CN112834862A - Testing method and tester for distributed power distribution network - Google Patents
Testing method and tester for distributed power distribution network Download PDFInfo
- Publication number
- CN112834862A CN112834862A CN201911167677.3A CN201911167677A CN112834862A CN 112834862 A CN112834862 A CN 112834862A CN 201911167677 A CN201911167677 A CN 201911167677A CN 112834862 A CN112834862 A CN 112834862A
- Authority
- CN
- China
- Prior art keywords
- distribution network
- power distribution
- circuit breaker
- position information
- network 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.)
- Pending
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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a test method of a distributed power distribution network, wherein the power distribution network comprises a plurality of power distribution network nodes and a tester corresponding to each power distribution network, the tester is connected with a corresponding power distribution network terminal, and the method comprises the following steps: collecting circuit breaker position information of a current power distribution network node in the plurality of power distribution network nodes; receiving circuit breaker position information and power distribution network architecture information of other power distribution network nodes different from the current power distribution network node in the plurality of power distribution network nodes; and calculating and outputting the analog quantity of the current power distribution network node based on the circuit breaker position information of the current power distribution network node, the circuit breaker position information of other power distribution network nodes and the power distribution network architecture information. The invention also relates to a tester for the distributed power distribution network. According to the power distribution network terminal testing method, the complexity of the testing process is reduced, the overall efficiency of system testing is improved, and the requirement of power distribution network system testing is met.
Description
Technical Field
The invention belongs to the field of power systems, and particularly relates to a testing method and a testing instrument for a distributed power distribution network.
Background
At present, for a power distribution network of a power system, factors such as importance of load, investment scale and the like are considered, and various wiring modes such as a radiation type, a single-ring network type, a double-ring network type, an N-supply-one-standby type, a petal type and the like exist.
The radiation type wiring is simple, the investment is low, the equipment utilization rate is high, but only one power supply point is provided, and after a fault occurs, the fault point and the load are simultaneously removed, so that the power supply reliability is low. The single-ring network type, the double-ring network type, the N supply one standby type and the petal type are characterized in that the equipment utilization rate is reduced, the investment is increased and the like, when a distribution line breaks down or is overhauled, the load can be connected to the power supply again through the change of the operation mode, and the power supply reliability is improved.
The operation mode after the traditional power distribution network fault is removed is switched, operation or dispatching personnel are required to judge the fault position, and the switches of different power distribution network nodes are changed one by one in a manual operation or remote control mode, so that the node loads are reconnected to a power supply.
Along with the implementation of the intelligent power distribution network, terminals are installed and deployed at nodes such as a switching station/a switching station, a distribution room and a ring main unit of the power distribution network, and functions of fault isolation, fault disconnection, low-frequency low-voltage load shedding, automatic switching of a standby power supply, self-healing of the power distribution network and the like are achieved through data interaction among the devices. After the fault occurs, the fault point can be cut off without manual intervention, and the loads of different nodes are supplied with power step by step.
The test current situation of the intelligent power distribution network: firstly, designing and calculating a test case, and confirming the voltage and current conditions of each node in different stages of normal power flow distribution, a fault state, a fault removal state and power supply recovery. Secondly, deploying traditional power distribution network terminal testers at different nodes of the power distribution network, and configuring the output of voltage and current at different stages. Then, the testers of each node communicate with each other, and the tester is operated to output voltages and currents of different stages according to configuration according to the sequence of the test cases. There are several problems with the current test approach: each power distribution network node needs a tester, and the labor investment is high; the reliability of time synchronization is low depending on the alternating current switching state of a tester, and the test failure is easily caused; the test process can only be carried out according to a design plan, and the test case is inconvenient to adjust.
Disclosure of Invention
Therefore, a scheme needs to be provided for solving the problems of high labor input, low reliability and insufficient flexibility of the power distribution network test in the prior art.
According to a first aspect of the present invention, there is provided a method for testing a distributed power distribution network, where the power distribution network includes a plurality of nodes of the power distribution network and a tester corresponding to each node, and the tester is connected to a corresponding terminal of the power distribution network, the method including:
collecting circuit breaker position information of a current power distribution network node in the plurality of power distribution network nodes;
receiving circuit breaker position information and power distribution network architecture information of other power distribution network nodes different from the current power distribution network node in the plurality of power distribution network nodes; and
and calculating and outputting the analog quantity of the current power distribution network node based on the circuit breaker position information of the current power distribution network node, the circuit breaker position information of other power distribution network nodes and the power distribution network architecture information.
According to a second aspect of the present invention, there is provided a tester for a distributed power distribution network, the power distribution network including a plurality of nodes and a tester corresponding to each of the nodes, the tester being connected to a corresponding terminal of the power distribution network, the tester including:
the switching value interface is used for acquiring the position information of the circuit breaker of the corresponding power distribution network node;
the communication interface is used for sending the breaker position information of the corresponding power distribution network node and receiving the breaker position information of other power distribution network nodes and the network architecture information of the power distribution network;
the calculation module is used for calculating the analog quantity of the corresponding power distribution network node based on the circuit breaker position information of the corresponding power distribution network node, the circuit breaker position information of the other power distribution network nodes and the power distribution network architecture information; and
and the analog quantity interface is used for outputting the analog quantity to the corresponding power distribution network terminal.
According to the testing method and the tester for the distributed power distribution network, which are disclosed by the invention, a distributed testing scheme with mutual communication connection is adopted, so that the testing method and the tester can be used for system testing of the power distribution network, particularly in testing of a self-healing function of the power distribution network, the requirement of a testing process on personnel is reduced, the condition that the manual matching time sequence of a plurality of people is inconsistent is avoided, the complexity of the testing process is reduced, a testing conclusion can be automatically analyzed and judged, the overall efficiency of system testing is improved, the scheduled inspection time is reduced, and the requirement of system testing of the power distribution network is met.
Drawings
For further clarity of explanation of the features and technical content of the present invention, reference should be made to the following detailed description of the present invention and accompanying drawings, which are provided for reference and description purposes only and are not intended to limit the present invention.
In the following drawings:
fig. 1 is a typical connection diagram of a distributed power distribution network terminal according to an embodiment of the present invention;
fig. 2 is a typical connection diagram of a distributed power distribution network terminal according to another embodiment of the present invention;
FIG. 3 is a diagram illustrating the definition of nodes of a power distribution network according to the present invention;
fig. 4 is a schematic flowchart of a testing method for a distributed power distribution network according to an embodiment of the present invention;
FIG. 5 is a connection diagram of a first tester, distribution network terminal and circuit breaker provided by the present invention;
FIG. 6 is a connection diagram of a second tester, distribution network terminal and circuit breaker provided by the present invention;
FIG. 7 is a connection diagram of a third tester, distribution network terminal and circuit breaker provided by the present invention;
FIG. 8 is a schematic diagram of the present invention illustrating the collection of breaker positions;
FIG. 9 is a schematic illustration of the voltage and current distribution of the present invention for a typical distribution network;
FIG. 10 is a schematic illustration of the voltage and current distribution of the present invention for a typical power distribution network fault condition;
FIG. 11 is a schematic illustration of the voltage and current distribution of the present invention in a fault isolation condition for a typical power distribution network;
fig. 12 is a schematic diagram of the voltage and current distribution during the self-healing process of a typical distribution network according to the present invention.
Detailed Description
The embodiments of the present invention disclosed are described below with reference to specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification and various other changes, which can be made in various details within the specification and without departing from the spirit and scope of the invention. The drawings of the present invention are for illustrative purposes only and are not drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
In the embodiment of the invention, a distributed test scheme with mutual communication connection is adopted, the distributed test scheme can be used for system test of the power distribution network, particularly in the test of the self-healing function of the power distribution network, the requirement of a test process on personnel is reduced, the condition that the manual matching time sequences of multiple persons are inconsistent is avoided, the complexity of the test process is reduced, a test conclusion can be automatically analyzed and judged, the overall efficiency of the system test is improved, the scheduled maintenance time is reduced, and the requirement of the system test of the power distribution network is met.
In the invention, the power distribution network comprises a plurality of power distribution network nodes and corresponding testers, and the testers are connected with corresponding power distribution network terminals. Different distribution network testers are in communication connection with upper computer matching software. Each tester has an independent identification for identifying each other. In a specific embodiment, the distribution network node is an equipment set composed of a plurality of primary equipment, and includes a switching station, a distribution room, a ring main unit and the like, the distribution network terminal is equipment for monitoring and controlling the distribution network node, and the tester is used for testing the functions of the distribution network.
Fig. 1 is a typical connection diagram of a distributed distribution network terminal according to an embodiment of the present invention, and as shown in fig. 1, distribution network terminals B1, B2, B3, B4, and B5 are used as devices under test and connected to distribution network testers a1, a2, A3, a4, and a 5. Each distribution network tester has analog quantity (voltage and current) output and switching value (namely distribution network breaker position information) acquisition capacity. Each distribution network tester A1, A2, A3, A4 and A5 has a communication capability, the connection mode of the tester can be a cascade mode, upper computer matching software is communicated with A1, A1 is communicated with A2 independently, A2 is communicated with A1 and A3 independently, A3 is communicated with A2 and A4 independently, A4 is communicated with A3 and A5 independently, A5 is communicated with A4 independently, and the communication between A1 and A5 needs to be forwarded through intermediate A2, A3 and A4.
Fig. 2 is a typical connection diagram of a distributed power distribution network terminal according to another embodiment of the present invention. As shown in fig. 2, distribution network terminals B1, B2, B3, B4, and B5 are connected to distribution network testers a1, a2, A3, a4, and a5 as devices under test. Each distribution network tester has analog quantity (voltage and current) output and switching value (namely distribution network breaker position) acquisition capacity. Compared with the system in fig. 1, each distribution network tester a1, a2, A3, a4, a5 in fig. 2 and the host computer supporting software have communication capability, and exchange data with each other through connection with the communication equipment in the figure.
Fig. 3 is a definition diagram of a power distribution network node provided by the present invention. As shown in fig. 3, in each distribution network node, there are a bus and branches connected to other distribution network nodes, and the circuit breaker of the left branch is defined as circuit breaker a, and the circuit breaker of the right branch is defined as circuit breaker B. A plurality of power supplies and loads are connected to the bus, and each branch has a corresponding branch current.
Based on the structure of the power distribution network, according to one aspect, the invention provides a test method of a distributed power distribution network. Fig. 4 is a schematic flowchart of a testing method for a distributed power distribution network according to an embodiment of the present invention. As shown in fig. 4, the method includes the following steps.
Step S401, collecting the circuit breaker position information of the current power distribution network node in a plurality of power distribution network nodes.
According to different scenes, the tester can obtain the circuit breaker position information of the current power distribution network node in multiple modes. The collected circuit breaker position information can be hard contacts of a conventional circuit breaker position, and can also be digital circuit breaker position information.
Fig. 5 is a connection diagram of a first tester, a distribution network terminal and a circuit breaker provided by the invention. As shown in fig. 5, the distribution network terminal collects the positions of the circuit breakers a and B of the distribution network (e.g., through a secondary circuit in the figure), the tester indirectly obtains the positions of the circuit breakers a and B of the current distribution network node through the distribution network terminal, and the tester outputs analog quantities including bus voltage, branch current and the like to the distribution network terminal.
Fig. 6 is a connection diagram of a second tester, a distribution network terminal and a circuit breaker provided by the invention. As shown in fig. 6, the distribution network terminal collects the positions of the circuit breakers a and B of the distribution network (e.g., through a secondary circuit in the figure), the tester directly collects the current position of the circuit breaker of the distribution network node, and the tester outputs analog quantities including bus voltage, branch current and the like to the distribution network terminal.
Fig. 7 is a connection diagram of a third tester, a distribution network terminal and a circuit breaker provided by the present invention. As shown in fig. 7, the tester has a circuit breaker simulation function, the power distribution network terminal collects the position of the circuit breaker of the tester, the tester directly collects the position of the circuit breaker of the tester, and the tester outputs analog quantity including bus voltage, branch current and the like to the power distribution network terminal.
After the circuit breaker position information of the current power distribution network node is collected, the collected circuit breaker position information of the current power distribution network node is sent to other testers by the testers. According to the connection mode and the communication mode of the testers shown in fig. 1, each tester respectively sends the acquired circuit breaker position information of the current distribution network node to an adjacent tester, for example, the circuit breaker position information of the current distribution network node acquired by tester a2 is sent to testers a1 and A3, then tester A3 sends the circuit breaker position information to tester a4, and tester a4 sends the circuit breaker position information to tester a 5. According to the connection mode and the communication mode of the tester shown in fig. 2, each tester respectively sends the collected circuit breaker position information of the current distribution network node to other testers through communication equipment.
Step S402, receiving circuit breaker position information and power distribution network architecture information of other power distribution network nodes different from the current power distribution network node in the plurality of power distribution network nodes.
The tester collects the position of the circuit breaker of the current node, sends the position information of the circuit breaker of the current node to other testers, and receives the positions of the circuit breakers of other testers.
Fig. 8 is a schematic diagram illustrating the acquisition of breaker position according to the present invention. As shown in fig. 8, the distribution network comprises 5 nodes, with the circuit breakers between node 3 and node 4 open (indicated by the open small boxes in the figure) and the other circuit breakers closed (indicated by the solid small boxes in the middle). The tester collects the circuit breaker position information of each node and interacts the circuit breaker position information. Through the above-mentioned circuit breaker position information acquisition and interaction step, each tester knows the circuit breaker position information of whole distribution network.
And the upper computer matched software sends the network architecture information of the power distribution network to each tester, and the tester determines the position of the current node of the tester and the conditions of power supplies, loads, rated voltage, short-circuit voltage, current and the like of different nodes of the power distribution network.
And S403, calculating and outputting the analog quantity of the current power distribution network node based on the circuit breaker position information of the current power distribution network node, the circuit breaker position information of other power distribution network nodes and the power distribution network architecture information.
The tester calculates and outputs the analog quantity of the current node of the current operation mode based on the circuit breaker position information of the current power distribution network node, the circuit breaker position information of other power distribution network nodes and the power distribution network architecture information and the network connection state of the topological power distribution network, wherein the analog quantity comprises bus voltage, branch current and the like. There are many methods of calculating the above-described analog quantity, for example, a method of load flow calculation, and the like.
Fig. 9 is a schematic diagram of the present invention for voltage and current distribution over a typical distribution network. The tester outputs voltages of different nodes and branch current through topology and calculation.
In an optional embodiment, the tester includes a time tick interface for receiving and sending time tick signals or messages, so as to ensure time synchronization of the testers of the power distribution network. By adopting the time synchronization interface, the problems that the state is switched by the alternating current of a tester in the prior art, the reliability of time synchronization is low, and the test failure is easy to cause are effectively avoided, and the complexity of the test process is reduced.
In the testing process, the tester records the testing process, and after the testing process is finished, the tester sends information related to the testing process to the matching software of the machine.
Further, when the power distribution network fails, the upper computer matched software sends the fault position and type to each tester. In this way, step S403 further includes calculating and outputting the analog quantity of the current distribution network node according to the circuit breaker position information of the current distribution network node, the circuit breaker position information of other distribution network nodes, the distribution network architecture information, and the fault position and type of the distribution network, and the topology distribution network connection state.
Fig. 10 is a schematic diagram of the voltage and current distribution of the present invention for a typical power distribution network fault condition. As shown in fig. 10, the tester further outputs the bus voltage and branch current of each node according to the fault location and type, and the power distribution network connection condition.
Furthermore, under the fault state of the power distribution network, the protection function of the power distribution network terminal acts to trip off part of the circuit breakers to isolate the fault. Therefore, in response to the change of the position of the circuit breaker of the current power distribution network node, the tester acquires the position of the circuit breaker of the current power distribution network node again, and after the position information of the circuit breaker is updated interactively, the connection condition of the power distribution network is topologically updated by each tester, and the analog quantity of the node is calculated and output.
Fig. 11 is a schematic diagram of the voltage and current distribution of the present invention in a fault isolated state for a typical power distribution network. As shown in fig. 11, after the distribution network terminal trips the breaker and isolates a fault, the tester acquires the position of the breaker again, calculates and outputs the bus voltage and the branch current of different nodes.
And after the fault occurs, the power distribution network starts a self-healing process. Fig. 12 is a schematic diagram of the voltage and current distribution during the self-healing process of a typical distribution network according to the present invention. As shown in fig. 12, the distribution network starts a self-healing process, the circuit breakers at different positions are controlled to be switched on one by one, and when the position of the circuit breaker changes each time, the corresponding tester collects position information of the circuit breaker again, so that the analog quantities (including bus voltage and branch current a and B) of different nodes are ensured to meet the actual operation condition of the distribution network.
And (5) after the self-healing process of the power distribution network is finished, the tester uploads the events in the testing process to upper computer matching software.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are exemplary embodiments and that the acts and modules referred to are not necessarily required in this application.
According to the power distribution network terminal testing method provided by the invention, a distributed testing scheme with mutual communication connection is adopted, the method can be used for system testing of the power distribution network, particularly in testing of a self-healing function of the power distribution network, the requirement of a testing process on personnel is reduced, the condition that the time sequence is inconsistent when a plurality of people manually cooperate is avoided, the complexity of the testing process is reduced, a testing conclusion can be automatically analyzed and judged, the overall efficiency of system testing is improved, the scheduled inspection time is reduced, and the requirement of system testing of the power distribution network is met.
According to another aspect, the present invention provides a tester for a power distribution network, the power distribution network including a plurality of nodes and corresponding testers, the tester being connected to corresponding terminals of the power distribution network, the tester including:
and the switching value interface is used for acquiring the circuit breaker position information of the corresponding power distribution network node. As shown in fig. 5, 6 and 7, according to different scenarios, the tester may obtain the circuit breaker position information of the current distribution network node in various ways. The collected circuit breaker position information can be hard contacts of a conventional circuit breaker position, and can also be digital circuit breaker position information. In the testing process, the position information of the circuit breaker may change, and the switching value interface is further used for responding to the change of the position of the circuit breaker of the corresponding power distribution network node and collecting the position information of the circuit breaker of the corresponding power distribution network node.
And the communication interface is used for sending the breaker position information of the corresponding power distribution network node and receiving the breaker position information of other power distribution network nodes and the power distribution network architecture information. The tester transmits the circuit breaker position information of the current power distribution network node and the circuit breaker position information of other power distribution network nodes to each other, so that each tester obtains the circuit breaker position information of all the power distribution network nodes. And the upper computer matched software sends the network architecture information of the power distribution network to each tester, and the tester determines the position of the current node of the tester and the conditions of power supply, load, rated voltage, short-circuit voltage, current and the like of different nodes of the power distribution network. In the testing process, the tester records the testing process, and after the testing process is finished, the tester sends information related to the testing process to the matching software of the machine. The communication interface is also used for sending information related to the test procedure. According to one embodiment, the communication modes supported by the communication interface include a ring network, a dual network and a single network.
And the calculation module is used for calculating the analog quantity of the corresponding power distribution network node based on the circuit breaker position information of the corresponding power distribution network node, the circuit breaker position information of other power distribution network nodes and the power distribution network architecture information. The tester calculates and outputs the analog quantity of the current node of the current operation mode based on the circuit breaker position information of the corresponding power distribution network node, the circuit breaker position information of other power distribution network nodes and the power distribution network architecture information and the network connection state of the topological power distribution network, wherein the analog quantity comprises bus voltage, branch current and the like. There are many methods of calculating the above-described analog quantity, for example, a method of load flow calculation, and the like. Further, when the power distribution network fails, the upper computer matched software sends the fault position and type to each tester. Therefore, the calculation module calculates the analog quantity of the corresponding power distribution network node according to the circuit breaker position information of the corresponding power distribution network node, the circuit breaker position information of other power distribution network nodes, the power distribution network architecture information and the fault position and type of the power distribution network.
And the analog quantity interface is used for outputting the analog quantity to the corresponding power distribution network terminal. And after the analog quantity is obtained through calculation, the tester outputs the analog quantity to the corresponding test network terminal.
In an optional embodiment, the tester includes a time tick interface for receiving and sending time tick signals or messages, thereby ensuring time synchronization with each tester in the power distribution network. By adopting the time synchronization interface, the problems that the state is switched by the alternating current of a tester in the prior art, the reliability of time synchronization is low, and the test failure is easy to cause are effectively avoided, and the complexity of the test process is reduced.
In another optional embodiment, the tester includes a configuration module configured to configure the tester according to the power distribution network architecture information.
According to the tester provided by the invention, a distributed test scheme with mutual communication connection is adopted, the tester can be used for system test of the power distribution network, particularly in the test of the self-healing function of the power distribution network, the requirement of a test process on personnel is reduced, the condition that the time sequence is inconsistent when a plurality of people manually cooperate is avoided, the complexity of the test process is reduced, a test conclusion can be automatically analyzed and judged, the overall efficiency of the system test is improved, the scheduled inspection time is reduced, and the requirement of the system test of the power distribution network is met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.
Claims (15)
1. A testing method for a distributed power distribution network comprises a plurality of power distribution network nodes and testers corresponding to the nodes, wherein the testers are connected with corresponding power distribution network terminals, and the method comprises the following steps:
collecting circuit breaker position information of a current power distribution network node in the plurality of power distribution network nodes;
receiving circuit breaker position information and power distribution network architecture information of other power distribution network nodes different from the current power distribution network node in the plurality of power distribution network nodes; and
and calculating and outputting the analog quantity of the current power distribution network node based on the circuit breaker position information of the current power distribution network node, the circuit breaker position information of other power distribution network nodes and the power distribution network architecture information.
2. The method of claim 1, wherein collecting circuit breaker position information for a current distribution network node of the plurality of distribution network nodes comprises:
and responding to the change of the circuit breaker position of the current power distribution network node, and collecting the circuit breaker position information of the current power distribution network node.
3. The method of claim 1 or 2, wherein collecting circuit breaker position information for a current distribution network node of the plurality of distribution network nodes comprises:
and directly acquiring the position of the circuit breaker of the current power distribution network node or acquiring the position of the circuit breaker of the current power distribution network node through a corresponding power distribution network terminal.
4. The method of claim 1 or 2, further comprising: and receiving and sending time tick signals or messages, thereby ensuring the time synchronization of each tester of the power distribution network.
5. The method of claim 1 or 2, wherein calculating and outputting the analog quantity of the current distribution network node based on the circuit breaker position information of the current distribution network node, the circuit breaker position information of the other distribution network nodes, and the distribution network architecture information comprises:
and calculating and outputting the analog quantity of the current power distribution network node according to the circuit breaker position information of the current power distribution network node, the circuit breaker position information of other power distribution network nodes, the power distribution network architecture information and the fault position and type of the power distribution network.
6. The method of claim 1 or 2, further comprising: the test procedure is recorded and information related to the test procedure is sent.
7. The method of claim 1 or 2, wherein the distribution network architecture information includes node power, load, rated voltage, short circuit voltage and current, and the analog quantities include bus voltage and branch current.
8. A tester for a distributed power distribution network, the power distribution network including a plurality of nodes and a tester corresponding to each of the nodes, the tester connecting corresponding terminals of the power distribution network, the tester comprising:
the switching value interface is used for acquiring the position information of the circuit breaker of the corresponding power distribution network node;
the communication interface is used for sending the breaker position information of the corresponding power distribution network node and receiving the breaker position information of other power distribution network nodes and the network architecture information of the power distribution network;
the calculation module is used for calculating the analog quantity of the corresponding power distribution network node based on the circuit breaker position information of the corresponding power distribution network node, the circuit breaker position information of the other power distribution network nodes and the power distribution network architecture information; and
and the analog quantity interface is used for outputting the analog quantity to the corresponding power distribution network terminal.
9. The test meter of claim 8, wherein the switching volume interface is further configured to:
and responding to the change of the circuit breaker position of the corresponding power distribution network node, and collecting the circuit breaker position information of the corresponding power distribution network node.
10. The test meter of claim 8 or 9, wherein the switching value interface is further configured to:
and directly acquiring the position of the circuit breaker of the corresponding power distribution network node or acquiring the position of the circuit breaker of the corresponding power distribution network node through a corresponding power distribution network terminal.
11. The test meter of claim 8 or 9, further comprising:
and the time setting interface is used for receiving and sending time setting signals or messages so as to ensure the time synchronization with each tester in the power distribution network.
12. The test meter of claim 8 or 9, wherein the computing module is further to:
and calculating the analog quantity of the corresponding power distribution network node according to the circuit breaker position information of the corresponding power distribution network node, the circuit breaker position information of other power distribution network nodes, the power distribution network architecture information and the fault position and type of the power distribution network.
13. A test meter according to claim 8 or 9, wherein the communication interface is further adapted to transmit information relating to a test procedure.
14. The test meter of claim 8 or 9, wherein the communication modes supported by the communication interface include a ring network, a dual network, and a single network.
15. The tester of claim 8 or 9, wherein the distribution network architecture information includes node power, load, rated voltage, short circuit voltage and current, and the analog quantities include bus voltage and branch current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167677.3A CN112834862A (en) | 2019-11-25 | 2019-11-25 | Testing method and tester for distributed power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167677.3A CN112834862A (en) | 2019-11-25 | 2019-11-25 | Testing method and tester for distributed power distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112834862A true CN112834862A (en) | 2021-05-25 |
Family
ID=75922395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911167677.3A Pending CN112834862A (en) | 2019-11-25 | 2019-11-25 | Testing method and tester for distributed power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112834862A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684308A (en) * | 2012-05-18 | 2012-09-19 | 上海交通大学 | Superconducting state information-based power distribution network self-healing system and method |
| CN103051065A (en) * | 2012-12-29 | 2013-04-17 | 安徽科大智能电网技术有限公司 | Distribution-automation distributed type FA (feeder automation) linkage test method and system |
| CN203870470U (en) * | 2014-06-12 | 2014-10-08 | 国网上海市电力公司 | Feeder automation test system without network |
| CN105281435A (en) * | 2015-10-21 | 2016-01-27 | 国网山东省电力公司潍坊供电公司 | Intelligent distribution network oriented distribution type fault detection and isolation system and working method |
| CN107167680A (en) * | 2017-05-09 | 2017-09-15 | 国网上海市电力公司 | A kind of power distribution network distributed test system based on RTDS |
-
2019
- 2019-11-25 CN CN201911167677.3A patent/CN112834862A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684308A (en) * | 2012-05-18 | 2012-09-19 | 上海交通大学 | Superconducting state information-based power distribution network self-healing system and method |
| CN103051065A (en) * | 2012-12-29 | 2013-04-17 | 安徽科大智能电网技术有限公司 | Distribution-automation distributed type FA (feeder automation) linkage test method and system |
| CN203870470U (en) * | 2014-06-12 | 2014-10-08 | 国网上海市电力公司 | Feeder automation test system without network |
| CN105281435A (en) * | 2015-10-21 | 2016-01-27 | 国网山东省电力公司潍坊供电公司 | Intelligent distribution network oriented distribution type fault detection and isolation system and working method |
| CN107167680A (en) * | 2017-05-09 | 2017-09-15 | 国网上海市电力公司 | A kind of power distribution network distributed test system based on RTDS |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10680430B2 (en) | Fault recovery systems and methods for electrical power distribution networks | |
| CN110148930B (en) | Method for fault location and automatic topology identification in power distribution network | |
| WO2021139071A1 (en) | Smart outdoor switch cabinet, and closed-loop i-shaped power distribution network for same | |
| CN107394897A (en) | A kind of power distribution network intelligence self-healing method and system based on topological diagram | |
| CN107356838B (en) | Fault processing function test method for power distribution automation master station system | |
| CN107846015B (en) | Intelligent power distribution network load transfer optimal path selection method based on peer-to-peer communication | |
| Torres et al. | Distributed intelligent system for self-healing in smart grids | |
| CN107346886B (en) | Power distribution network load transfer method and system | |
| CN104518564A (en) | Backup automatic switching apparatus with area automatic switching function, and backup automatic switching method | |
| AU2018363059B2 (en) | Control system for and method of fault location, isolation and supply restoration | |
| CN112421612B (en) | Medium-voltage main line branch line analysis method based on distribution network operation state | |
| CN111555458B (en) | Distributed feeder automation system of looped network circuit architecture | |
| CN103051059B (en) | Feeder automation realizing method for residential area with smart distribution network | |
| CN112834862A (en) | Testing method and tester for distributed power distribution network | |
| CN106712298B (en) | Monitoring system for distribution automation system | |
| CN113285432B (en) | Automatic device and protection method for relay protection of power system | |
| CN111786383B (en) | Spare power automatic switching device and method for realizing mutual backup of multiple power incoming lines | |
| CN112531911B (en) | Equipment network measurement and control management system | |
| Kamps et al. | Reliability of decentralized network automation systems and impacts on distribution network reliability | |
| CN112540262A (en) | Voltage time type feeder automation test system and test method thereof | |
| CN113295968B (en) | Fault positioning method for multi-source information of power distribution network master station | |
| CN112736875B (en) | Hybrid self-healing method for input and commissioning equipment of power distribution network | |
| CN114069569B (en) | Method for reducing electric quantity loss of distribution box in fault state | |
| CN111711191B (en) | Distribution line network topology automatic reconstruction method | |
| CN110137963B (en) | Power failure self-recovery method for power distribution system |
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 |