CN108847714A - A kind of high voltage direct current transmission transient data wave recording device and control protective unit - Google Patents
A kind of high voltage direct current transmission transient data wave recording device and control protective unit Download PDFInfo
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- H02J13/0006—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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Abstract
The present invention provides a kind of high voltage direct current transmission transient data wave recording device and control protective units; wherein Temporal Data wave recording device includes the Temporal Data recording module for being integrated in control protective unit, and Temporal Data recording module records the internal operation data and external operation data of control protective unit；Internal operation data and external operation data are stored in the Flash board or SATA hard disc of control protective unit.Temporal Data recording module of the invention is software module; when being loaded into control protective unit; the hardware configuration of original control protective unit will not be changed; it does not need to increase or delete acquisition channel; and it can be used cooperatively with dedicated Temporal Data oscillograph; with configure it is flexible, full-featured, store and transmit mode multiplicity; feature easy to use; it can be with the quick positioning protection device trouble location of ancillary works commissioning staff; the various problems encountered in analysis protective device joint debugging, provide reliable foundation for electrical network analysis.
Description
Technical field
The invention belongs to technical field of ultrahigh voltage direct current, in particular to a kind of high voltage direct current transmission transient data recording
Device and control protective unit.
Background technique
Extra-high voltage direct-current transmission was sent out rapidly in China in recent years with its high voltage, large capacity, remote feature
Exhibition.The control and protection of direct current transportation is an extremely complex system, and compared with the protection of ac transmission secondary control, direct current is defeated
The most significant feature of electricity is that performance is largely dependent upon its Control protection system, i.e., need to change incessantly both ends
Stream valve is quickly adjusted, and the size and Orientation of DC line transmission power is controlled, to meet the service requirement of entire ac and dc systems.
Therefore, direct current transportation control protective unit debugging is a grand engineering, by taking ± 800KV extra-high voltage direct-current engineering as an example, control
Device processed include unloaded pressurization, tap changer control, system monitoring and switching, real power control, valve group throw online move back, it is idle control and
Valve interface etc. amounts to 600 multinomial experiments, protective device is protected comprising protectiveness locking, valve unit protection, polar region, bi-pole area is protected,
DC filter protection, DC line protection etc. amount to 500 multinomial experiments.Engineering group screen out of factory puts into operation to scene, during which needs
By again and again thousands of time experiments, so need a kind of effective means, engineering design, debugging and examination can be allowed
Personnel see clearly the working condition and runnability of entire control and protection device, to ensure that power grid security is reliably run.
A kind of important analysis means of the failure wave-recording as operation states of electric power system and the system failure, are widely used in handing over
In direct current transportation control and protection device.When advance works system integration and test, producer and owner, which compare, values external wave recording device
The data of record.Currently, with persistently perfect, the engineering tune of the continuous improvement of control protective unit hardware performance and software performance
Examination and inspector find embedded recording using more flexible, the data of record are also very accurate, can satisfy most of
The needs of engineering debugging.Therefore, embedded Temporal Data recording has been increasingly becoming the one of high voltage DC engineering debugging problem analysis
Kind mainstream means, can provide relatively reliable foundation, to ensure power grid operation steady in a long-term for system early defect.Institute
With Foreign & Domestic Substations and converter station are generally fitted provided with the dedicated failure wave-recording such as fault wave recording device and digital protecting tester
Device, such as Publication No. " CN103076539A ", the Chinese patent of entitled " a kind of embedded electric power unit faults recorder analysis device "
The unit faults recorder analysis device of proposition includes the acquisition module for receiving the power network signal that mutual inductor issues, makes the work for forming power grid
CPU module, the transmission module of the synchronization module of time synchronization, analysis record power network signal, this patent can be supported simultaneously between standing
The processing of traditional simulated signal and the processing of newest digitized signal.The CPU module of the patent provides stable state simultaneously
Data processing function, processing while stable state and Temporal Data are realized in the case where not increasing additional insert or module.
But Temporal Data oscillograph will record the analog quantity and state information of control and protection device, it usually needs
Increase analog quantity and quantity of state I/O-unit in control protective unit, by the critical data that internal system is run export to oscillograph with
It is acquired and records, the advantages of dedicated Temporal Data oscillograph is rich interface, sample frequency is high, memory space is big, but not
Foot place is that the hardware configuration of original control protective unit need to be changed, and increases and delete acquisition channel group and both sides is needed to carry out
Coordinate, causes to install complicated for operation.
Summary of the invention
The purpose of the present invention is to provide a kind of high voltage direct current transmission transient data wave recording device and control protective units, use
Original hardware knot of control protective unit need to be changed in solving control protective unit setting Temporal Data oscillograph in the prior art
The problem of structure.
To achieve the above object, the present invention provides a kind of high voltage direct current transmission transient data wave recording devices, including are used for
The Temporal Data recording module being integrated in control protective unit, the Temporal Data recording module pass through control protective unit
The internal operation data of analog quantity and quantity of state software module record control protective unit, and the communication for passing through control protective unit
The external operation data of interface record control protective unit；The internal operation data and external operation data are stored in control and protect
In the Flash board or SATA hard disc of protection unit.
Defencive function is normally controlled in order to not influence control protective unit, the Temporal Data recording module is protected in control
The cpu idle time of protection unit carries out the storage of the internal operation data and external operation data of the control protective unit, real
The recording that Temporal Data is carried out in the case where control protective unit implements normal defencive function is showed.
In order to adapt to different data-triggered requirements in data recording, the Temporal Data recording module is carrying out data
Edging trigger mode and level triggering mode are used when recording, meet the different triggering modes of recorder data, triggering mode
Multiplicity.
Occurs dead zone when in order to solve the problems, such as recording, the Temporal Data recording module includes two-stage data buffer storage knot
Structure, level-one are real time data buffer area, and another grade is Temporal Data buffer area；The transverse width of the real time data buffer area is
The sum of analog quantity and quantity of state channel number, longitudinal width are the sum of preposition recording points and postposition recording points, cache the head of district
Degree is the product of transverse width and longitudinal width；The length of the Temporal Data buffer area is the N that real time data caches section length
Times, for storing the data recorded before and after fault moment, realize when the file read-write speed of Flash board or SATA hard disc is low
Recording dead zone will not occur when the speed of real-time recorder data typing.
The control protective unit generally includes a host CPU at least one from CPU, in order to solve part recorder data
The recording function of the problem of loss, the Temporal Data recording module are integrated in host CPU, respectively from CPU by the original record of itself
Wave number passes to host CPU according in such a way that configuration data transmits, and the data received are formatted, gone forward side by side by host CPU
Row storage.When the task where the acquisition of host CPU data is mismatched with exporting from cpu data source for task, using configuration data
Recorder data loss will not occur for the mode of transmitting.
Integrality when in order to guarantee host CPU and be transmitted from the recorder data between CPU, the mistake of the configuration data transmitting
Cheng Wei：In host CPU and each from establishing a data communication ring for realizing data real-time, interactive between each CPU between CPU
Road；The first communication interface modules is created in host CPU, and the second communication interface modules is respectively being created from CPU, it is described respectively from CPU
In the second communication interface modules be packaged configuration data and transmissions that choose the right moment from CPU for corresponding, described first communicates and connects
Mouth mold block be used for receive respectively from CPU send configuration data and complete the conversion of configuration data to recorded wave file.
It is moved to complete recorder data between real-time buffer area and Temporal Data buffer area, the real time data caching
Area and Temporal Data buffer area carry out data-moving by the way of direct memory access.
In order to make Temporal Data recording module can adapt to the different demands of user, the Temporal Data recording module can
Recording points before the triggering of configuration recording, the recording points after triggering, single file maximum recording points according to the needs of users,
And the wave file of comtrade format is generated according to international standard.
It is described the present invention also provides a kind of D.C. high voltage transmission control protective unit, including Temporal Data wave recording device
Temporal Data wave recording device includes the Temporal Data recording module being integrated in control protective unit, the Temporal Data recording mould
Block records the internal operation data of control protective unit by the analog quantity and quantity of state software module of control protective unit, and leads to
Cross the external operation data of the communication interface record control protective unit of control protective unit；The internal operation data and outside
Operation data is stored in the Flash board or SATA hard disc of control protective unit.
Defencive function is normally controlled in order to not influence control protective unit, the Temporal Data recording module is protected in control
The cpu idle time of protection unit carries out the storage of the internal operation data and external operation data of the control protective unit, real
The recording that Temporal Data is carried out in the case where control protective unit implements normal defencive function is showed.
In order to adapt to different data-triggered requirements in data recording, the Temporal Data recording module is carrying out data
Edging trigger mode and level triggering mode are used when recording, meet the different triggering modes of recorder data, triggering mode
Multiplicity.
Occurs dead zone when in order to solve the problems, such as recording, the Temporal Data recording module includes two-stage data buffer storage knot
Structure, level-one are real time data buffer area, and another grade is Temporal Data buffer area；The transverse width of the real time data buffer area is
The sum of analog quantity and quantity of state channel number, longitudinal width are the sum of preposition recording points and postposition recording points, cache the head of district
Degree is the product of transverse width and longitudinal width；The length of the Temporal Data buffer area is the N that real time data caches section length
Times, for storing the data recorded before and after fault moment, realize when the file read-write speed of Flash board or SATA hard disc is low
Recording dead zone will not occur when the speed of real-time recorder data typing.
The control protective unit include host CPU and at least one from CPU, lost to solve part recorder data
The problem of, the recording function of the Temporal Data recording module is integrated in host CPU, respectively from CPU by the original recording number of itself
According to host CPU is passed in such a way that configuration data transmits, host CPU formats the data received, and is deposited
Storage.When the task where the acquisition of host CPU data is mismatched with exporting from cpu data source for task, transmitted using configuration data
Mode will not occur recorder data loss.
Integrality when in order to guarantee host CPU and be transmitted from the recorder data between CPU, the mistake of the configuration data transmitting
Cheng Wei：In host CPU and each from establishing a data communication ring for realizing data real-time, interactive between each CPU between CPU
Road；The first communication interface modules is created in host CPU, and the second communication interface modules is respectively being created from CPU, it is described respectively from CPU
In the second communication interface modules be packaged configuration data and transmissions that choose the right moment from CPU for corresponding, described first communicates and connects
Mouth mold block be used for receive respectively from CPU send configuration data and complete the conversion of configuration data to recorded wave file.
It is moved to complete recorder data between real-time buffer area and Temporal Data buffer area, the real time data caching
Area and Temporal Data buffer area carry out data-moving by the way of direct memory access.
In order to facilitate the recorded wave file of engineer work station's acquisition control protective device, the Temporal Data recording module packet
Two kinds of recorded wave file acquisition modes are included, one is formula is actively called, another kind is to send formula on automatic；It is described actively formula to be called to refer to
A ftp server is created in control protective unit, engineer work station logs in control protection dress in a manner of ftp client
It sets, obtains recorded wave file list information, selection needs the wave file downloaded；It is described it is automatic on send formula to refer in control protective unit
One ftp client of middle creation creates a server in engineer work station, after triggering Temporal Data recording, control
Protective device logs in the server of engineer work station, and recorded wave file is uploaded to the specified catalogue of server and is saved.
In order to make Temporal Data recording module can adapt to the different demands of user, the Temporal Data recording module can
Recording points before the triggering of configuration recording, the recording points after triggering, single file maximum recording points according to the needs of users,
And the wave file of comtrade format is generated according to international standard.
The beneficial effects of the invention are as follows：
The present invention provides a kind of high voltage direct current transmission transient data wave recording devices, including for being integrated in control protection dress
Interior Temporal Data recording module is set, Temporal Data recording module passes through the analog quantity and quantity of state software mould of control protective unit
Block records the internal operation data of control protective unit and records control protective unit by the communication interface of control protective unit
External operation data；Internal operation data and external operation data are stored in the Flash board or SATA of control protective unit
In hard disk.Temporal Data recording module of the invention is software module, when being loaded into control protective unit, will not be changed original
The hardware configuration of control protective unit does not need to increase or deletes acquisition channel, and can cooperate with dedicated Temporal Data oscillograph
Use, have configure it is flexible, full-featured, store and transmit mode multiplicity, feature easy to use can be debugged with ancillary works
Personnel's quick positioning system trouble location, the various problems encountered in analysis system joint debugging, provides reliably for electrical network analysis
Foundation.
The present invention also provides a kind of D.C. high voltage transmission control protective unit, transient state is loaded in the control protective unit
Data recording module will not change original control protective unit when Temporal Data recording module is loaded into control protective unit
Hardware configuration, do not need to increase or delete acquisition channel, and can be used cooperatively with dedicated Temporal Data oscillograph, there is configuration
Flexibly, full-featured, store and transmit mode multiplicity, feature easy to use can quickly be positioned with ancillary works commissioning staff
Protective device trouble location analyzes the various problems encountered in protective device joint debugging, provides reliable foundation for electrical network analysis.
Detailed description of the invention
Fig. 1 is the hardware platform structure chart of control protective unit；
Fig. 2 is the software platform schematic diagram of control protective unit；
Fig. 3 is control protective unit debugging network structure chart；
Fig. 4 is real time data caching and Temporal Data caching schematic diagram；
Fig. 5 is Temporal Data recording work flow diagram；
Fig. 6 is embedded Temporal Data recording Functional Design sample schematic diagram；
Fig. 7 is configuration data transfer mode structural block diagram.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing：
A kind of D.C. high voltage transmission control protective unit, including high voltage direct current transmission transient data wave recording device, transient state number
According to the Temporal Data recording module that wave recording device includes for being integrated in control protective unit, Temporal Data recording module passes through
Operation data inside analog quantity and quantity of state software module the record control protective unit of control protective unit, when necessary may be used
The operation number outside control protective unit is received and recorded by various communication modes and communication protocol by communication interface
According to acquisition channel can arbitrarily be obtained with flexible configuration, transient-wave file, and the Temporal Data recording module of the present embodiment can
To be used cooperatively with dedicated Temporal Data oscillograph, relatively reliable foundation is provided for electrical network analysis jointly.
1, platform architecture designs
1.1, hardware and Design of Software Platform
The hardware platform of D.C. high voltage transmission control protective unit is generally made of industrial personal computer or embedded device.Fig. 1 is
A embedded Control protective device, it is defeated by cabinet and processor, an analog input based on VME core bus
Out, several boards of On-off signal output, trigger pulse, field bus communication, ethernet communication etc. ten are constituted.The spy of the device
Point is that cabinet inner treater and all I O board cards can be according to requirement of engineering flexible configurations, and each processor board can be controlled separately
Different I O board card, to realize specific control defencive function.It can directly be realized by VME core bus between processor board
Multi -CPU parallel processing function is realized in data interaction.Temporal Data recording module is embedded in control protective unit, is able to record
The internal operation data of control protective unit；It is able to record through ethernet communication expansion board clamping ENT, control bus (CONTROL
BUS), the external operation data that fieldbus (PROFIBUS), analog quantity and quantity of state I/O expansion board clamping DP are passed over；Also
It is able to record the CPU operation data of other boards in the device passed over by case back plate bus.
Temporal Data recording module of the invention can configure the record before recording triggering according to the needs of users before recording
Recording points, single file maximum recording points after wave point number, triggering, and comtrade format is generated according to international standard
Wave file.
Temporal Data recording module usually carries out recorder data storage in the free time of CPU, to ensure not in recording
Influence whether the control defencive function of control protective unit.But it when the original cpu load of control protective unit is higher, leaves for
The time of wave file storage is just few, so the efficiency for needing to consider to improve wave file storage.Due to SATA hard disc have compared with
Big memory space and faster read or write speed, can be used as the default configuration of engineer application.One piece of SATA is configured in Fig. 1 device
Hard disk can be accessed and be controlled by the main processor board card for being inserted in first slot position, for storing Temporal Data recorded wave file,
And it supports to pass to other equipment by various telecommunication medias, communication protocol.Certainly, in not high special of some pairs of performance requirements
Occasion, it is possible to use the on piece FLASH stored waveform file of processor board.
The software platform of D.C. high voltage transmission control protective unit generally uses multiple task operating system, and all tasks can be with
Configuration preference level, the function that Temporal Data recording compares consumption system resource, which can be placed in low priority task, to be completed.Such as Fig. 2
Shown, the software section of device is the graphical application development platform based on vxworks real time operating system, includes
Several hundred a functional blocks such as arithmetic, logic, control, communication, fault diagnosis, inside write by C code, outer enclosure is got up confession
Engineer application programming personnel calls, and cooperates the various control defencive functions that can be achieved in DC engineering with hardware.With the current country
The SD card program of outer similar control protective unit stores compared with AccessPort, the platform support network real-time monitoring, editor, under
Engineer application program is carried and debugged, the working efficiency at scene can be greatly improved.The software platform provides 5 periodic duties and 8
A interrupt task, user can rationally match according to the capacity of application program and the task of execution time requirement option program operation
Set the period of task run.Wherein duty cycle most supports 0.1ms fastly, and the sampling of 10KHz can be achieved in Temporal Data recording maximum
Frequency.
1.2, network structure designs
In high voltage direct current transmission project, if being generally according to grade classification by the repertoire of converter station and transmission line of electricity
Dried layer time, control device are divided into pole control, valve control, the control of direct current station, Exchange Station control etc., and protective device is divided into pole protection, valve protection, friendship
Flow filter protection etc..In converter station, control protective unit is distributed in master control building according to function, low side valve hall controls building, height
The end valve Room controls the different regions such as building, AC filter protection cell, therefore by building debugging network, engineer can be in master
Control the maintenance realized in building to all control protective units of whole station.Fig. 3 is converter station control and protection device debugging network structure
Figure.Designated lane between control protective unit and Temporal Data recording module generally uses hardwire or optical fiber by each device
Initial data exports to Temporal Data recording module and acquires and generate wave file, is obtained indirectly by engineer work station.Engineering
Teacher's work station accesses the processor boards of all devices by accessing the debugging local area network of control and protection device, edit, under
It carries and supervision application program.Therefore, after realizing the embedded Temporal Data recording function of control and protection device, engineer's work
The recorded wave file of all devices can be directly acquired via debugging network by standing.
2, embedded Temporal Data recording Functional Design
2.1, basic function designs
COMTRADE is the general lattice of ieee standard electrical power system transient data exchange, and each COMTRADE record has one group
Most 4 relative files, are heading file, configuration file, data file, message file respectively.Wherein title and letter
File not necessarily file is ceased, therefore need to will only meet the Temporal Data that system after trigger condition records in design and generate configuration
File and message file.Configuration file is a kind of ASCII text file, for correctly illustrating the format of data file,
The information such as sampling rate, number of channels, frequency, channel information that metadata file is included, mark data file be with
ASII code or the storage of binary format.Data file includes the value of each all input channels of sampling in record, including suitable
Serial number and the time tag sampled every time, sampled value is in addition to the data of record analog input, and also record indicates switching signal
State information.
Power industry standard defines Temporal Data and acquires segment record when can be divided into five, i.e. data record can be by equal intervals
Sampling, or the interior virtual value sampling recorded at regular intervals.Configurable multitask is supported to answer in view of current software platform
With programming mode, user be can choose using interrupt task or periodic duty mode, and wherein periodic duty highest can be configured to
0.1ms, it can be achieved that 10KHz sample frequency.Sampling number refers to the group number of the maximum storage recorder data in a data file,
One group of data includes once to sample the value of all analog quantitys and quantity of state.For in configuration file the first point data time and touching
It sends out the point data time, introduces two concepts here, i.e., preposition recording points and postposition recording points.Preposition recording points refer to
Wave point number of pre-recording before the triggering logic of Temporal Data meets the condition moment, postposition recording points refer to when Temporal Data
Triggering logic meets the condition moment, and there is still a need for the points of record later.Engineering commissioning staff can be by comparing the record of triggering moment front and back
The difference of wave number evidence, the performance of assessment protective device operation, analyzes protective device failure Producing reason.User is in configuration recording
When channel, the two points only need to be configured, the first point data time and trigger point data time can be by programming automatic generations.
Temporal Data triggering is generally divided into edging trigger mode and level triggering mode.Edging trigger mode refers to when triggering
When logic meets, the actual samples points of system are equal to preposition recording points and count plus postposition recording.Level triggering mode is
Refer to when trigger condition meets, the actual samples points of system are recorded comprising preposition recording points, triggering level duration
Points and postposition recording points.In addition, after trigger condition meets, when recording is not yet completed, and there is new triggering item
Part arrives, and general there are two types of processing modes, and one is the recordings for continuing to complete first trigger condition, ignore new triggering item
Part, another is the information for retaining first trigger condition and having recorded, since new trigger condition, restarting postposition record
The record of wave point number, until to the last the postposition recording points recording of a trigger condition is completed, if during recording, always
There is new trigger condition, after recorded wave file reaches dominant record data, recording is forced to be completed.Current triggering logic uses second
Kind processing mode.
2.2, data buffer storage designs
After the completion of Temporal Data recording module meets trigger condition and recording, recorder data need to be stored.Control
The efficiency of protective device storage equipment is to restrict a key factor of Temporal Data recording performance, as SATA hard disc or FLASH
File read-write speed be lower than real time data typing speed when, it is possible to there is the case where recording dead zone.In order to solve this
Problem devises two-stage data buffer storage structure, as shown in figure 4, open up the independent data buffer area of two panels simultaneously in RAM, one
Piece is defined as real time data buffer area (level cache), and transverse width is the sum of analog quantity and quantity of state channel number, is indulged
It is the sum of preposition recording points and postposition recording points to width, caching section length is the product of laterally and longitudinally width, is used
In real-time storage and update current data；Another is defined as Temporal Data buffer area (L2 cache), and length is to count in real time
According to N times of buffer area, for storing the historical data recorded before and after fault moment.The design of two-stage data buffer storage is a large amount of by removal
Invalid historical data only saves the valid data of triggering moment, solves storage equipment read or write speed and real time data typing
The unmatched problem of speed.
Temporal Data recording workflow is as shown in Figure 5.Under initialization pattern, creation history data store area, configuration
Information storage area and recorder data memory pool, while the configuration informations such as station name, device name being written according to the configuration of user
In configuration information memory block.Under circulation pattern, real-time update historical data, while judging whether to meet trigger condition, if full
It is sufficient then by the configuration informations such as fault point temporal information be written configuration information memory block in, guarantee configuration information memory block in match confidence
The integrality of breath directly to carry out Comtrade file format conversion, while copying real time data to Temporal Data buffering
Qu Zhong.When recording complete when, start Comtrade format convert task, by the data conversion in Temporal Data buffer area at
Comtrade wave file, and be saved in SATA hard disc.
By the above recording workflow it is found that needing to complete between level cache and L2 cache after system trigger recording
The operation of data-moving, in the case that there are many recording points, recording is rapid, system needs to consume longer time and has come
At data-moving.By taking the application of a super high-speed route protection as an example, need to complete 50000 point samplings (maximum 64 in 20us
Road analog quantity, 64 line state amounts), when trigger condition meets, need to complete moving for 13MB data in 1s, and data are removed
Move the normal sample that cannot influence system.Here DMA (Driect Memory Access) direct memory access mode is used,
Be rapidly completed while being not take up cpu load source address to destination address data copy.
2.3, recording function block design
Embedded Temporal Data recording functional module based on the exploitation of the above design principle is as shown in fig. 6, wherein TCH is void
Quasi- oscillograph initialization module, calls a TCH module i.e. one data wave recording device of analog, single TCH module that can hang
Most 64 ARC analogue collection modules and 64 quantity of state acquisition modules are carried, i.e., one virtual oscillograph at most can recorde
64 tunnel analog quantitys and 64 line state amount data.Virtual recording function can be multiplexed, and it is temporary to configure multiple groups in a processor
State data recording module, every group of data recording module can be individually created one group of recorded wave file after meeting trigger condition.Therefore, for
The different data of producer and owner's concern, can be by multiplex data flexible combination, and different virtual oscillographs is respectively configured
It is recorded.
3, recorder data storage mode designs
The present embodiment is provided with special storage mode to recorder data, and control protective unit includes a primary processor
(CPU) board is responsible in the control protective unit of Fig. 1 by primary processor board at least one from processor (CPU) board
The data of the realization of whole device Temporal Data recording function, i.e. primary processor board not only minute book board internal operation, and
And it needs that the data from other from processor board are received and recorded by VME backboard parallel bus.Principal and subordinate processor board
Immediate data transfer mode can be used in data interaction, and this mode application is easy, and can satisfy most of engineering debugging substantially needs
It asks.But the defect of which is, primary processor board and be system independent from processor board, and asynchronous system is direct
Carrying out data transmitting may cause part recording points loss or repeats.In addition, where the acquisition of primary processor board data
Task with from processor board data source export task mismatch, such as the data of primary processor board acquisition operate in
The duty cycle of 1ms generates and is sent from the data of processor board the interrupt cycle for operating in 0.625ms, also results in portion
Wave point number is recorded separately to lose.
The method for solving problem above changes immediate data transmitting, by the way of configuration data transmitting.It realizes
Principle is：
It is two parts by Temporal Data recording function cutting, first part completes the storage (storage of recording initial data
In RAM), second part completes recorded wave file format conversion (being stored in SATA hard disc)；Primary processor board retains original
Two parts are combined into one by scheme.The original data record function of itself is completed from processor board, but and without second
The file format conversion divided, but configuration data packing is passed into primary processor board, second is completed by primary processor board
Partial operation.
The transmitting of configuration data does not require too fastly, but to ensure the integrality of information transmission.Configuration data transfer mode is real
Existing process is as shown in fig. 7, by taking a host CPU and two are from CPU as an example：
It needs to establish a data communications loop between master-slave cpu first, realizes the data real-time, interactive of master-slave cpu.
The first communication interface modules TFRCP is created in host CPU application program, is respectively created from CPU application program
Second communication interface modules TFRSP, for managing the transmitting of master-slave cpu transient state recorder data.TFRSP module for it is corresponding from
CPU is packaged configuration data and the transmission that chooses the right moment, and TFRCP receives configuration data for host CPU and completes configuration data to recording
The conversion of file.
4, recorded wave file acquisition modes design
Since engineer work station need to check and analyze to the wave file of each control protective unit, in order to meet
Engineer work station checks the requirement of wave file, and the embedded Temporal Data recording module of the present embodiment provides two kinds of recordings
File acquisition mode is active calling mode respectively and send mode on automatic.The method that active calling mode is realized is to control
A ftp server is created in protective device, engineer work station can log in each control protection dress in a manner of ftp client
It sets, obtains recorded wave file list information, selection needs the wave file downloaded, and is stored in specified work station catalogue.It is main
The advantages of dynamic calling mode is to debug using simplicity especially suitable for small-scale control protective unit.Mode is sent to realize on automatic
Method be in each control protective unit creation one ftp client, establish a server on a workstation, work as system
After triggering Temporal Data recording, the server of control protective unit active logon workstations uploads the recorded wave file newly triggered
The catalogue specified to server saves, and file, which uploads, terminates backed off after random server.All file transfer operations are low preferential
It is carried out in the task of grade, will not influence the control and protection function of control protective unit.Mode is actively called to be suitable for extensive
Device joint debugging, for set control protective units up to a hundred, commissioning staff is not necessarily to successively obtain each device in each experiment node
Recorded wave file.
Specific embodiment is presented above, but the present invention is not limited to embodiment described above.The present invention
Basic ideas be above-mentioned basic scheme, for those of ordinary skill in the art, introduction according to the present invention is designed each
The model of kind deformation, formula, parameter do not need to spend creative work.The case where not departing from the principle and spirit of the invention
Under to embodiment carry out variation, modification, replacement and deformation still fall in protection scope of the present invention.
Claims (10)
1. a kind of high voltage direct current transmission transient data wave recording device, which is characterized in that including for being integrated in control protective unit
Interior Temporal Data recording module, the Temporal Data recording module pass through the analog quantity and quantity of state software of control protective unit
Module records the internal operation data of control protective unit, and passes through the communication interface of control protective unit record control protection dress
The external operation data set；The internal operation data and external operation data are stored in the Flash board of control protective unit
Or in SATA hard disc.
2. high voltage direct current transmission transient data wave recording device according to claim 1, which is characterized in that the Temporal Data
Recording module carries out the internal operation data and external fortune of the control protective unit in the cpu idle time of control protective unit
The storage of row data.
3. high voltage direct current transmission transient data wave recording device according to claim 2, which is characterized in that the Temporal Data
Recording module uses edging trigger mode and level triggering mode when carrying out data recording.
4. high voltage direct current transmission transient data wave recording device according to claim 2, which is characterized in that the Temporal Data
Recording module includes two-stage data buffer storage structure, and level-one is real time data buffer area, and another grade is Temporal Data buffer area；It is described
The transverse width of real time data buffer area be the sum of analog quantity and quantity of state channel number, longitudinal width be preposition recording points with
The sum of postposition recording points, caching section length are the product of transverse width and longitudinal width；The length of the Temporal Data buffer area
Degree is N times that real time data caches section length, for storing the data recorded before and after fault moment.
5. high voltage direct current transmission transient data wave recording device according to claim 4, which is characterized in that the control protection
Device include host CPU and at least one from CPU, the recording function of the Temporal Data recording module is integrated in host CPU,
Respectively host CPU is passed in such a way that configuration data transmits from CPU by the original recorder data of itself, host CPU will receive
Data format, and are stored.
6. high voltage direct current transmission transient data wave recording device according to claim 5, which is characterized in that the configuration data
The process of transmitting is：In host CPU and each from establishing a number for realizing data real-time, interactive between each CPU between CPU
According to communications loop；The first communication interface modules is created in host CPU, and the second communication interface modules is respectively being created from CPU, it is described
Respectively configuration data and the transmission that chooses the right moment are packaged from CPU from the second communication interface modules in CPU for corresponding, described first
Communication interface modules be used for receive respectively from CPU send configuration data and complete the conversion of configuration data to recorded wave file.
7. high voltage direct current transmission transient data wave recording device according to claim 4, which is characterized in that the real time data
Buffer area and Temporal Data buffer area carry out data-moving by the way of direct memory access.
8. high voltage direct current transmission transient data wave recording device according to claim 1, which is characterized in that the Temporal Data
Recording module can configure the recording points before recording triggering, the recording points after triggering, single file according to the needs of users
Maximum recording points, and according to the wave file of international standard generation comtrade format.
9. a kind of D.C. high voltage transmission control protective unit, which is characterized in that including Temporal Data wave recording device, the transient state number
It include the Temporal Data recording module being integrated in control protective unit according to wave recording device, the Temporal Data recording module passes through
The internal operation data of analog quantity and quantity of state software module the record control protective unit of control protective unit, and pass through control
The external operation data of the communication interface record control protective unit of protective device；The internal operation data and external operation number
According in the Flash board or SATA hard disc that are stored in control protective unit.
10. D.C. high voltage transmission control protective unit according to claim 9, which is characterized in that the Temporal Data record
Wave module carries out the internal operation data and external operation of the control protective unit in the cpu idle time of control protective unit
The storage of data.
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