CN108896100A - A kind of capacitor group status monitoring subsystem - Google Patents
A kind of capacitor group status monitoring subsystem Download PDFInfo
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- CN108896100A CN108896100A CN201810436708.XA CN201810436708A CN108896100A CN 108896100 A CN108896100 A CN 108896100A CN 201810436708 A CN201810436708 A CN 201810436708A CN 108896100 A CN108896100 A CN 108896100A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Engineering & Computer Science (AREA)
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of capacitor group status monitoring subsystems, the capacitor group status monitoring subsystem is based on series compensation device state on_line monitoring system, and 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.Potential faults and the monitoring damage of the capacitor element due to caused by the out-of-balance current in the capacitor group H-type mode of connection of capacitor unit in the realtime graphic confirmation operation of the capacitor group status monitoring subsystem monitoring infrared thermal imaging and visual light imaging.Technical solution of the present invention 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 technique
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 once occurred
MOV) the failures such as pressure release and control protection equipment damage malfunction, cause string to mend out of service, affect the safety of power grid
Stable operation causes the loss of transmission line capability.In the 500kV series compensation to have put into operation, many operation and maintenance experiences and
Painful Lessons are all worth using for reference and drawing.In the relevant primary equipment of series compensation device, such as by-pass switch, damping reactance
The equipment such as device, current transformer substantially belong to traditional primary equipment, and technology is relatively perfect, and operation is also compared can
It leans on.The equipment such as capacitor, voltage limiter and spark gap on series compensation platform are run both at home and abroad due to various reasons
Equipment component damage when route breaks down, some even large area equipment damages, domestic typical example has occurred in equipment
Such as：The capacitor group problem for being subordinate to the perfectly sound string benefit station of North China Power Telecommunication Network company, Baise string for being subordinate to Nan Wang company are mended station MOV and are asked
It inscribes and three Bao Chuanbuzhan Siemens series capacitor compensation problems for being under the jurisdiction of Jiangsu Power Grid etc..Equipment fault more than appearance, nothing
By being that equipment manufacturer 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 runs shape
After state exception, series compensation device interruption maintenance is arranged according to operating condition, reduces the unplanned outage time of series compensation device, effectively
Improve the operational reliability of series compensation device
Summary of the invention
In order to solve the above problem in the prior art, the present invention provides one kind to be existed based on series compensation device state
The capacitor group status monitoring subsystem of line monitoring system, it is characterised in that series compensation device state on_line monitoring system
System includes that string mends status monitoring information integrated platform, series compensation platform power, spark gap status monitoring subsystem, pressure limiting
Device status monitoring subsystem and capacitor group status monitoring subsystem, the string are mended status monitoring information integrated platform and are based on
IEC61850 agreement, and C/S framework is used, local communication uses unified communication protocol IEC61850；Support IEC104,
The specification of the various protocols such as MODBUS, CAN to IEC61850 are converted, the equipment condition monitoring data integration of realization string benefit,
IEC61850 modeling uploads, monitors and alarms；Capacitor group status monitoring subsystem monitoring infrared thermal imaging and visible
The potential faults of capacitor unit and monitoring are due to the capacitor group H-type mode of connection in the realtime graphic confirmation operation of light imaging
In out-of-balance current caused by capacitor element damage；The realtime graphic of the capacitor group status monitoring subsystem acquisition
It is completed by capacitor temperature monitoring unit, the capacitor temperature monitoring unit is by capacitor temperature monitoring modular, visible light
Camera and infrared camera are constituted；The capacitor temperature monitoring unit is surveyed using wireless temperature measurement sensing head and infrared photography
Casing joint temperature is measured, capacitor leakage of oil is monitored using infrared photography and visible image capturing.Capacitor group state prison
Survey subsystem monitoring capacitor component breakdown be for the capacitor group H-shaped mode of connection, by measurement capacitor group total current,
Out-of-balance current between bridge arm current and bridge arm, monitoring capacitor component breakdown situation, the electric current of each current transformer be from
Capacitor group status monitoring subsystem is directly output in failure wave-recording.The string mends status monitoring information integrated platform
Platform application server and video image server two parts form, and installation string mends equipment shape on the platform application server
State monitoring platform software, the string mend equipment condition monitoring platform software and are responsible for mending equipment by IEC61850 protocol integrated test system string
Each monitoring subsystem, the spark gap status monitoring subsystem, voltage limiter status monitoring subsystem and capacitor group state
Monitoring subsystem mends the various Real-time Monitoring Datas that status monitoring information integrated platform uploads to the string by IEC61850,
And Real-time Monitoring Data is deposited on the database of platform application server；Described in video image server is received and is stored
The visible light and infrared real time video image of capacitor group status monitoring subsystem.It is integrated that the string mends status monitoring information
Platform data storage uses distributed storage mode, and Real-time Monitoring Data and video image data are stored respectively.Spark gap
Status monitoring subsystem includes spark gap control cabinet and control protective unit.Voltage limiter status monitoring subsystem includes data
Acquisition unit, signal transmission unit, data processing unit.
The present invention uses the state of the effective monitoring device of advanced technological means, and the string benefit based on IEC61850 agreement is set
Standby monitoring Communication Control Technology acquires the status monitoring letter of the key equipments such as series capacitor compensation, voltage limiter, spark gap in real time
Breath studies open platform framework, and can carry out monitoring, alarm, prediction and the analysis of equipment state according to related standard,
It studies the string based on IEC61850 agreement and mends the integrated interaction technique of equipment monitoring, exploitation mends equipment state based on IEC61850 string
Monitor integrated platform system software, and application and scene.
Beneficial effects of the present invention：
Technical solution 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.
Detailed description of the invention
Fig. 1 is series compensation device state on_line monitoring system construction drawing of the invention；
Fig. 2 is series compensation device state on_line monitoring system structure topological diagram of the invention；
Fig. 3 is capacitor group status monitoring subsystem video image acquisition modes figure of the invention；
Fig. 4 is capacitor group status monitoring subsystem current transformer arrangement figure of the invention；
Fig. 5 is capacitor temperature monitoring subsystem data integration scheme figure of the invention；
Fig. 6 is series compensation device state on_line monitoring systematic functional structrue figure of the invention.
Specific embodiment
It elaborates with reference to the accompanying drawing to a specific embodiment 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
Repaying unit 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, the string mend status monitoring
Information integrated platform is based on IEC61850 agreement, and uses C/S framework, and local communication uses unified communication protocol
IEC61850；It supports the various protocols such as IEC104, MODBUS, CAN to convert to the specification of IEC61850, realizes that string mends equipment shape
State monitoring data are integrated, IEC61850 modeling, upload, monitor and alarm.The capacitor group status monitoring subsystem monitoring is red
The potential faults of capacitor unit and monitoring are due to capacitor in the confirmation operation of the realtime graphic of outer thermal imaging and visual light imaging
Capacitor element caused by out-of-balance current in the group H-type mode of connection damages.The voltage limiter status monitoring subsystem passes through
Measurement MOV Leakage Current judges its potential faults, and by measuring the electric current Data-Statistics that act every time of MOV, it accumulative absorbs energy
Situation and action frequency.The spark gap status monitoring subsystem acquires and monitors the state ginseng of spark gap operating status
Amount includes whether that receiving triggering command, spark gap and control protects to the carry out overall process record of spark gap operating status
Whether the communication of protecting system 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 by IEC61850 protocol integrated test system string, spark gap status monitoring
System, voltage limiter status monitoring subsystem and capacitor group status monitoring subsystem pass through IEC61850 to the string benefit state
The various Real-time Monitoring Datas that monitoring information integrated platform uploads, and Real-time Monitoring Data is deposited in into platform application server
Database on；Video image server receives and stores the visible light of the capacitor group status monitoring subsystem and infrared
Real time video image.The string mends the storage of status monitoring information integrated platform data and uses distributed storage mode, will be real-time
Monitoring data and video image data store respectively.
The realtime graphic of capacitor group status monitoring subsystem acquisition is completed by capacitor temperature monitoring unit, the electricity
Vessel temp monitoring unit is made of capacitor temperature monitoring modular, visible image capturing head and infrared camera, the capacitor
Temperature monitoring unit measures casing joint temperature using wireless temperature measurement sensing head and infrared photography, using infrared photography and visible
Light camera shooting is monitored capacitor leakage of oil.
Capacitor group status monitoring subsystem monitoring capacitor component breakdown is led to for the capacitor group H-shaped mode of connection
Out-of-balance current between measurement capacitor group total current, bridge arm current and bridge arm is crossed, monitoring capacitor component breakdown situation.Respectively
The electric current of a 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
Case has two-way optical fiber to be connected with control protective unit, wherein having triggering optical fiber is that string mends control protective unit to spark gap control
Case processed sends the optical fiber of triggering information and inspection information；It is to mend control from spark gap control cabinet to string that another way, which returns inspection optical fiber,
Protective device sends back the optical fiber of inspection information, returns inspection optical fiber and is only used for spark gap control cabinet to string benefit control protective unit hair
Send status information.
Voltage limiter status monitoring subsystem includes data acquisition unit, signal transmission unit, data processing unit, data
Acquisition unit is acquired the Leakage Current of voltage limiter using sensor and data collecting plate card, and installs optical fiber cylinder, will adopt
The data collected are transferred to surface-mounted data processing unit by optical fiber cylinder, complete the photoelectricity to acquisition data on ground
Conversion and data calculate, and provide calculated result.The resistive electricity for obtaining voltage limiter by installing current transformer additional on low-voltage bus bar
Stream judges whether voltage limiter makes moist or deteriorate.
Fig. 3,4 are capacitor group status monitoring subsystem video image acquisition modes and current transformer arrangement, electricity
Container group status monitoring subsystem includes two parts content：First is that mainly passing through the real-time of infrared thermal imaging and visual light imaging
The potential faults of capacitor unit in image confirmation 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
On, original string complement system may be impacted, so track will be set up from ground, camera is according to default in platform periphery
Track regular visit, it is therefore desirable to station power supply.This system is mainly supervised by holder rail polling robot, thermal infrared imager
Measurement equipment, visible light monitoring device, intelligent substation infrared thermal imagery watch on-line, wireless temperature data acquisition node, nothing
Line number is according to forward gateway communication system, configuration software, monitoring host computer composition.As the supplement of camera, those can not be seen
The capacitor unit measured, if necessary with it is feasible, then casing joint temperature etc. can be measured by the way of wireless temperature measurement.
It installs wireless temperature measurement sensing head additional, haves no need to change any wiring of platform, and do not need platform power, original system will not be made
At influence.
For the capacitor group H-shaped mode of connection, by uneven between measurement capacitor group total current, bridge arm current and bridge arm
Weigh electric current, monitoring capacitor component breakdown situation.Main electrical scheme situation is mended according to string, the CT1A and CT2A in Fig. 4 are in string filling-in
Current sensor on platform, the electric current of each current transformer are that capacitor group status monitoring is directly output to from failure wave-recording
Subsystem.
The capacitor temperature that capacitor temperature monitoring unit shown in fig. 5 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 belonging 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 and string mend equipment condition monitoring platform and pass through light
Fine ethernet access, establishes system interface, and with fixed frequency, such as periodically automatic calling interface obtains equipment shape once every hour
State and device measuring value are shown, if any exception, unit exception map and the period video link can be transferred by interface, are played
Infrared and visible light detection video.Therefore string mend equipment condition monitoring platform on can regularly update capacitor temperature state and
Equipment infared spectrum information.For the demand, capacitor temperature monitoring subsystem needs to provide the standard for meeting Platform Requirements
Interface, specific requirement are as follows：Interface form：Capacitor temperature monitoring subsystem provides the web Service interface of standard, or
FTP Shared Folders, by platform, this way actively accesses ftp file, and data needed for obtaining can also be with.Interface function：According to when
Between range of condition inquire corresponding temperature data, can be according to the corresponding visible spectrum diagram data of time range condition query, and energy
It is played from network call.Interface data content：Temperature monitoring subsystem should be able to provide temperature value time point, temperature value.State knot
Fruit (normal or abnormal) and the corresponding map of the state.Sample frequency：It updates per hour primary.
Spark gap monitoring subsystem acquires and monitors the state parameter of spark gap operating status, realizes between spark
The overall process of gap operating status records, include whether to receive triggering command, spark gap and Control protection system communication whether
It is normal etc., and can have the warning function of spark gap failure.
Currently, according to the working 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 state parameter relevant to 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 benefit
Control protective unit sends the optical fiber of triggering information and inspection information to spark gap control cabinet, is triggering optical fiber；Another way light
Fibre 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 only to use
In spark gap control cabinet to string mend control protective unit send status information, so, if using optical splitter from return inspection optical fiber
It is middle to obtain relevant quantity of state, as shown in figure 5, not doing any change to the device on platform, it will not influence control protection dress
It sets and sends trigger command to spark gap and be received back inspection information, therefore will not influence the triggered as normal of spark gap, both guaranteed
The reliability of spark gap, and the monitoring quantity for needing spark gap monitoring system.Phase is obtained from returning in inspection optical fiber
The quantity of state of pass does not have to enter the Control protection system and monitoring system that string is mended.
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 mainly includes Condition Monitoring Data acquisition, data processing, abnormal measuring point rejecting, human-computer interaction interface, historical data report
The functions such as table, system monitoring and analysis, statistics and report.
Condition Monitoring Data acquisition intuitively shows show to include spark gap status monitoring parameter, limit using chart 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 triggering optical path, monitoring of trigger signal real time data etc. are believed
Breath.Wherein spark gap status monitoring parameter includes spark gap communications status, energy-storage capacitor charging voltage state, spark
Whether Dwell sync loop state, spark gap receive whether trigger signal, spark gap export trigger signal etc..Voltage limiter
Status monitoring parameter includes MOV branch current 1, MOV branch current 2, MOV temperature, line current, GAP electric current.Capacitor group
Status monitoring 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, song
The different types such as line are sorted out respectively, are put into specified real-time data base, are handled according to different algorithms.Wherein analog quantity
The real-time quantization value of processing description monitoring system operation, the measurement parameters related data including monitoring subsystem, such as capacitor group
Current value, connector temperature value, out-of-balance current, MOV current value, temperature, GAP electric current 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 carried out with auxiliary to real-time communication situation
Analysis can filter out the message unrelated with this specification from process communication message, exclude the misleading to analysis personnel.It can also
Enough 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 are calculated：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 out-of-limit
Time etc. simulates Linear Amplifer or the diminution of numerical quantity.Remote signalling amount state change number and time.Cumulative amount day, the moon, year are each
Kind statistics.It can carry out customized 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 are in multiple out-of-limit conditions while while meeting can just obtain
, it is needed at this time by final conclusion by generating 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, open
Other various semaphores such as off position.Quantity of state can manually be set, can when the state being manually arranged is consistent with acquisition state
To provide prompt information.All quantity of states being manually arranged should be able to automatic list display, and can be according to the affiliated plant stand of the quantity of state
Recall 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 it is obtained by calculation,
The two has respective Quality Codes respectively.In addition to this, non-measured data and measured data should have identical data processing function
Energy.
During the rejecting of abnormal measuring point is on-line monitoring, since burst devices starting, route shake and lightning impulse etc. are even
It so influences, it will generate accidental exception monitoring point.The presence of these exceptional values, which will be distorted, analyzes result.Therefore divided
Disturbing factor should be picked out when analysis, obtain the actual change trend of equipment state.Main exception measuring point rejects mode packet
Zero-drifting processing is included, will be greater than the data rejecting of 3s or carries out smooth estimation etc. using 53H algorithm to reduce the shadow of abnormal data
It rings.
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 period predetermined from real-time data base
Middle sampling, and according to memory module predetermined store, by real time data scheduled store into relational database, so as into
Row statistical analysis.Such as can store 1 minute, 5 minutes, 10 minutes, 15 minutes, half an hour, 1 hour, whole day data, history
Data are stored in relational database, can also be deposited into as required in permanent storage medium.
If 5-minute data storage is to show historical data as unit of 5 minutes, exhibition method, which has, numerically to be shown
Historical 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 show initial data and 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 the same day of real-time collection value
It shows initial data and the maximum value of data, minimum value, the statistical data of average value is shown 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 electricity in addition to realizing conventional three distant (telemetering, remote signalling, remote control) functions
It stands 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 mainly includes capacitor group Stateful Inspection, MOV Stateful Inspection, spark gap state prison
Station structure figure, 5 functional modules such as main wiring diagram are mended depending on, string.It is intuitively shown using chart mode, and by different monitoring quantity areas
Divide multi graph display.Scheme in real time including voltage limiter leakage current, action current, series capacitor compensation connector infared spectrum, visible light
The monitoring of picture, temperaturing lifting abnormality, spark gap triggering optical path, trigger signal real time data.On-line early warning can be realized when in system model
Enclose it is interior there is a situation where needing that operations staff is caused to pay attention to when, 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 trigger safety
Warning function.Type of alarm is active type of alarm, including figure alarm, word alarm, printing alarm etc..Type of alarm packet
Include characteristic parameter Threshold Crossing Alert, important state upgrading conjugates 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 leaking electricity to voltage limiter
The history of each monitoring quantities such as stream, action current, series capacitor compensation connector temperature difference, spark gap triggering optical path, trigger signal becomes
Gesture is shown.System draws two-dimensional curve according to the time period, by type to historical data, and it is bent to mend equipment monitoring data history to string
Line per diem, can be inquired monthly.
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 has statistical function, such as temperature value, electric current to significant data with report, provides list, song
The multiple display modes such as line, histogram.Statistics for measured value includes maximum value, minimum value, average value and corresponding time
Statistics；System provides powerful report management subsystem, can as needed time interval record real time information and by report
Sheet format shows and prints.The format that report can according to need flexibly makes, and daily sheet shows the real time data of 24 hour operation
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 equipment in time
Exception and failure, including the leakage of capacitor unit liquid medium, temperaturing lifting abnormality, conductor joint heating, metal oxide pressure-limiting device insulation
The defects of state, spark gap failure.Interactive form mainly has display system network, system realtime curve, in network
It shows and inquires and the statistical query of operating parameter with device parameter can be carried out on geographical map, it is adjustable.Show the moon, the load of day
Curve and voltage curve, including real-time curve and Plan Curve, and indicate maximum, minimum and average value and maximin
The time of appearance.Show that Automation System of Power Network operating status figure, the various real-time tables of display and history table, display are various
Rod figure and pie chart, display trend curve figure and the newest warning message of display etc..
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Invention is explained in detail referring to above-described embodiment for pipe, those of ordinary skills in the art should understand that：Still
Can with modifications or equivalent substitutions are made to specific embodiments of the invention, and without departing from spirit and scope of the invention appoint
What modification or equivalent replacement, should all cover within the scope of the claims of the present invention.
Claims (5)
1. a kind of capacitor group status monitoring subsystem, the capacitor group status monitoring subsystem is based on series compensation device shape
State on-line monitoring 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, the string mends status monitoring information integrated platform and is based on IEC61850 agreement, and uses C/S framework,
Its local communication uses unified communication protocol IEC61850；The various protocols such as IEC104, MODBUS, CAN are supported to arrive
The specification of IEC61850 is converted, and the equipment condition monitoring data integration of realization string benefit, IEC61850 is modeled, uploaded, monitoring and alarm；
Capacitor in the realtime graphic confirmation operation of the capacitor group status monitoring subsystem monitoring infrared thermal imaging and visual light imaging
Potential faults and the monitoring damage of the capacitor element due to caused by the out-of-balance current in the capacitor group H-type mode of connection of device unit
It is bad；The realtime graphic of the capacitor group status monitoring subsystem acquisition is completed by capacitor temperature monitoring unit, the capacitor
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.
2. capacitor group status monitoring subsystem as described in claim 1, it is characterised in that capacitor group status monitoring subsystem
System monitoring capacitor component breakdown is for the capacitor group H-shaped mode of connection, by measuring capacitor group total current, bridge arm current
And out-of-balance current between bridge arm, monitoring capacitor component breakdown situation, the electric current of each current transformer is from failure wave-recording
In be directly output to capacitor group status monitoring subsystem.
3. capacitor group status monitoring subsystem as described in claim 1, it is characterised in that the string mends status monitoring information
Integrated platform includes platform application server and video image server two parts composition, is installed on the platform application server
String mends equipment condition monitoring platform software, and the string mends equipment condition monitoring platform software and is responsible for passing through IEC61850 protocol integrated test system
String mends each monitoring subsystem of equipment, the spark gap status monitoring subsystem, voltage limiter status monitoring subsystem and capacitor
Device group status monitoring subsystem mends the various real-time prisons that status monitoring information integrated platform uploads to the string by IEC61850
Measured data, and Real-time Monitoring Data deposited on the database of platform application server；Video image server is received and is deposited
Store up the visible light and infrared real time video image of the capacitor group status monitoring subsystem；The string mends status monitoring information
The storage of integrated platform data uses distributed storage mode, and Real-time Monitoring Data and video image data are stored respectively.
4. capacitor group status monitoring subsystem as described in claim 1, it is characterised in that spark gap status monitoring subsystem
System includes spark gap control cabinet and control protective unit.
5. capacitor group status monitoring subsystem as described in claim 1, it is characterised in that voltage limiter status monitoring subsystem
Including data acquisition unit, signal transmission unit, data processing unit.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725215A (en) * | 2018-12-18 | 2019-05-07 | 国家电网公司 | Substation capacitors group Working Status Monitoring early warning system |
| CN111426909A (en) * | 2020-04-02 | 2020-07-17 | 江苏能电科技有限公司 | Cable aging detection method and device, computer equipment and storage medium |
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