CN106229952B - Fuse assembling device and control method, dc circuit breaker and control method - Google Patents
Fuse assembling device and control method, dc circuit breaker and control method Download PDFInfo
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- CN106229952B CN106229952B CN201610793109.4A CN201610793109A CN106229952B CN 106229952 B CN106229952 B CN 106229952B CN 201610793109 A CN201610793109 A CN 201610793109A CN 106229952 B CN106229952 B CN 106229952B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 34
- 238000005265 energy consumption Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/267—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for parallel lines and wires
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
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- Fuses (AREA)
Abstract
The present invention relates to a kind of fuse assembling device and control methods, dc circuit breaker and control method, wherein fuse assembling device includes fuse control unit and fuse combination unit；Fuse control unit includes that main control unit, gating switch driving unit and blowout current generate unit；Fuse combination unit includes gating switch and the combination mounting device for installing fuse；The combination mounting device installs branch equipped with two or more fuses, and one end of every fuse installation branch is connected in the correspondence gated end of gating switch, and the other end is shorted together the shorted end to form combination mounting device；One end that blowout current generates unit is connected to the common end of gating switch, and the other end is connected to the shorted end of combination mounting device.Fuse assembling device is applied in dc circuit breaker, is switched by the selection that the active fusing of fuse and fuse install branch, realizes the rapid recovery of failure quickly isolated with power supply line.
Description
Technical field
The present invention relates to a kind of fuse assembling device and control methods, dc circuit breaker and control method, belong to direct current
Breaker technical field.
Background technique
HVDC Transmission Technology development is swift and violent, and especially multi-terminal HVDC transmission has to obtain day in terms of constituting strong smart grid
Solely thick advantage plays significant role in terms of atmospheric haze is administered and promotes socio-economic development.However, in high-voltage dc transmission
In electric system, DC Line Fault ride-through capability is limited, and when phyletic line road short trouble, fault current can be quicklyd increase, pole
Transmission of electricity safety is affected greatly.
As a kind of capital equipment for ensureing DC transmission system safe operation, high voltage DC breaker is disconnected with regular alternating current
Road device is compared, it is desirable that quick action, it usually needs in several milliseconds of internal cutting off fault currents.Publication No. CN103280763A
Patent of invention " a kind of dc circuit breaker and its implementation " disclose a kind of dc circuit breaker, which is utilized simultaneously
The small mechanical switch of conduction loss and the rapid all-controlling power electronics device of drop-out current.But mechanical switch is as decision
It is straight to reduce this since the movement that it closes a floodgate and opens a sluice gate is relatively slow for the critical device of dc circuit breaker drop-out current time
Flow the speed of breaker excision failure.
Therefore, the separating brake and closing speed of dc circuit breaker how to be further increased, come realize failure it is quick excision with
And the fast quick-recovery of route, become the technical problem underlying of dc circuit breaker application study.
Summary of the invention
The object of the present invention is to provide a kind of fuse assembling device and control method, dc circuit breaker and control method,
To solve the quick excision of failure and the fast recovery problem of route in DC transmission system.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of active Fuse Type fuse assembling device, the fuse assembling device include fuse control unit and melt
Disconnected device assembled unit；The fuse control unit includes that main control unit, gating switch driving unit and blowout current generate list
Member；The fuse combination unit includes gating switch and the combination mounting device for installing fuse；The combination installation
Device installs branch equipped with two or more fuses, and one end of every fuse installation branch is connected to the gating
In the correspondence gated end of switch, the other end is shorted together the shorted end to form the combination mounting device；The blowout current
The one end for generating unit output end is connected to the common end of the gating switch, and the other end is connected to the combination mounting device
Shorted end；The gating switch driving unit drives the gating contact of the gating switch to switch different gated ends, the master
It controls unit and controls the blowout current generation unit generation blowout current.
Further, the main control unit control connects the gating switch driving unit.
Further, the gating switch is change-over switch.
Further, it is pulse current that the blowout current, which generates the blowout current that unit generates,.
A kind of closure control method of active Fuse Type fuse assembling device leads in the case where needing quick-make
It crosses and the fuse installation branch that cannot be connected being series in route is switched to the unblown fuse installation of a fuse
Branch, to realize the quick-make of route.
Further, the fuse that cannot be connected being series in route is installed by branch switching by a gating switch
The fuse unblown to a fuse installs branch.
Further, the gating switch is change-over switch.
A kind of high voltage DC breaker that actively fuses, the breaker include the through-flow branch of master, the electronic cutting being connected in parallel
Branch and energy consumption branch are closed, the through-flow branch of master includes an active Fuse Type fuse assembling device, the fuse group
Clutch part includes fuse control unit and fuse combination unit；The fuse control unit includes main control unit, gating
It switchs driving unit and blowout current generates unit；The fuse combination unit includes gating switch and for installing fuse
Combination mounting device；The combination mounting device installs branch, every fuse equipped with two or more fuses
One end of installation branch is connected in the correspondence gated end of the gating switch, and the other end is shorted together to form the combination peace
The shorted end of assembling device；One end that the blowout current generates unit output end is connected to the common end of the gating switch, separately
One end is connected to the shorted end of the combination mounting device；The gating switch driving unit drives the gating of the gating switch
Contact switches different gated ends, and the main control unit controls the blowout current and generates unit generation blowout current.
Further, the main control unit control connects the gating switch driving unit.
Further, the gating switch is change-over switch.
Further, it is pulse current that the blowout current, which generates the blowout current that unit generates,.
Further, the through-flow branch of the master is in series at least one auxiliary switch module.
Further, the through-flow branch of the master is also in series with a mechanical switch.
A kind of shutting-brake control method for the high voltage DC breaker that actively fuses, comprising the following steps:
1) when power supply system needs to be closed, by-path turn-on is carried out to the through-flow branch of master；
2) fusing is switched to by the way that the fuse that cannot be connected for being series at the through-flow branch of the master is installed branch
The unblown fuse of device installs branch；
3) after the completion of the fuse installation branch switching, the bypass is turned off；
4) line current all passes through the through-flow branch of the master, completes shutting-brake control.
Further, in step 1) after carrying out by-path turn-on to the through-flow branch of master, control closure is connected on main through-flow branch
Auxiliary switch module in road.
Further, will to be series at cannot being connected for the through-flow branch of the master by gating switch in step 2) molten
Disconnected device installation branch is switched to the unblown fuse installation branch of a fuse.
Further, the gating switch is change-over switch.
The beneficial effects of the present invention are:
The invention proposes a kind of active Fuse Type fuse assembling device, which includes one and is used for
The combination mounting device and blowout current for installing fuse generate unit and are produced when needing quick disjunction route by blowout current
Raw unit actively generates blowout current, melts the fuse being connected in the through-flow branch of breaker master rapidly in several milliseconds
It is disconnected, realize the quick disjunction of route；The fuse assembling device further includes a gating switch, is needing quick-make route
When, the fuse installation branch that cannot be connected for being series at main through-flow branch is switched to a fusing by using gating switch
The unblown fuse of device installs branch, realizes the quick-make of route.
The invention also provides a kind of high voltage DC breakers that actively fuses, and it is molten which uses an active
Disconnected formula fuse assembling device, the fuse assembling device include one for installing combination mounting device and the fusing of fuse
Current generating unit in the case where line failure, generates unit by blowout current and actively generates blowout current, make to be connected on
Fuse in breaker master is through-flow branch fuses rapidly in several milliseconds, realizes the quick acting switching-off of breaker, reliably every
From failure, destruction of the fault current to equipment and route is avoided；The fuse assembling device further includes a gating switch, is being needed
In the case where wanting rapid closing, the fuse installation branch that cannot be connected of main through-flow branch will be series at by using gating switch
Road is switched to the unblown fuse installation branch of a fuse, realizes the fast quick-recovery of power supply system, improves equipment dimension
The efficiency of shield, reduces labor intensity.
Detailed description of the invention
Fig. 1 is the structural block diagram of fuse assembling device；
Fig. 2 is the high-voltage direct-current breaker topology Fig. 1 that actively fuses；
Fig. 3 is the high-voltage direct-current breaker topology Fig. 2 that actively fuses；
Fig. 4 is the high-voltage direct-current breaker topology Fig. 3 that actively fuses.
Specific embodiment
The invention proposes a kind of fuse assembling device and control methods, dc circuit breaker and control method, tie below
Closing attached drawing, the present invention will be further described in detail.
Active Fuse Type fuse assembling device embodiment:
As shown in Figure 1, the fuse assembling device includes fuse control unit and fuse combination unit, wherein fusing
Device control unit includes that main control unit, gating switch driving unit and blowout current generate unit, and fuse combination unit includes
Gating switch and combination mounting device for installing fuse.Combining mounting device, the fuse equipped with two or more is installed
One end of branch, every fuse installation branch is connected in the correspondence gated end of gating switch, all to install the another of branches
End is shorted together the shorted end to form combination mounting device.One end that blowout current generates unit output end is connected to gating and opens
The common end of pass, the other end is connected to the shorted end of combination mounting device, for blowout current to be output to combination mounting device.
The gating contact of gating switch driving unit driving gating switch switches different gated ends, and main control unit controls blowout current and produces
Raw unit generates blowout current.
Wherein, gating switch is a change-over switch, is also possible to other achievable lines that can bear high-voltage large current
Other selection switching devices that road reliably switches rapidly.Main control unit control gating switch driving unit drives the change-over switch
Disconnecting link acts, and in the line by different fuse installation branch series connection, i.e., realization blowout current generates unit and melts in different
It is switched between disconnected device installation branch.
Blowout current is a kind of pulse current, can make fuse quick fuse, while it is easy to avoid continuous blowout current
The phenomenon that generating electric arc.
The embodiment of the control method of active Fuse Type fuse assembling device:
The control method includes disjunction control method and closure control method.Wherein, disjunction control method are as follows: needing fastly
In the case that fast thawing is disconnected, blowout current is generated by active control, makes the fuse peace of blowout current in the line by series connection
Branch is filled, fuse quick fuse is to realize that route is quickly cut off.
Closure control method are as follows: in the case where needing quick-make, by the way that cannot be connected in route will be series at
Fuse installation branch is switched to the unblown fuse installation branch of a fuse, to realize the quick-make of route.
In above-mentioned disjunction control method, the blowout current of generation is a kind of pulse current, which flows through fusing
Device installs branch, for realizing the quick fuse of fuse, while avoiding the phenomenon that continuous blowout current is also easy to produce electric arc.
In above-mentioned closure control method, the fuse that cannot be connected that will be series in route by a gating switch
Installation branch is switched to the unblown fuse installation branch of a fuse, which is a change-over switch, can also
To be that other can realize other selection switching devices that route reliably switches rapidly.
Actively fuse high voltage DC breaker embodiment 1:
As shown in Fig. 2, the breaker includes the through-flow branch of master being connected in parallel, electronic switch branch and energy consumption branch.Its
The middle through-flow branch of master includes an active Fuse Type fuse assembling device, which includes that fuse control is single
Member and fuse combination unit, wherein fuse control unit includes main control unit, gating switch driving unit and blowout current
Unit is generated, fuse combination unit includes gating switch and the combination mounting device for installing fuse.Combination installation dress
The fuse installation branch equipped with two or more is set, one end of every fuse installation branch is connected to the correspondence of gating switch
In gated end, the other end of all installation branches is shorted together the shorted end to form combination mounting device.Blowout current generates
One end of unit output end is connected to the common end of gating switch, and the other end is connected to the shorted end of combination mounting device, is used for
Blowout current is output to combination mounting device.The gating contact of gating switch driving unit driving gating switch switches different
Gated end, main control unit control blowout current and generate unit generation blowout current.Electronic switch branch includes that several series connection connect
The H bridge module connect, for assisting the main cocurrent flow branch change of current.The branch that consumes energy includes several arresters, for consuming fault current.
Wherein, half-bridge module in the prior art either H bridge module can also be used in the H bridge module in electronic switch branch
Deformation module substitute, electronic switching device IGBT in H bridge module can also using can be achieved identical function other are complete
Control type power device such as IGCT is substituted.
Gating switch is a change-over switch, other selections that being also possible to other can realize that route reliably switches rapidly are opened
Close device.Main control unit control gating switch driving unit drives the disconnecting link of the change-over switch to act, and different fuses is pacified
Fill branch series connection in the line, i.e., realization blowout current generates unit and switches between different fuse installation branches.
Blowout current is a kind of pulse current, can make fuse quick fuse, while it is easy to avoid continuous blowout current
The phenomenon that generating electric arc.
Actively fuse high voltage DC breaker embodiment 2:
As shown in figure 3, the embodiment is to connect an auxiliary switch module on the basis of Fig. 2 in the through-flow branch of master,
The auxiliary switch module specifically uses H bridge module, for the auxiliary electron switching branches change of current.Similarly, the auxiliary switch mould
The deformation module of half-bridge module in the prior art either H bridge module can also be used in block, and number can be with more than one.
Active Fuse Type high voltage DC breaker embodiment 3:
As shown in figure 4, the embodiment is on the basis of Fig. 3, machinery of having connected again on the through-flow branch road of master is opened
It closes.After the fuse quick fuse of the through-flow branch of master, by disconnecting the mechanical switch, realize that the physics of route disconnects, it can
By isolated fault.
Actively fuse the control method embodiment of high voltage DC breaker:
The control method includes separating brake control method and shutting-brake control method, and wherein separating brake control method includes in following
Hold:
For line current normally in through-flow situation, main through-flow branch is in open position, and line current flows through main through-flow branch
Fuse branch is installed, electronic switch branch be in disconnection state, and no current flows through, and the branch that consumes energy is in disconnection state, nothing
Electric current flows through.
When power supply system breaks down, the quick disjunction of system requirements dc circuit breaker, actively fuse high voltage DC breaker
Separating brake control method the following steps are included:
(1) the H bridge module in electronic switch branch, the conducting of electronic switch branch are opened.
(2) main control unit driving blowout current generates unit and generates the blowout current for flowing through fuse installation branch, when molten
When power-off stream reaches the movement threshold value of fuse, fuse starts quick fuse, and fuses completely in several milliseconds, main logical
Flow branch cutout.
(3) after main through-flow branch cutout, the H bridge module in lock-in control electronic switch branch, fault current is to the electricity
The capacitor charging of H bridge module in sub switch branch.
(4) when the voltage that electronic switch branch generates reaches the movement threshold value for the unit that consumes energy in energy consumption branch, by consuming energy
The arrester of branch consumes fault current, and dc circuit breaker completes disjunction.
In addition, after the conducting of electronic switch branch, can also be connected in main through-flow branch by disconnecting in step (1)
Auxiliary switch module to assist leading the cutout of through-flow branch, the auxiliary switch module can using H bridge module, half-bridge module or
It is the deformation module of H bridge module；In step (2), it is a kind of pulse current that blowout current, which generates the blowout current that unit generates,；Step
Suddenly in (3), after the through-flow branch cutout of master, the mechanical switch for being connected on main through-flow branch, then lock-in control electronic cutting are first disconnected
Close the H bridge module in branch.
The shutting-brake control method of high voltage DC breaker of actively fusing includes the following contents:
For line current in disjunction, main through-flow branch is in disconnection state, and line circuit no current flows through, electronic cutting
It closes branch and is in disconnection state, no current flows through, and energy consumption branch is also at disconnection state, and no current flows through.
When high voltage DC breaker, which receives top level control system, issues reclosing command, the high voltage direct current that actively fuses open circuit
The shutting-brake control method of device the following steps are included:
1) the H bridge module in electronic switch branch, the conducting of electronic switch branch are opened.
2) the gating contact action of breaker main control unit control gating switch driving unit driving change-over switch, makes to convert
Switching installs branch, main through-flow branch conducting to the unblown fuse of a fuse.
3) after the completion of the switching of fuse installation branch, the H bridge module in lock-in control electronic switch branch turns off electronic cutting
Close branch.
4) line current all passes through the through-flow branch of the master, completes shutting-brake control.
In step 1), closure is connected on the mechanical switch in main through-flow branch first, then bypasses to the through-flow branch of master
Conducting, after carrying out by-path turn-on to the through-flow branch of master, control closure is connected on the auxiliary switch module in main through-flow branch；Step
It is rapid 2) in, branch is installed by the fuse that cannot be connected that a gating switch will be series at main through-flow branch and is switched to one
The unblown fuse installation branch of fuse leads through-flow branch conducting for making, which can be change-over switch,
It can be other devices that the handoff functionality can be achieved.
Claims (10)
1. a kind of active Fuse Type fuse assembling device, which is characterized in that the fuse assembling device includes fuse control
Unit and fuse combination unit processed；The fuse control unit includes main control unit, gating switch driving unit and fusing
Current generating unit；The fuse combination unit includes gating switch and the combination mounting device for installing fuse；Institute
Combination mounting device is stated equipped with two or more fuse installation branches, one end connection of every fuse installation branch
In the correspondence gated end of the gating switch, the other end is shorted together the shorted end to form the combination mounting device；Institute
The one end for stating blowout current generation unit output end is connected to the common end of the gating switch, and the other end is connected to the combination
The shorted end of mounting device；The gating switch driving unit drives the gating contact of the gating switch to switch different gatings
End, the main control unit control the blowout current and generate unit generation blowout current.
2. active Fuse Type fuse assembling device according to claim 1, which is characterized in that the main control unit control
Connect the gating switch driving unit.
3. active Fuse Type fuse assembling device according to claim 2, which is characterized in that the gating switch is to turn
Change switch.
4. active Fuse Type fuse assembling device according to any one of claim 1 to 3, which is characterized in that described
It is pulse current that blowout current, which generates the blowout current that unit generates,.
5. a kind of active Fuse Type fuse assembling device based on active Fuse Type fuse assembling device described in claim 1
Closure control method, which is characterized in that in the case where needing quick-make, by the way that cannot be connected in route will be series at
Fuse installation branch be switched to a fuse it is unblown fuse installation branch, to realize the quick-make of route.
6. the closure control method of active Fuse Type fuse assembling device according to claim 5, which is characterized in that logical
Crossing a gating switch, to be switched to a fuse unblown by the fuse installation branch that cannot be connected being series in route
Fuse install branch.
7. the closure control method of active Fuse Type fuse assembling device according to claim 6, which is characterized in that institute
Stating gating switch is change-over switch.
8. a kind of high voltage DC breaker that actively fuses, the breaker includes the through-flow branch of master, the electronic switch being connected in parallel
Branch and energy consumption branch, which is characterized in that the through-flow branch of master includes an active Fuse Type fuse assembling device, described
Fuse assembling device includes fuse control unit and fuse combination unit；The fuse control unit includes master control list
Member, gating switch driving unit and blowout current generate unit；The fuse combination unit includes gating switch and for pacifying
Fill the combination mounting device of fuse；The combination mounting device installs branch, every institute equipped with two or more fuses
The one end for stating fuse installation branch is connected in the correspondence gated end of the gating switch, and the other end is shorted together to form institute
State the shorted end of combination mounting device；One end that the blowout current generates unit output end is connected to the public affairs of the gating switch
End altogether, the other end are connected to the shorted end of the combination mounting device；The gating switch driving unit driving gating is opened
The gating contact of pass switches different gated ends, and the main control unit controls the blowout current and generates unit generation fusing electricity
Stream.
9. a kind of conjunction of high voltage DC breaker that actively fuses based on the high voltage DC breaker that actively fuses described in claim 8
Lock control method, which comprises the following steps:
1) when power supply system needs to be closed, by-path turn-on is carried out to the through-flow branch of master；
2) fuse is switched to not by the way that the fuse that cannot be connected for being series at the through-flow branch of the master is installed branch
The fuse of fusing installs branch；
3) after the completion of the fuse installation branch switching, the bypass is turned off；
4) line current all passes through the through-flow branch of the master, completes shutting-brake control.
10. the shutting-brake control method of the high voltage DC breaker according to claim 9 that actively fuses, which is characterized in that step
It is rapid 1) in after carrying out by-path turn-on to the through-flow branch of master, control closure is connected on the auxiliary switch module in main through-flow branch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610793109.4A CN106229952B (en) | 2016-08-31 | 2016-08-31 | Fuse assembling device and control method, dc circuit breaker and control method |
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| CN201610793109.4A CN106229952B (en) | 2016-08-31 | 2016-08-31 | Fuse assembling device and control method, dc circuit breaker and control method |
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| CN106229952B true CN106229952B (en) | 2018-12-07 |
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| EP3913805A4 (en) * | 2019-01-14 | 2022-09-14 | Global Energy Interconnection Research Institute Co., Ltd | Full-bridge module, hybrid direct current circuit breaker of full-bridge module, and application method |
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| CN107317298B (en) * | 2017-06-26 | 2019-10-18 | 张宁 | Automatic recovery type power fuse |
| GB2569185A (en) * | 2017-12-11 | 2019-06-12 | Eaton Intelligent Power Ltd | Fault clearing circuitry |
| CN111697532B (en) * | 2020-05-22 | 2021-12-14 | 华为数字能源技术有限公司 | Disconnection method and disconnection system of fuse |
| CN112615358A (en) * | 2020-12-22 | 2021-04-06 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Ship direct-current networking electric propulsion system and short-circuit fault rapid protection method |
| CN216162400U (en) * | 2021-07-02 | 2022-04-01 | 西安交通大学 | Combined DC protective switch device |
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| CN203871850U (en) * | 2014-04-30 | 2014-10-08 | 广州西门子变压器有限公司 | Protection device of power system and power system thereof |
| CN104113057A (en) * | 2014-07-01 | 2014-10-22 | 西安交通大学 | Combined type direct current switch equipment and control method thereof |
| CN104242265A (en) * | 2014-08-29 | 2014-12-24 | 荣信电力电子股份有限公司 | Full-solid-state direct-current circuit breaker of direct-current power distribution network |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3913805A4 (en) * | 2019-01-14 | 2022-09-14 | Global Energy Interconnection Research Institute Co., Ltd | Full-bridge module, hybrid direct current circuit breaker of full-bridge module, and application method |
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