CN108683578A - Test method and test system are interrogated by a kind of site device ring Netcom - Google Patents
Test method and test system are interrogated by a kind of site device ring Netcom Download PDFInfo
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- CN108683578A CN108683578A CN201810339969.XA CN201810339969A CN108683578A CN 108683578 A CN108683578 A CN 108683578A CN 201810339969 A CN201810339969 A CN 201810339969A CN 108683578 A CN108683578 A CN 108683578A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
Abstract
The present invention provides a kind of site device ring Netcom news test method and test system, and test method includes the following steps：Test data is injected into the looped network of site device to be measured；The message that each handset is sent out in site device to be measured, the message sent out according to each handset and the test data injected into looped network are detected, judges whether the communication of each handset exception occurs.Technical solution provided by the present invention, injects test data into the looped network of site device to be measured first, and analysis is identified to the data received in each handset, if it is possible to the data of mistake be identified and be abandoned, then can determine whether normal for the communication function of each handset；Other handsets are forwarded the data to if there is handset cannot recognize that the data of mistake, then it is abnormal to can determine whether that the communication function for the handset occurs, to realize the test to site device ring net ability to communicate, ensures the reliability of relay protection device communication.
Description
Technical field
The invention belongs to in-situ protection device reliability technical field of measurement and test, and in particular to a kind of site device ring Netcom
Interrogate test method and test system.
Background technology
With the development of science and technology, the monitoring control of intelligent substation is more and more intelligent, is set in intelligent substation
The combining unit and intelligent terminal set are also more and more, while the extensive application of combining unit and intelligent terminal also increases intelligence
Substation's monitoring circuit and control loop complexity, in some instances it may even be possible to reduce the quick-action and reliability of relay protection system.
And with the increase year by year of substation's quantity and increasing for secondary equipment of intelligent converting station quantity, equipment connects
The diversification of mouth makes equipment installation and O＆M difficulty in intelligent substation increase, needs to put into a large amount of human resources.
In order to ensure intelligent substation reliability of operation, need that relay protection device is arranged at intelligent substation, after
Electric protection equipment has two kinds of set-up modes of centralized arrangement and site.Since the arrangement of concentration needs to build dedicated open air
Cabinet and relay protection chamber, and in order to ensure the normal operation of outdoor cabinet and relay protection chamber, need using a large amount of air-conditionings, fan
Equal heat-exchange apparatus make the temperature of outdoor cabinet and relay protection chamber keep constant, and so system cost and energy consumption will be caused all to compare
Higher problem.But these problems are not present in the mode of site setting, and can subtract relative to the mode of centralized arrangement
Few intermediate link, realizes the fast and reliable action of relay protection.
The mode of site setting needs that multiple handsets are arranged, and is communicated and is connected by looped network between each handset, structure is shown
It is intended to as shown in Figure 1, setting including four handsets, respectively handset 1, handset 2, handset 3 and handset 4；It is arranged in each handset
There are two CPU, respectively corresponding CPU1 and CPU2；The CPU1 of wherein each handset communicates connection successively, forms communication inner ring；Respectively
The CPU2 of handset communicates connection successively, forms traffic outer loop, each handset after a upper handset receives data and is identified,
Next handset is forwarded the data to again.
Since in the mode of relay protection device site setting, each handset needs not only to enough reception data, it is also necessary to
Data can be identified and are forwarded, therefore, for relay protection device reliability of operation, needs the communication to looped network
It can be tested.But there are no the test methods for looped network communication performance in currently available technology.
Invention content
The present invention provides a kind of site device ring Netcom news test method and test system, for site device
Looped network communication is tested, and ensures the reliability of the relay protection device communication of site setting.
To achieve the above object, technical solution provided by the invention is：
Test method is interrogated by a kind of site device ring Netcom, includes the following steps：
Test data is injected into the looped network of site device to be measured；
Detect the message that each handset is sent out in site device to be measured, the message sent out according to each handset and to looped network
The test data of middle injection, judges whether the communication of each handset exception occurs.
Technical solution provided by the present invention injects test data, each son into the looped network of site device to be measured first
Analysis is identified to the data received in machine, if it is possible to the data of mistake be identified and be abandoned, then can determine whether as each handset
Communication function it is normal；Other handsets are forwarded the data to if there is handset cannot recognize that the data of mistake, then can determine whether
There is abnormal, the test to realization to site device ring net ability to communicate for the communication function of the handset, ensures that relay is protected
Protect the reliability of device talk.
It is further improved as to test data, the test data includes abnormal flow data, abnormal analogue data
With exceptional communication data.
It is further improved as to each handset test, further includes each handset relay protection in test site device to be measured
The whether normal step of function：
Analog quantity and controlled quentity controlled variable are sent to each handset；
The relay protection action for detecting each handset, according to the guarantor of the analog quantity and controlled quentity controlled variable and each handset sent to each handset
Correspondence between shield action, judges whether the relay protection of each handset is normal.
It is further improved as to site device ring to be measured Netcom news, further includes to site device looped network to be measured
Communication data is detected, and judges whether the looped network of site device to be measured the step of communication abnormality occurs；
The communication data of the site device looped network to be measured is that each handset is handed over protection private network in site device to be measured
Mutual data.
It is further limited as to above-mentioned communication abnormality, the communication abnormality includes communicating to occur losing a little to occur with communication
Incorrect order.
A kind of site device ring net communication test system, including intelligent management unit protect private network and network tester；
The intelligent management unit connect with protection private network, and protection private network is equipped with for connecting leading to for each handset in site device to be measured
Communication interface；
The network tester sends to each handset of site device and surveys for being arranged in the looped network of site device
Try data；
The intelligent management unit for detecting the message that each handset is sent out, and the message that is sent out according to each handset and
The test data that network tester is sent into looped network, judges whether the communication of each handset exception occurs.
It is further improved as to test data, the test data includes abnormal flow data, abnormal analogue data
With exceptional communication data.
It is further improved as to each handset test, further includes relay-protection tester, relay-protection tester is equipped with
Interface for connecting each handset in site device to be measured；
The relay-protection tester is used to send analog quantity and controlled quentity controlled variable to each handset；
The intelligent management unit is additionally operable to detect the relay protection action of each handset, and is sent out according to relay-protection tester
Correspondence between the analog quantity and controlled quentity controlled variable that go out and the protection act of each handset, judges whether the relay protection of each handset goes out
It is now abnormal.
It is further improved as to protection private network communication, further includes Network Analyzer, Network Analyzer and the protection
Private network connects, for detecting whether protection private network communication abnormality occurs.
It is further improved as to site device ring to be measured Netcom news, further includes Network Analyzer and network exchange
Machine, the network switch is for being arranged in the looped network of site device to be measured；The Network Analyzer and the network switch
Communication connection, the communication data in site device looped network to be measured is obtained by the network switch, judges it with the presence or absence of communication
It is abnormal；
The communication data of the site device looped network to be measured is that each handset is handed over protection private network in site device to be measured
Mutual data.
It is further limited as to above-mentioned communication abnormality, the communication abnormality includes communicating to occur losing a little to occur with communication
Incorrect order.
Description of the drawings
Fig. 1 is subterranean equipment looped network communication schematic diagram；
Fig. 2 is the schematic diagram that test method is interrogated by site device ring Netcom in embodiment；
Fig. 3 is the communication protocol schematic diagram that subterranean equipment looped network communicates in embodiment；
Structural schematic diagram when Fig. 4 is Network Analyzer test looped network in embodiment.
Specific implementation mode
The present invention provides a kind of site device ring Netcom news test method and test system, for site device
Looped network communication is tested, and ensures the reliability of the relay protection device communication of site setting.
To achieve the above object, technical solution provided by the invention is：
A kind of site device ring net communication test system, including intelligent management unit protect private network and network tester；
The intelligent management unit connect with protection private network, and protection private network is equipped with for connecting leading to for each handset in site device to be measured
Communication interface；
The network tester sends to each handset of site device and surveys for being arranged in the looped network of site device
Try data；
The intelligent management unit for detecting the message that each handset is sent out, and the message that is sent out according to each handset and
The test data that network tester is sent into looped network, judges whether the communication of each handset exception occurs.
Technical scheme of the present invention is described further below in conjunction with the accompanying drawings.
The present embodiment provides a kind of site device ring net communication test systems, for the site to relay protection device
Device carries out communication test, to ensure the reliability of site device ring Netcom news.
The site looped network communication test system that the present embodiment is provided is as shown in Fig. 2, include intelligent management unit, intelligence
Administrative unit is connected by protecting private network to be communicated with each handset in site device to be measured, to the institute in site device to be measured
There is handset to be managed collectively, including issue parameter, monitor the information such as breath of delivering letters in all handsets, query actions report, to upper
Breath of delivering letters carries out classification differentiation；Site device is used cooperatively by special catch net and intelligent management unit and other protection equipment
Protection private network, it is all to include device includes MMS, GOOSE and SV etc. to external information to protection private network data, and all data are equal
It is to carry out networking transmission by double net 100M optical ports, reasonable distribution is carried out to data traffic by the division of VLAN, ensures protection
Private network data stablize transmission；All message datas carry out analysis storage on Network Analyzer monitoring protection private network, including MMS,
GOOSE and SV judges whether the communication of private network occurs losing and a little ensures any if there is corresponding prompting is then made with incorrect order
Data under operating mode can carry out monitoring storage in real time, facilitate case study and investigation.
Network tester is set in looped network, and network tester sends test data it is then detected that site to each handset
The message that each handset is sent out in device, the test that the message and network tester sent out according to each handset is sent into looped network
Data, judge whether the communication of each handset exception occurs.
Communication protocol used by looped network communication as shown in figure 3, destination address is sent generally according to the mode of broadcast,
Uniformly be set as FF.FF.FF.FF.FF.FF, when test by destination address be revised as be not the full FF of standard when, handset should abandon
Incongruent message, without forwarding and not influencing the transmitting-receiving of normal data；The source address of handset should be each height in looped network
The source address of inboard installation actual use reaches mutual acquaintance for identifying device type, mounting means and the equipment identity of itself
Other purpose.
Source address is made of 6 bytes, respectively by looped network mark, mounting means, protection type and device numbering, when test
It is intended to carry out normal and abnormal simulation test for these feature fields, after device receives any one abnormal data frame
The abnormal data should be abandoned, and corresponding warning information is provided for different exceptions.
Looped network class type-word DSR EtherType=0x892F, the type are also the important feature field in looped network agreement, are led to
Abnormal simulation can be carried out to the data of all non-fields automatically by crossing the test case of network tester design, verify site
Correctness of the device to looped network type of process.
PathID fields are made of the LanID of NetID and 1 position of 3 positions, wherein preceding 3 NetID are used to indicate
Different looped networks；The LanID instruction looped networks direction of last position, can be arranged to 0 or 1, network interface (A=0, B=are sent for indicating
1)；The size of link data length LDSU Size calculates, and is counted since looped network type id field, terminates it to frame check
Before；The expression of SequenceNumber test serial numbers adds 1 after often sending a frame data, can be used for data frame losing statistics.
There are mainly two types of Ethertype application frame types, message and management message is respectively applied, using the frame class of message
Type is 0x88BA, and the frame type for managing message is 0x88F7.The data and function of different message transmissions are according to concrete application situation
It is automatic to adapt to.
APPID application identities are made of 2 bytes, and high byte indicates that the protection type of equipment, low byte indicate that equipment is compiled
Number；FTCF message delay corrects domain for indicating data every Forwarding Latency after a device in looped network, and carries out essence
Really label.It is 32 signless integers to be delayed and correct domain, and Bit30 is quality position, and Bit0~23 are delay time, and unit is received for 8
Second, other positions are reserved bit.
When being tested site device ring Netcom news using network tester, network tester is sent to each handset
Test data include abnormal flow data, abnormal analogue data and exceptional communication data, wherein：
Abnormal flow data are the data of 0M to 1000M, by abnormal data by network tester be sent to interior looped network and
In ring network, the data sent out after abnormal flow data are received according to each handset, examine interior looped network and ring network to storm
The correctness of Message processing；
Abnormal data is simulated, includes the abnormal delay exception with data of this special attribute byte of data, is connect when there is handset
When receiving simulation abnormal data, if handset communication is normal, which should be able to identify the simulation abnormal data, and should
It simulates abnormal data to abandon, is no longer transferred to next handset；If the simulation abnormal data is transmitted to it by the handset
Its handset then illustrates that the handset does not identify the abnormal data, i.e. the communication of the handset occurs abnormal；
Communication abnormality data include interruption and the optical power attenuation of data, when there is handset to receive communication abnormality data,
If handset communication is normal, which should be able to identify the data, and the communication abnormality data are abandoned, and no longer be passed
Give next handset；If the handset gives the communication abnormality data forwarding to other handsets, illustrate that the handset does not identify
Go out the abnormal data, i.e. the communication of the handset occurs abnormal.
Relay-protection tester is additionally provided in the present embodiment, relay-protection tester is connect with each handset, for each son
The relay protection function of machine is examined.When the relay protection function to each handset is examined, using relay protection test
Instrument simulates the control device of relay protection, and analog quantity and switching value are sent to each handset, then judge the action of each handset with after
Whether the analog quantity and switching value that electric protection tester is sent to are corresponding；If corresponding, it is judged as the relay protection of handset
Function is normal；The analog quantity and switching value being sent to if there is action and the relay-protection tester of handset be not corresponding, then sentences
Break and exception occurs for the relay protection function of the handset.
Network Analyzer is connect with protection private network, obtains the data of protection private network, and judge to protect according to the data got
The communication of shield private network is with the presence or absence of losing a little or the abnormal conditions of incorrect order.
Network Analyzer judges that the method for protecting the communication of private network whether to occur losing a little is：At interval of setting time acquisition one
The communication data of secondary protection private network can determine whether occur losing a little for communication if wherein once not collecting data.
Network Analyzer judges that the method for protecting the communication of private network incorrect order whether occur is：At interval of setting time acquisition one
Corresponding flag bit is arranged in the communication data of secondary protection private network, the data that acquire every time, when the mark of institute's gathered data twice in succession
When will position is jumped, it is judged as that incorrect order occurs in the communication for protecting private network.
Whether the communication in order to test out interior looped network and ring network occurs losing a little or incorrect order, can be in interior looped network and ring network
Middle setting interchanger receives the data of interior looped network and ring network as shown in figure 4, interchanger is connected with Network Analyzer communication, and
According to the data that get judge in looped network and ring network communication with the presence or absence of losing a little or the abnormal conditions such as incorrect order, judgment method
With judge to protect whether private network occurs losing a little or the method for incorrect order is identical.
Claims (10)
1. test method is interrogated by a kind of site device ring Netcom, which is characterized in that include the following steps：
Test data is injected into the looped network of site device to be measured；
It detects the message that each handset is sent out in site device to be measured, the message sent out according to each handset and is noted into looped network
The test data entered, judges whether the communication of each handset exception occurs.
2. test method is interrogated by a kind of site device ring Netcom according to claim 1, which is characterized in that the test number
According to including abnormal flow data, abnormal analogue data and exceptional communication data.
3. test method is interrogated by a kind of site device ring Netcom according to claim 1, which is characterized in that further include test
The whether normal step of each handset relay protection function in site device to be measured：
Analog quantity and controlled quentity controlled variable are sent to each handset；
The relay protection action of each handset is detected, the protection according to the analog quantity and controlled quentity controlled variable sent to each handset and each handset is dynamic
Correspondence between work judges whether the relay protection of each handset is normal.
4. test method is interrogated by a kind of site device ring Netcom according to claim 1, which is characterized in that further include treating
The communication data for surveying site device looped network is detected, and judges whether the looped network of site device to be measured communication abnormality occurs
Step；
The communication data of the site device looped network to be measured is that each handset is interacted with protection private network in site device to be measured
Data.
5. test method is interrogated by a kind of site device ring Netcom according to claim 4, which is characterized in that the communication is different
Often occur losing a little including communication and incorrect order occurs in communication.
6. a kind of site device ring net communication test system, which is characterized in that including intelligent management unit, protect private network and net
Network tester；The intelligent management unit is connect with protection private network, and protection private network is equipped with for connecting in site device to be measured
The communication interface of each handset；
The network tester sends test number for being arranged in the looped network of site device, to each handset of site device
According to；
The intelligent management unit is for detecting the message that each handset is sent out, and the message and network sent out according to each handset
The test data that tester is sent into looped network, judges whether the communication of each handset exception occurs.
7. a kind of site device ring net communication test system according to claim 6, which is characterized in that the test number
According to including abnormal flow data, abnormal analogue data and exceptional communication data.
8. a kind of site device ring net communication test system according to claim 6, which is characterized in that further include relay
Tester, relay-protection tester is protected to be equipped with the interface for connecting each handset in site device to be measured；
The relay-protection tester is used to send analog quantity and controlled quentity controlled variable to each handset；
The intelligent management unit is additionally operable to detect the relay protection action of each handset, and sent out according to relay-protection tester
It is different to judge whether the relay protection of each handset occurs for correspondence between analog quantity and controlled quentity controlled variable and the protection act of each handset
Often.
9. a kind of site device ring net communication test system according to claim 6, which is characterized in that further include network
Analyzer, Network Analyzer are connect with the protection private network, for detecting whether protection private network communication abnormality occurs.
10. a kind of site device ring net communication test system according to claim 6, which is characterized in that further include net
Network analyzer and the network switch, the network switch is for being arranged in the looped network of site device to be measured；The network
Analyzer is connected with network switch communication, and the communication data in site device looped network to be measured is obtained by the network switch,
Judge that it whether there is communication abnormality；
The communication data of the site device looped network to be measured is that each handset is interacted with protection private network in site device to be measured
Data.
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| CN201810339969.XA CN108683578B (en) | 2018-04-16 | 2018-04-16 | In-place device ring network communication test method and test system |
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| CN109639518A (en) * | 2018-11-08 | 2019-04-16 | 国网湖南省电力有限公司 | Third generation intelligent substation entirety looped network test macro and its application method |
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| CN110095687A (en) * | 2019-05-07 | 2019-08-06 | 国网山东省电力公司枣庄供电公司 | For the intelligent linkage method and system of fault wave recording device and traveling wave ranging device |
| CN110095687B (en) * | 2019-05-07 | 2021-07-13 | 国网山东省电力公司枣庄供电公司 | Intelligent linkage method and system for fault recording device and traveling wave distance measuring device |
| CN110380923A (en) * | 2019-06-11 | 2019-10-25 | 国网浙江省电力有限公司杭州供电公司 | Site element protection looped network test device |
| CN110380923B (en) * | 2019-06-11 | 2021-06-29 | 国网浙江省电力有限公司杭州供电公司 | In-situ component protection ring network testing device |
| CN110557315A (en) * | 2019-09-02 | 2019-12-10 | 积成电子股份有限公司 | Looped network-based data transmission method with in-place protection device having main mode |
| CN110557315B (en) * | 2019-09-02 | 2021-07-23 | 积成电子股份有限公司 | Looped network-based data transmission method with in-place protection device having main mode |
| CN111880134A (en) * | 2020-06-24 | 2020-11-03 | 南方电网科学研究院有限责任公司 | Method and device for testing quality abnormity of electronic transformer measurement system |
| CN111880134B (en) * | 2020-06-24 | 2023-01-03 | 南方电网科学研究院有限责任公司 | Method and device for testing quality abnormity of electronic transformer measurement system |
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