CN112701609B - High-voltage line power failure maintenance method, system and related device - Google Patents
High-voltage line power failure maintenance method, system and related device Download PDFInfo
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- CN112701609B CN112701609B CN202011531521.1A CN202011531521A CN112701609B CN 112701609 B CN112701609 B CN 112701609B CN 202011531521 A CN202011531521 A CN 202011531521A CN 112701609 B CN112701609 B CN 112701609B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
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Abstract
The application discloses a high-voltage line power failure maintenance method, a system and a related device, wherein the method comprises the following steps: selecting a nearest temporary debugging line according to a target line to be overhauled, wherein the temporary debugging line comprises a temporary debugging transformer substation, and the temporary debugging transformer substation comprises a protection device II; adding a newly-added line protection device into the transformer substation to be modified according to the second protection device, and performing protection modification to obtain a modified transformer substation, wherein the newly-added line protection device is consistent with the second protection device; selecting a jump point outside a to-be-overhauled area of a target to-be-overhauled line, and constructing a temporary jump connection line with the temporary debugging line at the jump point; and after the power failure overhauling is finished, removing the temporary jumper wire circuit, and recovering the jumper wire of the protection circuit of the target circuit to be overhauled. The problem that the power failure overhaul work of a heavy-duty power transmission line is limited under the condition that the existing power grid mode is limited is solved; the technical problems of poor flexibility and low stability of the power grid maintenance mode arrangement.
Description
Technical Field
The application relates to the technical field of high-voltage line maintenance, in particular to a high-voltage line power failure maintenance method, a system and a related device.
Background
The existing high-voltage power supply lines with the voltage class of 220kV and above are protected by adopting a relay protection device. The lines are used for carrying electric energy transmission (generally more than 10 kilovolt-amperes) of urban residents and basic industrial electricity to different degrees. If the high-voltage power supply circuit needs to be subjected to power failure maintenance, a low-peak period of power consumption load is generally selected, and the residual power consumption is transferred to other circuits in the same power supply range; if all the transfer is impossible and the maintenance work is urgent, the user must be restricted from consuming electricity.
In recent years, the increase of the electric loads in areas and cities has severely hampered the construction of new lines. The power failure maintenance arrangement of the high-voltage power supply circuit with the voltage class of 220kV and above is always a difficult problem of the regional and urban main power supply network, the power transmission network in the adjacent region is incomplete, the power supply load cannot be effectively transferred, the maintenance cannot be effectively arranged in the low-temperature period of the load such as winter, and huge pressure is brought to the normal operation of the circuit.
Disclosure of Invention
The application provides a high-voltage line power failure maintenance method, a system and a related device, which are used for solving the problem that the power failure maintenance work of a heavy-duty power transmission line is limited under the condition that the existing power grid mode is limited; the technical problems of poor flexibility and low stability of the power grid maintenance mode arrangement.
In view of the foregoing, a first aspect of the present application provides a method for repairing a high-voltage line in a power outage, including:
selecting a nearest temporary debugging line according to a target line to be overhauled, wherein the target line to be overhauled comprises a transformer substation to be rebuilt, the temporary debugging line comprises a temporary debugging transformer substation, the transformer substation to be rebuilt comprises a first protection device, and the temporary debugging transformer substation comprises a second protection device;
adding a new line protection device into the transformer substation to be modified according to the second protection device, and performing protection modification to obtain a modified transformer substation, wherein the new line protection device is consistent with the second protection device;
selecting a jump point outside a to-be-overhauled area of the target to-be-overhauled line, constructing a temporary jump line with the temporary debugging line at the jump point, and realizing optical fiber differential protection by adopting the newly-added line protection device by the temporary jump line;
and after the power failure overhauling is finished, the temporary jumper connection line is removed, and the jumper of the protection line of the target line to be overhauled is recovered.
Preferably, the protection modification comprises: and (3) modifying the electric energy metering device and deploying and modifying secondary equipment.
Preferably, the selecting a jump point outside the to-be-overhauled area of the target to-be-overhauled line further includes:
and carrying out power failure treatment on the to-be-overhauled area of the target to-be-overhauled line and the corresponding secondary equipment.
Preferably, the transformer substation to be modified comprises a heavy-load transformer substation and a light-load transformer substation;
correspondingly, the temporary debugging transformer substation comprises a heavy-load transformer substation and a light-load transformer substation.
Preferably, the first protection device and the second protection device each comprise a two-way multiplexing optical fiber channel.
A second aspect of the present application provides a high voltage line power outage maintenance system comprising:
the device comprises a selecting module, a first debugging module and a second debugging module, wherein the selecting module is used for selecting a nearest temporary debugging line according to a target line to be overhauled, the target line to be overhauled comprises a transformer substation to be rebuilt, the temporary debugging line comprises a temporary debugging transformer substation, the transformer substation to be rebuilt comprises a first protection device, and the temporary debugging transformer substation comprises a second protection device;
the transformation module is used for adding a new line protection device into the transformer substation to be transformed according to the second protection device to perform protection transformation to obtain a transformed transformer substation, wherein the new line protection device is consistent with the second protection device;
the jumper connection module is used for selecting a jumper point outside a to-be-overhauled area of the target to-be-overhauled line, constructing a temporary jumper line with the temporary debugging line at the jumper point, and realizing optical fiber differential protection by adopting the newly-added line protection device;
and the recovery module is used for removing the temporary jumper connection line after the power failure maintenance is completed, and recovering the jumper of the protection line of the target line to be maintained.
Preferably, the protection modification comprises: and (3) modifying the electric energy metering device and deploying and modifying secondary equipment.
Preferably, the method further comprises:
and the power failure module is used for carrying out power failure treatment on the to-be-overhauled area of the target to-be-overhauled line and the corresponding secondary equipment.
A third aspect of the present application provides a high voltage line outage maintenance apparatus, the apparatus comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the high-voltage line power outage maintenance method according to the first aspect according to instructions in the program code.
A fourth aspect of the present application provides a computer readable storage medium storing program code for performing the high voltage line outage maintenance method of the first aspect.
From the above technical solutions, the embodiment of the present application has the following advantages:
the application provides a high-voltage line power failure maintenance method, which comprises the following steps: selecting a nearest temporary debugging line according to a target line to be overhauled, wherein the target line to be overhauled comprises a transformer substation to be rebuilt, the temporary debugging line comprises a temporary debugging transformer substation, the transformer substation to be rebuilt comprises a first protection device, and the temporary debugging transformer substation comprises a second protection device; adding a newly-added line protection device into the transformer substation to be modified according to the second protection device, and performing protection modification to obtain a modified transformer substation, wherein the newly-added line protection device is consistent with the second protection device; selecting a jump point outside a to-be-overhauled area of a target to-be-overhauled line, constructing a temporary jump line with a temporary debugging line at the jump point, and realizing optical fiber differential protection by adopting a newly-added line protection device for the temporary jump line; and after the power failure overhauling is finished, removing the temporary jumper wire circuit, and recovering the jumper wire of the protection circuit of the target circuit to be overhauled.
The high-voltage line power failure maintenance method provided by the application effectively utilizes the multiple circuits of the same tower and adjacent substations to realize temporary jumper connection, so that the jumped line still operates according to a normal state, sufficient maintenance time is provided for operators, the power failure maintenance period is not influenced by the maintenance period, and only the time of power failure of the line of the target line to be maintained and the temporary debugging substation is influenced when the line is switched. The protection transformation is applied to power supply overhaul, so that the technical problem that the power supply load cannot be completely transferred to other circuits in the prior art is solved; once the temporary jumper circuit is built, the temporary jumper circuit has stronger stability; after the overhaul is finished, the jumper wire circuit is removed, and the original state of the jumper wire is restored; the number of the related jump points is small, the implementation is easy, the flexibility is high, the requirements on actual circuit conditions and temporary debugging substations are low, and the practicability is high. Therefore, the application solves the problem that the existing power grid transmission line has limited power failure maintenance work; the technical problems of poor flexibility and low stability of the power grid maintenance mode arrangement.
Drawings
FIG. 1 is a schematic flow chart of a method for maintaining a high-voltage line in a power outage according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a high-voltage line power failure maintenance system according to an embodiment of the present application;
fig. 3 is a schematic diagram of power supply line deployment and transformation provided in an embodiment of the present application;
fig. 4 is a schematic diagram of an effect of a power supply line after deployment and transformation according to an embodiment of the present application.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
For easy understanding, referring to fig. 1, an embodiment one of a high-voltage line power outage maintenance method provided by the present application includes:
step 101, selecting a nearest temporary debugging line according to a target line to be overhauled, wherein the target line to be overhauled comprises a transformer substation to be rebuilt, the temporary debugging line comprises a temporary debugging transformer substation, the transformer substation to be rebuilt comprises a first protection device, and the temporary debugging transformer substation comprises a second protection device.
It can be appreciated that the substations to be retrofitted include heavy load substations and light load substations; correspondingly, the temporary debugging transformer substation comprises a heavy-load transformer substation and a light-load transformer substation. However, the maintenance difficulty is the greatest, the heavy-duty line is the most common problem of load transfer, and the situation is more common in the actual operation process.
It should be noted that, the transformer substation to be modified on the target line to be overhauled may be a heavy-load transformer substation or a light-load transformer substation, in general, when the transformer substation to be modified is a heavy-load transformer substation, the heavy-load transformer substation has two loops of 220kv high-voltage transmission lines in an operating state, corresponding protection devices are paired with each other according to colors for a while, and the heavy-load transformer substation has a relatively heavy power load, so that the high-voltage line cannot be overhauled in a power failure, and the power supply is introduced into the temporary debugging line to provide overhauling time for the heavy-load circuit. The temporary commissioning substation may also be a heavy load substation or a light load substation. The first and second protection devices each comprise a main protection device and a main protection device, that is, the protection devices are in the form of a set.
And 102, adding a newly-added line protection device into the transformer substation to be modified according to the second protection device, and performing protection modification to obtain the modified transformer substation, wherein the newly-added line protection device is consistent with the second protection device.
Further, the protection modification includes: and (3) modifying the electric energy metering device and deploying and modifying secondary equipment.
It should be noted that, in the existing same-tower multi-loop, some adjacent transformer substation lines exist in some target lines to be overhauled, but because the power transmission network of the adjacent area is incomplete, the power supply load of the lines to be overhauled cannot be effectively transferred to other lines in the same power supply range, so that the actual efficiency is poor. The power supply load of the line to be overhauled is transferred to other lines, and the line is not directly connected and transferred, so that analysis and relay protection transformation are required to be carried out on two different power transmission loops, and the transfer of the power supply load can be stably realized only if the line protection devices of the transformer substations in the two loops are in a consistent state. The newly-added line protection device added in the target line to be overhauled is consistent with the second protection device, namely, the model of the newly-added line protection device is consistent with that of the protection device of the temporary debugging transformer substation, and the complete transfer of the power supply load is ensured. The protection device is not required to be dismantled, and can be reserved and idle.
The protection transformation is a technology in the upgrading process of system equipment and is also relay protection transformation, but in the embodiment, the protection transformation is introduced into the maintenance of a power supply line according to the requirement of power supply load transfer, the transformation of a transformer substation in the embodiment only relates to the transformation of a transformer substation to be transformed on a line to be overhauled, the other transformer substation only performs debugging cooperation, and in the actual process, in order to facilitate the model of a protection device of two loops together, the temporary debugging transformer substation can be transformed while the transformer substation to be transformed. The modification of the protection device comprises the arrangement of some devices, for example, each loop of the transformer line of the electric energy metering device is provided with one main meter and one auxiliary meter, and an electronic multifunctional electric energy meter is adopted; the requirements for the electric energy metering device are as follows: 1) CT accuracy level 0.2S level; 2) PT accuracy level 0.2 level; 3) Accuracy of electric energy meter: 0.2S stage; the electric energy information is uploaded to a main station of a metering automation system of a city and province metering center which requires to be uploaded through an original electric energy collecting device in the station. In addition, the direct current power supply system of the protection device also needs to connect and reform the spare feeder line; the time synchronization system can meet the time synchronization requirement of two sets of protection devices; and finally, the deployment and transformation of secondary equipment are mainly to introduce the protection and current loop of a current transformer of a breaker of high-voltage equipment and other equipment, such as safety and security automatic switching, bus protection, fault wave recording, monitoring measurement and the like, into a related protection device or a metering device by adopting the secondary current loop.
The newly added line protection device is also divided into a main protection device and a secondary protection device, so that different line deployment is required according to different protection devices in the transformation process, and 1) the main protection device and the secondary protection device are connected with a metering voltage switching device of a voltage parallel device (voltage transformer parallel device). 2) The main two protection devices are connected with the electric energy metering device. The main two protection devices are used for protecting the alternating current voltage loop: the second protection voltage switching circuit is connected with the synchronous phase of the hand-operated/remote control measuring circuit and the synchronous phase of the main protection reclosing circuit; the protection device is used for protecting the main protection device in an alternating current voltage loop: the first voltage switching loop is synchronously connected with the main protection reclosing. 3) The position node loop is connected to the position of the breaker disconnecting link through a main protection device; the position node loop is connected to the position of the breaker knife switch through the main two protection devices. 4) The control loop of the circuit breaker of the transformed station is integrally changed to a newly built primary first and secondary protection screens; the device is a 220KV spare power automatic switching device, a 220KV main first protection device, a 220KV main second protection device, a bus first protection device, a bus second protection device and a 220KV measurement and control device. The first group of operating power supplies and the second group of operating power supplies of the circuit breaker are connected with the station direct current power supply; the breaker is connected to the main protection device after the functions of manual breaking, forced closing, synchronous closing, closing and jumping pass through the five-prevention logic loop; the long-jump loop of the 220KV bus protection I is connected to the main protection device, then connected to the main protection device and finally connected to the three-phase trip pressing plate I; the remote tripping loop of the 220KV bus protection II is led to the main protection device II, then is connected to the main protection device II, and finally is connected to the three-phase tripping pressing plate II; the switching-on loop of the first 220 kilovolt spare power automatic switching device and the switching-on loop of the second 220 kilovolt spare power automatic switching device are connected in parallel and connected into a switching-on pressing plate; the tripping circuit of the 220KV spare power automatic switching one is connected into the tripping circuit of the main protection device; the tripping circuit of the 220KV spare power automatic switching device II is connected with the tripping circuit of the main protection device II; the manual tripping locking loop of the 220KV spare power automatic switching one is connected into the locking loop of the operating box of the main protection device; the manual tripping locking loop of the 220KV spare power automatic switching II is connected to the locking loop of the operating box of the main protection device I; the single-phase tripping circuit of the main protection device is divided into three paths which are connected in series into a split-phase tripping pressing plate; the single-phase tripping circuit of the main two protection devices is divided into three paths which are connected in series into the split-phase tripping pressing plate. 5) And respectively connecting the main protection device and the starting loops of breaker failure protection and bus protection of the main protection device and the main protection device into a main protection operation box. 6) Remote signaling and wave recording loop access: the main protection device, the main protection operation box, the main protection device and the main protection voltage switching device are connected with the 220KV line measurement and control device; the main protection device, the main protection operation box and the signal loop of the main protection device and the main protection device are connected to the fault recording and broadcasting device. 7) The main protection device power supply, the first group of switching loop power supplies and the first group of operation loop power supplies are connected to the substation direct current power supply I. 8) The power supply of the primary second protection device, the power supply of the second group of switching loop and the power supply of the second group of operation loop are connected to the direct current power supply II of the transformer substation. 9) And accessing the multiplexing interface device to the primary protection device and the primary protection device corresponding to the communication port loop of the opposite-side substation. Other line deployment modifications involved in the protection modification are not listed one by one, and the protection modification in the upgrading of the existing system equipment can be reasonably operated. After the transformation is completed, related device equipment is used as a permanent asset to be arranged in a transformation substation, and the paved optical cable and the like can be continuously recycled.
Step 103, selecting a jump point outside the to-be-overhauled area of the target to-be-overhauled line, constructing a temporary jump line with the temporary debugging line at the jump point, and realizing optical fiber differential protection by adopting a newly-added line protection device for the temporary jump line.
It should be noted that, referring to fig. 3-4, assuming that the line to be overhauled is a heavy load circuit, the line modification is as shown in fig. 3-4. Compared with the prior art, the idea of selecting a plurality of jump points to bypass an overhaul area and return to an overhaul line is more universal, has low requirements on actual environment, and is particularly shown in the prior art that at least two available jump points need to be found on the line to be overhauled for external connection and connection back; in addition, the appropriate jump points of other lines are found, and the selection of the jump points has certain position requirements, and particularly, under the environment that the overhaul area is large and the overhaul is difficult, the appropriate jump points are difficult to select; the method in this embodiment does not need to connect the power supply load back to the original line, so only one jump point is needed, and whether the two loops are identical and complete is not a necessary condition, and the execution space can be larger, so the applicability is stronger. In the built temporary jumper connection line, a newly-added line protection device is connected with a target line to be overhauled and is matched with a protection device in a temporary debugging transformer substation, so that a power supply load is introduced into a protection loop of the temporary debugging transformer substation; the temporary jumper circuit has better stability, so that the operation personnel can maintain the time sufficiently, and the normal operation of the power supply circuit is not influenced.
Further, selecting a jump point outside the to-be-overhauled area of the target to-be-overhauled line, and before the step of selecting the jump point, further comprises the following steps: and carrying out power failure treatment on the to-be-overhauled area of the target to-be-overhauled line and the corresponding secondary equipment.
It will be appreciated that both the first and second protection devices comprise two-way multiplexed fibre channel.
And 104, after the power failure overhaul is completed, removing the temporary jumper line, and recovering the jumper of the protection line of the target line to be overhauled.
After the overhaul is completed, the original circuit is restored, the temporary jumper connection circuit is removed, the protection circuit of the circuit to be overhauled is switched to the first protection device, and the newly-added circuit protection device can be still reserved and is idle.
The high-voltage line power failure maintenance method provided by the embodiment of the application effectively utilizes the multiple circuits of the same tower and adjacent substations to realize temporary jumper connection, so that the jumped line still operates according to a normal state, sufficient maintenance time is provided for operators, the power failure maintenance period is not influenced by the maintenance period, and only the time of power failure of the line of the target line to be maintained and the temporary debugging substation is influenced when the line is switched. The protection transformation is applied to power supply overhaul, so that the technical problem that the power supply load cannot be completely transferred to other circuits in the prior art is solved; once the temporary jumper circuit is built, the temporary jumper circuit has stronger stability; after the overhaul is finished, the jumper wire circuit is removed, and the original state of the jumper wire is restored; the number of the related jump points is small, the implementation is easy, the flexibility is high, the requirements on actual circuit conditions and temporary debugging substations are low, and the practicability is high. Therefore, the embodiment of the application solves the problem that the existing power grid transmission line has limited power failure maintenance work; the technical problems of poor flexibility and low stability of the power grid maintenance mode arrangement.
For ease of understanding, referring to fig. 2, the present application provides an embodiment of a high voltage line outage maintenance system, comprising:
the selecting module 201 is configured to select a nearest temporary debugging line according to a target line to be overhauled, where the target line to be overhauled includes a transformer substation to be rebuilt, the temporary debugging line includes a temporary debugging transformer substation, the transformer substation to be rebuilt includes a first protection device, and the temporary debugging transformer substation includes a second protection device;
the transformation module 202 is configured to add a new line protection device to the transformer substation to be transformed according to the second protection device, and perform protection transformation to obtain a transformed transformer substation, where the new line protection device is consistent with the second protection device;
the jumper module 203 is configured to select a jumper point outside a to-be-overhauled area of a target line to be overhauled, build a temporary jumper line with the temporary debugging line at the jumper point, and implement optical fiber differential protection by adopting a newly-added line protection device;
and the recovery module 204 is used for removing the temporary jumper wire circuit after the power failure maintenance is completed and recovering the jumper wire of the protection circuit of the target circuit to be maintained.
Further, the protection modification includes: and (3) modifying the electric energy metering device and deploying and modifying secondary equipment.
Further, the method further comprises the following steps:
and the power failure module 205 is used for performing power failure treatment on the to-be-overhauled area of the target to-be-overhauled line and the corresponding secondary equipment.
The application also provides high-voltage line power failure maintenance equipment, which comprises a processor and a memory:
the memory is used for storing the program codes and transmitting the program codes to the processor;
the processor is configured to execute the high-voltage line power outage maintenance method in the method embodiment according to the instructions in the program code.
The application also provides a computer readable storage medium, which is used for storing program codes, and the program codes are used for executing the high-voltage line power failure maintenance method in the embodiment of the method.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for executing all or part of the steps of the method according to the embodiments of the present application by means of a computer device (which may be a personal computer, a server, or a network device, etc.). And the aforementioned storage medium includes: u disk, mobile hard disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (5)
1. A high voltage line power outage maintenance method, comprising:
selecting a nearest temporary debugging line according to a target line to be overhauled, wherein the target line to be overhauled comprises a transformer substation to be rebuilt, the temporary debugging line comprises a temporary debugging transformer substation, the transformer substation to be rebuilt comprises a first protection device, the temporary debugging transformer substation comprises a second protection device, and the first protection device and the second protection device comprise two-way multiplexing optical fiber channels;
according to the second protection device, a newly-added line protection device is added in the transformer substation to be modified, protection modification is carried out, the transformer substation after modification is obtained, the newly-added line protection device is consistent with the second protection device, and the protection modification comprises: electric energy metering device transformation and secondary equipment deployment transformation;
carrying out power failure treatment on the to-be-overhauled area of the target to-be-overhauled line and the corresponding secondary equipment;
selecting a jump point outside a to-be-overhauled area of the target to-be-overhauled line, constructing a temporary jump line with the temporary debugging line at the jump point, and realizing optical fiber differential protection by adopting the newly-added line protection device by the temporary jump line;
and after the power failure overhauling is finished, the temporary jumper connection line is removed, and the jumper of the protection line of the target line to be overhauled is recovered.
2. The high-voltage line outage maintenance method according to claim 1, wherein the transformer substation to be rebuilt comprises a heavy-load transformer substation and a light-load transformer substation;
correspondingly, the temporary debugging transformer substation comprises a heavy-load transformer substation and a light-load transformer substation.
3. A high voltage line power outage maintenance system, comprising:
the device comprises a selecting module, a first debugging module and a second debugging module, wherein the selecting module is used for selecting a nearest temporary debugging line according to a target line to be overhauled, the target line to be overhauled comprises a transformer substation to be rebuilt, the temporary debugging line comprises a temporary debugging transformer substation, the transformer substation to be rebuilt comprises a first protecting device, the temporary debugging transformer substation comprises a second protecting device, and the first protecting device and the second protecting device comprise two paths of multiplexing optical fiber channels;
the transformation module is used for adding a newly-added line protection device into the transformer substation to be transformed according to the second protection device, performing protection transformation to obtain a transformed transformer substation, wherein the newly-added line protection device is consistent with the second protection device, and the protection transformation comprises: electric energy metering device transformation and secondary equipment deployment transformation;
the power failure module is used for performing power failure treatment on a to-be-overhauled area of the target to-be-overhauled line and corresponding secondary equipment;
the jumper connection module is used for selecting a jumper point outside a to-be-overhauled area of the target to-be-overhauled line, constructing a temporary jumper line with the temporary debugging line at the jumper point, and realizing optical fiber differential protection by adopting the newly-added line protection device;
and the recovery module is used for removing the temporary jumper connection line after the power failure maintenance is completed, and recovering the jumper of the protection line of the target line to be maintained.
4. A high voltage line power outage maintenance apparatus, said apparatus comprising a processor and a memory:
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to perform the high voltage line outage maintenance method of any one of claims 1-2 according to instructions in the program code.
5. A computer readable storage medium for storing program code for performing the high voltage line outage maintenance method of any of claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011531521.1A CN112701609B (en) | 2020-12-22 | 2020-12-22 | High-voltage line power failure maintenance method, system and related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011531521.1A CN112701609B (en) | 2020-12-22 | 2020-12-22 | High-voltage line power failure maintenance method, system and related device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112701609A CN112701609A (en) | 2021-04-23 |
| CN112701609B true CN112701609B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011531521.1A Active CN112701609B (en) | 2020-12-22 | 2020-12-22 | High-voltage line power failure maintenance method, system and related device |
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| CN110460152A (en) * | 2019-07-23 | 2019-11-15 | 湖北科技学院 | A kind of intelligent substation does not have a power failure newly-increased interval cut-in method |
| CN111682404A (en) * | 2020-06-09 | 2020-09-18 | 广东电网有限责任公司东莞供电局 | 10kV power system neutral point movable small resistor complete grounding device |
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| KR100826856B1 (en) * | 2008-01-31 | 2008-05-02 | 대한전기감리(주) | A jumper line eqipment for aerial transmission line |
| CN201789232U (en) * | 2010-08-30 | 2011-04-06 | 河南省电力公司郑州供电公司 | Device for handling failure of overhead line without power cut |
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