CN114362370B - Feeder terminal testing system and feeder terminal testing method - Google Patents
Feeder terminal testing system and feeder terminal testing method Download PDFInfo
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- CN114362370B CN114362370B CN202210005609.2A CN202210005609A CN114362370B CN 114362370 B CN114362370 B CN 114362370B CN 202210005609 A CN202210005609 A CN 202210005609A CN 114362370 B CN114362370 B CN 114362370B
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- 238000012360 testing method Methods 0.000 title claims abstract description 221
- 238000004891 communication Methods 0.000 claims abstract description 74
- 238000003745 diagnosis Methods 0.000 claims abstract description 51
- 230000009471 action Effects 0.000 claims abstract description 50
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 16
- 238000004088 simulation Methods 0.000 claims abstract description 10
- 230000006855 networking Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The embodiment of the invention discloses a feeder terminal testing system and a feeder terminal testing method, wherein a peer-to-peer communication terminal in the feeder terminal testing system sends first analog data to a feeder terminal, wherein the first analog data is analog data of an upstream switch and a downstream switch of a target switch in a power distribution network; the relay protection tester sends second simulation data to the feeder terminal, wherein the second simulation data are data obtained by simulating the target switch by the relay protection tester, the peer-to-peer communication terminal receives fault diagnosis data generated by the feeder terminal and action data of the control target switch, and a test result of the feeder terminal is generated according to the fault diagnosis data and the action data. On the one hand, the feeder terminal is tested without a plurality of switches and a feeder terminal networking, the test occupation space is small, and on the other hand, the peer-to-peer communication terminal and the relay protection tester are connected to the feeder terminal for testing the feeder terminal which is required to be retested in the power distribution network, the power distribution network is not required to be tested in a power failure, and adverse effects caused by the power failure are avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of power distribution network equipment testing, in particular to a feeder terminal testing system and a feeder terminal testing method.
Background
The intelligent distributed feeder automation terminal (hereinafter referred to as feeder terminal) is connected with the switch in the power distribution network, and is used for collecting switch data and communicating with other feeder terminals to obtain switch data of other switches, so as to make a control decision for the switch through the switch data of the switch and the switch data of other switches.
The test of the feeder terminals not only debugging the conventional three remote functions of voltage and current collection, fault detection, switch control and the like, but also testing the interoperability among the feeder terminals, such as testing information model modeling, communication mechanism and functional logic to be normal. Therefore, the test of the feeder terminals requires networking of a plurality of feeder terminals for testing, a larger site is often required, if the line of the distribution network changes, the feeder terminals need to be debugged again, the field test workload is large, and because the feeder terminals are installed at different places in the distribution network, communication and coordination are difficult during the test, and meanwhile, the distribution network is required to be powered off, so that the test time is required to be as short as possible, and the power failure time is shortened.
Disclosure of Invention
The embodiment of the invention provides a feeder terminal testing system and a feeder terminal testing method, which are used for solving the problems that a plurality of feeder terminals are required to be networked for testing a feeder terminal, a large testing site is occupied, and power failure testing and communication coordination are required to be difficult when a power distribution network line changes in the prior art.
In a first aspect, an embodiment of the present invention provides a feeder terminal testing system, configured to test a feeder terminal, where the feeder terminal is used to connect with a target switch in a power distribution network, and the feeder terminal testing system includes a peer-to-peer communication terminal connected with the feeder terminal and a relay protection tester;
The peer-to-peer communication terminal is used for sending first analog data to the feeder terminal, wherein the first analog data is analog data of an upstream switch and a downstream switch of the target switch in the power distribution network;
the relay protection tester is used for sending second simulation data to the feeder terminal, wherein the second simulation data are obtained by simulating the target switch by the relay protection tester;
the peer-to-peer communication terminal is further configured to receive test data from the feeder terminal, where the test data is fault diagnosis data generated after the feeder terminal receives the first analog data and the second analog data, and action data for controlling the target switch, and generate a test result of the feeder terminal according to the fault diagnosis data and the action data.
Optionally, the peer communication terminal and the relay protection tester are further configured to receive a test instruction, so that the peer communication terminal sends first analog data to the feeder terminal when receiving the test instruction, and the relay protection tester sends second analog data to the feeder terminal when receiving the test instruction.
Optionally, the target switch is one of a sectionalizer, a tie switch and a head switch, and the test instruction includes one of a sectionalizer test instruction, a tie switch test instruction and a head switch test instruction.
Optionally, the peer-to-peer communication terminal is configured to obtain a test policy corresponding to the test instruction when receiving the test instruction, and send analog data corresponding to the test policy to the feeder terminal;
And the relay protection tester is used for acquiring a test strategy corresponding to the test instruction when receiving the test instruction, configuring a switch analog quantity based on the test strategy, and transmitting the switch analog quantity to the feeder terminal.
Optionally, the first analog data and the second analog data are test signals used by a preset test strategy, and the peer-to-peer communication terminal is further configured to:
Judging whether the fault diagnosis data are preset diagnosis data corresponding to the test strategy or not, and judging whether the action data are preset diagnosis data corresponding to the test strategy or not;
if yes, generating a test result which is qualified in test;
If not, generating a test result with unqualified test.
Optionally, the peer-to-peer communication terminal is further configured to send a time synchronization frame to the feeder terminal, and determine whether the feeder terminal modifies time when receiving the time synchronization frame.
Optionally, the relay protection tester is further configured to send switch type analog data to the feeder terminal;
the peer-to-peer communication terminal is further configured to determine whether switch flag bit information of a specified type is received from the feeder terminal.
In a second aspect, an embodiment of the present invention provides a feeder terminal testing method, configured to test a feeder terminal in the feeder terminal testing system according to any one of the first aspect, including:
Sending first analog data to the feeder terminal, wherein the first analog data is analog data of an upstream switch and a downstream switch of the target switch in the power distribution network;
Transmitting second simulation data to the feeder terminal, wherein the second simulation data are obtained by simulating the target switch by the relay protection tester;
Receiving test data from the feeder terminal, wherein the test data is fault diagnosis data and action data for controlling the target switch, wherein the fault diagnosis data is generated after the feeder terminal receives the first analog data and the second analog data;
And generating a test result of the feeder terminal according to the fault diagnosis data and the action data.
Optionally, before sending the first analog data to the feeder terminal, the method further includes:
and receiving a test instruction.
Optionally, the first analog data and the second analog data are test signals used by a preset test strategy, and the generating a test result of the feeder terminal according to the fault diagnosis data and the action data includes:
Judging whether the fault diagnosis data are preset diagnosis data corresponding to the test strategy or not, and judging whether the action data are preset action data corresponding to the test strategy or not;
if yes, generating a test result which is qualified in test;
If not, generating a test result with unqualified test.
In the feeder terminal test system of the embodiment of the invention, the peer-to-peer communication terminal and the relay protection tester are both connected with the feeder terminal, and because the peer-to-peer communication terminal can send first analog data to the feeder terminal, the first analog data is analog data of an upstream switch and a downstream switch of a target switch connected with the feeder terminal in the power distribution network, the relay protection tester can send second analog data to the feeder terminal, the second analog data is data obtained by simulating the target switch connected with the feeder terminal in the power distribution network by the relay protection tester, and the feeder terminal can generate fault diagnosis data and action data for controlling the target switch after receiving the first analog data and the second analog data, thereby generating test results of the feeder terminal according to the fault diagnosis data and the action data, and independently testing each feeder terminal.
Drawings
Fig. 1 is a schematic structural diagram of a feeder terminal testing system according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a switch in a power distribution network;
fig. 3 is a flowchart of a feeder terminal testing method according to a second embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Example 1
Fig. 1 is a schematic structural diagram of a feeder terminal testing system according to an embodiment of the present invention, where the feeder terminal testing system is configured to execute a feeder terminal testing method according to an embodiment of the present invention, so as to test a feeder terminal. As shown in fig. 1, the feeder terminal test system of the embodiment of the present invention includes a peer communication terminal 20 connected to a feeder terminal 10 and a relay protection tester 30.
In the power distribution network, the feeder terminal 10 is used for being connected with a switch in the power distribution network, for collecting operation data such as current, voltage and switching value of the switch, performing switching-on and tripping control on the switch, and sending the collected data to other feeder terminals 10 through a network, and receiving data sent by other feeder terminals 10.
The relay protection tester 30 is used to simulate a target switch in the distribution network connected to the feeder terminal 10, which may be a sectionalizer switch, a tie switch, a head switch, etc. The feeder terminal 10 may request analog data from the relay protection tester 30 so that the relay protection tester 30 transmits second analog data to the feeder terminal 10, where the second analog data is data obtained by the relay protection tester 30 simulating the target switch, and the second analog data may be data obtained by the relay protection tester 30 simulating the switching action of the target switch, or data such as fault current, voltage, etc. when the target switch is simulated to be faulty, for example.
The peer communication terminal 20 may transmit first analog data to the feeder terminal 10, where the first analog data may be data that simulates an upstream and downstream switch of a target switch connected to the feeder terminal 10 in the power distribution network, and may be telemetry data such as fault information, switch switching position information, protection action information, communication anomaly information, and load section of the upstream and downstream switch, for example.
The peer communication terminal 20 is further configured to receive test data from the feeder terminal 10, where the test data is fault diagnosis data and action data of the control target switch generated after the feeder terminal 10 receives the first analog data and the second analog data, and generate a test result of the feeder terminal according to the fault diagnosis data and the action data.
When the feeder terminal 10 is tested, the first analog data and the second analog data may be preconfigured according to different test items, in one example, the first analog data may be preconfigured in the peer communication terminal 20, the second analog data may be preconfigured in the relay protection tester 30, when the peer communication terminal 20 and the relay protection tester 30 receive a test instruction for the test item, for example, a test instruction for the test item is triggered by a button on the peer communication terminal 20 and the relay protection tester 30, or the test instruction is sent to the peer communication terminal 20 and the relay protection tester 30 through other terminals, the peer communication terminal 20 determines a test policy of the test item corresponding to the test instruction, the first analog data configured for the test policy is sent to the feeder terminal 10, the relay protection tester 30 also determines a test policy of the test item corresponding to the test instruction, and configures a switching analog quantity, a fault current, a fault voltage, and the like as the second analog data based on the test policy and sends the second analog data to the feeder terminal 10.
In another example, the different test item preconfigured first analog data and second analog data may be stored on other terminals in communication with the peer communication terminal 20 and the relay protection tester 30, test instructions for the test item may be sent at the other terminals to the peer communication terminal 20 and the relay protection tester 30, and then the other terminals send the first analog data to the peer communication terminal 20 and the second analog data to the relay protection tester 30.
The first analog data and the second analog data are respectively configured on the peer-to-peer communication terminal 20 and the relay protection tester 30, the tester does not need to configure the analog data and directly sends corresponding test instructions, the operation is simple and convenient, the first analog data and the second analog data are configured on other terminals, the tester can rewrite the first analog data and the second analog data according to the position of the target switch connected with the feeder terminal in the power distribution network, and the flexibility of the test is high.
After the feeder terminal 10 receives the first analog data and the second analog data, the feeder terminal 10 makes fault diagnosis and control actions according to the first analog data and the second analog data, and sends the fault diagnosis and control actions to the peer communication terminal 20, in the peer communication terminal 20, whether the feeder terminal 10 makes the fault diagnosis and control actions consistent with the test items can be determined according to the fault diagnosis and control actions, if yes, the test result of the feeder terminal 10 is determined to be qualified, otherwise, the test result is determined to be unqualified.
Specifically, whether the fault diagnosis data is preset diagnosis data corresponding to the test strategy or not and whether the action data is preset diagnosis data corresponding to the test strategy or not can be judged, if yes, a test result which is qualified in test is generated, and if not, a test result which is unqualified in test is generated. In order to make the feeder terminal test system of the embodiments of the present invention more clearly understood by those skilled in the art, the following description will be given with reference to examples.
As shown in fig. 2, a schematic diagram of a switch in a distribution network is shown, in fig. 2, a switch M06 in the ring main unit 2 is taken as a target switch connected to a feeder terminal 10 to be tested, and a switch M05, a switch F09 in the ring main unit 2, and a switch M07 in the ring main unit 3 are taken as upstream and downstream switches of the switch M06 as examples.
When the switch M06 is used as a segment switch, the test strategies and judgment criteria corresponding to part of the test items are shown in the following table 1:
TABLE 1
The test strategies and criteria for the partial fault test when the target switch is a sectionalizer are listed in table 1 above, although other fault tests are also possible and are not listed here.
As shown in table 1, taking the test item K1 fault test as an example, in the state 1, the downstream message of the M06 communication module refers to the message sent by the peer communication terminal 20 to the feeder terminal 10, that is, the first analog data, the application of the analog quantity and the switching quantity by the M06 may refer to the second analog data sent by the relay protection tester 30 to the feeder terminal 10 after simulating the target switch M06, and the upstream message 1 of the M06 and the upstream message 2 of the M06 are the fault diagnosis data that the feeder terminal 10 should send to the peer communication terminal 20 when the test is qualified, and the action logic is the action data that the feeder terminal 10 should send to the peer communication terminal 20 when the test is qualified.
According to the above table 1, when the K1 fault test is performed, the peer communication terminal 20 transmits a downlink message "M05 node fault" to the feeder terminal 10; m07 node failure; the M05 node fault is successfully removed ", the relay protection tester 30 sends the switching data of the switch M06, namely, bilateral voltage, switch closing and inter-phase overcurrent, to the feeder terminal 10, the feeder terminal 10 generates fault diagnosis data and action data after receiving the data, the fault diagnosis data and the action data are sent to the peer communication terminal 20, the peer communication terminal 20 can compare the fault diagnosis data with the uplink message 1 and the uplink message 2 in the table 1, the action data are compared with the action logic in the table 1, if the comparison is consistent, the feeder terminal 10 is determined to be qualified, and otherwise, the feeder terminal 10 is determined to be unqualified.
Similarly, when the switch M04 is used as the tie switch, the test strategies and the judgment criteria corresponding to the partial test items are shown in the following table 2:
TABLE 2
When the switch M04 is used as the first switch, the test strategies and judgment criteria corresponding to part of the test items are shown in the following table 3:
of course, other test items such as GOOSE communication may be tested in addition to the above-listed test items, which are not listed here.
In another optional embodiment of the present invention, the peer-to-peer communication terminal 20 is further configured to send a time-to-time frame to the feeder terminal 10, determine whether the feeder terminal 10 modifies time when receiving the time-to-time frame, in practical application, multiple feeder terminals in the power distribution network are in distributed networking, the requirements on time accuracy of fault diagnosis, fault isolation and self-healing are high, the time unification requirement on the feeder terminal 10 in the power distribution network is high, and the feeder terminal 10 is required to have a time-to-time function, so that the peer-to-peer communication terminal 20 can send a frame of time-to-time signal frame to the feeder terminal 10, modify time when the feeder terminal 10 receives the time-to-time signal frame, and return a response message that the modification time is successful to the peer-to-peer communication terminal 20, and when receiving the response message, the peer-to-peer communication terminal 20 determines that the time-to-time function test of the feeder terminal 10 is qualified, otherwise disqualified, thereby ensuring that the feeder terminal 10 installed in the power distribution network can have the time-to-time function.
In another alternative embodiment, the relay protection tester 30 is further configured to send switch type analog data to the feeder terminal 10, and the peer communication terminal 20 is further configured to determine whether the specified type of switch flag bit information is received from the feeder terminal 10, specifically, when the relay protection tester 30 simulates that the switch is double-sided pressurized and the switch is opened, if the feeder terminal 10 receives a signal that the relay protection tester 30 applies double-sided pressure to the switch and the switch is opened, the switch is described as a tie switch, the feeder terminal 10 sends a flag bit of the tie switch to the peer communication terminal 20, if the peer communication terminal 20 receives the flag bit, the feeder terminal 10 is described as identifying that the function of the tie switch is normal, otherwise, the function is abnormal.
In another example, the feeder terminal 10 is further provided with a pressing plate withdrawal function, when the function is triggered, if the peer communication terminal 20 receives a withdrawal flag, it indicates that the pressing plate withdrawal function of the feeder terminal 10 is normal, otherwise, indicates that the pressing plate withdrawal function of the feeder terminal 10 is abnormal, so that the pressing plate withdrawal function of the feeder terminal 10 can be tested, and the normal pressing plate withdrawal function of the feeder terminal 10 installed in the power distribution network is ensured.
Of course, not limited to the platen back-off function, other functions on the feeder terminal 10 may be tested.
In the feeder terminal test system of the embodiment of the invention, the peer-to-peer communication terminal and the relay protection tester are both connected with the feeder terminal, and because the peer-to-peer communication terminal can send first analog data to the feeder terminal, the first analog data is analog data of an upstream switch and a downstream switch of a target switch connected with the feeder terminal in the power distribution network, the relay protection tester can send second analog data to the feeder terminal, the second analog data is data obtained by simulating the target switch connected with the feeder terminal in the power distribution network by the relay protection tester, and the feeder terminal can generate fault diagnosis data and action data for controlling the target switch after receiving the first analog data and the second analog data, thereby generating test results of the feeder terminal according to the fault diagnosis data and the action data, and independently testing each feeder terminal.
Example two
Fig. 3 is a flowchart of a feeder terminal testing method provided by the second embodiment of the present invention, where the embodiment of the present invention is applicable to a case of testing a feeder terminal in the feeder terminal testing system provided by the first embodiment, as shown in fig. 3, the feeder terminal testing method of the embodiment of the present invention may include the following steps:
S301, sending first analog data to a feeder terminal, wherein the first analog data are analog data of an upstream switch and a downstream switch of a target switch in a power distribution network.
As shown in fig. 1, the feeder terminal test system includes a peer communication terminal 20 and a relay protection tester 30 connected to a feeder terminal 10, where the feeder terminal 10 is used for connecting with a switch in a power distribution network, collecting operation data such as current, voltage, switching value, and the like of the switch, performing switching on/off control on the switch, and sending the collected data to other feeder terminals 10 through a network, and receiving data sent by other feeder terminals 10.
The peer communication terminal 20 may transmit first analog data to the feeder terminal 10, where the first analog data may be data that simulates an upstream and downstream switch of a target switch connected to the feeder terminal 10 in the power distribution network, and may be telemetry data such as fault information, switch switching position information, protection action information, communication anomaly information, and load section of the upstream and downstream switch, for example.
The peer communication terminal 20 may send the first analog data to the feeder terminal upon receiving the test instruction. In one example, the first analog data may be preconfigured in the peer communication terminal 20, when the peer communication terminal 20 receives a test instruction for a test item, such as triggering the test instruction for the test item through a button on the peer communication terminal 20 or transmitting the test instruction to the peer communication terminal 20 through other terminals, the peer communication terminal 20 determines a test policy of the test item corresponding to the test instruction, and transmits the first analog data configured for the test policy to the feeder terminal 10.
S302, sending second analog data to the feeder terminal, wherein the second analog data is a signal obtained by simulating a target switch by the relay protection tester.
The relay protection tester 30 is used to simulate a target switch in the distribution network connected to the feeder terminal 10, which may be a sectionalizer switch, a tie switch, a head switch, etc. The feeder terminal 10 may request analog data from the relay protection tester 30 so that the relay protection tester 30 transmits second analog data to the feeder terminal 10, where the second analog data is data obtained by the relay protection tester 30 simulating the target switch, and the second analog data may be data obtained by the relay protection tester 30 simulating the switching action of the target switch, or data such as fault current, voltage, etc. when the target switch is simulated to be faulty, for example.
When the feeder terminal 10 is tested, the second analog data may be preconfigured according to different test items, in one example, the second analog data may be preconfigured in the relay protection tester 30, and when the relay protection tester 30 receives a test instruction for the test item, for example, the test instruction for the test item is triggered through a key on the relay protection tester 30, or the test instruction is sent to the relay protection tester 30 through other terminals, the relay protection tester 30 determines a test policy of the test item corresponding to the test instruction, and configures a switching analog value, a fault current, a fault voltage and the like as the second analog data based on the test policy and sends the second analog data to the feeder terminal 10.
S303, receiving test data from the feeder terminal, wherein the test data is fault diagnosis data and action data of a control target switch, which are generated after the feeder terminal receives the first analog data and the second analog data.
After receiving the first analog data and the second analog data, the feeder terminal 10 makes a fault diagnosis and control action based on the first analog data and the second analog data, and transmits the fault diagnosis and control action to the peer communication terminal 20.
S304, generating a test result of the feeder terminal according to the fault diagnosis data and the action data.
Optionally, the first analog data and the second analog data are test signals used by a preset test strategy, so that whether the fault diagnosis data are preset diagnosis data corresponding to the test strategy or not and whether the action data are preset action data corresponding to the test strategy or not can be judged; if yes, generating a test result which is qualified in test; if not, generating a test result with unqualified test.
Specifically, in the peer communication terminal 20, it may be determined whether the feeder terminal 10 has made a fault diagnosis and control action consistent with the test item according to the fault diagnosis and control action, and if so, it is determined that the test result of the feeder terminal 10 is acceptable, otherwise, it is not acceptable.
In the feeder terminal test system of the embodiment of the invention, the peer-to-peer communication terminal and the relay protection tester are both connected with the feeder terminal, because the peer-to-peer communication terminal can send first analog data to the feeder terminal, the first analog data is analog data of an upstream switch and a downstream switch of a target switch connected with the feeder terminal in the power distribution network, the relay protection tester can send second analog data to the feeder terminal, the second analog data is signals obtained by simulating the target switch connected with the feeder terminal in the power distribution network by the relay protection tester, and the feeder terminal can generate fault diagnosis data and action data for controlling the target switch after receiving the first analog data and the second analog data, so that test results of the feeder terminal can be generated according to the fault diagnosis data and the action data, each feeder terminal can be tested independently.
It should be noted that, for the method embodiment, since it is substantially similar to the system embodiment, the description is relatively simple, and the relevant points refer to the part of the description of the system embodiment.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (6)
1. The feeder terminal testing system is characterized by being used for testing a feeder terminal, wherein the feeder terminal is used for being connected with a target switch in a power distribution network, and comprises a peer-to-peer communication terminal and a relay protection tester which are connected with the feeder terminal;
The peer-to-peer communication terminal is used for sending first analog data to the feeder terminal, wherein the first analog data is analog data of an upstream switch and a downstream switch of the target switch in the power distribution network;
the relay protection tester is used for sending second simulation data to the feeder terminal, wherein the second simulation data are obtained by simulating the target switch by the relay protection tester;
The peer-to-peer communication terminal is further configured to receive test data from the feeder terminal, where the test data is fault diagnosis data generated after the feeder terminal receives the first analog data and the second analog data, and action data for controlling the target switch, and generate a test result of the feeder terminal according to the fault diagnosis data and the action data;
The peer-to-peer communication terminal and the relay protection tester are also used for receiving a test instruction, so that the peer-to-peer communication terminal sends first analog data to the feeder terminal when receiving the test instruction, and the relay protection tester sends second analog data to the feeder terminal when receiving the test instruction;
the target switch is one of a sectionalizer switch, a tie switch and a head switch, and the test instruction comprises one of a sectionalizer switch test instruction, a tie switch test instruction, a head switch test instruction and a communication test instruction;
The peer-to-peer communication terminal is used for acquiring a test strategy corresponding to the test instruction when receiving the test instruction, and sending analog data corresponding to the test strategy to the feeder terminal;
The relay protection tester is used for acquiring a test strategy corresponding to the test instruction when receiving the test instruction, configuring a switch analog quantity based on the test strategy, and transmitting the switch analog quantity to the feeder terminal;
The first analog data and the second analog data are test signals used by a preset test strategy, and the peer-to-peer communication terminal is further used for:
Judging whether the fault diagnosis data are preset diagnosis data corresponding to the test strategy or not, and judging whether the action data are preset action data corresponding to the test strategy or not;
if yes, generating a test result which is qualified in test;
If not, generating a test result with unqualified test.
2. The feeder terminal testing system of claim 1, wherein the peer-to-peer communication terminal is further configured to send a time-to-time frame to the feeder terminal, determining whether the feeder terminal is to modify time when the time-to-time frame is received.
3. The feeder terminal testing system of claim 1,
The relay protection tester is also used for sending switch type analog data to the feeder terminal;
the peer-to-peer communication terminal is further configured to determine whether switch flag bit information of a specified type is received from the feeder terminal.
4. A feeder terminal testing method, for use in the feeder terminal testing system of any one of claims 1-3, comprising:
Sending first analog data to a feeder terminal, wherein the first analog data is analog data of an upstream switch and a downstream switch of a target switch in a power distribution network;
Transmitting second simulation data to the feeder terminal, wherein the second simulation data are data obtained by simulating the target switch by a relay protection tester;
Receiving test data from the feeder terminal, wherein the test data is fault diagnosis data and action data for controlling the target switch, wherein the fault diagnosis data is generated after the feeder terminal receives the first analog data and the second analog data;
And generating a test result of the feeder terminal according to the fault diagnosis data and the action data.
5. The feeder terminal testing method of claim 4, further comprising, prior to transmitting the first analog data to the feeder terminal:
and receiving a test instruction.
6. The feeder terminal testing method of claim 4, wherein the first analog data and the second analog data are test signals used by a preset test strategy, and the generating the test result of the feeder terminal according to the fault diagnosis data and the action data comprises:
Judging whether the fault diagnosis data are preset diagnosis data corresponding to the test strategy or not, and judging whether the action data are preset action data corresponding to the test strategy or not;
if yes, generating a test result which is qualified in test;
If not, generating a test result with unqualified test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210005609.2A CN114362370B (en) | 2022-01-05 | 2022-01-05 | Feeder terminal testing system and feeder terminal testing method |
Applications Claiming Priority (1)
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| CN104426757A (en) * | 2013-09-09 | 2015-03-18 | 贵州电网公司六盘水供电局 | Special data interaction method and device for intelligent substation |
| CN204481571U (en) * | 2015-03-10 | 2015-07-15 | 国家电网公司 | A kind of Loop Closing Operation in Distribution Network control system based on terminal peer-to-peer communications |
| CN105305636A (en) * | 2015-11-19 | 2016-02-03 | 国网上海市电力公司 | Automatic interoperation method of intelligently distributed feeder lines |
| CN110994786A (en) * | 2019-11-12 | 2020-04-10 | 广东电网有限责任公司 | Single intelligent distributed power distribution terminal control method based on peer-to-peer communication |
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| US9614660B2 (en) * | 2013-05-03 | 2017-04-04 | Futurewei Technologies, Inc. | Self-synchronizing probe sequence |
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| CN104426757A (en) * | 2013-09-09 | 2015-03-18 | 贵州电网公司六盘水供电局 | Special data interaction method and device for intelligent substation |
| CN204481571U (en) * | 2015-03-10 | 2015-07-15 | 国家电网公司 | A kind of Loop Closing Operation in Distribution Network control system based on terminal peer-to-peer communications |
| CN105305636A (en) * | 2015-11-19 | 2016-02-03 | 国网上海市电力公司 | Automatic interoperation method of intelligently distributed feeder lines |
| CN110994786A (en) * | 2019-11-12 | 2020-04-10 | 广东电网有限责任公司 | Single intelligent distributed power distribution terminal control method based on peer-to-peer communication |
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