CN106033096A - On-line monitoring system and method for transformer station lightning invasion wave - Google Patents
On-line monitoring system and method for transformer station lightning invasion wave Download PDFInfo
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- CN106033096A CN106033096A CN201510112177.5A CN201510112177A CN106033096A CN 106033096 A CN106033096 A CN 106033096A CN 201510112177 A CN201510112177 A CN 201510112177A CN 106033096 A CN106033096 A CN 106033096A
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Abstract
The invention discloses an on-line monitoring system and system for transformer station lightning invasion wave, which are applicable to on-line monitoring of the transformer station lightening invasion wave. The on-line monitoring system comprises at least three data collection terminals, a data center station and a remote access terminal; the data collection terminal is installed on a wire inlet terminal of the transformer substation for monitoring the invasion wave and power frequency current; voltage data is uploaded to the data center station in a wireless transmission mode; the data center station autonomously finishes analysis and diagnosis on the lightening invasion wave, determines a lightening type and counts and records related diagnosis data like overvoltage magnitude, times, etc, of the invasion wave under various types of lightening, analyzes a causes of a transformer substation accident, evaluates the effect on an insulation safety state and service life of a device by the invasion wave and an influence law of surges caused by various types of lightening on a power transmission line on the transformer substation, and transmits a diagnosis result to a remote access terminal. The on-line monitoring system and method have very important meaning to making preventive measurements for transformer station switch device lightening invasion wave and improving accident checking efficiency.
Description
Technical field
The present invention relates to lightning fault on-line monitoring correlative technology field, particularly relate to transformer station
Lightning Incoming Wave on-line monitoring system and method, be mainly used in transformer station's Intruding wave malfunction monitoring
With diagnosis.
Background technology
Transmission line of lightning strike produce Intruding wave be cause transformer station in apparatus insulated aging and damage
One of bad key factor, serious threat transformer station and the safe operation of whole power system.Just
For traditional transformer station's on-line monitoring technique, inlet wire current signal mainly utilizes station internal fault record
Wave apparatus obtains from Current Transformer Secondary side, but owing to being limited by transformer amplitude-frequency characteristic,
Shang megahertz Intruding wave overcurrent signal is up to for frequency and there is the problems such as wave distortion, and
Intruding wave overvoltage signal cannot be obtained, can not accurately obtain dissimilar thunderbolt to transformer station
Transient state shock characteristic information.Owing to the Intruding wave monitoring technology of transformer station is the most ripe, thus
Mainly produce problems with: first, be difficult to when substation equipment breaks down judgement be station in
Reason is still stood outer reason, reduces the efficiency of accident investigation；Secondly, the intrusion to transformer station
Ripple number of times and overvoltage level lack record and statistics, cause state of insulation and the longevity of station equipment
Life assessment all lacks foundation；Invaded by what dissimilar thunderbolt produced finally, for transmission line of electricity
Incoming wave is not enough to the transient state shock characteristic knowledge of regularity of transformer station, it is impossible to assessment shielding and counterattack are invaded
Incoming wave is to the influence degree of transformer station and rule.
Therefore, accurately obtain transformer station's Intruding wave transient state dash current, voltage characteristic information with
Instruct design and the switchgear type selecting of transformer station, invade for formulating transformer substation switch equipment thunder and lightning
The precautionary measures of incoming wave and lifting accident investigation efficiency have great importance.
Summary of the invention
Based on this, propose a kind of transformer station's Lightning Incoming Wave on-line monitoring system and method is used for becoming
Power station Intruding wave Fault monitoring and diagnosis.
Transformer station's Lightning Incoming Wave on-line monitoring system, including:
At least three data collection station, data-centric and remote terminal access；
Described data collection station includes Sensor Measurement Unit, microprocessor, wireless telecommunications list
Unit and power module, be installed on transforming plant lead-in end, be used for gathering transmission line of electricity A, B, C
Three-phase conducting wire Intruding wave and the electric current of power frequency, information of voltage and the most corresponding GPS (whole world
Alignment system, English name: Global Position System) clock information be uploaded to institute
State data-centric；
Described data-centric is provided with the monitoring system that a set of and described data collection station is supporting
System, for and described data collection station carry out data interaction, to Intruding wave voltage, electric current
Time of origin, separate, full waveform, amplitude, steepness, polarity are analyzed and store, knot
Close power current, information of voltage, it is judged that thunderbolt type is also added up and recording different types thunderbolt
The related diagnostic data such as the amplitude of lower Intruding wave overvoltage, number of times, for the one-tenth of substation accident
Because of analysis, the insulation safety state estimation of equipment and transmission line of electricity lightning protection proficiency assessment；
Described remote terminal access is for remotely accessing by the Internet web and controlling in data
Center station is to obtain the relevant information such as lightning strike information, Intruding wave diagnostic result easily, to described number
The monitoring system supporting according to central station carries out remote parameter configuration.
Described Sensor Measurement Unit includes Intruding wave voltage measurement module, duplex frequency voltage measuring mould
Block, Intruding wave current measurement module and power current measurement module.
Described Sensor Measurement Unit is by laying insulating barrier and electrode structure below device housings
Become electric capacity and external electrode distribution capacity dividing potential drop over the ground, at the electric capacity two ends that insulating barrier and electrode are constituted
Sampling capacitance in parallel gathers transformer station's porch Intruding wave voltage and power frequency electric for real-time online
Pressure signal.
Described Intruding wave current measurement module include Luo-coil, power frequency load current suppression circuit,
Integrating circuit and Intruding wave digital to analog converter.
Described power current measurement module include current transformer, second order active low-pass filter circuit,
Anti-phase scaling circuit and power frequency digital to analog converter.
Described power module uses solar energy and accumulator interworking formula power supply mode or high potential magnetic
Core coupling power taking and the mode powered of accumulator interworking formula, as described Sensor Measurement Unit,
Microprocessor and the power supply of radio communication unit.
Described microprocessor be single-chip microcomputer or DSP (digital signal processor, English name:
Digital Signal Processor), for described Sensor Measurement Unit is exported electric current,
Voltage signal carries out data storage, process, and is sent to described radio communication unit by serial ports.
Described microprocessor also comprise a FPGA (field programmable gate array, English name:
Field Programmable Gate Array), for Intruding wave electric current, voltage waveform are carried out
High speed acquisition, sample rate at least 2 megahertzs.
Described radio communication unit be including at least a GPRS DTU (based on general packet without
The wireless communication module of line service GPRS technology), for described data collection station and described
The transmission of data-centric data communication and reception.
Described remote terminal access is computer or mobile terminal of mobile telephone, it is also possible to by thereon
Monitoring system client is installed and remotely accesses described data-centric.
Above-mentioned transformer station Lightning Incoming Wave on-line monitoring system and method, filled up current transformer station
The technological gap of Lightning Incoming Wave on-line monitoring, for the genetic analysis of substation accident, equipment
Insulation safety state estimation and transmission line of electricity lightning protection proficiency assessment provide data supporting, for electricity
The raising of net safety operation level is most important.
Accompanying drawing explanation
Tu1Shi transformer station Lightning Incoming Wave on-line monitoring system structural representation
Fig. 2 is the structure chart of data collection station
Fig. 3 is Intruding wave voltage monitoring schematic diagram
Fig. 4 is Intruding wave current measurement module structure chart
Fig. 5 is power current measurement module structure chart
Tu6Shi transformer station Lightning Incoming Wave on-line monitoring system monitoring method flow chart
Fig. 7 is that the web of remote terminal access accesses surface chart
Fig. 8 is the client end interface figure of remote terminal access
Fig. 9 is power current suppression circuit figure
Figure 10 is integrating circuit figure
Detailed description of the invention
The present invention will be further described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
It is illustrated in figure 1 transformer station of the present invention Lightning Incoming Wave on-line monitoring system structural representation
Figure.Data collection station 1 is arranged on the transmission line of electricity end of incoming cables of transformer station, each mount point
Including at least 3 data collection stations 1, distributing installation is at transmission line of electricity A, B, C three-phase
On wire；When transmission line of lightning strike, by Intruding wave and the electric current of power frequency, information of voltage and
Gps clock information corresponding respectively is uploaded to data center in real time by the pattern being wirelessly transferred
Stand 2.
Data-centric 2 is typically to be provided with monitoring system matching used with data collection station 1
The computer server of system, sets up special web database, on the one hand, be responsible for and data
Acquisition terminal 1 carries out data interaction, and the parameter configuration of data acquisition terminal 1, software exist
The functions such as line upgrading；On the other hand, it is responsible for the data according to data collection station 1 is uploaded to carry out
Analyzing and diagnosis, diagnostic result mainly includes herein below:
One, the origin cause of formation of substation accident is analyzed, it is determined that substation accident is by station equipment fault
Causing or caused by Intruding wave, concrete decision method is: when substation accident occurs, if having
Intruding wave invasion then judges that fault is caused by Intruding wave, if not having Intruding wave to invade, judges fault
Caused by station equipment fault；
Two, the assessment Intruding wave insulation safety state on equipment and the impact in life-span, add up power transformation
In standing, distinct device fault, life-span and the relation of Intruding wave, search Intruding wave amplitude, frequency etc.
The relation in distinct device fault, life-span in characteristic quantity and transformer station；
Three, the affecting laws that transformer station is impacted by the dissimilar thunderbolt of transmission line of electricity, according to intrusion
Wave characteristic information judges thunderbolt type, further statistical analysis transmission line lightning stroke shielding and counterattack
The affecting laws that transformer station is impacted by two types.
When Intruding wave occurs, diagnostic result is sent to far by data-centric 2 by the Internet
Journey accesses terminal 3, and remote terminal access 3 is Internet enabled calculating in the present embodiment
Machine 4 or mobile terminal of mobile telephone 5, remotely accessed by the Internet web and control data-centric
2, the work such as the configuration relevant parameter of data collection station 1 and upgrading further, mobile phone moves
Dynamic terminal 5 receives the diagnostic result that data-centric 2 sends in the way of note.
It is the structure chart of data collection station 1 of the present invention as shown in Figure 2.Data collection station 1
Including Sensor Measurement Unit 201, microprocessor 202, radio communication unit 203 and power supply
Module 204.
Sensor Measurement Unit 201 includes Intruding wave voltage measurement module, duplex frequency voltage measuring mould
Block, Intruding wave current measurement module and power current measurement module, be installed on transforming plant lead-in end,
For gathering transmission line of electricity A, B, C three-phase conducting wire Intruding wave and the electric current of power frequency, voltage letter
Breath.
Microprocessor 202 is single-chip microcomputer or DSP, for exporting described Sensor Measurement Unit
Electric current, voltage signal carries out data storage, process, and is sent to wireless telecommunications by serial ports
Unit 203.
Radio communication unit 203 is including at least a GPRS DTU, for data acquisition eventually
Hold the transmission with data-centric data communication and reception；Generally, radio communication unit
203 is a GPRS DTU, when having higher requirements data reliability requirement, can adopt
With major-minor two GPRS DTU, standby as main GPRS DTU of auxiliary GPRS DTU,
When enabling when device damage or communication quality are poor occurs in main GPRS DTU.
Power module 204 uses solar energy and accumulator interworking formula to power or high potential magnetic core coupling
The mode that conjunction electricity and accumulator interworking formula are powered, as Sensor Measurement Unit 201, Wei Chu
Reason device 202 and the power supply of radio communication unit 203.Solar energy and accumulator interworking formula supply
Electrically it is applicable to DC power transmission line and transmission line of alternation current, preferential for DC power transmission line
Use this power supply mode；The coupling power taking of high potential magnetic core and accumulator interworking formula power supply mode are suitable for
In transmission line of alternation current, according to electromagnetic induction principle, the magnetic field energy around transmission line of alternation current is turned
Being changed to electric energy, the alternating voltage of magnetic core coupling electricity taking coil output is rectified, DC-DC conversion
Be converted to data collection station 1 work required voltage, charge for accumulator simultaneously, work as exchange
When transmission line of electricity has a power failure, accumulator it is that data collection station 1 is powered.
It is Intruding wave voltage monitoring schematic diagram of the present invention as shown in Figure 3.Use based on coupling electric capacity
Dividing potential drop contactless measurement measures Intruding wave voltage, and concrete grammar is by device housings
Insulating barrier is laid in lower section and electrode constitutes electric capacity 301 and (uses condenser symbol C1Represent) and external electrode
Distribution capacity 302 (uses condenser symbol C over the ground2Represent) dividing potential drop, at C1Two ends parallel connection sampling
Electric capacity 303 (uses condenser symbol CMRepresent) obtain line voltage distribution.
Sampling capacitance 302 both end voltage is sampled voltage um, meet as follows with line voltage distribution u
Relation:
Intruding wave voltage measurement module and duplex frequency voltage measuring module share a voltage measurement and pass
Sensor, differs primarily in that the Acquisition Circuit of Intruding wave voltage measurement module is high frequency Acquisition Circuit,
Analog-digital converter sample rate at least 2 megahertzs, the power-frequency voltage that duplex frequency voltage measuring module gathers
Frequency is 50 hertz, and Acquisition Circuit is low frequency Acquisition Circuit, and digital to analog converter sample rate is 1
More than KHz.
It is Intruding wave current measurement module structure chart of the present invention as shown in Figure 4.Intruding wave electric current is surveyed
Amount module includes Luo-coil 401, power current suppression circuit 402, integrating circuit 403 and
Intruding wave digital to analog converter 404.Luo-coil 401 is arranged on transmission line wire surface,
The Intruding wave current signal collected is superimposed with the power current component that frequency is 50 hertz, sieve
Power current component is first filtered by family name's coil 401 outfan through power current suppression circuit 402,
403 the Intruding wave current differential amount integration reduction of the most integrated circuit, make integrating circuit 403 defeated
Go out signal linear with Intruding wave current waveform, after through Intruding wave digital to analog converter 404
Intruding wave current signal analog quantity is converted to digital quantity, is then forwarded to microprocessor 202.
It is power current measurement module structure chart of the present invention as shown in Figure 5.Power current measures mould
Block includes current transformer 501, second order active low-pass filter circuit 502, anti-phase scaling
Circuit 503 and power frequency digital to analog converter 504.Current transformer 501 is arranged on power line conductive
On line surface, when Intruding wave is through current transformer 501, the power frequency current signal collected
Being superimposed with Intruding wave high fdrequency component, the output signal of current transformer 501 is the lowest through second order active
Bandpass filter circuit 502 filters Intruding wave high fdrequency component, more inverted scaling circuit 503 is adjusted
Whole power frequency current signal gain, after through power frequency digital to analog converter 504 by power frequency current signal mould
Analog quantity is converted to digital quantity, is then forwarded to microprocessor 202.
It is transformer station of the present invention Lightning Incoming Wave on-line monitoring system monitoring method as shown in Figure 6
Flow chart.This monitoring method includes:
Step S210, data collection station 1 is by the Intruding wave gathered and the electric current of power frequency, electricity
Pressure information and gps clock information corresponding respectively are wirelessly transferred by GPRS and are uploaded to number
According to central station 2；
Step S220, data-centric 2 is to Intruding wave voltage, the time of origin of electric current, phase
Not, full waveform, amplitude, steepness, polarity diagnose and store, in conjunction with power current,
Information of voltage, it is judged that thunderbolt type also adds up the most electric with Intruding wave under recording different types thunderbolt
The related diagnostic data such as the amplitude of pressure, number of times；
Step S230, data-centric 2 is according to the origin cause of formation of diagnosis data analysis substation accident
Analyze, it is determined that substation accident is to be caused by station equipment fault or Intruding wave causes, assessment
Intruding wave is dissimilar with the impact in life-span and transmission line of electricity on the insulation safety state of equipment
Be struck by lightning the affecting laws to transformer station's impact；
Step S240, diagnostic result is sent to remote terminal access 3 by data-centric 2.
Embodiment two
Being the web access surface chart of remote terminal access as shown in Figure 7, described web accesses
Interface includes that 4 partial contents, described 4 partial contents include that transformer station selects district, function selecting
District, map display area and basic information region.Described transformer station selects the function in district to be to select to be wanted
The relevant transformer station of inquiry, on the one hand user can use function of search to search relevant transformer station,
On the other hand user can also be direct according to the ownership power supply administration of relevant transformer station to be searched
Click on this transformer station.Described function selection area is the Core Feature district that described web accesses interface
Territory, including Intruding wave inquiry session window, statistical report form dialog box and background maintenance dialog
Mouthful, described Intruding wave inquiry session window needs initial time and the termination time of input inquiry,
The most optionally input fault character；Described statistical report form dialog box needs to input
Time beginning, termination time and report form type, described report form type includes transformer station's year Intruding wave
Form drawn game year Intruding wave form；The work of described background maintenance window query data collection station
Make state and amendment associated technical parameters.Described map display area mainly shows inquired about power transformation
Station location and the line alignment of installation data acquisition terminal, it is provided that Consumer's Experience more intuitively.
Described basic information region major function is to show inquired about transformer station Lightning Incoming Wave essential information,
The essential information of display includes: invasion time, transformer station's ownership place, transformer station's title, voltage
Grade, thunder and lightning polarity, character, separate, whether cause station the content such as internal fault and form,
Wherein click on form, can show in addition to essential information, also the electric current of Intruding wave, voltage and event
Barrier power current, voltage waveform and determine Intruding wave be station in or the analysis that causes of outer fault of standing
Journey.
Embodiment three
The present embodiment is different from embodiment one is that remote terminal access 3 is by pacifying thereon
Dress monitoring system client remote access and control data-centric 2, configure data further
The work such as the relevant parameter of acquisition terminal 1 and upgrading, mobile terminal of mobile telephone 5 is in the way of note
Receive the diagnostic result that data-centric 2 sends.
As shown in the client end interface figure of Fig. 8 remote terminal access, main interface include menu bar,
Shortcuts bar, substation architecture hurdle, substation line install display interface and information display window.
The function of described menu bar includes monitoring and maintenance, information inquiry, rights management, system dimension
Protect, system operates and window, and described monitoring and maintenance mainly realizes transformer station or circuit dependency basis
The amendment of this information, increase and the function such as deletion；Described information inquiry drop-down menu includes running letter
Breath inquiry, accident information inquiry, diagnostic result inquiry, data collection station status poll sum
Inquiring about according to acquisition terminal running log, described operation information inquiry major function is inquiry data acquisition
Collection terminal ruuning situation, described accident information inquiry major function be inquiry Intruding wave electric current,
The shape informations such as voltage and fault power current, voltage, described diagnostic result inquiry major function
Be Intruding wave invasion the time, thunderbolt character, polarity, separate, whether cause transformer station's internal fault
Etc. analysis result, described data collection station status poll function is whether inquiry terminal is according in advance
If time dormancy and reaching the standard grade, described data collection station running log query function is except showing
Outside whether terminal is according to Preset Time dormancy and reaching the standard grade, it is also possible to whether timing is to number for display terminal
The information that terminal overall operation is good is have sent according to center；The major function of described rights management is
The different client of display or department to the operating right of this client end interface and amendment different user or
The access rights of department；Described system maintenance major function includes that Diagnostic parameters is safeguarded, electric current becomes
Ratio self-adjusting maintenance and system test, record simultaneously and preserve parameter modification record history of forming report
Accuse；Described system operating function is switching different rights account, is so more beneficial for the people at interface
Property；Described window function shows the function opened, such as, open diagnostic result inquiry, window
In will show this function, if being not turned on any function, show main interface.
Described shortcuts bar mainly shows commonly used function, such as operation information inquiry, accident letter
Breath inquiry and diagnostic result are inquired about, and add the convenience that interface uses.
Described substation architecture hurdle display transformer station, current conversion station or power plant's outlet (inlet wire) are tree-shaped
Figure, and be associated with described substation line installation display interface and described information display window,
When clicking on certain transformer station, current conversion station or the circuit belonging to power plant, then described substation line peace
Dress display interface shows the scheme of installation of this circuit, shows this track data acquisition terminal simultaneously
Communication conditions.
Embodiment four
It is power current suppression circuit figure of the present invention as shown in Figure 9.Power current suppression circuit master
It is used for filtering the power current inductive component in Luo-coil 401 output signal, in this enforcement
In example, use twin-T network and a band elimination filter that positive feedback is provided via top capacity,
By input the 901, first filter resistance 902 being connected with Luo-coil 401, feedback electricity
Appearance 903, second filter resistance the 904, first filter capacitor the 905, second filter capacitor 906,
Feedback resistance the 907, first proportion resistor 908, operational amplifier the 910, second proportion resistor
911 and earth terminal 909 and outfan 912 constitute；Input 901 filters with first respectively
Resistance 902 and the first filter capacitor 905 connect, and the first filter resistance 902 is respectively at the second filter
Ripple resistance 904 and feedback capacity 903 connect, and the first filter capacitor 905 is respectively at the second filtering
Electric capacity 906 and feedback resistance 907 connect, and feedback capacity 903 is defeated with operational amplifier 910
Go out end to connect, second filter resistance the 904, second filter capacitor 906 and operational amplifier 910
Input anode connect, feedback resistance 907 is connected with earth terminal 908, operational amplifier
The input anode of 910 is connected with the first proportion resistor 908 and the second proportion resistor 911 respectively,
First proportion resistor 908 is connected with earth terminal 909, the second proportion resistor 911 and outfan
912 connect.
In the present embodiment, the first filter resistance 902 and the second filter resistance 904 resistance value phase
Deng, it being designated as R, feedback resistance 907 resistance value is R/2；First filter capacitor 905 and second
Filter capacitor 906 capacitance is equal, is designated as C, and feedback capacity 903 capacitance is 2C, the
One proportion resistor 908 resistance value is Ra, the second proportion resistor 911 resistance value is Rb, by scheming
Can calculate its transmission function is:
Above formula frequency domain is converted to time domain have:
Wherein, Proportional coefficient K=(Ra+Rb)/Ra, cut-off angular frequency w0=1/ (RC), quality
Factor Q=1/ (4-2K).
In the present embodiment, R is takena=10k Ω, Rb=9.9k Ω, R=31.83k Ω, C=100nF
Thus K=1.99, Q=50；Further, bandwidth BW=1Hz, it is possible to filter 49Hz～51Hz
Power frequency interference signals.
Embodiment five
It is integrating circuit figure of the present invention as shown in Figure 10.This integrating circuit is pressed down by with power current
Input the 1001, first operational amplifier 1002, second that circuit output end 912 processed connects
Operational amplifier 1003, integrating capacitor 1004, integrating resistor 1005 and earth terminal 1006
Constitute with outfan 1007；Input 1001 is connected with the first operational amplifier 1002, the
One operational amplifier 1002 is connected with the second operational amplifier 1003 input anode, the second fortune
Calculate amplifier 1003 input cathode and outfan 1007 respectively with integrating capacitor 1004 and amassing
Sub-resistance 1005 is connected in parallel.
In the present embodiment, integrating circuit figure, compared with common RC integrating circuit, adds
One operational amplifier 1002, constitutes voltage follower, makes " the electricity of integral element and front end signal
Air bound from ", prevent impedance mismatch from causing the problem that integral element error is bigger.
Embodiment described above only have expressed the several embodiments of the present invention, and its description more has
Body is with detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.Should refer to
Go out, for the person of ordinary skill of the art, before without departing from present inventive concept
Putting, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.
Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (11)
1. transformer station's Lightning Incoming Wave on-line monitoring system, it is characterised in that including:
At least three data collection station, data-centric and remote terminal access；
Described data collection station includes Sensor Measurement Unit, microprocessor, wireless telecommunications list
Unit and power module, be installed on transforming plant lead-in end, be used for gathering transmission line of electricity A, B, C
Three-phase conducting wire Intruding wave and the electric current of power frequency, information of voltage and the most corresponding gps clock
Information is also uploaded to described data-centric；
Described data-centric is provided with the monitoring system that a set of and described data collection station is supporting
System, for and described data collection station carry out data interaction, to Intruding wave voltage, electric current
Time of origin, separate, full waveform, amplitude, steepness, polarity are analyzed and store, knot
Close power current, information of voltage, it is judged that thunderbolt type is also added up and recording different types thunderbolt
The related diagnostic data such as the amplitude of lower Intruding wave overvoltage, number of times, for the one-tenth of substation accident
Because of analysis, the insulation safety state estimation of equipment and transmission line of electricity lightning protection proficiency assessment；
Described remote terminal access is for remotely accessing by the Internet web and controlling in data
Center station is to obtain the relevant information such as lightning strike information, Intruding wave diagnostic result easily, to described number
The monitoring system supporting according to central station carries out remote parameter configuration.
Transformer station the most according to claim 1 Lightning Incoming Wave on-line monitoring system, its
Being characterised by, described Sensor Measurement Unit includes Intruding wave voltage measurement module, power-frequency voltage
Measurement module, Intruding wave current measurement module and power current measurement module.
Transformer station the most according to claim 2 Lightning Incoming Wave on-line monitoring system, its
Being characterised by, described Sensor Measurement Unit is by laying insulating barrier and electricity below device housings
Pole constitutes electric capacity and external electrode distribution capacity dividing potential drop over the ground, at the electric capacity that insulating barrier and electrode are constituted
Parallel connection sampling capacitance in two ends gathers entrance transformer station of transformer station porch for real-time online and invades
Wave voltage and power-frequency voltage signal.
Transformer station the most according to claim 2 Lightning Incoming Wave on-line monitoring system, its
Being characterised by, described Intruding wave current measurement module includes that Luo-coil, power frequency load current press down
Circuit processed, integrating circuit and Intruding wave digital to analog converter.
Transformer station the most according to claim 2 Lightning Incoming Wave on-line monitoring system, its
Being characterised by, described power current measurement module includes current transformer, second order active low pass filtered
Wave circuit, anti-phase scaling circuit and power frequency digital to analog converter.
6. according to the transformer station's lightning ingress described in any claim in claim 1 to 5
Ripple on-line monitoring system, it is characterised in that described power module uses solar energy and accumulator mutual
Join formula power supply mode or the coupling power taking of high potential magnetic core and the mode powered of accumulator interworking formula, make
Power supply for described Sensor Measurement Unit, microprocessor and radio communication unit.
Transformer station the most according to claim 6 Lightning Incoming Wave on-line monitoring system, its
Being characterised by, described microprocessor is single-chip microcomputer or DSP, for described sensor measurement list
The electric current of unit's output, voltage signal carry out data storage, process, and are sent to institute by serial ports
State radio communication unit.
Transformer station the most according to claim 7 Lightning Incoming Wave on-line monitoring system, its
Being characterised by, described microprocessor also comprises a FPGA, for Intruding wave electric current, voltage
Waveform carries out high speed acquisition, sample rate at least 2 megahertzs.
Transformer station the most according to claim 1 Lightning Incoming Wave on-line monitoring system, its
Being characterised by, described radio communication unit is including at least a GPRS DTU, for described
Data collection station and the transmission of described data-centric data communication and reception.
Transformer station the most according to claim 1 Lightning Incoming Wave on-line monitoring system, its
Being characterised by, described remote terminal access is computer or mobile terminal of mobile telephone, can be by mutually
Networking web remote access or described by the remote access of mounted thereon monitoring system client
Data-centric.
11. according to the transformer station's Lightning Incoming Wave on-line monitoring described in claim 1,9 or 10
The monitoring method of system, it is characterised in that monitoring method comprises the following steps:
Step one, described data collection station are by the Intruding wave gathered and the electric current of power frequency, voltage
Information and gps clock information corresponding respectively are uploaded in described data by being wirelessly transferred
Center station；
Step 2, described data-centric to Intruding wave voltage, the time of origin of electric current, separate,
Full waveform, amplitude, steepness, polarity diagnose and store, in conjunction with power current, voltage
Information, it is judged that thunderbolt type is also added up and Intruding wave overvoltage under recording different types thunderbolt
The related diagnostic data such as amplitude, number of times；
Step 3, described data-centric divide according to the origin cause of formation of diagnosis data analysis substation accident
Analysis, it is determined that substation accident is to be caused by station equipment fault or Intruding wave causes, and assessment is invaded
Incoming wave is on the insulation safety state of equipment and the impact in life-span and the dissimilar thunder of transmission line of electricity
Hit the affecting laws to transformer station's impact；
Diagnostic result is sent to described remote terminal access by step 4, described data center.
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| CN201510112177.5A CN106033096A (en) | 2015-03-16 | 2015-03-16 | On-line monitoring system and method for transformer station lightning invasion wave |
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| CN201510112177.5A CN106033096A (en) | 2015-03-16 | 2015-03-16 | On-line monitoring system and method for transformer station lightning invasion wave |
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| CN201510112177.5A Pending CN106033096A (en) | 2015-03-16 | 2015-03-16 | On-line monitoring system and method for transformer station lightning invasion wave |
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| CN106680574A (en) * | 2016-12-21 | 2017-05-17 | 重庆大学 | Over-voltage sensing and data processing method for substation equipment |
| CN107064735A (en) * | 2017-03-21 | 2017-08-18 | 武汉绿源楚能电网技术有限公司 | A kind of transmission line malfunction Visualized Monitoring System and method |
| CN107064848A (en) * | 2017-05-25 | 2017-08-18 | 国家电网公司 | Transmission line of electricity distributed diagnostics device check system and method |
| CN108120870A (en) * | 2016-11-29 | 2018-06-05 | 沈阳铁路信号有限责任公司 | railway station machine room lightning monitoring system |
| CN108414846A (en) * | 2018-03-08 | 2018-08-17 | 南方电网科学研究院有限责任公司 | The lightning waveform parameter Time-domain Statistics method of electric-field sensor is integrated based on optics |
| CN108761175A (en) * | 2018-05-18 | 2018-11-06 | 云南电网有限责任公司电力科学研究院 | A kind of ground potential rises detecting system and transmission line lightning stroke situation determines method |
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| CN109406945A (en) * | 2018-11-29 | 2019-03-01 | 中国电力科学研究院有限公司 | A kind of ultra-high voltage transformer station lightning surge failure rate appraisal procedure and system |
| CN110514913A (en) * | 2018-05-21 | 2019-11-29 | 南京南瑞继保电气有限公司 | A kind of substation's lightning stroke on-line monitoring method |
| CN111239547A (en) * | 2020-02-06 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Fault positioning method based on lightning overvoltage gradient transmission characteristic |
| CN111239543A (en) * | 2020-02-06 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Fault positioning method based on lightning overvoltage gradient transmission characteristic |
| CN112834808A (en) * | 2020-12-31 | 2021-05-25 | 广东电网有限责任公司电力科学研究院 | Lightning invasion wave monitoring method and system |
| CN113325265A (en) * | 2021-05-12 | 2021-08-31 | 武汉三相电力科技有限公司 | Device for detecting mixed traveling wave in power transmission line |
| CN114069855A (en) * | 2021-11-11 | 2022-02-18 | 南方电网电力科技股份有限公司 | System and method for monitoring service life of power secondary overvoltage protection equipment |
| CN116500329A (en) * | 2023-06-25 | 2023-07-28 | 泉州昆泰芯微电子科技有限公司 | Broadband current measurement method, device, system and chip |
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| CN108120870A (en) * | 2016-11-29 | 2018-06-05 | 沈阳铁路信号有限责任公司 | railway station machine room lightning monitoring system |
| CN106680574B (en) * | 2016-12-21 | 2019-04-12 | 重庆大学 | A kind of perception of substation equipment overvoltage and data processing method |
| CN106680574A (en) * | 2016-12-21 | 2017-05-17 | 重庆大学 | Over-voltage sensing and data processing method for substation equipment |
| CN107064735A (en) * | 2017-03-21 | 2017-08-18 | 武汉绿源楚能电网技术有限公司 | A kind of transmission line malfunction Visualized Monitoring System and method |
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| CN108414846A (en) * | 2018-03-08 | 2018-08-17 | 南方电网科学研究院有限责任公司 | The lightning waveform parameter Time-domain Statistics method of electric-field sensor is integrated based on optics |
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| CN110514913A (en) * | 2018-05-21 | 2019-11-29 | 南京南瑞继保电气有限公司 | A kind of substation's lightning stroke on-line monitoring method |
| CN108957109A (en) * | 2018-08-17 | 2018-12-07 | 广东电网有限责任公司江门供电局 | A kind of lightning induced voltage monitoring device |
| CN109406945B (en) * | 2018-11-29 | 2022-12-09 | 中国电力科学研究院有限公司 | Lightning overvoltage fault rate evaluation method and system for extra-high voltage transformer substation |
| CN109406945A (en) * | 2018-11-29 | 2019-03-01 | 中国电力科学研究院有限公司 | A kind of ultra-high voltage transformer station lightning surge failure rate appraisal procedure and system |
| CN111239547A (en) * | 2020-02-06 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Fault positioning method based on lightning overvoltage gradient transmission characteristic |
| CN111239543B (en) * | 2020-02-06 | 2021-09-03 | 云南电网有限责任公司电力科学研究院 | Fault positioning method based on lightning overvoltage gradient transmission characteristic |
| CN111239547B (en) * | 2020-02-06 | 2022-05-20 | 云南电网有限责任公司电力科学研究院 | Fault positioning method based on lightning overvoltage gradient transmission characteristic |
| CN111239543A (en) * | 2020-02-06 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Fault positioning method based on lightning overvoltage gradient transmission characteristic |
| CN112834808A (en) * | 2020-12-31 | 2021-05-25 | 广东电网有限责任公司电力科学研究院 | Lightning invasion wave monitoring method and system |
| CN112834808B (en) * | 2020-12-31 | 2023-02-17 | 广东电网有限责任公司电力科学研究院 | Lightning invasion wave monitoring method and system |
| CN113325265A (en) * | 2021-05-12 | 2021-08-31 | 武汉三相电力科技有限公司 | Device for detecting mixed traveling wave in power transmission line |
| CN114069855A (en) * | 2021-11-11 | 2022-02-18 | 南方电网电力科技股份有限公司 | System and method for monitoring service life of power secondary overvoltage protection equipment |
| CN116500329A (en) * | 2023-06-25 | 2023-07-28 | 泉州昆泰芯微电子科技有限公司 | Broadband current measurement method, device, system and chip |
| CN116500329B (en) * | 2023-06-25 | 2023-09-12 | 泉州昆泰芯微电子科技有限公司 | Broadband current measurement method, device, system and chip |
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