CN108539860A - A kind of spark gap status monitoring subsystem based on series compensation device system - Google Patents
A kind of spark gap status monitoring subsystem based on series compensation device system Download PDFInfo
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- CN108539860A CN108539860A CN201810436727.2A CN201810436727A CN108539860A CN 108539860 A CN108539860 A CN 108539860A CN 201810436727 A CN201810436727 A CN 201810436727A CN 108539860 A CN108539860 A CN 108539860A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of spark gap status monitoring subsystem based on series compensation device system, it is characterised in that the series compensation device state on_line monitoring system includes that string mends status monitoring information integrated platform, series compensation platform power, spark gap status monitoring subsystem, voltage limiter status monitoring subsystem and capacitor group status monitoring subsystem.Spark gap status monitoring subsystem acquires and monitors the state parameter of spark gap operating status; to the carry out overall process record of spark gap operating status; include whether the communication for receiving triggering command, spark gap and Control protection system is normal; and the warning function technical scheme of the present invention that can have spark gap failure helps to find and eliminate in time since equipment state deteriorates the threat for constituting power network safety operation, it is ensured that power grid security, stabilization, reliable power supply.
Description
【Technical field】
The invention belongs to super extra-high voltage series compensation device state on_line monitoring systems.
【Background technology】
The super-pressure series compensation device some that the country puts into operation at present continuous service for many years, although overall operation is steady,
Also a lot of capacitor oil leaks or explosion, spark gap false triggering, metal oxide pressure-limiting device (abbreviation voltage limiter MOV) once occurred
Pressure discharges and the failures such as control protection equipment damage malfunction, causes string to mend out of service, affects the safety and stability of power grid
Operation, causes the loss of transmission line capability.In the 500kV series compensations to have put into operation, many operation and maintenance experiences and bitterness
Lessons all be worth use for reference and draw.In the relevant primary equipment of series compensation device, such as by-pass switch, damping reactor, electricity
The equipment such as current transformer substantially belong to traditional primary equipment, and technology is relatively perfect, and operation is also reliable.It is right
In equipment such as capacitor, voltage limiter and spark gaps on series compensation platform, due to various reasons, the equipment hair run both at home and abroad
It has given birth to equipment component to damage when circuit breaks down, some even large area equipment damages, domestic typical example is such as：It is subordinate to
The perfectly sound string of North China Power Telecommunication Network company mends the capacitor group problem at station, Baise string benefit station MOV problems for being subordinate to Nan Wang companies and person in servitude
Belong to the three Bao Chuanbuzhan Siemens series capacitor compensation problems etc. of Jiangsu Power Grid.Equipment fault more than appearance, either equipment
Producer or run unit are all reluctant to see.
It is therefore desirable to carry out the research of super extra-high voltage series compensation unit state on-line monitoring system, emphasis monitoring string filling-in
The operating status of the equipment such as platform last time equipment such as capacitor, metal oxide pressure-limiting device, spark gap, when discovery operating status
After exception, series compensation device interruption maintenance is arranged according to operating condition, the unplanned outage time of series compensation device is reduced, effectively improves
The operational reliability of series compensation device.
【Invention content】
In order to solve the above problem in the prior art, the present invention provides a kind of fire based on series compensation device system
Flower gap state monitoring subsystem, the series compensation device state on_line monitoring system include that string benefit status monitoring information is integrated
Platform, series compensation platform power, spark gap status monitoring subsystem, voltage limiter status monitoring subsystem and capacitor group shape
State monitoring subsystem, the string mends status monitoring information integrated platform and is based on IEC61850 agreements, and uses C/S frameworks,
Ground communication uses unified communication protocol IEC61850；The various protocols such as IEC104, MODBUS, CAN are supported to arrive IEC61850's
Stipulations are converted, and the data integration of realization string benefit equipment condition monitoring, IEC61850 is modeled, uploaded, monitoring and alarm；Between the spark
Gap status monitoring subsystem acquires and monitors the state parameter of spark gap operating status, the progress to spark gap operating status
Overall process records, and includes whether the communication for receiving triggering command, spark gap and Control protection system is normal, and can have
The warning function of spark gap failure, spark gap status monitoring subsystem include spark gap control cabinet and control protection dress
It sets, spark gap control cabinet has two-way optical fiber to be connected with control protective unit, wherein it is that string mends control protection dress to have triggering optical fiber
Set the optical fiber that triggering information and inspection information are sent to spark gap control cabinet；Another way, which returns inspection optical fiber, to be controlled from spark gap
Case mends the optical fiber that control protective unit sends back inspection information to string, and time inspection optical fiber is only used for spark gap control cabinet and mends control to string
Protective device sends status information.It includes platform application server and video image that the string, which mends status monitoring information integrated platform,
Server two parts form, and installation string mends equipment condition monitoring platform software on the platform application server, and the string benefit is set
Standby status monitoring platform software is responsible for mending each monitoring subsystem of equipment, the spark gap by IEC61850 protocol integrated test system strings
Status monitoring subsystem, voltage limiter status monitoring subsystem and capacitor group status monitoring subsystem are by IEC61850 to described
String mends the various Real-time Monitoring Datas that status monitoring information integrated platform uploads, and Real-time Monitoring Data is deposited in platform application
On the database of server；Video image server receive and store the capacitor group status monitoring subsystem visible light and
Infrared real time video image.The string mends the storage of status monitoring information integrated platform data and uses distributed storage mode, will
Real-time Monitoring Data and vedio data store respectively.The realtime graphic of capacitor group status monitoring subsystem acquisition is by capacitance
Device temperature monitoring unit complete, the capacitor temperature monitoring unit by capacitor temperature monitoring modular, visible image capturing head and
Infrared camera is constituted.Voltage limiter status monitoring subsystem includes data acquisition unit, signal transmission unit, data processing list
Member.
The present invention uses the state of the effective monitoring device of advanced technological means, and the string based on IEC61850 agreements mends equipment
Communication Control Technology is monitored, acquires the status monitoring information of the key equipments such as series capacitor compensation, voltage limiter, spark gap in real time,
Open platform framework is studied, and monitoring, alarm, prediction and the analysis of equipment state, research can be carried out according to related standard
String based on IEC61850 agreements mends monitoring of equipment and integrates interaction technique, and exploitation mends equipment condition monitoring collection based on IEC61850 strings
At plateform system software, and application and scene.
Technical scheme of the present invention helps to find and eliminate in time since electricity net safety stable is transported in equipment state deterioration
The threat that row is constituted, it is ensured that power grid security, stabilization, reliable power supply.
【Description of the drawings】
Attached drawing described herein is to be used to provide further understanding of the present invention, and is constituted part of this application, but
It does not constitute improper limitations of the present invention, in the accompanying drawings：
Fig. 1 is the series compensation device state on_line monitoring system construction drawing of the present invention；
Fig. 2 is the series compensation device state on_line monitoring system structure topological diagram of the present invention；
Fig. 3 (a) (b) is the capacitor group status monitoring subsystem video image acquisition modes and current transformer of the present invention
Arrangement；
Fig. 4 is the capacitor temperature monitoring subsystem data integration scheme figure of the present invention；
Fig. 5 is the method schematic diagram that the present invention obtains gap state parameter using optical splitter from time inspection optical fiber；
Fig. 6 is the series compensation device state on_line monitoring systematic functional structrue figure of the present invention.
【Specific implementation mode】
Come that the present invention will be described in detail below in conjunction with attached drawing and specific embodiment, illustrative examples therein and says
It is bright to be only used for explaining the present invention but not as a limitation of the invention.
A kind of series compensation device state on_line monitoring system provided by the invention as shown in attached drawing 1-2, the series connection are mended
It includes that string mends status monitoring information integrated platform, series compensation platform power, spark gap to repay unit state on-line monitoring system
Status monitoring subsystem, voltage limiter status monitoring subsystem and capacitor group status monitoring subsystem, the string mend status monitoring
Information integrated platform is based on IEC61850 agreements, and uses C/S frameworks, and local communication uses unified communication protocol
IEC61850；It supports the various protocols such as IEC104, MODBUS, CAN to be converted to the stipulations of IEC61850, realizes that string mends equipment state
Monitoring data are integrated, IEC61850 modelings, upload, monitor and alarm.The capacitor group status monitoring subsystem monitoring is infrared
The realtime graphic of thermal imaging and visual light imaging confirms that the potential faults of capacitor unit and monitoring are due to capacitor group H in operation
Capacitor element caused by out-of-balance current in the type mode of connection damages.The voltage limiter status monitoring subsystem passes through measurement
MOV Leakage Currents judge its potential faults, by measure the electric current Data-Statistics that act every time of MOV its it is accumulative absorb energy situation and
Action frequency.The spark gap status monitoring subsystem acquires and monitors the state parameter of spark gap operating status, to fire
The carry out overall process record of flower gap operating status, includes whether to receive triggering command, spark gap and Control protection system
Whether communication is normal, and can have the warning function of spark gap failure.
It includes platform application server and video image server two parts that the string, which mends status monitoring information integrated platform,
It forms, installation string mends equipment condition monitoring platform software on the platform application server, and the string is mended equipment condition monitoring and put down
Platform software is responsible for mending each monitoring subsystem of equipment, the spark gap status monitoring subsystem by IEC61850 protocol integrated test system strings
System, voltage limiter status monitoring subsystem and capacitor group status monitoring subsystem mend status monitoring by IEC61850 to the string
The various Real-time Monitoring Datas that information integrated platform uploads, and Real-time Monitoring Data is deposited in the data of platform application server
On library；Video image server receives and stores the visible light of the capacitor group status monitoring subsystem and infrared regards in real time
Frequency image.The string mends the storage of status monitoring information integrated platform data and uses distributed storage mode, by Real-time Monitoring Data
It is stored respectively with vedio data.
The realtime graphic of capacitor group status monitoring subsystem acquisition is completed by capacitor temperature monitoring unit, the capacitance
Device temperature monitoring unit is made of capacitor temperature monitoring modular, visible image capturing head and infrared camera, the capacitor temperature
It spends monitoring unit and casing joint temperature is measured using wireless temperature measurement sensing head and infrared photography, taken the photograph using infrared photography and visible light
As being monitored to capacitor leakage of oil.
Capacitor group status monitoring subsystem monitoring capacitor component breakdown is to be directed to the capacitor group H-shaped mode of connection, is led to
Out-of-balance current between measurement capacitor group total current, bridge arm current and bridge arm is crossed, monitoring capacitor component breakdown situation.It is each
The electric current of current transformer is that capacitor group status monitoring subsystem is directly output to from failure wave-recording.
Spark gap status monitoring subsystem includes spark gap control cabinet and control protective unit, spark gap control cabinet
There is two-way optical fiber to be connected with control protective unit, wherein it is that string mends control protective unit to spark gap control cabinet to have triggering optical fiber
Send the optical fiber of triggering information and inspection information；It is to mend control protection dress from spark gap control cabinet to string that another way, which returns inspection optical fiber,
The optical fiber for sending back and examining information is set, inspection optical fiber is returned and is only used for spark gap control cabinet to string benefit control protective unit transmission state letter
Breath.
Voltage limiter status monitoring subsystem includes data acquisition unit, signal transmission unit, data processing unit, and data are adopted
Collection unit is acquired the Leakage Current of voltage limiter using sensor and data collecting plate card, and installs optical fiber cylinder, will acquire
To data surface-mounted data processing unit is transferred to by optical fiber cylinder, completed to the opto-electronic conversion of gathered data on ground
It is calculated with data, provides result of calculation.By on low-voltage bus bar install additional current transformer obtain voltage limiter current in resistance property come
Judge whether voltage limiter makes moist or deteriorate.
Fig. 3 a, 3b are capacitor group status monitoring subsystem video image acquisition modes and current transformer arrangement,
Capacitor group status monitoring subsystem includes two parts content：First, mainly passing through the real-time of infrared thermal imaging and visual light imaging
Image confirms the potential faults of capacitor unit in operation, such as liquid leakage, temperaturing lifting abnormality.Second is that utilizing capacitor group H-type
The case where out-of-balance current in the mode of connection, monitoring single capacitor component wear.
In view of the power supply capacity that camera needs is larger, be not suitable for taking energy on platform, and if be mounted on platform,
Original string complement system may be impacted, so track will be set up from ground, camera is according to preset rail in platform periphery
Road regular visit, it is therefore desirable to station power supply.This system is mainly set by holder rail polling robot, thermal infrared imager monitoring
Standby, visible light monitoring device, intelligent substation infrared thermal imagery watch on-line, wireless temperature data acquisition node, without line number
According to forward gateway communication system, configuration software, monitoring host computer composition.As the supplement of camera, those can not be observed
Capacitor unit, if necessary with it is feasible, then the mode that wireless temperature measurement may be used measures casing joint temperature etc..Install nothing additional
Line temperature transducers head haves no need to change any wiring of platform, and does not need platform power, will not be impacted to original system.
It is uneven between capacitor group total current, bridge arm current and bridge arm by measuring for the capacitor group H-shaped mode of connection
Electric current, monitoring capacitor component breakdown situation.Main electrical scheme situation is mended according to string, the CT1A and CT2A in Fig. 3 b are in series compensation platform
Upper current sensor, the electric current of each current transformer are that capacitor group status monitoring subsystem is directly output to from failure wave-recording
System.
The capacitor temperature that capacitor temperature monitoring unit shown in Fig. 4 is constituted detects subsystem comprising by capacitor
The capacitor temperature monitoring unit and background server group that temperature monitoring module, visible image capturing head and infrared camera are constituted
At, belong to the lower sub-systems of capacitor group monitoring subsystem, for monitoring connector temperaturing lifting abnormality, all infared spectrum information and
Video information is stored on a video server, is mounted on master control room.It mends equipment condition monitoring platform with string and passes through optical fiber
System interface is established in ethernet access, with fixed frequency, such as once every hour periodically automatic calling interface obtain equipment state and
Device measuring value shows, if any exception, unit exception collection of illustrative plates and the period video link can be transferred by interface, play it is infrared and
It can be seen that light detection video.Therefore capacitor temperature state can be regularly updated on string benefit equipment condition monitoring platform and equipment is infrared
Profile information.For the demand, capacitor temperature monitoring subsystem needs to provide the standard interface for meeting Platform Requirements, specifically
It is required that as follows：Interface form：Capacitor temperature monitoring subsystem provides the web Service interface or the shared texts of FTP of standard
Part presss from both sides, and by platform, this way actively accesses ftp file, and the required data of acquisition can also.Interface function：According to time range condition
Corresponding temperature data is inquired, can be according to the corresponding visible spectrum diagram data of time range condition query, and it can be from network call
It plays.Interface data content：Temperature monitoring subsystem should be able to provide temperature value time point, temperature value.State outcome is (normal or different
Often) and the corresponding collection of illustrative plates of the state.Sample frequency：Update is primary per hour.
Spark gap monitoring subsystem acquires and monitors the state parameter of spark gap operating status, realizes to spark gap
The overall process of operating status records, and whether just to include whether to receive the communication of triggering command, spark gap and Control protection system
Often etc., and can have the warning function of spark gap failure.
Currently, according to the operation principle of domestic string bowl spares spark gap, state ginseng related with spark gap reliably working
Amount is shown in Table 1-1.
Table 1-1 and the relevant state parameter of spark gap work
Spark gap control cabinet with string mend control protective unit there is two-way optical fiber to be connected, wherein have all the way optical fiber be string mend control
Protective device processed sends the optical fiber of triggering information and inspection information to spark gap control cabinet, is triggering optical fiber；Another way optical fiber
It is to mend control protective unit to string from spark gap control cabinet to send back inspection information, recalls inspection optical fiber.Inspection optical fiber is returned to be only used for
Spark gap control cabinet mends control protective unit to string and sends status information, so, if using optical splitter from time inspection optical fiber
Relevant quantity of state is obtained, as shown in figure 5, not doing any change to the device on platform, does not interfere with control protective unit
Trigger command is sent to spark gap and is received back inspection information, therefore does not interfere with the triggered as normal of spark gap, both ensure that
The reliability of spark gap, and the monitoring variable for making spark gap monitoring system be needed.Correlation is obtained from returning in inspection optical fiber
Quantity of state do not have to enter string mend Control protection system and monitoring system.
Fig. 6 is the functional structure chart of series compensation device state on_line monitoring system, is based on the achievable system of the structure
Function include mainly Condition Monitoring Data acquisition, data processing, exception measuring point rejecting, human-computer interaction interface, historical data report,
The functions such as system monitoring and analysis, statistics and report.
Condition Monitoring Data acquisition intuitively shows that displaying includes spark gap status monitoring parameter, limit using graph mode
Depressor status monitoring parameter, capacitor group status monitoring parameter, voltage limiter leakage current, action current, series capacitor compensation connector
Infared spectrum, visible light realtime graphic, temperaturing lifting abnormality, spark gap trigger the letters such as the monitoring of light path, trigger signal real time data
Breath.Wherein spark gap status monitoring parameter includes between spark gap communications status, energy-storage capacitor charging voltage state, spark
Whether gap synchronization loop state, spark gap receive whether trigger signal, spark gap export trigger signal etc..Voltage limiter state
Monitoring parameter includes MOV branch currents 1, MOV branch currents 2, MOV temperature, line current, GAP electric currents.Capacitor group state is supervised
Survey parameter include infared spectrum temperature monitoring video image, temperature, capacitor group electric current, out-of-balance current etc..
Data processing is completed by system data processing module, and system data processing module provides analog quantity processing, quantity of state
The functions such as processing, the processing of non-measured data, calculating and statistics, by data according to analog quantity, digital quantity, cumulative amount, file, curve
Etc. different types sort out respectively, be put into specified real-time data base, handled according to different algorithms.Wherein analog quantity is handled
The real-time quantization value of description monitoring system operation, includes the measurement parameters related data of monitoring subsystem, such as capacitor group electric current
Value, connector temperature value, out-of-balance current, MOV current values, temperature, GAP electric currents etc..
One, as follows to the processing of analog quantity：
(1) data screening
Real time data screening refers mainly to the screening function to real-time communication message, is divided real-time communication situation with auxiliary
Analysis can filter out the message unrelated with this stipulations from process communication message, exclude the misleading to analyzing personnel.It can also root
According to certain logic, the data for not obviously being inconsistent rule are excluded.
(2) data fault-tolerant
Error message abandons and record log, it is ensured that normal communication.
(3) data calculate
According to field demand, the data that certain necessary measurement amounts can be generated by formula editors calculate：It is logical according to component
It crosses certain operations and generates total amount.Analog quantity is maximum, minimum, average, day is accumulative, month to date, year are accumulative, out-of-limit number and more prescribes a time limit
Between etc., simulate Linear Amplifer or the diminution of numerical quantity.Remote signalling amount state change number and time.Cumulative amount day, the moon, year various systems
Meter.It can carry out self-defined calculating.It supports the function of extension formula, including and-or inverter operation, negates operation and more complicated
Operation.Alarm imaginary point can be also carried out to calculate.If certain conclusions can just be obtained when multiple out-of-limit conditions meet simultaneously, this
When need by final conclusion pass through generate alarm event.
Two, as follows to quantity of state processing：
Quantity of state includes switching value and multi-mode digital quantity, specially communications status, spark gap triggering state, switch
Other various semaphores such as position.Quantity of state can manually be set, and when the state being manually arranged is consistent with acquisition state, can be given
Go out prompt message.All quantity of states being manually arranged should be able to automatic list display, and can be recalled according to the affiliated plant stand of the quantity of state
Corresponding wiring diagram.
Three, as follows to the processing of non-measured data：
The data of indirect acquisition are known as non-measured data, may be by being manually entered, it is also possible to be obtained by calculation, two
Person has respective Quality Codes respectively.In addition to this, non-measured data should have identical data processing function with measured data.
During the rejecting of abnormal measuring point is on-line monitoring, since burst devices start, circuit shake and lightning impulse etc. are even
It so influences, it will generate accidental exception monitoring point.The presence of these exceptional values will distort analysis result.Therefore it is being analyzed
When disturbing factor should be picked out, obtain the actual change trend of equipment state.Main exception measuring point rejects mode and includes
Zero-drifting processing, the data that will be greater than 3s are rejected or carry out smooth estimation etc. using 53H algorithms to reduce the influence of abnormal data.
History data store and ways of presentation are that system provides special historical data base and defines required history for user
Data store organisation and sampling period.In actual motion, Historical Data System is according to the pre-defined period from real-time data base
Middle sampling, and being stored according to pre-defined memory module, by real time data scheduled store to relational database, to carry out
Statistical analysis.Such as can store 1 minute, 5 minutes, 10 minutes, 15 minutes, half an hour, 1 hour, whole day data, historical data
It is stored in relational database, can also as required be deposited into permanent storage medium.
If 5-minute data storage is to show historical data as unit of 5 minutes, exhibition method has numerically displaying to go through
History data and with curve mode show historical data.
1 hour data storage is that historical data is shown as unit of 1 hour, and exhibition method has with the real-time collection value of integral point
Mean variance is shown initial data and is shown with the maximum value of data, minimum value, the statistical data of average value in 1 hour.
1 day data storage is that historical data is shown as unit of 1 day, and exhibition method has with 0 point of real-time collection value of the same day
Show initial data and the maximum value of data, minimum value, the displaying displaying of the statistical data of average value in 1 day.
It can be stored with self-defining data.To specific type data, the week with statistical disposition can be stored with self-defining data
Phase.
System monitoring and analysis function also provides string and mends power station in addition to realizing conventional three distant (telemetering, remote signalling, remote control) functions
Unique monitoring analytic function.It is analyzed including equipment state monitoring, on-line early warning, trend analysis and out-of-balance current.
Wherein equipment state monitoring includes mainly capacitor group Stateful Inspection, MOV Stateful Inspections, spark gap state prison
5 function modules such as station structure figure, main wiring diagram are mended depending on, string.It is intuitively shown using graph mode, and different monitoring variables is distinguished
Multi graph display.Including voltage limiter leakage current, action current, series capacitor compensation connector infared spectrum, visible light realtime graphic, temperature
Rise the monitoring of abnormal spark gap triggering light path, trigger signal real time data.On-line early warning can be realized to work as and be sent out in system scope
When raw the case where needing that operations staff is caused to pay attention to, system will generate a series of warning messages.
On-line early warning function is by integrating real time data, device parameter, fault set, remote measure and communication information, upper layer scheduling life
The information such as order integrate real time data inspecting and early warning, form the real time monitoring of communication network and operation data, and it is pre- to trigger safety
Alert function.Type of alarm is active type of alarm, including figure alarm, word alarm, printing alarm etc..Type of alarm includes spy
The Threshold Crossing Alert of sign parameter, important state upgrading displacement alarm, accident alarming, condition alarm, system itself are alarmed.
Trend analysis is to the inquiry of historical data, maximum value, minimum value, mean value calculation.Including to voltage limiter leakage current,
The historical trend of each monitoring variables such as action current, series capacitor compensation connector temperature difference, spark gap triggering light path, trigger signal is aobvious
Show.System draws two-dimensional curve according to the time period, by type to historical data, and mending monitoring of equipment data history curve to string can be with
Per diem, it monthly inquires.
Out-of-balance current analysis can calculate capacitor unbalance electric current and phase, temperature according to algorithm, diagnose
Capacitor operating status.The earlier patent application file CN201710431444.4 of the particular content citation applicant of the algorithm,
《A kind of series capacitor compensation element fault monitoring method and device》.
Statistics, mainly to having statistical function, such as temperature value, electric current to significant data, provides list, song with report
The multiple display modes such as line, block diagram.Statistics for measured value includes maximum value, minimum value, average value and corresponding time
Statistics；System provides powerful report management subsystem, and time interval that can be on demand records real time information and by report
Sheet format shows and prints.Report can format as needed flexibly make, daily sheet show 24 hour operation real time data
And its statistical value；Moon sheet can show the statistical data of whole month operation, be formed at the end of month.It is different according to field condition, operation
Member can inquire at any time, the daily sheet in print system at least a year, moon sheet, such as：Device statistics report, alarm statistics report
It accuses.
Human-computer interaction interface mends status monitoring information integrated platform by string, and user can have found that string mends the different of equipment in time
Normal and failure, including the leakage of capacitor unit liquid medium, temperaturing lifting abnormality, conductor joint heating, metal oxide pressure-limiting device insulation shape
The defects of state, spark gap failure.Interactive form mainly has display system network, system realtime curve, in network and
Device parameter can be carried out on geographical map to show and inquire and the statistical query of operating parameter, it is adjustable.Show the moon, the load curve of day
And voltage curve, including real-time curve and Plan Curve, and indicate maximum, minimum and average value and maximin occur
Time.Show Automation System of Power Network operating status figure, the various real-time tables of display and history table, the various rod figures of display and
Pie chart, display trend curve figure and the newest warning message of display etc..
The above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application range,
The equivalent change or modification that feature and principle are done, is included within the scope of present patent application.
Claims (4)
1. a kind of spark gap status monitoring subsystem based on series compensation device system, it is characterised in that the series compensation
Unit state on-line monitoring system includes that string mends status monitoring information integrated platform, series compensation platform power, spark gap shape
State monitoring subsystem, voltage limiter status monitoring subsystem and capacitor group status monitoring subsystem, the string mend status monitoring letter
It ceases integrated platform and is based on IEC61850 agreements, and use C/S frameworks, local communication uses unified communication protocol
IEC61850；It supports the various protocols such as IEC104, MODBUS, CAN to be converted to the stipulations of IEC61850, realizes that string mends equipment state
Monitoring data are integrated, IEC61850 modelings, upload, monitor and alarm；The spark gap status monitoring subsystem is acquired and is supervised
The state parameter for surveying spark gap operating status includes whether to receive to the carry out overall process record of spark gap operating status
Whether the communication of triggering command, spark gap and Control protection system is normal, and can have the warning function of spark gap failure,
Spark gap status monitoring subsystem includes spark gap control cabinet and control protective unit, and spark gap control cabinet is protected with control
Protection unit has two-way optical fiber to be connected, wherein it is that string benefit control protective unit is triggered to the transmission of spark gap control cabinet to have triggering optical fiber
The optical fiber of information and inspection information；It is to mend control protective unit to string from spark gap control cabinet to send back that another way, which returns inspection optical fiber,
The optical fiber of information is examined, time inspection optical fiber is only used for spark gap control cabinet and sends status information to string benefit control protective unit.
2. a kind of spark gap status monitoring subsystem based on series compensation device system as described in claim 1, special
It includes platform application server and video image server two parts group that sign, which is that the string mends status monitoring information integrated platform,
At installation string mends equipment condition monitoring platform software on the platform application server, and the string mends equipment condition monitoring platform
Software is responsible for mending each monitoring subsystem of equipment, the spark gap status monitoring subsystem by IEC61850 protocol integrated test system strings
System, voltage limiter status monitoring subsystem and capacitor group status monitoring subsystem mend status monitoring by IEC61850 to the string
The various Real-time Monitoring Datas that information integrated platform uploads, and Real-time Monitoring Data is deposited in the data of platform application server
On library；Video image server receives and stores the visible light of the capacitor group status monitoring subsystem and infrared regards in real time
Frequency image；The string mends the storage of status monitoring information integrated platform data and uses distributed storage mode, by Real-time Monitoring Data
It is stored respectively with vedio data.
3. a kind of spark gap status monitoring subsystem based on series compensation device system as described in claim 1, special
Sign is that the realtime graphic of capacitor group status monitoring subsystem acquisition is completed by capacitor temperature monitoring unit, the capacitor
Temperature monitoring unit is made of capacitor temperature monitoring modular, visible image capturing head and infrared camera.
4. a kind of spark gap status monitoring subsystem based on series compensation device system as described in claim 1, special
Sign is that voltage limiter status monitoring subsystem includes data acquisition unit, signal transmission unit, data processing unit.
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