CN106329534B - The line voltage of distribution network maintains method and apparatus and system - Google Patents
The line voltage of distribution network maintains method and apparatus and system Download PDFInfo
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- CN106329534B CN106329534B CN201510335216.8A CN201510335216A CN106329534B CN 106329534 B CN106329534 B CN 106329534B CN 201510335216 A CN201510335216 A CN 201510335216A CN 106329534 B CN106329534 B CN 106329534B
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Abstract
The invention discloses a kind of line voltages of distribution network to maintain method and apparatus and system.Wherein, this method comprises: whether there is the failure of at least one outlet cable in the outlet cable set that detection switchgear house main bus-bar is connected, wherein include one or more outlet cable in outlet cable set；If it is detected that at least one outlet cable breaks down in outlet cable set, the line voltage for then controlling other outlet cables access distribution network in outlet cable set in addition at least one outlet cable maintains device, wherein, at least one line voltage is configured in the outgoing line cabinet on every outlet cable maintains device；The line voltage of device maintenance switchgear house main bus-bar is maintained by the line voltage in other outlet cables.The present invention is solved the technical problem lower using distribution network safety in operation caused by the prior art.
Description
Technical field
The present invention relates to electric fields, maintain method and apparatus in particular to a kind of line voltage of distribution network
And system.
Background technique
Petroleum & Petrochemical Enterprises distribution network is different from other distribution networks, and induction machine load is more, and safe operation is wanted
Ask also higher, thus, the route design complexity of existing Petroleum & Petrochemical Enterprises distribution network, network load weight.When route occurs
When short trouble, due to line load weight, line voltage distribution will be greatly reduced moment, will easily lead to the line of whole network in this way
The problem of road voltage substantially falls, and in turn results in live high-voltage motor, frequency converter shutdown, influences oil field production.
Currently, in view of the above-mentioned problems, generalling use following measure: as shown in Figure 1, main bus-bar 102 connects multiple outlet electricity
Cable 104, by A.C. contactor 106 be arranged on each outlet cable 104, on the outlet cable 104 high-voltage motor 108,
Frequency converter 110 connects, and realizes that each equipment is not shut down at Voltage Drop (shaking electricity) by the A.C. contactor；Alternatively, such as
Shown in Fig. 2, directly increase anti-shake electric module 202 in the frequency converter 110 on each outlet cable, utilizes the function of anti-shake electric module
Each equipment at Voltage Drop (shaking electricity) is able to achieve not shut down.However, due to the route of Petroleum & Petrochemical Enterprises distribution network
Complexity, this equipment for single outlet increase anti-shake electric module or improve the mode of its A.C. contactor, will necessarily be significantly
It increases input cost, can not achieve and all devices are completely covered, and then lead to not the safety for ensureing the equipment in a wide range of
Operation.
For above-mentioned problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of line voltages of distribution network to maintain method and apparatus and system, at least to solve
Certainly the technical problem lower using distribution network safety in operation caused by the prior art.
According to an aspect of an embodiment of the present invention, the line voltage for providing a kind of distribution network maintains method, comprising:
Whether at least one outlet cable failure is had in the outlet cable set that detection switchgear house main bus-bar is connected, wherein on
Stating includes one or more outlet cable in outlet cable set；If it is detected that above-mentioned at least one in above-mentioned outlet cable set
Outlet cable breaks down, then controls other outlets in above-mentioned outlet cable set in addition to above-mentioned at least one outlet cable
The line voltage that cable accesses distribution network maintains device, wherein configures in the outgoing line cabinet on every above-mentioned outlet cable
At least one above-mentioned line voltage maintains device；Device is maintained to maintain by the above-mentioned line voltage in other above-mentioned outlet cables
The line voltage of above-mentioned switchgear house main bus-bar.
Optionally, whether there is at least one outlet electric in the outlet cable set that above-mentioned detection switchgear house main bus-bar is connected
Cable failure includes: whether to have the route protection connected at least one outlet cable dress in the above-mentioned outlet cable set of detection
Set sending break signal.
Optionally, other outlets in the above-mentioned outlet cable set of above-mentioned control in addition to above-mentioned at least one outlet cable
It includes: other the above-mentioned outlets electricity for controlling and receiving above-mentioned break signal that the line voltage of cable access distribution network, which maintains device,
Cable accesses the reactor in above-mentioned line voltage maintenance device, wherein above-mentioned reactor is for maintaining above-mentioned switchgear house main bus-bar
Line voltage.
Optionally, above-mentioned other above-mentioned outlet cables for controlling and receiving above-mentioned break signal access above-mentioned line voltage dimension
Holding the reactor in device includes: that the control normally closed breaker in parallel with above-mentioned reactor disconnects, concatenated with above-mentioned reactor
Normally opened breaker closing, to access above-mentioned reactor, wherein above-mentioned normally closed breaker and above-mentioned normally opened breaker interlocking connection.
Other side according to an embodiment of the present invention, the line voltage for additionally providing a kind of distribution network maintain device,
It include: to configure at least in the outgoing line cabinet in the outlet cable set that switchgear house main bus-bar is connected on every outlet cable respectively
One above-mentioned line voltage maintains device, wherein include one or more outlet cable in above-mentioned outlet cable set, it is above-mentioned go out
It includes: control switch that line voltage, which maintains device, accesses reactor where above-mentioned line voltage maintenance device for control
It states in outlet cable；Above-mentioned reactor, one end connect above-mentioned outlet cable, and the other end is above-mentioned out by the connection of above-mentioned control switch
Line cable.
Optionally, above-mentioned control switch includes: normally opened breaker, and one end is directly connected to above-mentioned outlet cable, and the other end is logical
It crosses above-mentioned reactor and is connected to above-mentioned outlet cable；Normally closed breaker, in parallel with above-mentioned reactor, both ends are electric with above-mentioned outlet
Cable connection.
Optionally, above-mentioned normally opened breaker and above-mentioned normally closed breaker interlocking connection, wherein above-mentioned normally closed breaker is broken
When opening, above-mentioned normally opened breaker will be closed.
Another aspect according to an embodiment of the present invention, but the line voltage for providing a kind of distribution network maintains system,
Include: that one or more line voltages such as above-mentioned distribution network maintain device, is connected respectively in switchgear house main bus-bar
At least one above-mentioned line voltage of configuration maintains device in outgoing line cabinet in outlet cable set on every outlet cable, wherein
It include one or more outlet cable in above-mentioned outlet cable set；One or more line protective devices, respectively it is above-mentioned go out
Connect at least one above-mentioned line protective devices in line cable set on every outlet cable, above-mentioned line protective devices with it is above-mentioned
Above-mentioned line voltage on outlet cable maintains device series connection；Detection control apparatus is tieed up with one or more above-mentioned line voltages
Device and one or more above-mentioned line protective devices connections are held, for detecting the above-mentioned line at least one outlet cable
When line protection device disconnects, other outlets electricity in above-mentioned outlet cable set in addition to above-mentioned at least one outlet cable is controlled
Above-mentioned line voltage on cable maintains device to access corresponding above-mentioned outlet cable.
Optionally, above-mentioned detection control apparatus includes: one or more controllers, in each above-mentioned line protective devices
At least one above controller is respectively configured, above controller is for detecting above-mentioned line protective devices locating for above controller
Whether disconnect；At least one above-mentioned communicator is respectively configured in one or more communicators in each above-mentioned line protective devices,
Above-mentioned communicator is connect with the above controller in above-mentioned line protective devices, for above-mentioned route locating for above-mentioned communicator
Above-mentioned line voltage on other outlet cables except above-mentioned outlet cable where protective device maintains device to send open circuit
Signal, wherein above-mentioned break signal, which is used to indicate, maintains device to access corresponding above-mentioned outlet cable above-mentioned line voltage.
Optionally, above-mentioned line voltage of the above-mentioned communicator on other above-mentioned outlet cables remains normally closed disconnected in device
Road device sends above-mentioned break signal.
In embodiments of the present invention, at least one outlet cable in detecting outlet cable set that main bus-bar is connected
When failure, other outlet cables access distribution in outlet cable set in addition to the outlet cable of above-mentioned failure will be controlled
The line voltage of network maintains device, maintains device pair using the line voltage on other not out of order outlet cables to realize
Line voltage is adjusted maintenance, to realize the safe operation by maintaining line voltage to guarantee distribution network.And then it solves
The technical problem lower using distribution network safety in operation caused by the prior art.
It further, is by combining normally closed breaker and normally opened disconnected when control accesses above-mentioned line voltage and maintains device
Road device maintains the flexible access of the reactor in device to control line voltage, and then reaches and tie up in time in failure to realize
Hold the purpose of power distribution network line voltage.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is that a kind of line voltage of distribution network according to prior art maintains the schematic diagram of device；
Fig. 2 is that the line voltage of another distribution network according to prior art maintains the schematic diagram of device；
Fig. 3 is that a kind of line voltage of optional distribution network according to an embodiment of the present invention maintains the schematic diagram of method；
Fig. 4 is that a kind of line voltage of optional distribution network according to an embodiment of the present invention maintains the schematic diagram of device；
Fig. 5 is that the line voltage of another optional distribution network according to an embodiment of the present invention maintains the signal of device
Figure；
Fig. 6 is that the line voltage of another optional distribution network according to an embodiment of the present invention maintains the signal of device
Figure；
Fig. 7 is that a kind of line voltage of optional distribution network according to an embodiment of the present invention maintains the schematic diagram of system；
And
Fig. 8 is that the line voltage of another optional distribution network according to an embodiment of the present invention maintains the signal of system
Figure.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, the line voltage for providing a kind of distribution network maintains the embodiment of method, such as Fig. 3 institute
Show, this method comprises:
Whether S302, detecting has the appearance of at least one outlet cable in the outlet cable set that switchgear house main bus-bar is connected
Failure, wherein include one or more outlet cable in outlet cable set；
S304 controls outlet cable collection if it is detected that at least one outlet cable breaks down in outlet cable set
The line voltage of other outlet cables access distribution network in conjunction in addition at least one outlet cable maintains device, wherein
At least one line voltage is configured in the outgoing line cabinet on every outlet cable maintains device；
S306 maintains the line voltage of device maintenance switchgear house main bus-bar by the line voltage in other outlet cables.
Optionally, in the present embodiment, the line voltage of above-mentioned distribution network maintains method to can be, but not limited to be applied to
In the system that 0.4kV grades of Petroleum & Petrochemical Enterprises changed into switchhouse, in detecting outlet cable set that main bus-bar is connected at least
When one outlet cable fault (such as short trouble), due to line load weight, line voltage will be because being influenced by above-mentioned failure
And substantially fall, it is further possible to will lead to equipment downtime.In order to overcome the problems, such as this implementation brought by above-mentioned Voltage Drop
In example, other outlet cables access power distribution network in outlet cable set in addition to the outlet cable of above-mentioned failure will be controlled
The line voltage of network maintains device, maintains device to out using the line voltage on other not out of order outlet cables to realize
Line voltage is adjusted maintenance.It, can be by maintaining line voltage to guarantee power distribution network to realize when detecting line fault
The safe operation of network.
Optionally, in the present embodiment, it can include but is not limited on every outlet cable: line protective devices.Into
Whether one step has at least one outlet electric in the present embodiment in the outlet cable set that detection switchgear house main bus-bar is connected
Cable breaks down
S1, whether detect has the line protective devices connected at least one outlet cable to issue in outlet cable set breaks
Road signal.
It should be noted that in the present embodiment, above-mentioned line protective devices for detect current outlet cable whether mistake
It carries, for example, short trouble.That is, determining that event occurs in the outlet cable when detecting that line protective devices are disconnected because of overload
Barrier, consequently facilitating handling above-mentioned failure in time, maintains the safe operation of distribution network.
Optionally, in the present embodiment, can include but is not limited on every outlet cable: line voltage maintains dress
It sets.That is, in the present embodiment, maintaining device by connecting line voltage on every outlet cable, realizing to distribution
Each outlet cable of network is completely covered, in order to improve the safety of distribution network operation.
Optionally, it maintains to can include but is not limited in device in line voltage: reactor, control switch.To realize
By control switch by reactor flexible access outlet cable, and then inhibit using reactor the electricity of non-faulting outlet cable
Pressure is fallen, to achieve the purpose that maintain line voltage.Wherein, above-mentioned control switch can include but is not limited to: normally closed breaker,
Normally opened breaker, to realize in outlet cable fault, flexibly control accesses the reactor in non-faulting outlet cable, from
And realize the Voltage Drop for inhibiting non-faulting outlet cable, and when outlet cable is normal, then reactor is not accessed, to guarantee
The normal work of line cable is unaffected.
Further, in the present embodiment, normally closed breaker and normally opened breaker interlocking connection, that is to say, that when normally closed disconnected
When road device is disconnected by control, normally opened breaker will be adjusted to be closed therewith.By way of this automatic control, overcome existing
The lower problem of switching efficiency caused by switch is artificially manually adjusted in technology.
By embodiment provided by the present application, at least one goes out in detecting outlet cable set that main bus-bar is connected
When line cable fault, other outlet cables in control outlet cable set in addition to the outlet cable of above-mentioned failure are connect
The line voltage for entering distribution network maintains device, is maintained with realizing using the line voltage on other not out of order outlet cables
Device is adjusted maintenance to line voltage.To realize the safe operation by maintaining line voltage to guarantee distribution network.
Whether as a kind of optional scheme, detecting in the outlet cable set that switchgear house main bus-bar is connected has at least one
The failure of outlet cable includes:
S1, whether detect has the line protective devices connected at least one outlet cable to issue in outlet cable set breaks
Road signal.
It should be noted that in the present embodiment, detecting the line protective devices connected at least one outlet cable
Break signal is issued, i.e., when route disconnects, it is necessary to trigger the line voltage on other outlet cables and device is maintained to start to maintain
Line voltage adjusts maintenance to line voltage to realize in time, causes voltage substantially to fall to avoid due to outlet cable fault,
The problem of in turn resulting in shutdown.
Optionally, in the present embodiment, above-mentioned line protective devices can be, but not limited to for detecting current outlet cable
Whether overload, for example, short trouble.That is, determining that the outlet cable goes out when detecting that line protective devices are disconnected because of overload
Existing failure maintains the safe operation of distribution network consequently facilitating handling above-mentioned failure in time.
By embodiment provided by the present application, by whether having at least one outlet cable in detection outlet cable set
The line protective devices of connection disconnect, to determine whether control access line voltage maintains device to maintain line voltage, thus
It realizes discovery line fault in time, maintenance adjustment is carried out to line voltage convenient for first time, and then improve distribution network operation
Safety.
As a kind of optional scheme, other outlets in outlet cable set in addition at least one outlet cable are controlled
Cable access distribution network line voltage maintain device include:
S1 controls and receives the reactor in other outlet cables access line voltage maintenance device of break signal,
In, reactor is used to maintain the line voltage of switchgear house main bus-bar.
It should be noted that in the present embodiment, above-mentioned reactor is not bulky and operation is easy the limit of fever
Reactor is flowed, but it is small in size, it is at low cost, convenient for the small reactor being directly connected on each outlet cable, for example, three-phase electricity
Anti- device, to realize the line voltage for being applied to maintain switchgear house in large-scale outlet cable.
By embodiment provided by the present application, the reactor in device is maintained to maintain line voltage by line voltage, no
It is only at low cost, it is easy to operate, convenient for being applied in large-scale outlet cable, and the safety of outlet cable application also more
It is high.
As a kind of optional scheme, other outlet cables access line voltage for controlling and receiving break signal maintains dress
Reactor in setting includes:
S1 controls normally closed breaker disconnection in parallel with reactor, and the concatenated normally opened breaker closing of reactor, to connect
Enter reactor, wherein normally closed breaker and normally opened breaker interlocking connection.
It is specifically illustrated in conjunction with following example, it is assumed that include: in the outlet cable set that switchgear house main bus-bar is connected
Outlet cable A to outlet cable C will control outlet cable then when detecting that the line protective devices in outlet cable A disconnect
Line voltage on outlet cable B and outlet cable C in set in addition to outlet cable A maintains device access, specifically, control
Make the normally closed breaker disconnection that the above-mentioned line voltage to be accessed remains in parallel with reactor in device, at the same with normally closed breaker
Interlocking normally opened breaker will be closed, so that outlet cable will be accessed with the concatenated reactor of normally opened breaker by realizing.
By embodiment provided by the present application, disconnected by controlling the normally closed breaker in parallel with reactor, with reactor
Concatenated normally opened breaker closing just accesses reactor in non-faulting outlet cable to realize in outlet cable fault,
To inhibit Voltage Drop, and when outlet cable is normal, then reactor is not accessed into non-faulting outlet cable.
Embodiment 2
According to embodiments of the present invention, the line voltage for providing a kind of distribution network maintains the embodiment of device, outlet electricity
Pressure maintains device to be located in the outgoing line cabinet in the outlet cable set that switchgear house main bus-bar is connected on every outlet cable,
In, it include one or more outlet cable in outlet cable set, as shown in figure 4, line voltage maintenance device includes:
1) control switch 402, for controlling in the outlet cable where reactor access line voltage to be maintained to device；
2) reactor 404, one end connect outlet cable, and the other end connects outlet cable by control switch.
Optionally, in the present embodiment, the line voltage of above-mentioned distribution network maintains device to can be, but not limited to be applied to
In the system that 0.4kV grades of Petroleum & Petrochemical Enterprises changed into switchhouse, in detecting outlet cable set that main bus-bar is connected at least
When one outlet cable fault (such as short trouble), due to line load weight, line voltage will be because being influenced by above-mentioned failure
And substantially fall, it is further possible to will lead to equipment downtime.In order to overcome the problems, such as this implementation brought by above-mentioned Voltage Drop
Example in, line voltage maintain device by control switch 402 control access reactor 404, with realize using it is not out of order its
Line voltage on his outlet cable maintains device to be adjusted maintenance to line voltage.Line fault is being detected to realize
When, it can be by maintaining line voltage to guarantee the safe operation of distribution network.
It should be noted that in the present embodiment, it is above-mentioned for maintain the reactor of line voltage be not it is bulky,
And operation is easy the current-limiting reactor of fever, but it is small in size, it is at low cost, it is small on each outlet cable convenient for being directly connected to
Reactor, for example, three-phase reactor, to realize the outlet electricity for being applied to maintain switchgear house in large-scale outlet cable
Pressure.
Optionally, in the present embodiment, above-mentioned control switch 402 can include but is not limited to: normally closed breaker, normally opened disconnected
Road device, to realize in outlet cable fault, flexibly control accesses the reactor in non-faulting outlet cable, to realize
Inhibit the Voltage Drop of non-faulting outlet cable, and when outlet cable is normal, then reactor is not accessed, to guarantee outlet cable
Normal work it is unaffected.
By embodiment provided by the present application, by control switch by reactor flexible access outlet cable, thus real
Now inhibit Voltage Drop using reactor, to achieve the purpose that maintain line voltage, and then realize to improve distribution network safety
The effect of property.
As a kind of optional scheme, as shown in figure 5, control switch 402 includes:
1) normally opened breaker 502, one end are directly connected to outlet cable 506, and the other end is connected to outlet by reactor 404
Cable 506；
2) normally closed breaker 504, in parallel with reactor 404, both ends are connect with outlet cable 506.
Optionally, in the present embodiment, normally opened breaker 502 and normally closed 504 interlocking connection of breaker, wherein normally closed disconnected
When road device 504 is disconnected, normally opened breaker 502 will closure.For example, as shown in figure 5, normally opened breaker 502 and normally closed breaker
504 are connected by interlocking interconnection 508, and when normally closed breaker 504 is disconnected by control, normally opened breaker 502 can be because of interlocked
With being closed.
Optionally, in the present embodiment, normally opened breaker 502 can be, but not limited to firmly female by three-phase with reactor 404
Line is connected in outlet cable 506.Wherein, reactor 404 is connect by bolt with three-phase hard bus.Further, three-phase is firmly female
Line can be, but not limited to connect by T-type hard bus connector and the formation of outlet cable 506 T.
It is specifically illustrated in conjunction with following example, the line voltage of above-mentioned distribution network maintains the connection structure of device can be with
As shown in Figure 6.Normally opened 502 one end of breaker is connected by three-phase hard bus 602 with reactor 404 (such as three-phase reactor),
The other end is connected to T-type hard bus connector 604 by three-phase hard bus 602, and 404 other end of reactor passes through three-phase hard bus
602 are connected to T-type hard bus connector 604, wherein 404 both ends of reactor can pass through bolt 606 and three-phase hard bus 602
Connection.Further, connect normally closed breaker 504 between two T-type hard bus connectors 604 so that normally closed breaker 504 with
Reactor 404 is in parallel.By the flexible control to breaker 502 and normally closed breaker 504 normally opened in above-mentioned apparatus, realize to electricity
The flexible control of anti-device access outlet cable.
By embodiment provided by the present application, by being used cooperatively for normally opened breaker and normally closed breaker, to guarantee
Flexible control to reactor is realized in outlet cable fault, just accesses reactor in non-faulting outlet cable, to inhibit
Voltage Drop, and when outlet cable is normal, then reactor is not accessed into non-faulting outlet cable, to guarantee outlet cable
It works normally unaffected.Further, the safety of distribution network operation is improved.
Embodiment 3
According to embodiments of the present invention, the line voltage for providing a kind of distribution network maintains the embodiment of system, such as Fig. 7 institute
Show, which includes:
1) line voltage of one or more distribution networks maintains device 702, is connected respectively in switchgear house main bus-bar
At least one line voltage is configured in outgoing line cabinet in outlet cable set on every outlet cable and maintains device, wherein outlet
It include one or more outlet cable in cable set；
2) one or more line protective devices 704, are connected on every outlet cable in outlet cable set respectively
Few line protective devices, line protective devices maintain device to connect with the line voltage on outlet cable；
3) detection control apparatus 706 maintain device and one or more route protections to fill with one or more line voltages
Connection is set, for controlling in outlet cable set when detecting that the line protective devices at least one outlet cable disconnect
Line voltage on other outlet cables in addition at least one outlet cable maintains device to access corresponding outlet cable.
Optionally, in the present embodiment, the line voltage of above-mentioned distribution network maintains system to can be, but not limited to be applied to
In the system that 0.4kV grades of Petroleum & Petrochemical Enterprises changed into switchhouse, the outlet that main bus-bar is connected is detected in detection control apparatus 706
In cable set when at least one outlet cable fault (such as short trouble), due to line load weight, line voltage will because by
It influences to above-mentioned failure and substantially falls, be further possible to will lead to equipment downtime.In order to overcome above-mentioned Voltage Drop institute band
The problem come, in the present embodiment, line voltage maintains system that control is detected other outlets except out of order outlet cable
Line voltage on cable maintains device to access corresponding outlet cable, to realize using on other not out of order outlet cables
Line voltage maintain device maintenance is adjusted to line voltage.To realize when detecting line fault, can pass through
Line voltage is maintained to guarantee the safe operation of distribution network.
It should be noted that in the present embodiment, will be separately connected on every outlet cable in above-mentioned outlet cable set
Line voltage maintains device 702 and line protective devices 704.Optionally, above-mentioned detection control apparatus 706 can be, but not limited to set
Be set to an independent control device, on all outlet cables in outlet cable set line voltage maintain device 702 and
Line protective devices 704 connect, and when detecting that the line protective devices 704 at least one outlet cable disconnect, will control
Line voltage dimension on other outlet cables except the outlet cable that line protective devices 704 have disconnected in outlet cable set
It holds device 702 and accesses corresponding outlet cable, be adjusted maintenance in time to line voltage to realize.Above-mentioned is only that one kind is shown
Example, the present embodiment do not limit this.
Optionally, in the present embodiment, above-mentioned detection control apparatus 706 can be, but not limited to scattering device in every outlet
On cable, for example, can be set in line protective devices 704, it also can be arranged directly on line voltage and maintain device 702
In, for realizing quickly detecting whether place outlet cable breaks down.Above-mentioned is only a kind of example, the present embodiment to this not
It limits.
By embodiment provided by the present application, detect whether outlet cable occurs disconnecting event by line protective devices
Barrier controls the line voltage detected on other outlet cables except out of order outlet cable and maintains if it is detected that disconnecting
Device accesses corresponding outlet cable, is tieed up with the line voltage realized on the outlet cable using other not out of order non-faulting
It holds device and maintenance is adjusted to line voltage.It, can be by maintaining line voltage to realize when detecting line fault
Guarantee the safe operation of distribution network.
As a kind of optional scheme, detection control apparatus 706 includes:
1) one or more controllers, are respectively configured at least one controller, controller in each line protective devices
For detecting whether line protective devices locating for controller disconnect；
2) one or more communicators, are respectively configured at least one communicator, communicator in each line protective devices
It is connect with the controller in line protective devices, for except the outlet cable where line protective devices locating for communicator
Other outlet cables on line voltage maintain device send break signal, wherein break signal be used to indicate by outlet electricity
Pressure maintains device to access corresponding outlet cable.
Optionally, in the present embodiment, line voltage of the communicator on other outlet cables remains normally closed in device
Breaker sends break signal.To realize that instruction receives the normally closed breaker execution opening operation of break signal, while benefit
Closed procedure is executed with the normally opened breaker of mutual lock control, to realize access and the concatenated reactor of normally opened breaker.
It is specifically illustrated in conjunction with following example, as shown in Figure 8, it is assumed that the outlet electricity that switchgear house main bus-bar 802 is connected
In cable set include three outlet cables 804, respectively outlet cable 804-1, outlet cable 804-2 and outlet cable 804-3,
Wherein, at least one line voltage is connected on every outlet cable 804 and maintains device 702 and line protective devices 704, such as Fig. 8
Shown, outlet cable 804-1 connection line voltage maintains device 702-1 and line protective devices 704-1；Outlet cable 804-2
It connects line voltage and maintains device 702-2 and line protective devices 704-2；Outlet cable 804-3 connection line voltage maintains dress
Set 702-3 and line protective devices 704-3.Further, it is assumed that, will be by logical when line protective devices 704-2 detects to disconnect
News device is sent to break signal normally closed breaker and the outlet that the line voltage in outlet cable 804-1 maintains device 702-1
Line voltage in cable 804-3 maintains the normally closed breaker of device 702-3 (as shown in Fig. 8 dotted line), above-mentioned normally closed to indicate
Breaker disconnects, further, control and the above-mentioned normally closed interlocking normally opened breaker closing of breaker, in order to outlet cable 804-
1 and outlet cable 804-3 controls the reactor accessed in corresponding line voltage maintenance device in time, to realize through access
Line voltage maintains the reactor in device to maintain line voltage, and then guarantees the safe operation of distribution network.
By embodiment provided by the present application, by the controller and communicator in line protective devices, realize to out
Line voltage on the outlet cable of other non-faulting except the outlet cable of failure maintains device to send break signal, to refer to
Show that above-mentioned line voltage maintains the normally closed breaker in device to disconnect, and then control normally opened breaker closing, to realize access
Line voltage maintains the reactor in device to maintain line voltage, and then guarantees the safe operation of distribution network.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of line voltage of distribution network maintains method characterized by comprising
Whether at least one outlet cable failure is had in the outlet cable set that detection switchgear house main bus-bar is connected,
In, it include one or more outlet cable in the outlet cable set；
If it is detected that at least one outlet cable described in the outlet cable set breaks down, the outlet cable is controlled
The line voltage of other outlet cables access distribution network in set in addition at least one outlet cable maintains device,
Wherein, at least one described line voltage is configured in the outgoing line cabinet on every outlet cable maintains device；
The outlet for maintaining device to maintain the switchgear house main bus-bar by the line voltage in other described outlet cables is electric
Pressure.
2. the method according to claim 1, wherein the outlet cable that the detection switchgear house main bus-bar is connected
Whether have in set at least one outlet cable failure include:
Whether detect has the line protective devices connected at least one outlet cable to issue open circuit in the outlet cable set
Signal.
3. according to the method described in claim 2, it is characterized in that, in the control outlet cable set except described at least
Except one outlet cable other outlet cables access distribution network line voltage maintain device include:
Control and receive the reactance that other outlet cables described in the break signal access in the line voltage maintenance device
Device, wherein the reactor is used to maintain the line voltage of the switchgear house main bus-bar.
4. according to the method described in claim 3, it is characterized in that, described control and receive described in the break signal other
Outlet cable accesses the line voltage and maintains the reactor in device to include:
Normally closed breaker disconnection in parallel with the reactor is controlled, and the concatenated normally opened breaker closing of the reactor, with
Access the reactor, wherein the normally closed breaker and the normally opened breaker interlocking connection.
5. a kind of line voltage of distribution network maintains device, which is characterized in that go out respectively what switchgear house main bus-bar was connected
At least one described line voltage of configuration maintains device in outgoing line cabinet in line cable set on every outlet cable, wherein institute
Stating includes one or more outlet cable in outlet cable set, and the line voltage maintenance device includes:
Control switch accesses reactor in the outlet cable where the line voltage maintains device for controlling；
The reactor, one end connect the outlet cable, and the other end connects the outlet cable by the control switch；
Wherein, described device is also used to the feelings that at least one outlet cable breaks down in detecting the outlet cable set
Under condition, controls other outlet cables in the outlet cable set in addition at least one outlet cable and access the electricity
Pressure maintains device.
6. device according to claim 5, which is characterized in that the control switch includes:
Normally opened breaker, one end are directly connected to the outlet cable, and the other end is connected to the outlet electricity by the reactor
Cable；
Normally closed breaker, in parallel with the reactor, both ends are connect with the outlet cable.
7. device according to claim 6, which is characterized in that the normally opened breaker and the normally closed breaker interlocking connect
It connects, wherein when the normally closed breaker is disconnected, the normally opened breaker will be closed.
8. a kind of line voltage of distribution network maintains system characterized by comprising
The line voltage of one or more distribution networks as described in any one of claim 5-7 maintains device, is matching respectively
At least one described outlet is configured in outgoing line cabinet in the outlet cable set that electric room main bus-bar is connected on every outlet cable
Voltage maintains device, wherein includes one or more outlet cable in the outlet cable set；
One or more line protective devices connect at least one on every outlet cable in the outlet cable set respectively
The line protective devices, the line protective devices maintain device to connect with the line voltage on the outlet cable；
Detection control apparatus maintains device and one or more line protective devices with one or more line voltages
Connection, for controlling the outlet cable when detecting that the line protective devices at least one outlet cable disconnect
The line voltage on other outlet cables in set in addition at least one outlet cable maintains device access pair
The outlet cable answered.
9. system according to claim 8, which is characterized in that the detection control apparatus includes:
At least one described controller is respectively configured in one or more controllers in each line protective devices, described
Controller is for detecting whether the line protective devices locating for the controller disconnect；
At least one described communicator is respectively configured in one or more communicators in each line protective devices, described
Communicator is connect with the controller in the line protective devices, for the route protection locating for the communicator
The line voltage on other outlet cables except the outlet cable where device maintains device to send break signal,
Wherein, the break signal, which is used to indicate, maintains device to access the corresponding outlet cable line voltage.
10. system according to claim 9, which is characterized in that institute of the communicator on other described outlet cables
Stating line voltage maintains the normally closed breaker in device to send the break signal.
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| CN201510335216.8A CN106329534B (en) | 2015-06-16 | 2015-06-16 | The line voltage of distribution network maintains method and apparatus and system |
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| CN201510335216.8A CN106329534B (en) | 2015-06-16 | 2015-06-16 | The line voltage of distribution network maintains method and apparatus and system |
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| CN203984225U (en) * | 2014-07-09 | 2014-12-03 | 浙江锐帆电力科技有限公司 | A kind of frequency converter low voltage ride through device |
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| CN2125190U (en) * | 1992-07-02 | 1992-12-16 | 河南石油勘探局水电厂 | 35 kv adjustable current-limiting reactor |
| CN2802813Y (en) * | 2005-05-27 | 2006-08-02 | 王川 | Series compensation type non-consumption current-limiting reactor |
| CN203278210U (en) * | 2013-01-22 | 2013-11-06 | 合肥隆科电力设备有限责任公司 | Busbar residual voltage maintaining device |
| CN103762711A (en) * | 2013-12-20 | 2014-04-30 | 神华集团有限责任公司 | Coal mine system power source switching method and device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106329534A (en) | 2017-01-11 |
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