CN105116291B - A kind of fault diagnosis system and method based on operation of power networks stable state monitoring information - Google Patents

Abstract

The invention discloses a kind of fault diagnosis system and method based on operation of power networks stable state monitoring information, system includes data-interface, data receiver pretreatment, equipment state in-service monitoring, signal analysis integration, fault logic diagnosis and fault warning control totally six big module, each intermodule is common to complete powernet fault diagnosis by function allocation and mutually collaboration；Diagnostic method is to obtain operation of power networks stable state monitoring information from power grid regulation central monitor system, initial survey is carried out to information according to default filtering rule, and it is organized into primary equipment accident analysis data message, sampling, mutation and topologies change are measured in combination with primary equipment, using Local network topology analysis method and the method for diagnosing faults of logic-based, on-line fault diagnosis is realized.Diagnostic system real-time provided by the invention is good, diagnostic area is comprehensive, and diagnostic method realizes simple and flexible, has wide applicability and adaptability.

Description

A kind of fault diagnosis system and method based on operation of power networks stable state monitoring information

Technical field

The present invention relates to fault diagnosis, more particularly to a kind of fault diagnosis system based on operation of power networks stable state monitoring information System and method, belong to electric network failure diagnosis technical field.

Background technology

In existing various electric network failure diagnosis system and methods, mostly still using the fault data file of simulation or from electricity In network energy management system manually before and after export failure in a period of time off-line data file mode, be electric network failure diagnosis system System provides fundamental analysis data, carries out the fault diagnosis under off-line mode, this method is because can not effectively obtain fault diagnosis system All kinds of real time datas before and after electric network fault needed for system, so as to which requirement of the fault diagnosis for real-time can not be met.It is in addition, each Though kind of a method possesses higher theoretical foundation, due to the assumed condition involved by inside is excessive and test and running environment excessively Idealization, the fault-tolerance and adaptability of algorithm are all difficult to ensure that, therefore also rest on theoretical research stage mostly, can not meet event Hinder the requirement of diagnostic utility.Due to, there is above-mentioned deficiency, leading to not in existing electric network failure diagnosis system and method In actual power grid regulation central monitor system powernet fault diagnosis is carried out with these system and method.

With the horizontal continuous lifting of power system dispatching automation technique and State Grid Corporation of China's items Scheduling Core business Iterative method, power grid regulation centers at different levels are generally equipped with power network supervision and control system, realize and Power System Steady-state is monitored Synthetical collection, storage and the unified access of data message；Operation of power networks stable state monitoring information is because with above sending, speed is fast, easily obtains Take, monitor the features such as broad covered area, can be to realize that the failure based on operation of power networks stable state monitoring information is examined in regulation and control central side It is disconnected provide necessary to data message, carrying out on-line fault diagnosis using it has that data stabilization, real-time are good, diagnostic area is comprehensive The advantages that, and due to independent of input source of the information that other each application modules provide in system as fault diagnosis, because This required data is relatively independent reliable.

Based on above mentioned problem, how the real-time and reliability possessed using operation of power networks stable state monitoring information itself, carry For a kind of electric network failure diagnosis system and method based on operation of power networks stable state monitoring information, existing system and method are overcome not Foot, is those skilled in the art's technical issues that need to address.

The content of the invention

It is a primary object of the present invention to overcome deficiency of the prior art, there is provided one kind is supervised based on operation of power networks stable state The fault diagnosis system and method for information are controlled, realizes powernet fault diagnosis, system data is reliable and stable, real-time is good, examines Disconnected result is accurate, and diagnostic area is comprehensive, and system operation is quick, flexible, and the system Construction cycle is short, has the utilization in industry Value.

In order to achieve the above object, the technical solution adopted in the present invention is：

A kind of fault diagnosis system based on operation of power networks stable state monitoring information provided by the invention, including data-interface mould Module, fault logic diagnostic module are integrated in block, data receiver pretreatment module, equipment state in-service monitoring module, signal analysis With fault warning control module, it is defeated that the data interface module includes Real-time data interface, primary equipment data-interface and failure Outgoing interface.

Wherein, the Real-time data interface is used to receive and monitored from power grid regulation central monitor system operation of power networks stable state Real time data information in information, the primary equipment data-interface, which is used to obtain, comes from power grid regulation central monitor system power network The primary equipment data message in stable state monitoring information is run, the failure output interface is used to receive to be controlled from fault warning The fault diagnosis result of module output, and fault diagnosis result is sent to monitoring alarm interface.

Moreover, the data receiver pretreatment module passes through Real-time data interface and power grid regulation central monitor system phase Even, for carrying out initial survey according to filtering rule to real time data information, by filtering out invalid warning information, retaining effectively alarm letter Breath, effective warning information is sent to signal analysis and integrates module；The equipment state in-service monitoring module passes through primary equipment Data-interface is connected with power grid regulation central monitor system, for carrying out the statistics of topologies change to primary equipment, measuring The judgement of sampling and the mutation of information, while sample information write-in binary data file will be measured, by topologies change and Measure abrupt information write-in Data buffer.

Meanwhile the signal analysis is integrated module and is connected by Data buffer with fault logic diagnostic module, for inciting somebody to action Effective warning information is organized into primary equipment accident analysis data message and exported to Data buffer, for fault logic diagnostic module Carry out data call；The fault logic diagnostic module, which is used to extract the topologies change in Data buffer and measured, to be mutated Measurement sample information in information, binary data file, using Local network topology analysis method, and combine logic-based Method for diagnosing faults carries out inline diagnosis and obtains fault diagnosis result, and diagnostic result is exported to fault warning control module；Institute State fault warning control module by failure output interface with power grid regulation central monitor system to be connected, for verifying fault diagnosis As a result whether meet to alert control range, by the fault diagnosis result for meeting control range according to control mode is alerted, through failure Output interface is sent to the monitoring alarm interface of power grid regulation central monitor system, carries out man-machine interface displaying.

The fault diagnosis system of the present invention is further arranged to：The real time data information includes passing through Operation of Electric Systems Switch remote signalling that 104 stipulations transmit in real time displacement and SOE information, the protection transmitted in real time by the stipulations of Operation of Electric Systems 104 Remote signalling conjugates and SOE information, operation of power networks and operation information；The operation of power networks and operation information include equipment and are listed, switch Remote control, manually suppress, suppress information, AVC (power network automatism voltage control) action message；The primary equipment data message includes Power network primary equipment topology information and power network primary equipment measure sample information.

The present invention also provides a kind of method for diagnosing faults based on operation of power networks stable state monitoring information, comprises the following steps：

1) by Real-time data interface receiving real-time data information and send to data receiver pretreatment module, connect by data Receive pretreatment module and initial survey, according to default filtering rule, the invalid warning information of automatic fitration, guarantor are carried out to real time data information Effect warning information is left, effective warning information is sent to signal analysis and integrates module；

2) primary equipment data message is obtained by primary equipment data-interface and sent to equipment state in-service monitoring mould Block, by the topologies change of equipment state in-service monitoring module real-time statistics primary equipment, carry out measuring sampling and mutation Judge, and sample information write-in binary data file will be measured, by topologies change and measure abrupt information write-in data Buffer pool；

3) module is integrated by signal analysis and analysis and integration processing is carried out to effective alarm signal, integrated by signal analysis Module is ranked up from small to large according to the sequencing of signal forming time, and is automatically extracted by gap periods, is integrally formed Primary equipment accident analysis data message, primary equipment accident analysis data message is sent to Data buffer；

4) the primary equipment accident analysis data message in Data buffer is automatically extracted by fault logic diagnostic module, is opened up Flutter structure change and measure the measurement sample information in abrupt information, and binary data file, using Local network topology Analysis method, and the method for diagnosing faults of logic-based is combined, on-line fault diagnosis is realized, obtains fault diagnosis result；It is described The method for diagnosing faults of logic-based includes Circuit fault diagnosis logic, main transformer diagnosis logic and bus-bar fault diagnosis and patrolled Volume；

5) fault diagnosis result is obtained from fault logic diagnostic module by fault warning control module, verifies fault diagnosis knot Whether fruit meets to alert control range, and using the fault diagnosis result information for meeting control range as fault warning information, presses According to alarm control mode, sent through failure output interface to the monitoring alarm interface of power grid regulation central monitor system, enter pedestrian Machine showing interface, the fault warning information of displaying mainly include that fault time, faulty equipment, failure be separate, reclosing action feelings Condition.

The diagnostic method of the present invention is further arranged to：Filtering rule in the step 1) includes, the alarm suppression that is listed, Full data judging, switch alarm suppression, day signalizing activity number, switch manual remote control, AVC control switch, repair schedule, people automatically Work rule setting and suppression alarm zone of responsibility.

The diagnostic method of the present invention is further arranged to：The equipment state in-service monitoring module amount of progress in the step 2) Surveying sampling and measuring used configuration parameter when mutation judges includes, maximum size, lower bound of capacity, the voltage class upper limit, electricity Press level lower end, the plant stand voltage class upper limit, plant stand voltage class lower limit, plant stand type, plant stand title, device type, equipment Title, measurement parameters, whether be mutated, be mutated setting, whether whole minute judge, mutation Value Types, mutation value and mutation drift Value.

The diagnostic method of the present invention is further arranged to：Local network topology analysis method in the step 4) includes step Suddenly have：

Topology search 4-1) is carried out according to switch remote signalling/SOE, obtains once setting with the suspected fault that step switch is associated Standby set, is named as set A；

4-2) by topologies change data, state is obtained from uncharged primary equipment set is charged to, is named as Set B；

4-3) by obtaining set A and set B union, i.e. A ∪ B, set C, i.e. C=A ∪ B are obtained；By in set C Data input to the method for diagnosing faults functional module of logic-based in fault logic diagnostic module as input data source.

The diagnostic method of the present invention is further arranged to：Circuit fault diagnosis logic in the step 4) includes step Have：

Plant stand accident 4a-1) based on the switch motion of circuit side, the protection act of side, side always acts these three Part carries out logistic diagnosis；When under the precondition for meeting the switch motion of circuit side, if meeting the protection act of side, side Plant stand accident always act any one condition in the two conditions, you can judge line failure；

4a-2) based on the switch motion of circuit side, the switch motion of opposite side the two conditions progress logistic diagnosis；When same When meeting the switch motion of circuit side, the two conditions of the switch motion of opposite side, you can judge line failure；

4a-3) based on the switch motion of circuit side, the protection act of opposite side, opposite side plant stand accident always act this three Individual condition carries out logistic diagnosis；When under the precondition for meeting the switch motion of circuit side, if meeting, the protection of opposite side is moved Work, the plant stand accident of opposite side always act any one condition in the two conditions, you can judge line failure.

The diagnostic method of the present invention is further arranged to：Main transformer diagnosis logic in the step 4) is including main transformer The diagnosis logics become of volume two and main transformer is the diagnosis logics become of volume three；

The main transformer is that the diagnosis logic of the changes of volume two has including step：

These three always 4b-1) are acted based on plant stand accident where the action of main transformer high side switch, main transformer protection action, main transformer Condition carries out logistic diagnosis；When under the precondition for meeting the action of main transformer high side switch, if meeting, main transformer protection acts, be main Plant stand accident where becoming always acts any one condition in the two conditions, you can judges that main transformer breaks down；

Mutation, master 4b-2) are measured based on the action of main transformer high side switch, main transformer low-pressure side switch motion, main transformer high-pressure side Become high-pressure side and measure sampled value this four conditions that are zeroed and carry out logistic diagnosises；When meeting main transformer high side switch action, main simultaneously During this four conditions that low pressure side switch motion, main transformer high-pressure side measure mutation, main transformer high-pressure side measurement sampled value is zeroed, you can Judge that main transformer breaks down；

The main transformer is that the diagnosis logic of the changes of volume three has including step：

4b-3) based on where the action of main transformer high side switch, the switch motion of main transformer medium voltage side, main transformer protection action, main transformer Plant stand accident always acts this four conditions and carries out logistic diagnosis；When meeting main transformer high side switch action or main transformer medium voltage side open Under the precondition of pass action, if meeting, plant stand accident where main transformer protection action, main transformer always acts appointing in the two conditions One condition of meaning, you can judge that main transformer breaks down；

4b-4) based on main transformer high side switch action, main transformer it is medium/low pressure side switch motion, main transformer high-pressure side measure mutation, Main transformer high-pressure side measures sampled value this four conditions that are zeroed and carries out logistic diagnosises；When simultaneously meet main transformer high side switch action, This four conditions that the medium/low pressure side switch motion of main transformer, main transformer high-pressure side measure mutation, main transformer high-pressure side measurement sampled value is zeroed When, you can judge that main transformer breaks down.

The diagnostic method of the present invention is further arranged to：Bus-bar fault diagnostic logic in the step 4) includes step Have：

This always 4c-1) is acted based on plant stand accident where the connecting valve action of bus institute, bus protection action signal, bus Three conditions carry out logistic diagnosis；When under the precondition for meeting the connecting valve action of bus institute, if meeting, bus protection is moved Plant stand accident where making signal, bus always acts any one condition in the two conditions, you can judges that bus breaks down；

Mutation 4c-2) is measured based on the connecting valve action of bus institute, busbar voltage, busbar voltage measurement sampled value is zeroed this Three conditions carry out logistic diagnosis；When meeting that the action of bus institute connecting valve, busbar voltage measure mutation, busbar voltage amount simultaneously Survey sampled value be zeroed these three conditions when, you can judge that bus breaks down.

The diagnostic method of the present invention is further arranged to：Alarm control range and alarm control mode in the step 5) Using the control field of user preset, the control field includes equipment upper voltage limit, equipment lower voltage limit, zone name, factory Upper voltage limit, plant stand lower voltage limit, plant stand type, plant stand title, device type and the device name of standing alert scope word for totally nine Section, and whether alert, whether voice, whether push away picture and whether on send totally four alarm control mode field.

Compared with prior art, the invention has the advantages that：

1st, on the basis of existing power grid regulation central monitor system, design and create fault diagnosis system, pass through data Interface module, data receiver pretreatment module, equipment state in-service monitoring module, signal analysis integration module, fault logic are examined Disconnected module and fault warning control module are total to the setting of six functionses module and mutually shared out the work and helped one another, and realize that powernet failure is examined It is disconnected；Based on the operation of power networks stable state monitoring information in power grid regulation central monitor system, the data message transfer rate because needed for is fast, Easily obtain, broad covered area, so as to realize that on-line fault diagnosis have that data are reliable and stable, real-time is good, diagnostic area is comprehensively accurate Many advantages, such as true.

2nd, by the setting of the special Data buffer and high speed, the quick processing, storage, flexible tune of system data are realized With and interactive access；And by the way of it will measure sample information write-in binary data file, the real-time of system is substantially improved Property, meet storage and the requirements for access for measuring sampled data inside diagnostic system to primary equipment high-frequency.

3rd, the construction of fault diagnosis system is carried out based on existing power grid regulation central monitor system, builds fault diagnosis system The real-time and primary equipment data message that system can provide according to operation of power networks stable state monitoring information before and after failure, realizes logic-based Fault diagnosis, not only the engineering construction cycle is short, construction rapidly and efficiently, and fault diagnosis is practical, applied widely.

The above is only the general introduction of technical solution of the present invention, in order to be better understood upon the technological means of the present invention, under With reference to accompanying drawing, the invention will be further described in face.

Brief description of the drawings

Fig. 1 is the structural representation of the fault diagnosis system of the invention based on operation of power networks stable state monitoring information；

Fig. 2 is the structure and data interaction flow chart of fault logic diagnostic module in fault diagnosis system of the present invention.

Embodiment

With reference to Figure of description, the present invention is further illustrated.

A kind of fault diagnosis system based on operation of power networks stable state monitoring information as shown in Figure 1, including data-interface mould Module, fault logic diagnostic module are integrated in block, data receiver pretreatment module, equipment state in-service monitoring module, signal analysis With fault warning control module, it is defeated that the data interface module includes Real-time data interface, primary equipment data-interface and failure Outgoing interface.

The Real-time data interface, which is used to receive, comes from power grid regulation central monitor system operation of power networks stable state monitoring information In real time data information, the switch that the real time data information includes transmitting in real time by the stipulations of Operation of Electric Systems 104 is distant Letter displacement and SOE information, the protection remote signalling displacement transmitted in real time by the stipulations of Operation of Electric Systems 104 and SOE information, power network are transported Row and operation information；The operation of power networks and operation information are listed including equipment, switch is remotely controlled, manually suppresses, suppresses information, AVC action messages.

The primary equipment data-interface is used to obtain to be monitored from power grid regulation central monitor system operation of power networks stable state Primary equipment data message in information, the primary equipment data message include power network primary equipment topology information and one Secondary device measures sample information.

The failure output interface is used to receive the fault diagnosis result from the output of fault warning control module, and will be former Barrier diagnostic result is sent to monitoring alarm interface.

The data receiver pretreatment module is connected by Real-time data interface with power grid regulation central monitor system, is used for Initial survey is carried out according to filtering rule to real time data information, by filtering out invalid warning information, retaining effective warning information, will be had Effect warning information, which is sent to signal analysis, integrates module.

The equipment state in-service monitoring module passes through primary equipment data-interface and power grid regulation central monitor system phase Even, once setting including primary equipment topology information and measurement sample information is obtained by primary equipment data-interface Standby data message；Equipment state in-service monitoring module is used to carry out topologies change to the primary equipment data message of acquisition Statistics, measure sampling and measure the judgement of mutation, sample information will be measured binary number was write with the high sample frequency of 10 seconds According to file, by the relatively small number of topologies change of daily data volume in actual electric network and abrupt information write-in data buffering is measured Pond；Different storage modes is used for different pieces of information, binary data file is given full play to and is deposited with each leisure of Data buffer Advantage in terms of storage and read-write, is easy to carry out information exchange between subsequent module.

The signal analysis is integrated module and is connected by Data buffer with fault logic diagnostic module, for will effectively accuse Alert finish message is exported to Data buffer into primary equipment accident analysis data message, enters line number for fault logic diagnostic module According to calling.

The fault logic diagnostic module is used to extracting topologies change in Data buffer and measures abrupt information, Measurement sample information in binary data file, using Local network topology analysis method, and combine the failure of logic-based Diagnostic method, carry out inline diagnosis and obtain fault diagnosis result, fault diagnosis result is exported to fault warning control module.

The fault warning control module is connected by failure output interface with power grid regulation central monitor system, for school Test whether fault diagnosis result meets to alert control range, the fault diagnosis result of control range will be met according to alarm controlling party Formula, sent through failure output interface to the monitoring alarm interface of power grid regulation central monitor system, carry out man-machine interface displaying.

The present invention also provides the application fault diagnosis system based on operation of power networks stable state monitoring information as shown in Figure 1 and carried out The diagnostic method of on-line fault diagnosis, comprises the following steps：

1) by Real-time data interface receiving real-time data information and send to data receiver pretreatment module, connect by data Receive pretreatment module and initial survey, according to default filtering rule, the invalid warning information of automatic fitration, guarantor are carried out to real time data information Effect warning information is left, effective warning information is sent to signal analysis and integrates module；

2) primary equipment data message is obtained by primary equipment data-interface and sent to equipment state in-service monitoring mould Block, by the topologies change of equipment state in-service monitoring module real-time statistics primary equipment, measure sampling and measure dashing forward The judgement of change, and sample information write-in binary data file will be measured, by topologies change and measure abrupt information write-in Data buffer；

3) module is integrated by signal analysis and analysis and integration processing is carried out to effective alarm signal, integrated by signal analysis Module is ranked up from small to large according to the sequencing of signal forming time, and is automatically extracted by gap periods (15 seconds), right Comprehensive warning information is processed further and is integrally formed primary equipment accident analysis data message, by primary equipment accident analysis Data message is sent to Data buffer；

4) the primary equipment accident analysis data message in Data buffer is automatically extracted by fault logic diagnostic module, is opened up Flutter structure change and measure the measurement sample information in abrupt information, and binary data file, using Local network topology Analysis method, and the method for diagnosing faults of logic-based is combined, on-line fault diagnosis is realized, obtains fault diagnosis result；It is described The method for diagnosing faults of logic-based includes Circuit fault diagnosis logic, main transformer diagnosis logic and bus-bar fault diagnosis and patrolled Volume；

5) fault diagnosis result is obtained from fault logic diagnostic module by fault warning control module, verifies fault diagnosis knot Whether fruit meets to alert control range, and using the fault diagnosis result information for meeting control range as fault warning information, presses According to alarm control mode, sent through failure output interface to the monitoring alarm interface of power grid regulation central monitor system, enter pedestrian Machine showing interface, the fault warning information of displaying mainly include that fault time, faulty equipment, failure be separate, reclosing action feelings Condition.

Step 1) is data receiver pretreatment stage, passes through the setting of independent data receiver pretreatment module, it can be ensured that Processing is quick, and obtains required effective warning information, reduces the data volume of consequent malfunction diagnosis；Switch shape in existing power network State change (automatic or manual operation), protection device test, overhaul of the equipments are stopped transport, AVC (automatism voltage control) tune according to plan Section etc. can all cause to regulate and control central monitor system endlessly to receive all kinds of warning information that substation uploads, but actually power network Most moment are in normal operating condition, failure not be present in system, so the warning information numerous and diverse to multiple types It is necessary and important to carry out pretreatment.Wherein included using default filtering rule, the alarm suppression that is listed, full data judging, Switch alarm suppression, day signalizing activity number, switch manual remote control, AVC control switch, repair schedule, artificial rule setting automatically And suppress alarm zone of responsibility, as shown in table 1.

Rule numbers	Rule name	Remarks
			1	Listed alarm suppresses	Multinomial selection can be carried out
2	Full data judging
			3	Switch alarm suppresses	Multinomial selection can be carried out
4	Day signal number	Default value 20 times
			5	Switch manual remote control
6	AVC controls switch automatically
			7	Repair schedule
8	Artificial rule setting
			9	Suppress alarm zone of responsibility	Multinomial selection can be carried out

Table 1

It is described in further details below for the various types of filtration rule described in table 1.

Rule numbers " 1 ", rule name are " listed alarm suppresses "：For by regulating and controlling operations staff to including switch Power network primary equipment carry out artificial listing operation, caused by power grid regulation central monitor system and listed device-dependent All kinds of alarm signals, invalid warning information caused by equipment listed period is can be considered, data receiver pretreatment module can be to this Part alarm carries out active monitoring and filtering；In wherein artificial listing operation the type of sign board mainly include " maintenance, ground connection, Standby, short circuit, failure, stop transport, can not draw away, not close, protecting electricity, power supply point " etc. several major classes, " listed alarm suppress " rule can be Multinomial selection is carried out in above-mentioned a few class sign board types, to determine to enter which kind of or which the classes of sign board type of selection Row active filtering.

Rule numbers " 2 ", rule name are " full data judging "：Due to originals such as substation end monitoring system data acquisition exceptions Cause, cause the on off state of the on off state and substation end physical device monitored in grid dispatching center monitoring system inconsistent, Regulate and control central monitor system advance data acquisition module and substation end actual switch quantity of state is called by timing, to reach actively more The purpose of new regulation and control central monitor system on off state.Period, a large amount of switch remote signalling can be produced in central monitor system is regulated and controled Separating brake information is conjugated, these information reality is at substation end and is not present, for fault diagnosis system, based on such invalid announcement Alert information carries out fault diagnosis, can produce more equipment in practice and miss warning information, severe jamming regulation and control operations staff is normal Monitoring and operation, by setting the rule, can effectively reduce cailure rate of false positives, improve the correctness of fault diagnosis result.

Rule numbers " 3 ", rule name are " switch alarm suppresses "：Due to substation end data acquisition abnormity or switch transmission The reasons such as experiment, regulation and control central monitor system can receive substantial amounts of switch divide-shut brake signal, and interference operations staff normally alerts Monitoring, in this case, operations staff often actively take artificial alarm to suppress operation on the switch of such frequent movement, With the warning information of mask switch, data receiver pretreatment module alerts suppression by the switch of Proactive traceback, monitoring operations staff System operation, is effectively filtered to the mistake alarm signal of switch.

Rule numbers " 4 ", rule name are " day signal number "：Due to substation end protection device, monitor operating system frequency The reasons such as numerous start and stop, field test, operation, multiple switching and the protection of same equipment can be produced in central monitor system is regulated and controled Action signal, by taking switch as an example, according to power system primary equipment correlation operating standard, the permission breaks of switching devices It is distinctly claimed, if frequently receiving the multiple divide-shut brake action signal of same switch in the regulation and control central monitor system short time, Data receiver pretreatment module programming count action signal, once meeting and exceeding the number of setting, (default value one day is 20 It is secondary), the signal will be filtered automatically, while switching signal action total degree is counted, and reset in morning next day And count again.

Rule numbers " 5 ", rule name are " switch manual remote control "：Regulate and control central monitor system operations staff often root According to the requirement to power system operating mode, actively power system operating mode is adjusted, such as load, equipment stop multiple labour operation, Operations staff to scene switch manual remote control operation can as the important means being adjusted to above-mentioned power system operating mode it One, data receiver pretreatment module can effectively avoid fault diagnosis system because switching manual remote control by setting the RuleOption Operate and cause to the false alarm caused by the normal power failure of grid equipment.

Rule numbers " 6 ", rule name are " AVC controls switch automatically "：For regulation and control central monitor system receive by AVC Straighforward operation facility switching (such as capacity reactance device switch) divide-shut brake signal caused by the triggering of functional module voltage-regulation, is needed To be filtered for this kind of breakdown switch trip signal being not due to caused by real equipment fault.

Rule numbers " 7 ", rule name are " repair schedule "：To the equipment of repair schedule institute during overhaul of the equipments be present Caused alarm signal carries out active filtering, to more than turn(a)round, i.e., the device action signal outside turn(a)round recovers normal Statistics and pretreatment.

Rule numbers " 8 ", rule name are " artificial rule setting "：Manual definition is provided active alarm screen is carried out to equipment The function of covering, it is main to include by plant stand, primary equipment, shielding starting/termination time, screening type (including by " period, forever Long and release " three kinds of modes) enter the setting of line discipline, such as：

A, Huang crosses the Substation No.1 transformer 2014.10.52014.10.7 periods

Implication is shielded described in above-mentioned A specifically to can be described as：To No. 1 transformer of Huang Du transformer stations in 2014.10.5 extremely 2014.10.7 the relevant action information during is shielded；

B, No. 2 transformers of Huang Du transformer stations are permanent

Implication is shielded described in above-mentioned B specifically to can be described as：To No. 2 transformers of Huang Du transformer stations at any time in section Relevant action information forever shielded；

C, No. 3 transformers of Huang Du transformer stations release

Implication is shielded described in above-mentioned C specifically to can be described as：Exclusion is released to No. 3 transformers of Huang Du transformer stations, i.e., it is extensive Multiple normal signal receives, statistical function.

Rule numbers " 9 ", rule name are " suppressing alarm zone of responsibility "：It is actively set in advance to user that certain is a kind of or several Primary equipment action message in class alarm zone of responsibility is filtered, such as to belonging to once setting in " maintenance zone of responsibility " Standby action signal is filtered.

Equipment state in-service monitoring module in step 2) mainly realizes following three classes function：

1. primary equipment real-time measurement samples；

By setting every 10 seconds or whole minute interval is sampled including the primary equipments such as circuit, main transformer, bus automatically Real-time measurement information, and sampled data is stored in a manner of binary data file, while by going through more than 20 minutes History sampling binary data file is automatically deleted, and to save disk storage space, improves data access efficiency；

Judge 2. primary equipment measures mutation；

Sample information is measured according to primary equipment, the measurement change of adjacent double sampling point before and after being obtained by mathematic interpolation Change, and equipment of the change more than setting threshold values will be measured and recorded in Data buffer；

3. primary equipment topologies change counts；

According to the topology status data programming count situation of change of adjacent double sampling point before and after equipment, and topology will occur The primary equipment of structure change recorded in Data buffer.

With reference to three class functions of equipment state in-service monitoring module, describe in detail respectively involved in each function Configuration parameter and statistical method：The sampling of primary equipment real-time measurement and measurement the mutation arbitration functions, are matched somebody with somebody by basic parameter Put, the association attributes that can be achieved that only the primary equipment measurement in the range of configuration is sampled and measures sampling is defined Function, effectively improve sampling and statistics efficiency；Used configuration parameter is as shown in table 2.

Numbering	Parameter name	Remarks
			1	Maximum size	Refer in particular to unit
2	Lower bound of capacity	Refer in particular to unit
			3	The voltage class upper limit	Equipment
4	Voltage class lower limit	Equipment
			5	The plant stand voltage class upper limit
6	Plant stand voltage class lower limit
			7	Plant stand type	Multinomial it can select
8	Plant stand title	Quote from plant stand table
			9	Device type
10	Device name	Quote from equipment list
			11	Measurement parameters	Individual event selects
12	Whether it is mutated	Two-value judges
			13	Mutation is set	Two-value judges
14	Whether whole minute judges	Two-value judges
			15	It is mutated Value Types	Two-value judges
16	Mutation value
			17	It is mutated drift value

Table 2

Configuration parameter as shown in table 2 mainly includes：Under maximum size, lower bound of capacity, the voltage class upper limit, voltage class Limit, the plant stand voltage class upper limit, plant stand voltage class lower limit, plant stand type, plant stand title, device type, device name, measurement Parameter, whether be mutated, be mutated setting, whether whole minute judge, mutation Value Types, mutation value and mutation drift value.

It is described in further details below for all kinds of parameter functions described in table 2.

Number " 1 ", parameter name is " maximum size "：In particular to for sampling or counting the feelings that equipment is generating set Under condition, the monitoring generator capacity higher limit.

Number " 2 ", parameter name is " lower bound of capacity "：In particular to for sampling or counting the feelings that equipment is generating set Under condition, the monitoring generator capacity lower limit.

Number " 3 ", parameter name is " the voltage class upper limit "：The higher limit of the power network primary equipment voltage class of monitoring.

Number " 4 ", parameter name is " voltage class lower limit "：The lower limit of the power network primary equipment voltage class of monitoring.

Number " 5 ", parameter name is " the plant stand voltage class upper limit "：Affiliated plant stand voltage of power network primary equipment of monitoring etc. The higher limit of level.

Number " 6 ", parameter name is " plant stand voltage class lower limit "：Affiliated plant stand voltage of power network primary equipment of monitoring etc. The lower limit of level.

Number " 7 ", parameter name is " plant stand type "：The plant stand type of monitoring, can be in wind park, thermal power plant, nuclear power plant And individual event or multinomial selection are carried out between the plant stand type such as transformer station.

Number " 8 ", parameter name is " plant stand title "：The plant stand title of plant stand is monitored, can be entered in all plant stands of system Row individual event selects.

Number " 9 ", parameter name is " device type "：The device type of supervision equipment, can main transformer, generator, bus, Individual event or multinomial selection are carried out between capacity reactance, main transformer and circuit.

Number " 10 ", parameter name is " device name "：The title of the primary equipment of monitoring, can be in the primary equipment of system Middle progress individual event selection.

Number " 11 ", parameter name is " measurement parameters "：, can for identifying the measurement type of equipment sampling and mutation statistics The progress individual event selection between active and reactive, voltage, electric current, A phase currents, B phase currents, C phase currents, support circuit [active/ (split-phase) electric current], load [(split-phase) electric current], bus [voltage], main transformer [active], a variety of sampling quantities of equipment such as unit [active] Survey type selection, the configuration parameter above-mentioned function 1. with function 2. in it is effective.

Number " 12 ", whether parameter name is " being mutated "：It can be selected between the two in "Yes" and "No", for identifying Whether the measurement sampled value based on the equipment carries out the judgement of Sudden Changing Rate.

Number " 13 ", parameter name is " mutation is set "：The parameter only above-mentioned function 2. in effectively, can mutation section And mutation is critical is selected between the two, taken mode is mutated for identifying to judge to measure, when selecting between saltation zone, Indicate when the difference between equipment measures adjacent double sampling value is more than mutation (threshold) value, be judged as that the equipment is measured Mutation, when selection mutation is critical, the adjacent double sampling value of equipment is indicated, when the measuring value of previous sampled point is more than mutation (threshold) value, the measuring value of the latter sampled point are less than mutation (threshold) value, that is, judge that the equipment there occurs measuring to be mutated, is illustrated It is bright, mutation (threshold) value is arranged to 3.5 (unit MW, megawatt), takes and is mutated critical Sudden Changing Rate determination methods, two are adjacent Sampled point, when the measurement numerical value of previous sampled point (is higher than 3.5) for 300, close to the measurement numerical value of the latter sampled point be When 3.0 (being less than 3.5), it is believed that the equipment is measured and is mutated.

Number " 14 ", parameter name is " whether whole minute judges "：Only above-mentioned function 2. in effectively, the parameter is mainly used Judge to identify whether that whole moment minute carries out the mutation of two neighboring sampled point, select "Yes", that is, carrying out being mutated whole minute sentences It is disconnected, measure mutation and judge while to judge whether equipment undergos mutation according to following two modes that (following fabs symbologies are asked Take absolute value)：

Fabs (current whole minute measures sampled value-current whole 10s and measures sampled value)>It is mutated (threshold) value

Fabs (a upper whole 10s measures sampled value-current whole 10s and measures sampled value)>It is mutated (threshold) value；

When selecting "No", i.e., judge without Sudden Changing Rate whole minute, only judge that whether equipment 10s measures difference more than prominent Become threshold value, mutation judgment principle is as follows：

Fabs (a upper whole 10s measures sampled value-current whole 10s and measures sampled value)>It is mutated threshold value.

" 15 " and numbering " 16 " are numbered, parameter name is respectively " mutation Value Types " and " mutation value "：Wherein " mutation value class Type " is selected between the two in " percentage " and " numerical value ", and when " mutation Value Types " selection " percentage ", identifier number is The numerical value that the mutation value of " 16 " is filled in is percentage, fills out the percentage that value accounts for rated value for mutation value；When " mutation value class During type " selection " numerical value ", what the mutation value of identifier number " 16 " was filled in is actual numerical value, and unit is MW (megawatt), is risen Actual effect is the type of " mutation value " that indirect control is filled in by way of taking and setting " mutation Value Types ".

Number " 17 ", parameter name is " mutation drift value "：The practical function that the configuration parameter is played, which is to control, to be compiled Number it is " the mutation value " of " 16 ", to the verifying function of its value of filling in, is mainly used in avoiding equipment from dashing forward in physical fault diagnoses Variate is too small, causes equipment frequently to meet sudden change conditions, when " the mutation value " that numbering is " 16 " is less than " mutation zero of numbering " 17 " During drift value ", " mutation value " is dimensioned to automatically " mutation drift value ".

When some equipment occurs in configuration process in reality while meets a plurality of configuration record, i.e., when occurring in configuration result During competitive relation, following configuration parameter priority sequence principle should be observed：

Device name>Device type>Plant stand title>Plant stand type>The plant stand voltage class upper limit>Plant stand voltage class lower limit >Equipment upper voltage limit>Equipment lower voltage limit>Maximum size (unit)>Lower bound of capacity (unit).

It is a kind of according to it is above-mentioned to each parameter concrete configuration describe typical arrangement example, it is as shown in table 3 below：

Table 3

As shown in Fig. 2 describe fault logic diagnostic module integrates module and equipment state in-service monitoring with signal analysis Data message interaction and fault logic diagnosis built in diagnostics handling process between two modules；Fault logic diagnostic module exists It is most critical, most important module in whole fault diagnosis system.

Fault logic diagnostic module is obtained signal analysis and integrated module and sent to Data buffer by the cycle to be included out Close and protection information including operation of power networks stable state monitoring information, equipment state in-service monitoring module be stored in Data buffer and Power network primary equipment information in binary data file, using Local network topology analysis method, in combination with switch, protection Action, measure sampling, measure the operation of power networks stable state monitoring informations such as mutation and topologies change, to including circuit, main transformer And the method for diagnosing faults of all kinds of power network primary equipment combination logic-baseds of bus, online comprehensive diagnos is carried out to failure, will The fault diagnosis result of acquisition is sent to fault warning control module.

As seen from Figure 2, the input data source in fault logic diagnostic module needed for Local network topology analysis method Switch remote signalling/SOE and primary equipment topologies change information, its operation principle to be stored in Data buffer are：It is first First, topology search is carried out according to switch remote signalling/SOE, obtains the suspected fault primary equipment set being associated with step switch, life Entitled set A；Secondly, by topologies change data, state is obtained from uncharged primary equipment set is charged to, is named For set B；Again, by obtaining set A and set B union, i.e. A ∪ B, set C, i.e. C=A ∪ B are obtained；By in set C Data the method for diagnosing faults functional module of logic-based in fault logic diagnostic module is inputed to as input data source.

The method for diagnosing faults functional module of logic-based by all kinds equipment fault diagnosis logic of inner setting, In combination with the suspected fault primary equipment in set C, synthetic determination is carried out to device fails, finally gives the knot of diagnosis By information.All kinds equipment fault diagnosis rule can cover all primary equipments of power network, such as main transformer, generator, bus, line Road, capacity reactance, switch etc., below mainly with the important primary equipment of a few classes in power network, illustrate exemplified by circuit, main transformer, bus Diagnosis logic.

Circuit fault diagnosis logic in the step 4) has including step：

4a-1) based on circuit side switch motion (remote signalling/SOE), the protection act (remote signalling/SOE) of side, the factory of side Accident of standing always acts (remote signalling/SOE) these three conditions and carries out logistic diagnosis；When meet the switch motion of circuit side (remote signalling/ SOE under precondition), if meet the protection act (remote signalling/SOE) of side, the plant stand accident of side always act (remote signalling/ SOE) any one condition in the two conditions, you can judge line failure；

4a-2) based on circuit side switch motion (remote signalling/SOE), the switch motion of opposite side (remote signalling/SOE) the two Condition carries out logistic diagnosis；When simultaneously meet circuit side switch motion (remote signalling/SOE), the switch motion of opposite side (remote signalling/ SOE) during the two conditions, you can judge line failure；

4a-3) based on circuit side switch motion (remote signalling/SOE), protection act (remote signalling/SOE), the opposite side of opposite side Plant stand accident always act (remote signalling/SOE) these three conditions carry out logistic diagnosis；When meeting that the switch motion of circuit side is (distant Letter/SOE) precondition under, if meeting, the protection act (remote signalling/SOE) of opposite side, the plant stand accident of opposite side always act Any one condition in (remote signalling/SOE) the two conditions, you can judge line failure.

Main transformer diagnosis logic in the step 4) include the diagnosis logics that main transformer is volume two change and main transformer into The diagnosis logic of the change of volume three；

The main transformer is that the diagnosis logic of the changes of volume two has including step：

4b-1) based on where main transformer high side switch action (remote signalling/SOE), main transformer protection action (remote signalling/SOE), main transformer Plant stand accident always acts (remote signalling/SOE) these three conditions and carries out logistic diagnosis；When meeting main transformer high side switch action it is (distant Letter/SOE) precondition under, if meet main transformer protection action (remote signalling/SOE), plant stand accident where main transformer always act (remote signalling/ SOE) any one condition in the two conditions, you can judge that main transformer breaks down；

4b-2) based on main transformer high side switch action (remote signalling/SOE), main transformer low-pressure side switch motion (remote signalling/SOE), master Change high-pressure side measures mutation, main transformer high-pressure side measurement sampled value is zeroed, and this four conditions carry out logistic diagnosises；Meet to lead when simultaneously Become high-pressure side switch motion (remote signalling/SOE), main transformer low-pressure side switch motion (remote signalling/SOE), the measurement mutation of main transformer high-pressure side, master Become high-pressure side measure sampled value be zeroed this four conditions when, you can judge that main transformer breaks down；

The main transformer is that the diagnosis logic of the changes of volume three has including step：

4b-3) based on main transformer high side switch action (remote signalling/SOE), main transformer medium voltage side switch motion (remote signalling/SOE), master Plant stand accident where becoming protection act (remote signalling/SOE), main transformer always acts (remote signalling/SOE) this four conditions and carries out logistic diagnosis； When meeting main transformer high side switch action (remote signalling/SOE) or main transformer medium voltage side switch motion (remote signalling/SOE) precondition Under, if meeting, plant stand accident where main transformer protection action (remote signalling/SOE), main transformer is always acted in (remote signalling/SOE) the two conditions Any one condition, you can judge that main transformer breaks down；

4b-4) based on the medium/low pressure side switch motion of main transformer high side switch action (remote signalling/SOE), main transformer (remote signalling/ SOE), main transformer high-pressure side measures mutation, main transformer high-pressure side measures sampled value this four conditions that are zeroed and carries out logistic diagnosises；When simultaneously Meet the medium/low pressure side switch motion (remote signalling/SOE) of main transformer high side switch action (remote signalling/SOE), main transformer, main transformer high-pressure side amount During this four conditions that survey is mutated, main transformer high-pressure side measurement sampled value is zeroed, you can judge that main transformer breaks down.

Bus-bar fault diagnostic logic in the step 4) has including step：

4c-1) based on bus institute connecting valve action (remote signalling/SOE), bus protection action signal (remote signalling/SOE), bus Place plant stand accident always acts (remote signalling/SOE) these three conditions and carries out logistic diagnosis；When meeting the action of bus institute connecting valve Under the precondition of (remote signalling/SOE), if meeting, plant stand accident where bus protection action signal (remote signalling/SOE), bus is always moved Any one condition in (remote signalling/SOE) the two conditions of work, you can judge that bus breaks down；

Mutation 4c-2) is measured based on bus institute connecting valve action (remote signalling/SOE), busbar voltage, busbar voltage is measured and adopted Sample value be zeroed these three conditions carry out logistic diagnosis；When meeting bus institute connecting valve action (remote signalling/SOE), bus electricity simultaneously During these three conditions that pressure measures mutation, busbar voltage measurement sampled value is zeroed, you can judge that bus breaks down.

Fault warning control module in fault diagnosis system based on operation of power networks stable state monitoring information is mainly used in school Test whether fault diagnosis result meets to alert control range, the fault diagnosis result of control range will be met according to alarm controlling party Formula, sent through failure output interface to the monitoring alarm interface of power grid regulation central monitor system, carry out man-machine interface displaying.It is logical The control field according to user preset is crossed, realizes and scope is alerted to faulty equipment and alerts the control function of mode；Control field It is as shown in table 4 below including alarm range field and alarm mode field；Institute's fill substance in field 1~9, specification peace treaty in table 4 The beam alarm scope of faulty equipment；Institute's fill substance in field 10~13, professional etiquette is entered to the specific alarm mode of faulty equipment Model and constraint.

Table 4

It is described in further details below for all kinds of field parameter functions described in table 4.

Field " 1 ", parameter name are " equipment upper voltage limit "：The higher limit of power network primary equipment voltage class, wherein machine Group voltage class is defined by the highest voltage level of plant stand, such as the 20kV units, the equipment voltage of the unit etc. of 500kV plant stands Level should select 500kV.

Field " 2 ", parameter name are " equipment lower voltage limit "：The lower limit of power network primary equipment voltage class, wherein machine Group voltage class is defined by the highest voltage level of plant stand.

Field " 3 ", parameter name are " zone name "：Administrative region belonging to power network primary equipment.

Field " 4 ", parameter name are " plant stand upper voltage limit "：The upper limit of the affiliated plant stand voltage class of power network primary equipment Value.

Field " 5 ", parameter name are " plant stand lower voltage limit "：The lower limit of the affiliated plant stand voltage class of power network primary equipment Value.

Field " 6 ", parameter name are " plant stand type "：Can be in plant stands such as wind park, thermal power plant, nuclear power plant and transformer stations Individual event or multinomial selection are carried out between type.

Field " 7 ", parameter name are " plant stand title "：Plant stand Chinese, individual event can be carried out in all plant stands of system Selection.

Field " 8 ", parameter name are " device type "：Primary equipment type, can be in main transformer, generator, bus, electric capacity electricity Individual event or multinomial selection are carried out between anti-, main transformer and circuit, is not selected, is given tacit consent to and the type of equipment is not restricted.

Field " 9 ", parameter name are " device name "：Primary equipment title, it can be carried out in the primary equipment of system single Item selection.

Whether field " 10 ", parameter name are " alerting "：Selected between "Yes" and "No" two, when selection "Yes" When, indicating needs to alert, and when selecting "No", indicates and does not alert, but failure is still stored in System History storehouse, in case from now on to history Fault message carries out retrieval and inquisition.

Whether field " 11 ", parameter name are " voice "：Selected between "Yes" and "No" two, when selection "Yes" When, indicating needs to carry out the phonic warning prompting after failure, when selecting "No", indicates not phonic warning, but failure is still stored in System History storehouse, in case carrying out retrieval and inquisition to historical failure information from now on.

Field " 12 ", parameter name are " whether pushing away picture "：Selected between "Yes" and "No" two, work as selection During "Yes", indicating needs to release the plant stand monitored picture where the faulty equipment automatically, when selecting "No", indicates and does not push away picture Alarm, but failure is still stored in System History storehouse, in case carrying out retrieval and inquisition to historical failure information from now on；Containing for the parameter is set Justice is, for some do not belong to the low-voltage-grade equipment that local scheduling mechanism adjusts pipe, local regulation and control operations staff is past Toward the failure situation that need not pay close attention to the kind equipment.

Whether field " 13 " parameter name is " on send "：Selected between "Yes" and "No" two, when selection "Yes" When, indicating needs the fault message active push to upper level regulating and controlling central monitor system, when selecting "No", indicates and does not push away The fault message to upper level is given to regulate and control central monitor system, but failure is still stored in System History storehouse, in case from now on to history event Hinder information and carry out retrieval and inquisition, set the implication of the parameter to be, for the equipment of some low-voltage-grades, according to scheduling For code, it is not necessary to push to upper level regulation and control central monitor system.

For 13 field contents of table 4, there is following configuration condition：

A) after arbitrary fields content configuration modification, come into force at once in fault diagnosis system；

B) arbitrary fields do not configure, i.e., all to be recorded as sky, then give tacit consent to all devices and alert；

C) record information is configured with, but faulty equipment is unsatisfactory for any record, then and the equipment does not alert；

If d) not requiring the content of a certain field, can not fill out；

E) for circuit, as long as its either end meets alarm conditions, then the circuit alerts.

Content is filled out in field 1~9 in table 4, the alarm scope to faulty equipment has carried out specification and constraint, when some sets Standby to meet a plurality of configuration record simultaneously, i.e., when competitive relation occurs in configuration result, it finally alerts control range with priority Other highest record is defined, i.e., should observe following alarm scope priority sequence principle：

Device name>Device type>Plant stand title>Plant stand type>Zone name>The plant stand voltage class upper limit>Plant stand electricity Press level lower end>Equipment upper voltage limit>Equipment lower voltage limit.

Alert example：

" southern 5265 lines of bucket " of 500kV voltage class while meet following several configurations record：

(1) 500kV equipment alerts；

(2) 500kV plant stands alert；

(3) circuit does not alert.

Then it should be according to described alarm scope priority sequence principle, its priority orders：(3)>(2)>(1), finally The circuit is alerted according to the alarm control range of configuration and mode in above-mentioned (3), i.e. " the bucket south of 500kV voltage class 5265 lines " do not alert.

General principle, the main features and advantages of the present invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.

Claims (10)

1. A kind of 1. fault diagnosis system based on operation of power networks stable state monitoring information, it is characterised in that：Including data interface module, Module, fault logic diagnostic module and event are integrated in data receiver pretreatment module, equipment state in-service monitoring module, signal analysis Hinder ACM alarm control module, the data interface module includes Real-time data interface, primary equipment data-interface and failure output and connect Mouthful；

   The Real-time data interface is used to receive in power grid regulation central monitor system operation of power networks stable state monitoring information Real time data information, the primary equipment data-interface, which is used to obtain, comes from power grid regulation central monitor system operation of power networks stable state Primary equipment data message in monitoring information, the failure output interface is used to receive to be exported from fault warning control module Fault diagnosis result information, and fault diagnosis result is sent to monitoring alarm interface；

   The data receiver pretreatment module is connected by Real-time data interface with power grid regulation central monitor system, for reality When data message carry out initial survey according to filtering rule, filter out invalid warning information, retain effective warning information, and will effectively alert Information sends to signal analysis and integrates module；

   The equipment state in-service monitoring module is connected by primary equipment data-interface with power grid regulation central monitor system, is used In primary equipment is carried out the statistics of topologies change, measurement information sampling and mutation judgement, while sampled measuring Information writes binary data file, by topologies change and measures abrupt information write-in Data buffer；

   The signal analysis is integrated module and is connected by Data buffer with fault logic diagnostic module, for will effectively alert letter Breath is organized into primary equipment accident analysis data message and exported to Data buffer, and data tune is carried out for fault logic diagnostic module With；

   The topologies change that the fault logic diagnostic module is used to extract in Data buffer and measurement abrupt information, two enter Measurement sample information in data file processed, using Local network topology analysis method, examined in combination with the failure of logic-based Disconnected method carries out inline diagnosis and obtains fault diagnosis result, and diagnostic result is exported to fault warning control module；

   The fault warning control module is connected by failure output interface with power grid regulation central monitor system, for verifying event Whether barrier diagnostic result meet to alert control range, will meet the fault diagnosis result of control range according to alarm control mode, Sent through failure output interface to the monitoring alarm interface of power grid regulation central monitor system, carry out man-machine interface displaying.
2. 2. a kind of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 1, its feature exist In：The real time data information includes switch remote signalling displacement and the SOE letters transmitted in real time by the stipulations of Operation of Electric Systems 104 Breath, the protection remote signalling displacement transmitted in real time by the stipulations of Operation of Electric Systems 104 and SOE information, operation of power networks and operation information； The operation of power networks and operation information are listed including equipment, switch is remotely controlled, manually suppressed, suppressing information and AVC action messages；

   The primary equipment data message includes power network primary equipment topology information and power network primary equipment measures sampling letter Breath.
3. A kind of 3. diagnosis side of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 1 Method, it is characterised in that comprise the following steps：

   1) by Real-time data interface receiving real-time data information and send to data receiver pretreatment module, it is pre- by data receiver Processing module carries out initial survey to real time data information, according to default filtering rule, the invalid warning information of automatic fitration, remains with Warning information is imitated, and effective warning information is sent to signal analysis and integrates module；

   2) primary equipment data message is obtained by primary equipment data-interface and sent to equipment state in-service monitoring module, by The topologies change of equipment state in-service monitoring module real-time statistics primary equipment, carry out measuring sampling and measure sentencing for mutation It is disconnected, and sample information write-in binary data file will be measured, topologies change is delayed with abrupt information write-in data are measured Rush pond；

   3) module is integrated by signal analysis and analysis and integration processing is carried out to effective alarm signal, module is integrated by signal analysis It is ranked up according to the sequencing of signal forming time, and is automatically extracted by gap periods from small to large, is integrally formed once Equipment fault analysis data message, primary equipment accident analysis data message is sent to Data buffer；

   4) primary equipment accident analysis data message, the topology knot in Data buffer are automatically extracted by fault logic diagnostic module Structure changes and measured the measurement sample information in abrupt information, and binary data file, is analyzed using Local network topology Method, and the method for diagnosing faults of logic-based is combined, on-line fault diagnosis is realized, obtains fault diagnosis result；It is described to be based on The method for diagnosing faults of logic includes Circuit fault diagnosis logic, main transformer diagnosis logic and bus-bar fault diagnostic logic；

   5) fault diagnosis result is obtained from fault logic diagnostic module by fault warning control module, verification fault diagnosis result is It is no to meet alarm control range, and by the fault diagnosis result information for meeting control range according to control mode is alerted, through failure Output interface is sent to the monitoring alarm interface of power grid regulation central monitor system, carries out man-machine interface displaying.
4. A kind of 4. diagnosis side of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 3 Method, it is characterised in that：Filtering rule in the step 1) includes, the alarm suppression that is listed, full data judging, switch alarm suppression System, day signalizing activity number, switch manual remote control, AVC control switch, repair schedule, artificial rule setting and suppress to accuse automatically Alert zone of responsibility.
5. A kind of 5. diagnosis side of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 3 Method, it is characterised in that：Equipment state in-service monitoring module in the step 2) carries out measuring sampling and measurement is mutated when judging Used configuration parameter includes, maximum size, lower bound of capacity, the voltage class upper limit, voltage class lower limit, plant stand voltage class The upper limit, plant stand voltage class lower limit, plant stand type, plant stand title, device type, device name, measurement parameters, whether be mutated, Mutation is set, whether whole minute judges, is mutated Value Types, mutation value and mutation drift value.
6. A kind of 6. diagnosis side of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 3 Method, it is characterised in that：Local network topology analysis method in the step 4) has including step：

   Topology search 4-1) is carried out according to switch remote signalling/SOE, obtains the suspected fault primary equipment collection being associated with step switch Close, be named as set A；

   4-2) by topologies change data, state is obtained from uncharged primary equipment set is charged to, is named as set B；

   4-3) by obtaining set A and set B union, i.e. A ∪ B, set C, i.e. C=A ∪ B are obtained；By the data in set C The method for diagnosing faults functional module of logic-based in fault logic diagnostic module is inputed to as input data source.
7. A kind of 7. diagnosis side of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 3 Method, it is characterised in that：Circuit fault diagnosis logic in the step 4) has including step：

   Plant stand accident 4a-1) based on the switch motion of circuit side, the protection act of side, side always acts these three conditions and entered Row logistic diagnosis；When under the precondition for meeting the switch motion of circuit side, if meeting the protection act of side, the factory of side Accident of standing always acts any one condition in the two conditions, you can judges line failure；

   4a-2) based on the switch motion of circuit side, the switch motion of opposite side the two conditions progress logistic diagnosis；It is full when simultaneously When the switch motion of sufficient circuit side, the two conditions of the switch motion of opposite side, you can judge line failure；

   Plant stand accident 4a-3) based on the switch motion of circuit side, the protection act of opposite side, opposite side always acts these three Part carries out logistic diagnosis；When under the precondition for meeting the switch motion of circuit side, if meeting the protection act of opposite side, another The plant stand accident of side always acts any one condition in the two conditions, you can judges line failure.
8. A kind of 8. diagnosis side of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 3 Method, it is characterised in that：Main transformer diagnosis logic in the step 4) include the diagnosis logics that main transformer is volume two change and Main transformer is the diagnosis logic of the change of volume three；

   The main transformer is that the diagnosis logic of the changes of volume two has including step：

   These three conditions always 4b-1) are acted based on plant stand accident where the action of main transformer high side switch, main transformer protection action, main transformer Carry out logistic diagnosis；When meet main transformer high side switch action precondition under, if meet main transformer protection action, main transformer institute Any one condition in plant stand accident always acts the two conditions, you can judge that main transformer breaks down；

   Mutation, main transformer height 4b-2) are measured based on the action of main transformer high side switch, main transformer low-pressure side switch motion, main transformer high-pressure side Pressure side measures sampled value this four conditions that are zeroed and carries out logistic diagnosises；When simultaneously meet main transformer high side switch action, main transformer it is low During this four conditions that pressure side switch motion, main transformer high-pressure side measure mutation, main transformer high-pressure side measurement sampled value is zeroed, you can judge Main transformer breaks down；

   The main transformer is that the diagnosis logic of the changes of volume three has including step：

   4b-3) based on plant stand where the action of main transformer high side switch, the switch motion of main transformer medium voltage side, main transformer protection action, main transformer Accident always acts this four conditions and carries out logistic diagnosis；When meeting that the action of main transformer high side switch or main transformer medium voltage side switch are dynamic Under the precondition of work, if it is any one in the two conditions to meet that plant stand accident where main transformer protection action, main transformer always acts Individual condition, you can judge that main transformer breaks down；

   Mutation, main transformer 4b-4) are measured based on the action of main transformer high side switch, the medium/low pressure side switch motion of main transformer, main transformer high-pressure side High-pressure side measures sampled value this four conditions that are zeroed and carries out logistic diagnosises；When simultaneously meet main transformer high side switch action, main transformer During this four conditions that medium/low pressure side switch motion, main transformer high-pressure side measure mutation, main transformer high-pressure side measurement sampled value is zeroed, i.e., It can determine whether that main transformer breaks down.
9. A kind of 9. diagnosis side of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 3 Method, it is characterised in that：Bus-bar fault diagnostic logic in the step 4) has including step：

   These three always 4c-1) are acted based on plant stand accident where the connecting valve action of bus institute, bus protection action signal, bus Condition carries out logistic diagnosis；When under the precondition for meeting the connecting valve action of bus institute, if meeting, bus protection action is believed Number, plant stand accident where bus always act any one condition in the two conditions, you can judge that bus breaks down；

   Mutation 4c-2) is measured based on the connecting valve action of bus institute, busbar voltage, busbar voltage measurement sampled value is zeroed these three Condition carries out logistic diagnosis；When meeting that the action of bus institute connecting valve, busbar voltage measure mutation, busbar voltage is measured and adopted simultaneously Sample value be zeroed these three conditions when, you can judge that bus breaks down.
10. A kind of 10. diagnosis side of fault diagnosis system based on operation of power networks stable state monitoring information according to claim 3 Method, it is characterised in that：Alarm control range and alarm control mode in the step 5) use default control field, described Control field includes equipment upper voltage limit, equipment lower voltage limit, zone name, plant stand upper voltage limit, plant stand lower voltage limit, plant stand Type, plant stand title, device type and device name totally nine alarm control range field, and whether alert, whether voice, Whether push away picture and whether on send totally four alarm control mode field.