CN103117885A - Intelligent power distribution network terminal abnormal communication automatic detection method based on data encryption standard (DES) principle - Google Patents
Intelligent power distribution network terminal abnormal communication automatic detection method based on data encryption standard (DES) principle Download PDFInfo
- Publication number
- CN103117885A CN103117885A CN2012105242879A CN201210524287A CN103117885A CN 103117885 A CN103117885 A CN 103117885A CN 2012105242879 A CN2012105242879 A CN 2012105242879A CN 201210524287 A CN201210524287 A CN 201210524287A CN 103117885 A CN103117885 A CN 103117885A
- Authority
- CN
- China
- Prior art keywords
- event
- communication
- des
- message
- detection method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention belongs to the technical field of electronic information, and relates to an automatic detection and induction method for intelligent power distribution network terminal device communication system faults. Data encryption standard (DES) principle is adopted for the method, a communication event set E and a system state set X are designed according to a normal communication process, and a state transition function f and a current state happening event set Gamma in a normal process are established. An unknown action in the communication process is considered as a target of detection, a compulsory homing event eta and an unknown message event gamma after a message is not responded are added, connection is established between the an action set and a state set, error nature is further detected under the assistance of the interactive operation actions of an expert, an intact expert data base is formed, and a detection report and an error detail report (refer to abstract drawings for a system structure) can be automatically generated. Due to the method, device actions of different manufacturers can be compared, a obtained expert system can avoid dependence on professionals when intelligent power distribution network construction is performed by each electric power bureau, and can accomplish all work through simple training.
Description
Technical field
The invention belongs to the network communications technology in the application of intelligent distribution network, relate in intelligent power distribution network construction and maintenance process, method of testing and the means of the test of IEC-60870 communication standard.
Background technology
The intelligent power distribution net is the pith of intelligent grid, take rack and equipment as the basis, take electrical power distribution automatization system as core, the comprehensive utilization communication, by integrated with the information of related application system, realize comprehensive monitoring and control to distribution system.
Communication system is to build the basis of intelligent power distribution automated system.Power distribution automation will be by reliable means of communication, the control command of control centre is issued to each actuator or terminal unit, the various information that simultaneously each remote monitoring unit gathered are uploaded to control centre, with the various functions (namely realizing monitoring and control to terminal unit) that realize the intelligent power distribution net.
Process along with intelligent power distribution network construction, the remote communication protocol (IEC 60870-5-101/104) that each terminal equipment manufacturer begins to use in the power transmission network one-level is to the power distribution network expansion, attempts completing monitoring to equipment states such as transformer, switches in the power distribution network one-level.
The use contrast situation of 104 communication protocols on transmission and disttrbution is as shown in the table:
The transmission of electricity telecontrol system is normally by the government investment construction.Because the power transmission network electric pressure is high, website is few, is responsible for so grid company is all given electric equipment vendors with telecontrol equipment and management software usually.The website of power transmission network is few, so the probability that breaks down is little, so more the situation of exchange device is just few.
Electrical power distribution automatization system has the electric equipments such as numerous distribution transformings, user's change, case change, switching station, distribution transformer, on-pole switch, block switch, parallel capacitor, user's electric energy meter and important load, website generally has hundreds and thousands of even up to ten thousand more than, Regional Distribution is wide, kind is many, running status is complicated, natural environment is abominable, and carry out real-time inspection and control to these equipment just needs to install a large amount of RTU, FTU, the terminal equipments such as DTU, TTU.
From foregoing description as can be known, the intelligent distribution network terminal equipment is many, and investment construction and manager more wish to adopt the distribution terminal equipment of a plurality of producers, by having introduced competition, have avoided monopolization, are conducive to the maintenance of equipment; When needs are changed terminal equipment, can carry out the terminal equipment that the high producer of cost performance is selected in competitive bidding equally, thereby reduce the cost of plant maintenance, maintenance, renewal.
The expansion of the application of IEC 60870-5-101/104 from power transmission network to the power distribution network one-level is in recent years along with the continuous propelling of intelligent power distribution network construction occurs.For guaranteeing after switchgear, whole system communication still has reliability, accuracy, in bid and safeguarding in the future, must must guarantee that the communication message of each terminal equipment is accurate, complete function, system parameters can be checked etc., follow 104 communication protocols fully.There is at present the outstanding problem of two aspects:
1. due to the expansion of market capacity, constantly there is enterprise to enter this field, different to the degree of understanding of communication protocol and digestion power, cause existing product to have defective in communication;
2. in each place power administration process of construction, the responsible institution obviously lacks the professional and technical personnel who is familiar with relevant stipulations, is difficult to bear the Detection task to each manufacturer terminal in the short time.
In whole process, but construction investment side need to determine the arrangement of communication protocol, and offers the enterprise that participates in competitive bidding, then to the testing equipment of enterprise.Due to the problem that has above-mentioned two aspects, often delayed operating rate.
Summary of the invention
For increasing work efficiency, the present invention is according to the experience of summing up in intelligent power distribution network construction work, basic demand according to the artificial intelligence system development technique, introduce discrete event system (DES) theory, whole test process is disassembled analysis, in conjunction with software development technique, design a cover and be applicable to the intelligent automatic test macro of IEC60870-5-101/104 communications protocol when intelligent distribution network is used.
System can be according to requirements set content measurement and the entry of investment construction side or operation maintenance side, start the flow process that DES sets, according to different response events, simulation test expert's manually-operated all processes, the Auto-writing test report, and provide test result.Concrete steps are:
1) analyze the flow process (Fig. 1) of normal communication process, form event sets E={e1, e2 ..., en};
2) according to reciprocal process, form statement library L={ l1, l2 ..., lm}, the reciprocal process of ranking in this set is system's normal communication process.A right-on test process l should be arranged in its Kleene closure L*;
3) analyze normal communication state X={x1 in the IEC60870-5-104 communications protocol, x2 ..., xk};
4) according to normal reciprocal process, determine transfer function F;
5) above process consists of the DES G of system=(X, E, f, Γ, x0, an Xm), Γ: X → 2E wherein, and for example under the normal communication state, Γ (Xstoped)={ U form message }.
6) complete normal communication and analyze after, increase pressure playback event η and unknown message event γ after back message using not in event sets E;
7) expand Γ in native system, under each state can the generation event be all event sets, for example under halted state, sends out other message and sees whether the substation can reply;
8) unknown message event/abnormality is set and surveys associate management mechanism: after a) event that does not have being detected in E, unknown event is carried out the feature record, form new events e γ 1, and be associated with abnormality and submit expert's interactive interface to, after the expert provides suggestion, can carry out state and expand; B) errors excepted event is responded, and the statement l that can find out this moment does not belong to Kleene closure L*, is recorded in the abnormality management;
9) after automatically testing process is completed, the process l of this detection is analyzed at Kleene closure L*, automatically generate according to analysis result and detect form and incorrect details form.
Technique effect of the present invention is: along with the end of pilot project, the construction of intelligent distribution network is about to spread overwide areas at home, computer communication is exactly the Additional Specialty configuration of each power administration originally, has the technical staff who understands in depth rare especially to the IEC60870-5-104 communications protocol.Therefore in the urgent need to there being auxiliary system can help through engineering construction.Simultaneously the present invention introduces the communication abnormality that the DES system completed the IEC60870-5-104 communications protocol and finds out, and the job family of the communications protocol such as IEC60870-5-103, IEC61850 is had application value.
Description of drawings
Fig. 1 is the flow chart of the 60870-5-104 normal communication process of institute of the present invention foundation.
Claims (5)
1. intelligent power distribution network termination IEC60870-5-104 communication protocol communication abnormality automatic detection method, comprise the steps:
1) analyze the flow process (Fig. 1) of normal communication process, form event sets E={e
1, e
2 ...,e
n;
2) according to reciprocal process, form statement library L={ l
1, l
2 ...,l
m, the reciprocal process of ranking in this set is normal communication process (the statement l of system
1Event e in E
iParticular combination).A right-on test process l should be positioned at its Kleene closure L
*In;
3) analyze normal communication state X={x in the IEC60870-5-104 communications protocol
1, x
2 ...,x
k;
4) according to normal reciprocal process, determine transfer function F;
5) above process consists of the DES G of system=(X, E, f, Γ, an x
0, X
m), Γ: X → 2 wherein
E, for example under the normal communication state, Γ (Xstoped)={ U form message }.
6) complete normal communication and analyze after, increase pressure playback event η and unknown message event γ after back message using not in event sets E;
7) expand Γ in native system, under each state can the generation event be all event sets, for example under halted state, sends out other message and sees whether the substation can reply;
8) unknown message event/abnormality is set and surveys associate management mechanism: after a) event that does not have being detected in E, unknown event is carried out the feature record, form new events e
γ 1, and be associated with abnormality and submit expert's interactive interface to, after the expert provides suggestion, can carry out state and expand; B) errors excepted event is responded, and the statement l that can find out this moment does not belong to Kleene closure L
*, be recorded in the abnormality management;
9) after automatically testing process is completed, to the process l of this detection at Kleene closure L
*Analyze, automatically generate according to analysis result and detect form and incorrect details form.
2. communication abnormality automatic detection method described according to claim l, it is characterized in that: the DES systematization of described step 1)-5) having completed an artificial operating process is processed, and makes result to carry out automatic discrimination with existing DES theoretical algorithm.
3. communication abnormality automatic detection method described according to claim l, is characterized in that: described step 6) completed: a) replenish without the DES event of the process of response; B) the unknown message unitized management of replying.
4. communication abnormality automatic detection method described according to claim l is characterized in that: the design described step 8) makes the exception message can be by the Kleene closure L in DES
*Computational process is surveyed, and can form new state according to message content.
5. communication abnormality automatic detection method described according to claim l, is characterized in that: described step 9), completed the automatic generation of form, comprised test result form and testing process detail report.These needed the professional to fill in item by item (generally also not providing the miscommunication details) according to manual operation in the past, and this step work makes the operation that originally needs the professional to carry out, and being simplified to the general staff can complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524287.9A CN103117885B (en) | 2012-12-07 | 2012-12-07 | The abnormal automatic detection method of intelligent distribution network terminal called based on DES theory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524287.9A CN103117885B (en) | 2012-12-07 | 2012-12-07 | The abnormal automatic detection method of intelligent distribution network terminal called based on DES theory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103117885A true CN103117885A (en) | 2013-05-22 |
| CN103117885B CN103117885B (en) | 2016-04-13 |
Family
ID=48416163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210524287.9A Expired - Fee Related CN103117885B (en) | 2012-12-07 | 2012-12-07 | The abnormal automatic detection method of intelligent distribution network terminal called based on DES theory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103117885B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281991A (en) * | 2015-09-10 | 2016-01-27 | 东南大学 | Distribution network terminal self-description method based on IEC 60870-5-104 protocol expansion |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201673233U (en) * | 2010-05-26 | 2010-12-15 | 西安兴汇电力科技有限公司 | Distribution network line fault judger |
| US20110190958A1 (en) * | 2005-06-03 | 2011-08-04 | Hirst David R | Grid responsive control device |
| CN102738777A (en) * | 2012-06-20 | 2012-10-17 | 广西电网公司电力科学研究院 | Rapid distribution network fault self-recovery method based on generic object oriented substation event (GOOSE) message |
-
2012
- 2012-12-07 CN CN201210524287.9A patent/CN103117885B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110190958A1 (en) * | 2005-06-03 | 2011-08-04 | Hirst David R | Grid responsive control device |
| CN201673233U (en) * | 2010-05-26 | 2010-12-15 | 西安兴汇电力科技有限公司 | Distribution network line fault judger |
| CN102738777A (en) * | 2012-06-20 | 2012-10-17 | 广西电网公司电力科学研究院 | Rapid distribution network fault self-recovery method based on generic object oriented substation event (GOOSE) message |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281991A (en) * | 2015-09-10 | 2016-01-27 | 东南大学 | Distribution network terminal self-description method based on IEC 60870-5-104 protocol expansion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103117885B (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11062212B2 (en) | Outage prevention in an electric power distribution grid using smart meter messaging | |
| Bialek et al. | Benchmarking and validation of cascading failure analysis tools | |
| JP5616330B2 (en) | Method and system for managing a power grid | |
| Maitra et al. | Microgrid controllers: expanding their role and evaluating their performance | |
| CN102436226A (en) | Online monitoring and condition maintenance management system | |
| CN104933631A (en) | Power distribution network operation online analysis and evaluation system | |
| CN102867079B (en) | Simple method and system for structuring and filing real-time running way of power grid | |
| CN102123045A (en) | Modeling method for high-voltage equipment on-line monitoring systems based on international electro-technical commission (IEC) 61850 | |
| CN103414251A (en) | Substation network communication simulation system based on IEC 61850 | |
| CN108710099A (en) | Capacitance type potential transformer monitoring alarm method and system | |
| CN109949178B (en) | Method for judging and complementing power failure event of medium-voltage distribution network based on support vector machine | |
| CN102768705A (en) | IEC (International Electrotechnical Commission) 61968-based power distribution network model interoperation and functional verification method | |
| Boardman | The role of integrated distribution management systems in smart grid implementations | |
| CN116522746A (en) | Power distribution hosting method for high-energy-consumption enterprises | |
| US20110264477A1 (en) | Methods and a system for use of business process management for demand response | |
| CN104834305A (en) | Distribution network automated terminal telemetering abnormity analyzing system and method based on DMS system | |
| Bai et al. | Automatic modeling and optimization for the digital twin of a regional multi-energy system | |
| CN117374978A (en) | Grid-connected scheduling management method and system constructed by combining knowledge graph | |
| CN112258030A (en) | Site selection method and system for intelligent switching station of power distribution network and information data processing terminal | |
| Huang et al. | Digital twin modeling and operating state assessment of substation equipment | |
| CN102638101A (en) | Method and device for scheduling fault recovery resource of power distribution network | |
| CN103117885A (en) | Intelligent power distribution network terminal abnormal communication automatic detection method based on data encryption standard (DES) principle | |
| CN109685682A (en) | The method of regulator control system inspection operation ticket is intelligently generated based on relational database | |
| Salman | Evolution of conventional power systems to smart grids | |
| CN107123062B (en) | Power distribution network operation risk control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |