CN104601375B - A kind of intelligent substation communication network monitoring system, setting method and monitoring method - Google Patents
A kind of intelligent substation communication network monitoring system, setting method and monitoring method Download PDFInfo
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Abstract
The present invention proposes a kind of intelligent substation communication network monitoring system, setting method and monitoring system, and what system included being connected with each other adjusts region, monitored area and determinating area；Region is adjusted to adjust module, network delay distribution calculation module and network delay including network topological information input module, network traffics distribution calculation module, network traffics and adjust module, network traffics distribution calculation module and network delay distribution calculation module are connected with network topological information input module, network traffics are adjusted module and are connected with network traffics distribution calculation module, and network delay, which adjusts module and adjusts module with network delay distribution calculation module and network traffics respectively, to be connected.Implement intelligent substation communication network monitoring system, setting method and the monitoring system of the present invention, have the advantages that：Recorded message will not be caused to waste, possess on-line monitoring, instant protective capability, fault recovery is very fast, can meet intelligent substation reliability requirement.
Description
Technical field
The present invention relates to network monitoring field, more particularly to a kind of intelligent substation communication network monitoring system, the side of adjusting
Method and monitoring method.
Background technology
Intelligent substation is the important component of power network, is the key of power network safety operation.Sent out in intelligent grid
Open up under background, intelligent substation be using information sharing as basic theory, using Network Transmitting as realization rate, automatically, it is effective,
Reliably, the basic functions such as information gathering, measurement, control and protection are rapidly realized and are automatically controlled advanced with Intelligent adjustment etc.
The transformer station of function.
Equipment connection networking is key character that intelligent substation is different from Generic Substation, and intelligent substation is set
Standby information sharing and the basis of mutual operation.Therefore, build and meet the highly reliable substation communication network of equipment communication demand and be
The basic guarantee that intelligent substation various functions are effectively realized.However, intelligent substation communication network reliability is present at present
Many uncertain factors, be mainly reflected in that exchange delay is uncertain, switching path is uncontrollable and exchange process in it is inevitable
Signal errors, packet loss, bursts of traffic the problems such as, these uncertain factors significantly limit partial higher function should
With, turn into restrict intelligent substation development short slab.
To improve intelligent substation communication network quality, substation operation reliability is improved, on the one hand need to be from the network equipment
The hardware aspects such as research and development, Topological expansion and communication technology upgrading are lifted, and on the other hand then need the change of Erecting and improving
Power station communication network monitoring system, using rational network condition research and flow setting method, controlled from network monitoring and protection
Controlling angle lifts substation communication network performance.
However, unified complete substation communication network monitoring body has not yet been formed in current intelligent substation communication network
System.Most current intelligent substation communication network carries out communication network by the way of communications records and off-line analysis are combined
Monitoring and controlling.Specifically, in intelligent substation communication network access information monitoring device, capture, decoding, storage network report
Text, recorded message is called under line, carry out comprehensive memory of Network Abnormal failure.Intelligent substation communication records and off-line analysis phase
With reference to communication network monitoring mode on the one hand need a large amount of storage device records network informations, and Analysis of Network Malfunction is called
Analysis recorded message only account for the 0.1% of whole recorded messages, cause a large amount of recorded messages to waste, another aspect network service note
Record and off-line analysis are a kind of monitor modes of ex-post analysis, the ability for do not possess on-line monitoring, protecting immediately, fault recovery
Slowly, it is difficult to meet intelligent substation reliability requirement.
The content of the invention
The technical problem to be solved in the present invention is, wastes, does not possess for above-mentioned a large amount of recorded messages of prior art
On-line monitoring, instant protective capability, fault recovery is excessively slow, the defects of being difficult to meet intelligent substation reliability requirement, there is provided one
Recorded message kind will not be caused to waste, possess on-line monitoring, instant protective capability, fault recovery is very fast, can meet intelligent power transformation
Stand intelligent substation communication network monitoring system, setting method and the monitoring method of reliability requirement.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of intelligent substation communication network monitoring
System, including region, monitored area and determinating area are adjusted, the region of adjusting is by learning communication network physical arrangement letter
Breath, all kinds of messages with reference to as defined in IEC61850 are given out a contract for a project rule and network traffics computational methods, the adaptive setting communication network of setting
Network Flow Fault acts threshold value；The monitored area is connected, in real time by each port of all interchangers with the region of adjusting
Message mirror is exchanged to the state of communication network of intelligent transformer station monitoring system, message is parsed and passes parsing content
The determinating area is sent to, each port flow is monitored in real time and gained information is input to the determinating area, the judgement area
Region is adjusted with described and monitored area is connected, carried out for the reasonability by monitoring message sequential and message coding in domain respectively
Preliminary fault verification and by the way that the network measured discharge and network traffics fault actions threshold value are contrasted, to carry out net
Positioning, control and the recovery of network failure；The region of adjusting includes network topological information input module, network traffics distribution calculating
Module, network traffics adjust module, network delay distribution calculation module and network delay and adjust module, the network traffics distribution
Computing module and network delay distribution calculation module are connected with the network topological information input module, and the network traffics are whole
Cover half block is connected with the network traffics distribution calculation module, and the network delay is adjusted module and divided respectively with the network delay
Cloth computing module is adjusted module with network traffics and connected.
In intelligent substation communication network monitoring system of the present invention, the monitored area includes network message mirror
As module, flow delay statistical module and packet parsing module, the network message mirror module is used in real time by all exchanges
Each port of machine exchanges message mirror to the intelligent substation communication network monitoring system, the flow delay statistical module and institute
State the connection of network message mirror module, for being counted in real time to the flow and message delay of communication network device port, institute
Packet parsing module is stated to be connected with the flow delay statistical module, for parsing message and being sent to parsing content
The determinating area.
In intelligent substation communication network monitoring system of the present invention, the determinating area includes message reasonability
Determination module, network condition determination module and protection control module, the message reasonability determination module and the packet parsing
Module connects, for carrying out message reasonableness check by monitoring message sequential and message coding according to the parsing content；Institute
Network condition determination module is stated to adjust with the flow delay statistical module, message reasonability determination module and network delay respectively
Module connects, for judging network condition；It is described protection control module respectively with the message reasonability determination module
Connected with network condition determination module, for carrying out protection control in communication network status exception.
In intelligent substation communication network monitoring system of the present invention, it is described parsing content include message APPID,
State StNum and sequence number SqNum.
The invention further relates to a kind of intelligent substation communication networked tuning method, comprise the following steps：
A physical connection matrix, VLAN Matrix dividings, PVID Matrix dividings and information source node matrix equation) are initialized；
B logic connection matrix) is established；
C the 0th information source node matrix equation) is established；
D) set intermediate variable k and assign initial value k=1；
E 3k-2 information source node matrix equations) are established, perform step F) or/and step F ＇)；
F) flow is adjusted into network traffics failure；
F ＇) enter intelligent substation network delay distribution calculation process.
In intelligent substation communication networked tuning method of the present invention, the step F) further comprise：
F1 3k-1 information source node matrix equations) are established；
F2) by element zero setting related to device port in the 3k-1 information source node matrix equations, 3k information is obtained
Source node matrix；
F3) judge whether there is nonzero element in the 3k information source node matrix equations, in this way, make k=k+1, return to step
E)；Otherwise, step F4 is performed)；
F4 n=k) is made, and by the 0th information source node matrix equation, 3k-2 information sources node matrix equation and the 3k-1 information
Source node matrix obtains message distribution matrix；
F5 communication network traffic distribution matrix) is obtained by message packet sending speed matrix and the message distribution matrix；
F6 network traffics fault actions threshold value) is obtained by the communication network traffic distribution matrix；The network traffics event
Barrier action threshold value includes maximum stream flow distribution matrix and minimum discharge distribution matrix.
In intelligent substation communication networked tuning method of the present invention, the step F ＇) further comprise：
F1 ＇) obtain the element represented in 3k-2 information source node matrix equations when information flow j passes through switching port i；
F2 ＇) obtain the element represented in 3k-2 transmission curve matrixes when information flow j passes through switching port i；
F3 ＇) by 3k-2 transmission curve matrixes and physical connection matrix acquirement 3k-1 information source node matrix equations；
F4 ＇) if i ports are destination interfaces, information flow j will be represented by handing in the 3k-1 information source node matrix equations
The element zero setting during i of port is changed, obtains 3k information source node matrix equations；
F5 ＇) judge to whether there is neutral element in the 3k information source node matrix equations, in this way, make k=k+1, return to step
E)；Otherwise, step F6 ＇ are performed)；
F6 ＇) n=k is made, obtain message distribution matrix；
F7 ＇) by 3k-2 information sources node matrix equation acquirement arrival curve matrix, clothes are obtained by 3k-2 service curves matrix
Business curve matrix；
F8 ＇) 3k-2 service curves matrixes in the service curves matrix are obtained, obtain the 3k-2 service curves
Element when information flow j passes through switching port i is represented in matrix, obtains the 3k-2 arrival curve squares in arrival curve matrix
Battle array, the element represented in the 3k-2 arrival curves matrix when information flow j passes through switching port i is obtained, obtains intelligent substation
The maximum delay that interchanger transmits in communication network.
The invention further relates to a kind of intelligent substation communication method for monitoring network, comprise the following steps：
A 〞) initialization intelligent substation communication network monitoring system；
B 〞) input communication network topology information and exchange message information；
C 〞) adjusted using the network information matrix progress network traffics failure of acquisition；
D 〞) the real-time distributed Monitoring Data of network inputted into determinating area, judge to input by message reasonability determination module
Message whether there is abnormal conditions, in this way, will appear from abnormal result of determination and be input to protection control module, perform step
F〞)；Otherwise, network condition judgement is carried out, performs step E 〞)；
E 〞) examine whether network traffics and message time delay meet stable operation requirement, in this way, perform step F 〞)；Otherwise,
Judge to break down and fault message is input to the protection control module, perform step F 〞)；
F 〞) the Network Abnormal information inputted is corresponded to, carry out output protection control according to the communication network Preservation tactics of setting
Signal；
G 〞) judge whether network topology and message information change, in this way, return to step B 〞)；Otherwise, return to step D 〞).
In intelligent substation communication method for monitoring network of the present invention, the step A 〞) further comprise：
A1 〞) intelligent substation communication network monitoring system is arranged in a communication network；
A2 〞) each port message of each interchanger accessed into the intelligent substation communication network monitoring system through mirror port；
A3 〞) message correctness decision model is defined, complete system initialization work.
Implement intelligent substation communication network monitoring system, setting method and the monitoring method of the present invention, have with following
Beneficial effect:Due to by the way of monitoring on-line, control immediately, being combined that it changes original monitoring record and off-line analysis
Failure analysis methods, efficiently solve recorded message waste and fault recovery it is excessively slow the shortcomings that.In addition, intelligent substation communication net
The Flow Fault of network setting method real-time monitoring system and delay are distributed, and are calculated by network physical information integration, precisely prediction
Network traffics and delay are distributed, and then calculate the section for obtaining communication network traffic and the normal operation that is delayed, so it will not make
Wasted into recorded message, possess on-line monitoring, instant protective capability, fault recovery is very fast, can meet intelligent substation reliability
It is required that.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is in intelligent substation communication network monitoring system of the present invention, setting method and monitoring method one embodiment
The structural representation of intelligent substation communication network monitoring system；
Fig. 2 is the flow chart of intelligent substation communication networked tuning method in the embodiment；
Fig. 3 is to enter the particular flow sheet that network traffics failure adjusts flow in the embodiment；
Fig. 4 is to enter the particular flow sheet that intelligent substation network delay is distributed calculation process in the embodiment；
Fig. 5 is the flow chart of intelligent substation communication method for monitoring network in the embodiment；
Fig. 6 is the particular flow sheet that intelligent substation communication network monitoring system is initialized in the embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In intelligent substation communication network monitoring system of the present invention, setting method and monitoring method embodiment, its intelligence
The structural representation of substation communication network monitoring system is as shown in Figure 1.In Fig. 1, the intelligent substation communication network monitoring system
System includes adjusting region 1, monitored area 2 and determinating area 3, wherein, adjust region 1 and believed by learning communication network physical arrangement
Breath, all kinds of messages with reference to as defined in IEC61850 are given out a contract for a project rule and network traffics computational methods, the adaptive setting communication network of setting
Network Flow Fault acts threshold value；Monitored area 2 connects with adjusting region 1, for each port of all interchangers to be exchanged into report in real time
Literary mirror image is parsed to message to state of communication network of intelligent transformer station monitoring system and parsing content is sent into judgement area
Domain 3, monitor each port flow in real time and gained information be input to determinating area 3, determinating area 3 respectively with adjust region 1 and
Monitored area 2 connects, for by monitor the reasonability of message sequential and message coding carry out preliminary fault verification and pass through by
Network measured discharge and network traffics fault actions threshold value are contrasted, with carry out the positioning of effective network failure, control and
Recover.
It is whole including network topological information input module 11, network traffics distribution calculation module 12, network traffics to adjust region 1
Cover half block 13, network delay distribution calculation module 14 and network delay adjust module 15, wherein, network traffics distribution calculation module
12 and network delay distribution calculation module 14 be connected with network topological information input module 11, network traffics adjust module 13 with
Network traffics distribution calculation module 12 connects, network delay adjust module 15 respectively with network delay distribution calculation module 14 and net
Network flow is adjusted module 13 and connected.Adjust region 1 and communication network physical arrangement is learnt by network topological information input module 11
Information.Because by the way of monitoring on-line, control immediately, that it changes the event that original monitoring record and off-line analysis are combined
Hinder analysis method, efficiently solve recorded message and waste and the shortcomings that fault recovery is excessively slow, while recorded message will not be caused unrestrained
Take.
In the present embodiment, monitored area 2 includes network message mirror module 21, flow delay statistical module 22 and message solution
Module 23 is analysed, wherein, network message mirror module 21 is used to each port of all interchangers is exchanged into message mirror to intelligence in real time
Substation communication network monitoring system, flow delay statistical module 22 are connected with network message mirror module 21, for right in real time
The flow and message delay of communication network device port are counted, and gained information is input into determinating area 3, packet parsing
Module 23 is connected with flow delay statistical module 22, for being parsed to message and obtained parsing content being sent into judgement
Region 3.Above-mentioned parsing content includes message APPID, state StNum and sequence number SqNum.
In the present embodiment, determinating area 3 includes message reasonability determination module 31, network condition determination module 32 and protection
Control module 33, wherein, message reasonability determination module 31 is connected with packet parsing module 23, for according to above-mentioned parsing content
Message reasonableness check is carried out by monitoring message sequential and message coding, preliminary fault verification can be carried out；Network condition is sentenced
Cover half block 32 is adjusted module 15 with flow delay statistical module 22, message reasonability determination module 31 and network delay respectively and connected
Connect, for judging network condition；Protect control module 33 respectively with message reasonability determination module 31 and network condition
Determination module 32 connects, for carrying out protection control in communication network status exception.
The present embodiment further relates to a kind of intelligent substation communication networked tuning method, and its flow chart is as shown in Figure 2.In Fig. 2,
The intelligent substation communication networked tuning method comprises the following steps：
Step S01 initialization physical connections matrix, VLAN Matrix dividings, PVID Matrix dividings and information source node matrix equation：
To obtain network traffics and delay distribution and failure setting valve, it is necessary to be adjusted to intelligent substation communication network monitoring system
Region 1 inputs collection communication network and exchanges the essential informations such as message, establishes physical connection matrix Pp×p, VLAN Matrix dividings
Vk×p, PVID Matrix dividings Tk×pWith logic connection matrix Dp×pEqual matrix describes network physical feature.In this step, initialization
Physical connection matrix Pp×p, VLAN Matrix dividings Vk×p, PVID Matrix dividings Tk×pWith information source node matrix equation Sp×d。
Step S02 establishes logic connection matrix：In this step, logic connection matrix D is establishedp×p。
Step S03 establishes the 0th information source node matrix equation：In this step, the 0th information source node matrix equation S is established0 p×d, specifically
It is that calculating S is carried out according to formula (1)0 p×d's：
S0 p×d=-(Pp×p×Sp×d) (1)
In formula (1), physical connection matrix Pp×pPremultiplication information source node matrix equation Sp×dRepresent that source is led to switch ports themselves
Cross physical medium to be joined directly together, symbol "-" represents the change of change of direction.
Step S04 sets intermediate variable k and assigns initial value k=1：In this step, set intermediate variable k and assign initial value k=1.
Step S05 establishes 3k-2 information source node matrix equations：In this step, 3k-2 information source node matrix equations S is established3k -2 p×d, S is specifically calculated according to formula (2)3k-2 p×d's：
S3k-2 p×d=-(Dp×p×S3(k-1) p×d) (2)
In formula (2), logic connection matrix Dp×pPremultiplication the 3rd (k-1) information source node matrix equation S3(k-1) p×dExpression passes through friendship
Change planes and carry out message forwarding.This step has been performed, has performed step S06 or/and step S06 ＇.
Step S06 adjusts flow into network traffics failure：In this step, flow is adjusted into network traffics failure.
Step S06 ＇ enter intelligent substation network delay distribution calculation process：In this step, into intelligent substation net
Network delay distribution calculation process.It is noted that in the present embodiment, above-mentioned steps S06 and step S06 ＇ execution are that do not have
Sequencing, that is, step S06 can be first carried out and perform step S06 ＇ again, or first carry out step S06 ＇ and perform step again
S06, or step S06 and step S06 ＇ are performed simultaneously.The intelligent substation communication networked tuning method energy real-time monitoring system
Flow Fault and delay be distributed, calculated by network physical information integration, precisely predict network traffics and delay be distributed, and then
Calculate the section for obtaining communication network traffic and the normal operation that is delayed.So it possesses on-line monitoring, instant protective capability, failure
Recover very fast, intelligent substation reliability requirement can be met.
For the present embodiment, above-mentioned steps S06 can also be refined further, and the flow chart after it is refined is as shown in Figure 3.
In Fig. 3, above-mentioned steps S06 further comprises：
Step S61 establishes 3k-1 information source node matrix equations：In this step, 3k-1 information source node matrix equations S is established3k -1 p×d, S is specifically calculated according to formula (3)3k-1 p×d's：
S3k-1 p×d=-(Pp×p×S3k-2 p×d) (3)
In formula (3), S3k-2 p×dRepresent 3k-2 information source node matrix equations.
Element zero setting related to device port in 3k-1 information source node matrix equations is obtained 3k information by step S62
Source node matrix：In this step, by 3k-1 information source node matrix equations S3k-1 p×dIn the element zero setting related to device port, obtain
Obtain 3k information source node matrix equations S3k p×d, in other words, when message reaches destination interface, message is no longer forwarded, corresponding
S3k-1 p×dIn s3k-1 ijZero setting is needed to obtain new matrix S3k p×d。
Step S63 judges whether there is nonzero element in 3k information source node matrix equations：In this step, 3k information sources are judged
Node matrix equation S3k p×dIn whether have nonzero element, be exactly continuous to examine 3k information source node matrix equations S in fact3k p×dIn whether have
Non-zero entry usually ensures that all messages reach destination interfaces, if it is determined that result be yes, then execution step S64；Otherwise, perform
Step S65.
Step S64 makes k=k+1：If above-mentioned steps S63 judged result is yes, this step is performed.In this step,
Make k=k+1.This step, return to step S05 are performed.
Step S65 makes n=k, and by the 0th information source node matrix equation, 3k-2 information sources node matrix equation and 3k-1 information
Source node matrix obtains message distribution matrix：If above-mentioned steps S63 judged result is no, this step is performed.This step
In, n=k is made, and by the 0th information source node matrix equation S0 p×d, 3k-2 information source node matrix equations S3k-2 p×dWith 3k-1 information sources
Node matrix equation S3k-1 p×dObtain message distribution matrix SL p×d, particularly as be when all messages reach switching port when, using formula
(4) substation communication network message distribution matrix S is obtainedL p×d's：
Step S66 obtains communication network traffic distribution matrix by message packet sending speed matrix and message distribution matrix：This step
In rapid, by message packet sending speed matrix Ud×1With message distribution matrix SL p×dCalculate and obtain communication network traffic distribution matrix Np×1,
Communication network traffic distribution matrix N is specifically calculated according to formula (5)p×1's：
Np×1=SL p×d×Ud×1 (5)
Communication network traffic distribution matrix Np×1The form of middle element is all Ai+ (﹣ Bi), AiRepresent that port i transmitted traffics are born
Carry, BiRepresent that port i reaches flow load.
Step S67 obtains network traffics fault actions threshold value by communication network traffic distribution matrix：In this step, by communicating
Network traffics distribution matrix Np×1Network traffics fault actions threshold value is obtained, the network traffics fault actions threshold value includes max-flow
Measure distribution matrix and minimum discharge distribution matrix.Particularly as being with communication network traffic distribution matrix Np×1Based on, according to formula
(6) and formula (7) obtains network failure flow threshold, K' in formularelAnd K "relFor coefficient of reliability, K'relMore than 1, K "relIt is small
In 1, its value is adjusted by communication network QoS and reliability requirement.In formula (6), EHp×1Maximum stream flow distribution matrix is represented,
ELp×1Represent minimum discharge distribution matrix.
EHP×1=K'rel×NP×1 (6)
ELP×1=K "rel×NP×1 (7)
Flow Fault monitoring network integral status can be protected from macroscopic aspect, can effectively avoid network storm and
Situations such as message fault burst.
Because Flow Fault monitoring can not carry out the protection control that becomes more meticulous from microcosmic point to each individual message.But by
All kinds of messages have otherness to delay requirement in transformer station defined in IEC61850, if network can not meet all kinds of reports
The delay requirement of text, then substation operation scheduling will undertake greater risk, and the present invention is in order to solve this problem, when proposing network
Prolong failure setting method, it is performed according to step S06 ＇.
Communication network delay distribution is obtained to be calculated in the Substation Design planning stage, the present invention is theoretical using network calculus
Dynamic calculation communication network time delay distribution, time delay distribution core calculations formula are shown in formula (8)：
In formula, α and β are respectively arrival curve and service curves, and sup and inf are respectively supremum and infimum symbol.
Overstock for description information stream flow and maximum delay also needs to establish service curves model.Communication network of transformer substation at present
Network strictly uses priority queueing and first in first out scheduling strategy (FIFO), and line for service is needed when message reaches port,
Its priority is higher to be lined up that position is more forward, and waiting time is shorter, what the message of level that All factors being equal, preference will be give to then first serviced according to first reaching
Strategy is serviced.
Therefore, it is n (n is limit priority) that can establish priority, and serve port is l-th service curves Sern(t) such as
Shown in formula (9)：
Priority is i (0≤i≤n-1), and serve port is l-th service curves Seri(t) as shown in formula (10)：
Above-mentioned steps S06 ＇ can also be refined further, and the flow chart after it is refined is as shown in Figure 4.In Fig. 4, above-mentioned steps
S06 ＇ further comprise：
Step S61 ＇ obtain the element represented in 3k-2 information source node matrix equations when information flow j passes through switching port i：This
In step, 3k-2 information source node matrix equations S is obtained3k-2 p×dMiddle expression information flow j passes through element during switching port i, specifically
It is exactly by 3k-2 information source node matrix equations S3k-2 p×dMiddle i-th row elements substitute into above-mentioned formula (9) and formula (10) is calculated and obtained
Element s when information flow j passes through switching port i is represented in 3k-2 information source node matrix equations3k-2 ij。
Step S62 ＇ obtain 3k-2 and send the element represented in curve matrix when information flow j passes through switching port i：This step
In rapid, obtain 3k-2 and send curve matrix O3k-2 p×dMiddle expression information flow j passes through element o during switching port i3k-2 ij, specifically
Calculated by formula (11)：
o3k-2 ij=s3k-2 ij⊙k3k-2 ij (11)
In formula (11), k3k-2 ijRepresent 3k-2 service curves matrix Ks3k-2 p×dMiddle expression information flow j passes through switching port
Element during i.
Step S63 ＇ send curve matrix by 3k-2 and physical connection matrix obtains 3k-1 information source node matrix equations：This
In step, curve matrix O is sent by 3k-23k-2 p×dWith physical connection matrix Pp×pObtain 3k-1 information source node matrix equations S3k -1 p×d, specifically calculated by formula (12)：
S3k-1 p×d=-(Pp×p×O3k-2 p×d) (12)
If step S64 ＇ i ports are destination interfaces, information flow j will be represented by handing in 3k-1 information source node matrix equations
The element zero setting during i of port is changed, obtains 3k information source node matrix equations：In this step, if i ports are destination interfaces, by
3k-1 information source node matrix equations S3k-1 p×dMiddle expression information flow j passes through element s during switching port i3k-1 ijZero setting, obtain 3k
Information source node matrix equation S3k p×d。
Step S65 ＇ judge to whether there is neutral element in 3k information source node matrix equations：In this step, 3k information is judged
Source node matrix S3k p×dIn whether there is neutral element, if it is determined that result be yes, then perform step S66 ＇；Otherwise, step is performed
Rapid S67 ＇.
Step S66 ＇ make k=k+1：If above-mentioned steps S65 ＇ judged result is yes, this step is performed.This step
In, make k=k+1.This step, return to step S05 are performed.
Step S67 ＇ make n=k, obtain message distribution matrix：If above-mentioned steps S65 ＇ judged result is no, perform
This step.In this step, message distribution matrix S is obtainedL p×d.This step has been performed, has performed step S68 ＇.
Step S68 ＇ obtain arrival curve matrix by 3k-2 information sources node matrix equation, are taken by 3k-2 service curves matrixes
Obtain service curves matrix：In this step, by 3k-2 information source node matrix equations S3k-2 p×dObtain arrival curve matrix SD p×d, by
3k-2 service curves matrix Ks3k-2 p×dObtain service curves matrix KD p×d.Specifically, cycle criterion 3k information source node square
Battle array S3k p×dIn whether contain nonzero element, as 3k information source node matrix equations S3k p×dIn when being changed into neutral element entirely, use formula
(13) acquired with formula (14) up to curve matrix SD p×dWith service Curve Moment battle array KD p×d, formula (13) and the following institute of formula (14)
Show：
Step S69 ＇ obtain the 3k-2 service curves matrixes in service curves matrix, obtain 3k-2 service curves matrixes
Middle expression information flow j passes through element during switching port i, obtains the 3k-2 arrival curve matrixes in arrival curve matrix, takes
Element when expression information flow j in 3k-2 arrival curve matrixes passes through switching port i is obtained, is obtained in intelligent substation communication network
The maximum delay of interchanger transmission：In this step, service curves matrix K is obtainedD p×dIn 3k-2 service curves matrix Ks3k -2 p×d, obtain 3k-2 service curves matrix Ks3k-2 p×dMiddle expression information flow j passes through element k during switching port i3k-2 ij, obtain
Arrival curve matrix SD p×dIn 3k-2 arrival curve matrixes S3k-2 p×d, obtain 3k-2 arrival curve matrixes S3k-2 p×dMiddle expression
Information flow j passes through element s during switching port i3k-2 ij, obtain the maximum that interchanger transmits in intelligent substation communication network and prolong
When.
Specifically, by arrival curve matrix SD p×dWith service Curve Moment battle array KD p×dMiddle corresponding element brings network calculus method into
Delay calculation formula (8) in, obtain substation communication network delay distribution matrix Yp×d.With message distribution matrix Yp×dFor base
Plinth, introduce coefficient of reliability K'dAnd K "d, according to formula (15) and formula (16) difference calculating network normal operation coboundary matrix
DHp×dWith network normal operation lower boundary matrix D Lp×d。
DHP×d=K'd×YP×d (15)
DLP×d=K "d×YP×d (16)
In formula (15) and formula (16), K'dFor the value more than 1, K "dFor the value less than 1, K'dAnd K "dConcrete numerical value needs
To be determined according to network QoS and reliability requirement.The network failure setting method computational intelligence substation communication network message exists
Each switch ports themselves time delay exception or fault threshold, monitoring system carry out Reasonable Protection control to exception and failure situation, can had
Effect avoids the bursts of traffic or message dropping situation of independent or several messages.
The present embodiment further relates to a kind of intelligent substation communication method for monitoring network, and its flow chart is as shown in Figure 5.In Fig. 5,
The intelligent substation communication method for monitoring network comprises the following steps：
Step S01 〞 initialize intelligent substation communication network monitoring system：In this step, initialization intelligent substation leads to
Communication network monitoring system, on how specifically to be initialized, subsequently it will be described in detail.
Step S02 〞 input communication network topology information and exchange message information：In this step, communication network topology is inputted
Information and exchange message information.It is noted that to adjust each node failure flow information of communication network, it is necessary to establish effectively
Description communication network physical message mathematical modeling, the present invention by establishing physical connection matrix, VLAN Matrix dividings and patrolling
Collect the directviewing description network node informations such as connection matrix.
Step S03 〞 carry out network traffics failure using the network information matrix of acquisition and adjusted：In this step, acquisition is used
Network information matrix carry out network traffics failure adjust, specifically using disparate networks information and message information matrix computations
Network traffics distribution matrix is obtained, failure flow setting valve is calculated followed by correlation formula.
The real-time distributed Monitoring Data of network is inputted determinating area by step S04 〞, is judged by message reasonability determination module
The message of input whether there is abnormal conditions：In this step, the real-time distributed Monitoring Data of network is inputted into determinating area, by reporting
Literary reasonability determination module judges the message of input with the presence or absence of abnormal conditions such as message coding mistake, timing errors, if sentenced
Disconnected result is yes, then performs step S05 〞；Otherwise, step S06 〞 are performed.
Step S05 〞 will appear from abnormal result of determination and be input to protection control module：If above-mentioned steps S04 〞 judgement
As a result it is yes, then performs this step.In this step, it will appear from abnormal result of determination and be input to protection control module.Perform
This step, perform step S09 〞.
Step S06 〞 carry out network condition judgement：If above-mentioned steps S04 〞 judged result is no, this step is performed.
In this step, network condition judgement is carried out.
Step S07 〞 examine whether network traffics and message time delay meet stable operation requirement：In this step, network is examined
Whether flow and message time delay meet stable operation requirement, if it is determined that result be yes, then perform step S09 〞；Otherwise, hold
Row step S08 〞.
Step S08 〞 judge to break down and fault message are input into protection control module：If above-mentioned steps S07 〞's
Judged result is no, then performs this step.In this step, judge to break down and fault message is input to protection control mould
Block.This step has been performed, has performed step S09 〞.
The Network Abnormal information of the corresponding inputs of step S09 〞, output protection is carried out according to the communication network Preservation tactics of setting
Control signal：In this step, the Network Abnormal information of corresponding input, output guarantor is carried out according to setting or corresponding Preservation tactics
Protect control signal.This step has been performed, has performed step S10 〞.
Step S10 〞 judge whether network topology and message information change：In this step, network topology and message letter are judged
Breath whether change, if it is determined that result be yes, then return to step S02 〞 re-enter network topology and message information；Otherwise,
Return to step S04 〞 Input Monitor Connector data.Because by the way of monitoring on-line, control immediately, that it changes original monitoring record
The failure analysis methods being combined with off-line analysis, efficiently solve recorded message waste and fault recovery it is excessively slow the shortcomings that, together
Shi Buhui causes recorded message to waste.
For the present embodiment, above-mentioned steps S01 〞 can also be refined further, its flow chart such as Fig. 6 institute after refining
Show.In Fig. 6, above-mentioned steps S01 〞 further comprise：
Step S11 〞 arrange intelligent substation communication network monitoring system in a communication network：In this step, in communication network
Intelligent substation communication network monitoring system is arranged in network.
Each port message of each interchanger is accessed the intelligent substation communication network monitoring by step S12 〞 through mirror port
System：In this step, each port message of each interchanger is accessed into the intelligent substation communication network monitoring system through mirror port
System.
Step S13 〞 define message correctness decision model, complete system initialization work：In this step, message is being defined just
True sex determination model, complete system initialization work.
In a word, in the present embodiment, a kind of intelligent substation communication network monitoring system, setting method and monitoring side are proposed
Method, phase is adjusted using network service record and on-line analysis phase separation, the control of distributed node message accounting and centralized flow
With reference to mode, planned network node flow and delayed setting algorithm establish intelligent substation communication network on-line monitoring method,
Protection purpose is controlled immediately to reach communication network.This on-line monitoring, the mode controlled immediately change original monitoring note
Record, the failure analysis methods that are combined of off-line analysis, efficiently solve recorded message and waste and the shortcomings that fault recovery is excessively slow.This
Outside, the setting algorithm of monitoring system Flow Fault and packet network delay proposed by the present invention, passes through network physical information integration
Calculate, precisely predict that network traffics and delay are distributed, and then calculate and obtain communication network traffic and delay normal operation section.This
Outside, this monitoring system flow and delay fault threshold value setting method are not only in intelligent substation communication network protection control field
It has been applied that, also bring inspiration to the design of intelligent substation communication network QoS and network optimization field.Intelligence proposed by the present invention
Substation communication network monitoring system is using monitoring with control is separated, distributed observing and controlling adjusts the side being combined with centralization
Formula, to all kinds of message characteristics of IEC61850 and demand and from two aspects of message aspect and macroscopic flux, establish multi-angle
Intelligent substation communication network monitoring system.
Monitoring is proposed in intelligent substation communication network monitoring system, adjusts and judges that three parts are separate, failure is whole
Cover half type and decision model have flexible, reliable and instant etc. advantage according to the design philosophy of network demand dynamic change.
Intelligent substation communication network monitoring system combination test serial number, message status, message time delay and a variety of objects of network traffics are ground
Study carefully and parameter tuning, establish multi-level, multi-angle, comprehensive decision model and protection Controlling model.It is proposed by the present invention
Intelligent substation communication network monitoring system will be monitored, adjusted, controlling three parts to be separated, and failure is adjusted with network physical situation
Change dynamic change, the design concept of on-line monitoring can carry out Fault Control in time, ensure electric substation automation system safety
Stable operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (1)
- A kind of 1. intelligent substation communication networked tuning method, it is characterised in that comprise the following steps：A physical connection matrix, VLAN Matrix dividings, PVID Matrix dividings and information source node matrix equation) are initialized；B logic connection matrix) is established；C the 0th information source node matrix equation) is established；D) set intermediate variable k and assign initial value k=1；The k is >=1 integer；E 3k-2 information source node matrix equations) are established, perform step F) or/and step F ＇)；F) flow is adjusted into network traffics failure；F ＇) enter intelligent substation network delay distribution calculation process；The step F) further comprise：F1 3k-1 information source node matrix equations) are established；F2) by element zero setting related to device port in the 3k-1 information source node matrix equations, 3k information source sections are obtained Dot matrix；F3) judge whether have nonzero element, in this way, make k=k+1, return to step E in the 3k information source node matrix equations)；It is no Then, step F4 is performed)；F4 n=k) is made, and by the 0th information source node matrix equation, 3k-2 information sources node matrix equation and the 3k-1 information source sections Dot matrix obtains message distribution matrix；The n is >=1 integer；F5 communication network traffic distribution matrix) is obtained by message packet sending speed matrix and the message distribution matrix；F6 network traffics fault actions threshold value) is obtained by the communication network traffic distribution matrix；The network traffics failure is moved Making threshold value includes maximum stream flow distribution matrix and minimum discharge distribution matrix；The step F ＇) further comprise：F1 ＇) obtain the element represented in 3k-2 information source node matrix equations when information flow j passes through switching port i；Described j, i are equal For >=1 integer；F2 ＇) obtain the element represented in 3k-2 transmission curve matrixes when information flow j passes through switching port i；F3 ＇) by 3k-2 transmission curve matrixes and physical connection matrix acquirement 3k-1 information source node matrix equations；F4 ＇) if i ports are destination interfaces, it will represent that information flow j passes through exchange end in the 3k-1 information source node matrix equations Element zero setting during mouth i, obtains 3k information source node matrix equations；F5 ＇) judge to whether there is neutral element in the 3k information source node matrix equations, in this way, make k=k+1, return to step E)； Otherwise, step F6 ＇ are performed)；F6 ＇) n=k is made, obtain message distribution matrix；F7 ＇) by 3k-2 information sources node matrix equation acquirement arrival curve matrix, it is bent that service is obtained by 3k-2 service curves matrix Wire matrix；F8 ＇) 3k-2 service curves matrixes in the service curves matrix are obtained, obtain the 3k-2 service curves matrixes Middle expression information flow j passes through element during switching port i, obtains the 3k-2 arrival curve matrixes in arrival curve matrix, takes Element when expression information flow j in the 3k-2 arrival curves matrix passes through switching port i is obtained, obtains intelligent substation communication net The maximum delay that interchanger transmits in network.
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| CN110311825A (en) * | 2019-08-08 | 2019-10-08 | 河南中烟工业有限责任公司 | A method of quickly disposition communication network failure is recalled by early warning |
| CN110597226A (en) * | 2019-09-17 | 2019-12-20 | 中车青岛四方机车车辆股份有限公司 | Abnormity early warning method and device for vehicle-mounted Ethernet |
| CN111030883B (en) * | 2019-11-22 | 2020-10-23 | 广东工业大学 | Power information transmission delay analysis method, device, equipment and storage medium |
| CN113890842B (en) * | 2021-09-27 | 2023-05-09 | 国网经济技术研究院有限公司 | Information transmission delay upper bound calculation method, system, equipment and storage medium |
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| CN114336962A (en) * | 2021-12-14 | 2022-04-12 | 江苏未来智慧信息科技有限公司 | Monitoring system and monitoring method for working condition of power plant |
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