device SVG power model, the control of motor-operating mechanism
Output end is connected with the control terminal of fast chopper, and motor-operating mechanism is connected with communication control module, direct-current switch power supply
Output end be connected respectively with motor-operating mechanism, communication control module, the bypass structure apparatus structure is simple, reliable operation,
IGBT driving pulses and bypass can be quickly completed simultaneously, prevent inside locking power model in the case that power model breaks down
Only power model is damaged, and avoid intensive DC de-icing device causes device integrally to exit fortune because of indivedual abnormal modules
OK, the functional reliability of device is greatly improved.
The control method tool of the intensive DC de-icing device SVG power model bypass structures of the present invention has the advantage that：This
The feelings that the control method of the intensive DC de-icing device SVG power model bypass structures of embodiment breaks down in power model
Under condition, by the control motor-operating mechanism work of communication control module, breaker quick-make is realized, it is reliably other to complete power model
Road, IGBT driving pulses while bypass can be quickly completed inside lock modules in the case that power model breaks down, prevented
Power model is damaged, and avoid intensive DC de-icing device causes device integrally to exit fortune because of indivedual abnormal modules
OK, the functional reliability of device is greatly improved.
Brief description of the drawings
Fig. 1 is the circuit theory schematic diagram of the bypass structure of the embodiment of the present invention
Marginal data：1st, fast chopper；2nd, motor-operating mechanism；3rd, communication control module；4th, direct-current switch power supply；5th, energy storage
Unit.
Embodiment
As shown in figure 1, the intensive DC de-icing device SVG power models bypass structure of the present embodiment includes quicking break
Device 1, motor-operating mechanism 2, communication control module 3 and direct-current switch power supply 4, fast chopper 1 are connected in parallel on intensive direct current and melted
The DC output end of ice production apparatus SVG power model, the control output end of motor-operating mechanism 2 and the control of fast chopper 1
End is connected, and motor-operating mechanism 2 is connected with communication control module 3, the output end of direct-current switch power supply 4 respectively with electric operating
Mechanism 2, communication control module 3 are connected.
In the present embodiment, the input of direct-current switch power supply 4 is also associated with energy-storage units 5, and the output end of energy-storage units 5
Also it is connected respectively with motor-operating mechanism 2, communication control module 3.Energy-storage units 5 are when direct-current switch power supply 4 breaks down
Communication control module and motor-operating mechanism provide instantaneous stand-by power supply, avoid because the failure of direct-current switch power supply 4 and caused by this reality
Applying the intensive DC de-icing device SVG power models bypass structure of example can not act.
In the present embodiment, fast chopper 1 is three-phase breaker of plastic casing, and the three-phase input of the three-phase breaker of plastic casing
End and output end are used in parallel, to realize that through-current capability is lifted.
In the present embodiment, the execution unit of motor-operating mechanism 2 is low-voltage driving type direct current generator, low-voltage driving type direct current
Motor with and communication control module 3 be connected to export the status signal of fast chopper 1.
In the present embodiment, communication control module 3 is FPGA optical fiber communication modules, and the transmission of FPGA optical fiber communication modules signal is fast
Rate is high, low in energy consumption, is communicated through optical fiber and higher level's switch board, realizes electrical isolation, avoids signal transmission by electromagnetic interference.
In the present embodiment, direct-current switch power supply 4 is DC-DC change-over circuits, and the power input of direct-current switch power supply 4 with
Energy-storage units 5 are connected.
In the present embodiment, energy-storage units 5 form for super capacitor.Energy-storage units 5 using super capacitor as energy-storage travelling wave tube,
Small volume, energy storage density is high, and the indoor design of energy-storage units 5 has protection circuit, for preventing input voltage too high or voltage pole
Property mistake causes energy-storage units to damage.
The implementation steps bag of the control method of the intensive DC de-icing device SVG power model bypass structures of the present embodiment
Include：
1）The quantity of state of intensive DC de-icing device SVG power model is detected by communication control module, and according to state
Amount judges the state change of intensive DC de-icing device SVG power model, if intensive DC de-icing device SVG work(
Rate module breaks down, then redirects and perform step 2）；If intensive DC de-icing device SVG power model is working properly,
Then redirect and perform step 5）；
2）Whether the power model quantity sum n that communication control module detects current failure power model and bypassed is less than power
Module redundancy configures quantity N, is redirected if meeting and performs step 3）；If being unsatisfactory for, redirect and perform step 7）；
3）Communication control module is sent out to the controller of motor-operating mechanism and intensive DC de-icing device SVG power model
Send bypass action signal；The controller of intensive DC de-icing device SVG power model receives locking after bypass action signal
IGBT driving pulses inside power model；
4）Power supply is provided for motor-operating mechanism by direct-current switch power supply, motor-operating mechanism is after bypass action signal is received
Fast chopper closure is controlled at once, by the DC output end short circuit of intensive DC de-icing device SVG power model so that
Intensive DC de-icing device SVG power model is bypassed；Redirect and perform step 1）；
5）Communication control module is sent out to the controller of motor-operating mechanism and intensive DC de-icing device SVG power model
Send recovery action signal；The controller of intensive DC de-icing device SVG power model unlocks after receiving recovery action signal
IGBT driving pulses inside power model；
6）Power supply is provided for motor-operating mechanism by direct-current switch power supply, motor-operating mechanism is after recovery action signal is received
Control fast chopper to disconnect at once, the DC output end of intensive DC de-icing device SVG power model recovered so that
Intensive DC de-icing device SVG power model normally exports；Redirect and perform step 1）；
7）IGBT driving pulses inside all power models of communication control module locking, send lead-in circuit breaker trip signal, connect
Logical power model storage capacitor lets out energy loop, and device is out of service.
The control method of the intensive DC de-icing device SVG power model bypass structures of the present embodiment is sent out in power model
In the case of raw failure, control motor-operating mechanism 2 to work by communication control module 3, realize the quick-make of fast chopper 1,
Power model is completed reliably to bypass, can IGBT driving pulses be simultaneously inside lock modules in the case that power model breaks down
Bypass is quickly completed, prevents power model to be damaged, intensive DC de-icing device is avoided and is led because of indivedual abnormal modules
Cause device integrally out of service, greatly improve the functional reliability of device.
In the present embodiment, the input of direct-current switch power supply 4 is also associated with energy-storage units 5, and the output end of energy-storage units 5
Also it is connected respectively with motor-operating mechanism 2, communication control module 3；Step 4）With step 6）In by direct-current switch power supply 4 for electricity
When pneumatic operating mechanism 2 provides power supply, include the working condition of detection direct-current switch power supply 4, if direct-current switch power supply 4 occurs
Failure, then directly provide power supply for motor-operating mechanism 2 by energy-storage units 5.Event occurs in direct-current switch power supply 4 so as to realize
During barrier, instantaneous stand-by power supply is provided for communication control module and motor-operating mechanism, avoids making because of the failure of direct-current switch power supply 4
The intensive DC de-icing device SVG power models bypass structure of cost implementation can not act.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
- A kind of 1. intensive DC de-icing device SVG power model bypass structures, it is characterised in that：Including fast chopper（1）、 Motor-operating mechanism（2）, communication control module（3）And direct-current switch power supply（4）, the fast chopper（1）It is connected in parallel on intensive The DC output end of type DC de-icing device SVG power model, the motor-operating mechanism（2）Control output end and quick Breaker（1）Control terminal be connected, and the motor-operating mechanism（2）With communication control module（3）It is connected, the dc switch Power supply（4）Output end respectively with motor-operating mechanism（2）, communication control module（3）It is connected.
- 2. intensive DC de-icing device SVG power model bypass structures according to claim 1, it is characterised in that：Institute State direct-current switch power supply（4）Input be also associated with energy-storage units（5）, and energy-storage units（5）Output end also respectively with electricity Pneumatic operating mechanism（2）, communication control module（3）It is connected.
- 3. intensive DC de-icing device SVG power model bypass structures according to claim 1, it is characterised in that：Institute State fast chopper（1）For three-phase breaker of plastic casing, and the three-phase input end of the three-phase breaker of plastic casing and output end are simultaneously Connection uses.
- 4. intensive DC de-icing device SVG power model bypass structures according to claim 1, it is characterised in that：Institute State motor-operating mechanism（2）Execution unit be low-voltage driving type direct current generator, the low-voltage driving type direct current generator with and control Communication module processed（3）It is connected to export fast chopper（1）Status signal.
- 5. intensive DC de-icing device SVG power model bypass structures according to claim 1, it is characterised in that：Institute State communication control module（3）For FPGA optical fiber communication modules.
- 6. intensive DC de-icing device SVG power model bypass structures according to claim 1, it is characterised in that：Institute State direct-current switch power supply（4）For DC-DC change-over circuits, and the direct-current switch power supply（4）Power input and energy-storage units （5）It is connected.
- 7. intensive DC de-icing device SVG power model bypass structures according to claim 1, it is characterised in that：Institute State energy-storage units（5）Formed for super capacitor.
- 8. a kind of intensive DC de-icing device SVG power model bypass structures in claim 1~7 described in any one Control method, it is characterised in that implementation steps include：1）The quantity of state of intensive DC de-icing device SVG power model is detected by communication control module, and according to state Amount judges the state change of intensive DC de-icing device SVG power model, if intensive DC de-icing device SVG work( Rate module breaks down, then redirects and perform step 2）；If intensive DC de-icing device SVG power model is working properly, Then redirect and perform step 5）；2）Whether the power model quantity sum n that communication control module detects current failure power model and bypassed is less than power Module redundancy configures quantity N, is redirected if meeting and performs step 3）；If being unsatisfactory for, redirect and perform step 7）；3）Communication control module is sent out to the controller of motor-operating mechanism and intensive DC de-icing device SVG power model Send bypass action signal；The controller of intensive DC de-icing device SVG power model receives locking after bypass action signal IGBT driving pulses inside power model；4）Power supply is provided for motor-operating mechanism by direct-current switch power supply, motor-operating mechanism is after bypass action signal is received Fast chopper closure is controlled at once, by the DC output end short circuit of intensive DC de-icing device SVG power model so that Intensive DC de-icing device SVG power model is bypassed；Redirect and perform step 1）；5）Communication control module is sent out to the controller of motor-operating mechanism and intensive DC de-icing device SVG power model Send recovery action signal；The controller of intensive DC de-icing device SVG power model unlocks after receiving recovery action signal IGBT driving pulses inside power model；6）Power supply is provided for motor-operating mechanism by direct-current switch power supply, motor-operating mechanism is after recovery action signal is received Control fast chopper to disconnect at once, the DC output end of intensive DC de-icing device SVG power model recovered so that Intensive DC de-icing device SVG power model normally exports；Redirect and perform step 1）；7）IGBT driving pulses inside all power models of communication control module locking, send lead-in circuit breaker trip signal, connect Logical power model storage capacitor lets out energy loop, and device is out of service.
- 9. the control method of intensive DC de-icing device SVG power model bypass structures according to claim 8, it is special Sign is, the direct-current switch power supply（4）Input be also associated with energy-storage units（5）, and energy-storage units（5）Output end also Respectively with motor-operating mechanism（2）, communication control module（3）It is connected；Step 4）With step 6）In pass through direct-current switch power supply（4） For motor-operating mechanism（2）When power supply is provided, in addition to detection direct-current switch power supply（4）Working condition, if dc switch Power supply（4）Break down, then pass through energy-storage units（5）Directly it is motor-operating mechanism（2）Power supply is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850621.2A CN107546726A (en) | 2017-09-20 | 2017-09-20 | Intensive DC de-icing device SVG power models bypass structure and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850621.2A CN107546726A (en) | 2017-09-20 | 2017-09-20 | Intensive DC de-icing device SVG power models bypass structure and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107546726A true CN107546726A (en) | 2018-01-05 |
Family
ID=60964136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710850621.2A Pending CN107546726A (en) | 2017-09-20 | 2017-09-20 | Intensive DC de-icing device SVG power models bypass structure and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107546726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994633A (en) * | 2019-11-19 | 2020-04-10 | 广东安朴电力技术有限公司 | Chained SVG chain link module bypass control system and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299572A (en) * | 2008-05-23 | 2008-11-05 | 北京合康亿盛科技有限公司 | Pass-by apparatus for high voltage frequency transformer |
| CN103715643A (en) * | 2013-12-27 | 2014-04-09 | 北京四方继保自动化股份有限公司 | Container type DC deicing system and control method |
| CN106356880A (en) * | 2016-08-31 | 2017-01-25 | 国家电网公司 | MMC converting system and fault-tolerant control method thereof |
| CN106935423A (en) * | 2015-12-31 | 2017-07-07 | 上海良信电器股份有限公司 | Electric operating mechanism of circuit-breaker control device of wireless |
| CN106981980A (en) * | 2017-04-14 | 2017-07-25 | 许继集团有限公司 | A kind of full-bridge MMC starts control method and system |
| CN207691416U (en) * | 2017-09-20 | 2018-08-03 | 湖南省湘电试研技术有限公司 | Intensive DC de-icing device SVG power module bypass structures |
-
2017
- 2017-09-20 CN CN201710850621.2A patent/CN107546726A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299572A (en) * | 2008-05-23 | 2008-11-05 | 北京合康亿盛科技有限公司 | Pass-by apparatus for high voltage frequency transformer |
| CN103715643A (en) * | 2013-12-27 | 2014-04-09 | 北京四方继保自动化股份有限公司 | Container type DC deicing system and control method |
| CN106935423A (en) * | 2015-12-31 | 2017-07-07 | 上海良信电器股份有限公司 | Electric operating mechanism of circuit-breaker control device of wireless |
| CN106356880A (en) * | 2016-08-31 | 2017-01-25 | 国家电网公司 | MMC converting system and fault-tolerant control method thereof |
| CN106981980A (en) * | 2017-04-14 | 2017-07-25 | 许继集团有限公司 | A kind of full-bridge MMC starts control method and system |
| CN207691416U (en) * | 2017-09-20 | 2018-08-03 | 湖南省湘电试研技术有限公司 | Intensive DC de-icing device SVG power module bypass structures |
Non-Patent Citations (1)
| Title |
|---|
| 刘健等: "《配电网故障定位与供电恢复》", 31 December 2012, 中国电力出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994633A (en) * | 2019-11-19 | 2020-04-10 | 广东安朴电力技术有限公司 | Chained SVG chain link module bypass control system and control method thereof |
| CN110994633B (en) * | 2019-11-19 | 2021-09-03 | 广东安朴电力技术有限公司 | Chained SVG chain link module bypass control system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107786188B (en) | LC oscillation based forced current exchange type combined switch | |
| CN203056953U (en) | Driver and bus capacitor discharge circuit thereof | |
| CN109391131A (en) | A kind of submodule of MMC valve by-pass switch driving device | |
| CN107086555A (en) | A kind of DC solid circuit breaker and its control method with adaptive throttling ability | |
| CN104037936B (en) | A kind of distribution transforming economical operation control method realizing backup power automatic switching function | |
| CN107565506A (en) | A kind of dc circuit breaker reclosing control method and device | |
| CN110021919A (en) | Intensive bridge-type multiport mixed DC breaker and control method | |
| CN107947131A (en) | Fault insulation and resume method based on micro- loss combined machine formula dc circuit breaker | |
| CN101895155A (en) | Energy storage device with failure detection and automatic reconstruction function and reconstructing method | |
| CN103632895A (en) | Direct-current circuit breaker | |
| CN107769369A (en) | A kind of composite switch based on coupling negative pressure circuit | |
| CN107612138A (en) | A kind of low-voltage direct-current system | |
| CN104158152B (en) | A kind of motor driver protection circuit and means of defence | |
| CN112865040A (en) | Multi-port direct current circuit breaker and control method thereof | |
| CN108365600A (en) | The faulty line detection method of hybrid dc circuit breaker system and breaker closing | |
| CN103117592A (en) | 220kV spare power automatic switching system and judgment method for bus tie spare power automatic switching mode of spare power automatic switching device | |
| CN104160573A (en) | Backup power system and grounding device for a backup power system | |
| CN107546726A (en) | Intensive DC de-icing device SVG power models bypass structure and its control method | |
| CN207691416U (en) | Intensive DC de-icing device SVG power module bypass structures | |
| CN110518545A (en) | Hybrid high voltage DC breaker based on bidirectional current limiting module | |
| CN207218560U (en) | A kind of concatenation unit and its shunting device for exchanging cascade system | |
| CN109713650A (en) | A kind of low cost DC breaker suitable for overhead line type DC grid | |
| CN106998151A (en) | Multilevel converter based on asymmetric Shuangzi module and half-bridge submodule | |
| CN110091757B (en) | Ground automatic neutral section passing device with redundancy function and control method | |
| CN103618281A (en) | Hybrid type bidirectional full-load direct current cut-off device and cut-off method based on manual zero passage technology |
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: 20180105 |
|
| RJ01 | Rejection of invention patent application after publication |