CN103236745A - Distinguishing method of misreported remote signaling and correct remote signaling of transformer substation - Google Patents
Distinguishing method of misreported remote signaling and correct remote signaling of transformer substation Download PDFInfo
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- 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
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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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- 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
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Abstract
The invention provides a distinguishing method of misreported remote signaling and correct remote signaling of a transformer substation. Two types of rules aiming at normal signals and misreported signals in remote signaling signals can be set respectively; real-time remote signaling signals can be acquired in an SCADA (supervisory control and data acquisition) system; acquired remote signaling signals are examined one by one by the set rules; correct and misreported remote signaling attributive identification is carried out on each analyzed remote signaling signal; the quantities of the remote signaling signals respectively conforming to normal signal rules and misreported signal rules are recorded and counted; and analysis results of the remote signaling signals are output, displayed, and saved to support history enquiry and subsequent processing. With the adoption of the distinguishing method of the misreported remote signaling and correct remote signaling of the transformer substation, power grid running data transmitted by the SCADA system can be received in real time; whether remote measuring remote signaling signals belong to the normal signals or the misreported signals is distinguished according to the designed signal processing rules, so that the remote signaling signals are used as assistance of the SCADA system, so as to maintain the reliable running of the SCADA system and the power grid.
Description
Technical field
The present invention relates to power system signal remote signalling field, particularly the detection method of the wrong report remote signalling of a kind of transformer station and correct remote signalling.
Background technology
The remote signalling wrong report is an ancient topic of puzzlement power scheduling department.The reason of remote signalling wrong report is a lot, and the reason of remote signalling contact aspect is arranged, and reason such as the contact wrong of signal collecting device itself also arranged, and the reason of transmission channel etc.Sometimes because the imprecision of dispatching terminal computer system remote signalling acquisition process software also can cause malfunction and the shake of part remote signals.The form of expression of remote signalling wrong report is also varied, the variation repeatedly (often showing as folding signal or action/reset signal occurs in pairs) of same signal or a plurality of signals is arranged, and simultaneously a large amount of signals transmission (a large amount of remote signals that often show as same factory station transmit simultaneously), irregular accidental false positive signal is also arranged.Along with the remote signalling point that inserts in the dispatch automated system is more and more, quantity and the frequency of wrong report remote signalling also can progressively rise.In order to deal with the remote signalling wrong report, relevant departments have taked multiple measure, as the docking point shake, increase anti-shake time-delay, for the reason of transmission channel aspect, adopt shielded twisted-pair cable, and design to find and revise wrong report remote signalling etc. by RTU software.
Power-management centre SCADA system is the strong instrument that the dispatcher monitors operation of power networks and processing accident.Along with the continuous development of computer and network technologies, the function of SCADA system also from strength to strength.On the one hand, come more abundant approximately based on the application software of SCADA platform, for example voltage power-less is controlled automatically, electric network fault analysis and processing etc., on the other hand, demand based on the system integration of IEC61970 standard and electrical network interconnection technique etc. also constantly increases, so the external issue of real time information (remote measure and communication etc.) and receive also more and more general.The application software of real-time response requires and can obtain authentic and valid remote measure and communication information from the SCADA system, and the same requirement of the system integration and interconnection technique is authentic and valid from the signal that the SCADA system obtains, reduce repeating signal, false positive signal to the interference of system as far as possible, avoid taking unnecessary Internet resources.And because a variety of causes also exists various interference signals, especially the remote measure and communication false positive signal in the SCADA dispatching system.The existence of interference signal has very big influence to SCADA system itself and to the access of following other application.
In dispatching terminal SCADA system, also take some measures to filter out part wrong report remote signalling sometimes, for example, filter out the repeated displacement signal by limit switch displacement number of times.But owing to must guarantee the requirement of real-time, the SCADA system is not very perfect to the processing of false positive signal, can only be very preliminary, and most false positive signal can not be identified.Yet along with popularizing of the development of automatic technology and equipment, particularly comprehensive automation, factory's station remote signalling amount is increased sharply the possibility that the increase of semaphore also will cause the false positive signal amount to rise at double.The situation of modal remote signalling wrong report is exactly the interior single switch displacement situation frequently of remote signalling displacement and certain factory station a large amount of in certain factory station.If consider the wrong report situation of guard signal and plug-in strip signal, the possibility that the remote signalling wrong report takes place is just higher.The existence of these false positive signal has caused certain influence to the operation of dispatch automated system inevitably.Remote signals in the SCADA system is analyzed, rejected false positive signal, at present and following SCADA uses and have realistic meaning based on other application of SCADA signal.
Summary of the invention
The detection method that the purpose of this invention is to provide the wrong report remote signalling of a kind of transformer station and correct remote signalling, receive the operation of power networks data that the SCADA system sends in real time, the remote measure and communication signal of differentiating wherein according to the signal processing rule of design belongs to normal signal or false positive signal, to safeguard the reliability service of SCADA system.
In order to achieve the above object, a technical scheme of the present invention provides the detection method of the wrong report remote signalling of a kind of transformer station and correct remote signalling, and it comprises:
Set respectively two rule-likes at normal signal in the remote signals and false positive signal;
From the SCADA system, obtain real-time remote signals, each remote signals that obtains is examined one by one with the described rule of setting;
Remote signals after each the is analyzed remote signalling attribute-bit of correcting errors; The remote signals quantity that meets normal signal rule and false positive signal rule is respectively recorded and adds up;
Analysis result to remote signals is exported demonstration, and deposits to support historical query and subsequent treatment.
The data of obtaining from the SCADA system have electrical network static information and electrical network dynamic operation information;
Wherein, described electrical network static information comprises the topological relation information of describing the annexation between the electrical network primary equipment;
Described electrical network dynamic operation information is included in when real-time remote measure and communication data change and obtains, and the switch changed position information of therefrom separating; When capturing new switch changed position information, namely begin with the rule of setting it to be analyzed.
The rule that sets meets the dispatching of power netwoks operating standard, the conventional knowledge of primary equipment installation and operation, once reach the logical relation of secondary device, with the operation characteristic of signal collecting device, the external rules that further comprises predefined internal rule and can import by man-machine interface in the later stage.
When rule is set, with repair apparatus and the remote signals that produces of charging equipment not, be defined as normal signal respectively;
Then in when examination, the real-time storehouse by the SCADA system obtains the sign board type of equipment and identifies, and all regards the equipment that wherein has maintenance, ground connection, ad hoc inspection and repair attribute as repair apparatus;
Detect also in the identification topological relation, the equipment that meets the following conditions simultaneously is charging equipment not: namely, the disconnecting link of each side of equipment is in the separating brake position, and each side of equipment all can not search the power supply point in the system.
When rule is set, with the remote signals that meets the following conditions, be defined as normal signal respectively;
That is, recognize the switch trip item during examination, with switch failure tripping operation item or with the simultaneous situation of switch events journal item under, judge that the switch trip signal of receiving is normal signal;
Or, recognize the divide-shut brake signal of switch during examination, received again simultaneously under the situation of protection actuating signal of switch corresponding device, judge that the divide-shut brake signal of the switch of receiving is normal signal.
When rule was set, the remote signals with the switchgear of receiving the remote control item in advance produces was defined as normal signal;
Then when examination, the anti-school of the remote control of sense switch and remote control fill order, before the actuating signal of receiving switch, received the remote control item of this switch, think that then the action of this switch is based on the true operation of SCADA system remote control, judge that then the switch actuating signals of receiving is normal signal.
When rule was set, correspondence was set in following situation correspondence in the rule of normal signal and false positive signal;
That is, in when examination, after receiving the switch sub-gate signal, the remote measurement value of obtaining corresponding device again from the SCADA system detects, and when the remote measurement value belongs in the null value scope of setting, judges that the switch sub-gate signal of receiving is normal signal;
It is outer and greater than zero condition that the remote measurement value is belonged to the null value scope of setting, and the switch sub-gate signal of receiving as judgement is one of them reason of false positive signal, and need use other false positive signal rule that this switch sub-gate signal is verified simultaneously.
When rule is set, with the remote signals that meets the following conditions, be defined as false positive signal respectively;
That is, in when examination, the setting-up time wide-ultra is crossed the switch actuating signals of setting operation number of times, being judged as is the false positive signal that transmits repeatedly;
Or, receiving that the switch remote signals with factory's station displacement simultaneously surpasses under the situation of the upper limit, judges that the signal of receiving is false positive signal.
Compared with prior art, the detection method of a kind of transformer station of the present invention wrong report remote signalling and correct remote signalling, its advantage is:
Among the present invention, by remote signalling wrong report situation common in the area power grid being classified and summing up, in conjunction with the electric grid operating knowledge under the states such as the normal operation of electrical network and fault, maintenance, propose the analysis strategy of the reasonably normal remote signalling of a cover and wrong report remote signalling, thereby can from a large amount of remote signals of obtaining in real time, analyze possible false positive signal.According to the characteristics of remote signals and the operation characteristic of electric power system, designed the signal analysis rule base based on the expert system knowledge base mode, and realize the high efficiency reasoning of knowledge base is controlled, be the entry condition of knowledge base with signal to be analyzed, relevant remote signalling telemetry intelligence (TELINT) is as the subsidiary conditions of rule judgment, come the picked up signal analysis result by the coupling of rule, so that provide necessary explanation and manual intervention means to the signal analysis result who obtains.Also the signal analysis rule is pressed normal signal and false positive signal two rule-like settings among the present invention, satisfy the quantity of two rule-likes and the possibility that character is come the wrong report of preliminary judgement signal by signal.System can remedy the deficiency of internal rule by the matching design of internal rule and external rules.
Can obtain whole real-time telemetry remote signalling data of SCADA among the present invention, mainly be the switch changed position signal to be separated analyze, but reserved the analysis interface of guard signal and disconnecting link signal, can insert immediately when needed.It preferred embodiment is independently network node of employing and SCADA system, and the signal analysis result who produces does not send to the server of SCADA system, namely, the remote measure and communication of seeing on dispatcher's work station remains the real time data from the SCADA server, rather than the data after the mistake telemetry system is analyzed.Such benefit is, can reduce newly-increased change of using the SCADA system, no matter is on network configuration or application program, and the SCADA system does not need to make any change, guaranteed the safe and reliable of operation.
Description of drawings
Fig. 1 is the operational flow diagram of the wrong report remote signalling of transformer station described in the present invention and a preferred embodiment of the detection method of correct remote signalling.
Embodiment
The differentiation of normal signal and false positive signal can realize by a kind of expert system of power domain in the present invention in the remote signals; Described expert system is one and has the computer program of intelligent characteristics and the hardware system of supporting this program of lift-launch, can utilize a large amount of knowledge of specific area expert to solve practical problem by the inferential capability of simulating human expert thinking.The basic composition of described expert system comprises: knowledge base, inference machine, man-machine interface.
Described knowledge base is the set of the needed domain knowledge of problem solving, comprises brass tacks, rule and other for information about.Representation of knowledge form has production, framework, semantic network etc., and uses to such an extent that comparatively general knowledge is production rule in expert system.
Described inference machine is the core actuator that implementation issue is found the solution, and it is actually the program that knowledge is made an explanation, according to the semanteme of knowledge, to the knowledge that finds by the certain strategy execution that makes an explanation, and outcome record in the suitable space of dynamic base.
Described man-machine interface, realization system and user's information exchange provides the interactive environment of a friendly interface for the user uses expert system.By this interface, the user imports essential information, the relevant issues that the answer system provides, and the output The reasoning results reaches relevant explanation etc.
As shown in Figure 1, for the present invention, described detection method comprises following content:
In knowledge base, set normal signal and this two rule-like of false positive signal in the remote signals; For example need among the present invention in conjunction with the dispatching of power netwoks operating standard, the conventional knowledge of primary equipment installation and operation, once reach the logical relation of secondary device, the operation characteristic of signal collecting device waits to carry out the formulation of above-mentioned rule.
By with the data transmission interface of SCADA system connectivity, obtain remote signals real-time in the SCADA system and deposit in the knowledge base.
By inference machine, after each remote signals of obtaining and set two rule-likes are mated one by one and searching for, the remote signalling attribute of correcting errors of each remote signals is identified; And, can record the rule numbers that is satisfied respectively, be convenient to the follow-up degree of correcting errors of how much weighing remote signals with the regular quantity that satisfies normal remote signalling and mistake remote signalling.
Show the differentiation result of normal signal and false positive signal by man-machine interface output, and provide signal to confirm and functions such as automatic deposit and inquiry.In addition, in knowledge base, set or revise corresponding rule, also can use man-machine interface to carry out.
In the specific embodiment of the present invention, mainly describe for example with (that is the folding lock signal of switch) analysis in the SCADA system.And those skilled in the art can adapt to modification by the basis at detection method of the present invention where necessary, carry out corresponding analyzing and processing with the guard signal in the further access operation of power networks and disconnecting link signal.Therefore, two rule-likes that arrange in the present embodiment namely are that the folding lock signal with switch is complementary; Then, in all the remote measure and communication signals by the SCADA system acquisition, the folding lock signal of switch need be separated, and utilize these rules to examine, to obtain corresponding analysis result.
Required data among the present invention, a class is that the electrical network static information refers to that mainly the annexation between the electrical network primary equipment is topological relation information, another kind of is that electrical network dynamic operation information is real-time remote measure and communication data.These data can be obtained by standard interface accessing SCADA system.Static information can obtain by the artwork integrated technique of SCADA system, loads automatically when program start.Multidate information then obtains automatically by the data flow mode, instantaneous renewal, and namely this application can instantaneously capture and start corresponding handling procedure when the real-time telemetry remote signalling data of SCADA system change.When capturing new remote signalling displacement, just begin call signal analysis thread signal is analyzed.
Normal signal described in the present invention comprises the various remote measure and communication signals that electrical network sends under normal condition, the unusual and fault-signal that electrical network sends under improper and malfunction, and the test signal that under debugging or inspecting state, generates of equipment etc.
When setting normal signal regular among the present invention, need consider repair apparatus; Charging equipment not; YX period go beyond the scope (determining whether to adopt according to field condition); Receive the switchgear of remote control (comprising remote control execution and the success of anti-school) item in advance; Switch changed position and switch failure tripping operation/SOE item exist simultaneously; Switch and protection actuating signal exist simultaneously; The YC=0 of switch separating brake corresponding device; The YC of switch combined floodgate corresponding device〉0; Satisfy self-defined normal remote signalling condition; The situation of normal signal (at gear signal).
1) repair apparatus is the class special installation in the electrical network, and it has following characteristics: (1), each side of equipment is not connected state, and namely each the side point from equipment all can not find power supply point; (2), equipment has the ground connection disconnecting link or earth connection is ground state; (3) may have distinctive mark boards such as ground connection, maintenance or ad hoc inspection and repair on the equipment.In the native system repair apparatus there is special regulatory requirement, this is because repair apparatus may frequently or occasionally send some abnormal operation signals because of the debugging requirements of one's work, these signals are signals of the actual generation of slave station end, though be not false positive signal, if but can not correctly identify then may cause interference to dispatcher's work, so require correct identification to have the equipment of maintenance attribute in this application, the various signals that this kind equipment produces made identification.Obtain the sign board type of equipment among the present invention by the real-time storehouse of SCADA system, all regard all equipment with maintenance, ground connection, ad hoc inspection and repair attribute wherein as repair apparatus, the signal of its generation is attributed to normal signal.Current all repair apparatus can show by man-machine interface.
2) not charging equipment refer to equipment each side tool lock all at open position, be in the not equipment of electriferous state, its signal that produces is the same with repair apparatus, may be debug signal.Not charging equipment judge one is whether the disconnecting link of seeing each side of equipment is in the separating brake position, the 2nd, see from each side of equipment to search power supply point the system.If these two are all satisfied, then equipment is considered to not charging equipment.The judgement of charging equipment will not realize by perfect topological analysis program.
3) switch trip and switch failure tripping operation/switch S OE exist simultaneously; If switch trip and two items of this switch failure tripping operation all exist simultaneously, illustrate that switch is emergency stop valve trip.This rule designs at the common technique of SCADA system.The SOE(sequence of events recording), exactly when remote terminal unit detects the displacement of remote signalling state, the moment, displacement state and the equipment serial number of record remote signalling displacement are formed logout information and are transmitted to main website.As long as alarm shows SOE, illustrate that remote terminal unit at least receives the remote signalling contact action message of a reality.If therefore two items of switch trip and this switch S OE all exist simultaneously, illustrate that RTU is the remote signalling displacement signal of having received switch really.And if the switch tripping operation that has an accident then can produce two items of switch separating brake item and switch failure tripping operation item, this also can be used as the basis for estimation of normal remote signalling.
4) receive the switch of remote control item in advance; If switch is carried out the remote control operation, then can carry out remote control at the SCADA dispatching platform and preset order, the end of standing then returns the anti-school result of remote control, and the success of anti-school then can continue to issue the remote control fill order.If the remote control item of this switch was arranged before receiving switch actuating signals, think that then switch motion is based on the true operation of SCADA remote control, mainly be the anti-school of remote control and the remote control fill order of analyzing switch to the identification of switch remote control item.
5) switch and protection actuating signal exist simultaneously; If both received the divide-shut brake signal of switch within a short period of time, received the protection actuating signal of switch corresponding device again, then switching signal is thought it may is the switch motion that is triggered by guard signal.This rule depends on system to the function of switch and the automatic coupling of guard signal, and namely system analyzes switch or its corresponding device whether this signal belongs to action automatically according to received protection actuating signal.
6) switch separating brake corresponding equipment YC=0; After the switch sub-gate signal is received by system, can from the SCADA system, reach to such an extent that the corresponding equipment remote measurement comprises P automatically, Q, I through after the time-delay of several seconds.If the remote measurement value is 0, think that then this switch actuating signals has certain confidence level.Certainly, the differentiation of null value be not strictness whether see obtained YC=0, but whether see in rational null value scope.
Switch switching signal corresponding equipment YC〉0 also be based on same consideration.
When setting false positive signal regular among the present invention, then need to consider the YC of switch separating brake corresponding device〉0; The repeated signal displacement; Satisfy self-defined mistake remote signalling condition; Situation with factory's simultaneously a large amount of remote signals displacements in station.
1. the YC of switch separating brake corresponding device〉0; If receive the YC that obtains this switch correspondence after switch sub-gate signal and the process time-delay of several seconds still greater than 0, though can not affirm fully that this signal is false positive signal, can be with this switch motion record as one of reason of reporting remote signalling by mistake.
2. repeated displacement signal; This is to design according to the operating feature of electric power system primary equipment under normal and accident condition.When the electrical network normal running, can there be the folding situation repeatedly of same switch, though when equipment debugging, may there be the signal of folding repeatedly at same equipment, can mask by the maintenance attribute of equipment.When power grid accident, because also there is the repeatedly situation of folding of line switching in the existence of ZCH, thereby but rational number of operations restriction can be set according to the rule of ZCH filter out this class signal.The switch actuating signals that surpasses the reasonable operation number of times is all thought the false positive signal that transmits repeatedly.In the system number of operations is restricted to 4 times at present, namely within a short period of time any switch the breaking-closing operating total degree can be above 4 times.
3. with the simultaneously a large amount of remote signals displacements in factory station; This is the more representational false positive signal of a class.Owing to reasons such as RTU dead electricity, RTU reset, often there is this class signal.By the certain upper limit value is set, identify the remote signals that to report by mistake.To count with the switch remote signalling of factory's station displacement simultaneously at present and be set to 12.Surpass 12 the false positive signal of thinking.
Above for example 1) ~ 6) described normal signal rule, reach for example 1 ~ 3 described false positive signal rule, it all is the internal rule that directly is set in the knowledge base, can be that regulation can only be increased by the personnel (system manager, domain expert etc.) of specified permission or revise, also can be by being directed into native system in the other system in the field, or in the manufacturing process of system, directly write in the chip of system, etc.
In addition, can also carry out external maintenance to rule by the interface mode among the present invention, the external definition of rule is corresponding with the formulation of internal rule, also by normal remote signalling rule and the design of mistake remote signalling rule two classes, can according to circumstances formulate flexibly.Custom rule is the interface operation mode based on dialog box, generates the regular expression statement that signal is handled by switchtype and the relevant Rule of judgment of selecting action.Custom rule can be have with or the combination of a plurality of conditional statements of logic, have higher flexibility.
Among the present invention, each the switch tool displacement remote signalling that gets access to is all analyzed, and put sign normal or the wrong report remote signalling, and the number of signals that will meet normal remote signalling and wrong report remote signalling rule shows.Remote signalling record after the analysis shows by man-machine interface.For example, may be displayed on switch tool remote signalling record and the arrangement in chronological order that program run duration system captures.When showing, the switch tool actuating signal after also will analyzing is saved in the server, and special interface for users query history record is provided, and the remote signalling unconfirmed in the historical record is confirmed.By the statistical function of remote signalling record, can also check the rate of false alarm of switch tool action class remote signals easily outward.
The present invention preferably operates in the network node independently with the SCADA system, has separate threads and receives the operation of power networks data that the SCADA system sends in real time, and have other thread to be responsible for the analyzing and processing work of data specially.And the present invention is to carry out unidirectional data to exchange with the SCADA system, namely only obtains the real-time telemetry remote signals from the SCADA system, and the result of analyzing and processing does not send to SCADA.
Yet, be to have reserved the outside data-interface of issuing can be provided among the present invention, when actual needs, the analysis result of correcting errors of remote signals can be sent on the network or other platform of SCADA system.Consider that the IEC61970 standard is the cross-platform data exchange standard that generally adopts in the present electric power system, will follow the IEC61970 standard aspect the outbound data issue in the system of the present invention.
In sum, the present invention can obtain whole remote measure and communication signals of SCADA system in real time and switch actuating signals is separated for analyzing use; Signal analysis knowledge base based on expert system can comparatively correctly be estimated switch actuating signals, and signal is identified as normal remote signalling and wrong report remote signals and can adds up remote signalling wrong report situation automatically; Utilize knowledge edition and the look facility of interfaceization to make the user can participate in definition and the maintenance of rule base directly.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. the detection method of transformer station's wrong report remote signalling and correct remote signalling is characterized in that, comprises:
Set respectively two rule-likes at normal signal in the remote signals and false positive signal;
From the SCADA system, obtain real-time remote signals, each remote signals that obtains is examined one by one with the described rule of setting;
Remote signals after each the is analyzed remote signalling attribute-bit of correcting errors; The remote signals quantity that meets normal signal rule and false positive signal rule is respectively recorded and adds up;
Analysis result to remote signals is exported demonstration, and deposits to support historical query and subsequent treatment.
2. detection method as claimed in claim 1 is characterized in that,
The data of obtaining from the SCADA system have electrical network static information and electrical network dynamic operation information;
Wherein, described electrical network static information comprises the topological relation information of describing the annexation between the electrical network primary equipment;
Described electrical network dynamic operation information is included in when real-time remote measure and communication data change and obtains, and the switch changed position information of therefrom separating; When capturing new switch changed position information, namely begin with the rule of setting it to be analyzed.
3. detection method as claimed in claim 2 is characterized in that,
The rule that sets meets the dispatching of power netwoks operating standard, the conventional knowledge of primary equipment installation and operation, once reach the logical relation of secondary device, with the operation characteristic of signal collecting device, the external rules that further comprises predefined internal rule and can import by man-machine interface in the later stage.
4. detection method as claimed in claim 3 is characterized in that,
When rule is set, with repair apparatus and the remote signals that produces of charging equipment not, be defined as normal signal respectively;
Then in when examination, the real-time storehouse by the SCADA system obtains the sign board type of equipment and identifies, and all regards the equipment that wherein has maintenance, ground connection, ad hoc inspection and repair attribute as repair apparatus;
Detect also in the identification topological relation, the equipment that meets the following conditions simultaneously is charging equipment not: namely, the disconnecting link of each side of equipment is in the separating brake position, and each side of equipment all can not search the power supply point in the system.
5. detection method as claimed in claim 3 is characterized in that,
When rule is set, with the remote signals that meets the following conditions, be defined as normal signal respectively;
That is, recognize the switch trip item during examination, with switch failure tripping operation item or with the simultaneous situation of switch events journal item under, judge that the switch trip signal of receiving is normal signal;
Or, recognize the divide-shut brake signal of switch during examination, received again simultaneously under the situation of protection actuating signal of switch corresponding device, judge that the divide-shut brake signal of the switch of receiving is normal signal.
6. detection method as claimed in claim 3 is characterized in that,
When rule was set, the remote signals with the switchgear of receiving the remote control item in advance produces was defined as normal signal;
Then when examination, the anti-school of the remote control of sense switch and remote control fill order, before the actuating signal of receiving switch, received the remote control item of this switch, think that then the action of this switch is based on the true operation of SCADA system remote control, judge that then the switch actuating signals of receiving is normal signal.
7. detection method as claimed in claim 3 is characterized in that,
When rule was set, correspondence was set in following situation correspondence in the rule of normal signal and false positive signal;
That is, in when examination, after receiving the switch sub-gate signal, the remote measurement value of obtaining corresponding device again from the SCADA system detects, and when the remote measurement value belongs in the null value scope of setting, judges that the switch sub-gate signal of receiving is normal signal;
It is outer and greater than zero condition that the remote measurement value is belonged to the null value scope of setting, and the switch sub-gate signal of receiving as judgement is one of them reason of false positive signal, and need use other false positive signal rule that this switch sub-gate signal is verified simultaneously.
8. detection method as claimed in claim 3 is characterized in that,
When rule is set, with the remote signals that meets the following conditions, be defined as false positive signal respectively;
That is, in when examination, the setting-up time wide-ultra is crossed the switch actuating signals of setting operation number of times, being judged as is the false positive signal that transmits repeatedly;
Or, receiving that the switch remote signals with factory's station displacement simultaneously surpasses under the situation of the upper limit, judges that the signal of receiving is false positive signal.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104218674A (en) * | 2014-08-06 | 2014-12-17 | 国网上海市电力公司 | Automatic measurement abnormity alarm method for power grid |
| CN105099823A (en) * | 2015-08-06 | 2015-11-25 | 江苏省电力公司苏州供电公司 | Remote signaling system tester and remote signaling system test method based on remote signaling system tester |
| CN105449850A (en) * | 2015-11-17 | 2016-03-30 | 宁波天灵信息科技有限公司 | Automatic early warning method based on integrated power grid dispatching system |
| CN106602716A (en) * | 2015-10-15 | 2017-04-26 | 中国电力科学研究院 | Distribution automation system-based statistic method for telesignalling correct rate |
| CN106877510A (en) * | 2017-04-12 | 2017-06-20 | 国网上海市电力公司 | A kind of O＆M method of AC-DC hybrid power grid intelligent substation |
| CN109143878A (en) * | 2018-08-06 | 2019-01-04 | 广州供电局有限公司 | The remote signalling message and SOE message treatment method in multi pass acquisition channel |
| CN111965532A (en) * | 2020-08-17 | 2020-11-20 | 国网安徽省电力有限公司黄山供电公司 | Method for judging switch real state based on network topology |
| CN112821265A (en) * | 2020-12-31 | 2021-05-18 | 广东电网有限责任公司 | Method and device for automatically shielding and de-shielding signal for overhauling electrical equipment |
| CN112884602A (en) * | 2021-02-24 | 2021-06-01 | 广东电网有限责任公司 | Power data accuracy analysis method, electronic device, and medium |
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| CN101989938A (en) * | 2009-08-04 | 2011-03-23 | 上海市电力公司 | Filtration system and method of mis-telecommand scheduling end of transformer substation |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218674A (en) * | 2014-08-06 | 2014-12-17 | 国网上海市电力公司 | Automatic measurement abnormity alarm method for power grid |
| CN105099823A (en) * | 2015-08-06 | 2015-11-25 | 江苏省电力公司苏州供电公司 | Remote signaling system tester and remote signaling system test method based on remote signaling system tester |
| CN106602716A (en) * | 2015-10-15 | 2017-04-26 | 中国电力科学研究院 | Distribution automation system-based statistic method for telesignalling correct rate |
| CN105449850A (en) * | 2015-11-17 | 2016-03-30 | 宁波天灵信息科技有限公司 | Automatic early warning method based on integrated power grid dispatching system |
| CN105449850B (en) * | 2015-11-17 | 2018-01-23 | 宁波天灵信息科技有限公司 | Automatic early warning method based on integrated power network dispatching system |
| CN106877510B (en) * | 2017-04-12 | 2020-02-21 | 国网上海市电力公司 | Operation and maintenance method for intelligent substation of alternating current-direct current hybrid power grid |
| CN106877510A (en) * | 2017-04-12 | 2017-06-20 | 国网上海市电力公司 | A kind of O＆M method of AC-DC hybrid power grid intelligent substation |
| CN109143878A (en) * | 2018-08-06 | 2019-01-04 | 广州供电局有限公司 | The remote signalling message and SOE message treatment method in multi pass acquisition channel |
| CN111965532A (en) * | 2020-08-17 | 2020-11-20 | 国网安徽省电力有限公司黄山供电公司 | Method for judging switch real state based on network topology |
| CN111965532B (en) * | 2020-08-17 | 2022-07-01 | 国网安徽省电力有限公司黄山供电公司 | Method for judging switch real state based on network topology |
| CN112821265A (en) * | 2020-12-31 | 2021-05-18 | 广东电网有限责任公司 | Method and device for automatically shielding and de-shielding signal for overhauling electrical equipment |
| CN112884602A (en) * | 2021-02-24 | 2021-06-01 | 广东电网有限责任公司 | Power data accuracy analysis method, electronic device, and medium |
| CN112884602B (en) * | 2021-02-24 | 2023-09-12 | 广东电网有限责任公司 | Power data accuracy analysis method, electronic equipment and medium |
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Application publication date: 20130807 |