CN109768902A - Intelligent substation site looped network test method and test equipment - Google Patents
Intelligent substation site looped network test method and test equipment Download PDFInfo
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- CN109768902A CN109768902A CN201910135529.7A CN201910135529A CN109768902A CN 109768902 A CN109768902 A CN 109768902A CN 201910135529 A CN201910135529 A CN 201910135529A CN 109768902 A CN109768902 A CN 109768902A
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Abstract
The present invention discloses a kind of intelligent substation site looped network test method and test equipment.The method comprise the steps that test equipment and at least one target device form two-way dual redundant ring-like network structure；The communication performance of any looped network or any target device in the two-way dual redundant ring-like network structure is tested by test equipment.The present invention can be to the communication performance for being serially connected in test target equipment in two-way dual redundant ring-like network structure by test equipment and the two-way dual redundant ring-like network structure of at least one target device composition and test equipment；Guarantee to be in satisfactory working condition before site element protection comes into operation.
Description
Technical field
The present invention relates to field of test instrument, in particular to being distributed in the protection of New Generation of Intelligent substation site
The looped network test method and test equipment of formula main transformer protection and building block system bus differential protection.
Background technique
Intelligent substation technology is quickly grown at present, relative to conventional substation, reduces the secondary electricity of substation
Cable improves the shared level of information.The intermediate links such as the intelligent terminal of intelligent substation and combining unit generally use networking
Communication mode, the actuation time of protection is longer, and combining unit and intelligent terminal are typically mounted at outdoor convergence control cabinet on the spot, operation
Environment rather harsh, anti-electromagnetic interference capability is poor, and failure rate is higher.
To solve the above-mentioned problems, it is proposed protective relaying device of new generation, i.e. site is protected；For distributed main transformer
The process layer ring-type communication network of protection and each target device composition of building block system bus differential protection, formulates site element protection target
The looped network communication specification of equipment room, for realize looped network in equipment interoperability, specified in this specification looped network topological structure,
The technical requirements such as communication mechanism and message format.
The more devices that existing site looped network communication test needs to protect site form a looped network, then replace
A target device in looped network, come test single target equipment looped network communication it is whether normal；While single target equipment
State needs to observe by the daemon software of site protective device producer, not enough intuitively.
Summary of the invention
The embodiment of the present invention at least discloses a kind of intelligent substation site looped network test method, is able to solve and passes through test
Equipment and looped network form two-way dual redundant ring-like network structure, realize that online and accurate communication performance is surveyed in any looped network
Examination.
The described method includes:
Test equipment and at least one target device form two-way dual redundant ring-like network structure；
Any looped network or any target in the two-way dual redundant ring-like network structure is tested by test equipment to set
Standby communication performance.
In some embodiments disclosed by the invention, communicated by the looped network that the test equipment tests the target device
Performance is configured as:
The test equipment, in operating status, analyzes the report of online target device in the looped network at the looped network
Text, for showing the information and state of the target device.
In some embodiments disclosed by the invention, the communication performance of the looped network, quilt are tested by the test equipment
It is configured that
The test equipment keeps silent at the looped network in operating status, and forwards and count in the looped network
Message, for judging the data throughout of the looped network.
In some embodiments disclosed by the invention, the communication performance of the looped network, quilt are tested by the test equipment
It is configured that
The test equipment at runtime, chooses the type of message of the first test packet and described at the looped network
First test packet of looped network injection preset pressure；
The test equipment receives corresponding first returned packet of first test packet that the looped network returns；
The test equipment judges the data throughout of the looped network according to first returned packet.
In some embodiments disclosed by the invention, the communication performance of the looped network, quilt are tested by the test equipment
It is configured that
The test equipment at the looped network at runtime, survey by inject pre-set density and quantity in the looped network second
Try message；
The test equipment receives corresponding second returned packet of second test packet that the looped network returns；
The test equipment detects the message of the looped network according to second test packet and second returned packet
Packet loss.
In some embodiments disclosed by the invention, second test packet includes at least equipment repeating frame, using weight
Multi-frame, looped network storm frame, abnormal frame it is one or more.
In some embodiments disclosed by the invention, the communication performance of the looped network, quilt are tested by the test equipment
It is configured that
The test equipment at runtime, tests the section of all target devices in the looped network at the looped network respectively
Point delay value, and count the link delay value that all node delay values are the looped network.
In some embodiments disclosed by the invention, the test equipment tests the node delay value of the target device,
It is configured as:
The test equipment acquires the host address of all target devices in the looped network, and according to the host address
Corresponding link delay message is sent respectively；
The target device responds the link delay message, and returns to third returned packet to the test equipment；
The test equipment obtains the node delay value according to the link delay message and the third returned packet.
The embodiment of the present invention at least discloses a kind of test equipment.
The equipment includes processor and industrial personal computer；
The processor is configured with two groups of communication interfaces, and by described in communication interface described in two groups and at least one
Target device forms the two-way dual redundant ring-like network structure and the processor in the two-way dual redundant loop network
Any looped network of structure sends test packet, and receives the returned packet of any target device in the looped network,
And the communication performance of the looped network is judged according to the test packet and the returned packet；
The industrial personal computer is configured as coupling the processor and the industrial personal computer is configured as configuring the processor
In the test packet that the looped network is sent.
In some embodiments disclosed by the invention, the industrial personal computer is configured as being coupled with display；
The industrial personal computer is configured as generating graph data according to the communication performance；
The display is configured as showing the graph data.
For above scheme, the present invention is by being referring to the drawings described in detail disclosed exemplary embodiment, also
The other feature and its advantage for making the embodiment of the present invention understand.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the functional block diagram of embodiment test equipment.
Fig. 2 is a kind of topological diagram of the two-way dual redundant ring-like network structure of embodiment；
Fig. 3 is a kind of topological diagram of the two-way dual redundant ring-like network structure of embodiment；
Fig. 4 is a kind of topological diagram of the two-way dual redundant ring-like network structure of embodiment.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of disclosed the embodiment of the present invention in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
The embodiment of the present invention discloses a kind of intelligent substation site looped network test method.Method energy through this embodiment
Enough by test equipment concatenate intelligent substation site looped network, by test equipment test intelligent substation site looped network and its
The communication performance of target device.
Referring to FIG. 1, the test equipment of the present embodiment realizes concatenation looped network, it is configured with processor and industrial personal computer.Wherein
Processor has one group of end communication interface A and the end B and one group of communication interface C-terminal and the end D；Two groups of communication interfaces equally have with several
The target device of two groups of communication interfaces forms two-way dual redundant ring-like network structure.
Processor sends test packet in the looped network of two-way dual redundant ring-like network structure, and receives target in looped network
The returned packet of equipment, and target device is judged according to test packet and returned packet and counts several communicativeness of looped network
Energy.Industrial personal computer couples processor, sends type of message, density and the quantity of test packet in looped network for configuration processor
Deng.
Further, industrial personal computer is coupled with display, can convert graph data for the communication performance of test and scheme
The displaying target equipment of pictureization and the communication performance of looped network.
Fig. 2 and Fig. 3 is please referred to, the test equipment of the present embodiment can be in pairs to dual redundant annular with single target equipment group
Network structure, for testing the communication performance of single target equipment.
Referring to FIG. 4, the test equipment of the present embodiment can be two-way double with two and more than two target devices composition
Redundancy ring-like network structure, for testing the communication performance of several target devices in looped network.
Based on above-mentioned test equipment, when the method for the present embodiment is carried out, following steps are executed.
Test equipment and five target devices are formed two-way dual redundant ring-like network structure by S100.
S200 tests a certain communication performance of any looped network in two-way dual redundant ring-like network structure by test equipment.
S210 test equipment, in operating status, tests the online target device quantity and operation of any looped network at looped network
The message content and quantity of online target device in looped network are specially analyzed and counted to state, online in looped network for obtaining
Target device operation information and operating status, then realize the statistics to online target device.
S220 test equipment, in operating status, tests the data throughout of any looped network at looped network, specifically has following
Two ways.
S221 test equipment keeps silent at looped network in operating status, is not injected into test packet, only analyzes and forward
Original message in looped network, and accounting message quantity, for judging and showing by display the data throughout of looped network.
The type of message for the first test packet of selection that S2221 test equipment is configured by industrial personal computer injects preset in looped network
Or the first test packet of the pressure value configured by industrial personal computer.
S2222 test equipment receives corresponding first returned packet of the first test packet returned in looped network.
S2223 test equipment is according to the first returned packet, for judging and showing that the data of looped network gulp down by display
The amount of spitting.
S230 test equipment, in operating status, tests the packet loss of any looped network at looped network.
S231 test equipment at runtime, injects density and quantity preset or configured by industrial personal computer in looped network at looped network
The second test packet.
S232 test equipment receives corresponding second returned packet of the second test packet that looped network returns；
S233 test equipment is according to the second test packet and the packet loss of the second returned packet detection looped network.
S240 test equipment, in operating status, tests the link delay value of any looped network at looped network, specific to test
Equipment tests the node delay value of all target devices in looped network respectively, and counts the chain that all node delay values are looped network
Road delay value.
The present embodiment is preferred, and the present embodiment tests the node delay value of target device in looped network, and specific step is as follows.
S241 test equipment acquires the host address of all target devices in looped network, and is sent respectively according to host address
Corresponding link delay message；
S242 target device responds link delay message, and returns to third returned packet to test equipment；
S243 test equipment obtains node delay value according to link delay message and third returned packet.
The present embodiment is preferred, and original looped network message can be equipment repeating frame, using weight in test packet and looped network
Multi-frame, looped network storm frame, abnormal frame it is one or more.
Wherein equipment repeating frame can be arbitrary equipment in looped network and send, and receive the source address and device address phase of message frame
With, referred to as equipment repeating frame.
Wherein apply repeating frame, while cooling between within, two message frames that arbitrary equipment successively receives in looped network, source
Address is identical and non-equipment repeating frame, and test serial number and application identities are identical, and path identifier is different；In so aforementioned two frame
It is known as applying repeating frame in rear frame.
Wherein looped network storm frame, while cooling between within, two message frames that arbitrary equipment successively receives in looped network, source
Address is identical and non-equipment repeating frame, and test serial number, application identities and path identifier are all the same；In so aforementioned two frame
Frame is known as looped network storm frame afterwards.
Wherein abnormal frame, source path and physical pathway are not inconsistent in looped network, are unsatisfactory for looped network message basic format or not
Message frame with looped network label.
Further, target device is when receiving above-mentioned looped network message or test packet in looped network, in the present embodiment
Following forward rule should be followed:
Wherein equipment repeating frame is simply discarded, and is not required to send application layer, also the next node forwarding not into looped network.
Repeating frame is wherein applied, is not required to send application layer, and next node forwards into looped network by message；
Wherein looped network storm frame directly abandons, is not required to send application layer, also the next node forwarding not into looped network.
When wherein target device receives abnormal frame from looped network, abnormal frame is directly abandoned.
After wherein target device receives message exception and/or interrupts, alarm signal can be sent out to test equipment.
Further, referring to FIG. 2, simulation source device can be concatenated in the looped network of the present embodiment.Source device is simulated to issue
It is above-mentioned it is improper apply frame, the density and quantity for issuing message can equally be set, target device can be by looped network
Exception message is handled according to above-mentioned forwarding and processing rule.
It is merely a preferred embodiment of the present invention, is not intended to restrict the invention, for the technology of this field described in upper
For personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of intelligent substation site looped network test method, which is characterized in that
The described method includes:
Test equipment and at least one target device form two-way dual redundant ring-like network structure；
Any looped network in the two-way dual redundant ring-like network structure or any target device are tested by test equipment
Communication performance.
2. intelligent substation site looped network test method as described in claim 1, which is characterized in that
The looped network communication performance that the target device is tested by the test equipment, is configured as:
The test equipment, in operating status, analyzes the message of online target device in the looped network at the looped network, uses
In the information and state that show the target device.
3. intelligent substation site looped network test method as described in claim 1, which is characterized in that
The communication performance that the looped network is tested by the test equipment, is configured as:
The test equipment keeps silent at the looped network in operating status, and forwards and count the report in the looped network
Text, for judging the data throughout of the looped network.
4. intelligent substation site looped network test method as described in claim 1, which is characterized in that
The communication performance that the looped network is tested by the test equipment, is configured as:
The test equipment at runtime, chooses the type of message of the first test packet and in the looped network at the looped network
Inject first test packet of preset pressure；
The test equipment receives corresponding first returned packet of first test packet that the looped network returns；
The test equipment judges the data throughout of the looped network according to first returned packet.
5. intelligent substation site looped network test method as described in claim 1, which is characterized in that
The communication performance that the looped network is tested by the test equipment, is configured as:
The test equipment at runtime, injects the second test report of pre-set density and quantity in the looped network at the looped network
Text；
The test equipment receives corresponding second returned packet of second test packet that the looped network returns；
The test equipment detects the message packet loss of the looped network according to second test packet and second returned packet
Rate.
6. intelligent substation site looped network test method as claimed in claim 5, which is characterized in that
Second test packet includes at least equipment repeating frame, using repeating frame, looped network storm frame, one kind of abnormal frame or more
Kind.
7. intelligent substation site looped network test method as described in claim 1, which is characterized in that
The communication performance that the looped network is tested by the test equipment, is configured as:
At the looped network at runtime, the node for all target devices tested in the looped network respectively prolongs the test equipment
Duration, and count the link delay value that all node delay values are the looped network.
8. intelligent substation site looped network test method as claimed in claim 7, which is characterized in that
The test equipment tests the node delay value of the target device, is configured as:
The test equipment acquires the host address of all target devices in the looped network, and is distinguished according to the host address
Send corresponding link delay message；
The target device responds the link delay message, and returns to third returned packet to the test equipment；
The test equipment obtains the node delay value according to the link delay message and the third returned packet.
9. a kind of test equipment as described in claim 1, which is characterized in that
The equipment includes processor and industrial personal computer；
The processor is configured with two groups of communication interfaces, and passes through communication interface and at least one described target described in two groups
Equipment forms the two-way dual redundant ring-like network structure and the processor in the two-way dual redundant ring-like network structure
Any looped network send test packet, and receive the returned packet of any target device in the looped network, and
The communication performance of the looped network is judged according to the test packet and the returned packet；
The industrial personal computer is configured as coupling the processor and the industrial personal computer is configured as configuring the processor in institute
State the test packet of looped network transmission.
10. test equipment as claimed in claim 9, which is characterized in that
The industrial personal computer is configured as being coupled with display；
The industrial personal computer is configured as generating graph data according to the communication performance；
The display is configured as showing the graph data.
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| CN201910135529.7A CN109768902A (en) | 2019-02-22 | 2019-02-22 | Intelligent substation site looped network test method and test equipment |
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| CN201910135529.7A CN109768902A (en) | 2019-02-22 | 2019-02-22 | Intelligent substation site looped network test method and test equipment |
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| CN112491640A (en) * | 2020-10-16 | 2021-03-12 | 国网浙江省电力有限公司电力科学研究院 | In-situ protection looped network pressure testing method |
| CN114765583A (en) * | 2020-12-30 | 2022-07-19 | 中核控制系统工程有限公司 | Test system and method for security level ring network |
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Application publication date: 20190517 |