CN114977486A - Anti-misoperation system and method for remote control soft pressing plate of combined intelligent substation - Google Patents
Anti-misoperation system and method for remote control soft pressing plate of combined intelligent substation Download PDFInfo
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- CN114977486A CN114977486A CN202210436587.5A CN202210436587A CN114977486A CN 114977486 A CN114977486 A CN 114977486A CN 202210436587 A CN202210436587 A CN 202210436587A CN 114977486 A CN114977486 A CN 114977486A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a combined intelligent substation remote control soft pressing plate anti-misoperation system and a method, which utilize real-time information of a background database to carry out associated calling on required information; making a judgment logic of the switching operation of the soft pressing plate, and accurately judging the logic of the remote control soft pressing plate operation by using the acquired information as a judgment basis; and taking the judgment result of the judgment logic as the input of the locking module to accurately lock the error operation. The method for judging the functional soft pressing plate adopts a primary equipment running state judging method, the method for judging the outlet soft pressing plate adopts a protection integrity judging method, the method for judging the receiving soft pressing plate adopts a protection 'trip-on' state judging method, and the method for remotely locking adopts flow locking. The invention judges the remote control function of automatic locking or opening of the soft pressing plate according to the anti-misoperation logic, really realizes intelligent locking, fundamentally avoids the remote control misoperation of the soft pressing plate of the intelligent transformer substation, and provides an effective technical means for the safe operation of the daily operation and maintenance of the intelligent transformer substation.
Description
Technical Field
The invention relates to an intelligent substation control technology, in particular to a combined type intelligent substation remote control soft pressing plate anti-misoperation system and method.
Background
With the application of IEC61850, the intelligent substation realizes the digitization and networking of signals, the secondary equipment structure is changed, the core is that the optical fiber replaces the traditional cable to realize information interaction, the original relay protection device function hard pressing plate and the loop outlet hard pressing plate are also replaced by the corresponding soft pressing plates, meanwhile, in order to ensure the correct transmission of digital signals, the relay protection device is additionally provided with the receiving soft pressing plate, and the abnormal SV information and the abnormal GOOSE information can be effectively isolated, as shown in figure 1.
The soft pressing plates of the secondary equipment in the intelligent substation are mainly divided into three categories, namely a functional soft pressing plate, an outlet soft pressing plate and a receiving soft pressing plate, which directly determine the operation state of the secondary equipment, particularly the relay protection soft pressing plate, and are directly related to the reliable and correct operation of a first line of defense line of a power grid.
The soft pressing plate utilizes software logic to strengthen the control of function switching and exit signals, replaces a hard pressing plate of a conventional transformer substation, and is used for realizing various functions of the protection device. The function soft pressing plate is used for communicating a switch of an electrical function, the GOOSE outlet soft pressing plate is used for communicating a jump switch and a switch of an electrical loop, and the SV receiving soft pressing plate is used for communicating a voltage and current sampling switch of the electrical loop.
The switching on and off of the soft pressing plate refers to switching on and off of a certain function of the software system, such as switching on and off of a certain protection and control function. For the intelligent substation, only if the soft pressing plate corresponding to the protection device is correctly put into use, the corresponding function can be realized, and when the protection device is put into operation by mistake, the misoperation condition of the protection device can be caused.
In order to ensure that the generated energy of the wind power plant is reliably connected to the grid, the remote control soft pressing plate is ensured not to be subjected to misoperation, so that the reliability of new energy grid connection is improved.
At present, remote control operation of a background in a station is realized by the remote control operation of a soft pressing plate in the station, but the remote control operation of the soft pressing plate is only influenced by the states of a hard pressing plate for remote operation and a soft pressing plate for remote operation of the device, other judgment conditions are not provided, the remote control operation of the soft pressing plate is complex in switching logic and strict in switching sequence, and the conditions cause misoperation to easily occur in the remote control operation of the soft pressing plate, so that the relay protection function is in misoperation or misoperation locking, and the reliable and correct operation of a power grid is directly threatened.
Before, the event that the misoperation of the soft pressing plate causes the misoperation of the relay protection of the intelligent substation occurs. In the protection service process of 220KV bus of a certain transformer substation 9/2015, due to the fact that the operation sequence of the soft pressing plates is wrong, bus differential protection in the operation process generates differential current, protection misoperation is caused, and partial operation lines are tripped in a wrong mode.
With the promotion of integration of construction and operation and maintenance of a secondary system of a new generation transformer substation, the number of remote control operations of the soft pressing plate can be increased continuously, and the hidden danger of misoperation can also be increased. The prior remote control soft pressing plate flow is shown in figure 2. The flow chart shows that the current remote control operation of the soft pressing plate is executed only by correctly inputting the operation password and the monitoring password, and the steps of logic judgment and misoperation locking of the soft pressing plate operation are not carried out. The user requirements cannot be met, and the existing remote control operation process needs to be improved.
Therefore, a method for preventing misoperation of the soft pressing plate needs to be developed, misoperation of the intelligent substation remote control soft pressing plate is avoided, and user requirements are met.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a combined type intelligent substation remote control soft pressing plate anti-misoperation system and method.
The invention adopts the following technical scheme.
A combined intelligent substation remote control soft pressing plate anti-misoperation method comprises the following steps:
(1) carrying out associated calling on the required information by utilizing the real-time information of the background database;
(2) making a judgment logic of the switching operation of the soft pressing plate, and accurately judging the logic of the remote control soft pressing plate operation by using the acquired information as a judgment basis;
(3) and taking the judgment result of the judgment logic as the input of the locking module to accurately lock the error operation.
Further, in the step (2), the logic judgment method is divided into a functional soft pressing plate judgment method, an outlet soft pressing plate judgment method and a receiving soft pressing plate judgment method.
Further, the method for judging the functional soft pressing plate adopts a method for judging the running state of primary equipment, and when the switch is in an 'on position' or 'on current' state and the adjacent isolation switch is in an 'on position', the primary equipment is in a running state.
Further, the method for judging the outlet soft pressing plate adopts a method for judging the integrity of protection, and when the main protection related function soft pressing plate, the SV receiving soft pressing plate and the GOOSE outlet soft pressing plate are all put into use and the state of the pilot channel of the protection device is normal, the protection is complete.
Further, the state of the pilot channel of the protection device is normally confirmed, and abnormal alarm signals of the protection device are collected to serve as judgment basis, wherein common alarm signals comprise protection actions, inconsistent maintenance, broken control loops, non-stored energy of springs and broken TV lines.
Further, the method for judging the receiving soft pressing plate adopts a method for judging the protection 'throw-trip' state, if the primary equipment is in the running state and the protection device is in the 'throw-trip' state, the trip outlet soft pressing plate is in the throw-trip state, and the corresponding receiving soft pressing plate cannot be operated.
Further, in the step (3), the remote control locking method adopts flow locking, specifically,
when the operation of the remote control soft pressing plate is accurately logically judged, and the current operation is judged to be the misoperation unexecutable, the judgment result of the judgment logic is taken as the locking opening, when the locking opening is received, the whole remote control process is interrupted, and an alarm window is popped up to remind an operator that the current operation is unexecutable.
Further, the judgment result of the judgment logic returns 0 or 1, the correctness is 1, and the error is 0.
Further, in the step (3), if the judgment result is an error, locking the error operation; if the judgment result is correct, the remote control password is input to issue and execute the command.
A remote control soft pressing plate misoperation prevention system of a combined intelligent substation comprises a function soft pressing plate judgment module, an outlet soft pressing plate judgment module, a receiving soft pressing plate judgment module and a remote control locking module;
the functional soft pressing plate judging module acquires the associated equipment information and accurately performs logic judgment on the operation of the functional soft pressing plate according to the judging logic of the switching operation of the functional soft pressing plate;
the outlet soft pressing plate judging module acquires the information of the associated equipment and accurately performs logic judgment on the operation of the outlet soft pressing plate according to the judgment logic of the switching operation of the outlet soft pressing plate;
the receiving soft pressing plate judging module is used for acquiring the information of the associated equipment and accurately judging the operation of receiving the soft pressing plate according to the judging logic of the operation of receiving the soft pressing plate;
and the remote control locking module takes the judgment result of the judgment logic as an input, accurately locks the flow of the error operation and generates an alarm.
Compared with the prior art, the remote control soft pressing plate misoperation prevention software for the intelligent substation judges the consequence caused by the remote control operation of the relay protection soft pressing plate based on the operation states of the primary and secondary equipment in the monitoring background and the alarm signal, is favorable for comprehensively improving the operation efficiency, reducing the operation risk, avoiding the power grid accident caused by manual misoperation and providing effective safety guarantee for the stable operation of a power system.
The anti-misoperation software judges the remote control function of automatic locking or opening of the soft pressing plate according to the anti-misoperation logic, really realizes intelligent locking, fundamentally stops the remote control misoperation of the soft pressing plate of the intelligent substation, and provides an effective technical means for the safe operation of the daily operation and maintenance of the intelligent substation.
Drawings
FIG. 1 is a schematic view of a soft platen;
FIG. 2 is a flow chart of a prior art remote control soft platen;
FIG. 3 is a flow chart of the anti-misoperation method of the remote control soft pressing plate of the combined intelligent substation;
FIG. 4 is a schematic view of the remote control soft pressure plate anti-misoperation system of the combined intelligent substation;
FIG. 5 is a schematic view of a primary equipment operation state determination method;
FIG. 6 is a schematic diagram of a method for determining protection integrity;
FIG. 7 is a schematic diagram of protection device status confirmation;
fig. 8 is a schematic diagram of a remote lockout method.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.
The software for preventing misoperation of the remote control soft pressing plate of the intelligent substation carries out logic judgment according to the real-time states of the soft pressing plate and the protection device, locks the misoperation and stops the misoperation in the working process of the remote control soft pressing plate.
As shown in fig. 3, real-time information of the existing background database is utilized, corresponding judgment logic is formulated according to the switching principle of the intelligent substation soft pressing plate, a step of locking against misoperation is added to the process of remotely controlling the soft pressing plate, and the steps of executing correct operation and locking against misoperation are performed.
The invention relates to an anti-misoperation method of a remote control soft pressing plate of a combined intelligent substation, which comprises the following specific steps:
(1) performing associated calling on the required information of the corresponding equipment by using the real-time information of the background database;
(2) making a judgment logic of the switching operation of the soft pressing plate, and accurately judging the logic of the remote control soft pressing plate operation by using the acquired information as a judgment basis;
(3) and taking the judgment result of the judgment logic as the input of the locking module to accurately lock the error operation.
As shown in fig. 4, the misoperation locking software developed based on the background database mainly consists of a logic judgment method and a remote control locking method. The logic judgment method is expanded and divided into a function soft pressing plate judgment method, an outlet soft pressing plate judgment method and a receiving soft pressing plate judgment method.
Correspondingly, the anti-misoperation system of the remote control soft pressing plate of the combined intelligent substation comprises a function soft pressing plate judgment module, an outlet soft pressing plate judgment module, a receiving soft pressing plate judgment module and a remote control locking module.
And the functional soft pressing plate judging module is used for accurately judging the operation of the functional soft pressing plate according to the judging logic of the switching operation of the functional soft pressing plate.
The judging method of the functional soft pressing plate judging module adopts a primary equipment running state judging method, and 100% of accuracy judges whether the functional soft pressing plate can be put on or off.
The functional soft pressing plate directly determines whether a certain function of the device is put into operation, if the functional soft pressing plate is put into operation by mistake, the corresponding protection function can be caused to malfunction or the device can lose the protection function.
As shown in fig. 5, the method for determining the operation state of the primary device is to determine the actual operation state of the primary device by using the position signals of the switch and the adjacent isolation switch and assisting with the current, and when the switch is in the "closed position" or "flowing", and the adjacent isolation switch is in the "closed position", the primary device is in the operation state.
The primary equipment is in an operating state, and the operation of the soft pressing plate cannot cause the primary equipment to operate without main protection; when the primary equipment is in an operating state, particularly equipment with voltage of 220kV and above, the operation of the soft pressing plate cannot cause the non-failure protection operation of the equipment.
Specifically, the remote signaling state and the remote measuring value of the corresponding equipment are correlated from the background database, the anti-misoperation logic of the soft pressing plate is edited, logical AND, OR and NOT operation is performed by using the remote signaling remote measuring data, and the operation result is displayed in a 0 and 1 mode.
The judgment result accuracy of the primary equipment running state testing judgment method is shown in table 1. And (5) performing 50 times of logic judgment, judging the correctness for 50 times, and judging the correctness of the result to be 100%.
TABLE 1
And the outlet soft pressing plate judging module is used for accurately judging the operation of the outlet soft pressing plate according to the judging logic of the operation of the outlet soft pressing plate.
The judgment method of the outlet soft pressing plate judgment module adopts a protection integrity judgment method, and 100% of accuracy judges whether the outlet soft pressing plate can be put on or off.
And the outlet soft pressing plate determines whether a corresponding GOOSE command is sent after a certain function of the relay protection device meets an action condition, such as tripping, reclosing, failure and the like. If the soft pressure plate at the outlet is thrown by mistake, the GOOSE command is output by mistake after the protection or reclosing action is caused; if the soft pressing plate of the exit is mistakenly withdrawn, the GOOSE command cannot be exported after protection or reclosing action is caused, and the fault range is enlarged.
As shown in fig. 6, the protection integrity, that is, the main protection function and the failure protection function, can operate normally, and the trip outlet is switched in, the main protection related function soft pressing plate, the SV receiving soft pressing plate and the GOOSE outlet soft pressing plate are all switched in, and for the pilot protection, the pilot channel state of the protection device is required to be normal. And when the protection is incomplete, the soft pressing plate is forbidden to operate, otherwise, the protection running state of the related primary equipment is continuously judged.
And acquiring the real-time state of the soft pressing plate of the corresponding equipment from the background database, judging whether the switching of the protection soft pressing plate meets the protection integrity, performing logical AND, OR and NOT operation by using the real-time values of the soft pressing plates, and displaying the operation result in a 0 and 1 mode. The method is realized in one step only by making judgment logic and is suitable for judging the switching-on and switching-off of the outlet soft pressing plate under various conditions.
As shown in fig. 7, for the analysis of the protection integrity determination method, before the logic determination, the state of the protection device should be confirmed, and it is first confirmed that the protection device is normally operated, so that the next logic determination can be performed. The abnormal alarm signal of the protection device is collected as the judgment basis. And performing OR logic operation on the common alarm signal protection action, inconsistent maintenance, control loop disconnection, non-stored energy of a spring and TV disconnection of secondary equipment in the station, and forbidding the operation device to perform soft pressing plate when any abnormal signal exists.
The test protection integrity judgment method judges the accuracy of the result, as shown in table 2. And (5) performing 50 times of logic judgment, judging the correctness for 50 times, and judging the correctness of the result to be 100%.
TABLE 2
And the receiving soft pressing plate judging module is used for accurately judging the operation of receiving the soft pressing plate according to the judging logic of the receiving soft pressing plate switching operation.
The judging method of the receiving soft pressing plate judging module adopts a protection trip state judging method to judge whether the SV receiving soft pressing plate can be switched on or off 100 percent correctly.
The receiving soft pressing plate is divided into an SV receiving soft pressing plate and a GOOSE receiving soft pressing plate, wherein the SV receiving soft pressing plate determines whether the device normally processes the SV information, and is responsible for controlling the adopted value information from the merging unit and monitoring the state of the sampling link.
Protection 'throw trip', namely, the protection can be normally exported after protection action, so that the protection can be judged to be in a 'throw trip' state when a GOOSE trip outlet soft pressing plate of the protection device is thrown, and SV receiving soft pressing plate operation is forbidden when the protection device is not withdrawn and is in the 'throw trip' state when primary equipment operates.
If the primary equipment is in the running state and the protection device is in the 'trip-on' state, namely the trip-off outlet soft pressing plate is in the trip-on state, the corresponding SV receiving soft pressing plate in the protection device cannot be operated.
And acquiring the real-time state of the soft pressing plate corresponding to the protection device from the background database, performing logical OR operation on the state of the outlet soft pressing plate, obtaining a result of 1 when the outlet soft pressing plate is in the input state, and sending the result to the remote control locking module after negation. Whether the SV receiving soft pressing plate is allowed to be operated or not is determined by judging the on-off state of the outlet soft pressing plate, the judging mode is simple and direct, and the judging accuracy is 100%.
And the remote control locking module is used for taking the judgment result of the judgment logic as an input, and accurately locking the error operation.
The remote control locking method adopts flow locking, locks the current operation 100% correctly and generates an alarm. The remote control locking method is that when the functional soft pressing plate locking module, the outlet soft pressing plate locking module and the receiving soft pressing plate locking module judge that the current operation belongs to misoperation and can not be executed, the remote control locking module can accurately and reliably lock the operation and generate an alarm to remind an operator that the current operation does not meet the switching requirement.
As shown in fig. 8, after receiving the lock-in, the whole remote control process is interrupted, and an alarm window is popped up to remind the operator that the current operation cannot be executed. And locking the current remote control process to make the operation not be executed. The locking principle of the current operation process is satisfied when the function, the outlet and the receiving soft pressing plate locking module are opened. Only the current operation is locked, and other operations are not influenced.
The method comprises the specific implementation process of the remote control soft pressing plate anti-misoperation system of the combined intelligent substation.
Collecting the positions and real-time current values of a switch and an adjacent disconnecting link of primary equipment according to the design requirement of a functional soft pressing plate locking method; performing logic programming according to a primary equipment running state judgment method; by simulating different running states, the test logic judges whether the requirement of 100 percent accuracy is met; monitoring whether a lockout signal can be issued for an operation requiring lockout.
Acquiring real-time input states of the soft pressing plate with the related functions, the SV receiving soft pressing plate and the GOOSE outlet soft pressing plate according to the design requirements of an outlet soft pressing plate locking method; performing logic programming according to a protection integrity judgment method; by simulating different running states, the test logic judges whether the requirement of 100 percent accuracy is met; monitoring whether a lockout signal can be issued for an operation requiring lockout.
According to the design requirement of an SV receiving soft pressing plate locking method, acquiring the positions of a switch and an adjacent disconnecting link of primary equipment, the real-time current value and the real-time input state of a GOOSE outlet soft pressing plate; carrying out logic programming according to a protection 'trip operation' state judgment method; by simulating different running states, the test logic judges whether the requirement of 100 percent accuracy is met; monitoring whether a lockout signal can be issued for an operation requiring lockout.
Performing flow locking programming according to a flow locking method; and when the analog receiving of the locking signal, checking whether the locking success rate can reach 100%.
Classifying the soft pressing plates of all protection devices in the station; associating locking methods corresponding to the protection soft pressing plates; checking the safety of the program; carrying out overall function debugging on the locking method; and checking whether the whole function debugging meets the requirements.
The following experiments were conducted to test the software of the present invention. The developed software for preventing misoperation of the remote control soft pressing plate of the intelligent substation is applied to inspection work of the Jiabao 110kV transformer substation, and the test results are counted, wherein the counting results are shown in the following table 3.
TABLE 3
| Kind of pressing plate | Total number of times of putting in and out | Correct number of times of putting in or out | Number of times of erroneous operation | Number of locks | Number of correct actions |
| Functional soft pressing plate | 240 | 233 | 7 | 7 | 240 |
| Outlet soft pressing plate | 80 | 76 | 4 | 4 | 80 |
| Receiving soft pressing plate | 80 | 77 | 3 | 3 | 80 |
As can be seen from the table, in the inspection work of the Jiabao 110kV transformer substation, the misoperation prevention software of the remote control soft pressure plate of the intelligent transformer substation is utilized to ensure that the misoperation times of the remote control soft pressure plate of the intelligent transformer substation are 0.
Compared with the prior art, the intelligent substation remote control soft pressing plate misoperation prevention software judges the consequences caused by the remote control operation of the relay protection soft pressing plate based on the operation states of the primary and secondary devices and the alarm signals of the monitoring background, is beneficial to comprehensively improving the operation efficiency, reducing the operation risk, avoiding the power grid accidents caused by manual misoperation and providing effective safety guarantee for the stable operation of the power system.
The anti-misoperation software judges the remote control function of automatic locking or opening of the soft pressing plate according to the anti-misoperation logic, really realizes intelligent locking, fundamentally stops the remote control misoperation of the soft pressing plate of the intelligent substation, and provides an effective technical means for the safe operation of the daily operation and maintenance of the intelligent substation.
The application of the anti-misoperation software lays a solid foundation for safe and stable operation of the intelligent station, provides good operation conditions for reliable consumption of new energy at the power grid side, and protects driving and navigating for realizing double-carbon targets and constructing a 'double-new' power system.
The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.
Claims (10)
1. A combined type intelligent substation remote control soft pressing plate anti-misoperation method is characterized by comprising the following steps:
(1) carrying out associated calling on the required information by utilizing the real-time information of the background database;
(2) making a judgment logic of the switching operation of the soft pressing plate, and accurately judging the logic of the remote control soft pressing plate operation by using the acquired information as a judgment basis;
(3) and taking the judgment result of the judgment logic as the input of the locking module to accurately lock the error operation.
2. The remote control soft pressure plate anti-misoperation method for the combined intelligent substation according to claim 1,
in the step (2), the logic judgment method is divided into a function soft pressing plate judgment method, an outlet soft pressing plate judgment method and a receiving soft pressing plate judgment method.
3. The combined type intelligent substation remote control soft pressure plate anti-misoperation method according to claim 2,
the functional soft pressing plate judging method adopts a primary equipment running state judging method, and when a switch is in an 'on' position or 'flowing' state and an adjacent isolation switch is in an 'on' position, the primary equipment is in a running state.
4. The combined type intelligent substation remote control soft pressure plate anti-misoperation method according to claim 2,
and the exit soft pressing plate judging method adopts a protection integrity judging method, and when the main protection related function soft pressing plate, the SV receiving soft pressing plate and the GOOSE exit soft pressing plate are all put into use and the pilot channel state of the protection device is normal, the protection is complete.
5. The combined type intelligent substation remote control soft pressure plate anti-misoperation method according to claim 4,
the status of the pilot channel of the protection device is normally confirmed, and abnormal alarm signals of the protection device are collected as judgment basis, wherein the common alarm signals comprise protection actions, inconsistent maintenance, broken control loops, non-stored energy of springs and broken TV lines.
6. The combined type intelligent substation remote control soft pressure plate anti-misoperation method according to claim 2,
and the receiving soft pressing plate judging method adopts a protection 'throw-trip' state judging method, and if the primary equipment is in an operating state and the protection device is in a 'throw-trip' state, the trip outlet soft pressing plate is in a throw-trip state and the corresponding receiving soft pressing plate cannot be operated.
7. The remote control soft pressure plate anti-misoperation method for the combined intelligent substation according to claim 1,
in the step (3), the remote control locking method adopts flow locking, specifically,
when the operation of the remote control soft pressing plate is accurately logically judged, and the current operation is judged to be the misoperation unexecutable, the judgment result of the judgment logic is taken as the locking opening, when the locking opening is received, the whole remote control process is interrupted, and an alarm window is popped up to remind an operator that the current operation is unexecutable.
8. The remote control soft pressure plate anti-misoperation method for the combined intelligent substation according to claim 1,
and the judgment result of the judgment logic returns 0 or 1, the correctness is 1, and the error is 0.
9. The combined type intelligent substation remote control soft pressure plate anti-misoperation method according to claim 2,
in the step (3), if the judgment result is wrong, locking the wrong operation; if the judgment result is correct, the remote control password is input to issue and execute the command.
10. A combined type intelligent substation remote control soft pressing plate misoperation prevention system is characterized by comprising a functional soft pressing plate judgment module, an outlet soft pressing plate judgment module, a receiving soft pressing plate judgment module and a remote control locking module;
the functional soft pressing plate judging module acquires the associated equipment information and accurately performs logic judgment on the operation of the functional soft pressing plate according to the judging logic of the switching operation of the functional soft pressing plate;
the outlet soft pressing plate judging module acquires the associated equipment information and accurately performs logic judgment on the operation of the outlet soft pressing plate according to the judging logic of the operation of the outlet soft pressing plate;
the receiving soft pressing plate judging module is used for acquiring the information of the associated equipment and accurately judging the operation of receiving the soft pressing plate according to the judging logic of the operation of receiving the soft pressing plate;
and the remote control locking module takes the judgment result of the judgment logic as an input, accurately performs flow locking on the error operation and generates an alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210436587.5A CN114977486A (en) | 2022-04-25 | 2022-04-25 | Anti-misoperation system and method for remote control soft pressing plate of combined intelligent substation |
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| CN202210436587.5A CN114977486A (en) | 2022-04-25 | 2022-04-25 | Anti-misoperation system and method for remote control soft pressing plate of combined intelligent substation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116009926A (en) * | 2023-03-27 | 2023-04-25 | 广东电网有限责任公司中山供电局 | Remote upgrading method, device and system for relay protection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116009926A (en) * | 2023-03-27 | 2023-04-25 | 广东电网有限责任公司中山供电局 | Remote upgrading method, device and system for relay protection device |
| CN116009926B (en) * | 2023-03-27 | 2023-06-02 | 广东电网有限责任公司中山供电局 | Remote upgrading method, device and system for relay protection device |
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