CN107390023A - A kind of power network electrical quantity broadband multi-frequency measurement apparatus and its implementation - Google Patents
A kind of power network electrical quantity broadband multi-frequency measurement apparatus and its implementation Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
Abstract
The present invention relates to a kind of power network electrical quantity broadband multi-frequency measurement apparatus and its implementation, including bus backplane, and it is inserted in wideband sampling plate, data storage plate, data transfer plate, data calculating analysis plates and the power panel of bus backplane；Wideband sampling plate is used for analog quantity sampled data；The data transfer plate can be used for the frequency dividing transmission of digital quantity sampling, analog quantity and digital quantity sampled data；Data calculate analysis plates and are used for the calculating of data and the analysis of result, and will calculate and externally be transmitted with analysis result；Data storage plate is used to store sampled data, calculates analyze data and recorded wave file.The present invention can provide strong monitoring means for the monitoring of grid power electronization with control, the complicated data-acquisition loop of transformer station's Current redundant can effectively be simplified, the development construction of power network for transformer station and towards power electronics provides measurement solution, to ensure the electricity net safety stable of power electronic equipment extensive application, promoting new energy large-scale application to provide powerful guarantee.
Description
Technical field
The present invention relates to field of electric power automation, and in particular to a kind of power network electrical quantity broadband multi-frequency measurement apparatus and in fact
Existing method.
Background technology
With the utilization of extensive regenerative resource and the development of intelligent grid and THE UPFC (Unified
Power flow controller, UPFC), STATCOM (Static Synchronous Compensator,
STATCOM), Thyristor Controlled Series Capacitors (Thyristor Controlled Series Compensation, TCSC) etc.
Novel electric power electric equipment constantly puts into operation, and the disturbing phenomenon such as mains by harmonics interference, sub-synchronous oscillation is more frequent, power network
The trend of wide frequency domain is presented in harmonic wave, needs badly and improves monitoring capability of the power network to different frequency disturbance component, reduces operation of power networks wind
Danger.
Currently, the new energy such as D.C. high voltage transmission, flexible AC transmission technology (FACTS) and large-scale photovoltaic wind-powered electricity generation accesses
The high-frequency signal of a large amount of fast transients is brought to power network, existing e measurement technology sample frequency is relatively low, it is difficult to adapts to high-frequency signal
Measurement demand.Sample frequency in current intelligent substation is only 80 points/cycle (4kHz), although meeting protection, observing and controlling
The sample requirement of kind equipment, but sample frequency is still relatively low, can not meet the data such as metering, electric energy quality monitoring (12.8k)
Measurement demand.As a large amount of reactive power compensators, novel electric power electric equipment are in the extensive use of transformer station, these are based on full control
Or the power electronic equipment of half control device, run in a manner of pulsewidth modulation (PWM), switching speed reaches Millisecond even microsecond
Level, the harmonic wave of a large amount of wide frequency domains, high frequency time characteristic can be injected to power network, these harmonic waves have the characteristic of fast transient, existing
Sample frequency is difficult to meet to require.
Secondly, the existing DATA REASONING technology of transformer station can not be surveyed to sub-synchronous oscillation, higher hamonic wave noisy data
Amount, and it is difficult to the influence after reply grid power electronization to data measurement accuracy.Existing measure and control device is only capable of surveying in transformer station
The voltage and current amount under stable state is measured, and only reaches the measurement of 13 order harmonic components；PMU devices are mainly used to monitor 45-55Hz
In the range of power frequency component amplitude and phase angle, can not be directed to low-frequency vibration signal and time/signal, 13 subharmonic of supersynchronous vibration
Higher hamonic wave signal above measures.Although quality of power supply device can monitor higher hamonic wave, low in being mainly used in
The power distribution network of pressure, the equipment applied to grid is less, and existing equipment for monitoring power quality can only measure 50 times it is humorous
Ripple, it can not also meet measurement and the analysis demand of a large amount of higher hamonic wave signals that a large amount of power electronic equipments are brought to power network.
In addition, the existing data acquisition of transformer station is set according to different application class, measuring loop redundancy is not only gathered
It is complicated, and the electric network fault analysis comprehensive data of offer system are provided, there is an urgent need to carry out whole station unified measurement technology
Research, the quick analysis and diagnosis of grid disturbance are realized at plant stand end, and new branch is provided to electric network fault analysis for scheduling station
Support means.At this stage, measure and control device often focuses on steady state data measurement in transformer station, and PMU focuses on dynamic data measurement, therefore
Barrier wave recording device focuses on transient measuring, and these equipment are set both for a certain specific run behavior of power network, and different
The demand of application and different sample frequencys is respectively adopted, sampled measurements loop repeat configure, add whole station data acquisition survey
The complexity of amount, it is necessary to same data source carry out unified measurement, be bulk power grid analysis and for provide system, comprehensively
Data.
The content of the invention
To solve above-mentioned deficiency of the prior art, it is an object of the invention to provide a kind of survey of power network electrical quantity broadband multi-frequency
Device and its implementation are measured, new supporting method can not only be provided with control for measurement, the analysis of power network electrical quantity, simultaneously
Also it can effectively simplify the complicated acquisition circuit of whole station redundancy, can not only be large-scale application, the direct current network of new energy
The development of development construction, flexible AC power network provides new measurement means, while can also effectively simplify the number inside transformer station
Data bulk, further reduce the construction cost of whole station.
The purpose of the present invention is realized using following technical proposals：
The present invention provides a kind of power network electrical quantity broadband multi-frequency measurement apparatus, and it is theed improvement is that, is installed on transformer station
Wall and process layer between, described device includes being inserted in the wideband sampling plate, data storage plate, data transfer of bus backplane
Plate, data calculate analysis plates and power panel, and the wideband sampling plate includes being used for the wideband sampling of analog quantity sampled data access
Plate；The digital quantity sampled data collected is transferred to data and calculates analysis plates and data memory plane by the data transfer plate.
Further, the wideband sampling plate includes fpga chip, A/D conversion chips and sample frequency setting module；
The sample frequency setting module is used to set the wideband sampling plate highest sample frequency and adopt in the highest
The actual sample frequency of sample frequency range periodically setting；
The fpga chip is used to read analog quantity sample frequency；
The A/D conversion chips are used to ensure sampled data precision.
Further, frequency dividing transmission board of the data transfer plate including being used for the access of digital quantity sampled data, described point
Keep pouring in input board and be used for the sampled data obtained to leniently frequency sampling plate or the sampled data itself received according to external custom
Demand is transmitted；
Further, the frequency dividing transmission board is additionally operable to receive outside message and stored；
The outside message includes：IEC61850-9-2 messages and IEC60044-8 messages, as reception IEC61850-9-2
During message, the IEC61850-9-2 packet samplings data reduction of 32 is stored into 16 sampled datas；Work as reception
During IEC60044-8 messages, IEC60044-8 messages are directly stored.
Further, the data transfer plate includes sampling clock, and the sampling clock is with the clock section of wideband sampling plate
Play the standard time clock as sampled data storage.
Further, the data storage plate includes Coutinuous store space, USB2.0 ports, Ethernet interface and DVI-I
Display interface and data storage method judge module；
The storage mode judge module is used to deposit data using corresponding mode according to no storage mode
Storage, including：
(1) mode of continuous rolling storage, including all sampled datas carry out segmentation according to the time span of setting and deposited
Storage, the data of each file are since whole moment second, untill the duration of setting；
(2) Coutinuous store mode, including proceed by rolling from the file of oldest stored again after memory space is filled with and deposit
Storage；
(3) storage mode is triggered, triggering company when being included in trigger condition when external environment condition meets to detect grid disturbance
Storage is renewed, stops data storage when external environment condition is unsatisfactory for trigger condition；
(4) sampled data of storage is externally transmitted by Ethernet interface, its transmission means includes the setting stand-by period, set
Determine file storage size and wait outside calling mode.
Further, the data transfer plate includes 2 road 1000M network interfaces and 6 road 100M Ethernet interfaces, supports IEEE1588
During with IRIG-B pairs；
Preferably, data transfer plate includes preprocessing function module, and the preprocessing function module includes pretreatment and sampled
The transfer function of data, for voltage, the amplitude of electric current, phase angle, frequency, the wattful power for being calculated data calculating analysis plates
Rate, reactive power and power factor (PF) electrical quantity are divided by way of GOOSE message is transferred to transformer station's wall secondary device；
Preferably, the data transfer plate also includes the first transport module, the second transport module, the 3rd transport module and the
Four transport modules；
First transport module is used to receive external digital amount sampled data, and the sampled data of reception is transferred into number
According to memory plane；
Second transport module is used for the Multi-frequency measuring device for multi simultaneously using the access of digital quantity hits and analog quantity
When sampled data accesses two ways, the collection storage step of whole data is gathered with the analog quantity sampled data of wideband sampling plate
It is defined；
First transport module is used for the wideband sampled data for accessing analog acquisition data or digital quantity hits
Transmitted by the form group bag of IEC61850-9-2 messages, IEC60044-8 messages；
First transport module is used to access analog quantity sampled data or the wideband of digital quantity hits access samples
Initial data uses IEC61850-9-2 and IEC60044-8 side according to transmission, transmission protocol is divided after customized demand interpolation calculation
Formula.
Further, the data transfer plate also includes the first frequency dividing transport module and the second frequency dividing transport module；
The transmission for the original sampling data that the first frequency dividing transport module is used under analog quantity access way is according to setting
Sample frequency set the transmitting message to include sampled data Application service data unit ASDU quantity；
The frequency dividing transmission that the second frequency dividing transport module is used for original sampling data is customized transmission as needed：When
When original sampling frequency is the integral multiple of the sample frequency of external custom, sampled data is externally transmitted by way of snap shot, is passed
Defeated form supports IEC61850-9-2 forms and IEC60044-8 forms；When original sampling frequency is not the sampling of external custom
During the integral multiple of frequency, row interpolation is entered to original sampling frequency according to sample frequency, according still further to IEC61850-9-2 and
IEC60044-8 form outwards transmits sampled data；Support the parallel transmission of multichannel difference custom frequencies.
Further, the data, which calculate analysis plates, includes 4 groups of 100M Ethernet interfaces, for handling hits in real time
According to including the frequency categorization of the sampled data carried out successively, the digitized filtered of sampled data, and the frequency domain of signal, time domain
The classification processing and calculating combined with time-frequency；
Preferably, the frequency categorization of the sampled data includes：Low-frequency signal components module, power frequency component component module and
Harmonic wave and m-Acetyl chlorophosphonazo high frequency component signal module；
The low-frequency signal components module is used for after disturbing high frequency components therein are filtered out after wave digital lowpass filter,
Signal extraction based on curve matching and the signals revivification algorithm based on measurement phasor, time-domain and frequency-domain algorithm is cooperated
Supplement, realize that frequency, amplitude, the parameter of attenuation coefficient calculate；
The power frequency component component module is used for then after bandpass filtering, using the dynamic phase based on Adaptive time window
Measuring method, realize that high accuracy, highdensity electric parameter calculate.
The harmonic wave of the resolution, m-Acetyl chlorophosphonazo component module are used for the low-frequency component and height that signal is first filtered out through bandpass filter
After frequency noise component(s), then through and improvement the electric parameter that Interpolating Window FFT Algorithm analyzes each component；For unresolvable humorous
Ripple and m-Acetyl chlorophosphonazo frequency component, then pass through the ZoomFFT Frequence zooming algorithms based on multiple modulation, realize close harmonic wave, m-Acetyl chlorophosphonazo
The parameter of component calculates.
Further, in addition to substation module is analyzed and processed, be used for：
Data are calculated with preprocessed data, the Calculation results data realization visual presentation that analysis plates are transmitted；
The sampled data of data storage plate is all stored to master system and preserved for a long time, the mode of reception uses quilt
It is dynamic to receive and actively call two ways；
Systematic Analysis calculating is carried out to the data of reception, and the power network electrical quantity spectrogram being calculated, voltage is electric
Flow the displaying of amplitude result visualization；
Systematic Analysis and diagnosis are carried out to the sampled data of reception, and provide analyzing and diagnosing result.
The present invention also provides a kind of implementation method of power network electrical quantity broadband multi-frequency measurement apparatus, and it is theed improvement is that：
Wideband sampling plate gathers analog quantity sampled data, and is transferred to data by data storage plate and calculates analysis plates sum
According to transmission board；
Data transfer plate receives the sampling message of external digital, realizes digital data acquisition, and the digital quantity of reception is adopted
Sample data are transferred to data and calculate analysis plates and data memory plane；
The sampled data or the sampled data of itself reception that data transfer plate obtains leniently frequency sampling plate are according to outside
The demand of customization is transmitted；
Data calculate analysis plates and data processing are carried out to analog quantity sampled data and digital quantity sampled data, and by after processing
Sampled data be transferred to analyzing and processing substation module；
Data storage plate is after the sampled data of wideband sampling plate or data transfer plate is received, according to the situation of setting
Carry out data storage.
Further, the sampled data after processing is transferred to analyzing and processing substation module, including：When according to result of calculation
When judging that grid disturbance occurs or disappeared, disturbance can be occurred or disappearance information is transferred to data storage by bus backplane
Plate；
Preferably, according to the situation of setting come data storage, including：Roll and deposit always if Coutinuous store is provided that
Storage, if being provided that, trigger-type stores, and restarts or stop storage after receiving data and calculating analysis plates disturbance information.
Compared with immediate prior art, the excellent effect that technical scheme provided by the invention has is：
Problem to be solved by this invention connects on a large scale aiming at high voltage dc transmission technology, FACTS technologies, new energy
Enter traditional power network is brought increasingly frequently harmonic wave interference, sub-synchronous oscillation the problems such as be research object, for existing measurement skill
Art can not comprehensively, power network broadband multi-frequency signal after accurate measurement grid power electronization, can not be that current electric grid runs and controlled
The problems such as providing accurate, reliable data conducts a research, and proposes power network electrical quantity broadband multi-frequency unified measurement method and develops phase
Measuring apparatus has been closed, strong monitoring means can not only be provided with control for the monitoring of grid power electronization, while also can
Effectively simplify the complicated data-acquisition loop of transformer station's Current redundant, be the hair of transformer station or even the power network towards power electronics
Exhibition, which is built, provides new measurement solution, to ensure the electricity net safety stable of power electronic equipment extensive application, promoting new energy
Source large-scale application is provided with powerful guarantee.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram of power network electrical quantity broadband multi-frequency measurement apparatus provided by the invention；
Fig. 2 is the system construction drawing of power network electrical quantity broadband multi-frequency measurement apparatus provided by the invention；
Fig. 3 is the flow chart that power network electrical quantity broadband multi-frequency measurement apparatus data provided by the invention are calculated and handled.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to
Put into practice them.Other embodiments can include structure, logic, it is electric, process and other change.Embodiment
Only represent possible change.Unless explicitly requested, otherwise single component and function are optional, and the order operated can be with
Change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair
The scope of bright embodiment includes the gamut of claims, and claims is all obtainable equivalent
Thing.Herein, these embodiments of the invention can individually or generally be represented that this is only with term " invention "
For convenience, and if in fact disclosing the invention more than one, the scope for being not meant to automatically limit the application is to appoint
What single invention or inventive concept.
The present invention is for current D.C. high voltage transmission, flexible AC transmission technology (FACTS) and large-scale photovoltaic wind-powered electricity generation etc.
Access produces the broadband multiple-frequency signals such as secondary/supersynchronous vibration, m-Acetyl chlorophosphonazo, higher hamonic wave, pin to existing power network to new energy on a large scale
The problems such as limitation to current electric grid measurement, redundant configuration of data-acquisition loop, proposes that new suitable power network broadband multi-frequency is believed
Number unified measurement device and its implementation, new branch can not only be provided for the measurement of power network electrical quantity, analysis and control
Support means, while also can effectively simplify the complicated acquisition circuit of whole station redundancy, can not only be new energy large-scale application,
The development of the development construction, flexible AC power network of direct current network provides new measurement means, while can also effectively simplify power transformation
Data bulk inside standing, further reduce the construction cost of whole station.
The present invention provides a kind of power network electrical quantity broadband multi-frequency measurement apparatus, its hardware structure diagram as shown in figure 1, including：
Power panel：220V combined-voltages are accessed, power supply is provided for device；
Wideband sampling plate：The analog quantity access of 4 road voltages, 4 road electric currents can be accessed, the precision of A/D samplings is 16, is adopted
With the high frequency samplings of FPGA；
Data storage plate：With 500G memory spaces, 4 USB2.0 ports, 2 1000M Ethernet interfaces and 1 DVI-
I display interfaces；
Data transfer plate：With 2 road 1000M network interfaces, when supporting IEEE1588 and IRIG-B pairs, there is 6 road 100M transmission
Network interface, realizes the frequency dividing transmission of message, while can also receive the sampled data of external digital；
Data calculate analysis plates：The voltage of processing collection in real time, current data, have 4 groups of 100M Ethernet interfaces, support
The external transmission of data；
Bus backplane：The insertion of all plates, realize the interaction and transmission of information between plate.
The system construction drawing of power network electrical quantity broadband multi-frequency measurement apparatus as shown in Fig. 2 the function of wherein each plate and
Effect is as follows：
Gathered data：Device highest sample frequency involved in the present invention can reach 500k/s, but can be according to reality
Demand is manually set, i.e., is related to the sample frequency being actually needed during device hardware module initializes, as long as institute
The sample frequency of setting is not higher than 500k/s.Certainly, present invention sample frequency involved at this stage is 500k/s, from now on
It can be lifted after HardwareUpgring higher.Collection for high-frequency data, can specifically there is two ways, and one kind is traditional analog
Access way is measured, one kind is digital quantity access way, specific as follows：
1) for the access of analog acquisition data, realize that there is 4 road voltages, electric current by device wideband sampling plate
After signal access wideband sampling plate, the FPGA in wideband sampling plate can read analog quantity hits according to the frequency cycle of setting
According to.The precision of A/D sampling A/D chips is 16 in wideband sampling plate, can effectively ensure that the precision of sampled data, with A/D from now on
The upgrading of chip, it can also use the A/D conversion chips of 24 and higher precision.Adopted as the actual sample frequency of device in highest
Flexibly set, and can be configured in device initialization in sample frequency range, but the sample frequency set is necessarily less than device
Highest sample frequency.The highest sample frequency that the present apparatus is supported at present is 500k/s, therefore set actual samples frequency
No more than it.
2) for digital data acquisition data access, realized by data transfer plate, data transfer plate can access outside
IEC61850-9-2 messages, IEC60044-8 messages, the sampled data received according to the sampling period storage of its message.When connecing
Receive for IEC61850-9-2 messages when, because the numerical value of voltage in the stipulations, electric current is all 32 sub-values, its voltage is most
Subsection 10mV, the least unit of electric current is 1mA, therefore is needed first according to external voltage, current transformer in specific storage
No-load voltage ratio obtain its primary voltage, current value, afterwards according to virtual voltage, current value and rated primary voltage, the ratio of electric current,
Code value scope-32767-32768 according to 16 data is converted, and the sampled data of 32 is converted into 16 hits
According to being preserved.When reception for IEC60044-8 messages when, be natively 16 because it transmits sampled data, therefore can be with
Directly store.
When device uses two kinds of access ways of analog quantity and digital quantity simultaneously, the samples storage clock of whole data is with mould
Analog quantity access way is defined, i.e., the standard time clock of data storage is used as using the clock rhythm of wideband sampling plate.
The storage of sampled data.
The data storage plate has following characteristics, specific as follows：
(1) data storage can be by the way of continuous rolling storage, and all data are carried out according to the time span of setting
Segmentation storage, the data of each file are since whole moment second, untill the duration of setting；
(2) data storage may be set to Coutinuous store mode, i.e., uninterruptedly stores all data, when memory space is filled with
Proceed by rolling storage from the file of oldest stored again afterwards.
The data storage device that the data storage card of apparatus of the present invention uses, specifically can be according to actual conditions for 500G hard disks
To be adjusted and replace, such as when using memory module is triggered, required hard drive space can reduce.Subsequently treat massive store
When hard disk or suitable other storage device cost performances, 1T or bigger storage device can be also used.When outside uses analog quantity
During access way, the data storage plate of device can carry out data storage according to the dimension of time, specifically during storage in seconds,
Generally the time of data storage plate acquiescence be 10s, i.e., the storage time yardstick of each data file is 10 seconds, such as from
AM9：40：12-AM9：40：22 (hours/point/second) etc., specific time interval can manually be set, the foundation manually set
It is to be determined by sample frequency.When sample frequency is of a relatively high, the data of storage per second are larger, thus each file set when
Between interval be not easy long, otherwise single file is excessive.By taking highest frequency 500k/s as an example, the time interval of its data storage is
10s, the size of so each storage file is about in 25M or so.When sample frequency is relatively low, its sample frequency can suitably prolong
Long, such as when sample frequency is only arranged to 100k/s, the time span that data can be split to storage is arranged to 50s or 60s i.e.
Can.Certainly, it is above-mentioned both for file division is stored by the time span of setting in the way of, when device is mobile as scene
During samples storage equipment application, its mode stored can select the segmentation storage of uneasy time span, i.e., latter from starting to sample
Straight Coutinuous store, untill manual operation allows it to stop, now the total data of whole period is all written into a data
In file.Certainly, such a mode is suitable only for the crawl analysis use of sampled data in the short time, is typically only a few minutes to tens
The time of minute.
(3) data storage may also be configured to the mode of triggering storage, meet that trigger condition (detects power network in external environment condition
During disturbance) when trigger Coutinuous store, stop data storage when external environment condition is unsatisfactory for trigger condition.
In addition to the Coutinuous store of data, data storage plate also has the mode of triggering storage, i.e., normal in operation of power networks
Although still related data does not store for sampling in the case of, starts the storage of data only in the case of the failure of setting, specifically
Trigger condition is set by manually setting.Under data-triggered memory module, the Coutinuous store always once store function is triggered, until
Dependent failure stops storing again after disappearing, and data of all storages can be deposited as a complete file during this
Storage, because the time of failure is generally shorter.Certainly, above-mentioned storage mode is only when storage of the sample frequency less than 100k/s is handled
Mechanism.When sample frequency is higher than 100k/s, whole file can be larger after considering continuous several minutes of storages, thus can to its according to
500M or so size carries out segmentation storage, and the foundation of segmentation is still on the basis of data per second.It is in addition, either continuous
Storage or triggering storage, all data all enter line access according to COMTRADE form at present, certainly when data export
Also the modes such as COMTRADE, TXT, EXCEL may be selected to obtain associated documents, specific mode can be selected flexibly.
(4) sampled data of storage can be externally transmitted by the network port, specifically there are three kinds of transmission means, is setting respectively
Stand-by period, setting file storage size and the outside calling of wait.
Data storage plate also has the interface of externally transmission data simultaneously, and externally transmission has three kinds of different modes to data：
One kind is the setting stand-by period, and one kind is setting file storage size, and another just waits for outside calling.When setting waits
Between refer to device data storage on send interval, avoid frequently sending report, also be understood as the time interval sent every time.
Setting file storage size refers to when the space of device internal data store reaches setting value, and it is related to start outwards transfer transmission
Data, prevent data from rolling covering of the storage to data storage in the early time after being filled with.Because data storage plate is according to being according to the time
Node-classification data storage, after Coutinuous store data cause memory space to expire, new data can be from oldest stored
Position starts to be newly stored into new data, and the original sampling data of oldest stored is covered with this, realizes that the rolling of whole data is deposited
Storage.The outside calling of data storage refers to that the data of associated storage both do not need timing transmission, it is not required that anti-memory space overflows
Go out transmission, it is only necessary to wait outside calling, the specified data of needs are transmitted according to the demand of outside calling.In this pattern
Under, if outside never have data calling order, then whole data just roll storage.Certainly, above-mentioned three kinds of transmission modes are all
It is to be directed to the realization mechanism in the case of data Coutinuous store；According to be triggering memory module, due to that need not connect for a long time
Storage is renewed, therefore only needs to use outside calling pattern, realizes the transmission of external data.
(5) can external connection display, mouse, keyboard, realize data storage visual presentation and calculate analysis.
The hard disk of data storage intralamellar part can be with installation and operation Windows operating system, and the USB interface having by it connects
The external equipments such as mouse and keyboard are connect, external display is connected by its digital visual interface-i interface, realize the file progress to data storage
Displaying and analysis.
Data transfer.The data meeting real-time Transmission of wideband sampling calculates analysis plates to data transfer plate and data, and data pass
Input board is mainly used for sampled data carrying out frequency dividing transmission according to the demand of external custom, and 2 1000M Ethernet interfaces are used for pair
Outer transmission original sampling data, two standby each other；In 6 100M Ethernet interfaces, 1 is used for receiving external sampling data, 1
For transmitting pretreatment or analysis result data to substation, while the order that substation is assigned is received, 4 are used for realizing in addition
External frequency dividing transmission, according to different transmission frequencies different ports can be selected externally to transmit.
Its implementation process is as follows：
1) for the sampled data of analog quantity access way, data transfer plate can be based on first IEC61850 and
The mode of IEC60044-8 forms transmits original sampled data, and this link is similar to intelligent substation present day analog amount
Combining unit, realize the digitlization of analog quantity sampled data.In addition to transmitting original sampling data, data transfer plate can also be real
The frequency dividing transmission of existing data, because the frequency of original sampling data is higher, and the frequency required for the miscellaneous equipment in transformer station
It is relatively low, therefore, it is necessary to the data of wideband sampling are subjected to frequency reducing or frequency dividing transmission.If the sample frequency of device sampling plate is fixed
The integral multiple of frequency processed, then directly according to multiple from original sampling data snap shot, such as：If the sample frequency of device is
100k/s, and the sample frequency customized is 4k/s, because sample frequency is just the integral multiple (25 times) of custom frequencies, thus it is former
Beginning high frequency sampled data can just be extracted with every 25 points and once realize that the frequency dividing of data transmits；If the sample frequency of device sampling plate
It is not the integral multiple of custom frequencies, then needs to carry out interpolation calculation, such as：If device sample frequency is 100k/s, and what is customized adopts
Sample frequency is 4.8k/s, because sample frequency is just non-integral multiple (100/4.8) of custom frequencies, it is therefore desirable to only part number
According to can therefrom extract, largely need to mark according still further to IEC61850-9-2 standards or IEC60044-8 after carrying out interpolation calculation
Quasi- group bag transmission, interpolation algorithm when data divide transmission can select according to concrete application, and the present apparatus has selected three at present
Rank Lagrange's interpolation algorithm realizes the interpolation calculation of data, certainly, new with the Bu Duan Eng of technology, also can be according to actual feelings
Interpolation algorithm is improved by condition.When the frequency externally transmitted is higher, to reduce the load of device processing, often adopted multiple
Sample data combine transmission, i.e., are transmitted using multiple ASDU form group bag, organize bag number can with flexible configuration, such as 2
Individual ASDU, 3 ASDU, 8 ASDU etc., so can will continuous multiple sampled datas combinations in a frame message to unofficial biography
It is defeated, and then the efficiency of transmission of data is improved, reduce the real-time processing load of device.
2) for digital quantity access way, the data transfer plate of device receive outside sampling message, then transmitted
Analysis plates are calculated to data storage plate and data, what it is due to the reception of data transfer plate is outside high frequency sampling message, therefore it
Can be according to the customized demand of outside, frequency dividing is transmitted after the high frequency sampled data of outside access is carried out into interpolation calculation, and it is divided
The mode of transmission is identical with analog quantity access way.
Because device involved in the present invention is the source of high frequency sampled data, and other secondary device quantity in transformer station
Also it is more, therefore data transfer plate occurs while outwards transmits the message of one or more kinds of different frequencies, for example device is set
The sample frequency put is 100k/s, but can be according to a variety of demands of outside, it is necessary to transmit out 4k/s, 12.8k/s sampling respectively
Data, sampling transmission board need to handle transmission simultaneously.In addition, data transfer plate also needs to believe during synchronous pair outside reception
Number, device is at present using mode at IRIG-B pairs, while mode when can also support IEEE1588 networks pair, can will be synchronous right
Mistiming difference is reduced within 1us., can be with when sampled data is carried out into frequency dividing transmission when the outside pair of reception after signal
The sequence number for sampling message is zeroed out on the basis of the rising edge of pulse per second (PPS), ensured with this under a variety of frequency dividing transmission demands, sampling
The synchronism that data are sent.
The data transfer plate has the frequency dividing transfer function of sampled data specific as follows：
(1) the sampling message under external digital mode can be received, and the sampled data received is transferred to data
Memory plane；
(2) when device voluntarily gathers two ways using access outside sampling message and analog data simultaneously, device
The collection storage step of internal data is defined by the analog data collection of wideband sampling plate.
(3) the wideband sampled data under analog acquisition data or outside message access way can be passed through IEC61850-
The form group bag transmission of 9-2 messages, IEC60044-8 messages；
(4) can be by the wideband sample source data under analog quantity access way or digital quantity access way according to customized demand
Transmission is divided after interpolation calculation, transmission protocol uses IEC61850-9-2 and IEC60044-8 modes.
Frequency dividing transmission has the characteristics that, specific as follows：
(1) transmission of the original sampling data under analog quantity access way can set transmission report according to the sample frequency of setting
Text includes sampled data ASDU quantity.
(2) the frequency dividing transmission of original sampling data can be customized transmission as needed：When original sampling frequency is outer
During the integral multiple of the sample frequency of portion's customization, sampled data can be externally transmitted by way of snap shot, the form of transmission is still
Support IEC61850-9-2 forms and IEC60044-8 forms；When original sampling frequency is not the whole of the sample frequency of external custom
During several times, row interpolation can be entered to original sampling frequency according to the sample frequency according to external custom, then according still further to IEC61850-
9-2 and IEC60044-8 form outwards transmits sampled data；
(3) parallel transmission of multichannel difference custom frequencies can be supported simultaneously.
The transmission of above-mentioned data is all based on sampled data transmission, the either frequency dividing after original sampling data or interpolation
Sampled data, its transmission is all undressed data.Data transfer plate can also divide transmission preprocessed data, i.e., in data
Calculate analysis plates and calculate the electricity such as line voltage, the amplitude of electric current, phase angle, frequency, active power, reactive power and power factor (PF)
After tolerance, these data frequency dividing directly can be transferred to the other wall secondary devices of transformer station (such as protection, measure and control device
Deng), its transmission frequency can need manually to set according to, such as 50Hz, i.e., transmission per second once, is transmitted to observing and controlling dress
Put, the data of measure and control device can be avoided to calculate.
And for wideband measurement apparatus and observing and controlling, the direct transmission protocol of layer equipment is then transmitted using GOOSE message at equal intervals
Data result of calculation, it is easy to reception of the measure and control device to preprocessed data：Preprocessed data can be by data including data transfer plate
Calculate voltage, the electricity such as amplitude, phase angle, frequency, active power, reactive power and power factor (PF) of electric current that analysis plates are calculated
Tolerance is divided by way of GOOSE message is transferred to the other wall secondary devices of transformer station.
The processing of sampled data is calculated, and power network electrical quantity broadband multi-frequency measurement apparatus data are calculated with the flow chart of processing such as
Shown in Fig. 3：
For the wideband sampled data of device collection, the data of device, which calculate analysis plates, to be carried out first to signal at classification
Reason, i.e., same signal are divided into low-frequency signal components, power frequency component component and harmonic wave and m-Acetyl chlorophosphonazo high frequency component signal three
Class, signal is filtered respectively again afterwards.Digitized LPF algorithm is used for low frequency signal；For power frequency component
Amount, harmonic wave and m-Acetyl chlorophosphonazo component use digitized bandpass filtering algorithm.After this filtering link, the data in same source
Be split into low frequency, power frequency and the class of high-frequency signal three, then various types of signal use again each different algorithm calculated with
The electric characteristic amount of signal is obtained, such as frequency, amplitude, phase angle are specific as follows：
(1) for low-frequency signal components, after disturbing high frequency components therein are filtered out after wave digital lowpass filter, it is based on
The method for extracting signal of curve matching and the signals revivification algorithm based on measurement phasor, time-domain and frequency-domain algorithm is cooperated
Supplement, realizes frequency, amplitude, the parameter Estimation of attenuation coefficient.
(2) for power frequency component, then after bandpass filtering, using the dynamic phasor measurement side based on Adaptive time window
Method, realize that high accuracy, highdensity electric parameter calculate.
(3) for harmonic wave, the m-Acetyl chlorophosphonazo component that can differentiate, the low-frequency component and height of signal are first filtered out through bandpass filter
After frequency noise component(s), then through and improvement the electric parameter that Interpolating Window FFT Algorithm analyzes each component, such as frequency, amplitude；For
Unresolvable harmonic wave and m-Acetyl chlorophosphonazo frequency component, then pass through the ZoomFFT Frequence zooming algorithms based on multiple modulation, realize close
Harmonic wave, the parameter Estimation of m-Acetyl chlorophosphonazo component and calculating.
Certainly, the algorithm of above-mentioned low frequency signal, power frequency component and high-frequency signal also can be constantly improved and perfect, this hair
The bright mode for only proposing that one of which is realized herein, if realizing that the processing of broadband signal will also belong to by innovatory algorithm from now on
The protection category of the present invention.
Modulation recognition processing and calculating are to also add to prevent spectrum leakage and spectral aliasing frequency spectrum restrainable algorithms, by adding
Window computing suppresses long scope leakage, i.e., error caused by the leakage between harmonic wave；Short scope is eliminated by interpolation arithmetic to leak, i.e. grid
Error caused by column effect.
After the processing for completing data is settled accounts with analysis, the data of device, which calculate analysis plates, can also will calculate the knot of analysis
Fruit is transferred to the other station level equipment of transformer station, such as monitoring system, telemechanical gateway machine, can also be transmitted to wideband measurement number
According to the substation system of analyzing and processing, upper computer software can be also simply referred to as, and in particular to the transmission and calculating analysis of preprocessed data
As a result transmission：
(1) transmission of preprocessed data is realized.Pass through IEC61850MMS either IEEE C37.118 or proprietary protocol
Mode transmits the voltage calculated, current amplitude, phase angle, frequency, active power, reactive power etc., and externally transmission pre-processes
Data.
(2) for the transmission of Calculation results.Power network amplitude, the frequency characteristic calculated by comparative analysis, to hair
Existing exception is alerted and lifted, by it by way of IEC61850MMS either IEEE C37.118 or proprietary protocol
It is transferred to other external equipments in upper computer software or transformer station.
Transmission means mainly employs used by above-mentioned preprocessed data and Calculation results data
IEC61580MMS, IEEEC37.138 and three kinds of modes of proprietary protocol.Transformer station is transferred to if desired for by data and analysis result
Telemechanical gateway machine, then can using IEC61850MMS communication by the way of；If desired the PMU transmitted data and analysis result is wide
Domain measurement system, then IEEE C37.118 modes can be selected, certainly, if PMU WAMSs support IEC61850, can also adopt
The mode to be communicated with IEC61850MMS.As for the mode of proprietary protocol, then mainly wideband measurement apparatus ties data and analysis
Fruit is transferred to the substation system (upper computer software) of the wideband measurement data analyzing and processing of oneself, certainly, privately owned in such cases
Agreement is only a kind of mode of convenient realization, and IEC 61850MMS communications or IEEE can be also used according to actual conditions
C37.118 modes are transmitted.Data calculate analysis plates and are configured with 3 groups of 100M network interfaces, and one of them is used for IEC61850MMS messages
Transmission, one is used for IEEE C37.118 stipulations and transmits, and another is used for the transmission of proprietary protocol.Certainly, the present invention is limited to
Current condition, only there is provided 3 network interfaces, subsequently can progressively to 6 extension network interface quantity, realize IEC 61850MMS messages,
The double-network redundant of IEEE C37.118 agreements and proprietary protocol transmits.
Analyze and process substation system (upper computer software)：Wideband sampled data analyzing and processing substation system inside transformer station
The preprocessed data that device transmits can be visualized, Calculation results are carried out with alarm carry by (upper computer software)
Show, while be also capable of the sampled data of reception device.
When device sampling timing sends or set memory space mode to send data, can be sent to host computer please
Ask, after host computer is approved reception device send sampled data and persistence in master system.
At the same time, host computer also can using active call by the way of to device obtain data, this mode mainly for
The data recorded under triggering storage mode, i.e. host computer recall the abnormal data of power network and are convenient for exception or crash analysis.
Upper computer software the sampled data of calling can also be carried out systematic calculation analysis ((data of device calculate by
Can only be a short time window in requirement of real-time, or a small fragment of sampled data, it calculates analysis
Purpose be for quickly drawing result of calculation, while judge that power network has disturbance；The calculating of substation module is then for for a long time
The sampled data of section, the data window that it is calculated can be with unrestricted choice, therefore the calculating analysis that can be carried out is also more deep.One
Similar metaphor, what device calculated every time is all current newest 1 minute sampled data；And before what substation module calculated is then
All sampled datas stored, it can be 1 day, 2 days or two weeks.)), and result is visualized, simultaneously
Spectrogram, the content of amplitude versus frequency characte even depth analysis of power network measurement signal can also be generated.Compared to the calculating inside device
And analysis, although the real-time that upper computer software calculates analysis is relatively poor,
But it except can effectively display data calculate and analysis result in addition to, can also realize data calculating and point
Analysis, but also can complete complicated, the systematic comparative analysis function under long time scale, come compensation means calculate in real time and
The defects of analysis.
The present invention also provides a kind of implementation method of power network electrical quantity broadband multi-frequency measurement apparatus, including：
Wideband sampling plate gathers analog quantity sampled data, and is transferred to data and calculates analysis plates, data storage plate and data
Transmission board；
Data transfer plate receives the sampling message of external digital, realizes digital data acquisition, and by the sampled data of reception
It is transferred to data and calculates analysis plates and data memory plane；
The sampled data or the sampled data of itself reception that data transfer plate obtains leniently frequency sampling plate are according to outside
The demand of customization is transmitted；
Data calculate analysis plates and data processing are carried out to analog quantity sampled data and digital quantity sampled data, and by after processing
Sampled data be transferred to analyzing and processing substation module；When judging that grid disturbance occurs or disappeared according to result of calculation, meeting
Disturbance is occurred or disappearance information is transferred to data storage plate by bus backplane；
Data storage plate is after the sampled data of wideband sampling plate or data transfer plate is received, according to the situation of setting
Carry out data storage；Roll storage always if Coutinuous store is provided that, trigger-type stores if being provided that, is receiving data
Restart or stop storage after calculating analysis plates disturbance information.
Wherein：Data transfer and data storage should carry out parallel.Reason is that data transfer is initiated by device
, even if device is configured with liquid crystal display in other words due to being configured without liquid crystal display, under current unwatched pattern
It is not easy to go to and checks, therefore the pre-processed results that it is calculated is transferred to substation module and is visualized and accused by device
It is alert.It is also what is carried out parallel that data storage and data analysis, which should be said, but the real-time of data storage is more stronger, because can determine
Phase sends recorded wave file or sampled data, but it is then for past history number that the data of substation module, which calculate analysis,
According to, therefore it can be calculated once for a long time, and result of calculation is shown；Also may be selected not calculate actively, i.e.,
When personnel need to carry out comprehensive analysis to historical data, time range is carried out (from the data at a certain moment to another by personnel
The data at moment, data during data -2017 on March 10,16 when such as selecting 1 day 0 March in 2017), be then
System property calculates analysis.Because the data sample of selection is more, time scale is longer, and the result of calculating is more accurate, but data meter
The real-time of calculation can be poor.Therefore the data of substation calculate and want deep, comprehensive, but not seek real-time.
It should be noted that：
Wideband sampling plate is mainly analog acquisition, transmits it by the core bus inside device after collecting data
Analysis plates, data storage plate and data transmission board are calculated to data, then each plate carries out related work parallel.
Data calculate analysis plates and start to carry out data calculating analysis, and by its result of calculation and the knot of Preprocessing
Fruit is transferred to substation module；
Data storage plate is just stored after sampled data is received according to setting, if being arranged to Coutinuous store,
The data received are all stored；If triggering storage, then start storage when meeting trigger condition, as specific triggering
Condition is then to calculate analysis plates by data to inform, just passes through core bus after it finds that power network disturbs according to result of calculation
Data storage plate is informed, then data storage plate starts data storing work, until grid disturbance disappearance, then informs stopping again
Storage.
And sampled data is then mainly carried out secondary transmission by data transfer plate, it functions as a data source, i.e.,
Original sampling data can be transferred to different equipment according to the demand of external custom.
It is further to note that data transfer plate also has the sampling functions of digital quantity, accurately say it is digital quantity report
The receive capabilities of text.It is i.e. outside that device of the sampling message to the present invention is sent by combining unit, then connect by data transfer plate
Receive, then calculate analysis plates, data storage plate by it to transfer data to data.By digital quantity sampled data in the present invention
Receive capabilities are integrated in data transfer plate, can also be decoupled when subsequently implementing again, will the present invention data transfer plate
It is split into the other manners such as digital quantity sampled data receiver board, frequency dividing transmission board.
In addition to realize wideband measurement function, device involved in the present invention can also be matched somebody with somebody by remote signalling plate, remote control panel
Put to realize the collection of switching value information, breaker and the breaking-closing operating of switch respectively, and then realize transformer station's measurement amount, shape
The collection of state amount and the control operation of switch, and then the institute that can have transformer station measurement and control device concurrently is functional.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although with reference to above-described embodiment pair
The present invention is described in detail, and those of ordinary skill in the art can still enter to the embodiment of the present invention
Row modification or equivalent substitution, these are applying without departing from any modification of spirit and scope of the invention or equivalent substitution
Within pending claims of the invention.
Claims (12)
1. a kind of power network electrical quantity broadband multi-frequency measurement apparatus, it is characterised in that including bus backplane, and be inserted in bus backplane
Wideband sampling plate, data storage plate, data transfer plate, data calculate analysis plates and power panel；The wideband sampling plate is used for
Analog quantity sampled data；The data transfer plate can be used for the frequency dividing of digital quantity sampling, analog quantity and digital quantity sampled data to pass
It is defeated；The data calculate analysis plates and are used for the calculating of data and the analysis of result, and will calculate and externally be transmitted with analysis result；Institute
Data storage plate is stated to be used to store sampled data, calculate analyze data and recorded wave file.
2. power network electrical quantity broadband multi-frequency measurement apparatus as claimed in claim 1, it is characterised in that the wideband sampling plate bag
Include fpga chip, A/D conversion chips and sample frequency setting module；
The sample frequency setting module is used to set the wideband sampling plate highest sample frequency and samples frequency in the highest
The actual sample frequency set in the range of rate；
The fpga chip is used to read analog quantity sampled data；
The A/D conversion chips are used to ensure sampled data precision.
3. power network electrical quantity broadband multi-frequency measurement apparatus as claimed in claim 1, it is characterised in that the data transfer plate bag
The AM access module for digital quantity sampled data is included, receives the IEC61850-9-2 forms or IEC60044-8 lattice of outside transmission
The sampling message of formula, obtain digital quantity sampled data；To leniently frequency sampling plate obtain sampled data or itself receive adopt
Sample data carry out frequency dividing transmission according to the demand of external custom.
4. power network electrical quantity broadband multi-frequency measurement apparatus as claimed in claim 3, it is characterised in that the data storage plate pair
Data in the message of data transfer plate external reception can carry out data conversion when being stored：
The outside message includes：IEC61850-9-2 messages and IEC60044-8 messages, when reception IEC61850-9-2 messages
When, the sampled data of 32 in IEC61850-9-2 messages is converted into 16 sampled datas and stored；Work as reception
During IEC60044-8 messages, IEC60044-8 message datas are directly stored.
5. the power network electrical quantity broadband multi-frequency measurement apparatus as any one of claim 1-4, it is characterised in that work as wideband
Sampling plate and data transmission board carry out analog quantity sampling and digital quantity sampling message reception simultaneously when, the sampling clock inside device
On the basis of wideband sampling plate.
6. power network electrical quantity broadband multi-frequency measurement apparatus as claimed in claim 1, it is characterised in that the data storage plate bag
Include data space, data interaction port and data storage method judge module；
The data storage method judge module is used to use corresponding mode logarithm file according to this according to different storage modes
Mode stored, including：
(1) mode of continuous rolling storage, including all sampled datas carry out segmentation storage according to the time span of setting, often
The data of individual file are all since whole moment second, untill the duration of setting；
(2) mode of continuous rolling storage, including proceed by rolling from the file of oldest stored again after memory space is filled with
Storage；
(3) storage mode is triggered, is included in external environment condition and meets to detect that triggering is continuously deposited during trigger condition during grid disturbance
Storage, stops data storage when external environment condition is unsatisfactory for trigger condition；
The data interaction port includes USB port, DVI-I display interfaces and ethernet interface；The USB port, use
To connect mouse and keyboard；The digital visual interface-i interface is used for connecting display；The ethernet interface, which is used to externally transmit, to be deposited
The sampled data of storage, its transmission means include setting stand-by period, setting file storage size and wait outside calling mode.
7. power network electrical quantity broadband multi-frequency measurement apparatus as claimed in claim 1, it is characterised in that the data transfer plate bag
Include sampled data transport module, preprocessed data transport module and module at synchronous pair；
The sampled data transport module refers to that data transfer plate can be by the analog quantity sampled data obtained and digital quantity hits
According to carrying out data transmission, transmission protocol uses IEC61850-9-2 and IEC60044-8 modes；
The preprocessed data transport module be used for realize by data calculating analysis plates calculated voltage, electric current amplitude,
Phase angle, frequency, active power, reactive power and power factor (PF) electrical quantity are divided by way of GOOSE message and are transferred to power transformation
Stand wall secondary device；
Signal when module is used to receive synchronous couple of IEEE1588 and IRIG-B at described synchronous pair.
8. power network electrical quantity broadband multi-frequency measurement apparatus as claimed in claim 7, it is characterised in that the data transfer plate
Sampled data transport module includes original data transmissions and frequency dividing data transfer；
The original data transmissions are externally to transmit the original sampling data that device obtains, and transmission is set according to sample frequency
Message includes sampled data Application service data unit ASDU quantity；
The frequency dividing data transfer is to enter the original sampling data that device obtains after row interpolation externally to transmit：When crude sampling frequency
When rate is the integral multiple of the sample frequency of external custom, sampled data, the form branch of transmission are externally transmitted by way of snap shot
Hold IEC61850-9-2 forms and IEC60044-8 forms；When original sampling frequency is not the integer of the sample frequency of external custom
Times when, row interpolation is entered to original sampling data according to the sample frequency of customization, according still further to IEC61850-9-2 and IEC60044-8
Form outwards transmit sampled data；
The frequency dividing data transfer supports the parallel transmission of multichannel difference custom frequencies.
9. power network electrical quantity broadband multi-frequency measurement apparatus as claimed in claim 1, it is characterised in that the data calculate analysis
Plate is used to handle sampled data in real time, includes the frequency categorization of the sampled data carried out successively, the digitized filtered of sampled data,
And the classification processing and calculating that frequency domain, time domain and the time-frequency of signal combine；And Calculation results are externally transmitted；
The frequency categorization of the sampled data includes：Low-frequency signal components module, power frequency component component module and harmonic wave and humorous
Ripple high frequency component signal module；
The low-frequency signal components module is used for after disturbing high frequency components therein are filtered out after wave digital lowpass filter, is based on
The signal extraction of curve matching and the signals revivification algorithm based on measurement phasor, time-domain and frequency-domain algorithm is cooperated and mended
Fill, realize that frequency, amplitude, the parameter of attenuation coefficient calculate；
The power frequency component component module is used to then after bandpass filtering, survey using the Dynamic Phasors based on Adaptive time window
Amount method, realize that high accuracy, highdensity electric parameter calculate；
Harmonic wave and m-Acetyl chlorophosphonazo the component module is used for the low-frequency component and high-frequency noise point that signal is first filtered out through bandpass filter
After amount, then through and improvement the electric parameter that Interpolating Window FFT Algorithm analyzes each component；For unresolvable harmonic wave and humorous
Frequency components, then pass through the ZoomFFT Frequence zooming algorithms based on multiple modulation, realize close harmonic wave, the ginseng of m-Acetyl chlorophosphonazo component
Number calculates；
The data and analysis result that the calculating analysis plates are calculated can be by IEC61580MMS, IEEE C37.138 and privates
There are three kinds of modes of agreement to be transmitted respectively to transformer station's station level equipment, wide area measurement equipment and other analysis substations and equipment.
10. power network electrical quantity broadband multi-frequency measurement apparatus as claimed in claim 1, it is characterised in that also include analyzing and processing
Substation module, is used for：
Data are calculated with preprocessed data, the Calculation results data realization visual presentation that analysis plates are transmitted；
By the sampled data of data storage plate, all storage is preserved to master system and for a long time, and reception mode is used and passively connect
Receive and actively call two ways；
Systematic Analysis calculating, and power network electrical quantity spectrogram, the voltage x current width that will be calculated are carried out to the data of reception
It is worth result visualization displaying；
Systematic Analysis and diagnosis are carried out to the sampled data of reception, and provide analyzing and diagnosing result.
11. a kind of implementation method of power network electrical quantity broadband multi-frequency measurement apparatus as any one of claim 1-10,
It is characterized in that：
Wideband sampling plate gathers analog quantity sampled data, and is transferred to data by data storage plate and calculates analysis plates and data biography
Input board；
Data transfer plate receives the sampling message of external digital, realizes digital data acquisition, and by the digital quantity hits of reception
Analysis plates and data memory plane are calculated according to data are transferred to；
The sampled data or the sampled data of itself reception that data transfer plate obtains leniently frequency sampling plate are according to external custom
Demand be transmitted；
Data calculate analysis plates and carry out data processing to analog quantity sampled data and digital quantity sampled data, and by adopting after processing
Sample data are transferred to analyzing and processing substation module；
Data storage plate is deposited after the sampled data of wideband sampling plate or data transfer plate is received according to the type of setting
Store up data.
12. implementation method as claimed in claim 11, it is characterised in that：Sampled data after processing is transferred to analyzing and processing
Substation module, including：When judging that grid disturbance occurs or disappeared according to result of calculation, disturbance can be occurred or be disappeared to believe
Breath is transferred to data storage plate by bus backplane；
The type according to setting come data storage, including：Storage is rolled always if Coutinuous store is provided that, if setting
Be trigger-type storage, then receive data calculate analysis plates disturbance information after restart or stop store.
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| CN108362962A (en) * | 2018-02-05 | 2018-08-03 | 国网辽宁省电力有限公司 | Preprocess method in a kind of data set of more measure and control devices fusion |
| CN109298670A (en) * | 2018-11-13 | 2019-02-01 | 北京四方继保自动化股份有限公司 | Multisource data fusion acquisition device and system |
| CN109714320A (en) * | 2018-12-10 | 2019-05-03 | 南京南瑞继保电气有限公司 | Support the PMU data frame and protocol extension method of the transmission of broadband multi-frequency data |
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