CN209570659U - A kind of low-voltage platform area electric topology device for identifying - Google Patents
A kind of low-voltage platform area electric topology device for identifying Download PDFInfo
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- CN209570659U CN209570659U CN201820686951.2U CN201820686951U CN209570659U CN 209570659 U CN209570659 U CN 209570659U CN 201820686951 U CN201820686951 U CN 201820686951U CN 209570659 U CN209570659 U CN 209570659U
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Abstract
A kind of low-voltage platform area electric topology device for identifying, is related to electric topology device for identifying.Mesh foreground partition recognition principle carries out voltage over zero signal modulation mode, there are phase lines and neutral conductor long-time short-circuit risks for this scheme frequently with phase line and the short circuit of middle line short time.The utility model includes: the detection end host set on distribution transforming head end line side, and what is be connected set on the wireline inspection terminal slave of branch point or electricity box side, with wireline inspection terminal slave is used to generate the idle pulse generation circuit of idle pulse；By being wirelessly connected between the detection end host and wireline inspection terminal slave, it is connected by communication between the wireline inspection terminal slave and corresponding concentrator.The technical program can automatically generate platform area electric topology, realize the identification of electric supply meter platform area and fault location.
Description
Technical field
The utility model relates to electric topology device for identifying more particularly to a kind of low-voltage platform area electric topology device for identifying.
Background technique
Low-voltage platform area transformer is there are following Railway Project at present, 1) old area user is routed complicated, data it is incomplete or
Person does not update；2) the adjacent intersection in platform area is created, often there are more transformers in same switchgear house, due to adjacent close, and is same
One group of high voltage bus can not correctly determine that electric supply meter platform area belongs to；3) electric topology configuration data in low-voltage platform area is even more incomplete,
It updates not in time, it, can not rapid fault location when failure.
Platform area electric topology relationship is automatically generated currently without application, realizes the identification of platform area, and mesh foreground partition recognition principle is normal
Using phase line and the short circuit of middle line short time, voltage over zero signal modulation mode is carried out, there are phase lines and the neutral conductor for this scheme
Long-time short-circuit risks cause equipment burnout or lead to platform area fault outage.
Utility model content
The technical problems to be solved in the utility model and the technical assignment of proposition be prior art is carried out improve with
It improves, a kind of low-voltage platform area electric topology device for identifying is provided, to achieve the purpose that identify platform area electric topology relationship.For this purpose,
The utility model takes following technical scheme.
A kind of low-voltage platform area electric topology device for identifying, comprising: the detection end host set on distribution transforming head end line side, if
Wireline inspection terminal slave, the idle pulse or reactive current that are connected with wireline inspection terminal slave in branch point or electricity box side
The signal generating circuit of pulse；It is described by being wirelessly connected between the detection end host and wireline inspection terminal slave
Wireline inspection terminal slave and corresponding concentrator between be connected by communication, the detection end host and slave have GPS,
Beidou positioning module.Wireline inspection end host is by micropower radio broadcasting power distribution station perimeter circuit detection terminal slave
Location inquiry, collects wireline inspection terminal slave addresses, allows the movement of wireline inspection terminal slave to generate idle pulse train, passes through inspection
The idle pulse train surveyed on bus carries out the identification judgement of platform area, by analyzing each node logical relationship, forms electric topology and patrols
The relationship of collecting.
As optimization technique means: logical by local wireless between wireline inspection end host and wireline inspection terminal slave
Reliable existing wireless network is connected, and wireline inspection terminal slave is connected by communication by RS485 communication interface and the concentrator in electricity box.
As optimization technique means: the signal generating circuit includes power relay J1, power relay J2, power
Relay J3, with power relay J3 concatenated silicon-controlled T1 and power capacitor C1, magnetic in parallel with silicon-controlled T1 keep after
Electric appliance J4, the power relay J1, power relay J2, power relay J3 are sequentially connected.
As optimization technique means: wireline inspection terminal slave has fault current detection and remote signalling amount acquisition module, leads to
Cross remote signalling amount acquisition feeder pillar body in circuit breaker switch state come judge position of failure point or route bifurcation acquire failure
Electric current judges position of failure point.
The utility model has the advantages that the technical program can automatically generate platform area electric topology, the identification of electric supply meter platform area and event are realized
Barrier positioning, provides data supporting for low-voltage line guard and analysis, helps to support the analysis of low-pressure side line loss lean, low-voltage circuit
Low-voltage distribution network fortune inspection working efficiency can be improved in impedance analysis.
The technical program not by power line channel adverse circumstances, strong noise and it is highly attenuating influenced, it is automatic raw without power-off
At each branch node electric topology logical relation of route.
Detailed description of the invention
Fig. 1 is the structure principle chart of the utility model.
Fig. 2 is the idle pulse train electrical schematic diagram of generation of the utility model.
Fig. 3 is that the platform area of the utility model shows arborescence.
Fig. 4 is the platform area electric topology figure of the utility model.
Specific embodiment
The technical solution of the utility model is described in further detail below in conjunction with Figure of description.
As shown in Figure 1, the utility model includes: the detection end host set on distribution transforming head end line side, it is set to branch point
Or electricity box side wireline inspection terminal slave, be connected with wireline inspection terminal slave for generating idle pulse or reactive current
The signal generating circuit of pulse；By being wirelessly connected between the detection end host and wireline inspection terminal slave, institute
It is connected by communication between the wireline inspection terminal slave stated and corresponding concentrator.The detection end host and slave have
GPS, Beidou positioning module.
The technical program can be investigated thoroughly each without having a power failure with drawing desk area electric topology logical relation
User under transformer realizes that family becomes relationship automatic identification, can really reflect basic data data under power distribution station, become realization
The basis of smart grid management.
To avoid that short-circuit risks occur, pulse train is generated by the way of switched capacitor in the technical scheme.Such as
Shown in Fig. 2, the signal generating circuit of wireline inspection terminal slave, including power relay J1, power relay J2, power relay
Device J3, with power relay J3 concatenated silicon-controlled T1 and power capacitor C1, the magnetic latching relay in parallel with silicon-controlled T1
J4, the power relay J1, power relay J2 series connection, power relay J3 are sequentially connected, the power relay
The contact of J1 includes the second contact, selects the first contact and third contact that one is electrically connected with the second contact；The power relay
The contact of device J2 includes the 5th contact, selects the 4th contact and the 6th contact that one is electrically connected with the second contact, the power after
The contact of electric appliance J3 includes the 7th contact and the 8th contact that can be electrically connected with the 7th contact；5th contact and the 7th touching
Point electrical connection, second contact are electrically connected with the 4th contact, first contact, third contact, the 6th contact and phase
Line connection；8th contact is electrically connected with silicon-controlled T1；Described one end power capacitor C1 is electrically connected with silicon-controlled T1,
The other end is electrically connected with the neutral conductor.The technical program generates pulse train by the way of switched capacitor, reliable operation, surely
It is fixed, short-circuit risks are not present；Avoid the short-circuit risks occurred using phase line and zero curve short circuit generation pulse train.Wireline inspection
Terminal slave, by specified regular quick-switching power capacitor, generates the idle pulse train of certain rule, by line according to instruction
Corresponding idle pulse train can be detected in road detection end host and each point wireline inspection terminal slave, utilizes pulse train phase
Knowledge and magnanimity receive detection signal to determine, pulse train similarity degree height indicates to be positively correlated, i.e., accurately detect signal, pulse train
The low expression of similarity degree does not detect corresponding signal.
It is wireless using LORA micropower since modular design radius of electricity supply in distribute-electricity transformer district is no more than 500 meters, it can search at least
Wireline inspection terminal slave devices in 1 kilometer are sequentially generated signal pulse to these slaves, to judge whether itself and host belong to
One area Ge Tai.Wireline inspection terminal slave obtains user's table information, realizes by communicating with electricity box concentrator or user's table
Family becomes relation recognition, after each wireline inspection terminal slave receives address lookup order, according to address difference, in certain time
It is interior, it staggers the time and reports respective address information；Wireline inspection terminal slave is by carrying out RS485 communication with the concentrator in electricity box.Inspection
Survey end host and slave generates and detection signal method: according to certain rule switched capacitor, the rule is settable, such as puts into
100ms cuts off 100ms, and persistently 1S time, wireline inspection end host wave recording when starting movement, record time are big altogether
In actuation time, such as 4S., circulation reads the one-off period (interception 1S data) evidence and is compared later.To ensure that platform area knows
Other accuracy rate, generates and identification reactive power variation calculates and carries out specially treated.Wireline inspection end host and wireline inspection
Whether terminal detects from the idle pulse of machine testing according to the wireline inspection terminal slave of wireline inspection end host and each branch point
To corresponding idle pulse train, to judge that wireline inspection terminal is closed from front and back logic between board area attaching relation and they
System identifies wireline inspection terminal slave all under platform area, in this way, being repeated several times, identifies that newly-increased wireline inspection terminal slave is set
It is standby；Generate platform area electric topology structure.
In order to facilitate the acquisition of signal, zero cross detection circuit can be added, first sampling point uses voltage zero-cross mode in the same direction:
The movement of wireline inspection terminal slave voltage over zero, wireline inspection end host voltage zero-cross point sampling.Advantage has voltage in this way
Zero crossing is more difficult to find than voltage peak point；Operating point is synchronous with sampled point so that sampling obtain will not have median without work value,
The case where avoiding sampling silicon-controlled mode and put into capacitor, causing first without work value to be median.
For wireline inspection end host according to wireline inspection terminal slave testing result, platform area automatically generates electric topology figure.
The figure eventually formed is similar to shown in following Fig. 3 and Fig. 4.In Fig. 3, A1-A6 is low pressure feeder pillar, and A5B1 is sub-branch below A5
Case, remaining is each meter cabinet, and in Fig. 4, small circular is that ammeter box tail end line detects terminal slave devices, expression at big circle
Branch point.
In low-voltage platform area when topological relation automatic identification, using current detection mode, pass through every wireline inspection terminal slave
The reactive current pulse train of generation detects corresponding pulse train according to the wireline inspection terminal slave of each branched line
Signal, the judgement for carrying out front and back logical relation determine topological network node context and concurrency relation by traversal search algorithm.
Wireline inspection terminal slave can be associated with user's table information to electricity box, can accurately realize entire platform area electric diagram.
Figure 1 above, a kind of low-voltage platform area electric topology device for identifying shown in 2,3,4 are the specific implementations of the utility model
Example, has embodied the utility model in essence feature and progress, needs can be used according to actual, in opening for the utility model
Under showing, the equivalent modifications of shape, structure etc., the column in the protection scope of this programme are carried out to it.
Claims (4)
1. a kind of low-voltage platform area electric topology device for identifying, characterized by comprising: the detection set on distribution low-voltage side outlet side
End host, what is be connected set on the wireline inspection terminal slave of branch point or electricity box side, with wireline inspection terminal slave is used to give birth to
At the signal generating circuit of idle pulse or reactive current pulse；The detection end host and wireline inspection terminal slave it
Between by being wirelessly connected, be connected by communication between the wireline inspection terminal slave and corresponding concentrator, the detection terminal
Host and slave have GPS, Beidou positioning module.
2. a kind of low-voltage platform area electric topology device for identifying according to claim 1, it is characterised in that: wireline inspection terminal
Realize that wireless network is connected by local radio communication between host and wireline inspection terminal slave, wireline inspection terminal slave is logical
RS485 communication interface is crossed to be connected by communication with the concentrator in electricity box.
3. a kind of low-voltage platform area electric topology device for identifying according to claim 2, it is characterised in that: the signal is raw
It include power relay J1, power relay J2, power relay J3 and the concatenated silicon-controlled T1 of power relay J3 at circuit
And power capacitor C1, the magnetic latching relay J4, the power relay J1, power relay in parallel with silicon-controlled T1
J2, power relay J3 are sequentially connected.
4. a kind of low-voltage platform area electric topology device for identifying according to claim 3, it is characterised in that: the power after
The contact of electric appliance J1 includes the second contact, selects the first contact and third contact that one is electrically connected with the second contact；The power
The contact of relay J2 includes the 5th contact, selects the 4th contact and the 6th contact that one is electrically connected, the function with the second contact
The contact of rate relay J3 includes the 7th contact and the 8th contact that can be electrically connected with the 7th contact；5th contact and the
The electrical connection of seven contacts, second contact are electrically connected with the 4th contact, first contact, third contact, the 6th contact
It is connect with phase line；8th contact is electrically connected with silicon-controlled T1；Described one end power capacitor C1 and silicon-controlled T1 electricity
Connection, the other end are electrically connected with the neutral conductor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820686951.2U CN209570659U (en) | 2018-05-09 | 2018-05-09 | A kind of low-voltage platform area electric topology device for identifying |
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| CN201820686951.2U CN209570659U (en) | 2018-05-09 | 2018-05-09 | A kind of low-voltage platform area electric topology device for identifying |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838758A (en) * | 2019-11-18 | 2020-02-25 | 烟台科大正信电气有限公司 | Transformer area low-voltage topological method based on signal injection mode |
| CN111614164A (en) * | 2020-06-02 | 2020-09-01 | 范伟 | Low-voltage distribution station topology identification method |
| CN112382076A (en) * | 2020-11-12 | 2021-02-19 | 贵州电网有限责任公司 | Equipment and operation method for acquiring topological information of district electric energy meter |
| CN112418622A (en) * | 2020-11-12 | 2021-02-26 | 贵州电网有限责任公司 | Method for relatively positioning equipment for unknown electric meters in transformer area |
| CN114243924A (en) * | 2021-12-21 | 2022-03-25 | 重庆物奇科技有限公司 | Transformer area topology identification method and system based on current signal detection |
-
2018
- 2018-05-09 CN CN201820686951.2U patent/CN209570659U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838758A (en) * | 2019-11-18 | 2020-02-25 | 烟台科大正信电气有限公司 | Transformer area low-voltage topological method based on signal injection mode |
| CN110838758B (en) * | 2019-11-18 | 2021-09-10 | 烟台科大正信电气有限公司 | Transformer area low-voltage topological method based on signal injection mode |
| CN111614164A (en) * | 2020-06-02 | 2020-09-01 | 范伟 | Low-voltage distribution station topology identification method |
| CN112382076A (en) * | 2020-11-12 | 2021-02-19 | 贵州电网有限责任公司 | Equipment and operation method for acquiring topological information of district electric energy meter |
| CN112418622A (en) * | 2020-11-12 | 2021-02-26 | 贵州电网有限责任公司 | Method for relatively positioning equipment for unknown electric meters in transformer area |
| CN112418622B (en) * | 2020-11-12 | 2022-12-09 | 贵州电网有限责任公司 | Method for relatively positioning equipment for unknown electric meters in transformer area |
| CN114243924A (en) * | 2021-12-21 | 2022-03-25 | 重庆物奇科技有限公司 | Transformer area topology identification method and system based on current signal detection |
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