CN109271378A - A method of filtering scheduling system signal is frequently alarmed - Google Patents
A method of filtering scheduling system signal is frequently alarmed Download PDFInfo
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- CN109271378A CN109271378A CN201811137845.XA CN201811137845A CN109271378A CN 109271378 A CN109271378 A CN 109271378A CN 201811137845 A CN201811137845 A CN 201811137845A CN 109271378 A CN109271378 A CN 109271378A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
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Abstract
The present invention relates to signal filtration art, in particular to a kind of method that filtering scheduling system signal is frequently alarmed.Including data reception module, data preparation module, misinformation discrimination module, data filtering module；The data reception module is for receiving remote signals；The data preparation module is used to for remote signals being classified as the signal of breaker, disconnecting switch, guard mode；The misinformation discrimination module is used to carry out misinformation signal judgement according to the classification of remote signals；The data filtering module is for filtering misinformation signal.The method that a kind of filtering scheduling system signal of the invention is frequently alarmed can filter the remote signalling caused due to contact chatter, strong electromagnetic and transmission channel quality and miss hair wrong report information by data reception module, the cooperation of data preparation module, misinformate discrimination module, data filtering module.
Description
Technical field
The present invention relates to signal filtration art, in particular to a kind of method that filtering scheduling system signal is frequently alarmed.
Background technique
With going deep into for Unattended substation work, local transformer substation switch, disconnecting link position, relay protection action situation
Etc. remote signals be just particularly important, or even the safe operation that power grid will be directly related to.
Accidentally hair wrong report has great influence to dispatching of power netwoks for remote signalling.Firstly, accidentally hair false positive signal can be to dispatch value class people
Member causes greatly to interfere, and when mistaking signal occurs, scheduling operator on duty has to take time stoning to switch, disconnecting link, guarantor
The virtual condition of the quantity of states such as shield, to determine the authenticity of alarm.These checking works have to pass through substation management institute personnel and arrive
Scene is checked, and if it is false alarm caused by mistaking signal, necessarily will cause the waste of human and material resources；Secondly as
Accidentally hair remote signals make the main station side of dispatch automated system frequently issue audible alarm, can then reduce management and running for a long time
The vigilance of personnel, in case of genuine accident occurs, it is possible to the accident treatment time can be delayed, to influence scheduling automated
The reliability and operation ratio of system；Again, since mistaking signal is frequent, automated system main station side shape in alarm database is transferred
At numerous meaningless records, these records occupy a large amount of computer resource and cause to consume and waste, and the later period needs to unite
When counting, truthful data can not be counted.
The remote signals of the position of the switch are from its auxiliary node mostly, firstly, switch prolonged use, it can be to auxiliary
It helps the physical action of node to cause slight crack and gap, when carrying out switch motion, returns and generate certain vibration, so that auxiliary
Node not to because or poor contact, also, the switch element used does not use stabilization measure, therefore, cause remote signalling
The wrong report of signal；Secondly, contact in the process of running, receives the influence of the factors such as environment, auxiliary node can be oxidized or
It is dirt etc., so that in contact off and on, remote signalling information content is caused ceaselessly to be shaken in a short time；Finally, working as signal
When the DC power supply of relay fluctuates, caused the secondary circuit of signal relay remote signals occur malfunction or
Person is shake.
Acquisition circuit is among the high voltage environment of substation, when the magnetic field of AC field changes, just
It will receive the interference of strong electromagnetic wave, it is serious to affect weak signal, result in the wrong report of remote signals.
Due to the influence of current remote motion signal transmission channel quality, so that the correct remote signals of substation are being transferred to
During main station side, signal frequency deviates and frequency, phenomena such as electricity frequency is unstable, to cause in modem procedue
Error code is excessively high, and error handle is caused to cause mal-telecommunic ation.
Summary of the invention
It is an object of the invention to: provide a kind of method for frequently alarming of filtering scheduling system signal, solve due to
Wrong report problem is accidentally sent out in remote signalling caused by contact chatter, strong electromagnetic and transmission channel quality.
The technical solution adopted by the invention is as follows:
A kind of method frequently alarmed of filtering scheduling system signal includes data reception module, data preparation module, misinformation
Discrimination module, data filtering module；
The data reception module is for receiving remote signals；
The data preparation module is used to for remote signals being classified as the signal of breaker, disconnecting switch, guard mode；
The misinformation discrimination module is used to carry out misinformation signal judgement according to the classification of remote signals；
The data filtering module is for filtering misinformation signal.
The method that a kind of filtering scheduling system signal of the invention is frequently alarmed passes through data reception module, data preparation mould
The cooperation of block, misinformate discrimination module, data filtering module, can filter due to contact chatter, strong electromagnetic and transmission channel
Accidentally hair reports information by mistake for the remote signalling that quality causes, and receives the remote signals from each equipment point by data reception module and is transmitted to
Data preparation module, remote signals refer to the intake of telemechanical communication data, for example, breaker or disconnecting switch point/conjunction state,
Protect movement/involution of signal, the investment of AGC/AVC function/exit；Remote signals are classified as by data preparation module
The signal of breaker, disconnecting switch, guard mode, and classification information is transmitted to wrong report erroneous judgement module, mould is judged convenient for wrong report
Root tuber carries out misinformation signal judgement according to the classification of remote signals, directly influences the whole efficiency of wrong report judgment module, only will
Remote signals are arranged according to classification, reduce the workload of wrong report judgment module, to further increase misinformation signal judgement
Efficiency；Judged according to classified remote signalling information by signal of misinformating respectively according to pre-set judgment method to having classified
Remote signalling information carry out misinformation judgement, and by the cooperation with data filtering module, the misinformation signal judged is filtered,
False alarm caused by mistaking signal is avoided, the waste of human and material resources is caused, while the precision of alert data can be improved, is avoided
It transfers automated system main station side and forms numerous meaningless records in alarm database, and then it is empty to save computer stored
Between, and when the later period needs statistical data, statistics truthful data is provided.
Further, the data reception module passes through SCADA system for breaker, the letter of disconnecting switch, guard mode
Number collect, SCADA (Supervisory Control And Data Acquisition) system, i.e. data acquisition with monitoring control
System processed, SCADA system are computer-based DCS and power automation monitoring system, are now to answer in the power system
With the most extensively, technology development is also the most mature, can be efficiently completed to the signal of breaker, disconnecting switch, guard mode
It collects, and has the function of logout, historical storage.
Further, the misinformation discrimination module includes contact chatter judging unit, strong electromagnetic judging unit, caching
Shake, surrounding strong electromagnetic wave influence, transmission channel shadow of the main reason for judging unit, remote signals are misinformated for remote signals
It rings, passes through contact chatter judging unit, strong electromagnetic judging unit, the cooperation for caching three units of judging unit, difference needle
Misinformation signal judgement is made to the main reason for above-mentioned remote signals misinformation, more misinformation signal is judged, increases judgement
Precision.
Further, the judgment method of the contact chatter judging unit includes trembling by the shake waveform diagram of switch
Dynamic duration judgement, when contact chatter, the shake waveform diagram of switch can occur continuously to fluctuate in a short time, pass through image
Identification technology identification switch opens the shake waveform diagram of close stage short time, if checking what generation in the short time was continuously fluctuated
Feature is judged as misinformation.
Further, the judgment method of the strong electromagnetic judging unit includes real by using electromagnetic interference detector
When detect surrounding electromagnetism intensity value, the upper limit value of the normal electromagnetism intensity value of each node of electric system is set as threshold value, will have been visited
The electromagnetism intensity value and threshold comparison of survey judge to misinformate due to electromagnetic interference when being higher than threshold value.
Further, the judgment method of the caching judging unit includes caching the instantaneous signal of guard mode,
Judge whether the instantaneous signal of guard mode will do it involution within the preset time, due to contact bounce during switch division
It will appear instantaneous protection category information, such as: control loop template, " the device alarm " of device generation of particular type etc. lead to
Often referred to as prompting message, this category information act reset at the appointed time and are completed, and are judged as misinformation.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. the method that a kind of filtering scheduling system signal of the invention is frequently alarmed passes through data reception module, data preparation
The cooperation of module, misinformate discrimination module, data filtering module can be filtered due to contact chatter, strong electromagnetic and transmission letter
Accidentally hair reports information by mistake for the remote signalling that road quality causes, and avoids false alarm caused by mistaking signal, causes the waste of human and material resources,
The precision that alert data can be improved simultaneously avoids transfer automated system main station side from forming numerous be not intended in alarm database
Justice record, and then computer stored space is saved, and when the later period needs statistical data, provide statistics truthful data.
2. the misinformation discrimination module for the method that a kind of filtering scheduling system signal of the invention is frequently alarmed includes that contact is trembled
The main reason for dynamic judging unit, strong electromagnetic judging unit, caching judging unit, remote signals are misinformated is remote signals
Shake, surrounding strong electromagnetic wave influence, transmission channel influences, and by contact chatter judging unit, strong electromagnetic judging unit, delay
The cooperation of three units of judging unit is deposited, makes misinformation signal judgement for the main reason for above-mentioned remote signals misinformation respectively,
Increase, which judges precision, more to be judged to misinformation signal.
3. the method data reception module that a kind of filtering scheduling system signal of the invention is frequently alarmed passes through SCADA system
By breaker, the signal collection of disconnecting switch, guard mode, SCADA (Supervisory Control And Data
Acquisition the acquisition of) system, i.e. data and supervisor control, SCADA system are computer-based DCS and electricity
Power Automatic monitoring systems are now to be most widely used in the power system, and technology development is also the most mature, can be efficiently completed
Collection to the signal of breaker, disconnecting switch, guard mode, and have the function of logout, historical storage.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Embodiment one
A kind of method frequently alarmed of filtering scheduling system signal includes data reception module, data preparation module, misinformation
Discrimination module, data filtering module；
The data reception module is for receiving remote signals；
The data preparation module is used to for remote signals being classified as the signal of breaker, disconnecting switch, guard mode；
The misinformation discrimination module is used to carry out misinformation signal judgement according to the classification of remote signals；
The data filtering module is for filtering misinformation signal.
The method that a kind of filtering scheduling system signal of the invention is frequently alarmed passes through data reception module, data preparation mould
The cooperation of block, misinformate discrimination module, data filtering module, can filter due to contact chatter, strong electromagnetic and transmission channel
Accidentally hair reports information by mistake for the remote signalling that quality causes, and receives the remote signals from each equipment point by data reception module and is transmitted to
Data preparation module, remote signals refer to the intake of telemechanical communication data, for example, breaker or disconnecting switch point/conjunction state,
Protect movement/involution of signal, the investment of AGC/AVC function/exit；Remote signals are classified as by data preparation module
The signal of breaker, disconnecting switch, guard mode, and classification information is transmitted to wrong report erroneous judgement module, mould is judged convenient for wrong report
Root tuber carries out misinformation signal judgement according to the classification of remote signals, directly influences the whole efficiency of wrong report judgment module, only will
Remote signals are arranged according to classification, reduce the workload of wrong report judgment module, to further increase misinformation signal judgement
Efficiency；Judged according to classified remote signalling information by signal of misinformating respectively according to pre-set judgment method to having classified
Remote signalling information carry out misinformation judgement, and by the cooperation with data filtering module, the misinformation signal judged is filtered,
False alarm caused by mistaking signal is avoided, the waste of human and material resources is caused, while the precision of alert data can be improved, is avoided
It transfers automated system main station side and forms numerous meaningless records in alarm database, and then it is empty to save computer stored
Between, and when the later period needs statistical data, statistics truthful data is provided.
Embodiment two
On the basis of above embodiments, the data reception module by SCADA system by breaker, disconnecting switch,
The signal collection of guard mode, SCADA (Supervisory Control And Data Acquisition) system, i.e. data
Acquisition and supervisor control, SCADA system are computer-based DCS and power automation monitoring system, are present
It is most widely used in electric system, technology development is also the most mature, can be efficiently completed to breaker, disconnecting switch, protection
The collection of the signal of state, and have the function of logout, historical storage.
The misinformation discrimination module includes contact chatter judging unit, strong electromagnetic judging unit, caches judging unit,
The main reason for remote signals are misinformated influences for the shake of remote signals, surrounding strong electromagnetic wave, transmission channel influences, and passes through contact
Judging unit, strong electromagnetic judging unit, the cooperation for caching three units of judging unit are shaken, is believed respectively for above-mentioned remote signalling
Number misinformation the main reason for make misinformation signal judgement, more to misinformation signal judge, increase judge precision.
The judgment method of the contact chatter judging unit includes when being continued by the shake of the shake waveform diagram of switch
Between judge, when contact chatter, the shake waveform diagram of switch can occur continuously to fluctuate in a short time, pass through image recognition technology
Identification switch opens the shake waveform diagram of close stage short time, if checking the feature for occurring continuously to fluctuate in the short time, sentences
Break as misinformation.
The judgment method of the strong electromagnetic judging unit includes by using electromagnetic interference detector real-time detection week
Electromagnetism intensity value is enclosed, the upper limit value of the normal electromagnetism intensity value of each node of electric system is set as threshold value, by detected electromagnetism
Intensity value and threshold comparison judge to misinformate due to electromagnetic interference when being higher than threshold value.
The judgment method of the caching judging unit includes caching the instantaneous signal of guard mode, judges to protect shape
Whether the instantaneous signal of state will do it involution within the preset time, since contact bounce will appear instantaneously during switch division
Protection category information, such as: the device " the device alarm " etc. that generates of control loop template, particular type, normally referred to as wink
When information, this category information act at the appointed time reset be completed, be judged as misinformation.
The above, only the preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, it is any
Those skilled in the art within the technical scope disclosed by the invention, can without the variation that creative work is expected or
Replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Subject to fixed protection scope.
Claims (6)
1. a kind of method that filtering scheduling system signal is frequently alarmed, it is characterised in that: including data reception module, data preparation
Module, misinformation discrimination module, data filtering module；
The data reception module is for receiving remote signals；
The data preparation module is used to for remote signals being classified as the signal of breaker, disconnecting switch, guard mode；
The misinformation discrimination module is used to carry out misinformation signal judgement according to the classification of remote signals；
The data filtering module is for filtering misinformation signal.
2. the method that a kind of filtering scheduling system signal according to claim 1 is frequently alarmed, it is characterised in that: the number
Pass through SCADA system for breaker, the signal collection of disconnecting switch, guard mode according to receiving module.
3. the method that a kind of filtering scheduling system signal according to claim 1 is frequently alarmed, it is characterised in that: the mistake
Passing discrimination module includes contact chatter judging unit, strong electromagnetic judging unit, caching judging unit.
4. the method that a kind of filtering scheduling system signal according to claim 1 is frequently alarmed, it is characterised in that: described
The judgment method of contact chatter judging unit includes being judged by the shake duration of the shake waveform diagram of switch.
5. the method that a kind of filtering scheduling system signal according to claim 1 is frequently alarmed, it is characterised in that: described strong
The judgment method of electromagnetic interference judging unit includes by using electromagnetism intensity value around electromagnetic interference detector real-time detection.
6. the method that a kind of filtering scheduling system signal according to claim 1 is frequently alarmed, it is characterised in that: described slow
The judgment method for depositing judging unit includes caching the instantaneous signal of guard mode, judges that the instantaneous signal of guard mode exists
Whether will do it involution in the preset time.
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| CN201811137845.XA CN109271378A (en) | 2018-09-28 | 2018-09-28 | A method of filtering scheduling system signal is frequently alarmed |
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Cited By (1)
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