CN106877510A - A kind of O＆M method of AC-DC hybrid power grid intelligent substation - Google Patents
A kind of O＆M method of AC-DC hybrid power grid intelligent substation Download PDFInfo
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- CN106877510A CN106877510A CN201710236758.9A CN201710236758A CN106877510A CN 106877510 A CN106877510 A CN 106877510A CN 201710236758 A CN201710236758 A CN 201710236758A CN 106877510 A CN106877510 A CN 106877510A
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- equipment
- power grid
- hybrid power
- expert system
- combining unit
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004891 communication Methods 0.000 claims description 12
- 238000009472 formulation Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 4
- 230000001131 transforming effect Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H02J13/0096—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of O＆M method of AC-DC hybrid power grid intelligent substation, the method is comprised the following steps：S1, for the O＆M equipment of intelligent substation, sets up the extended model of O＆M equipment；S2, formulates the rule that comprehensive combining unit, alternating current-direct current based on expert system surely control unit, switch intelligent cell and voltage combining unit；S3, corresponding expert system strategy is performed according to the rule that comprehensive combining unit, alternating current-direct current surely control unit, switch intelligent cell and voltage combining unit.The present invention uses for reference semantic net related notion, and the logic between expert system knowledge base different concepts becomes apparent from and unifies, and the rule set up has reached the purpose for improving expert system knowledge base autgmentability and practicality with strategy.
Description
Technical field
Safeguarded the present invention relates to intelligent grid, more particularly to a kind of O＆M side of AC-DC hybrid power grid intelligent substation
Method.
Background technology
China enters the AC-DC hybrid power grid epoch comprehensively, and intelligent substation is planned as a whole as its hub node in power network
Significant role is played in balance, about 5182 intelligent substations will put into operation in the end of the year 2015 of cut-off.Intelligent substation
Electrical secondary system is all encapsulated in configuration describing document（Substation Configuration Description, SCD）
In, therefore operation maintenance to transformer station brings very big difficulty.Just there is scholar to propose to use early in 2011 and 2012
The method of expert system is aided in the maintenance work of intelligent substation, guidance and help operations staff rapid pin to accident and
Exception makes accurate judgement, so as to improve substation operation managerial skills and reliability.Different from traditional transformer station, alternating current-direct current is mixed
Intelligent substation framework under connection background there occurs major transformation.Station equipment is more various, and peer-to-peer system is more complicated, protection
The realization of function depends on multiple equipment collective effect.Particularly with the transformer station of voltage levels, protection uses duplex configuration,
Further increase device category.As the secondary device for protecting high pressure primary equipment, will make once to set in the event of failure
Standby to lose protection and control, then the safe and stable operation to access system produces threat, to ensure the stabilization of ac and dc systemses
Work, AC Substation and DC converter station generally also configure stability control device.This is to transformer station's O＆M Auxiliary Decision Expert System
Propose huge demand and challenge.
The content of the invention
It is an object of the invention to provide a kind of O＆M method of AC-DC hybrid power grid intelligent substation, semantic net phase is used for reference
Concept is closed, the logic between expert system knowledge base different concepts becomes apparent from and unifies, the rule set up reaches with strategy
Improve the purpose of expert system knowledge base autgmentability and practicality.
In order to realize the above object the present invention is achieved by the following technical solutions：
A kind of O＆M method of AC-DC hybrid power grid intelligent substation, is characterized in, the method is comprised the following steps：
S1, for the O＆M equipment of intelligent substation, sets up the extended model of O＆M equipment；
S2, formulates comprehensive combining unit, alternating current-direct current based on expert system and surely controls unit, switch intelligent cell and voltage merging list
The rule of unit；
S3, it is right that the rule for surely controlling unit, switch intelligent cell and voltage combining unit according to comprehensive combining unit, alternating current-direct current is performed
The expert system strategy answered.
Described O＆M equipment includes alternating current-direct current substation equipment, IED equipment and communication equipment.
Described step S1 is specially：Alternating current-direct current transformer station is being set up respectively based on semantic net and with reference to IEC61850 standards
The extended model of equipment, IED equipment and communication equipment.
The described extended model for setting up alternating current-direct current substation equipment be using SCD file information, and by tie point will
Primary equipment is coupled together, and forms the network topology of transforming plant primary equipment.
The described extended model for setting up IED equipment is adopted for the relation between the logical node and primary equipment of secondary device
Realized with inheritance method.
The described extended model for setting up communication equipment is to belong to access point by UnderWhich inheritances with subnet
Property connection.
The rule of comprehensive combining unit of the formulation based on expert system is in described step S2：Switch intelligent cell, electricity
Press and unit exception will cause associated bus protection, route protection, main transformer protection, switch guarantor's survey device sampling abnormal,
Associated protection should be disabled, and carries out related operation isolation and isolated with maintenance.
The rule of voltage combining unit of the formulation based on expert system is in described step S2：Voltage combining unit need to stop
Can restart after being protected with correlation.
The rule of switch intelligent cell of the formulation based on expert system is in described step S2：When association switch intelligence is single
When unit breaks down, corresponding measure and control device, cut-in stand-by measure and control device should be disabled.
The alternating current-direct current based on expert system is formulated in described step S2 surely control the rule of unit and be：Stability control device is continuously adjusted
The system circuit that is related to of strategy exerts oneself power plant's combining unit and intelligent terminal will cause surely to control algorithm for power modulation amount exception, power extremely
Modulation mark is disorderly, should disable stability control device.
The present invention compared with prior art, with advantages below：
After the present invention uses for reference semantic net related notion, the logic between expert system knowledge base different concepts becomes apparent from and unites
One, the rule set up has reached the purpose for improving expert system knowledge base autgmentability and practicality with strategy.
With preferable dissemination and practical value, there is reference significance to improving complication system operation and maintenance level.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the O＆M method of AC-DC hybrid power grid intelligent substation of the invention.
Specific embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in figure 1, a kind of O＆M method of AC-DC hybrid power grid intelligent substation, the method is comprised the following steps：
S1, for the O＆M equipment of intelligent substation, sets up the extended model of O＆M equipment；
S2, formulates comprehensive combining unit, alternating current-direct current based on expert system and surely controls unit, switch intelligent cell and voltage merging list
The rule of unit；
S3, it is right that the rule for surely controlling unit, switch intelligent cell and voltage combining unit according to comprehensive combining unit, alternating current-direct current is performed
The expert system strategy answered.
Described O＆M equipment includes alternating current-direct current substation equipment, IED equipment and communication equipment.
Described step S1 is specially：Alternating current-direct current transformer station is being set up respectively based on semantic net and with reference to IEC61850 standards
The extended model of equipment, IED equipment and communication equipment.
Based on substation equipment description language, i.e. SCL language defined in IEC61850-6 standards, the language is used for carrying out
The equipment of IED and communication system.SCL realizes that interoperability has important effect for intelligent electronic device, and its appearance makes
Obtaining communication system equipment data can be between the intelligent electronic device and system equipment instrument that different manufacturers provides mutually
Exchange.In IEC61850, general method is that all of application function is decomposed into minimum material, and by these entities reasonably
Special equipment, i.e. IED are assigned to, these entities are referred to as logical node.Logical node includes the data with exclusive data attribute,
By service-specific, the information as representated by data and data attribute is exchanged.
With reference to the requirement in IEC61850, use for reference in semantic net on Similar integral, inheritance of attribute related notion to power transformation
Three parts of relevant device of standing point are modeled.As can be seen that semantic net model buildings process and IEC 61850 from body name
Standard is combined closely, and no longer body is explained as space is limited.It is worth noting that, largely used in semantic pessimistic concurrency control two
The attribute AUnderWhichB and AAndB of body annexation kind is represented, during what wherein UnderWhich was characterized is object model
Succession concept, i.e., the level nest relation in SCD file；What And was characterized is topological connection relation between primary equipment with
And a subordinate relation between secondary device.
The reusability of primary equipment public attribute is improved during substation equipment module modeling as far as possible, will once be set as far as possible
Standby public attribute is placed in classification.Model should possess the ability of very strong expression primary equipment topological connection relation simultaneously.Institute
That states set up, and the extended model of alternating current-direct current substation equipment is using SCD file information, and connected primary equipment by tie point
Pick up and, and form the network topology of transforming plant primary equipment.
On the one hand IED equipment need closely to be connected with primary equipment as secondary device, on the other hand, electrical secondary system letter
Number transitive dependency in communication network.So should be protruded in modeling process first and second equipment connecting relation and electrical secondary system with
The annexation of communication system.Due to these incidence relations, in the reasoning process of follow-up expert system, to be frequently used
Arrive, therefore it must also be noted that the expression of appropriate section is tried one's best succinctly, the efficiency overall to improve expert system.Further, since logic
Node（LNode）Relation species between substation equipment is more, in order to follow shared attribute multiplexing principle, logical node with
Relation between primary equipment is also adopted by inheritance method and is realized.Stability control device（Stability control device,
SCDevice）As the important secondary device that Ac/dc Power Systems run, the special IED of a class is can be considered.
The described extended model for setting up IED equipment is adopted for the relation between the logical node and primary equipment of secondary device
Realized with inheritance method.
The described extended model for setting up communication equipment is to belong to access point by UnderWhich inheritances with subnet
Property connection.
The regular Rule1 of comprehensive combining unit of the formulation based on expert system is in described step S2：Switch intelligence is single
Unit, voltage combining unit will cause associated bus protection, route protection, main transformer protection, switch guarantor to survey device and sample extremely
It is abnormal, associated protection should be disabled, and carries out related operation isolation and isolated with maintenance.
The rule that the voltage combining unit based on expert system is formulated in described step S2 is Rule2：Voltage merges single
Unit can restart after need to disabling related protection.
The rule that the switch intelligent cell based on expert system is formulated in described step S2 is Rule3：When association is switched
When intelligent cell breaks down, corresponding measure and control device, cut-in stand-by measure and control device should be disabled.
The rule that alternating current-direct current of the formulation based on expert system surely controls unit in described step S2 is Rule4：Stability control device
Circuit that continuous modulation strategy is related to or exert oneself power plant's combining unit and intelligent terminal will cause surely to control algorithm for power modulation amount extremely it is different
Often, algorithm for power modulation mark is disorderly, should disable stability control device.
With CLIPS object-oriented methods, class and the effect of inheritance of attribute in semantic pessimistic concurrency control are reached.Above-mentioned intelligent power transformation
The O＆M maintenance issue stood, the model in CLIPS is implemented.
Expert system isolation strategy includes protection deactivation, reclosing, observing and controlling switching, the continuous tuning DC power of stability control device.
In sum, the O＆M method of a kind of AC-DC hybrid power grid intelligent substation of the invention, uses for reference semantic net related
Concept, the logic between expert system knowledge base different concepts becomes apparent from and unifies, and rule and the strategy set up reach
Improve the purpose of expert system knowledge base autgmentability and practicality.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for of the invention
Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of O＆M method of AC-DC hybrid power grid intelligent substation, it is characterised in that the method is comprised the following steps：
S1, for the O＆M equipment of intelligent substation, sets up the extended model of O＆M equipment；
S2, formulates comprehensive combining unit, alternating current-direct current based on expert system and surely controls unit, switch intelligent cell and voltage merging list
The rule of unit；
S3, it is right that the rule for surely controlling unit, switch intelligent cell and voltage combining unit according to comprehensive combining unit, alternating current-direct current is performed
The expert system strategy answered.
2. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 1, it is characterised in that described fortune
Dimension equipment includes alternating current-direct current substation equipment, IED equipment and communication equipment.
3. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 2, it is characterised in that described step
Rapid S1 is specially：Alternating current-direct current substation equipment, IED equipment are being set up respectively based on semantic net and with reference to IEC61850 standards and are being led to
The extended model of letter equipment.
4. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 3, it is characterised in that described builds
The extended model of grade separation direct current substation equipment is, using SCD file information, and to be coupled together primary equipment by tie point,
And form the network topology of transforming plant primary equipment.
5. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 3, it is characterised in that described builds
The extended model of vertical IED equipment is realized for the relation between the logical node and primary equipment of secondary device using inheritance method.
6. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 1, it is characterised in that described builds
The extended model of vertical communication equipment is to be connected access point by UnderWhich inheritance attributes with subnet.
7. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 1, it is characterised in that described step
The rule of comprehensive combining unit of the formulation based on expert system is in rapid S2：Switch intelligent cell, voltage combining unit extremely will
Cause associated bus protection, route protection, main transformer protection, switch to be protected and survey device sampling exception, associated protection should be disabled,
And carry out related operation isolation and isolate with overhauling.
8. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 1, it is characterised in that described step
The rule of voltage combining unit of the formulation based on expert system is in rapid S2：Voltage combining unit can after need to disabling related protection
Restart.
9. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 1, it is characterised in that described step
The rule of switch intelligent cell of the formulation based on expert system is in rapid S2：When association switch intelligent cell breaks down, should
Disable corresponding measure and control device, cut-in stand-by measure and control device.
10. the O＆M method of AC-DC hybrid power grid intelligent substation as claimed in claim 1, it is characterised in that described
The alternating current-direct current based on expert system is formulated in step S2 surely control the rule of unit and be：The line that stability control device continuous modulation strategy is related to
Power plant's combining unit is exerted oneself and intelligent terminal will cause surely to control algorithm for power modulation amount exception extremely in road, and algorithm for power modulation mark is disorderly,
Stability control device should be disabled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710236758.9A CN106877510B (en) | 2017-04-12 | 2017-04-12 | Operation and maintenance method for intelligent substation of alternating current-direct current hybrid power grid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710236758.9A CN106877510B (en) | 2017-04-12 | 2017-04-12 | Operation and maintenance method for intelligent substation of alternating current-direct current hybrid power grid |
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| CN106877510B CN106877510B (en) | 2020-02-21 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236745A (en) * | 2013-05-07 | 2013-08-07 | 国家电网公司 | Distinguishing method of misreported remote signaling and correct remote signaling of transformer substation |
| CN103544574A (en) * | 2013-11-07 | 2014-01-29 | 南京国电南自轨道交通工程有限公司 | Transformer station intelligent expert system based on editable formula scripts |
| CN103729805A (en) * | 2014-01-04 | 2014-04-16 | 国家电网公司 | 500kV intelligent substation security arrangement ticket expert system |
-
2017
- 2017-04-12 CN CN201710236758.9A patent/CN106877510B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236745A (en) * | 2013-05-07 | 2013-08-07 | 国家电网公司 | Distinguishing method of misreported remote signaling and correct remote signaling of transformer substation |
| CN103544574A (en) * | 2013-11-07 | 2014-01-29 | 南京国电南自轨道交通工程有限公司 | Transformer station intelligent expert system based on editable formula scripts |
| CN103729805A (en) * | 2014-01-04 | 2014-04-16 | 国家电网公司 | 500kV intelligent substation security arrangement ticket expert system |
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| CN106877510B (en) | 2020-02-21 |
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