CN110619396A - Intelligent substation one-key type secondary safety measure generation method - Google Patents
Intelligent substation one-key type secondary safety measure generation method Download PDFInfo
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Abstract
The invention relates to a one-key secondary safety measure generation method for an intelligent substation. Determining 'accompany equipment' and 'associated running equipment' related to 'maintenance equipment' according to the SCD virtual terminal connection line; generating a safety measure link table according to the virtual terminal connection relation among the devices; determining the content of safety measures to be executed according to the safety measure link table; and determining the operation sequence of the safety measures according to the safety measure content and the sequence rule to generate a secondary safety measure ticket. According to the method, the equipment types are divided according to the equipment association relation, the safety measure linked list is formulated, the safety measure content is formulated according to the secondary safety measure rule, the secondary safety measure billing work is carried out according to the safety measure operation sequence, and the compiling efficiency and the accuracy of the secondary safety measures of the intelligent substation are improved.
Description
Technical Field
The invention belongs to the technical field of safety measures of intelligent substations, and particularly relates to a one-key secondary safety measure generation method for an intelligent substation.
Background
The secondary safety measures are used as technical guarantees for operating field work of overhauling, defect elimination, reconstruction, extension and the like of the transformer substation, and have important significance for guaranteeing the safety of field personnel and equipment of the transformer substation and the stable operation of a power grid.
The secondary safety isolation measure of the intelligent substation is mainly an isolation measure aiming at a link of a process layer between maintenance equipment and operation equipment. The secondary safety isolation measures comprise a GOOSE soft pressing plate, an SV receiving soft pressing plate, a functional pressing plate, an outlet hard pressing plate, an overhaul hard pressing plate, an optical fiber and the like.
The pressing plates and the loops are main safety isolation objects in secondary safety measures of the transformer substation, the intelligent transformer substation uses the optical fiber Ethernet to replace a conventional transformer substation physical cable, and the IEC61850 information modeling and GOOSE/SV message-based publishing and subscribing mechanism is adopted to replace the conventional transformer substation terminal hard connection relationship, so that the hard pressing plates and the secondary cable loops physically exist in the conventional transformer substation, the hard pressing plates and the secondary cable loops are expressed as virtual soft pressing plates and virtual terminal loops on the network in the intelligent transformer substation, and meanwhile, a merging unit, an intelligent terminal and a large number of switches are added in a secondary system of the intelligent transformer substation. Fundamental changes of the secondary circuit form of the intelligent substation and the improvement of the complexity of a secondary system bring great difficulties and challenges to working personnel engaged in the establishment and execution of secondary safety measures of the intelligent substation.
In order to standardize the field operation of the relay protection and the safety automatic device of the intelligent substation, national power grid companies heighten the standardization and standardization level of the safety measures in the field calibration, defect processing and reconstruction operation of the relay protection and the safety automatic device of the intelligent substation, ensure the personnel safety, the power grid safety and the equipment safety, not only establish the standardized design specifications aiming at various secondary equipment, but also specially establish the safety measure specification of the secondary overhaul, namely the safety measure specification of the field work of the relay protection and the safety automatic device of the intelligent substation, and further issue the safety measure guidance suggestions (trial implementation) of the field overhaul of the relay protection and the safety automatic device of the intelligent substation in 2015 in 9-17 days.
Although the national power grid company carries out a lot of normative work aiming at secondary overhaul safety measures, the establishment principle or typical secondary safety measures in the specifications are general and abstract terms, the work of establishing the secondary overhaul safety measures on site still lacks technical support, the work of examining and repairing safety measures and invoicing basically stays in a manual invoicing mode depending on experience and referring to related design drawings according to an examination scene, the working efficiency is low, and errors are easy to occur to cause potential safety hazards and accidents.
The intelligent station secondary safety measure generation method capable of effectively improving the compiling efficiency is found, the accuracy of the intelligent station secondary safety measure and the compiling efficiency are guaranteed, and the intelligent station secondary safety measure generation method becomes a work which needs urgent research and practice.
Disclosure of Invention
The invention aims to solve the problems of low compiling efficiency and easiness in misoperation caused by the lack of technical support of secondary safety measures of an intelligent station, and provides a one-key secondary safety measure generation method for an intelligent substation.
In order to achieve the purpose, the technical scheme of the invention is as follows: a one-key secondary safety measure generation method for an intelligent substation comprises the following steps:
step S1, determining 'accompanying equipment' and 'associated running equipment' related to 'maintenance equipment' according to the SCD virtual terminal connection line;
step S2, generating a safety measure link table according to the virtual terminal connection relation among the three types of equipment, namely 'maintenance equipment', 'accompanying equipment' and 'associated operation equipment';
step S3, determining the safety measure content to be executed according to the safety measure link table;
and step S4, determining the operation sequence of the safety measures according to the safety measure content and the sequence rule, and generating a secondary safety measure ticket.
In an embodiment of the present invention, in step S1, the "accompanying equipment" is an operating equipment that needs to be matched with a shutdown protection device in the secondary safety isolation measure according to the connection relationship between the SCD virtual terminals, and the "associated operating equipment" is an operating equipment that is associated with the "maintenance equipment" according to the connection relationship between the SCD virtual terminals.
In an embodiment of the present invention, in the step S2, the safety measure link table is divided into two parts, i.e., a GOOSE link and an SV link.
In an embodiment of the present invention, in the step S3, the safety measure content is formulated according to the following safety measure rules:
the security measure rules for GOOSE links include the following measures,
1) GOOSE link arrangement 1: the GOOSE link sent during maintenance of the protection device needs to exit from a sending pressing plate of a sending end and a receiving pressing plate of a receiving end on the link, and a functional soft pressing plate of the protection device also belongs to the sending pressing plate;
2) GOOSE link safety 2: when the intelligent terminal is overhauled, the GOOSE link sent needs to protect the bus receiving the link to force the position of the disconnecting link to be in the current running state; when the primary equipment runs, the intelligent terminal is withdrawn from the trip outlet hard pressing plate, the closing outlet hard pressing plate, the reclosing outlet hard pressing plate and the remote control opening and closing outlet hard pressing plates of all the switches;
3) GOOSE link arrangement 3: the GOOSE link received by the overhaul device is only processed for the following cases: the intelligent terminal overhauls when primary equipment runs, and running equipment associated with the intelligent terminal quits all GOOSE sending press plates of the interval protection device;
the security measure rules for SV links include the following measures,
1) SV link safety measure 1: the equipment is operated at intervals, if the interval merging unit is overhauled, an associated operation device of the SV link sent by the interval merging unit needs to be operated to be taken as an accompanying equipment;
2) SV link safety measure 2: stopping the equipment at an interval, and if the interval merging unit is overhauled, receiving a receiving pressing plate of an SV link which is sent by the interval merging unit and needs to exit the SV link by an associated operation device;
3) SV link safety measure 3: when the bus merging unit is overhauled, if the associated operation device of the SV link of the bus merging unit is in double configuration, the protection device is used as an accompanying stopping device, and a single set of the SV link without differential protection is used as an accompanying stopping device; the 500kV voltage class bus merging unit does not need processing.
In an embodiment of the present invention, in the step S3, if the devices in the security measure are the "accompanied device" and the "associated running device", the process is performed according to the "accompanied device", and the process is performed according to the "accompanied device" and the "maintenance device", respectively.
In one embodiment of the present invention, in the step S4, the security measures are performed according to the following operation sequence,
the first step is as follows: operation of "associated running device":
SV link safety measure 2: the SV of the exit association operation protection device receives the pressing plate;
GOOSE link arrangement 3: when primary equipment runs, the intelligent terminal overhauls, and running protection equipment associated with the intelligent terminal exits all GOOOSE sending press plates of the interval protection device;
GOOSE link arrangement 1: exiting the GOOSE receiving pressing plate of the associated operation equipment;
GOOSE link safety 2: forcing the position of a bus protection knife switch;
the second step is that: operation of the "chaperone device":
SV link safety measure 1: the 'accompanying stopping equipment' needs to quit operation, firstly quits all GOOSE sending pressing plates for protection, and secondly quits a 'function pressing plate' for protection;
the third step: operation of the "service equipment":
the hard pressing plate at the outlet of the intelligent terminal is withdrawn from maintenance, and the intelligent terminal is maintained when the equipment runs at intervals for one time;
GOOSE link arrangement 1: withdrawing the GOOSE sending pressing plate of the maintenance equipment;
when the line protection device is overhauled, the main protection function pressing plate of the protection device needs to be withdrawn;
the fourth step: putting all maintenance equipment into maintenance pressing plates;
the fifth step: the optical fiber of the "service equipment" to "associated operating equipment" security measure link is disconnected.
Compared with the prior art, the invention has the following beneficial effects: according to the method, the equipment types are divided according to the equipment association relation, the safety measure linked list is formulated, the safety measure content is formulated according to the secondary safety measure rule, and the secondary safety measure billing work is carried out according to the safety measure operation sequence.
Drawings
FIG. 1 is a schematic diagram of a typical interval GOOSE and SV link of an intelligent substation;
FIG. 2 is a schematic flow chart of a one-button secondary security measure generation method of the intelligent substation;
fig. 3 is a flow chart of the operation sequence of the secondary safety measures of the intelligent substation.
Detailed Description
The technical scheme of the invention is specifically explained below with reference to the accompanying drawings.
The invention provides a one-key secondary safety measure generation method for an intelligent substation, which comprises the following steps:
step S1, determining 'accompanying equipment' and 'associated running equipment' related to 'maintenance equipment' according to the SCD virtual terminal connection line; the 'accompanying stopping equipment' is the running equipment which is required to be matched with the stopping protection device in the secondary safety isolation measure according to the connection relation between the SCD virtual terminals, and the 'associated running equipment' is the running equipment which is associated with the 'overhauling equipment' according to the connection relation between the SCD virtual terminals;
step S2, generating a safety measure link table according to the virtual terminal connection relation among the three types of equipment, namely 'maintenance equipment', 'accompanying equipment' and 'associated operation equipment'; the safety measure link table is divided into a GOOSE link and an SV link;
step S3, determining the safety measure content to be executed according to the safety measure link table; if the equipment in the safety measure is the 'accompany-stop equipment' and the 'associated operation equipment', processing according to the 'accompany-stop equipment', and simultaneously processing according to the 'accompany-stop equipment' and the 'overhaul equipment';
and step S4, determining the operation sequence of the safety measures according to the safety measure content and the sequence rule, and generating a secondary safety measure ticket.
In step S3, the security measure content is formulated according to the following security measure rules:
the security measure rules for GOOSE links include the following measures,
1) GOOSE link arrangement 1: the GOOSE link sent during maintenance of the protection device needs to exit from a sending pressing plate of a sending end and a receiving pressing plate of a receiving end on the link, and a functional soft pressing plate of the protection device also belongs to the sending pressing plate;
2) GOOSE link safety 2: when the intelligent terminal is overhauled, the GOOSE link sent needs to protect the bus receiving the link to force the position of the disconnecting link to be in the current running state; when the primary equipment runs, the intelligent terminal is withdrawn from the trip outlet hard pressing plate, the closing outlet hard pressing plate, the reclosing outlet hard pressing plate and the remote control opening and closing outlet hard pressing plates of all the switches;
3) GOOSE link arrangement 3: the GOOSE link received by the overhaul device is only processed for the following cases: the intelligent terminal overhauls when primary equipment runs, and running equipment associated with the intelligent terminal quits all GOOSE sending press plates of the interval protection device;
the security measure rules for SV links include the following measures,
1) SV link safety measure 1: the equipment is operated at intervals, if the interval merging unit is overhauled, an associated operation device of the SV link sent by the interval merging unit needs to be operated to be taken as an accompanying equipment;
2) SV link safety measure 2: stopping the equipment at an interval, and if the interval merging unit is overhauled, receiving a receiving pressing plate of an SV link which is sent by the interval merging unit and needs to exit the SV link by an associated operation device;
3) SV link safety measure 3: when the bus merging unit is overhauled, if the associated operation device of the SV link of the bus merging unit is in double configuration, the protection device is used as an accompanying stopping device, and a single set of the SV link without differential protection is used as an accompanying stopping device; the 500kV voltage class bus merging unit does not need processing.
In said step S4, the security measures are performed in the following operation sequence,
the first step is as follows: operation of "associated running device":
SV link safety measure 2: the SV of the exit association operation protection device receives the pressing plate;
GOOSE link arrangement 3: when primary equipment runs, the intelligent terminal overhauls, and running protection equipment associated with the intelligent terminal exits all GOOOSE sending press plates of the interval protection device;
GOOSE link arrangement 1: exiting the GOOSE receiving pressing plate of the associated operation equipment;
GOOSE link safety 2: forcing the position of a bus protection knife switch;
the second step is that: operation of the "chaperone device":
SV link safety measure 1: the 'accompanying stopping equipment' needs to quit operation, firstly quits all GOOSE sending pressing plates for protection, and secondly quits a 'function pressing plate' for protection;
the third step: operation of the "service equipment":
the hard pressing plate at the outlet of the intelligent terminal is withdrawn from maintenance, and the intelligent terminal is maintained when the equipment runs at intervals for one time;
GOOSE link arrangement 1: withdrawing the GOOSE sending pressing plate of the maintenance equipment;
when the line protection device is overhauled, the main protection function pressing plate of the protection device needs to be withdrawn;
the fourth step: putting all maintenance equipment into maintenance pressing plates;
the fifth step: the optical fiber of the "service equipment" to "associated operating equipment" security measure link is disconnected.
The following is a specific example of the present invention.
Fig. 1 is a GOOSE and SV link diagram of a typical line interval of an intelligent substation, which includes a line protection device, an intelligent terminal, a merging unit and a bus protection device. Taking fig. 1 as an example, according to the flow of the one-click secondary security measure generation method in fig. 2, the implementation steps are as follows:
(1) the maintenance of the protection device is carried out,
step 1, hanging a maintenance board on a protection device;
and 2, according to the SCD virtual terminal contact, determining a protection device ' associated operation equipment ' and ' accompanying equipment ' according to the GOOSE and SV subscription relation of the SCD file, wherein the associated operation equipment ' is a merging unit, an intelligent terminal and bus protection and has no ' accompanying equipment '.
And 3, generating a safety measure link table according to the connection relation between the protection device and the associated merging unit, the intelligent terminal and the bus protection virtual terminal, wherein the safety measure link table comprises a link (c).
Step 4, determining safety measure contents to be executed according to each link of the safety measure link table, and according to the fifth GOOSE link in the safety measure link table, referring to the safety measure 1 rule of the GOOSE link, making safety measure contents that a sending pressure plate of a withdrawing protection device, such as a 'protection tripping soft pressure plate', 'failure starting soft pressure plate', 'reclosing soft pressure plate', 'three-phase inconsistent soft pressure plate', 'permanent tripping soft pressure plate' and the like, sends soft pressure plates, such as a 'differential protection', 'distance protection', 'zero sequence overcurrent', 'shutdown reclosing', and the like, and a bus protection withdraws from the 'soft pressure plate' of the line interval branch.
Step 5, according to the safety measure content, determining the operation sequence of the safety measure according to the operation sequence rule of fig. 3, and forming the following safety measure ticket:
1. exiting the bus protection 'starting failure soft pressing plate', and exiting the sending and function soft pressing plate of the protection device determined in the step 4;
2. the protection device overhauls the hard pressing plate;
3. and disconnecting the physical optical fibers of the protection device, the merging unit, the intelligent terminal and the bus protection equipment.
(2) The intelligent terminal is maintained and repaired,
step 1, hanging a maintenance board on an intelligent terminal;
and 2, determining that the intelligent terminal 'associated operation equipment' is a protection device, a merging unit and bus protection according to SCD virtual terminal contact, and having no 'accompanying equipment'.
And 3, generating a safety measure link table according to the connection relation of the protection device, the merging unit and the bus protection virtual terminal associated with the intelligent terminal, wherein the safety measure link table comprises a link (i) and a link (iii).
And 4, determining safety measure contents to be executed according to each link in the safety measure link table, and establishing safety measure contents by referring to a safety measure 2 rule of the GOOSE link according to the first GOOSE link in the safety measure link table, wherein the interval knife switch position of the bus protection line is forced to be the current running state, and if the primary equipment runs, the intelligent terminal ' trip outlet hard pressing plate ', ' closing outlet hard pressing plate ', ' reclosing outlet hard pressing plate ' and ' remote control opening outlet hard pressing plates of each switch are required to be quitted. Referring to the GOOSE link safety measure 3 rule, if primary equipment runs, the safety measure content is set to withdraw the bus protection from tripping the outlet soft pressing plate at the interval, and withdraw all GOOSE sending pressing plates of the interval protection device, such as a protection tripping soft pressing plate, a reclosing soft pressing plate, a three-phase inconsistent soft pressing plate, a permanent tripping soft pressing plate and the like.
Step 5, according to the safety measure content, determining the operation sequence of the safety measure according to the operation sequence rule of fig. 3, and forming the following safety measure ticket:
1. withdrawing the soft pressing plate of each associated operation equipment according to the safety content of the GOOSE safety rule 3 and the OGOSE safety rule 2 formulated in the step 4, and forcing the position of the interval knife switch of the bus protection line to be in the current operation state;
2. withdrawing the hard pressing plate at the outlet of the intelligent terminal;
3. putting the intelligent terminal into maintenance of the hard pressing plate;
4. the physical fiber protected by the protection device and the bus is disconnected.
(3) Considering the maintenance of the merging unit,
step 1, hanging a maintenance board on the merging unit;
and 2, determining that the merging unit 'associated operation equipment' is a protection device and bus protection and 'accompanying equipment' is temporarily absent according to SCD virtual terminal contact.
And 3, generating a safety measure link table according to the connection relation between the protection device associated with the merging unit and the bus protection virtual terminal, wherein the safety measure link table comprises links (sixty-seven).
And 4, determining the content of the safety measure to be executed according to each link of a safety measure link table, wherein the safety measure link table comprises SV links (sixth) and (seventh). When equipment operates at intervals, referring to SV link safety measure rule 1, receiving in the 'associated operating equipment' needs to quit operation and is used as 'accompanying equipment', and the protection device and the bus protection are simultaneously the 'associated operating equipment' and the 'accompanying equipment', and are processed according to the 'accompanying equipment'. And when the equipment stops operation at intervals, referring to SV link safety rule 2, an SV receiving pressing plate of the protection device is withdrawn, and an SV receiving pressing plate of the branch is protected by the bus.
Step 5, according to the safety measure content, determining the operation sequence of the safety measure according to the operation sequence rule of fig. 3, and forming the following safety measure ticket:
1. according to the safety content of the SV safety rule 1 and the SV safety rule 2 formulated in the step 4, when equipment runs at intervals, the protection device and the bus protection are determined as 'accompanying equipment', and all GOOSE (generic object oriented substation event) are required to be quitted to send the soft pressing plates and the functional soft pressing plates. When the interval primary equipment stops running, the SV of the interval branch is protected by the SV receiving soft pressing plate and the bus which is withdrawn from the protection device
2. Putting the merging unit into the inspection and repair of the hard pressing plate;
3. the physical fiber protected by the protection device and the bus is disconnected.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (6)
1. A one-key secondary safety measure generation method for an intelligent substation is characterized by comprising the following steps:
step S1, determining 'accompanying equipment' and 'associated running equipment' related to 'maintenance equipment' according to the SCD virtual terminal connection line;
step S2, generating a safety measure link table according to the virtual terminal connection relation among the three types of equipment, namely 'maintenance equipment', 'accompanying equipment' and 'associated operation equipment';
step S3, determining the safety measure content to be executed according to the safety measure link table;
and step S4, determining the operation sequence of the safety measures according to the safety measure content and the sequence rule, and generating a secondary safety measure ticket.
2. The intelligent substation one-touch secondary safety measure generation method according to claim 1, wherein in step S1, "stop-and-go equipment" is operating equipment associated with "maintenance equipment" according to a connection relationship between the SCD virtual terminals and a protection device that needs to be stopped in the secondary safety isolation measure, and "associated operating equipment" is operating equipment associated with "maintenance equipment" according to a connection relationship between the SCD virtual terminals.
3. The intelligent substation one-touch secondary safety measure generation method according to claim 1, wherein in step S2, the safety measure link table is divided into two parts, i.e., a GOOSE link and an SV link.
4. The intelligent substation one-click secondary safety measure generation method according to claim 3,
in step S3, the security measure content is formulated according to the following security measure rules:
the security measure rules for GOOSE links include the following measures,
1) GOOSE link arrangement 1: the GOOSE link sent during maintenance of the protection device needs to exit from a sending pressing plate of a sending end and a receiving pressing plate of a receiving end on the link, and a functional soft pressing plate of the protection device also belongs to the sending pressing plate;
2) GOOSE link safety 2: when the intelligent terminal is overhauled, the GOOSE link sent needs to protect the bus receiving the link to force the position of the disconnecting link to be in the current running state; when the primary equipment runs, the intelligent terminal is withdrawn from the trip outlet hard pressing plate, the closing outlet hard pressing plate, the reclosing outlet hard pressing plate and the remote control opening and closing outlet hard pressing plates of all the switches;
3) GOOSE link arrangement 3: the GOOSE link received by the overhaul device is only processed for the following cases: the intelligent terminal overhauls when primary equipment runs, and running equipment associated with the intelligent terminal quits all GOOSE sending press plates of the interval protection device;
the security measure rules for SV links include the following measures,
1) SV link safety measure 1: the equipment is operated at intervals, if the interval merging unit is overhauled, an associated operation device of the SV link sent by the interval merging unit needs to be operated to be taken as an accompanying equipment;
2) SV link safety measure 2: stopping the equipment at an interval, and if the interval merging unit is overhauled, receiving a receiving pressing plate of an SV link which is sent by the interval merging unit and needs to exit the SV link by an associated operation device;
3) SV link safety measure 3: when the bus merging unit is overhauled, if the associated operation device of the SV link of the bus merging unit is in double configuration, the protection device is used as an accompanying stopping device, and a single set of the SV link without differential protection is used as an accompanying stopping device; the 500kV voltage class bus merging unit does not need processing.
5. The intelligent substation one-button secondary safety measure generation method according to claim 4, wherein in step S3, if the equipment in the safety measure is the "accompanying equipment" and the "associated operation equipment", the processing is performed according to the "accompanying equipment", and the processing is performed according to the "accompanying equipment" and the "maintenance equipment", respectively.
6. The intelligent substation one-touch secondary safety measure generation method according to claim 5, wherein in the step S4, the safety measures are executed according to the following operation sequence,
the first step is as follows: operation of "associated running device":
SV link safety measure 2: the SV of the exit association operation protection device receives the pressing plate;
GOOSE link arrangement 3: when primary equipment runs, the intelligent terminal overhauls, and running protection equipment associated with the intelligent terminal exits all GOOOSE sending press plates of the interval protection device;
GOOSE link arrangement 1: exiting the GOOSE receiving pressing plate of the associated operation equipment;
GOOSE link safety 2: forcing the position of a bus protection knife switch;
the second step is that: operation of the "chaperone device":
SV link safety measure 1: the 'accompanying stopping equipment' needs to quit operation, firstly quits all GOOSE sending pressing plates for protection, and secondly quits a 'function pressing plate' for protection;
the third step: operation of the "service equipment":
the hard pressing plate at the outlet of the intelligent terminal is withdrawn from maintenance, and the intelligent terminal is maintained when the equipment runs at intervals for one time;
GOOSE link arrangement 1: withdrawing the GOOSE sending pressing plate of the maintenance equipment;
when the line protection device is overhauled, the main protection function pressing plate of the protection device needs to be withdrawn;
the fourth step: putting all maintenance equipment into maintenance pressing plates;
the fifth step: the optical fiber of the "service equipment" to "associated operating equipment" security measure link is disconnected.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN112182303A (en) * | 2020-09-01 | 2021-01-05 | 南京国电南自电网自动化有限公司 | Transformer substation safety measure ticket one-key generation method based on maintenance safety measure general rule base |
| CN115460042A (en) * | 2022-09-30 | 2022-12-09 | 国家电网有限公司 | Intelligent substation protection test method based on test special network |
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| CN115460042A (en) * | 2022-09-30 | 2022-12-09 | 国家电网有限公司 | Intelligent substation protection test method based on test special network |
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