CN114002552A - Line protection remote non-power-off scheduled inspection method and system based on intelligent oscillograph - Google Patents
Line protection remote non-power-off scheduled inspection method and system based on intelligent oscillograph Download PDFInfo
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- CN114002552A CN114002552A CN202111277310.4A CN202111277310A CN114002552A CN 114002552 A CN114002552 A CN 114002552A CN 202111277310 A CN202111277310 A CN 202111277310A CN 114002552 A CN114002552 A CN 114002552A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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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
- H02H7/262—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 involving transmissions of switching or blocking orders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The application discloses a remote non-power-off scheduled inspection method and a system for line protection based on an intelligent wave recorder, the method sends a remote non-power-off transmission instruction to the intelligent wave recorder through an upper control device so as to obtain transmission control data of the line protection device, then carries out remote non-power-off transmission judgment on the line protection device, compares an obtained first judgment result with a second judgment result obtained by the same judgment of the intelligent wave recorder, if the two judgment results are normal, the line protection device can be determined to meet the execution condition of the non-power-off transmission, and sends a transmission execution instruction so that the line protection device can carry out the non-power-off transmission in response to the transmission execution instruction, and the pre-judgment of the transmission condition of the line protection device is carried out through the upper control device and the intelligent wave recorder so as to avoid the line protection device under the condition of not meeting the non-power-off transmission condition, the transmission execution instruction is still responded, and the technical problem that maloperation is easy to occur in remote non-power-off scheduled inspection in the prior art is solved.
Description
Technical Field
The application relates to the technical field of big data, in particular to a line protection remote non-power-outage regular inspection method and system based on an intelligent oscillograph.
Background
With the continuous development of power systems, the generation of large power grids, and the continuous emergence of novel power supply technologies and equipment, relay protection has become an important means for ensuring the safe operation of the power systems. In order to ensure reliable operation of the relay protection device and a secondary circuit thereof, the inspection regulation stipulates that relay protection regular inspection comprises partial inspection and full inspection, the first full inspection is finished within 1 year after commissioning, the first partial inspection is finished within 4 years, the full inspection is carried out within 7 years, and the partial inspection and the full inspection are alternately carried out every three years. All the transportation and inspection items are carried out according to the inspection steps set by the inspection operation instruction. And only if the inspection result meets the inspection standard, the inspected function is considered to be normal preliminarily, otherwise, the defects of each part of the relay protection and the secondary circuit thereof can be found.
The existing line protection device regular inspection method issues a non-power-off transmission command to a line protection device of a normal power supply line in a remote control mode, the line protection device judges that a non-power-off transmission outlet tripping circuit breaker is executed after various conditions are met, line power supply can be recovered through automatic reclosing, and regular inspection and verification of a tripping and closing loop of the line protection device are completed.
Disclosure of Invention
The application provides a line protection remote no-power-off regular inspection method and system based on an intelligent oscillograph, which are used for solving the technical problem that the remote no-power-off regular inspection is easy to malfunction in the prior art.
The application provides in a first aspect a line protection remote no-power-off scheduled inspection method based on an intelligent oscillograph, which comprises the following steps:
the upper control device sends a remote uninterrupted transmission instruction to an intelligent wave recorder at the transformer substation end, so that the intelligent wave recorder responds to the remote uninterrupted transmission instruction and uploads transmission control data acquired from a line protection device at the transformer substation end to the upper control device;
the upper control device performs remote non-power-off transmission judgment on the line protection device according to the received transmission control data and preset remote non-power-off transmission judgment condition information to obtain a first judgment result;
the upper control device compares the first judgment result with a second judgment result uploaded by the intelligent wave recorder according to the first judgment result, and when the first judgment result and the second judgment result are both normal, a transmission execution instruction is issued to the line protection device, so that the line protection device responds to the transmission execution instruction to execute a remote uninterrupted transmission action, otherwise, the transmission execution instruction is locked, wherein the second judgment result is obtained by combining preset remote uninterrupted transmission judgment condition information with the intelligent wave recorder according to the collected transmission control data and performing remote uninterrupted transmission judgment on the line protection device.
Preferably, the method further comprises the following steps:
and when the second judgment result is normal, a transmission execution instruction is issued to the line protection device, so that the line protection device responds to the transmission execution instruction to execute the remote uninterrupted transmission action, otherwise, the transmission execution instruction is locked.
Preferably, the upper control device further includes, after issuing a transmission execution instruction to the line protection device:
after the line protection device executes the remote uninterrupted transmission action, the upper control device collects transmission regular inspection result data generated after the line protection device executes the remote uninterrupted transmission action, so that a transmission regular inspection result report is generated based on the transmission result data.
Preferably, the upper control device specifically includes: and (4) a letter protection system.
Preferably, the transmission control data specifically includes: the system comprises running state data, sampling state data, soft pressing plate state data, reclosing charging state data, remote operation hard pressing plate state data and overhaul hard pressing plate state data.
Preferably, the upper control device still includes before sending the transmission instruction that does not have a power failure in the distant place to the intelligent oscillograph of transformer substation end:
the upper control device acquires identity information of a worker, carries out authority verification on the worker according to the identity information, sends a remote uninterrupted transmission instruction to the intelligent oscillograph if the worker has operation authority, and stops sending the remote uninterrupted transmission instruction if the worker does not have the operation authority.
The application second aspect provides a line protection distant place does not have a power failure and examines system regularly based on intelligence oscillograph, includes: the intelligent recorder comprises an upper control device, an intelligent recorder and a line protection device;
the upper control device is in communication connection with the intelligent wave recorder through an IEC61850 standard communication protocol;
the intelligent wave recorder is in communication connection with the line protection device through a DL/T860 MMS protocol;
the upper control device is used for sending a remote uninterrupted transmission instruction to an intelligent wave recorder at a transformer substation end, so that the intelligent wave recorder responds to the remote uninterrupted transmission instruction, uploading transmission control data acquired from a line protection device at the transformer substation end to the upper control device, performing remote uninterrupted transmission judgment on the line protection device according to the received transmission control data and preset remote uninterrupted transmission judgment condition information to obtain a first judgment result, comparing the first judgment result with a second judgment result uploaded by the intelligent wave recorder according to the first judgment result, and issuing a transmission execution instruction to the line protection device when the first judgment result and the second judgment result are both normal so that the line protection device responds to the transmission execution instruction, and executing the remote uninterrupted transmission action, otherwise, locking the transmission execution instruction, wherein the second judgment result is obtained by the intelligent wave recorder according to the acquired transmission control data and combining preset remote uninterrupted transmission judgment condition information to perform remote uninterrupted transmission judgment on the line protection device.
Preferably, the upper control device specifically includes: and (4) a letter protection system.
Preferably, the upper control device is further configured to:
and when the second judgment result is normal, a transmission execution instruction is issued to the line protection device, so that the line protection device responds to the transmission execution instruction to execute the remote uninterrupted transmission action, otherwise, the transmission execution instruction is locked.
Preferably, the upper control device is further configured to:
after the line protection device executes the remote uninterrupted transmission action, the upper control device collects transmission regular inspection result data generated after the line protection device executes the remote uninterrupted transmission action, so that a transmission regular inspection result report is generated based on the transmission result data.
According to the technical scheme, the embodiment of the application has the following advantages:
the method provided by the application sends a remote uninterrupted transmission instruction to an intelligent wave recorder at a transformer substation end through an upper control device, so as to obtain transmission control data of the line protection device through the intelligent wave recorder, then carries out remote uninterrupted transmission judgment on the line protection device, compares an obtained first judgment result with a second judgment result obtained by carrying out the same judgment on the intelligent wave recorder, if the two judgment results are normal, the line protection device can be determined to meet the execution condition of uninterrupted transmission, a transmission execution instruction can be issued, so that the line protection device carries out uninterrupted transmission in response to the transmission execution instruction, if the judgment result is abnormal, the issuing of the transmission execution instruction is automatically locked, so that the line protection device cannot carry out remote transmission operation, and the pre-judgment on the transmission condition of the line protection device is carried out through the upper control device and the intelligent wave recorder, the circuit protection device is prevented from responding to a transmission execution instruction under the condition that the uninterrupted transmission condition is not met, and the technical problem that the remote uninterrupted fixed-point detection is prone to false operation in the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic flow chart of an embodiment of a line protection remote non-stop scheduled inspection method based on an intelligent wave recorder according to the present application.
Fig. 2 is a schematic flow chart of another embodiment of a line protection remote non-stop scheduled inspection method based on an intelligent wave recorder according to the present application.
Fig. 3 is a logic flow diagram of remote non-stop transmission anticipation of the superordinate control device provided in the present application.
Fig. 4 is a schematic structural diagram of an embodiment of a line protection remote no-power-off scheduled inspection system based on an intelligent wave recorder according to the present application.
Fig. 5 is a schematic diagram of the overall information flow of the remote no-power-off scheduled inspection system of the line protection device provided in the present application.
Detailed Description
The embodiment of the application provides a line protection remote no-power-off scheduled inspection method and system based on an intelligent oscillograph, and is used for solving the technical problem that the remote no-power-off scheduled inspection is prone to misoperation in the prior art.
In order to make the objects, features and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a first embodiment of the present application provides a method for remote non-stop scheduled line inspection based on intelligent oscillograph for line protection, which includes:
and 101, the upper control device sends a remote uninterrupted transmission instruction to the intelligent wave recorder at the transformer substation end, so that the intelligent wave recorder responds to the remote uninterrupted transmission instruction and uploads transmission control data acquired from the circuit protection device at the transformer substation end to the upper control device.
And 102, the upper control device performs remote non-power-off transmission judgment on the line protection device according to the received transmission control data and preset remote non-power-off transmission judgment condition information to obtain a first judgment result.
In this step, the upper control device performs the remote non-power-off transmission judgment on the line protection device based on the transmission control data obtained through the intelligent wave recorder in combination with the preset remote non-power-off transmission judgment condition information, so as to obtain a first judgment result, where the first judgment result can reflect whether the line protection device has a condition for performing the remote non-power-off transmission and whether the remote non-power-off transmission can be performed.
And 103, comparing the first judgment result with a second judgment result uploaded by the intelligent wave recorder by the upper control device according to the first judgment result, and issuing a transmission execution instruction to the line protection device when the first judgment result and the second judgment result are both normal, so that the line protection device responds to the transmission execution instruction and executes the remote uninterrupted transmission action, otherwise, issuing the transmission execution instruction is locked, wherein the second judgment result is obtained by performing the remote uninterrupted transmission judgment on the line protection device according to the acquired transmission control data by the intelligent wave recorder in combination with preset remote uninterrupted transmission judgment condition information.
It should be noted that, in this step, based on the first determination result obtained in the previous step, the first determination result is compared with the second determination result uploaded by the intelligent wave recorder, and when the first determination result and the second determination result are both normal, a transmission execution instruction is issued to the line protection device, so that the line protection device responds to the transmission execution instruction to execute the remote uninterruptible transmission action, otherwise, the transmission execution instruction is locked to be issued, so that the line protection device does not execute the uninterruptible transmission.
And the second judgment result is obtained by the intelligent wave recorder according to the acquired transmission control data and combining the information of the remote uninterrupted transmission judgment condition which is the same as the upper control device to judge the remote uninterrupted transmission of the line protection device.
According to the method provided by the embodiment, the transmission condition of the line protection device is pre-judged through the upper control device and the intelligent wave recorder, the line protection device is prevented from responding to a transmission execution instruction under the condition that the transmission condition is not satisfied without power outage, and the technical problem that misoperation is easy to occur in remote power outage-free fixed detection in the prior art is solved.
The above is a detailed description of a first embodiment of a remote non-stop transmission scheduled inspection method for a line protection device provided by the present application, and the following is a detailed description of another embodiment of the remote non-stop transmission scheduled inspection method for the line protection device provided by the present application.
Referring to fig. 2, a second embodiment of the present application provides a remote non-stop transmission scheduled inspection method for a line protection device, including:
further, the upper control device specifically includes: and (4) a letter protection system.
It should be noted that the information protection system is a relay protection and fault information processing system (abbreviated as an information protection system). The intelligent device monitoring, controlling and managing system aims to provide intelligent devices (mainly comprising a relay protection device, a wave recorder and the like) in a monitoring, controlling and managing station for a dispatching end so as to improve the informatization level of the intelligent devices in a transformer substation. The intelligent device access information acquisition and processing system can acquire and process information of various intelligent devices accessed into the information protection system when the power grid normally operates and the power grid fails, and fully utilizes the information to serve scheduling operation, failure analysis and equipment management. With the further standardization of relay protection uploading data, the insurance system develops advanced applications such as remote control functions of fixed value modification, fixed value area switching, soft pressing plate switching, signal resetting and the like, and hard pressing plate checking and the like. The information protection system comprises a master station and a substation system which operate in all levels of scheduling and a substation system which operates in a transformer substation and a power plant.
When the upper control device is communicated with the station-side intelligent wave recorder of the transformer substation through an IEC61850 standard communication protocol, the intelligent wave recorder is communicated with the line protection device, so that a protection system of the upper control device can acquire information such as position information, state information, voltage and current sampling, switching-in, pressing plates and fixed values of the protection device and the measurement and control device, and whether the protection device has a remote uninterrupted transmission condition or not is judged in advance.
Further, the transmission control data mentioned in the first embodiment specifically includes: the system comprises running state data, sampling state data, soft pressing plate state data, reclosing charging state data, remote operation hard pressing plate state data and overhaul hard pressing plate state data.
It should be noted that, according to the method provided by the present application, before transmission, the protection state is pre-determined according to the transmission control data of the line protection device, so as to provide a conclusion whether uninterrupted transmission can be performed. As shown in fig. 3, the transmission control data and the judgment condition thereof specifically include the following examples:
the operation state is as follows: and judging whether starting or abnormal alarming exists.
Sampling state: and judging whether the protection analog quantity is normal or not.
The constant value state: and comparing the fixed value with the standard value, and judging whether the fixed value is normal or not.
Soft pressing plate state: and comparing the state of the soft pressing plate with the standard value, and judging whether the state of the soft pressing plate is normal or not.
Reclosing charging state: whether the reclosing is fully charged or not meets the precondition of uninterrupted transmission.
Remote operation hard platen state: the pressing plate is put into operation, and the uninterrupted transmission can be carried out.
And (3) overhauling the hard pressing plate state: the pressing plate is withdrawn, and the uninterrupted transmission can be carried out.
When the starting is not performed, the alarm is not performed, the running state is normal, the sampling is normal, the fixed value and the soft pressing plate are normal, the reclosing charging is performed, the hard pressing plate is operated in a remote place, the hard pressing plate is closed, and the hard pressing plate is maintained and retreated, the remote transmission operation is allowed to be performed. Otherwise, the remote transmission function is locked, and the reason that the operation is not allowed currently is indicated by methods such as alarm message indication and the like.
Further, before the upper control device sends the transmission instruction without power failure of the distant place to the line protection device, the upper control device further comprises:
It should be noted that, this embodiment further provides a step of performing authority verification based on identity information of a worker by using an upper control device, including: and verifying the operation authority of the task operator and the monitoring authority of the task monitor, and if the related staff does not have the authority, terminating the remote uninterrupted transmission operation, thereby avoiding the safety problem.
Further, after the upper control device in step 101 sends the remote uninterruptible transmission instruction to the intelligent wave recorder at the substation end, the method may further include the following steps:
It should be noted that, in this embodiment, the pre-judgment is performed on the intelligent wave recorder while the pre-judgment is performed by using the signal protection system at the master station, for example, if the pre-judgment acquisition time of the signal protection system is too long due to too much communication delay, the pre-judgment result of the intelligent wave recorder may be directly called, so as to further ensure the timeliness of the pre-judgment.
Further, after the upper control device in step 103 issues a transmission execution instruction to the line protection device, the method further includes:
and 104, after the line protection device executes the remote uninterrupted transmission action, the upper control device or the intelligent wave recorder collects transmission scheduled inspection result data generated after the line protection device executes the remote uninterrupted transmission action so as to generate a transmission scheduled inspection result report based on the transmission result data.
It should be noted that, based on the transmission execution instruction issued by the upper control device, after the uninterruptible transmission is executed, the master station may collect, through the intelligent wave recorder, transmission scheduled inspection result data generated after the line protection device executes the remote uninterruptible transmission action, and generate a transmission scheduled inspection result report, or may select the generation work of the scheduled inspection report executed by the intelligent wave recorder, and then the upper control device receives the transmission scheduled inspection result report sent by the intelligent wave recorder, and may export the transmission scheduled inspection report into a file in WORD or PDF format. The report content may refer to the following examples:
information before transmission: starting and alarming state, fixed value, soft pressing plate state value, reclosing charging state and position state.
After transmission: trip information with time marks, position change records and corresponding waveform file names.
And (4) a transmission conclusion: and the result of whether the uninterrupted transmission is successfully executed or not is obtained.
The integral scheme provided by the embodiment comprises three parts of a remote uninterrupted scheduled inspection monitoring prejudgment part and a remote uninterrupted transmission part of a protection system, wherein the three parts comprise a trigger protection device outlet and a protection equipment scheduled inspection report. And the intelligent wave recorder is adopted as the main body of execution at the transformer substation end by combining the specification of the south network intelligent wave recorder and the latest intelligent wave recorder inspection scheme. The intelligent wave recorder is communicated with the station control layer circuit protection device, all information of the circuit protection device can be obtained, wherein the information comprises position information and state information related to remote transmission, and information such as voltage and current sampling, access, pressing plates and definite values required by judgment, the related information is pre-judged, a pre-judgment result of the related information is directly transmitted to the main signal protection station in a report form, and the main signal protection station issues a remote uninterrupted transmission command to perform transmission definite inspection after the pre-judgment result and the communication and protection model state are correct. The safety, reliability and visualization of remote transmission scheduled inspection without power failure are improved. The method meets the requirements of remote uninterrupted scheduled inspection of a relay protection device and a secondary circuit, and achieves the effects of increasing efficiency and reducing load.
The above is a detailed description of a second embodiment of the remote non-stop transmission scheduled inspection method for the line protection device provided by the present application, and the following is a detailed description of an embodiment of the remote non-stop transmission scheduled inspection system for the line protection device provided by the present application.
Referring to fig. 4, a third embodiment of the present application provides a line protection remote non-stop scheduled inspection system based on an intelligent recorder, including: the intelligent recorder comprises an upper control device A, an intelligent recorder B and a line protection device C;
the upper control device A is in communication connection with the intelligent recorder B through an IEC61850 standard communication protocol;
the intelligent wave recorder B is in communication connection with the line protection device C through a DL/T860 MMS protocol;
the upper control device A is used for sending a remote uninterrupted transmission instruction to the intelligent wave recorder B at the transformer station end, so that the intelligent wave recorder B responds to the remote uninterrupted transmission instruction, uploading transmission control data acquired from the circuit protection device C at the transformer station end to the upper control device, performing remote uninterrupted transmission judgment on the circuit protection device C according to the received transmission control data and preset remote uninterrupted transmission judgment condition information to obtain a first judgment result, comparing the first judgment result with a second judgment result uploaded by the intelligent wave recorder B according to the first judgment result, and issuing a transmission execution instruction to the circuit protection device C when the first judgment result and the second judgment result are both normal so that the circuit protection device C responds to the transmission execution instruction to execute remote uninterrupted transmission action, and otherwise, locking transmission execution command issuing, wherein the second judgment result is obtained by performing remote uninterrupted transmission judgment on the line protection device C by the intelligent wave recorder B according to the acquired transmission control data and in combination with preset remote uninterrupted transmission judgment condition information.
Preferably, the upper control device a is specifically: and (4) a letter protection system.
As shown in fig. 5, the intelligent wave recorder B of the present embodiment communicates with the line protection device C of the station control layer through DL/T860 MMS, and can acquire all information of the line protection device, including position information and state information related to remote transmission, and information such as voltage and current sampling, access, pressure plate, and setting value required for determination. The intelligent wave recorder B can directly transmit the related information to the main station and simultaneously transmit the self diagnosis and analysis results to the main station in a report mode. The intelligent wave recorder B can locally initiate uninterrupted transmission and also supports uninterrupted transmission initiated by the main station on information transmission.
And the upper control device A at the master station end is accessed into the intelligent wave recorder B through an IEC61850 protocol. When the remote uninterrupted transmission is initiated from the master station end, the master station confirms whether the protection device has the safe exit condition or not through the protection reclosing charging state, the switching position, the operation area fixed value, the alarm state and the like, and then issues a remote uninterrupted transmission control order for the protection device.
The intelligent wave recorder B can also be operated locally to execute remote uninterrupted transmission, and after confirming whether the protection device has the safe exit condition or not through the protection reclosing charging state, the switching position, the operation area fixed value, the alarm state and the like, a remote uninterrupted transmission control order is issued for the protection device. The master station can remotely call and read the report of the intelligent wave recorder B which locally executes the uninterrupted transmission.
The line protection device can also perform self-checking after receiving the uninterrupted transmission control command, execute the control command outlet after the self-checking result of the line protection device C meets the uninterrupted transmission condition, execute the coincidence outlet after the transmission tripping outlet, forbid executing the control command and return the control failure command when the self-checking result does not meet the uninterrupted transmission condition, and the line protection device C can transmit all signals in the uninterrupted transmission control process to the intelligent recorder B and/or the upper control device A.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the terminal, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed terminal, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The terms "first," "second," "third," "fourth," and the like in the description of the application and the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A line protection remote non-power-off scheduled inspection method based on an intelligent oscillograph is characterized by comprising the following steps:
the upper control device sends a remote uninterrupted transmission instruction to an intelligent wave recorder at the transformer substation end, so that the intelligent wave recorder responds to the remote uninterrupted transmission instruction and uploads transmission control data acquired from a line protection device at the transformer substation end to the upper control device;
the upper control device performs remote non-power-off transmission judgment on the line protection device according to the received transmission control data and preset remote non-power-off transmission judgment condition information to obtain a first judgment result;
the upper control device compares the first judgment result with a second judgment result uploaded by the intelligent wave recorder according to the first judgment result, and when the first judgment result and the second judgment result are both normal, a transmission execution instruction is issued to the line protection device, so that the line protection device responds to the transmission execution instruction to execute a remote uninterrupted transmission action, otherwise, the transmission execution instruction is locked, wherein the second judgment result is obtained by combining preset remote uninterrupted transmission judgment condition information with the intelligent wave recorder according to the collected transmission control data and performing remote uninterrupted transmission judgment on the line protection device.
2. The line protection remote non-power-off scheduled inspection method based on the intelligent wave recorder as claimed in claim 1, further comprising:
and when the second judgment result is normal, a transmission execution instruction is issued to the line protection device, so that the line protection device responds to the transmission execution instruction to execute the remote uninterrupted transmission action, otherwise, the transmission execution instruction is locked.
3. The method as claimed in claim 1, wherein the upper control device issues a transmission execution instruction to the line protection device, and then the method further comprises:
after the line protection device executes the remote uninterrupted transmission action, the upper control device collects transmission regular inspection result data generated after the line protection device executes the remote uninterrupted transmission action, so that a transmission regular inspection result report is generated based on the transmission result data.
4. The remote uninterruptible transmission scheduled inspection method for the line protection device according to claim 1, wherein the upper control device is specifically: and (4) a letter protection system.
5. The remote uninterruptible transmission scheduled inspection method for the line protection device according to claim 1, wherein the transmission control data specifically includes: the system comprises running state data, sampling state data, soft pressing plate state data, reclosing charging state data, remote operation hard pressing plate state data and overhaul hard pressing plate state data.
6. The remote non-power-off transmission scheduled inspection method for the line protection device as claimed in claim 1, wherein before the upper control device sends the remote non-power-off transmission instruction to the intelligent recorder at the substation end, the method further comprises:
the upper control device acquires identity information of a worker, carries out authority verification on the worker according to the identity information, sends a remote uninterrupted transmission instruction to the intelligent oscillograph if the worker has operation authority, and stops sending the remote uninterrupted transmission instruction if the worker does not have the operation authority.
7. The utility model provides a line protection distant place does not have a power failure and examines system regularly based on intelligence oscillograph which characterized in that includes: the intelligent recorder comprises an upper control device, an intelligent recorder and a line protection device;
the upper control device is in communication connection with the intelligent wave recorder through an IEC61850 standard communication protocol;
the intelligent wave recorder is in communication connection with the line protection device through a DL/T860 MMS protocol;
the upper control device is used for sending a remote uninterrupted transmission instruction to an intelligent wave recorder at a transformer substation end, so that the intelligent wave recorder responds to the remote uninterrupted transmission instruction, uploading transmission control data acquired from a line protection device at the transformer substation end to the upper control device, performing remote uninterrupted transmission judgment on the line protection device according to the received transmission control data and preset remote uninterrupted transmission judgment condition information to obtain a first judgment result, comparing the first judgment result with a second judgment result uploaded by the intelligent wave recorder according to the first judgment result, and issuing a transmission execution instruction to the line protection device when the first judgment result and the second judgment result are both normal so that the line protection device responds to the transmission execution instruction, and executing the remote uninterrupted transmission action, otherwise, locking the transmission execution instruction, wherein the second judgment result is obtained by the intelligent wave recorder according to the acquired transmission control data and combining preset remote uninterrupted transmission judgment condition information to perform remote uninterrupted transmission judgment on the line protection device.
8. The remote uninterruptible transmission scheduled inspection system for the line protection device according to claim 7, wherein the upper control device is specifically: and (4) a letter protection system.
9. The remote uninterruptible power transmission scheduled inspection system for the line protection device as claimed in claim 7, wherein the upper control device is further configured to:
and when the second judgment result is normal, a transmission execution instruction is issued to the line protection device, so that the line protection device responds to the transmission execution instruction to execute the remote uninterrupted transmission action, otherwise, the transmission execution instruction is locked.
10. The remote uninterruptible power transmission scheduled inspection system for the line protection device as claimed in claim 7, wherein the upper control device is further configured to:
after the line protection device executes the remote uninterrupted transmission action, the upper control device collects transmission regular inspection result data generated after the line protection device executes the remote uninterrupted transmission action, so that a transmission regular inspection result report is generated based on the transmission result data.
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| CN107508264A (en) * | 2017-08-16 | 2017-12-22 | 国电南瑞科技股份有限公司 | A kind of site route protection does not have a power failure drive method |
| CN111864894A (en) * | 2019-04-26 | 2020-10-30 | 中国南方电网有限责任公司 | Remote uninterrupted power transmission calibration method suitable for line protection device |
| CN110850232A (en) * | 2019-11-13 | 2020-02-28 | 云南电网有限责任公司 | Power grid fault diagnosis system and method based on relay protection auxiliary decision system |
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