CN101989938A - Filtration system and method of mis-telecommand scheduling end of transformer substation - Google Patents
Filtration system and method of mis-telecommand scheduling end of transformer substation Download PDFInfo
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Abstract
The invention discloses a filtration system of a mis-telecommand scheduling end of a transformer substation, which is connected with an supervisory control and data acquisition (SCADA) system and comprises a real-time data acquisition module, a telecommand processing center module, a telecommand display and confirmation module and a history management module, and an expert processing system comprises a signal analyzing and processing knowledge base, a signal analysis module and a human-computer interface. The invention also discloses a filtration method of the mis-telecommand scheduling end of the transformer substation, comprising the following steps: 1. the real-time data acquisition module collects power grid static information and real-time telemetering telecommand data information in the SCADA system; 2. when the expert processing system in telecommand processing center module analysis judges whether the real-time telemetering telecommand data information is a normal telecommand signal or a mis-telecommand signal; and 3. the telecommand display and confirmation module marks the signal which is judged to be in normal telecommand as a normal telecommand signal mark, marks the signal which is judged to be in mis-telecommand as a mis-telecommand signal and filters the mis-telecommand signal. The accuracy rate of the system signal and the power grid scheduling efficiency are improved by using the system and the method.
Description
Technical field
The present invention relates to the area power grid monitoring, relate in particular to a kind of transformer station mistake remote signalling dispatching terminal filtration system, and transformer station's mistake remote signalling dispatching terminal filter method.
Background technology
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 abundant more 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 the interference of repeating signal, false positive signal as far as possible, avoid taking unnecessary Internet resources system.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 all has very big influence to SCADA system itself and to the access of following other application.
Along with popularizing of the development of automatic technology and equipment, particularly comprehensive automation, factory's station remote signalling amount is increased sharply at double.Several years ago, factory's station number that the dispatch automated system of an area power grid inserts has tens to one or two hundred, and total remote signalling amount has several thousand to 10,000 points.And now, factory's station number that area power grid inserted may reach hundreds of, and total remote signalling amount then may reach five, 60,000 and even nearly 100,000 points.The possibility that the increase of semaphore also will cause the false positive signal amount to rise.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
Technical problem to be solved by this invention provides a kind of transformer station mistake remote signalling dispatching terminal filtration system can judge the mistake remote signals from the remote measure and communication signal of SCADA system, the present invention also provides a kind of transformer station mistake remote signalling dispatching terminal filter method for this reason, can obtain the mistake remote signals in real time.
For solving the problems of the technologies described above, the technical scheme of transformer station of the present invention mistake remote signalling dispatching terminal filtration system is to be connected with the SCADA system, and to comprise with lower module:
The real-time data acquisition module is gathered electrical network static information and real-time remote measure and communication data message in the SCADA system;
Remote signalling processing center module can obtain SCADA system whole real-time telemetry remote signalling data, and comprises the analysis and judgement remote signalling being that normal remote signals still is the specialist processing system of mistake remote signals;
Remote signalling shows and confirms module, and the signal post that is judged as normal remote signalling is designated as normal remote signals mark, and the signal post that will be judged as the mistake remote signalling is designated as the mistake remote signals, plays the effect of filtering the mistake remote signals;
The history management module, the analysis and judgement result of preservation remote signals;
Described specialist processing system comprises the signal analysis and processing knowledge base, this signal analysis and processing knowledge base defines normal remote signalling rule and mistake remote signalling rule, also comprise signal analyse block, with obtained SCADA system data, mate with normal signal of setting in the signal analysis and processing knowledge base and false positive signal rule and search for, and draw coupling and Search Results, and also comprise man-machine interface, realize the information exchange between specialist processing system and the user.
Be as a further improvement on the present invention, also comprise the repair apparatus administration module, it is connected with remote signalling processing center module, can correctly discern the equipment with maintenance attribute, and the signal that this kind equipment produced is made identification.
As another kind of further improvement of the present invention be, comprise the real-time storehouse of current repair apparatus in the SCADA system, the equipment that comprises all maintenance, ground connection or ad hoc inspection and repair attribute, the real-time storehouse of this repair apparatus is connected with the repair apparatus administration module, with the repair apparatus message transmission in the repair apparatus administration module.
The technical scheme of transformer station of the present invention mistake remote signalling dispatching terminal filter method is may further comprise the steps:
1) the real-time data acquisition module is gathered electrical network static information and real-time remote measure and communication data message in the SCADA system;
2) specialist processing system judges that real-time remote measure and communication data message is that normal remote signals still is the mistake remote signals in the remote signalling processing center module analysis;
3) remote signalling shows and confirms that the signal post that module will be judged as normal remote signalling is designated as normal remote signals mark, and the signal post that will be judged as the mistake remote signalling is designated as the mistake remote signals, filters the mistake remote signals.
Be step 2 as a further improvement on the present invention) in may further comprise the steps:
A. with obtained SCADA system data, mate with normal signal of setting in the signal analysis and processing knowledge base and false positive signal rule and search for, and draw coupling and Search Results;
B. The above results is shown by man-machine interface.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and Examples:
Fig. 1 is the native system structural representation;
Fig. 2 is a specialist processing system structural representation of the present invention;
Fig. 3 is an embodiment of the invention schematic flow sheet.
Embodiment
As shown in Figure 1, transformer station of the present invention mistake remote signalling dispatching terminal filtration system is connected with the SCADA system, can be connected with the SCADA system and carry out exchanges data.
Comprise the real-time data acquisition module, gather electrical network static information and real-time remote measure and communication data message in the SCADA system.In the SCADA system, comprise the data of multiple class, what relate in the present invention has two big classes.One class is that the electrical network static information refers to that mainly the annexation between the electrical network primary equipment is a topological relation information, and another kind of is that electrical network dynamic operation information is real-time remote measure and communication data.Static information can obtain by the artwork integrated technique of SCADA system, loads automatically when transformer station's mistake remote signalling scheduling filtration system program start.Multidate information then obtains automatically by the data flow mode, promptly should be with can instantaneously capturing and start corresponding handling procedure when the real-time telemetry remote signalling data of SCADA system change.
Because the SCADA system itself has the characteristics that run without interruption in real time, require in signal processing, to capture fully valuable information point.Simultaneously, signal processing system also should have intelligent signal and receive processing capacity, promptly after receiving the part remote signals, if in preparing to carry out the process of signal processing, receive new remote signals again, then signal receiving module should continue new signal is received into, add in the signal queue to be analyzed, the reasonable time-delay that is provided with in system (being set to 8 seconds at present) arrives when there is no new signal generation, just enabling signal analyzing and processing process.After the enabling signal analytic process, also must the assurance system continue to receive the signal that the SCADA system sends at any time simultaneously.In whole process, all need to guarantee the integrality and the reliability of data.
Also comprise remote signalling processing center module, it accepts the data that the real-time data acquisition module is gathered from the SCADA system, and it is handled.In the present invention, mainly pay close attention to remote measure and communication data in the SCADA system.In the remote measure and communication data, be divided into two kinds of information datas, promptly normal remote signals principle and false positive signal principle.In should using, normal signal 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.The false positive signal of remote measure and communication then is the mistake remote signals.
Comprise specialist processing system in the remote signalling processing center module remote measure and communication signal is carried out analyzing and processing, the analysis and judgement remote signalling is that normal remote signals still is the mistake remote signals.
The real-time data acquisition module can obtain whole real-time telemetry remote signalling data of SCADA among the present invention, and handle by remote signalling processing center module, but only for example the switch changed position signal of SCADA is analyzed in embodiments of the present invention, for other kinds of information, can other information be analyzed according to the present situation and the on-the-spot actual demand of SCADA system.
Information according to remote signalling processing center module needs are handled can be provided with a plurality of interfaces between remote signalling processing center module and real-time data acquisition module.As in the present embodiment only the switch changed position signal to SCADA analyze; then need between remote signalling processing center module and real-time data acquisition module, comprise switch changed position signal analysis interface; with transmitting switch displacement signal data; in order in needs, to analyze to guard signal and disconnecting link signal; then can between remote signalling processing center module and real-time data acquisition module, also comprise the guard signal analysis interface with transmission guard signal data, and disconnecting link signal analysis interface is with transmission disconnecting link signal data.If need analyze to other signals, can between remote signalling processing center module and real-time data acquisition module, a plurality of corresponding interface be set equally, can insert immediately when needed.
In remote signalling processing center module, comprise specialist processing system, as shown in Figure 2, specialist processing system comprises generally: comprise the signal analysis and processing knowledge base, can be called knowledge base traditionally, signal analyse block also can be called inference machine traditionally, man-machine interface can be called human-computer interaction interface traditionally.Below three chief components of specialist processing system are discussed in detail:
The signal analysis and processing 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.In the present invention, knowledge base comprises that the electrical network static knowledge is a network topology structure, and dynamic knowledge is the real-time power network service data, and the special knowledge of signal analysis and processing.Network topology structure knowledge depends on the artwork integrated technique of SCADA system, and the corresponding topological analysis module of loading is obtained automatically and should be used needed topological knowledge automatically when application start.Dynamic knowledge depends on the real time data acquisition module that should use, by the instantaneous renewal of data flow mode.Signal analysis and processing knowledge is this key issue in application, it is 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 etc., defined normal remote signalling rule and mistake remote signalling rule two rule-likes.
Signal analyse block 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.The SCADA system data that each displacement remote signalling is obtained is examined one by one with this two classes principle respectively, the rule numbers that record is satisfied.The last degree of correcting errors of how much coming gauge signal with the regular quantity that satisfies normal remote signalling and mistake remote signalling.Signal analyse block is exactly the analytic process module to signal in the present invention, and it is the breaker tripping and closing signal of switch and both regular processes of mating and searching for input signal.Analyze as other signal demands, after being input to remote signalling processing center module by the interface between remote signalling processing center module and the real-time data acquisition module, the normal signal set in information and the signal analysis and processing knowledge base and false positive signal rule are mated and search for, and draw coupling and Search Results.
Man-machine interface realizes the information exchange between specialist processing system and the user, 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.
When signal analyse block was mated the remote measure and communication data and searched for, it can be such that remote signals is handled:
The analysis of remote signals is divided into normal signal and analyzes principle and false positive signal analysis principle, has designed two rule-likes respectively.More clear for what express, rule is a hierarchical description.
For example, the rule of an identification normal signal may be as follows:
If certain equipment is charging equipment not, think that then all signals of this equipment are the normal debugging signal.
This rule being expressed as in rule base:
char*devcode＝GetSignalDev(char*sigcode)；
if(GetDevPower(devcode)＝＝0)；
SetSignalAttr(sigcode，1)；
Be explained as follows:
First behavior is by signal code picked up signal corresponding device because should with in all switch divide-shut brake signal all related with the signal corresponding device.
Second behavior obtains the charged attribute of this equipment, is output as 0 indication equipment and is charging equipment not, and promptly each side of equipment has tangible electrical isolation point.
The third line represents promptly that for to set property 1 to signal this signal is considered to normal signal.
More than three rules that regular statement is a higher level, and GetSignalDev (), GetDevPower () etc. points to the rule statements of next stage again, and the rule statements of next stage may obtain the rule that certain bar is determined, also may also need to point to the more rule statements of next stage.By the combination and the hierarchical search of rule statements, just can realize complicated reasoning from logic, picked up signal is whether attribute normally.
The analysis of switch remote signals is a comprehensive process, relate to the search and the analysis of power network topology relation, in the rational judgement of analysis and judgement, equipment operation of equipment state, factory station or equipment operation mode, the SCADA system to the Signal Processing mode, once with the matching relationship of secondary device etc.Emphasis wherein is the Partial Feature of the normal running of electrical network primary equipment, accident condition, abnormality and false positive signal.
Signal processing knowledge is divided into two classes, promptly normal remote signals principle and false positive signal principle.In the present invention, normal signal 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.
The analysis principle of normal signal has following a few class:
A has the equipment that overhauls attribute;
B, not charging equipment;
C, the period of remote signals go beyond the scope, and (each remote signals is corresponding record in database, and period is an attribute of this record.) (whether decision is adopted according to field condition);
D receives the switchgear of remote control (comprise remote control is carried out and the success of anti-school) item in advance;
E, switch changed position and switch failure tripping operation/SOE item exist simultaneously;
F, switch and protection actuating signal exist simultaneously;
G, the YC=0 of switch separating brake corresponding device, i.e. the value of remote measurement amount is 0; (remote measurement generally is meant the remote measurement value in the art, is exactly a remote measurement amount for 100 amperes as the current value of certain circuit.)
H, YC＞0 of switch combined floodgate corresponding device,
I,, satisfy self-defined normal remote signalling condition,
J, normal signal (at gear signal).
The above-mentioned once rule of following simple analysis.
1) has the equipment that overhauls attribute
The maintenance attribute of equipment is taken from the real-time storehouse of SCADA system, the real-time storehouse of just current repair apparatus.In the system of storehouse special real-time storehouse table cardrecord at the device flag board is being arranged in real time.Generate when the equipment of being recorded in of this table is listed, when delisted, delete automatically.The sign board of equipment has polytype, as:
Maintenance, ground connection, visiting, ration the power supply, operate a switch, protect that electricity, defective, someone are operated, relaying protection change etc.
Choose of the judgement of three class sign boards in the system, promptly overhaul board, ground connection board, visiting board as the overhaul of the equipments attribute.
2) charging equipment not
Not charged each the side tool lock that refers to equipment here is all at the equipment of open position, and the signal that equipment produced that is in electriferous state not 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, can each side of seeing slave unit search the power supply point in 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 (part journal, Serial OfEvents) exist simultaneously
If switch trip and two items of this switch failure tripping operation all exist simultaneously, illustrate that switch is an emergency stop valve trip.
This rule designs at the common technique of SCADA system.
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 S O E, 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 (remote terminal unit unit, Remote Terminal Unit) 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 on the SCADA dispatching platform, can carry out remote control 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 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 triggers by guard signal.This rule depends on the function of system to switch and the automatic coupling of guard signal, and promptly 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 is based on same consideration.
The analyzing and processing principle of wrong report remote signals:
A, YC＞0 of switch separating brake corresponding device,
B, the repeated signal displacement,
C satisfies self-defined mistake remote signalling condition,
D, with the simultaneously a large amount of remote signals displacements in factory station,
Mistake remote signalling treatment principle is:
When the YC of switch separating brake corresponding device＞0, if receive the switch sub-gate signal and obtain the YC of this switch correspondence still greater than 0 through after the time-delay of several seconds, though can not affirm fully that this signal is a false positive signal, can be with this switch motion record as one of reason of reporting remote signalling by mistake.
The 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, can mask by the maintenance attribute of equipment at same equipment.When power grid accident,, thereby but rational number of operations restriction can be set according to the rule of auto recloser filter out this class signal because also there is the repeatedly situation of folding of line switching in the existence of auto recloser.In the system number of operations is restricted to 4 times at present, promptly within a short period of time any switch the breaking-closing operating total degree can be above 4 times.The switch actuating signals that surpasses the reasonable operation number of times is all thought the false positive signal that transmits repeatedly.
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, discern 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.
Except the rule of above-mentioned judgement mistake remote signalling, the user can also be by the self-defined mistake of man-machine interface remote signalling rule, when remote measure and communication satisfies self-defining wrong report remote signalling rule, is judged as the mistake remote signalling.
As long as User Defined the wrong report remote signalling analysis rule, then system can analyze this rule automatically, the regular quantity with error signal when satisfying adds 1.
The external definition of rule.Except the principle of handling by internal rule storehouse mode definition signal, the present invention is also to exploring and study by the external maintenance of interface mode implementation rule.The external maintenance of rule is and diverse rule definition of internal rule and maintenance mode.It provides the interface mode based on dialog box, and regular attendant can be clear that the external rules that has defined in the system, and can make amendment to existing rule, also can formulate new signal processing rule easily.The same with internal rule, external rules is divided normal remote signalling rule and mistake remote signalling rule, can according to circumstances formulate flexibly.
The expression way of external rules is as follows:
The formulation of external rules is divided into aiming field and two parts of condition field:
The switch and the action attributes thereof of aiming field definition action, the actual switch actuating signal part during corresponding remote signalling is handled.Its expressive element comprises: factory station, component type, operational attribute.
The factory station can be certain concrete factory station, also can be whole factories stations.That is to say that external rules can define at the equipment at concrete factory station, the form that also can make general rule realizes shared this rule of equipment at whole factories station.
Component type comprises: " switch ", " line power switch ", " circuit is subjected to electric side switch ", " main transformer high-voltage switch gear ", " main transformer Medium voltage switch or circuit breaker ", " main transformer low tension switch ", " main transformer mains switch ", " main transformer is subjected to electric switch ", " capacitor switch ", " on-load switch ", " bus connection switch ", " by-pass switch ".
Operational attribute is switch separating brake/combined floodgate.
Condition field is the Rule of judgment at object component, and its expressive element comprises: factory's name of station, device type, device subclass, action attributes, logical symbol.
Factory's name of station and device type are with the definition and the using method of aiming field, and the device subclass type is on the basis of segmentation switchtype, and the association attributes of switch is classified again.Comprise: " on off state ", " both sides disconnecting link ", " ground connection disconnecting link ", " corresponding meritorious ", " corresponding idle ", " corresponding current ", " affiliated busbar voltage ", " prepared auto restart protection ", " reclosing protection " or the like.
Operational attribute is according to the difference of device subclass type and difference:
For switch tool, operational attribute is for divide/to close; For the remote measurement amount, operational attribute be greater than, less than, more than or equal to, smaller or equal to; For protection, operational attribute is action/involution.
Rule description is as follows:
The cooperation of condition field condexpress ion and aiming field goalexpress ion is such:
If condition field condexpression=true, then the switch object action attributes of aiming field goalexpression setting (normal remote signalling or wrong report remote signalling)=true.
Particularly, condition field is one or several subconditional combinations, and each sub-condition correspondence the attribute (state or numerical value) of a device object, between the sub-condition by with (and) or (or) logic association get up.
Illustrate:
(1) if (condition cond1=true﹠amp; Condition cond2=true),
Then aiming field goal 1=reports remote signalling by mistake.
(2) if ((condition cond1=true﹠amp; Condition cond2=true) || condition cond3=true),
The normal remote signalling of then aiming field goal2=.
Subconditional form is as follows:
The sub-attribute of ATTR of RTU factory station DEV equipment (both sides disconnecting link, corresponding remote measurement P, Q, I, corresponding protection etc.) FLAG equals (be not equal to, greater than, less than) VALUE (0/1, floating number).(annotating: (ATTR, FLAG, VALUE represent the code of " equipment, sign, value " these three Property Names respectively, all can describe this equipment with a lot of attributes when generally RTU is to an equipment modeling))
Just realized the external definition of signal analysis like this by the rule description of similar natural language.
The external rules that defines is kept at the signal analysis and processing knowledge base and comprises in the internal rule module library.Regular export interface is provided, strictly all rules need be derived when checking in the tabulation mode, can select this function the user.It is an opposite process that rule derives with the storage of rule, rale store will be converted to abstract symbolic representation with literal expression mode designed regular originally, and rule derives the form that the abstract symbol then will leave in the database is converted to textual description and shows rule statements.
The present invention comprises that also remote signalling shows and confirms module, will be that the signal post of normal remote signalling is designated as normal remote signals mark according to above-mentioned rule judgment, and the signal post that will be judged as the mistake remote signalling is designated as the mistake remote signals, plays the effect of filtering the mistake remote signals.Each switch tool displacement remote signalling is all analyzed and put sign normal or the wrong report remote signalling in native system, and the regular digital display that will meet normal remote signalling and wrong report remote signalling illustrates.Remote signalling record after the analysis shows that by remote signalling dialog box shows.Remote signalling shows and may be displayed on the switch tool remote signalling record that system captures during the program running in the dialog box and arrange in chronological order.Nearest remote signalling record is presented at the topmost of tabulation.In order to save memory space, system only keeps 500 nearest remote signalling records, and record more of a specified duration then is extruded the demonstration formation.The remote signalling record that system keeps can be by setting control.
Also comprise the history management module, preserve the analysis and judgement result of remote signals.When on remote signalling demonstration dialog box, showing after the analysis of switch tool actuating signal, be saved at once on the history server of SCADA, to guarantee not losing of data.System provides special interface for users query history record, and can confirm the remote signalling unconfirmed in the historical record.By the statistical function of remote signalling record, can also check the rate of false alarm of switch tool action class remote signals easily in addition.
Can also comprise among the present invention also comprising the repair apparatus administration module, it is connected with remote signalling processing center module, can correctly discern the equipment with maintenance attribute, and the signal that this kind equipment produced is made identification.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 promptly each side point of slave unit all can not find power supply point; (2), equipment has the ground connection disconnecting link or earth connection is a 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 discern then may cause interference to dispatcher's work, so should have the equipment of maintenance attribute with the correct identification of middle requirement, the various signals that this kind equipment produced are made identification.
In specification, discussed in detail, for the remote signalling analysis rule of repair apparatus.Should with in can obtain all current repair apparatus in the SCADA system by real-time storehouse mode, the storehouse table name is cardrecord in real time.All equipment with maintenance, ground connection, ad hoc inspection and repair attribute all are counted as repair apparatus and show by man-machine interface among the cardrecord.
In addition, the present invention also comprises the externally interface of issue of data.
As shown in Figure 3, utilize transformer station's mistake remote signalling dispatching terminal filter method of transformer station of the present invention mistake remote signalling dispatching terminal filtration system, may further comprise the steps:
1) the real-time data acquisition module is gathered electrical network static information and real-time remote measure and communication data message in the SCADA system;
2) specialist processing system judges that real-time remote measure and communication data message is that normal remote signals still is the mistake remote signals in the remote signalling processing center module analysis;
Divided for three steps carried out:
A. judge whether the equipment that signal is originated is repair apparatus, and the signal that this kind equipment produced is made identification.
B. with obtained SCADA system data, mate with normal signal of setting in the signal analysis and processing knowledge base and false positive signal rule and search for, and draw coupling and Search Results;
C. The above results is shown by man-machine interface.
3) remote signalling shows and confirms that the signal post that module will be judged as normal remote signalling is designated as normal remote signals mark, and the signal post that will be judged as the mistake remote signalling is designated as the mistake remote signals, filters the mistake remote signals.
4) preserve the analysis and judgement result of remote signals in the history management module.
Transformer station of the present invention mistake remote signalling dispatching terminal filtration system ensures the safe and stable operation of SCADA system from a plurality of aspects, the one, adopt independently application service type, operate in independently on the network node, it all is relatively independent using needed various database table, and should not send at present with the signal analysis result who produces to the SCADA server, be that the remote measure and communication seen 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.Its benefit is to 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.And system of the present invention is regular by normal signal and false positive signal two rule-like settings with signal analysis, satisfies 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, has increased external interface.
If should be with the required data owner real time data and the topology data of electrical network.These two classes data can directly obtain from the SCADA platform by the integrated technique of SCADA system, do not need at present to obtain with other system interface.Should with data processed result be the normal of switch divide-shut brake signal and mistake remote signalling attribute, only on this workstation nodes, show at present, as the auxiliary reference of remote signals attribute.Native system has considered that in design following possible data externally issue needs, thereby has reserved the externally interface of issue of data.
The present invention is by classifying to remote signalling wrong report situation common in the area power grid 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 reasonably normal remote signalling of a cover and wrong report remote signalling, thereby from a large amount of remote signals, analyze possible false positive signal.And, explore signal analysis rule base, and realize high efficiency reasoning control to knowledge base based on the expert knowledge library mode according to the characteristics of remote signals and the operation characteristic of electric power system.External interface of the present invention and interpersonal interface energy provide necessary explanation and manual intervention means for the signal analysis result who obtains.
Transformer station of the present invention mistake remote signalling dispatching terminal filtration system and method can be discerned factory's station wrong report remote signals automatically, can correctly discern most false positive signal, on the Signal Pretreatment to the SCADA system great role is arranged, can types of applications provide more reliable and pure signal source, improve the accuracy of system signal, improve the efficient of dispatching of power netwoks.
Claims (10)
1. transformer station's mistake remote signalling dispatching terminal filtration system is characterized in that, is connected with the SCADA system, and comprises with lower module:
The real-time data acquisition module is gathered electrical network static information and real-time remote measure and communication data message in the SCADA system;
Remote signalling processing center module can obtain SCADA system whole real-time telemetry remote signalling data, and comprises the analysis and judgement remote signalling being that normal remote signals still is the specialist processing system of mistake remote signals;
Remote signalling shows and confirms module, and the signal post that is judged as normal remote signalling is designated as normal remote signals mark, and the signal post that will be judged as the mistake remote signalling is designated as the mistake remote signals, plays the effect of filtering the mistake remote signals;
The history management module, the analysis and judgement result of preservation remote signals;
Described specialist processing system comprises the signal analysis and processing knowledge base, this signal analysis and processing knowledge base defines normal remote signalling rule and mistake remote signalling rule, also comprise signal analyse block, with obtained SCADA system data, mate with normal signal of setting in the signal analysis and processing knowledge base and false positive signal rule and search for, and draw coupling and Search Results, and also comprise man-machine interface, realize the information exchange between specialist processing system and the user.
2. transformer station according to claim 1 mistake remote signalling dispatching terminal filtration system, it is characterized in that, also comprise the repair apparatus administration module, it is connected with remote signalling processing center module, can correctly discern equipment, the signal that this kind equipment produced is made identification with maintenance attribute.
3. transformer station according to claim 2 mistake remote signalling dispatching terminal filtration system, it is characterized in that, comprise the real-time storehouse of current repair apparatus in the SCADA system, the equipment that comprises all maintenance, ground connection or ad hoc inspection and repair attribute, the real-time storehouse of this repair apparatus is connected with the repair apparatus administration module, with the repair apparatus message transmission in the repair apparatus administration module.
4. transformer station according to claim 1 mistake remote signalling dispatching terminal filtration system, it is characterized in that, the signal analysis and processing knowledge base that defines normal remote signalling rule and mistake remote signalling rule comprises the internal rule module library, define normal remote signalling rule and mistake remote signalling rule in internal system, also comprise the external rules module, carry out normal remote signalling and mistake remote signalling rule by the outer interface input.
5. transformer station according to claim 1 mistake remote signalling dispatching terminal filtration system; it is characterized in that; comprise the switch changed position signaling interface that is used for transmitting switch displacement signal data between remote signalling processing center module and the real-time data acquisition module; be used to transmit guard signal Data Protection signaling interface, and the disconnecting link signaling interface that is used to transmit the disconnecting link signal data.
6. transformer station according to claim 5 mistake remote signalling dispatching terminal filtration system is characterized in that, also comprises a plurality of reservation analysis interface between remote signalling processing center module and the real-time data acquisition module, in order to multiple signal data in the transmission SCADA system.
7. transformer station's mistake remote signalling dispatching terminal filter method is characterized in that, may further comprise the steps:
1) the real-time data acquisition module is gathered electrical network static information and real-time remote measure and communication data message in the SCADA system;
2) specialist processing system judges that real-time remote measure and communication data message is that normal remote signals still is the mistake remote signals in the remote signalling processing center module analysis;
3) remote signalling shows and confirms that the signal post that module will be judged as normal remote signalling is designated as normal remote signals mark, and the signal post that will be judged as the mistake remote signalling is designated as the mistake remote signals, filters the mistake remote signals.
8. transformer station according to claim 7 mistake remote signalling dispatching terminal filter method is characterized in that step 2) in may further comprise the steps:
A. with obtained SCADA system data, mate with normal signal of setting in the signal analysis and processing knowledge base and false positive signal rule and search for, and draw coupling and Search Results;
B. The above results is shown by man-machine interface.
9. according to claim 7 or 8 described transformer station mistake remote signalling dispatching terminal filter methods, it is characterized in that, after step 3), comprise step 4): the analysis and judgement result who preserves remote signals in the history management module.
10. transformer station according to claim 8 mistake remote signalling dispatching terminal filter method is characterized in that, also comprises a step before the step a: judge whether the equipment that signal is originated is repair apparatus, and the signal that this kind equipment produced is made identification.
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| CN2009100576975A CN101989938A (en) | 2009-08-04 | 2009-08-04 | Filtration system and method of mis-telecommand scheduling end of transformer substation |
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| CN2009100576975A CN101989938A (en) | 2009-08-04 | 2009-08-04 | Filtration system and method of mis-telecommand scheduling end of transformer substation |
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