CN108197716A - Secondary equipment of intelligent converting station safety measure previews online and anti-error method for early warning - Google Patents
Secondary equipment of intelligent converting station safety measure previews online and anti-error method for early warning Download PDFInfo
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Abstract
The present invention is suitable for transformer station secondary system intelligence O＆M technical field, provides a kind of secondary equipment of intelligent converting station safety measure preview and anti-error method for early warning online, establishes safety measure operational elements collection and secondary device safety measure preview model；Design action indicator light, locking indicator light, establish corresponding logic rules library, the corresponding indicator light of condition for meeting logic rules library is lighted respectively for two indicator lights；Acquire substation's MMS, GOOSE information, generate substation safety measure preview original state, the preview of secondary device safety measure is realized on the secondary device actual situation loop diagram of foundation, Dynamic Display safety measure previews process, and early warning is not exclusively carried out to being isolated automatically according to actual situation loop diagram after safety measure operation.The secondary device of abstract complexity by way of picture is subjected to analog demenstration, learns convenient for operation and maintenance and service personnel, effective directive function is played to execute-in-place.
Description
Technical field
The invention belongs to transformer station secondary system intelligence O＆M technical fields more particularly to a kind of intelligent substation secondary to set
Standby maintenance and the preview of reorganization and expansion safety measure and anti-error method for early warning.
Background technology
Intelligent substation is based on networking, digitlization, using IEC61850 architectural frameworks, realizes the intercommunication of IED equipment rooms
Interconnection.And with the propulsion and development of China's intelligent power grid technology, intelligent substation be faced with a large amount of periodic check, defect elimination,
The live task such as enlarging.The information transmission of intelligent substation networking, equipment room couple close, configuration file application and cause two
Equipment room security isolation is difficult in secondary device maintenance, enlarging and transformation process, and safety measure abstract complicates, conventional power transformation
The safety measure based on " apparent electrical cut-off point " of standing no longer has been applicable in.This is to verification, enlarging and transformation of intelligent substation etc.
Site maintenance operations bring larger security risk, increase enforcement difficulty；Especially during substation changes, extends, stand in
The variation of intelligent secondary device configuration file causes relevant device and circuit impacted, and coverage is determining and circuit
Verification considerably increases the enforcement difficulty of maintenance, enlarging and retrofit work.
In secondary equipment of intelligent converting station operation and maintenance and maintenance, protect soft pressing plate, overhaul of the equipments pressing plate and trip out
It is an important process that operation is moved back in the throwing of mouth pressing plate.In substation secondary device maintenance and process of fault isolation is carried out, Zeng Duo
It is secondary occur because miscarry, leak throw pressing plate and clamp operation sequence it is improper caused by primary equipment trip accident.One side of these accidents
Face is since field technician's work mistake causes；On the other hand it is because in current intelligent substation regulation, with pressing plate
It is excessively general to operate related content, effective directive function can not be played to operation and maintenance and service personnel's execute-in-place, so as to
Increase the security risk of substation secondary device maintenance and Fault Isolation work.
Invention content
In view of this, it previews and prevents online an embodiment of the present invention provides a kind of secondary equipment of intelligent converting station safety measure
Accidentally method for early warning solves the problems, such as that secondary device safety measure and anti-error early warning are abstracted, are complicated, has secondary device safety measure
And the anti-error visual feature of early warning.Safety measure preview is performed based on certain substation's original state, if initially
State is inconsistent with on-site actual situations, even if safety measure is correct, preview result correctly cannot guarantee that result of implementation just
True property.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of secondary equipment of intelligent converting station peace
Full measure previews online and anti-error method for early warning, includes the following steps：
(1) it establishes peace and arranges operational elements collection, operated including once switching, every the division of knife, earthing knife-switch, secondary SV inputs pressure
Plate operates, GOOSE inputs, output clamp operation, operation/maintenance clamp operation, the soft clamp operation of defencive function, and tripping outlet is hard
Clamp operation plugs fiber operation；
(2) arrange operational elements collection with reference to peace, be configured SCD model files, generation for visual presentation substation's figure
File, i.e. substation secondary device actual situation loop diagram；
(3) secondary device safety measure preview model is established, IEDs is abstracted as a center IED and one general
The association of IED；
(4) design protection action indicator, protection blocking indicator light are established one for two indicator lights and corresponding are patrolled respectively
Rule base is collected, the corresponding indicator light of condition for meeting logic rules library is lighted；
(5) initial state is obtained online, according to preview model and preview logic rule on the secondary device actual situation loop diagram of foundation
Then, the preview of secondary device safety measure, Dynamic Display safety measure preview process are realized.
Further, in the step (2) SCD model files configuration method include it is following：
Establish optical fiber connection with logical links, IED plug-in units, optical port number mapping model；
Establish the switch in primary system main wiring diagram, the mapping model every knife, earthing knife-switch and GOOSE data sets；
Establish defencive function pressing plate, SV inputs pressing plate, GOOSE inputs, output pressing plate, maintenance/operation pressing plate, optical fiber chain rupture
Information and MMS dsRelayEna, the mapping model of dsWarning, SV input pressing plates include SV control sources pressing plate, SV electric currents
Input pressing plate, SV voltage and currents input pressing plate；
Establish MU, intelligent terminal overhauls/run pressing plate, optical fiber chain rupture information and GOOSE data set stripe purpose mapping models；
Establish interchanger connect with optical fiber, the mapping model of logical links, optical port number.
Further, the secondary device actual situation loop diagram of the step (2) is included in a figure while showroom is every master
Wiring information, Quadratic Imaginary link information, the hard pressing plate information of maintenance/operation, SV input pressing plate information, GOOSE input, export it is soft
Pressing plate information, tripping export hard pressing plate information, optical fiber link information.
Further, associated relationship includes SV input associations in the step (3), and carry input terminal pressing plate, GOOSE are defeated
Enter association, carry input terminal pressing plate, GOOSE output associations, output terminal band pressing plate, the hard pressing plate of operation/maintenance, the hard pressure in tripping outlet
Plate, optical fiber connection association.
Further, the protection act of the step (4) refers to that differential protection acts, i.e., caused by peace arranges operation possible
Protection misoperation, the logic rules in the step (4) in logic rules library are：
Protection act=" IEDA branch currents SV input pressing plates exit " ∩ " IEDA differential protection functions pressing plate input " ∩
" branch primary equipment logic in operating status " ∩ " put into operation a circuitry number decision logic " ∩ " no IEDA MU, intelligence
Terminal overhauls inconsistent latching logic " " IEDA branches trip ∩ " no IEDA MU, intelligent terminal optical fiber chain rupture latching logic " ∩
The soft pressing plate inputs of GOOSE " ∩ " branch intelligent terminal exports hard pressing plate input "；
Protection blocking=" the inconsistent latching logic of operation-maintenance " ∪ " optical fiber chain rupture latching logic " ∪ " voltage protection work(
Energy latching logic " ∪ " current protecting function latching logic " ∪ " failure, shunt tripping defencive function latching logic ".
Further, step (5) the Dynamic Display safety measure preview process includes the following steps：
It is online to obtain original state, according to adding operation task mould item by item from task-set selection operation mission mode or manually
Formula previews maintenance object；
The online original state that obtains interacts real-time acquisition with protective device including access MMS nets using IEC61850-8 stipulations
The soft or hard pressing plate information of protective device, optical fiber chain rupture information, access procedure layer network by parse GOOSE Receive messages switch, every
Knife, earthing knife-switch status information, MU, intelligent terminal the hard pressing plate information of operation/maintenance, optical fiber chain rupture information, according to the information of acquisition,
Generate the operation original state of whole station.
Further, it is described to refer to import in arranging ticket from the correct peace of configuration from task-set selection operation mission mode, so
Content is arranged to preview item by item according to peace afterwards, the operation of next step item can be carried out by the way that the time is automatically or manually controlled；It is described manually by
Addition operation task pattern refer to artificially set overhaul hard pressing plate, defencive function pressing plate, SV inputs/SV export soft pressing plate,
The throwing of the soft pressing plate of GOOSE input/output moves back, exports hard pressing plate, optical fiber break-make, switch division progress safety measure preview.
Further, the preview model and preview logic rules, the association including being established according to actual situation loop diagram are closed
System is matched each IED associated by the IED of center by preview model, according to every single stepping by preview logic rules
It calculates, two kinds of generation protection act, protection blocking results.
It is using advantageous effect caused by above-mentioned technical proposal：The present invention is by designing secondary equipment of intelligent converting station
Safety measure previews online and anti-error method for early warning, includes the following steps：
(1) it establishes peace and arranges operational elements collection, operated including once switching, every the division of knife, earthing knife-switch, secondary SV inputs pressing plate
Operation, GOOSE inputs, output clamp operation, operation/maintenance clamp operation, the soft clamp operation of defencive function, the hard pressure in tripping outlet
Plate operates, and plugs fiber operation；
(2) arrange operational elements collection with reference to peace, be configured SCD model files, generation for visual presentation substation's figure
File, i.e. substation secondary device actual situation loop diagram；
(3) secondary device safety measure preview model is established, IEDs is abstracted as a center IED and one general
The association of IED；
(4) design protection action indicator, protection blocking indicator light are established one for two indicator lights and corresponding are patrolled respectively
Rule base is collected, the corresponding indicator light of condition for meeting logic rules library is lighted；
(5) initial state is obtained online, according to preview model and preview logic rule on the secondary device actual situation loop diagram of foundation
Then, the preview of secondary device safety measure, Dynamic Display safety measure preview process are realized.
By such design, the secondary device of abstract complexity by way of picture is subjected to analog demenstration, makes secondary set
Standby safety measure becomes intuitive, learns convenient for operation and maintenance and service personnel, effective directive function is played to execute-in-place.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is secondary equipment of intelligent converting station safety measure provided in an embodiment of the present invention preview and the anti-error pre- police online
The logical flow chart of method；
Fig. 2 is IED associations abstract model figure provided in an embodiment of the present invention；
Fig. 3 is substation's initial state information acquisition figure provided in an embodiment of the present invention based on MMS and GOOSE；
Fig. 4 is safety measure visualization schematic diagram provided in an embodiment of the present invention.
Specific embodiment
In being described below, in order to illustrate rather than in order to limit, it is proposed that such as tool of particular system structure, technology etc
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specifically
The present invention can also be realized in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
Road and the detailed description of method, in case unnecessary details interferes description of the invention.
As shown in Figure 1, it previews and prevents online for secondary equipment of intelligent converting station safety measure provided in an embodiment of the present invention
The accidentally logical flow chart of method for early warning, includes the following steps：
(1) it establishes peace and arranges operational elements collection, operated including once switching, every the division of knife, earthing knife-switch, secondary SV inputs pressure
Plate operates, GOOSE inputs, output clamp operation, operation/maintenance clamp operation, the soft clamp operation of defencive function, and tripping outlet is hard
Clamp operation plugs fiber operation；
(2) arrange operational elements collection with reference to peace, be configured SCD model files, generation for visual presentation substation's figure
File, i.e. substation secondary device actual situation loop diagram；
(3) secondary device safety measure preview model is established, IEDs is abstracted as a center IED and one general
The association of IED；
(4) design protection action indicator, protection blocking indicator light are established one for two indicator lights and corresponding are patrolled respectively
Rule base is collected, the corresponding indicator light of condition for meeting logic rules library is lighted；
(5) initial state is obtained online, according to preview model and preview logic rule on the secondary device actual situation loop diagram of foundation
Then, the preview of secondary device safety measure, Dynamic Display safety measure preview process are realized.
By such design, the secondary device of abstract complexity by way of picture is subjected to analog demenstration, makes secondary set
Standby safety measure becomes intuitive, learns convenient for operation and maintenance and service personnel, effective directive function is played to execute-in-place.
In one embodiment of the present of invention, the configuration method of SCD model files includes following in step (2)：
Establish optical fiber connection with logical links, IED plug-in units, optical port number mapping model；
Establish the switch in primary system main wiring diagram, the mapping model every knife, earthing knife-switch and GOOSE data sets；
Establish defencive function pressing plate, SV inputs pressing plate, GOOSE inputs, output pressing plate, maintenance/operation pressing plate, optical fiber chain rupture
Information and MMS dsRelayEna, the mapping model of dsWarning, SV input pressing plates include SV control sources pressing plate, SV electric currents
Input pressing plate, SV voltage and currents input pressing plate；
Establish MU, intelligent terminal overhauls/run pressing plate, optical fiber chain rupture information and GOOSE data set stripe purpose mapping models；
Establish interchanger connect with optical fiber, the mapping model of logical links, optical port number.
In one embodiment of the present of invention, the protection act of step (4) refers to that differential protection acts, i.e., peace arranges operation can
Protection misoperation caused by energy, the logic rules in step (4) in logic rules library are：
Protection act=" IEDA branch currents SV input pressing plates exit " ∩ " IEDA differential protection functions pressing plate input " ∩
" branch primary equipment logic in operating status " ∩ " put into operation a circuitry number decision logic " ∩ " no IEDA MU, intelligence
Terminal overhauls inconsistent latching logic " " IEDA branches trip ∩ " no IEDA MU, intelligent terminal optical fiber chain rupture latching logic " ∩
The soft pressing plate inputs of GOOSE " ∩ " branch intelligent terminal exports hard pressing plate input "；
Protection blocking=" the inconsistent latching logic of operation-maintenance " ∪ " optical fiber chain rupture latching logic " ∪ " voltage protection work(
Energy latching logic " ∪ " current protecting function latching logic " ∪ " failure, shunt tripping defencive function latching logic ".
In one embodiment of the present of invention, the secondary device actual situation loop diagram of the step (2) is included in a figure together
When showroom every main electrical scheme information, Quadratic Imaginary link information, the hard pressing plate information of maintenance/operation, SV input pressing plate information, GOOSE
It inputs, export soft pressing plate information, tripping exports hard pressing plate information, optical fiber link information.
In one embodiment of the present of invention, the preview model and preview logic rules, including according to actual situation loop diagram institute
The incidence relation of foundation is matched each IED associated by the IED of center by preview model, is pressed according to every single stepping
Preview logic rules calculate, two kinds of generation protection act, protection blocking results.
As shown in Fig. 2, being associated with abstract model figure for IED provided in an embodiment of the present invention, associated relationship is inputted including SV
Association, carry input terminal pressing plate, GOOSE input association, carry input terminal pressing plate, GOOSE output association, output terminal band pressing plate, operation/
Overhaul hard pressing plate, tripping exports hard pressing plate, optical fiber connection association.
In one embodiment of the present of invention, step (5) Dynamic Display safety measure preview process includes the following steps：
As shown in figure 3, obtain original state online, according to adding item by item from task-set selection operation mission mode or manually
Operation task pattern previews maintenance object；The online original state that obtains is used including access MMS nets and protective device
The interaction of IEC61850-8 stipulations obtains the soft or hard pressing plate information of protective device, optical fiber chain rupture information in real time, and access procedure layer network leads to
It crosses parsing GOOSE message and obtains switch, every knife, earthing knife-switch status information, MU, the hard pressing plate information of operation/maintenance of intelligent terminal, light
Fine chain rupture information according to the information of acquisition, generates the operation original state of whole station.
Wherein, refer to import in arranging ticket from the correct peace of configuration from task-set selection operation mission mode, then according to peace
Content is arranged to preview item by item, the operation of next step item can be carried out by the way that the time is automatically or manually controlled；Addition operation is appointed item by item manually
Business pattern, which refers to artificially set, overhauls hard pressing plate, defencive function pressing plate, the SV inputs/soft pressing plate of SV outputs, GOOSE input/output
The throwing of soft pressing plate moves back, exports hard pressing plate, optical fiber break-make, switch division progress safety measure preview.
As shown in figure 4, visualizing schematic diagram for safety measure provided in an embodiment of the present invention, the protection involved in figure is secondary
The key link arranged of maintenance peace, is apparent that the scope of repair of the protection by figure, at the same can also on the diagram into
The corresponding operation of row carries out simulation preview to maintenance object.
During simulation preview, the interval all devices setting initial state.With reference to logic rules library, when judging simulation preview, often
Change caused by single stepping.
Preview safety measure operation terminates, and checks whether center IED is completely isolated automatically according to actual situation loop diagram, does not have such as
There is completely isolated automatic carry out early warning, center IED is highlighted and the virtual connections without being isolated flicker.
For example, combining unit puts maintenance, on figure, combining unit maintenance pressing plate, which has, point becomes to close, 220KV XX lines first
Set protection equipment can be alerted, is latched, so as to which warning light, locking lantern festival are lighted on figure.
Pull out 220KV XX lines first set protection equipment and the optical fiber of 220KV XX line first set intelligent terminals, figure glazing
Fine state has communication state to become chain rupture state.220KV XX lines first set protection equipment can alert, so as to the alarm on figure
Lantern festival is lighted.
The sequence in operation order can also be arranged to be operated accordingly on the diagram according to peace, every single stepping be carried out pre-
It is alert, not exclusively carry out early warning to being isolated.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to aforementioned reality
Example is applied the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each
Technical solution recorded in embodiment modifies or carries out equivalent replacement to which part technical characteristic；And these are changed
Or replace, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (8)
1. a kind of secondary equipment of intelligent converting station safety measure online preview and anti-error method for early warning, which is characterized in that including with
Lower step：
(1) it establishes peace and arranges operational elements collection, operated including once switching, every the division of knife, earthing knife-switch, secondary SV inputs pressing plate behaviour
Make, GOOSE inputs, output clamp operation, operation/maintenance clamp operation, the soft clamp operation of defencive function, tripping exports hard pressing plate
Operation plugs fiber operation；
(2) arrange operational elements collection with reference to peace, be configured SCD model files, generation for visual presentation substation's graphic file,
That is substation secondary device actual situation loop diagram；
(3) secondary device safety measure preview model is established, IEDs is abstracted as a center IED's and general purpose I ED
Association；
(4) design protection action indicator, protection blocking indicator light establish a corresponding logic rule respectively for two indicator lights
Then library, the corresponding indicator light of condition for meeting logic rules library are lighted；
(5) initial state is obtained online, it is real according to preview model and preview logic rules on the secondary device actual situation loop diagram of foundation
Existing secondary device safety measure preview, Dynamic Display safety measure preview process.
2. secondary equipment of intelligent converting station safety measure according to claim 1 previews online and anti-error method for early warning,
It is characterized in that, the configuration method of SCD model files includes following in the step (2)：
Establish optical fiber connection with logical links, IED plug-in units, optical port number mapping model；
Establish the switch in primary system main wiring diagram, the mapping model every knife, earthing knife-switch and GOOSE data sets；
Establish defencive function pressing plate, SV inputs pressing plate, GOOSE inputs, output pressing plate, maintenance/operation pressing plate, optical fiber chain rupture information
With MMS dsRelayEna, the mapping model of dsWarning, SV input pressing plates include SV control sources pressing plate, SV electric currents input
Pressing plate, SV voltage and currents input pressing plate；
Establish MU, intelligent terminal overhauls/run pressing plate, optical fiber chain rupture information and GOOSE data set stripe purpose mapping models；
Establish interchanger connect with optical fiber, the mapping model of logical links, optical port number.
3. secondary equipment of intelligent converting station safety measure according to claim 1 previews online and anti-error method for early warning,
Be characterized in that, the secondary device actual situation loop diagram of the step (2) be included in a figure simultaneously showroom every main electrical scheme information,
Quadratic Imaginary link information, the hard pressing plate information of maintenance/operation, SV input pressing plate information, GOOSE inputs export soft pressing plate information, jump
Lock exports hard pressing plate information, optical fiber link information.
4. secondary equipment of intelligent converting station safety measure according to claim 1 previews online and anti-error method for early warning,
It is characterized in that, associated relationship includes SV input associations in the step (3), and carry input terminal pressing plate, GOOSE input associations are defeated
Enter end band pressing plate, GOOSE output associations, output terminal band pressing plate, the hard pressing plate of operation/maintenance, tripping export hard pressing plate, optical fiber connection
Association.
5. secondary equipment of intelligent converting station safety measure according to claim 1 previews online and anti-error method for early warning,
It is characterized in that, the protection act of the step (4) refers to that differential protection acts, that is, pacifies false protection caused by arranging operation possible
Make, the logic rules in the step (4) in logic rules library are：
Protection act=" IEDA branch currents SV input pressing plates exit " ∩ " IEDA differential protection functions pressing plate input " ∩ " branches
Primary equipment logic in operating status " ∩ " put into operation a circuitry number decision logic " ∩ " no IEDA MU, intelligent terminal
Overhaul inconsistent latching logic " ∩ " no IEDA MU, intelligent terminal optical fiber chain rupture latching logic " ∩ " IEDA branches tripping GOOSE
Soft pressing plate input " ∩ " branch intelligent terminal exports hard pressing plate input "；
Protection blocking=" voltage protection function closes ∪ " the inconsistent latching logic of operation-maintenance " ∪ " optical fiber chain rupture latching logic "
Lock logic " ∪ " current protecting function latching logic " ∪ " failure, shunt tripping defencive function latching logic ".
6. secondary equipment of intelligent converting station safety measure according to claim 1 previews online and anti-error method for early warning,
It is characterized in that, step (5) the Dynamic Display safety measure preview process includes the following steps：
It is online to obtain original state, according to adding operation task pattern pair item by item from task-set selection operation mission mode or manually
Maintenance object is previewed；
Online acquisition original state is interacted including access MMS nets with protective device using IEC61850-8 stipulations obtains protection in real time
The soft or hard pressing plate information of device, optical fiber chain rupture information, access procedure layer network by parse GOOSE message obtain switch, every knife,
Knife status information, MU, intelligent terminal the hard pressing plate information of operation/maintenance, optical fiber chain rupture information, according to the information of acquisition, generation
The operation original state of whole station.
7. secondary equipment of intelligent converting station safety measure according to claim 6 previews online and anti-error method for early warning,
It is characterized in that, it is described to refer to import in arranging ticket from the correct peace of configuration from task-set selection operation mission mode, then according to peace
Content is arranged to preview item by item, the operation of next step item can be carried out by the way that the time is automatically or manually controlled；It is described that addition is grasped item by item manually
Refer to artificially set as mission mode overhaul hard pressing plate, defencive function pressing plate, SV inputs/SV export soft pressing plate, GOOSE inputs/
The throwing for exporting soft pressing plate moves back, exports hard pressing plate, optical fiber break-make, switch division progress safety measure preview.
8. secondary equipment of intelligent converting station safety measure according to claim 1 previews online and anti-error method for early warning,
It is characterized in that, the preview model and preview logic rules, including the incidence relation established according to actual situation loop diagram, to center
Each IED associated by IED is matched by preview model, is calculated according to every single stepping by preview logic rules,
Generate two kinds of protection act, protection blocking results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383899.XA CN108197716A (en) | 2017-12-20 | 2017-12-20 | Secondary equipment of intelligent converting station safety measure previews online and anti-error method for early warning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383899.XA CN108197716A (en) | 2017-12-20 | 2017-12-20 | Secondary equipment of intelligent converting station safety measure previews online and anti-error method for early warning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108197716A true CN108197716A (en) | 2018-06-22 |
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| CN110930122A (en) * | 2019-11-29 | 2020-03-27 | 国网宁夏电力有限公司检修公司 | Method for executing and testing automatic safety measures of relay protection of intelligent station |
| CN110989460A (en) * | 2019-12-24 | 2020-04-10 | 积成电子股份有限公司 | Secondary locking signal anti-error method in sequential control operation |
| CN111126798A (en) * | 2019-12-10 | 2020-05-08 | 贵州电网有限责任公司 | Intelligent station secondary safety measure method and system based on primary and secondary simulation |
| CN114362372A (en) * | 2022-01-12 | 2022-04-15 | 国网安徽省电力有限公司宣城供电公司 | Secondary safety measure automatic checking system and method based on online monitoring data |
| CN114498930A (en) * | 2022-01-21 | 2022-05-13 | 国网安徽省电力有限公司宣城供电公司 | Automatic generation method for intelligent substation safety measures based on model files |
| CN117761584A (en) * | 2024-02-22 | 2024-03-26 | 保定华创电气有限公司 | Fault detection method and device for power transformer, electronic equipment and medium |
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| CN114362372A (en) * | 2022-01-12 | 2022-04-15 | 国网安徽省电力有限公司宣城供电公司 | Secondary safety measure automatic checking system and method based on online monitoring data |
| CN114498930A (en) * | 2022-01-21 | 2022-05-13 | 国网安徽省电力有限公司宣城供电公司 | Automatic generation method for intelligent substation safety measures based on model files |
| CN117761584A (en) * | 2024-02-22 | 2024-03-26 | 保定华创电气有限公司 | Fault detection method and device for power transformer, electronic equipment and medium |
| CN117761584B (en) * | 2024-02-22 | 2024-05-17 | 保定华创电气有限公司 | Fault detection method and device for power transformer, electronic equipment and medium |
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