CN110488129B - Transformer area branch identification method and system based on voltage and current detection - Google Patents
Transformer area branch identification method and system based on voltage and current detection Download PDFInfo
- Publication number
- CN110488129B CN110488129B CN201910893631.3A CN201910893631A CN110488129B CN 110488129 B CN110488129 B CN 110488129B CN 201910893631 A CN201910893631 A CN 201910893631A CN 110488129 B CN110488129 B CN 110488129B
- Authority
- CN
- China
- Prior art keywords
- node
- branch
- disturbance
- current signal
- central node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention relates to the technical field of power system detection, in particular to a voltage and current detection combined station zone branch identification method and a system, wherein the method comprises a disturbance loading step, a disturbance detection step and a topological structure calculation step, and specifically comprises the following steps: the central node controls a target branch node to send a disturbance current signal at the voltage zero-crossing moment, wherein the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 1-100 kHz; the branch node detects the disturbance current signal at the zero-crossing moment and sends a detection result to the central node; and the central node calculates the topological structure of the region to be detected according to the detection result. The method and the system for identifying the station zone branches in combination with the voltage and current detection do not influence power grid equipment, and can stably, accurately and quickly identify the station zone branches.
Description
Technical Field
The invention relates to the technical field of power system detection, in particular to a method and a system for identifying station zone branches in combination with voltage and current detection.
Background
Electric energy always occupies a great position in an energy pattern, and the intellectualization and informatization of a power grid system are crucial to further playing the role of the electric energy and effectively utilizing the electric energy. However, there are many problems to be solved in the process of intellectualization and informatization, wherein the topological structure of the power grid (especially the low-voltage platform area) is always a difficult problem which troubles the rapid development of the power grid. In order to use electricity quickly and conveniently, low-voltage distribution area users can wire the electricity quite randomly without wiring according to the regulations of relevant departments, and even some users have two service lines in different distribution areas, so that the actual electricity consumption of the users and the data of the branch summary table have large access. Secondly, due to the existence of various random connection and random connection, great potential safety hazards are brought to the personal safety of power maintenance personnel to a certain extent. Therefore, in order to realize consumption reduction and loss reduction by the power consumption management department, the whole topological structure of the transformer area needs to be accurately and dynamically known, so that the refined and accurate comprehensive management of the transformer area is realized.
To accurately map the topology of a low voltage cell, the first step is to determine whether a system node belongs to a target cell, and if so, which phase. Secondly, after determining all nodes of a certain target station area and corresponding phase power, further determining topological relations among all system nodes is needed. The traditional station zone branch identification system adopts a power line carrier bidirectional communication mode, and has the advantages that the existing network can be directly utilized without upgrading the system, and the operation is simple and convenient. Meanwhile, the power communication system is very complicated, the noise and the line impedance of the system are different in different periods, and the attenuation of the carrier signal is uneven, so that the long-distance transmission cannot be stably performed. Secondly, because the high-frequency carrier signals are mostly adopted in power line carrier communication, the high-frequency carrier signals are coupled to the high-voltage side through a distribution transformer and then transmitted to adjacent distribution transformers through high-voltage lines, the accuracy problem exists in the identification of the distribution transformer areas of a plurality of adjacent distribution transformers in a common-high-voltage, common-ground and common-cable trench. The other scheme is to adopt a specific large pulse current mode to identify the station zone branches, and certainly, the scheme does not have the problem of line stringing any more and can improve the accuracy problem of station zone identification to a certain extent. However, the greatest disadvantage is that the long-term short-term large current can cause damage to equipment and systems, thereby increasing the burden and cost of the systems invisibly and being irrevocable. In view of the above, how to consider the stability of the system equipment and the accuracy of the station zone branch identification is a difficult problem.
Disclosure of Invention
The invention aims to provide a station zone branch identification method and a station zone branch identification system combined with voltage and current detection, which can stably, accurately and quickly realize the identification of station zone branches.
In order to solve the technical problem, the present application provides the following technical solutions:
a method for identifying station zone branches in combination with voltage and current detection comprises the following steps: a disturbance loading step, wherein a central node controls a target branch node to send a disturbance current signal at the voltage zero crossing moment, wherein the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 1-100 kHz; a disturbance detection step, wherein the branch node detects a disturbance current signal at the zero-crossing moment and sends a detection result to the central node; and calculating the topological structure, namely calculating the topological structure of the to-be-detected distribution area by the central node according to the detection result.
In the technical scheme of the invention, the low-frequency sinusoidal disturbance current signal is used for replacing the original high-current pulse signal to identify the station zone branches, so that the influence on the power grid equipment can be avoided; the stability of the equipment operation is ensured. The mutual coupling between low-voltage transformer areas can be caused by the fact that the frequency of the disturbance current signal is too high, and the coupling effect can occur on the high-voltage side by too low frequency, so that the accuracy of the identification result can be reduced to a certain extent; the megahertz high-frequency signal is easily influenced by equivalent capacitance in a load circuit of an actual power grid, so that the actual situation deviates from the expectation to a great extent; the frequency of 1-100kHz is adopted as a disturbing current signal, the sine wave wavelength of the disturbing current signal of 1-100kHz is 3-300km in vacuum theoretical length and is enough to cover low-voltage transformer areas of almost all scales, noise influence can be reduced, signal transmission quality is guaranteed, the disturbing current signal can be effectively covered on the whole transformer area, and detection accuracy is guaranteed.
Further, the perturbation loading step comprises:
s100: the central node selects one node in the target branch nodes as a current target branch node;
s200: the central node informs the current target branch node of sending a disturbance current signal;
s300: after the current target branch node receives the communication information, a disturbance current signal is sent at the voltage zero crossing moment within a preset time interval;
the disturbance detection step comprises:
s400: all branch nodes carry out disturbance current signal detection at the voltage zero crossing moment, and send detection results to the central node when the disturbance current signals are detected;
s500: if the central node receives the detection result corresponding to the current target branch node, other branch nodes which are not notified are selected as the current target branch node, and S200 to S500 are repeatedly executed until the detection results corresponding to all the target branch nodes are received.
The central node actively controls each target branch node to send the disturbance current signals one by one, and detection of the branch nodes can be completed orderly and efficiently.
Further, the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 10 kHz.
A sine wave wavelength λ of 10kHz is 30km in the theoretical length of vacuum, sufficient to cover the entire low-pressure land.
Further, in S400, the branch node sends the detection result to the central node through power line carrier communication.
The power line carrier communication is a mature communication technology at present, and data transmission between the branch node and the central node is carried out by means of the power line carrier communication, so that the method is simple and convenient.
Further, in S500, if the central node does not receive the detection result corresponding to the current target branch node, the central node keeps the current target branch node, and repeatedly executes S200 to S500 until the detection result corresponding to the current branch node is received or the maximum retry number is reached, selects another branch node that is not notified as the current target branch node, and repeatedly executes S200 to S500 until the detection results corresponding to all the target branch nodes are received.
The failure of information sending caused by the instability of communication is avoided, and the central node can send messages for a plurality of times for the branch nodes which are not successfully fed back through retry, so that the corresponding detection results are ensured to be acquired.
Further, S100 is preceded by:
s10: and the central node identifies the transformer area and the phase line, and screens the branch nodes of the target transformer area as target branch nodes.
Through the identification of the distribution area and the phase line, corresponding target branch nodes can be screened out, and detection is only carried out on the distribution area to be detected.
Further, in the step of calculating the topology structure, the step of judging the topology structure of the branch node by the central node includes the following steps:
and the central node judges whether the disturbance current signal detected by the branch node is in phase with the current target branch node or not according to the detection result sent by the branch node, and if so, the branch node is judged to be the father node of the current target branch node.
And judging the loop relation among the branch nodes according to the phase of the low-frequency current disturbance current signal, and calculating the topological structure relation of the whole to-be-detected distribution room through the relation among all the nodes.
Furthermore, the invention also discloses a station zone branch identification system combining voltage and current detection, which comprises:
the system comprises a central node and branch nodes, wherein a disturbance current signal generation and detection module is installed on each branch node and comprises a disturbance current signal transmitting unit, a voltage zero-crossing time monitoring unit and a disturbance current detection unit;
the central node is used for informing the target branch nodes to sequentially send disturbance current signals; the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 1-100 kHz;
the voltage zero-crossing time monitoring unit is used for monitoring the voltage zero-crossing time;
the disturbance current signal transmitting unit is used for transmitting a disturbance current signal at the voltage zero crossing moment within a preset time interval after receiving the notification information of the central node;
the disturbance current detection unit is used for detecting a disturbance current signal at the voltage zero crossing moment and sending a detection result to the central node;
the central node is also used for receiving the detection results sent by the branch nodes and calculating the topological structure of the to-be-detected distribution room according to the detection results.
By using the disturbing current signal generating and detecting module, the low-frequency sinusoidal disturbing current signal is used for replacing the original high-current pulse signal to identify the station zone branches, so that the influence on the power grid equipment can be avoided; the stability of the equipment operation is ensured. The mutual coupling between low-voltage transformer areas can be caused by the fact that the frequency of the disturbance current signal is too high, and the coupling effect can occur on the high-voltage side by too low frequency, so that the accuracy of the identification result can be reduced to a certain extent; the megahertz high-frequency signal is easily influenced by equivalent capacitance in a load circuit of an actual power grid, so that the actual situation deviates from the expectation to a great extent; the frequency of 1-100kHz is adopted as a disturbing current signal, the sine wave wavelength of the disturbing current signal of 1-100kHz is 3-300km in vacuum theoretical length and is enough to cover low-voltage transformer areas of almost all scales, noise influence can be reduced, signal transmission quality is guaranteed, the disturbing current signal can be effectively covered on the whole transformer area, and detection accuracy is guaranteed.
Further, the disturbing current signal generating and detecting module further comprises a distribution area feedback unit and a phase line feedback unit, the central node comprises a distribution area identification unit and a phase line identification unit, the distribution area feedback unit and the phase line feedback unit are used for sending distribution area information and phase line information of a branch node where the central node is located to the central node, the distribution area identification unit and the phase line identification unit are used for identifying the distribution area and the phase line according to the distribution area information and the phase line information, and the central node is further used for screening the branch node of the target distribution area as a target branch node according to the distribution area and the phase line.
By acquiring the station area information and the phase line information, the center node can conveniently screen the target branch node.
Further, the disturbing current signal generating and detecting module comprises a carrier communication unit, and the branch node receives the notification information of the central node and sends the station area information, the phase line information and the detection result to the central node through the carrier communication unit.
The carrier communication unit can be used for carrying out data transmission between the branch node and the central node through power line carrier communication, and the method is simple and convenient.
Drawings
Fig. 1 is a logic block diagram of an embodiment of a station branch identification method combined with voltage and current detection according to the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
example one
As shown in fig. 1, the station zone branch identification system combining voltage and current detection in this embodiment includes a central node and a branch node, where the branch node is installed with a disturbing current signal generating and detecting module, where the disturbing current signal generating and detecting module includes a carrier communication unit, a station zone feedback unit, a phase line feedback unit, a disturbing current signal transmitting unit, a voltage zero-crossing time monitoring unit, and a disturbing current detecting unit; the disturbance current signal transmitting unit is used for transmitting a disturbance current signal at the voltage zero crossing moment within a preset time interval after receiving the notification information of the central node; the disturbance current detection unit is used for detecting a disturbance current signal at the voltage zero crossing moment and sending a detection result to the central node. The central node is used for informing the target branch nodes to sequentially send disturbance current signals; the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 1-100 kHz; the central node is also used for receiving the detection results sent by the branch nodes and calculating the topological structure of the to-be-detected distribution room according to the detection results. The communication between the branch nodes and the central node comprises the steps of receiving the notification information of the central node, and sending the station area information, the phase line information and the detection result to the central node, and is realized through a carrier communication unit.
The central node comprises a station area identification unit and a phase line identification unit, the station area feedback unit and the phase line feedback unit are used for sending station area information and phase line information of a branch node where the central node is located to the central node, the station area identification unit and the phase line identification unit are used for identifying the station area and the phase line according to the station area information and the phase line information, and the central node is further used for screening the branch node of a target station area as a target branch node according to the station area and the phase line.
In this embodiment, the disturbing current signal generating and detecting module adopts a special chip module supporting carrier communication, specifically, a WQ3011 power line carrier communication chip, and the chip module supports the station area identification and phase line identification functions, and is used to send station area information and phase line information to the central node, so that the central node can quickly determine all branch nodes of a certain low-voltage station area, and can generate a low-frequency sinusoidal current disturbing current signal of 1-100kHz under the signal control of the central node; the chip module comprises a voltage zero-crossing time monitoring circuit and a disturbance current detection circuit, wherein the voltage zero-crossing time monitoring circuit can accurately position the zero-crossing position of voltage, the error of the voltage zero-crossing time monitoring circuit is in the microsecond order of magnitude, and the disturbance current detection circuit detects a low-frequency current disturbance current signal.
Specifically, in this embodiment, the disturbance current signal is set to a low-frequency sinusoidal disturbance current signal of 10 kHz. A sine wave wavelength λ of 10kHz is 30km in the theoretical length of vacuum, and the equivalent wavelength is about 10km considering the complex path and round trip of the actual power line, and even a quarter wavelength, i.e. 2.5km is sufficient to cover the whole low-voltage stage area.
The station zone branch identification method combining voltage and current detection in the embodiment is based on the system, and the method comprises the following steps:
a disturbance loading step, wherein a central node controls a target branch node to send a disturbance current signal at the voltage zero crossing moment, and the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 1-100 kHz; in this example a low frequency sinusoidal perturbation current signal of 10 kHz.
A disturbance detection step, wherein the branch node detects a disturbance current signal at the zero-crossing moment and sends a detection result to the central node;
and calculating the topological structure, namely calculating the topological structure of the to-be-detected distribution area by the central node according to the detection result.
Specifically, the step of disturbance loading includes:
s10: and the central node identifies the transformer area and the phase line, and screens the branch nodes of the target transformer area as target branch nodes.
S100: the central node selects one node in the target branch nodes as a current target branch node;
s200: the central node informs the current target branch node to send a disturbance current signal through power line carrier communication; in this embodiment, the central node notifies the branch nodes in a broadcast manner, each branch node has a node number, the central node broadcasts the node number of the current target branch node each time, and the branch node determines whether the branch node is the current node or not by the node number.
S300: after the current target branch node receives the communication information, a disturbance current signal is sent at the voltage zero crossing moment within a preset time interval;
the disturbance detection step comprises:
s400: all branch nodes carry out disturbance current signal detection at the voltage zero crossing moment, and when the disturbance current signal is detected, a detection result is sent to the central node through power line carrier communication; the detection result includes phase information.
S500: if the central node receives the detection result corresponding to the current target branch node, other branch nodes which are not notified are selected as the current target branch node, and S200 to S500 are repeatedly executed until the detection results corresponding to all the target branch nodes are received. If the central node does not receive the detection result corresponding to the current target branch node, the central node keeps the current target branch node, repeatedly executes S200 to S500 until the detection result corresponding to the current branch node is received or the maximum retry number is reached, selects other branch nodes which are not notified as the current target branch node, and repeatedly executes S200 to S500 until the detection results corresponding to all the target branch nodes are received.
In the step of calculating the topological structure, when the central node judges the topological structure of the branch node, the judgment is carried out according to the following principle:
if a branch node is the parent node of the current target branch node, then the disturbance current signal it detects is in phase with the current target branch node, and if a branch node is a child or sibling of the current target branch node, then the disturbance current signal it detects is in anti-phase with the current target branch node.
Correspondingly, the step of judging the topology structure of the branch node by the central node specifically comprises the following steps:
the central node judges whether a disturbance current signal detected by the branch node is in phase with a current target branch node or not according to a detection result sent by the branch node, and if so, the branch node is judged to be a father node of the current target branch node;
and the central node perfects the previously calculated topological structure according to the detection result.
And judging the loop relation among the branch nodes according to the phase of the low-frequency current disturbance current signal, and calculating the topological structure relation of the whole to-be-detected distribution room through the relation among all the nodes.
Example two
The difference between the present embodiment and the first embodiment is that the low-frequency current disturbance current signal in the present embodiment is a sinusoidal current signal of 9 kHz.
EXAMPLE III
The difference between this embodiment and the first embodiment is that in this embodiment, a sinusoidal current signal of 11kHz is used as the low-frequency current disturbance current signal.
Example four
The difference between the present embodiment and the first embodiment is that the low-frequency disturbance current signal in the present embodiment is a sinusoidal current signal of 1 kHz.
EXAMPLE five
The difference between this embodiment and the first embodiment is that in this embodiment, a sinusoidal current signal of 100kHz is used as the low-frequency disturbance current signal.
The above are merely examples of the present invention, and the present invention is not limited to the field related to this embodiment, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art can know all the common technical knowledge in the technical field before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the scheme, and some typical known structures or known methods should not become barriers to the implementation of the present invention by those skilled in the art in light of the teaching provided in the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. A method for identifying station zone branches in combination with voltage and current detection is characterized in that: the method comprises the following steps:
a disturbance loading step, wherein a central node controls a target branch node to send a disturbance current signal at the voltage zero crossing moment, wherein the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 1-100 kHz;
a disturbance detection step, wherein the branch node detects a disturbance current signal at the zero-crossing moment and sends a detection result to the central node;
calculating a topological structure, namely calculating the topological structure of the to-be-detected distribution area by the central node according to the detection result;
the disturbance loading step comprises:
s100: the central node selects one node in the target branch nodes as a current target branch node;
s200: the central node informs the current target branch node of sending a disturbance current signal;
s300: after the current target branch node receives the communication information, a disturbance current signal is sent at the voltage zero crossing moment within a preset time interval;
the disturbance detection step comprises:
s400: all branch nodes carry out disturbance current signal detection at the voltage zero crossing moment, and send detection results to the central node when the disturbance current signals are detected;
s500: if the central node receives the detection result corresponding to the current target branch node, selecting other branch nodes which are not notified as the current target branch node, and repeatedly executing S200 to S500 until the detection results corresponding to all the target branch nodes are received;
in the step S400, the branch nodes send detection results to the central node through power line carrier communication;
before S100, further comprising:
s10: and the central node identifies the transformer area and the phase line, and screens the branch nodes of the target transformer area as target branch nodes.
2. The station area branch identification method based on voltage and current detection as claimed in claim 1, wherein: the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 10 kHz.
3. The station area branch identification method based on voltage and current detection as claimed in claim 1, wherein: in S500, if the central node does not receive the detection result corresponding to the current target branch node, the central node keeps the current target branch node, and repeatedly executes S200 to S500 until the detection result corresponding to the current branch node is received or the maximum retry number is reached, selects another branch node that is not notified as the current target branch node, and repeatedly executes S200 to S500 until the detection results corresponding to all the target branch nodes are received.
4. The station area branch identification method based on voltage and current detection as claimed in claim 1, wherein: in the step of calculating the topological structure, the step of judging the topological structure of the branch node by the central node comprises the following steps:
and the central node judges whether the disturbance current signal detected by the branch node is in phase with the current target branch node or not according to the detection result sent by the branch node, and if so, the branch node is judged to be the father node of the current target branch node.
5. The utility model provides a platform district branch identification system of joint voltage current detection which characterized in that: the system comprises:
the system comprises a central node and branch nodes, wherein a disturbance current signal generation and detection module is installed on each branch node and comprises a disturbance current signal transmitting unit, a voltage zero-crossing time monitoring unit and a disturbance current detection unit;
the central node is used for informing the target branch nodes to sequentially send disturbance current signals; the disturbance current signal is a low-frequency sinusoidal disturbance current signal of 1-100 kHz;
the voltage zero-crossing time monitoring unit is used for monitoring the voltage zero-crossing time;
the disturbance current signal transmitting unit is used for transmitting a disturbance current signal at the voltage zero crossing moment within a preset time interval after receiving the notification information of the central node;
the disturbance current detection unit is used for detecting a disturbance current signal at the voltage zero crossing moment and sending a detection result to the central node;
the central node is also used for receiving the detection results sent by the branch nodes and calculating the topological structure of the to-be-detected distribution room according to the detection results;
the disturbing current signal generating and detecting module further comprises a distribution area feedback unit and a phase line feedback unit, the central node comprises a distribution area identification unit and a phase line identification unit, the distribution area feedback unit and the phase line feedback unit are used for sending distribution area information and phase line information of a branch node where the central node is located to the central node, the distribution area identification unit and the phase line identification unit are used for identifying the distribution area and the phase line according to the distribution area information and the phase line information, and the central node is further used for screening the branch node of a target distribution area as a target branch node according to the distribution area and the phase line.
6. The station area branch identification system combining voltage and current detection as claimed in claim 5, wherein: the disturbing current signal generating and detecting module comprises a carrier communication unit, and the branch node receives the notification information of the central node and sends the zone information, the phase line information and the detection result to the central node through the carrier communication unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893631.3A CN110488129B (en) | 2019-09-20 | 2019-09-20 | Transformer area branch identification method and system based on voltage and current detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893631.3A CN110488129B (en) | 2019-09-20 | 2019-09-20 | Transformer area branch identification method and system based on voltage and current detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110488129A CN110488129A (en) | 2019-11-22 |
| CN110488129B true CN110488129B (en) | 2021-12-07 |
Family
ID=68558830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910893631.3A Active CN110488129B (en) | 2019-09-20 | 2019-09-20 | Transformer area branch identification method and system based on voltage and current detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110488129B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030097B (en) * | 2019-12-11 | 2021-09-14 | 江苏方天电力技术有限公司 | Low-voltage distribution network platform area topology identification method and system |
| CN111030303A (en) * | 2019-12-27 | 2020-04-17 | 无锡圣普电力科技有限公司 | Low-voltage transformer area topology identification system based on characteristic current |
| CN111245095A (en) * | 2020-01-16 | 2020-06-05 | 遵义贵华能源科技有限公司 | Topology identification method of low-voltage distribution network topology identification system |
| CN111682641A (en) * | 2020-06-02 | 2020-09-18 | 航天中电科技（北京）有限公司 | Charge control intelligent switch, charge control method and distribution room topology identification method |
| CN112054598A (en) * | 2020-09-10 | 2020-12-08 | 烟台科大正信电气有限公司 | Power grid low-voltage distribution area topology identification system |
| CN113030642B (en) * | 2021-03-03 | 2021-11-16 | 北京天能继保电力科技有限公司 | Automatic field test method and system for feeder automation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251951A (en) * | 2008-04-03 | 2008-08-27 | 中国电力科学研究院 | Power distribution network industrial frequency communicating method and system |
| CN206146990U (en) * | 2016-10-10 | 2017-05-03 | 保定朗信电子科技有限公司 | Platform district tester |
| CN108037360A (en) * | 2017-11-10 | 2018-05-15 | 深圳供电局有限公司 | A kind of taiwan area identification device of safety and stability strong antijamming capability |
| CN109066990A (en) * | 2018-09-07 | 2018-12-21 | 光科技股份有限公司 | Platform area power grid tip turbulence Topology identification method based on centralized dispatching |
| CN109525285A (en) * | 2018-11-13 | 2019-03-26 | 国网江苏省电力有限公司电力科学研究院 | A kind of Power Line Carrier Communication Module with power network topology perceptional function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106124908A (en) * | 2016-08-30 | 2016-11-16 | 浙江图维科技股份有限公司 | A kind of Intelligent platform zone identifies device and method |
| CN107147428B (en) * | 2017-05-23 | 2020-09-22 | 重庆物奇科技有限公司 | PLC network platform area identification method and carrier communication module |
| CN107039976B (en) * | 2017-06-08 | 2019-07-26 | 山东鲁能智能技术有限公司 | It is a kind of to lead the power distribution network intelligence anti-islanding system passively combined and configuration operation method |
| CN209327468U (en) * | 2018-12-11 | 2019-08-30 | 国网重庆市电力公司客户服务中心 | A kind of platform area identification device based on low pressure wideband electronic carrier wave |
| CN109728838A (en) * | 2018-12-14 | 2019-05-07 | 珠海慧信微电子有限公司 | Platform area identifying system and recognition methods based on broadband power line carrier and power frequency communication |
-
2019
- 2019-09-20 CN CN201910893631.3A patent/CN110488129B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251951A (en) * | 2008-04-03 | 2008-08-27 | 中国电力科学研究院 | Power distribution network industrial frequency communicating method and system |
| CN206146990U (en) * | 2016-10-10 | 2017-05-03 | 保定朗信电子科技有限公司 | Platform district tester |
| CN108037360A (en) * | 2017-11-10 | 2018-05-15 | 深圳供电局有限公司 | A kind of taiwan area identification device of safety and stability strong antijamming capability |
| CN109066990A (en) * | 2018-09-07 | 2018-12-21 | 光科技股份有限公司 | Platform area power grid tip turbulence Topology identification method based on centralized dispatching |
| CN109525285A (en) * | 2018-11-13 | 2019-03-26 | 国网江苏省电力有限公司电力科学研究院 | A kind of Power Line Carrier Communication Module with power network topology perceptional function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110488129A (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110488129B (en) | Transformer area branch identification method and system based on voltage and current detection | |
| CN110601363A (en) | Station area branch identification method and system based on sinusoidal current disturbance | |
| AU2017279752B2 (en) | Methods for discovering, partitioning, organizing, and administering communication devices in a transformer area network | |
| CN106026408B (en) | Low-voltage platform area physical topology generates online and method of real-time and system | |
| US10564196B2 (en) | System and method for detecting and localizing non-technical losses in an electrical power distribution grid | |
| CN109687891B (en) | Carrier region identification method based on broadband power line | |
| CN105788206A (en) | Electricity information acquisition system based on dual-mode communication and method thereof | |
| CN109378898B (en) | Intelligent regulation and control system and method for distribution transformer area | |
| US20130024149A1 (en) | Identification of electrical grid phase information for end-points in a grid network | |
| AU2014277951B2 (en) | Inferring feeder and phase powering a transmitter | |
| CN109494715B (en) | Dynamic identification system and method for low-voltage distribution station area electric network topology | |
| CN104011957A (en) | Methods and apparatus for determining power distribution system topology using disturbance detection | |
| CN210954207U (en) | Platform district branch recognition device | |
| CN205901443U (en) | Low -voltage transformer area physical topology is online to be generated and real -time monitoring system | |
| CN111740404A (en) | Medium-low voltage distribution network integrated topology identification method, related master station and secondary terminal | |
| Della Giustina et al. | ICT architecture for an integrated distribution network monitoring | |
| CN114243924B (en) | Transformer area topology identification method and system based on current signal detection | |
| CN114167344A (en) | Medium-high voltage and distribution room general table metering point error analysis system | |
| CN113189472A (en) | Low-voltage network circuit topology structure detection method and system | |
| CN111948486A (en) | Automatic identification device and method for distribution room topology of low-voltage power line carrier transmission | |
| CN113687157A (en) | HPLC small current branch identification method | |
| CN109151945B (en) | Power failure warning method and system based on radio frequency network | |
| CN113676788B (en) | End side equipment of electric power mining system and electric power mining system adopting same | |
| CN111371475B (en) | TPLC-based power distribution station area file management method and system | |
| CN111146867B (en) | Low-voltage transformer area topology identification system based on integral current method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230330 Address after: 401120 14th Floor, 107 Daguzhong Road, Xiantao Street, Yubei District, Chongqing Patentee after: WU QI TECHNOLOGIES, Inc. Address before: 400000 14 / F, 107 dataguzhong Road, Xiantao street, Yubei District, Chongqing Patentee before: WU QI TECHNOLOGIES, Inc. Patentee before: SHANGHAI WU QI TECHNOLOGIES, Inc. |
|
| TR01 | Transfer of patent right |