CN112219835A - Substation safety protection system and control method, control device and storage medium thereof - Google Patents
Substation safety protection system and control method, control device and storage medium thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
- A01M29/18—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves using ultrasonic signals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/06—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like
- A01M29/10—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like using light sources, e.g. lasers or flashing lights
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
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Abstract
The invention relates to a safety protection system of a substation, a control method, a control device and a storage medium thereof, wherein the control method comprises the following steps: acquiring a target working mode selected by a user aiming at a group of safety protection devices; generating a control instruction corresponding to the target working mode, and sending the control instruction to the safety protection device; receiving a mode switching request sent by a safety protection device within a preset time length; judging whether the number of the mode switching requests is larger than a first preset value or not; if the number of the preset working modes in the mode switching request is larger than the first preset value, counting and judging whether the number of the certain preset working modes in the mode switching request is larger than a second preset value, if so, generating a control instruction corresponding to the preset working modes, and sending the control instruction to each safety protection device to switch the working modes of each safety protection device. The invention switches the working modes of a plurality of safety protection devices in the same group in a unified way through the control command so as to ensure the synchronous working of the safety protection devices and improve the reliability of the safety protection system.
Description
Technical Field
The invention relates to the technical field of safety protection of a substation area, in particular to a safety protection system of a substation, a control method, a control device and a storage medium thereof.
Background
The occupied area of the substation is large, safety-related equipment is numerous, the safe operation of the substation is the key for ensuring the stable operation of the whole power grid, and the conditions which possibly threaten the safety of the substation and cause safety accidents need to be protected.
Most substations are built in suburb positions, and line faults can be caused by nesting and rest of birds; some snakes also dig into the gap of the transformer or ac filter causing momentary failure. Therefore, the safety protection system required by power transformation can effectively drive birds, snakes, rats and the like.
When the existing safety protection device is used independently, the protection range is small, and therefore, the safety protection is performed mostly by adopting a sub-zone or simultaneously working all the safety protection devices. Because each safety protection device is independent, each safety protection device carries out the switching of mode by oneself according to its built-in procedure, that is, a plurality of safety protection devices carry out the work according to respective mode respectively.
The applicant researches and discovers that when a plurality of safety protection devices work independently, the protection operation is easily over dispersed in time and place, and therefore centralized protection cannot be achieved, namely, on one hand, the overall protection effect of a protection system is reduced, on the other hand, birds and snakes can be driven away from a certain area of a substation in the previous period, and then are driven back to the area by other safety protection devices in the later period, so that fleeing back and forth between different areas of the substation is achieved, and the potential safety hazard of the substation is larger. Therefore, the synchronous protection of each protection device is particularly important.
Therefore, how to implement the synchronous operation of the substation safety protection device to improve the reliability of the substation safety protection becomes an urgent technical problem to be solved.
Disclosure of Invention
Based on the above situation, a primary objective of the present invention is to provide a substation safety protection system, a control method, a control device, and a storage medium thereof, so as to solve the technical problem that a plurality of safety protection devices cannot guarantee synchronous operation, improve the reliability of the safety protection system, and ensure the safe operation of a substation.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a method for controlling a substation safety protection system, where the safety protection system includes a plurality of independent safety protection devices, the plurality of safety protection devices are divided into at least one group, and the safety protection devices belonging to the same group are connected to the same controller, and the method includes: step S200, acquiring a target working mode selected by a user aiming at the same group of safety protection devices, wherein the safety protection devices in the same group work in the same mode; step S300, generating a control instruction corresponding to the target working mode, and sending the control instruction to each safety protection device belonging to the same group, so that each safety protection device of the same group works in the target working mode; step S400, mode switching requests sent by any safety protection devices in the same group are respectively received within a preset time length, the mode switching requests are used for indicating that the current working mode is required to be changed, and the mode switching requests comprise: the safety protection device comprises a candidate working mode, a candidate working mode and a control module, wherein the candidate working mode is one of N preset working modes built in the safety protection device, N is an integer larger than or equal to 2, and the candidate working mode is a working mode which is currently applicable to the safety protection device sending a mode switching request; step S500, judging whether the number of the mode switching requests in a preset time length is larger than a first preset value; if the number of the mode switching requests within the preset time length is greater than the first preset value, executing step S610; step S610, counting the statistical number of the ith preset working mode in the mode switching request received in the preset time length, wherein i is an integer, and i is more than or equal to 1 and less than or equal to N; judging whether the statistical quantity is greater than a second preset value, and if so, executing the step 700; step 700, generating a control instruction corresponding to the ith preset working mode, and sending the control instruction as a new control instruction to each safety protection device of the group to switch the working mode of each safety protection device.
Preferably, in step S500, if the number of mode switching requests within the preset time period is less than or equal to a first preset value, step S620 is performed; step S620, sending a mode maintaining instruction to all the safety devices sending the mode switching request, so that the safety devices sending the mode switching request maintain the current operating mode.
Preferably, the N preset operating modes are mapped with different preset voltage intervals one by one, and each safety protection device determines each candidate operating mode based on the interval to which the current voltage value of each safety protection device belongs.
Preferably, in step S400, within a preset time period, when a mode switching request sent by the same safety protection device for multiple times is received, the currently received mode switching request is substituted for the previously received mode switching request, and the mode switching request sent by the same safety protection device for multiple times is counted as only one mode switching request.
Preferably, before step S200, the method further comprises: step S100: presenting a selectable frame for user-triggered selection in a visual manner to select a target operating mode, the selectable items of the selectable frame including: protection operation type, protection frequency and protection period duration.
In a second aspect, the present invention further provides a control device for a substation safety protection system, where the safety protection system includes a plurality of independent safety protection devices, the plurality of safety protection devices are divided into at least one group, and the safety protection devices belonging to the same group are connected to the same controller, and the control device includes: a target working mode obtaining module 200, a control instruction generating and sending module 300, a mode switching request receiving module 400, a mode switching request judging module 500, a candidate working mode counting and judging module 610, and a control instruction updating and sending module 700, wherein: the target working mode obtaining module 200 is configured to obtain a target working mode selected by a user for a same group of safety devices, where the safety devices in the same group work in the same mode; the control instruction generating and sending module 300 is configured to generate a control instruction corresponding to the target working mode acquired by the target working mode acquiring module, and send the control instruction to each safety protection device belonging to the same group, so that each safety protection device of the same group works in the target working mode; the mode switching request receiving module 400 is configured to receive, within a preset time period, mode switching requests sent by any safety protection device in the same group, where the mode switching requests are used to indicate a request to change a current working mode; the mode switch request includes: the safety protection device comprises a candidate working mode, a candidate working mode and a control module, wherein the candidate working mode is one of N preset working modes built in the safety protection device, N is an integer larger than or equal to 2, and the candidate working mode is a working mode which is currently applicable to the safety protection device sending a mode switching request; the judging module 500 is configured to judge whether the number of mode switching requests in a preset time period is greater than a first preset value; the candidate working mode counting and judging module 610 is configured to count the counted number of the ith preset working mode in the mode switching requests received in the preset time period if the judging module judges that the number of the mode switching requests in the preset time period is greater than a first preset value, where i is an integer, and i is greater than or equal to 1 and less than or equal to N; judging whether the statistical quantity is greater than a second preset value or not; the control instruction updating and sending module 700 is configured to generate a control instruction corresponding to the ith preset working mode if the preset working mode counting and determining module 610 determines that the counted number is greater than the second preset value, and send the control instruction as a new control instruction to each safety protection device of the group to switch the working mode of each safety protection device.
In a third aspect, the present invention also provides a computer storage medium on which a computer program is stored, the computer program being executed to implement the method disclosed in the first aspect.
In a fourth aspect, the present invention further provides a substation safety protection system, including: a plurality of independent safety devices, the plurality of safety devices being grouped into at least one group; the safety protection devices belong to the same group and are connected with the same controller; wherein the controller is configured to implement the method disclosed in the first aspect.
Compared with the prior art, according to the substation safety protection system and the control method, the control device and the storage medium thereof provided by the invention, the plurality of safety protection devices are divided into at least one group, the safety protection devices belonging to the same group are connected to the same controller, and after the target working mode selected by a user is obtained, the control instruction corresponding to the target working mode is sent to each safety protection device belonging to the same group, so that each safety protection device belonging to the same group works in the target working mode, namely, each safety protection device belonging to the same group works in the same target working mode, and then each safety protection device belonging to the same group performs protection work together, and the whole protection effect is improved. And after receiving a mode switching request sent by the safety protection device, judging the received working mode switching request, when the number of the received mode switching requests in a preset time length is greater than a first preset value, indicating that most safety protection devices in the same group need to switch the current working mode, further counting and judging candidate working modes in the received mode switching request, and when the counted number of a certain candidate mode is greater than a second preset value, generating a new control instruction corresponding to the candidate mode with the number greater than the second preset value, thereby controlling the uniform switching of the working modes of all the safety protection devices in the same group. Through statistics and judgment to the candidate mode, generate the unified control command that more matches with safety device in the same group, carry out the switching of operational mode to all safety device of the same group, avoided because unable synchronous working after each safety device switches by oneself, birds that lead to, snake mouse return in the electric substation inner region and flee the bigger potential safety hazard that probably comes, ensured the safe operation of electric substation, the protective effect and the reliability of safety protection system have been improved, and can compromise safety protection system's high efficiency and persistence simultaneously.
Other advantages of the present invention will be described in the detailed description, and those skilled in the art will understand the technical features and technical solutions presented in the description.
Drawings
Preferred embodiments of a substation safety protection system, a control method thereof, a control device thereof, and a storage medium according to the present invention will be described below with reference to the accompanying drawings. In the figure:
fig. 1 is a schematic diagram of a safety protection system of a substation according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of a substation safety protection system according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an example of a target operation mode selectable block of a substation safety protection system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a control device of a substation safety protection system according to an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Fig. 1 shows a substation safety protection system according to the present invention, which includes a plurality of independent safety protection devices, the plurality of safety protection devices are divided into at least one group, and the safety protection devices belonging to the same group are connected to the same controller.
It should be noted that, in this embodiment, the specific number of the installation guards is not limited. In the specific implementation process, the controllers can be respectively connected with the safety protection devices belonging to the same group through buses or wireless communication; some installation guards may also be relayed to the controller by other installation guards.
The safety protection device is a device for driving birds and snakes and mice, each safety protection device has a certain protection range, and because the area of a power substation is large and key equipment is numerous, a plurality of safety protection devices capable of working independently are adopted to work in coordination simultaneously mostly, so that the birds and the snakes and mice can be effectively driven away. The safety protection devices capable of working independently can be divided into at least one group according to the area of a substation or the distribution condition of key equipment, the safety protection devices belonging to the same group are connected to the same controller, and each safety protection device of the same group can be communicated with the controller to realize the receiving and sending of instructions and requests.
In order to implement the synchronous operation of the safety protection device of the substation and control the safety protection system of the substation, the present invention discloses a control method of the safety protection system of the substation, please refer to fig. 2, which is a flow chart of the control method of the safety protection system of the substation disclosed in the embodiment, and the control method includes:
step S200, acquiring a target working mode selected by a user aiming at the same group of safety protection devices, wherein the safety protection devices in the same group work in the same mode.
Specifically, a plurality of safety devices belonging to the same group are connected to the same controller, so that a user can select a target operation mode for the same group of safety devices. The user can select the working mode provided by the controller through touching, clicking and/or pressing keys, and the working mode selected by the user is the target working mode, which represents that the user wants each safety protection device in the same group to perform safety protection work in the mode. When the same group of safety protection devices are used for safety protection work, the safety protection devices are in the same working mode, for example, the safety protection devices work in the same protection mode at the same frequency, so that safety protection in one area of a substation or the whole substation range is realized, birds, mice and the like are prevented from escaping back and forth among all areas in the substation protection range, and the birds, the mice and the like are effectively driven away. And acquiring the selection of the user for the target working mode of the same group of safety protection devices by reading the information corresponding to each selected working mode, and generating a subsequent control instruction.
In this embodiment, the operation mode may include the operation category of safety protection, such as ultrasonic wave, flashing light, audible sound, etc.; the protection frequency and the protection period duration of the safety protection device can be further included. See, in particular, the description below.
As a preferred embodiment, before executing step S200, the method further includes:
step S100: selectable boxes for user-triggered selection are presented in a visualized manner.
The selectable frame provided by this embodiment may be used for a user to select a target operating mode, and the selectable items of the selectable frame include: protection operation type, protection frequency and protection period duration.
Specifically, please refer to fig. 3, which is a working mode selectable frame for a user to select according to the present embodiment. In order to facilitate the selection of the target working modes of the same group of safety protection devices by a user, the working modes are displayed through a screen, a selection frame is set for each working mode, and the user can conveniently select the target working modes through touch, click and/or key pressing.
In particular embodiments, the operational mode may include an operational category of the safety shield apparatus including at least one of ultrasonic, audible, flashing lights. Ultrasonic waves are used for interfering and stimulating and destroying the nervous system and the physiological system of the birds and the snakes and rats, so that the birds and the snakes and rats are physiologically disordered to achieve the final purpose of safety protection. The flashing light causes birds and snakes to be frightened through flashing high-brightness LED light, so as to realize the purpose of safety protection. The bird and the snake mouse can be heard, and the bird and the snake mouse can be repelled by arranging the audio file which enables the bird and the snake mouse to be frightened or frightened. The working mode further comprises protection frequency, protection period duration and the like, namely how often the safety protection device is started at intervals, how long the safety protection device is started to work at each time, specifically, the working mode can be set according to the actual condition of the substation in minutes or hours, and can be adjusted according to different conditions.
Wherein, the ultrasonic wave can change the frequency of the ultrasonic wave periodically according to a preset changing scheme, for example, the frequency difference is 1KHz, and the frequency is increased from 15KHz to 35KHz within 30 seconds; the method can also randomly generate a frequency in the initial working period, then change the frequency periodically, and the user selects the most suitable ultrasonic frequency by analyzing the protection effect under different frequencies within a period of time.
The audio files capable of hearing sounds can comprise shotgun sounds, gunshot sounds, sniper gun sounds, cannon sounds, firecracker sounds, dog sounds, hawk sounds, wild animal sounds, bird sounds and the like, and a user can select the audio files in the audible sounds, set the audio files according to time and play the selected different audio files alternately. In addition, the user can update the audio files in the audible sound regularly, so that the aim of making birds and snakes and mice difficult to adapt is further fulfilled.
The flashing light comprises red light and blue light, and a user can select to use one of the red light and the blue light and can also select to flash simultaneously or alternatively.
The target working mode selection box is presented in a visual mode, so that a user can know the selected working mode more visually and clearly, and the method is simple to operate and easy to master. The working mode provides a plurality of different protection modes, and birds and snakes can be stimulated in many ways by combining the plurality of different protection modes, so that a better protection effect is achieved; the protection frequency and the protection period duration can be selected and flexibly adjusted according to the actual situation of the substation, so that the electric quantity consumption and the protection efficiency of the safety protection device are more reasonably controlled.
And step S300, generating a control instruction corresponding to the target working mode, and sending the control instruction to each safety protection device belonging to the same group. In this embodiment, the control instruction corresponding to the target operating mode is sent to each safety protection device belonging to the same group, so that each safety protection device of the same group can operate in the target operating mode.
Specifically, after the target working mode selected by the user is acquired, the control instruction corresponding to the target working mode is generated according to the mapping relationship between the working mode and the control instruction, and information in the control instruction may include the operation type, the protection frequency, the protection period duration, and the like of the safety protection device in the target working mode. After the control instruction corresponding to the target working mode is generated, the control instruction is sent to each safety protection device belonging to the same group at the same time, and the control instruction can be transmitted in any communication mode.
And the safety protection device replies confirmation information after receiving the control instruction corresponding to the target working mode, and performs safety protection work according to the control instruction corresponding to the target working mode. The multiple safety protection devices in the same group can also communicate with each other, and when a certain safety protection device receives a control instruction corresponding to the target working mode, the control instruction can be forwarded to other safety protection devices in the same group. When communication between the controller and a certain safety protection device is in trouble, such as weak signal strength, timely receiving of the control instruction can be achieved through communication between safety protection devices in the same group. In order to realize the simultaneous starting and/or the same-frequency operation of the same group of safety protection devices, a clock synchronous with the controller can be arranged in each safety protection device, and after receiving the control instruction, the safety protection devices operate according to the starting time, the protection period duration and the like specified by the control instruction, so that the safety protection devices in the same group can simultaneously operate in the target operation mode selected by the user.
By generating the control instruction corresponding to the target working mode and sending the control instruction to each safety protection device belonging to the same group, each safety protection device of the same group synchronously works in the target working mode selected by the user, so that safety protection work is carried out according to the will of the user.
Step S400, mode switching requests sent by any safety protection devices in the same group are respectively received within a preset time length, and the mode switching requests are used for indicating that the current working mode is required to be changed.
Specifically, a program for judging whether the working mode needs to be switched is arranged in the safety protection device, and the program arranged in the safety protection device judges whether the currently collected parameters are matched with the current working mode by establishing a corresponding relation between the relevant parameters of the safety protection device and the working mode, collecting the relevant parameters in the working process of the safety protection device and judging whether the currently collected parameters are matched with the current working mode. If not, the safety protection device judges that the working mode needs to be switched, at this time, the safety protection device generates a mode switching request and sends the mode switching request to the controller, and the mode switching request indicates that the current working mode is required to be changed, namely the current working mode is not used any more. The mode switching request of each safety protection device may be sent immediately after the judgment is made, or may be sent at a predetermined time.
The method comprises the steps of receiving a mode switching request sent by safety protection devices in the same group, wherein a plurality of safety protection devices in the same group possibly send the mode switching request in a period of time, and therefore, receiving the mode switching request sent by any safety protection device in the same group in a preset time length. A mode switch request corresponds to each of the safety guards, i.e., it may be determined which safety guard sent the mode switch request. If the same safety protection device sends the mode switching request for multiple times within a period of time, the mode switching request of the same safety protection device can be updated according to the corresponding relationship between the mode switching request and the safety protection device.
The mode switch request includes: and the candidate working mode is one of N preset working modes built in the safety protection device, wherein N is an integer larger than or equal to 2, and the candidate working mode is the working mode which is currently applied by the safety protection device sending the mode switching request.
As a preferred embodiment, the N preset operation modes are mapped with different preset voltage intervals one by one, and each safety protection device determines its own candidate operation mode based on the interval to which its own current voltage value belongs.
The preset operation mode of the safety protection device is described in the following with specific embodiments, it should be noted that the voltage values in the embodiments are only exemplary for easy understanding and are not limiting.
The transformer substation is mostly built in suburbs and has a large area, and the safety protection device is mostly powered by solar energy in a mode of charging the storage battery. The voltage of the storage battery can represent the quantity of electric quantity to a certain extent, the voltage value interval corresponding to the electric quantity which can normally work of the storage battery is 11V-12V, when the voltage is 11V, the low electric quantity is represented, and at the moment, the storage battery needs to be charged; when the voltage is 12V, the full charge is represented, and the normal and high-efficiency operation can be realized. The inside program of safety device charges, discharges according to the self voltage value control of gathering, and the voltage value when safety device equals 12V and stops solar charging, avoids the harm that overcharge brought the battery, and the voltage value when safety device equals 11V stop work, avoids the harm that overdischarge brought the battery of needs. The internal program of the safety protection device is further configured to divide a voltage value range in which the safety protection device can normally operate into different voltage intervals, and set up an operating mode matched with each voltage interval, for example, set up the voltage interval and the operating mode according to table 1.
TABLE 1 correspondence between voltage intervals and operating modes
The voltage value range that the safety protection device can normally work is divided into three voltage intervals of low (11.0V-11.2V), medium (11.3V-11.6V) and high (11.7V-12.0V), each interval corresponds to a working mode, the working mode that the high voltage interval corresponds can be a high-efficiency working mode with high power consumption, and the working mode that the low voltage interval corresponds can be a low power consumption working mode with long-time continuous work.
After setting for preset operating mode, safety device is at the in-process of work, regularly gather the magnitude of voltage of self, when the magnitude of voltage who gathers does not match with the operating mode of work at present, for example, because solar charging speed is slower, and safety device working process electric quantity consumption is faster, charging speed is slower than power consumption speed, after safety device works a period, the magnitude of voltage that the safety device that can appear gathering has been in the medium voltage interval, but current safety device works under the operating mode that the high voltage interval corresponds, this moment for magnitude of voltage does not match with current operating mode, safety device then generates the mode switching request under this condition, the information that the mode switching request includes has: converting the current working mode, wherein the candidate working mode is a working mode corresponding to the medium-voltage interval; and sends the mode switch request to the controller.
By receiving the mode switching request sent by any safety protection device connected with the safety protection device, reliable data are provided for the subsequent judgment of the switching of the working modules and the generation of new control instructions.
Step S500, determining whether the number of mode switching requests in a preset duration is greater than a first preset value.
Specifically, the number of received mode switching requests is counted while receiving the mode switching requests sent by each safety protection device. Counting the number of the mode switching requests according to the number of the safety protection devices sending the mode switching requests, namely counting the number of the mode switching requests sent by one safety protection device as 1 when counting the number of the mode switching requests; and sending mode requests by the same safety protection device for multiple times within preset time, wherein the number of the mode switching requests is counted only once during statistics. The preset time is a preset equal time period, can be set according to minutes or hours, and can be manually adjusted when the preset time needs to be changed according to the actual requirements of the substation. When a mode switching request is received, determining which safety protection device the mode switching request comes from according to the corresponding relation between the mode switching request and the safety protection device, if the mode switching request which is received before does not come from the safety protection device, adding 1 to the number of the mode switching requests, and reserving the mode switching request; if the mode switching request from the safety protection device exists, the number of the mode switching requests is unchanged, the mode switching request received later is replaced by the mode switching request received earlier according to the sequence of the receiving time, and only the mode switching request sent by each safety protection device for the last time is reserved.
The number of mode switching requests from the safety devices received within a preset time period is compared with a first preset value, which is referred to in this embodiment as a first preset value, and can be set according to the total number of safety devices in the same group, e.g., 50% or more of the total number of safety guards in the same set, the first preset value is set to, the most applicable working modes of the safety protection devices represent the working modes applicable to the same group of safety protection devices, the "applicable operation mode" herein refers to an operation mode that is most matched by the safety protection device based on the operation parameters such as the range to which the respective current voltage value belongs (if the remaining power of the safety protection device is low, the low power consumption operation mode is applicable), that is, if the "applicable mode of operation" is not used, the normal operation of the safety shield apparatus may be compromised (e.g., causing the apparatus to malfunction). Judging whether the number of the received mode switching requests in the preset time length is larger than a first preset value or not, if the number of the received mode switching requests is larger than the first preset value at any time in the preset time length, executing step S610, and if the number of the received mode switching requests is still smaller than or equal to the first preset value until the preset time length is finished, executing step S620.
Step S610, counting the statistical number of the i-th preset operating mode in the mode switching request received within the preset time, and determining whether the statistical number is greater than a second preset value.
Specifically, according to the fact that the mode switching request received within the preset time length includes the currently applicable working mode (candidate working mode) of the safety protection device, the statistical number of a certain candidate working mode in the mode switching request received within the preset time length is counted, and whether the statistical number of the candidate working mode is larger than a second preset value or not is judged. The second predetermined value may be less than or equal to the first predetermined value, such as being set to be 50% or more of the total number of safety devices in the same group, and the second predetermined value is set to represent the currently normal working mode of the same group of safety devices in most of the currently more suitable working modes of the safety devices requiring the working mode change.
I is an integer, i is more than or equal to 1 and less than or equal to N; if the statistical number is greater than the second preset value, step 700 is performed.
And if the statistic value of a certain candidate mode in the received mode switching request is larger than a second preset value, generating a new control instruction corresponding to the candidate working mode, and sending the new control instruction to each safety protection device in the same group, so that all the safety protection devices in the same group are switched to the currently more applicable candidate working mode according to the new instruction. The new control command referred to in the present embodiment is a control command corresponding to a currently more applicable operation mode.
If the statistic value of various candidate modes in the received mode switching request is smaller than or equal to the second preset value, the working mode with the lowest power consumption in the received mode switching request can be received to work. Specifically, a new control instruction corresponding to the operation mode with the lowest power consumption in the received mode switching request may be generated, and the new control instruction may be sent to each safety protection device in the same group, so that each safety protection device performs protection operation in the operation mode with the lowest power consumption, and the sustainable operation time of each safety protection device may be prolonged.
By counting the mode switching requests of the same group at a preset time length and comparing the counted mode switching requests with a first preset value, when the number of the mode switching requests is larger than the first preset value, a new control instruction is generated and sent to all the safety protection devices in the same group, and therefore unified switching of working modes is achieved. All safety protection devices in the same group are ensured to work in the same working mode all the time; the working mode of each safety protection device in the same group is effectively prevented from being automatically switched, so that the working of the safety protection devices in the same group is asynchronous, and the protection effect of the protection system is influenced; the device avoids the possible back-and-forth fleeing of birds and snakes and rats in the range of the same group of protection devices in the substation when the device works simultaneously, and improves the protection effect and reliability of the safety protection system.
And moreover, the switching willingness of each safety protection device in the same group is counted, and then the control instruction is generated according to the counting result, so that a new control instruction is formulated more accurately, the new control instruction can ensure that the safety protection devices in the same group can be switched to the working mode meeting the actual requirement, and the high efficiency and the durability of the safety protection system are considered.
Step S620, sending a mode maintaining instruction to all the safety protection devices that have sent the mode switching request, so as to maintain the current operating mode.
Specifically, if the number of the received mode switching requests is less than or equal to the first preset value after the preset time length is finished, at this time, a mode maintaining instruction is sent to each safety protection device in the plurality of safety protection devices which send the mode switching requests, so that the plurality of safety protection devices which need to perform the working mode switching maintain the current working mode, the next preset time length is started, the received mode switching requests are cleared, and the receiving and judging work of the mode switching requests of the next preset time length is executed.
It can be understood that, since the safety protection devices in the same group are uniformly controlled by the controller, each safety protection device cannot automatically switch the working mode when not receiving the control instruction, and therefore the effect of not sending the instruction and sending the maintaining instruction is the same, or the method can choose not to send the maintaining instruction, ignore the received mode switching request, directly start the next preset time length, clear the received mode switching request, and execute the receiving and judging work of the mode switching request of the next preset time length. Therefore, it should be noted that, for embodiments in which no instruction is issued, it should be considered as an equivalent alternative to issuing a maintenance instruction.
When the working mode switching condition is not met, the maintenance instructions are sent to the safety protection devices sending the mode switching requests, so that the plurality of safety protection devices sending the mode switching requests can maintain the current working mode, namely, protection is carried out according to the working mode corresponding to the highest voltage interval where most of the safety protection devices in the same group are located, protection is carried out in the best working mode in the longest time of the safety protection devices in the same group, and the high efficiency of a safety protection system is guaranteed.
As a preferred embodiment, in step S400, when a mode switching request issued by the same safety protection device for multiple times is received within a preset time period, the currently received mode switching request is substituted for the previously received mode switching request.
Specifically, when a mode switching request is received, which safety protection device the mode switching request comes from is determined according to the corresponding relation between the mode switching request and the safety protection device. For example, when the number of the received mode switching requests in the last preset time period is less than or equal to the first preset value, the safety protection device sending the mode switching request continues to maintain the working mode in the last preset time period according to the maintaining instruction to perform the work in the preset time period. The safety protection device which sends the mode switching request at the last preset time length can send the mode switching request again at the time of just entering the preset time length for requesting to change the working mode; the safety protection device still works according to the working mode of the previous preset duration within the preset duration, the electric quantity of the safety protection device continues to be consumed within the preset duration, the voltage interval within the previous preset duration is the middle voltage interval at the moment, the working mode is the working mode corresponding to the high voltage interval, at the beginning of the preset duration, the safety protection device sends out a mode switching request for switching to the working mode corresponding to the middle voltage interval, due to the continuous consumption of the electric quantity, the voltages collected at the middle and later periods of the preset duration are already in the low voltage interval, the working mode is still the working mode corresponding to the high voltage interval, and at the moment, the safety protection device sends out a mode switching request for switching the working mode to the working mode corresponding to the low voltage interval.
When a mode switching request is received, determining which safety protection device the mode switching request comes from according to the corresponding relation between the mode switching request and the safety protection device, if the mode switching request from the safety protection device exists, keeping the statistical number of the switching requests unchanged, replacing the currently received mode switching request with the previously received mode switching request, and only keeping the last mode switching request sent by each safety protection device.
Only the last mode switching request is reserved, a large amount of data accumulation in the controller is avoided, and the latest mode switching request of the safety protection device can be determined more quickly, so that the mode switching request can be subjected to statistical analysis quickly and accurately, and a new control instruction can be determined.
It is understood that, since the method embodiment and the apparatus embodiment are different manifestations of the same technical concept, the content of the method embodiment part in the present application should be synchronously adapted to the apparatus embodiment part, and is not described herein again.
The present invention further provides a control device for a substation safety protection system, referring to fig. 4, which is a schematic structural diagram of a control device of a substation safety protection system disclosed in this embodiment, the safety protection system includes a plurality of independent safety protection devices, the plurality of safety protection devices are divided into at least one group, the safety protection devices belonging to the same group are connected to the same controller, and the control device includes: a target working mode obtaining module 200, a control instruction generating and sending module 300, a mode switching request receiving module 400, a mode switching request judging module 500, a candidate working mode counting and judging module 610, and a control instruction updating and sending module 700, wherein:
the target working mode obtaining module 200 is configured to obtain a target working mode selected by a user for a same group of safety devices, where the safety devices in the same group work in the same mode;
the control instruction generating and sending module 300 is configured to generate a control instruction corresponding to the target working mode acquired by the target working mode acquiring module, and send the control instruction to each safety protection device belonging to the same group, so that each safety protection device of the same group works in the target working mode;
the mode switching request receiving module 400 is configured to receive, within a preset time period, mode switching requests sent by any safety protection device in the same group, where the mode switching requests are used to indicate a request to change a current working mode; the mode switch request includes: the safety protection device comprises a candidate working mode, a candidate working mode and a control module, wherein the candidate working mode is one of N preset working modes built in the safety protection device, N is an integer larger than or equal to 2, and the candidate working mode is a working mode which is currently applicable to the safety protection device sending a mode switching request;
the judging module 500 is configured to judge whether the number of mode switching requests in a preset time period is greater than a first preset value;
the candidate working mode counting and judging module 610 is configured to count the counted number of the ith preset working mode in the mode switching requests received in the preset time period if the judging module judges that the number of the mode switching requests in the preset time period is greater than a first preset value, where i is an integer, and i is greater than or equal to 1 and less than or equal to N; judging whether the statistical quantity is greater than a second preset value or not;
the control instruction updating and sending module 700 is configured to generate a control instruction corresponding to the ith preset working mode if the preset working mode counting and determining module 610 determines that the counted number is greater than the second preset value, and send the control instruction as a new control instruction to each safety protection device of the group to switch the working mode of each safety protection device.
The present invention also provides a computer storage medium having stored thereon a computer program to be executed to implement part or all of the steps of any of the methods as recited in the above method embodiments.
The invention also provides a safety protection system for the substation, which comprises:
the safety protection devices are divided into at least one group, and the safety protection devices belonging to the same group are connected to the same controller; a controller for implementing some or all of the steps of any of the methods described in the method embodiments above.
Compared with the prior art, according to the substation safety protection system and the control method, the control device and the storage medium thereof provided by the invention, the plurality of safety protection devices are at least divided into one group, the safety protection devices belonging to the same group are connected to the same controller, and after the target working mode selected by a user is obtained, the control instruction corresponding to the target working mode is sent to each safety protection device belonging to the same group, so that each safety protection device belonging to the same group works in the target working mode, that is, each safety protection device belonging to the same group works in the same target working mode, and then each safety protection device belonging to the same group performs protection work together, and the whole protection effect is improved. And after receiving a mode switching request sent by the safety protection device, judging the received working mode switching request, when the number of the received mode switching requests in a preset time length is greater than a first preset value, indicating that most safety protection devices in the same group need to switch the current working mode, further counting and judging candidate working modes in the received mode switching request, and when the counted number of a certain candidate mode is greater than a second preset value, generating a new control instruction corresponding to the candidate mode with the number greater than the second preset value, thereby controlling the uniform switching of the working modes of all the safety protection devices in the same group. Through statistics and judgment to the candidate mode, generate the unified control command that more matches with safety device in the same group, carry out the switching of operational mode to all safety device of the same group, avoided because unable synchronous working after each safety device switches by oneself, birds that lead to, snake mouse return in the electric substation inner region and flee the bigger potential safety hazard that probably comes, ensured the safe operation of electric substation, the protective effect and the reliability of safety protection system have been improved, and can compromise safety protection system's high efficiency and persistence simultaneously.
It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.
Claims (8)
1. A control method of a safety protection system of a substation, the safety protection system comprises a plurality of independent safety protection devices, the safety protection devices are divided into at least one group, the safety protection devices belonging to the same group are connected to the same controller, and the control method comprises the following steps:
step S200, acquiring a target working mode selected by a user aiming at the same group of safety protection devices, wherein the safety protection devices in the same group work in the same mode;
step S300, generating a control instruction corresponding to the target working mode, and sending the control instruction to each safety protection device belonging to the same group, so that each safety protection device of the same group works in the target working mode;
step S400, respectively receiving mode switching requests sent by any safety protection devices in the same group within a preset time length, wherein the mode switching requests are used for indicating that the current working mode is required to be changed;
wherein the mode switch request comprises: a candidate working mode, wherein the candidate working mode is one of N preset working modes built in the safety protection device, N is an integer larger than or equal to 2, and the candidate working mode is a working mode currently applicable to the safety protection device sending the mode switching request;
step S500, judging whether the number of the mode switching requests in a preset time length is larger than a first preset value; if the number of the mode switching requests within the preset time length is greater than the first preset value, executing step S610;
step S610, counting the number of statistics affiliated to the ith preset working mode in the mode switching request received in the preset time length, wherein i is an integer, and i is more than or equal to 1 and less than or equal to N; judging whether the statistical quantity is greater than a second preset value, and if the statistical quantity is greater than the second preset value, executing step 700;
step 700, generating a control instruction corresponding to the ith preset working mode, and sending the control instruction as a new control instruction to each safety protection device of the group to switch the working mode of each safety protection device.
2. The method for controlling a safety protection system of a substation according to claim 1, wherein in step S500, if the number of mode switching requests within a preset time duration is less than or equal to a first preset value, step S620 is performed;
step S620, sending a mode maintaining instruction to all the safety protection devices sending the over-mode switching request, so that the safety protection devices sending the over-mode switching request maintain the current working mode.
3. The control method of the substation safety protection system according to claim 1, wherein the N preset operation modes are mapped one-to-one with different preset voltage intervals, and each safety protection device determines a respective candidate operation mode based on the interval to which the respective current voltage value belongs.
4. A control method of a substation safety protection system according to any one of claims 1 to 3, wherein in step S400, when a mode switching request sent by the same safety protection device for multiple times is received within a preset time period, the currently received mode switching request is substituted for the previously received mode switching request, and the mode switching request sent by the same safety protection device for multiple times is counted as only one mode switching request.
5. A method for controlling a substation safety protection system according to any one of claims 1 to 3, further comprising, before step S200: step S100: presenting a selectable box for user-triggered selection in a visualized manner to select the target operating mode, wherein the selectable items of the selectable box comprise: protection operation type, protection frequency and protection period duration.
6. The utility model provides a controlling means of transformer substation safety protection system, the safety protection system includes a plurality of independent safety protection devices, its characterized in that, a plurality of safety protection devices are divided into at least a set ofly, and the safety protection device who belongs to same group connects at same controller, controlling means includes:
the system comprises a target working mode acquisition module (200) for acquiring a target working mode selected by a user aiming at the same group of safety protection devices, wherein the safety protection devices in the same group work in the same mode;
a control instruction generating and sending module (300) for generating a control instruction corresponding to the target working mode acquired by the target working mode acquiring module and sending the control instruction to each safety protection device belonging to the same group, so that each safety protection device of the same group works in the target working mode;
a mode switching request receiving module (400) for respectively receiving a mode switching request sent by any safety protection device in the same group within a preset time length, wherein the mode switching request is used for indicating a request for switching a current working mode;
the mode switch request includes: a candidate working mode, wherein the candidate working mode is one of N preset working modes built in the safety protection device, N is an integer larger than or equal to 2, and the candidate working mode is a working mode currently applicable to the safety protection device sending the mode switching request;
the mode switching request judging module (500) is used for judging whether the number of the mode switching requests in a preset time length is larger than a first preset value or not;
a candidate working mode counting and judging module (610) for counting the statistical number of the ith preset working mode in the mode switching request received in the preset time length if the mode switching request judging module (500) judges that the number of the mode switching requests in the preset time length is greater than a first preset value, wherein i is an integer, and i is more than or equal to 1 and less than or equal to N; judging whether the statistical quantity is greater than a second preset value or not;
and the control instruction updating and sending module (700) is used for generating a control instruction corresponding to the ith preset working mode if the counting number is larger than a second preset value according to the preset working mode counting and judging module (610), and sending the control instruction as a new control instruction to each safety protection device of the group so as to switch the working mode of each safety protection device.
7. A computer storage medium on which a computer program is stored, the computer program being executable to implement the method of any one of claims 1 to 5.
8. A substation safety protection system, comprising:
a plurality of safety devices separated into at least one group;
the safety protection devices belong to the same group and are connected with the same controller; wherein the controller is configured to implement the method of any one of claims 1-5.
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