CN106329496B - Quick fuse device and control method, dc circuit breaker and control method - Google Patents
Quick fuse device and control method, dc circuit breaker and control method Download PDFInfo
- Publication number
- CN106329496B CN106329496B CN201610796914.2A CN201610796914A CN106329496B CN 106329496 B CN106329496 B CN 106329496B CN 201610796914 A CN201610796914 A CN 201610796914A CN 106329496 B CN106329496 B CN 106329496B
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- fuse
- branch
- current
- circuit breaker
- master
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 claims description 5
- 238000010257 thawing Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H02H7/261—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 involving signal transmission between at least two stations
- H02H7/262—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 involving signal transmission between at least two stations involving transmissions of switching or blocking orders
Abstract
The present invention relates to a kind of quick fuse device and control method, dc circuit breaker and control method, quick fuse device therein includes a fuse installation branch for installing fuse, and fuse installation branch is set in the line for going here and there；Quick fuse device further includes that a blowout current generates unit, and the both ends which generates unit are connected in parallel on the both ends for installing branch；Quick fuse device further includes a main control unit, the main control unit controls blowout current and generates unit generation blowout current, when needing quick line disconnection, main control unit control blowout current generates unit and generates the blowout current for flowing through fuse installation branch, and fuse is made to fuse rapidly.The quick fuse device is applied in dc circuit breaker, can be fused by controlling the active of fuse, realize quickly isolating for failure.
Description
Technical field
The present invention relates to a kind of quick fuse device and control method, dc circuit breaker and control methods, and it is disconnected to belong to direct current
Road device technical field.
Background technology
HVDC Transmission Technology development is swift and violent, and especially multi-terminal HVDC transmission has to obtain day in terms of constituting strong intelligent 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 quickly increase, pole
It is big to affect transmission of electricity safety.
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
Critical device the time required to dc circuit breaker drop-out current reduces the direct current since the action that it is opened a sluice gate is relatively slow
Breaker cuts off the speed of failure.
Therefore, the turn-off speed for how further increasing dc circuit breaker realizes promptly isolating for the system failure, to avoid
Fault spread is still one of the technical problem underlying of dc circuit breaker application study.
Invention content
The object of the present invention is to provide a kind of quick fuse device and control methods, when needing quick disjunction, actively control
Fuse blows processed realize the rapid disconnection of circuit；It is a further object of the present invention to provide a kind of dc circuit breaker and controlling parties
Method, to solve the problems, such as quickly isolating for failure in DC transmission system.
In order to solve the above technical problems, the present invention provides the following technical solutions：
A kind of quick fuse control method generates blowout current in the case where needing quick fuse by active control,
Blowout current is set to pass through the fuse in circuit, fuse quick fuse is to realize that circuit is quickly cut off.
Further, the blowout current that the active control generates is pulse current.
A kind of quick fuse device includes a fuse installation branch for installing fuse, the fuse peace
Dress branch is set in the line for going here and there；The quick fuse device further includes that a blowout current generates unit, the fusing electricity
The both ends of stream generation unit are connected in parallel on the both ends of the installation branch, for blowout current to be output to the fuse installation branch
On the road；The quick fuse device further includes a main control unit, and the main control unit controls the blowout current and generates unit
Generate blowout current.
Further, it is pulse current that the blowout current, which generates the blowout current that unit generates,.
A kind of dc circuit breaker, the dc circuit breaker include the through-flow branch of master being connected in parallel, electronic switch branch and
Consume energy branch, and the through-flow branch of master includes a quick fuse device, and the quick fuse device includes one for installing
The fuse of fuse installs branch, and the fuse installation branch is set in the line for going here and there；The quick fuse device is also
Unit is generated including a blowout current, the both ends that the blowout current generates unit are connected in parallel on the both ends for installing branch,
For blowout current to be output to the fuse installation branch road；The quick fuse device further includes a main control unit,
The main control unit controls the blowout current and generates unit generation blowout current.
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 connected, and there are one mechanical switch.
Further, it is pulse current that the blowout current, which generates the blowout current that unit generates,.
A kind of separating brake control method of dc circuit breaker, includes the following steps：
Step 1, when line failure, the through-flow branch of the master of fuse carries out by-path turn-on string；
Step 2, actively apply blowout current at the both ends of the fuse, the fuse is fused, it will be described
Main through-flow branch disconnects；
Step 3, after the through-flow branch of the master disconnects, the bypass is turned off；
Step 4, fault current is consumed by the energy consumption branch for being connected in parallel on the through-flow branch both ends of the master, completes separating brake control.
Further, in step 1 while the by-path turn-on, pass through a switch being connected in main through-flow branch
Module carries out cutout control to the through-flow branch of master.
The beneficial effects of the invention are as follows：
The present invention proposes a kind of quick fuse device, on fuse installation branch road and is connected to blowout current generation list
Member generates unit by blowout current and actively generates blowout current, which is applied to fuse when line failure
On, fuse quick fuse in several milliseconds realizes the rapid cut-out of circuit；The device is applied in breaker, it can be with
The quick disengagement failure electric current of breaker is helped, destruction of the fault current to power supply system and electrical equipment is avoided.
The invention also provides a kind of dc circuit breaker, the through-flow branch road of master of the dc circuit breaker is in series with one quickly
Device for fusing, the device for fusing include that a fuse installs branch and a blowout current generation unit, and event occurs in circuit
In the case of barrier, which generates unit and actively generates blowout current, makes to be connected on molten in the through-flow branch of breaker master
Disconnected device fuses rapidly, realizes rapidly switching off for breaker, carries out quickly isolating for failure, avoids fault current and is to power supply
The destruction of system and electrical equipment.
Description of the drawings
Fig. 1 is quick fuse circuit structure block diagram；
Fig. 2 is direct-current breaker topology Fig. 1；
Fig. 3 is direct-current breaker topology Fig. 2；
Fig. 4 is direct-current breaker topology Fig. 3.
Specific implementation mode
The present invention proposes a kind of quick fuse device and control method, dc circuit breaker and control method, with reference to
The present invention will be further described in detail for attached drawing.
The embodiment of quick fuse control method：
In the power system, in the case that circuit breaks down, fuse needs quick fuse, is produced by active control
Raw blowout current, makes blowout current flow through the fuse in circuit, fuse quick fuse is to realize that circuit is quickly cut off.
Wherein, to make fuse quick fuse, while the phenomenon that be also easy to produce electric arc in view of continuous current, above-mentioned fusing electricity
Pulse current can be used in stream.Since rated current needed for fuse is usually a kind of continuous electricity that achievable fuse fuses rapidly
Stream, therefore to make fuse can be with quick fuse, which needs to be more than rated current needed for fuse.
The embodiment of quick fuse device：
Fig. 1 gives a kind of quick fuse device that the fusing control method can be achieved.The device includes one for pacifying
The fuse for filling fuse installs branch, and fuse installation branch is set in the line for going here and there；The quick fuse device also wraps
It includes a blowout current and generates unit, the both ends which generates unit are connected in parallel on the both ends that fuse installs branch, use
Branch road is installed in blowout current is output to the fuse；The quick fuse device further includes a main control unit, the master
It controls unit and controls the blowout current generation unit generation blowout current.
Wherein, to make fuse quick fuse, while the phenomenon that be also easy to produce electric arc in view of continuous current, above-mentioned fusing electricity
Stream is a kind of pulse current of achievable fuse quick fuse.
The embodiment of the separating brake control method of dc circuit breaker：
Line current it is normal it is through-flow in the case of, main through-flow branch be in open position, and line current, which flows through, leads 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, the separating brake controlling party of dc circuit breaker
Method includes the following steps：
Step 1, the H bridge modules in electronic switch branch, the conducting of electronic switch branch are opened.
Step 2, main control unit driving blowout current generates unit and generates the blowout current for flowing through fuse installation branch, when
When blowout current reaches the action threshold value of fuse, fuse starts quick fuse, and fuses completely in several milliseconds, main
Through-flow branch cutout.
Step 3, after main through-flow branch cutout, the H bridge modules in lock-in control electronic switch branch, fault current is to electronics
The capacitor charging of H bridge modules in switching branches.
Step 4, when the voltage that electronic switch branch generates reaches the action threshold value of energy consumption unit in energy consumption branch, by consuming
The arrester of energy branch consumes fault current, and dc circuit breaker completes disjunction.
In addition, in step 1, it is auxiliary by one be connected in main through-flow branch while electronic switch branch is connected
Help switch module to carry out cutout control to the through-flow branch of master, the auxiliary switch module may be used H bridge modules, half-bridge module or
It is the deformation module of H bridge modules；In step 2, it is a kind of pulse current that blowout current, which generates the blowout current that unit generates,；In step
In rapid 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 switch are first disconnected
H bridge modules in branch.
Dc circuit breaker embodiment 1：
Fig. 2 gives a kind of topological diagram of dc circuit breaker, the dc circuit breaker include the through-flow branch of master being connected in parallel,
Electronic switch branch and energy consumption branch.Wherein, main through-flow branch includes a quick fuse device, which is used for including one
The fuse for installing fuse installs branch, and fuse installation branch is set in the line for going here and there；The quick fuse device is also
Unit is generated including a blowout current, the both ends which generates unit are connected in parallel on the both ends that fuse installs branch,
For blowout current to be output to fuse installation branch road；The quick fuse device further includes a main control unit, master control list
Member control blowout current generates unit and generates blowout current.Electronic switch branch includes the H bridge modules that several are connected in series with, and is used
In the main cocurrent flow branch change of current of auxiliary.The branch that consumes energy includes several arresters, for consuming fault current.
Wherein, half-bridge module in the prior art either H bridge modules can also be used in the H bridge modules in electronic switch branch
Deformation module substitute, electronic switching device IGBT in H bridge modules can also use can be achieved identical function other are complete
Control type power device such as IGCT is substituted.To make fuse quick fuse, while the case where avoid continuous current from being also easy to produce electric arc,
It is a kind of pulse current that achievable fuse fuses rapidly that blowout current, which generates the blowout current that unit generates,.
Dc circuit breaker embodiment 2：
As shown in figure 3, the embodiment is on the basis of Fig. 2, connect an auxiliary switch module in the through-flow branch of master,
The auxiliary switch module specifically uses H bridge modules, 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 modules can also be used in block, and number can be with more than one.
Dc circuit breaker embodiment 3：
As shown in figure 4, the embodiment is on the basis of Fig. 3, a 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 circuit disconnects, it can
By isolated fault.
Claims (8)
1. a kind of dc circuit breaker, the dc circuit breaker includes the through-flow branch of master, electronic switch branch and the consumption being connected in parallel
Energy branch, which is characterized in that the through-flow branch of master includes a quick fuse device, and the quick fuse device includes one
Fuse for installing fuse installs branch, and the fuse installation branch is set in the line for going here and there；The fast fast thawing
Disconnected device further includes that a blowout current generates unit, and the both ends that the blowout current generates unit are connected in parallel on the installation branch
Both ends, for blowout current to be output to fuse installation branch road；The quick fuse device further includes a master
Unit is controlled, the main control unit controls the blowout current and generates unit generation blowout current.
2. dc circuit breaker according to claim 1, which is characterized in that the through-flow branch of master is in series at least one auxiliary
Help switch module.
3. dc circuit breaker according to claim 2, which is characterized in that the through-flow branch of master is also connected, and there are one machineries
Switch.
4. dc circuit breaker according to claim 3, which is characterized in that the blowout current generates the fusing that unit generates
Electric current is pulse current.
5. a kind of quick fuse control method based on dc circuit breaker described in claim 1, which is characterized in that needing quickly
In the case of fusing, blowout current is generated by active control, so that blowout current is passed through the fuse in circuit, fuse is quick
Fusing is to realize that circuit is quickly cut off.
6. quick fuse control method according to claim 5, which is characterized in that the fusing electricity that the active control generates
Stream is pulse current.
7. a kind of separating brake control method of dc circuit breaker, which is characterized in that include the following steps：
Step 1, when line failure, the through-flow branch of the master of fuse carries out by-path turn-on string；
Step 2, actively apply blowout current at the both ends of the fuse, the fuse is fused, the master is led to
Branch is flowed to disconnect；
Step 3, after the through-flow branch of the master disconnects, the bypass is turned off；
Step 4, fault current is consumed by the energy consumption branch for being connected in parallel on the through-flow branch both ends of the master, completes separating brake control.
8. the separating brake control method of dc circuit breaker according to claim 7, which is characterized in that on the side in step 1
While road is connected, cutout control is carried out to the through-flow branch of master by the auxiliary switch module being connected in main through-flow branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610796914.2A CN106329496B (en) | 2016-08-31 | 2016-08-31 | Quick fuse device and control method, dc circuit breaker and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610796914.2A CN106329496B (en) | 2016-08-31 | 2016-08-31 | Quick fuse device and control method, dc circuit breaker and control method |
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| CN106329496A CN106329496A (en) | 2017-01-11 |
| CN106329496B true CN106329496B (en) | 2018-10-19 |
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| US11070049B2 (en) | 2017-11-08 | 2021-07-20 | Eaton Intelligent Power Limited | System, method, and apparatus for power distribution in an electric mobile application using a combined breaker and relay |
| WO2019092103A2 (en) | 2017-11-08 | 2019-05-16 | Eaton Intelligent Power Limited | Power distribution unit and fuse management for an electric mobile application |
| GB2569185A (en) * | 2017-12-11 | 2019-06-12 | Eaton Intelligent Power Ltd | Fault clearing circuitry |
| CN108270198A (en) * | 2018-01-08 | 2018-07-10 | 西安交通大学 | A kind of direct current composite switch apparatus and method of work |
| US11670937B2 (en) | 2019-02-22 | 2023-06-06 | Eaton Intelligent Power Limited | Coolant connector having a chamfered lip and fir tree axially aligned with at least one o-ring |
| 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 |
| CN114172129B (en) * | 2021-12-02 | 2022-06-24 | 中国科学院电工研究所 | Hybrid device solid-state circuit breaker capable of being opened and closed in two directions and started in soft mode and control method |
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| CN106329496A (en) | 2017-01-11 |
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