CN106254124A - A kind of Intelligent substation merging unit collocation method improved based on short address - Google Patents
A kind of Intelligent substation merging unit collocation method improved based on short address Download PDFInfo
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- CN106254124A CN106254124A CN201610679230.4A CN201610679230A CN106254124A CN 106254124 A CN106254124 A CN 106254124A CN 201610679230 A CN201610679230 A CN 201610679230A CN 106254124 A CN106254124 A CN 106254124A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0876—Aspects of the degree of configuration automation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/672—Short addresses
Abstract
The present invention devises a kind of Intelligent substation merging unit collocation method improved based on short address, belongs to power system transformer substation automatic field.Step is as follows: SCD configuration tool is according to the SCD file of combining unit ICD file generated intelligent substation；Short address in described ICD file comprises the configuration information of ICD；Configuration information is corresponding with the empty terminal number of short address；Utilize combining unit configuration tool that the short address in SCD file is resolved, derive the configuration file of combining unit information；Combining unit instrument is utilized to be downloaded to by configuration information in combining unit to complete configuration process.This kind of method is utilized to solve combining unit in intelligent substation too much, the problem that debugging work load is big.
Description
Technical field
The present invention relates to a kind of Intelligent substation merging unit collocation method improved based on short address, belong to power system
Substation Automation System field.
Background technology
Combining unit is the key character of intelligent substation, plays key player in the framework of intelligent substation, complete
The electric parameters that a paired transformer transmits merges and synchronization process, and will process after digital signal according to specific
Form is transmitted to the device that bay device uses.Along with the combining unit extensive application in intelligent substation, combining unit
The supply of material is more and more, and the workload of field adjustable is increasing, but the Limited information that IEC61850 short address comprises, pass through
ICD (IED Capability Description describes the model file of intelligent assembly ability) and SCD (Substation
Configuration Description, CONFIG.SYS of entirely standing) configuration information that is converted into is few, causes combining unit
Configuration item is too much, and manual operation is too much, often results in construction period long, and progress is slow, delays project progress.
Summary of the invention
It is an object of the present invention to provide a kind of Intelligent substation merging unit collocation method improved based on short address, to solve
The problem that intelligent substation debugging work load is big.
For achieving the above object, the technical solution adopted in the present invention is: a kind of intelligent power transformation improved based on short address
Combining unit of standing collocation method, step is as follows:
1) SCD configuration tool is according to the SCD file of combining unit ICD file generated intelligent substation；In described ICD file
Short address comprise the configuration information of combining unit, configuration information is corresponding with the empty terminal number of short address；Described configuration information
Including: communication numeric type and numbering, cpu type and numbering, data table data type and numbering, derived data type and volume
Number, association/chain rupture data indicate, combining unit harvester and ID, combining unit harvester channel type and passage, combining unit
Harvester data source types switches with no-load voltage ratio, combining unit association channel side by side with group, combining unit analog digital conversion no-load voltage ratio type
At least one in attribute-bit；
2) utilize combining unit configuration tool that the short address in SCD file is resolved, derive combining unit information
Configuration file；
3) combining unit instrument is utilized to be downloaded to by configuration information in combining unit to complete configuration process.
Short address form in described ICD file is as follows:
SAddr=" Axx:Bxx.Cxx.Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx "；
Being applicable to the situation that Data Source is single, wherein, Axx field is communication numeric type+numeral numbering；Bxx field
Number for CPU+CPU；Cxx field is data table data type+numeral numbering；Dxx field is that derived data type+numeral is compiled
Number；Exxyyzzzz field is association/chain rupture Data Identification；Fxx field is combining unit harvester+ID；Gxx field is for merging
Unit harvester channel type+passage；Hxx field is combining unit harvester data source types+group；Ixx field is single for merging
Unit's analog digital conversion no-load voltage ratio type+no-load voltage ratio；Jxx field is combining unit association channel switch attribute arranged side by side mark.
Short address form in described ICD file is as follows:
SAddr=" Axx:Bxx.Cxx.Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx,
Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx"；
Being applicable to the situation that Data Source is the most single, wherein, Axx field is communication numeric type+numeral numbering；Bxx word
Section is numbered for CPU+CPU；Cxx field is data table data type+numeral numbering；Dxx field is that derived data type+numeral is compiled
Number；Exxyyzzzz field is association/chain rupture Data Identification；Fxx field is combining unit harvester+ID；Gxx field is for merging
Unit harvester channel type+passage；Hxx field is combining unit harvester data source types+group；Ixx field is single for merging
Unit's analog digital conversion no-load voltage ratio type+no-load voltage ratio；Jxx field is combining unit association channel switch attribute arranged side by side mark.
Full-automatic generation configuration is accomplished by processing from data source header, the instrument institute of acquisition device from short address after all
Have on the integrity of manufacturer's information and solve, therefore want to improve the work efficiency of the commissioning staff of intelligent substation, automatically generate
The a complete set of configuration of combining unit, it is necessary to IEC61850 short address improves expansion according to certain rule.
A kind of Intelligent substation merging unit collocation method improved based on short address that the present invention proposes, according to a set pattern
Then short address is expanded, the information required for combining unit is covered all around, join for automatically generating a combining unit complete set
Set up vertical data source, solve the problem that intelligent substation debugging work load that combining unit configuration item too much causes is big, improve
Field adjustable efficiency.
Accompanying drawing explanation
Fig. 1 is that engineering debugging efficiency schematic diagram is improved in intelligent substation short address；
Fig. 2 is intelligent substation short address void circuit system application schematic diagram；
Fig. 3 is to send application schematic diagram on the void circuit system SV of intelligent substation short address；
Fig. 4 is to send application schematic diagram on the void circuit system GOOSE of intelligent substation short address.
Detailed description of the invention
The technical scheme is that the present invention is directed to combining unit in intelligent substation gets more and more, field adjustable amount
Increasing, cause construction period long, progress is slow, the problem delaying project progress, it is proposed that to IEC6185 short address according to
Set pattern then carries out the method expanded, and processes from data source header, obtains the full detail needed for combining unit from short address,
Automatically generate a complete set of configuration of combining unit, and utilize combining unit configuration tool, a complete set is configured and fills under a key, thus reduce
The manual operation of commissioning staff, improves the work efficiency of commissioning staff.
The invention will be further described below in conjunction with the accompanying drawings:
Intelligent substation utilizes short address to expand the process of raising engineering debugging efficiency as it is shown in figure 1, producer provides merging
Unit ICD file, wherein comprises the short address of combining unit configuration information, utilizes SCD configuration tool according to ICD file generated intelligence
Energy transformer station SCD file, resolves the short address of SCD file, the configuration information of system of entirely being stood, wherein comprises merging
Unit complete set configuration information, utilizes combining unit configuration tool a complete set to be configured under a key and fills, carry out engineering construction.
Present invention foundation IEC61850 model and " DL/T 282-2012 combining unit technical conditions " thereof are according to following rule
Carry out setting up short address and expand rule.Expanding the overall consideration of rule SV and GOOSE short address compatibility to expand, SV short address is expanded
Consider that frame format and the passage relation of the access of collection, the extension of GOOSE short address consider that (industry proposes void terminal and void in empty loop
Intending the concept of secondary circuit, being called for short virtual secondary circuit is empty loop) monitor.Comprehensive conditions above, short address reference format and
Improvement form is as follows:
Short address reference format: sAddr=" empty terminal number "
It is as follows that form is improved in short address:
SAddr=" Axx:Bxx.Cxx.Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx,
Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx"
Short address sAddr is the model field defined in IEC61850 standard, and sAddr attribute is used for distributing short address to DO
Attribute, is legal for depositing the private information of IED manufacturer, has no effect on interoperability.
Wherein, Axx explanation of field: communications data types+numeral numbering.The numbered corresponding communications data types of numeral is by connecing
Receive and send the sequence number of data layout respectively, from the beginning of 0, if the 10th reception single-point remote signalling amount is ISP10.
Communications data types defines:
ISP inputs single-point；
IDP inputs two point；
IIT input shaper；
IFT inputs floating-point；
OSP exports single-point；
ODP exports two point；
OIT output Shaping；
OFT exports floating-point；
OTM exports TSSM markers.
Bxx explanation of field: CPU+CPU numbers.Such as CPU1:B01, CPU2:B02 ..., numbered 2 of numeral, less than 2 use
0 polishing.
Cxx explanation of field: data table data type+numeral numbering, the data of IPLD platform are summary table, therefore a prefix
Unified use CHL, No. ID of digital numbered corresponding data data, if ID is the data of 47: CHL47.
Dxx explanation of field: derived data type+numeral numbering.Derived data type, represents input or output and data
Type, data number is individually determined numbering according to different purposes, as the 25th soft is opened into for SDin25, to not having derived data
Numeral numbering be set as default value "-1 ".
Because considering to send in the two point information such as disconnecting link position, therefore two Dxx occur, the 1st Dxx represents conjunction position, the 2nd Dxx
Represent a point position, such as: sAddr=" Axx:Bxx.Cxx.
HDin801.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx,
HDin802.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx"
HDin801 firmly open into；
HDin801, HDin802 two point firmly open into；
SDin inputs GOOSE single-point；
DDin inputs GOOSE two point；
IDin input shaper；
FDin inputs floating-point；
TDin input TSSM markers (monitoring of clock synchronous regime)；
CDin external clock；
SDout exports single-point；
DDout exports two point；
IDout output Shaping；
FDout exports floating-point；
TDout output time markers；
The self-produced signal of EDout；
CDout sends clock.
Exxyyzzzz explanation of field: association (or chain rupture) Data Identification.Instrument is led by dependency rule when deriving ICD file
Going out, secondary field can not be empty, necessarily fills out association if not chain rupture, just fills out " RLT00000000 " without incidence relation.
Associate field defines: " RLTxxyyzzzz "；Wherein " RLT " is associate field keyword, and xx is CPU number, and yy is
Data table id, zzzz is associated data Record ID.It is then associated data when field is identical, if having many in same short address
Individual data, associated data mark is identical.Process layer devices CPU fills out 01 or 02, because all data are in a table, therefore counts
00 is filled out according to table id；Associated data Record ID fills in the ID of output data, such as one output data M (ID:0x9) and an input
Data N (ID:0x1234) associate, then the associate field of both is RLT01000009.
Chain rupture field definition: " LNKxxyyzzzz "；Wherein, " LNK " is chain rupture field keys, and xx does not uses, and is defaulted as
00, yy is chain rupture accessing points type, 01-G (process layer GOOSE), and 02-M (process layer SV), zzzz are that this chain rupture warning signal exists
According to the sequence number of APPID layout from small to large under this accessing points, from the beginning of 0.
Because considering the source of the information such as two point information such as disconnecting link position, therefore two Exxyyzzzz occur, the 1st
Exxyyzzzz represents the association status closing position, and the 2nd Dxx represents the association status of point position.Such as: sAddr=" Axx:
Bxx.Cxx.HDin801.RLT00000000.Fxx.Gxx.Hxx.Ixx.Jxx,
HDin802.RLT00000000.Fxx.Gxx.Hxx.Ixx.Jxx"
Fxx explanation of field: combining unit harvester+ID.Harvester type may be generally defined as SMP (Sample), with
Communications protocol in " DL/T 282-2012 combining unit technical conditions " is closed as foundation, association harvester ID, it is allowed to maximum number
16, scope 0～15 ,-1 indicates and maybe cannot determine harvester ID without harvester ID.
Gxx explanation of field: combining unit harvester channel type+passage.Harvester channel type general definable SCH
(SampleChannel), close as foundation with the communications protocol in " DL/T 282-2012 combining unit technical conditions ", association connection
Passage ID, 0～63 ,-1 indicates when maybe cannot determine passage ID without passage ID.
Hxx explanation of field: combining unit harvester data source types+group.Harvester data source types general definable CGP
(ChannelGroup): association channel group, 0～63, if the ABC phase of CT is one group ,-1 indicates without passage group.
1: the 1 group of protective current；
2: the 2 groups of protective currents；
3: the 3 groups of protective currents；
4: measure electric current；
5: bus MU phase voltage 9-2 exports；
6: bus MU residual voltage 9-2 output；
7: bus MU phase voltage exports the output of graceful code；
8: the graceful code of bus MU residual voltage exports；
9: zero-sequence current；
10: gap current；
11: synchronous voltage (interval sampling)；
12: the 1st group of protective current of reversed polarity；
13: the 2nd group of protective current of reversed polarity；
14: the 3rd group of protective current of reversed polarity；
15: reversed polarity measures electric current；
16: interval MU cascaded-output phase voltage passage；
17: interval MU cascaded-output residual voltage passage；
18:9-2 cascade input phase voltage passage；
19:9-2 cascade input residual voltage passage；
20: graceful code cascade phase voltage input channel；
21: graceful code cascade residual voltage input channel；
22: synchronous voltage (cascade bus MU)；
23: interval MU output phase voltage (interval sampling)；
24: interval MU output residual voltage 1 (interval sampling).
Ixx explanation of field: combining unit analog digital conversion no-load voltage ratio type+no-load voltage ratio.Combining unit conversion no-load voltage ratio type typically may be used
Definition ADK, analog digital conversion no-load voltage ratio is all enumeration type, can carry out sequence number selection according to the no-load voltage ratio of the Data Source of following table.
0: specified time delay (nothing)；
1: protective current (In/463)；
2: measure electric current (In/11585)；
3: phase voltage (57.74V/11585)；
4: residual voltage 1 (150V/11585)；
5: residual voltage 2 (100V/11585)；Standby no-load voltage ratio
6: interval MU output cascade phase voltage passage；
7: interval MU output cascade residual voltage passage；
8:9-2 cascade input phase voltage passage；
9:9-2 cascade input residual voltage passage；
10: graceful code cascade input phase voltage passage；
11: graceful code cascade input residual voltage passage.
Jxx explanation of field: combining unit association channel switch attribute arranged side by side identifies.Combining unit association channel attribute is general
Definable RMS (RelationMergeSwitch), association channel switch attribute arranged side by side 0～33.
0: nothing；
Mother's 1:1 A phase protects voltage 1 (after switching, A phase protects voltage 1)；
Mother's 2:1 A phase protects voltage 2 (after switching, A phase protects voltage 2)；
Mother's 3:1 B phase protects voltage 1 (after switching, B phase protects voltage 1)；
Mother's 4:1 B phase protects voltage 2 (after switching, B phase protects voltage 2)；
Mother's 5:1 C phase protects voltage 1 (after switching, C phase protects voltage 1)；
Mother's 6:1 C phase protects voltage 2 (after switching, C phase protects voltage 2)；
Mother's 7:1 residual voltage 1 (residual voltage 1 after switching)；
Mother's 8:1 residual voltage 2 (residual voltage 2 after switching)；
Mother's 9:1 A phase measures voltage (after switching, A phase measures voltage)；
Mother's 10:1 B phase measures voltage (after switching, B phase measures voltage)；
Mother's 11:1 C phase measures voltage (after switching, C phase measures voltage)；
Mother's 12:2 A phase protects voltage 1；
Mother's 13:2 A phase protects voltage 2；
Mother's 14:2 B phase protects voltage 1；
Mother's 15:2 B phase protects voltage 2；
Mother's 16:2 C phase protects voltage 1；
Mother's 17:2 C phase protects voltage 2；
Mother's 18:2 residual voltage 1；
Mother's 19:2 residual voltage 2；
Mother's 20:2 A phase measures voltage；
Mother's 21:2 B phase measures voltage；
Mother's 22:2 C phase measures voltage；
Mother's 23:3 A phase protects voltage 1
Mother's 24:3 A phase protects voltage 2；
Mother's 25:3 B phase protects voltage 1；
Mother's 26:3 B phase protects voltage 2；
Mother's 27:3 C phase protects voltage 1；
Mother's 28:3 C phase protects voltage 2；
Mother's 29:3 residual voltage 1；
Mother's 30:3 residual voltage 2；
Mother's 31:3 A phase measures voltage；
Mother's 32:3 B phase measures voltage；
Mother's 33:3 C phase measures voltage；
Mother's 34:1 synchronous voltage 1；
Mother's 35:1 synchronous voltage 2；
Mother's 36:2 synchronous voltage 1；
Mother's 37:2 synchronous voltage 2.
In rule is improved in short address, first " Fxx.Gxx.Hxx.Ixx.Jxx " and second
The voltage of " Fxx.Gxx.Hxx.Ixx.Jxx " basis " DL/T 282-2012 combining unit technical conditions " and combining unit thereof is also
Row handoff functionality expands, field meanings all as.
In rule is improved in short address, first " Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx " and second
The synthesis that " Dxx.Exxyyzzzz " field is multiple information in " Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx " is pre-
Stay, the two point information source etc. of such as disconnecting link position.If the source of device information is single, then directly by second
" Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx " omits.
Covered all useful informations of combining unit SV and GOOSE by above 10 fields, close for intelligent substation
And the configuration of unit generates and provides complete device information, complete can embodiment offer it is critical to of intelligent substation simultaneously
Element, framework and theory for intelligent substation void circuit system provide openr imagination space.
As other embodiments, the configuration information comprised in short address can be the one or many of above-mentioned 10 kinds of information
Kind.
It is illustrated in figure 2 intelligent substation short address void circuit system application schematic diagram.Process layer judges, produces empty loop
Abnormal signal, utilizes GOOSE signal to be sent to wall；Wall judges, produces empty loop abnormal signal repeating process layer void
Loop abnormal signal, utilizes remote signalling or MMS message up sending to station level；Abnormal signal is carried out resolving by station level to be shown.
Application is sent as it is shown on figure 3, protective current is passed through short by process layer on the void circuit system SV of intelligent substation short address
Address improved procedure sets up mapping relations by intelligent substation station SCD and measure and control device, measure and control device receive process layer SV with
On send remote measurement amount to be associated, when derived data table is real time data table, remote measurement amount is associated with SV data, associated data
Record short address takes the data short address receiving SV data model；Measure and control device receives and passes through intelligence between process layer SV and soft pressing plate
The control data table of energy transformer station SCD is associated, and when control data table is soft pressing plate table, SV closes with soft pressing plate data
Connection, associated data record short address takes the data short address of soft pressing plate data model.Measure and control device is built by program and short address
Vertical mapping relations, it is achieved remote measurement is sent in the associated data of SV with SV, soft pressing plate, backstage obtains the real-time number of protective current in real time
According to.
When there is the soft pressing plate of SV, the associated data in SV model short address has 2, realizes remote measurement amount and SV, soft respectively
Pressing plate associates with SV's.
Sending application on the void circuit system GOOSE of intelligent substation short address as shown in Figure 4, the position of disconnecting link is believed by process layer
Number setting up mapping relations by short address improved procedure by intelligent substation station SCD and measure and control device, measure and control device received
Journey layer GOOSE and on send and be associated by searching data block derived data table and data short address between remote signalling amount, work as reception
GOOSE with above to send the derived data table of remote signalling amount model and data short address be associated data time the most identical, associated data record
Short address also takes the data short address receiving GOOSE model, and measure and control device sets up mapping relations by program and short address, it is achieved
Sending in remote signalling, backstage obtains disconnecting link location status in real time.
When receiving two point GOOSE amount and having the soft pressing plate of control, the associate field in second data of two point is set to association
Control the data record of soft pressing plate；When receiving two point GOOSE amount without controlling soft pressing plate, the associated characters in second data of two point
It is invalid that section is set to.
The present invention devises a kind of Intelligent substation merging unit collocation method improved based on short address, improves intelligence
The field adjustable efficiency of transformer station, improves the intelligent level of the combining unit of intelligent substation, in IEC61850 short address
On the basis of expand according to certain rule, it is adaptable to Intelligent substation merging unit harvester receive passage, SV send,
The Information expansions such as GOOSE transmitting-receiving, are conducive to improving the standardization of combining unit short address, in the debugging process of intelligent substation
In, automatically generate the data source of configuration, substantially increase the work efficiency of commissioning staff, have bigger use value.
Those skilled in the art are under the inspiration that the technology of the present invention is conceived, and on the basis of not taking off present invention, also may be used
So that said method and device are made various improvement, this still falls within the scope and spirit of the invention.
Claims (3)
1. the Intelligent substation merging unit collocation method improved based on short address, it is characterised in that step is as follows:
1) SCD configuration tool is according to the SCD file of combining unit ICD file generated intelligent substation；Short in described ICD file
Address comprises the configuration information of combining unit, and configuration information is corresponding with the empty terminal number of short address；Described configuration information includes
At least one of the most various information: communication numeric type and numbering, cpu type and numbering, data table data type and numbering,
Derived data type and numbering, associate/chain rupture data indicate, combining unit harvester and ID, combining unit harvester passage class
Type and passage, combining unit harvester data source types and group, combining unit analog digital conversion no-load voltage ratio type and no-load voltage ratio, and merge
Unit association channel switch attribute arranged side by side identifies；
2) utilize combining unit configuration tool that the short address in SCD file is resolved, derive the configuration of combining unit information
File；
3) combining unit instrument is utilized to be downloaded to by configuration information in combining unit to complete configuration process.
Method the most according to claim 1, it is characterised in that the short address form in described ICD file is as follows:
SAddr=" Axx:Bxx.Cxx.Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx "；
Being applicable to the situation that Data Source is single, wherein, Axx field is communication numeric type+numeral numbering；Bxx field is CPU
+ CPU number；Cxx field is data table data type+numeral numbering；Dxx field is derived data type+numeral numbering；
Exxyyzzzz field is association/chain rupture Data Identification；Fxx field is combining unit harvester+ID；Gxx field is combining unit
Harvester channel type+passage；Hxx field is combining unit harvester data source types+group；Ixx field is combining unit mould
Number conversion no-load voltage ratio type+no-load voltage ratio；Jxx field is combining unit association channel switch attribute arranged side by side mark.
Method the most according to claim 1, it is characterised in that the short address form in described ICD file is as follows:
SAddr=" Axx:Bxx.Cxx.Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx,
Dxx.Exxyyzzzz.Fxx.Gxx.Hxx.Ixx.Jxx"；
Being applicable to the situation that Data Source is the most single, wherein, Axx field is communication numeric type+numeral numbering；Bxx field is
CPU+CPU numbers；Cxx field is data table data type+numeral numbering；Dxx field is derived data type+numeral numbering；
Exxyyzzzz field is association/chain rupture Data Identification；Fxx field is combining unit harvester+ID；Gxx field is combining unit
Harvester channel type+passage；Hxx field is combining unit harvester data source types+group；Ixx field is combining unit mould
Number conversion no-load voltage ratio type+no-load voltage ratio；Jxx field is combining unit association channel switch attribute arranged side by side mark.
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| CN108462170A (en) * | 2018-04-04 | 2018-08-28 | 国网福建省电力有限公司电力科学研究院 | Intelligent substation interval combining unit voltage automatic Synchronization and method for handover control |
| CN108960439A (en) * | 2017-05-27 | 2018-12-07 | 许继集团有限公司 | A kind of intelligent O&M method towards GOOSE/SV soft pressing plate |
| CN110995490A (en) * | 2019-12-03 | 2020-04-10 | 国网上海市电力公司 | In-situ module device and configuration-free method |
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