CN107275963A - A kind of intelligent substation secondary maintenance safety measure automatic generation method - Google Patents
A kind of intelligent substation secondary maintenance safety measure automatic generation method Download PDFInfo
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- CN107275963A CN107275963A CN201710533409.3A CN201710533409A CN107275963A CN 107275963 A CN107275963 A CN 107275963A CN 201710533409 A CN201710533409 A CN 201710533409A CN 107275963 A CN107275963 A CN 107275963A
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- pressing plate
- safety measure
- interval
- equipment
- repair apparatus
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention discloses a kind of intelligent substation secondary maintenance safety measure automatic generation method, it comprises the following steps：S1, selecting object equipment, power failure type, job category；S2, maintenance interval judge, judge whether power down mode of equipment in same interval is consistent, continue if consistent, point out to report an error and return gravity treatment if inconsistent；S3, isolating points judge：When the equipment of link both sides has operational outfit, it is considered to safety measure, otherwise do not consider；S4, safety measure order policies：Traversal chooses equipment, parsing mapping connection, analysis isolating points；S5, according to input information matches safety measure production rule, connected according to rule of correspondence mapped device, sequentially list cut-off point, generation safety measure simultaneously terminates.The present invention is capable of field management and the required level of service of powerful support intelligent substation secondary O＆M maintainer, intelligent station operating efficiency is significantly improved, and improves intelligent substation managerial skills.
Description
Technical field
The present invention relates to intelligent substation O＆M field, especially a kind of intelligent substation secondary maintenance safety measure is automatic
Generation method.
Background technology
Intelligent substation has larger difference compared with normal station in terms of O＆M maintenance, and difficulty is brought to fortune inspection business,
It is primarily present problems with：
(1) virtual circuit is difficult to intuitively be observed, and multiple virtual circuits are usually contained in simple optical fiber, and operation maintenance personnel is checked
Had difficulties with operation secondary circuit.
(2) intelligent station instead of hard pressing plate using soft pressing plate in design, and secondary device can not disconnect means by physics
Xegregating unit；Smart machine is interconnected extensively by network simultaneously, and overhaul of the equipments needs the safety measure taken to greatly increase, safety
The formulation and confirmation of measure become complicated difficult.
(3) the need for O＆M, maintainer's level of skill are generally difficult in adapt to intelligent substation fast development, secondary circuit
There is security risk.
The content of the invention
A kind of intelligent substation secondary maintenance safety measure is provided it is an object of the invention to solve above-mentioned technical problem
Automatic generation method, this method can aid in O＆M maintainer intuitively to check virtual circuit, determine overhaul of the equipments safety measure,
Safety measure implementation status is checked, mitigates O＆M maintainer's operating pressure, the security risk of smart machine service work is eliminated.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：
A kind of intelligent substation secondary maintenance safety measure automatic generation method, comprises the following steps：
S1, selecting object equipment, power failure type, job category；
S2, maintenance interval judge, judge whether power down mode of equipment in same interval consistent, if unanimously if after
It is continuous, point out to report an error and return gravity treatment if inconsistent；
S3, isolating points judge
(1) SCD file is parsed, repair apparatus is analyzed successively, all send and receive is analyzed centered on repair apparatus
Link；
(2) when the equipment of link both sides is repair apparatus, safety measure is not considered and is terminated；
(3) when the side apparatus side of link two is repair apparatus, and side is operational outfit, it is considered to safety measure；
S4, safety measure order policies
(1) all repair apparatus chosen are traveled through for the first time, isolating points are analyzed, and the SV of equipment out of service receives soft pressure
Plate；
(2) all repair apparatus chosen are traveled through for the second time, isolating points are analyzed, and the GOOSE of equipment out of service receives soft
Pressing plate；
(3) all repair apparatus chosen are traveled through for the third time, isolating points are analyzed, and the GOOSE for exiting repair apparatus sends soft
Pressing plate；
(4) disconnect if needed and run the optical fiber circuit between link, if isolating points repair apparatus side is without the soft pressure of transmission
Plate, then disconnect the optical fiber circuit of isolating points；
(5) if the interval primary equipment does not have a power failure, exit the interval intelligent terminal and export hard pressing plate；
(6) the maintenance pressing plate of repair apparatus is put into；
(7) if the interval primary equipment has a power failure, electric current disconnects and short circuit, and voltage disconnects；
S5, according to input information matches safety measure production rule, according to rule of correspondence mapped device connect, sequentially list
Cut-off point, generates safety measure and terminates.
Power failure type represents that correspondence primary equipment has a power failure or do not had a power failure in the step S1, and job category includes overhaul plan
And defect processing.
Maintenance interval judges to include the judgement of 500kV switch gaps, the judgement of 500kV line segregations, 500kV in the step S2
Main transformer interval judges, 500kV buses interval judges, 220kV line segregations judge, 220kV main transformers interval judges and 220kV buses
Interval judges.
The beneficial effects of the invention are as follows：The present invention is capable of the scene of powerful support intelligent substation secondary O＆M maintainer
Management and required level of service, make intelligent station operating efficiency be significantly improved, and improve intelligent substation managerial skills.
Brief description of the drawings
Fig. 1 is a kind of flow chart of intelligent substation secondary maintenance safety measure automatic generation method of the invention.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Referring to Fig. 1, the present invention relies on technology of Internet of things, proposes that a kind of intelligent substation secondary maintenance safety measure is given birth to automatically
Into method, secondary circuit safety measure can be automatically generated, its main logic is：
(1) selecting object equipment, power failure type (correspondence primary equipment has a power failure or do not had a power failure), job category (are overhauled or lacked
Fall into processing)；
(2) connection of analysis object equipment and other operational outfits, analyzes available logic cut-off point (soft pressing plate) and thing
Manage cut-off point (hard pressing plate)；
(3) according to adjusting [2015] No. 92 documentation requirements to formulate safety measure production rule, according to input information matches rule,
Connected according to rule of correspondence mapped device；
(4) cut-off point is sequentially listed, safety measure is generated.
Embodiment
1. selection mode
(1) working method is selected：Defect elimination, verification, technological transformation.
(2) secondary repair apparatus is selected：It is parsed by SCD file.
(3) corresponding primary equipment power down mode：Whether each secondary device selection primary equipment of correspondence has a power failure.
2. maintenance interval is analyzed
2.1 500kV switch gaps judge
(1) if containing " breaker " and " protection " and " 500 " in IED descriptions, there is 500kV switch gaps, this IED
It is expressed as KGBH (switch protection)；
(2) in KGBH SV receives links, receive in empty terminal and contain " electric current ", for switch combining unit, this IED table
It is shown as KGMU (switch MU)；
(3) in KGBH GOOSE transmission links, send in terminal ref containing " Tr.phsA " and " Tr.phsB ",
" Tr.phsC's ", for switch intelligent terminal, this IED is expressed as KGST (switch intelligent terminal)；
(4) KGBH, KGMU, KGST belong to 500kV switch gaps simultaneously.
2.2 500kV line segregations judge
(1) contain " PL " if contained in IED descriptions in " line " and " protection " and " 500 ", name, there is 500kV lines
Road interval, this IED is expressed as XLBH (route protection)；
(2) in XLBH SV receives links, receive in empty terminal and contain " voltage ", be circuit PT combining units, this IED
It is expressed as XLMU (circuit MU)；
(3) in XLBH GOOSE transmission links, send in terminal ref containing " Tr.phsA " and " Tr.phsB ",
" Tr.phsC " for circuit intelligent terminal, this IED is expressed as XLST (circuit intelligent terminal)；
(4) XLBH, XLMU, XLST belong to 500kV line segregations simultaneously.
2.3 500kV main transformers intervals judge
(1) if containing { " main transformer " or " transformer " } and " protection " and " 500 " in IED descriptions, there is 500kV main transformers
Interval, this IED is expressed as ZBBH (main transformer protection)；
(2) in ZBBH SV receives links, receive in empty terminal and contain " high pressure " and " voltage ", be on high-tension side merging
Unit, this IED is expressed as ZBHMU (high-pressure side PT combining units)；
(3) ZBBH, ZBMU belong to 500kV main transformers interval simultaneously.
2.4 500kV buses intervals judge
(1) if containing { " bus " or " female poor " } and " protection " and " 500 " in IED descriptions, existed between 500kV buses
Every this IED is expressed as MXBH (bus protection).
2.5 220kV line segregations judge
(1) contain " PL " if contained in IED descriptions in " line " and " protection " and " 220 ", name, there is 220kV lines
Road interval, this IED is expressed as XLBH (route protection)；
(2) it is circuit combining unit in XLBH SV receives links, this IED is expressed as XLMU (circuit MU)；
(3) in XLBH GOOSE transmission links, send in terminal ref containing " Tr.phsA " and " Tr.phsB ",
" Tr.phsC " for circuit intelligent terminal, this IED is expressed as XLST (circuit intelligent terminal)；
(4) XLBH, XLMU, XLST belong to 220kV line segregations simultaneously.
2.6 220kV main transformers intervals judge
(1) if containing { " main transformer " or " transformer " } and " protection " and " 220 " in IED descriptions, there is 220kV main transformers
Interval, this IED is expressed as ZBBH (main transformer protection)；
(2) in ZBBH SV receives links, receive in empty terminal and contain " middle pressure ", be the combining unit of medium voltage side, this IED
It is expressed as ZBMMU (medium voltage side combining unit)；
(3) in ZBBH GOOSE transmission links, send terminal description and contain " jump " and " medium voltage side ", ZBMST is (in main transformer
Press side intelligent terminal)；
(4) ZBBH, ZBMMU, ZBMST belong to 220kV main transformers interval simultaneously.
2.7 220kV buses intervals judge
(1) if containing { " bus " or " female poor " } and " protection " and " 220 " in IED descriptions, existed between 220kV buses
Every this IED is expressed as MXBH (bus protection)；
(2) if containing " bus " and " combining unit " and " 220 " in IED descriptions, there is 220kV buses and merge single
Member, this IED is expressed as MXMU (bus combining unit)；
(3) MXBH, MXMU belong to 220kV buses interval simultaneously.
3. maintenance interval logic judgment
Power down mode of equipment in same interval should be consistent, inconsistent to point out to report an error, and returns to gravity treatment.
4. peace arranges strategy
4.1 the overall principle
(1) by analyzing logic relation picture of the SCD file acquisition using repair apparatus as visual angle, logic relation picture is analyzed one by one
In operational outfit and repair apparatus isolating points, the automatic peace that carries out arranges strategy generating.
(2) corresponding relation positioned with empty loop that the soft pressing plate in sending side can be accurately according to 1396 specifications, does not have
There is the use modeled according to 1396 specifications to obscure sentence to be described；The soft pressing plate of receiving side can not be accurately positioned the correspondence in empty loop
Relation, will be described by the sentence of vague description.
(3) it is every all to provide dsRelayEna soft pressing plate combobox using what fuzzy sentence was described, pass through
Manual type carries out accurate correlation, then generates accurately peace and arranges operation order and XML file, non-manual association's passes through Vague language
Generation is described in sentence.
(4) after all logical relations are formed, it should be that unit is arranged again according to equipment, merge the soft pressing plate of redundant link
(for part trip(ping) circuit and the soft pressing plate of failure loop shared module, software temporarily cannot be distinguished by, it is necessary to which artificial carried out
DsRelayEna maps).
(5) consider SSD file in each transformer station without, it is necessary to which artificial, this project considers all to use SCD
File generated.
4.2 isolating points judge
(1) SCD file is parsed, repair apparatus is analyzed successively, all send and receive is analyzed centered on repair apparatus
Link.
(2) when the equipment of link both sides is repair apparatus, do not consider that peace is arranged.
(3) when the side apparatus side of link two is repair apparatus, and side is operational outfit, it is considered to which peace is arranged.
4.3 peaces arrange order policies
(1) all repair apparatus chosen are traveled through for the first time, isolating points are analyzed, and the SV of equipment out of service receives soft pressure
Plate.
(2) all repair apparatus chosen are traveled through for the second time, isolating points are analyzed, and the GOOSE of equipment out of service receives soft
Pressing plate (only main transformer failure is opened opens into soft pressing plate into bus failure).
(3) all repair apparatus chosen are traveled through for the third time, isolating points are analyzed, and the GOOSE for exiting repair apparatus sends soft
Pressing plate (tripping operation, combined floodgate, start failure protection etc.).
(4) optical fiber circuit between operation link is disconnected if needed (if isolating points repair apparatus side is without the soft pressure of transmission
Plate, then disconnect the optical fiber circuit of isolating points).
(5) if the interval primary equipment does not have a power failure, exit the interval intelligent terminal and export hard pressing plate.
(6) the maintenance pressing plate of repair apparatus is put into.
(7) if the interval primary equipment has a power failure, electric current disconnects and short circuit, and voltage disconnects.
4.3.1 peace arranges logic strategy (A tickets) before secondary device stops using as a servant
4.3.1.1 GOOSE, SV judge
Reference name according to empty terminal is received distinguishes SV links and GOOSE links, if SVIN prefixes are then SV links,
If GOIN prefixes are then GOOSE links.
Ith, if SV links
One SV link needs receiving one soft pressing plate of SV receptions of correspondence, i.e., find corresponding in soft pressing plate data set
SV receive soft pressing plate, because empty loop and soft pressing plate information do not have corresponding relation, it is therefore desirable to artificial correspondence.
IIth, if GOOSE links
(1) send or receiving device contains " observing and controlling " keyword, be not provided with GOOSE and send and receive soft pressing plate.
(2) is not provided with by GOOSE and sends and receives soft pressing plate to send the link of equipment for intelligent terminal.
(3) other GOOSE links, should set GOOSE to send soft pressing plate in sending side.Three types are divided to illustrate：
A) if sending side is circuit, breaker protection, mapping method：
If empty terminal description contains " jumps ", the corresponding pressing plate of empty terminal is the soft pressing plate that trips, i.e., in soft pressing plate data set
Middle searching PTRC*.TrStrap reference name, and empty terminal is identical with the instance number of soft pressing plate；
If empty terminal description containing " lock-reclosing lock ", " jumping forever ", " combined floodgates is thought highly of in open circuit in locking ", " locking side is disconnected
Think highly of combined floodgate in road ", the corresponding pressing plate of empty terminal is the soft pressing plate of lock-reclosing, i.e., find PTRC* in soft pressing plate data set
.BlkRecStrp reference name, and empty terminal is identical with the instance number of soft pressing plate；
If empty terminal description contains " failure ", the corresponding pressing plate of empty terminal is the soft pressing plate of start failure protection, i.e., in soft pressing plate
PTRC*.StrBFStrp reference name is found in data set, and empty terminal is identical with the instance number of soft pressing plate；
If empty terminal description contains " reclosing ", the corresponding pressing plate of empty terminal is the soft pressing plate of reclosing, i.e., in soft pressing plate
RREC*.OpStrp reference name is found in data set, and empty terminal is identical with the instance number of soft pressing plate.
B) if sending side is bus, mapping method：
If empty terminal description contains " jumps ", the corresponding pressing plate of empty terminal is the soft pressing plate that trips, i.e., in soft pressing plate data set
Middle searching PTRC*.TrStrap reference name, and empty terminal is identical with the instance number of soft pressing plate；
If empty terminal description contains " start failure protection ", the corresponding pressing plate of empty terminal is the soft pressing plate of start failure protection, i.e., soft
PTRC*.StrBFStrp reference name is found in pressing plate data set, and empty terminal is identical with the instance number of soft pressing plate；
If empty terminal description contains " failure shunt tripping ", the corresponding pressing plate of empty terminal is the soft pressing plate of failure shunt tripping, i.e., soft
RBRF*.TrStrap reference name is found in pressing plate data set, and empty terminal is identical with the instance number of soft pressing plate.
C) if sending side is transformer, mapping method：
If empty terminal description contains " jumps ", the corresponding pressing plate of empty terminal is the soft pressing plate that trips, i.e., in soft pressing plate data set
Middle searching PTRC*.TrStrap reference name, and empty terminal is identical with the instance number of soft pressing plate；
If empty terminal description contains " start failure protection ", the corresponding pressing plate of empty terminal is the soft pressing plate of start failure protection, i.e., soft
PTRC*.StrBFStrp reference name is found in pressing plate data set, and empty terminal is identical with the instance number of soft pressing plate；
If empty terminal description contains " prepared auto restart ", the corresponding pressing plate of empty terminal is the soft pressing plate of failure shunt tripping, i.e., in soft pressure
GGIO*.TrStrap reference name is found in plate data set, and empty terminal is identical with the instance number of soft pressing plate.
(4) if receiving device is the failure loop of bus or main transformer protection, it is further added by receiving soft pressing plate, i.e., in soft pressing plate
Corresponding failure is found in data set to open into soft pressing plate, because empty loop and soft pressing plate information do not have corresponding relation, therefore is needed
Manually to correspond to.Such as " failure of high-pressure side 1 open into " correspondence " the side failure of high pressure 1 is opened into soft pressing plate ".
(5) if it is bus protection to send equipment, receiving device is intelligent terminal or side switch, tripping operation and start failure protection
It is to share trip pressing plate, i.e., the soft pressing plate of corresponding tripping operation is found in soft pressing plate data set.
4.3.1.2 optical fiber is disconnected
Disconnect if needed and run the optical fiber circuit between link.
4.3.1.3 export hard pressing plate
If the corresponding primary equipment of intelligent terminal has a power failure, intelligent terminal exits the hard pressing plate in outlet.
4.3.1.4 overhaul hard pressing plate
Put into the maintenance pressing plate of repair apparatus.
4.3.1.5 Current Voltage terminal
If the corresponding primary equipment of combining unit has a power failure, current loop is disconnected and short circuit in combining unit terminal block,
Voltage circuit disconnects.
4.3.2 transmission test peace arranges logic strategy (B tickets)
(1) all repair apparatus isolating points are traveled through, if " intelligent terminal " exits the hard pressing plate in tripping operation outlet；If not
" intelligent terminal " exports soft pressing plate to the GOOSE of operational outfit and exited at (except this interval).
(2) by this operational outfit input maintenance pressing plate.
5. peace arranges ticket Word to generate
Secondary work safety ticket
Unit：Overhaul branch companySubstation equipment maintenance and repair centerWork draft bank：___________
5.1 tested device titles
Perform one equipment of a ticket, IED titles+IED descriptions.
5.2 action
IED titles+IED descriptions+producer's model+working method.
5.3 loop classifications
(1) failure shunt tripping is switched
Sending side is that " { switch or breakers } and protection and 500 ", the empty terminal of sending side is described as " failure and
500 ", receiving side is " intelligent terminal and 500 ".
(2) the female difference tripping operation of unsuccessful reason
Sending side is that " { switch or breakers } and protection and 500 ", the empty terminal of sending side is described as " failure ", connect
It is " { mother difference or buses } and protections " to receive side.
(3) each side of failure shunt tripping main transformer
Sending side is " { switch or breakers } and protections ", and the empty terminal of sending side is described as " failure ", and receiving side is
" { main transformer or transformers } and protections ".
(4) hard contact point signal
Contain " hard contact ".
(5) inspecting state
Contain " maintenance pressing plate ".
6. peace arranges execution message (XML) to generate
6.1 file format
<Precaution>
<IED desc=" tranformer protection " name=" PT2201A " ipaddr=" 198.120.0.19 "/>
<Entry desc=" input tranformer protection maintenance pressing plate " ref=" LD0/GGIO1.SPCSO1.stVal "
Expect=" 1 "/>
<Entry desc=" exit middle failure and release to press off again and lock the soft pressing plate in GOOSE outlets " ref=" LD0/
GGIO1.SPCSO2.stVal " expect=" 0 "/>
<Entry desc=" exit startup medium voltage side breaker failure GOOSE and export soft pressing plate " ref=" LD0/
GGIO1.SPCSO3.stVal " expect=" 0 "/>
<Entry desc=" exit jump medium voltage side mother GOOSE and export soft pressing plate " " ref=" LD0/
GGIO1.SPCSO4.stVal " expect=" 0 "/>
<Entry desc=" exit jump medium voltage side segmentation 1GOOSE and export soft pressing plate " ref=" LD0/
GGIO1.SPCSO5.stVal " expect=" 0 "/>
<Entry desc=" exit jump medium voltage side segmentation 2GOOSE and export soft pressing plate " ref=" LD0/
GGIO1.SPCSO6.stVal " expect=" 0 "/>
<Entry desc=" the hard pressing plate of maintenance " ref=" LD0/GGIO1.Ind1.stVal " expect=" 1 "/>
</IED>
</Precaution>
(1) Precaution root elements, represent that peace arranges execution entry.
(2) IED elements, represent device information.One Precaution element includes one or more IED elements, IED category
Property has desc, name, ipaddr.Desc represents device descriptive information, and name represents IED title, and ipaddr represents IED IP
Address.
(3) Entry elements, represent the entry of safety measure.One IED element includes one or more Entry elements,
Entry attributes have desc, ref, expect.Desc represents that peace arranges content to describe；Ref represents that this peace arranges the signal of information to quote
Name；Expect represents that this peace arranges the desired value of information.
6.2 generation
The present invention proposes the logic that intelligent substation secondary maintenance safety measure is automatically generated, can be by by the logic
Correspond to job category generation safety measure automatically according to power failure equipments and working range, determine that secondary device isolating points and isolation are arranged
Apply, mitigate O＆M maintainer's operating pressure, eliminate the security risk of smart machine service work.
In summary, present disclosure is not limited in the above embodiments, and those skilled in the art can be
Propose other embodiments within the technological guidance's thought of the present invention, but these embodiments be included in the scope of the present invention it
It is interior.
Claims (3)
1. a kind of intelligent substation secondary maintenance safety measure automatic generation method, it is characterised in that comprise the following steps：
S1, selecting object equipment, power failure type, job category；
S2, maintenance interval judge, judge whether power down mode of equipment in same interval is consistent, continue if consistent,
Point out to report an error and return gravity treatment if inconsistent；
S3, isolating points judge
(1) SCD file is parsed, repair apparatus is analyzed successively, is analyzed centered on repair apparatus and all sends and receives link；
(2) when the equipment of link both sides is repair apparatus, safety measure is not considered and is terminated；
(3) when the side apparatus side of link two is repair apparatus, and side is operational outfit, it is considered to safety measure；
S4, safety measure order policies
(1) all repair apparatus chosen are traveled through for the first time, isolating points are analyzed, and the SV of equipment out of service receives soft pressing plate；
(2) all repair apparatus chosen are traveled through for the second time, isolating points are analyzed, and the GOOSE of equipment out of service receives soft pressing plate；
(3) all repair apparatus chosen are traveled through for the third time, isolating points are analyzed, and the GOOSE for exiting repair apparatus sends soft pressing plate；
(4) disconnect if needed and run the optical fiber circuit between link, if isolating points repair apparatus side is without the soft pressing plate of transmission,
Disconnect the optical fiber circuit of isolating points；
(5) if the interval primary equipment does not have a power failure, exit the interval intelligent terminal and export hard pressing plate；
(6) the maintenance pressing plate of repair apparatus is put into；
(7) if the interval primary equipment has a power failure, electric current disconnects and short circuit, and voltage disconnects；
S5, according to input information matches safety measure production rule, according to rule of correspondence mapped device connect, sequentially list disconnection
Point, generates safety measure and terminates.
2. according to a kind of intelligent substation secondary maintenance safety measure automatic generation method described in claim 1, its feature exists
In power failure type represents that correspondence primary equipment has a power failure or do not had a power failure in the step S1, and job category includes overhaul plan and lacked
Fall into processing.
3. according to a kind of intelligent substation secondary maintenance safety measure automatic generation method described in claim 1, its feature exists
In maintenance interval judges to include the judgement of 500kV switch gaps, the judgement of 500kV line segregations, 500kV main transformers in the step S2
Interval judges, 500kV buses interval judges, 220kV line segregations judge, 220kV main transformers interval judges and 220kV buses interval
Judge.
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| CN111143630B (en) * | 2019-11-26 | 2022-09-09 | 南京国电南自电网自动化有限公司 | Intelligent substation overhaul safety measure execution state checking method and device |
| CN112039211A (en) * | 2020-09-07 | 2020-12-04 | 国网四川省电力公司电力科学研究院 | Optimization method for reliability and complexity of secondary safety measure of intelligent substation |
| CN112039211B (en) * | 2020-09-07 | 2022-03-01 | 国网四川省电力公司电力科学研究院 | Optimization method for reliability and complexity of secondary safety measure of intelligent substation |
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