CN117368712B - Device, system and method for detecting equipment state of power relay protection device - Google Patents
Device, system and method for detecting equipment state of power relay protection device Download PDFInfo
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Abstract
The invention discloses a device, a system and an application method for detecting the state of equipment of a power relay protection device. The invention can be used for detecting the equipment state of the power relay protection device, has simple structure, flexible operation and high operation automation degree, and can effectively meet the requirement of synchronous detection operation of the operation state of the power relay protection device in various circuit systems by setting system connection and detection terminal structure setting.
Description
Technical Field
The invention relates to the technical field of power transmission and transformation, in particular to a device, a system and an application method for detecting the state of power relay protection equipment.
Background
Important equipment for ensuring the running stability and reliability of the power transmission and transformation system is arranged in the power relay protection device, but due to factors such as the running state difference, the distribution position environment difference, the service life of the power relay protection device, the equipment quality and the like of a circuit connected with the power relay protection device, the conditions of seriously influencing the power transmission and transformation quality such as overload, insufficient voltage, phase loss, high temperature and the like are extremely easy to occur in the running of the circuit connected with the power relay protection device; on the other hand, equipment faults and other conditions are very easy to occur in the operation process of the power relay protection device, and because the distribution range of the power relay protection device is wide and the application range is wide, the operation state of each power relay protection device is difficult to accurately monitor by current staff, and the operation state of each power relay protection device cannot be accurately estimated and predicted.
Disclosure of Invention
The invention aims to solve the technical problems: aiming at the problems in the prior art, the invention provides a device, a system and a method for detecting the state of the power relay protection device, which can be used for detecting the state of the power relay protection device, and have the advantages of simple structure, flexible operation and high degree of automation in operation, and can effectively meet the requirement of synchronous detection operation of the running state of the power relay protection device in various circuit systems by setting system connection and detection terminal structure setting.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a power relay protection device equipment state detection device, includes insulating location base and installs the shell that bears on insulating location base, bear the shell and have upper portion open-ended installation cavity, the panel is installed to upper portion opening part, be equipped with in the installation cavity and bear the backplate, it is equipped with drive control circuit and detection circuit on the backplate to bear, drive control circuit and detection circuit electrical connection, detection circuit's auxiliary connection terminal and by detection power relay protection device electrical connection in order to be arranged in detecting by the electric signal of detection power relay protection device.
Optionally, the detection circuit comprises at least one of a voltage detection circuit, a current detection circuit, a temperature and humidity detection circuit, an overload detection circuit and a phase failure detection circuit.
Optionally, the both sides of bearing shell are equipped with the slip cap, and each slip cap corresponds an insulation positioning base, be equipped with rotatable adjusting screw on the insulation positioning base, threaded connection between adjusting screw and the slip cap that corresponds, just the outside of slip cap is equipped with the locking bolt that is used for locking or loosening adjusting screw and slip cap.
Optionally, the insulating positioning base includes the insulating swivel nut of cover on adjusting screw, the both ends of insulating swivel nut respectively are equipped with an insulating backing plate, be equipped with on the insulating backing plate with insulating swivel nut coaxial distribution and the connecting hole of intercommunication, and the connecting hole outside of an insulating backing plate is equipped with elastic gasket and the coupling nut that runs through insulating swivel nut, the connecting hole outside of another insulating backing plate is equipped with elastic gasket and the positioning nut that runs through insulating swivel nut to fix insulating swivel nut and insulating backing plate centre gripping as an organic whole through coupling nut and positioning nut.
Optionally, a temperature and humidity sensor is arranged on the insulating positioning base, and the temperature and humidity sensor is electrically connected with the detection circuit.
Optionally, a man-machine interaction module is arranged on the panel, the man-machine interaction module is electrically connected with the driving control circuit, the man-machine interaction module comprises one or more of a keyboard, a touch screen and a display screen, a communication port is arranged on the panel, and the communication port is electrically connected with the driving control circuit.
Optionally, the adjusting screw is connected with the ground electrode, the ground electrode includes terminal, conductive contact and conductive spring, and wherein terminal upper half inlays under the carrier shell terminal surface and with carrier shell terminal surface perpendicular distribution under, terminal surface is connected and coaxial distribution with conductive contact through conductive spring simultaneously, and conductive contact terminal surface is located insulating positioning base terminal surface top under.
In addition, the invention also provides a power relay protection device equipment state system, which comprises a server unit, a communication gateway, a control terminal and a plurality of detection terminals, wherein the control terminal and the plurality of detection terminals are respectively connected with the server unit through the communication gateway.
Optionally, the server unit includes a comprehensive data processing server and a cloud computing processing server, the comprehensive data processing server is connected with the cloud computing processing server through a communication gateway, and a communication network between the communication gateway and the cloud computing processing server is the internet.
In addition, the invention also provides an application method of the power relay protection device equipment state detection system, which comprises the following steps:
S101, acquiring an environmental temperature and humidity signal and an electrical signal of a detected power relay protection device through a detection terminal, wherein the electrical signal comprises a voltage signal, a current signal, an overload detection signal and a phase failure detection signal;
S102, normalizing an environment temperature and humidity signal and inputting the environment temperature and humidity signal into a trained first BP neural network to obtain an influence index of the environment temperature and humidity on the running state of the detected power relay protection device, wherein the first BP neural network is trained to establish a mapping relation between the normalized environment temperature and humidity signal and the influence index of the environment temperature and humidity on the running state of the detected power relay protection device; the electrical signals are input into a trained second BP neural network after being normalized, so that influence indexes of the electrical signals on the running state of the detected power relay protection device are obtained, and the second BP neural network is trained to establish a mapping relation between the normalized electrical signals and the influence indexes of the electrical signals on the running state of the detected power relay protection device;
S103, the influence indexes of the environment temperature and humidity on the running state of the detected power relay protection device and the influence indexes of the electric signals on the running state of the detected power relay protection device are utilized to obtain the running state comprehensive evaluation result of the detected power relay protection device by using a trained running state comprehensive evaluation model, and the running state comprehensive evaluation model is trained to establish a mapping relation between the two influence indexes and the running state comprehensive evaluation result.
Compared with the prior art, the invention has the following advantages: the invention discloses a power relay protection device equipment state detection device, which comprises an insulation positioning base and a bearing shell arranged on the insulation positioning base, wherein the bearing shell is provided with an installation cavity with an upper opening, a panel is arranged at the upper opening, a bearing backboard is arranged in the installation cavity, a driving control circuit and a detection circuit are arranged on the bearing backboard, the driving control circuit is electrically connected with the detection circuit, and an auxiliary wiring terminal of the detection circuit is electrically connected with a detected power relay protection device for detecting an electric signal in the detected power relay protection device. The invention can effectively meet the requirement of synchronous detection operation of the running state of the power relay protection device in various circuit systems, has high detection data precision and detection efficiency, can effectively meet the requirement of high-efficiency and accurate evaluation of the running state of the power relay protection device, and simultaneously has good expansion capability and redundancy anti-fault capability in running.
Drawings
Fig. 1 is a schematic structural diagram of a device for detecting a status of a power relay protection device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a state detection system of a power relay protection device according to an embodiment of the present invention.
Fig. 3 is a flow chart of an application method of a power relay protection device status detection system in an embodiment of the invention.
Legend description: 1. a comprehensive data processing server; 2. cloud computing processing server; 3. a communication gateway; 4. a communication network; 5. detecting a terminal; 501. a sliding sleeve; 502. a panel; 503. a locking bolt; 51. an insulating positioning base; 511. an insulating backing plate; 512. an insulating screw sleeve; 513. a coupling nut; 514. positioning a nut; 515. an elastic pad; 516. a temperature and humidity sensor; 517. a connection hole; 52. adjusting a screw; 54. a carrying case; 55. a load-bearing back plate; 56. a drive control circuit; 561. a man-machine interaction module; 57. a detection circuit; 58. an auxiliary connection terminal; 59. a communication port; 6. and controlling the terminal.
Detailed Description
As shown in fig. 1, the device for detecting the status of the power relay protection device according to this embodiment includes an insulation positioning base 51 and a carrying case 54 mounted on the insulation positioning base 51, the carrying case 54 has an installation cavity with an upper opening, a panel 502 is mounted at the upper opening, a carrying backboard 55 is disposed in the installation cavity, a driving control circuit 56 and a detecting circuit 57 are disposed on the carrying backboard 55, the driving control circuit 56 and the detecting circuit 57 are electrically connected, and an auxiliary connection terminal 58 of the detecting circuit 57 is electrically connected with the detected power relay protection device for detecting an electrical signal in the detected power relay protection device.
The power relay protection device equipment state detection device can effectively meet the requirement of synchronous detection operation of the power relay protection device operation state in various circuit systems, is high in detection data precision and detection efficiency, can effectively meet the requirement of high-efficiency and accurate assessment of the power relay protection device operation state, and simultaneously has good expansion capacity and redundancy anti-fault capacity in operation. In this embodiment, the bearing shell 54 has a U-shaped groove-shaped cross section, the panel 502 is wrapped outside the upper end surface of the bearing shell 54 and forms a closed cavity structure with the bearing shell 54, the number of the edge positioning bases 51 is four, so that the center lines at the bottom of the bearing shell 54 are symmetrically distributed, the edge positioning bases are connected with the outer surface of the side wall of the bearing shell 54 through the adjusting screw 52, and the upper end surface of the insulation positioning base 51 is located below the bottom of the bearing shell 54 and has a spacing of 0-100 mm from the bottom of the bearing shell 51. Compared with the traditional detection device, the device for detecting the state of the power relay protection device can effectively improve the integration and modularization degree of the device and improve the operation safety of the device and the purposes of flexibility, convenience and universality of the device.
In the present embodiment, the detection circuit 57 includes a voltage detection circuit, a current detection circuit, a temperature and humidity detection circuit, an overload detection circuit, and a phase failure detection circuit, and based on the above-described teaching, the detection circuit 57 may be configured by using some of the circuits in the case of deterioration in affordable performance.
In order to realize the height adjustment of the power relay protection device equipment state detection device in this embodiment to meet the needs of different power relay protection devices, as shown in fig. 1, sliding sleeves 501 are arranged on two sides of a bearing shell 54 in this embodiment, each sliding sleeve 501 corresponds to one insulation positioning base 51, a rotatable adjusting screw rod 52 is arranged on the insulation positioning base 51, the adjusting screw rod 52 is in threaded connection with the corresponding sliding sleeve 501, and a locking bolt 503 for locking or unlocking the adjusting screw rod 52 and the sliding sleeve 501 is arranged outside the sliding sleeve 501. In this embodiment, the adjusting screw 52 is slidably connected with the outer side surface of the bearing shell 54 through a sliding block 501, the moving direction of the sliding block 501 is parallel to the bottom of the bearing shell 54, the sliding block 501 is connected with the bearing shell 54 through a positioning pin 503, the driving control circuit 56 and the detecting circuit 57 are embedded in the bearing shell 54 and are connected with the bottom of the bearing shell 54 through a bearing backboard 55, the driving control circuit 56 is electrically connected with the detecting circuit 57, the communication port 59 and at least one auxiliary connecting terminal 58 respectively, the detecting circuit 57 is electrically connected with a plurality of auxiliary connecting terminals 58, the driving control circuit 56 and the detecting circuit 57 are electrically connected with a grounding electrode 53 respectively, the grounding electrode 53 is located outside the bearing shell 54 and is connected with the bottom of the bearing shell 54, and the auxiliary connecting terminals 58 and the communication port 59 are embedded in the upper end surface of the panel 502.
As shown in fig. 1, the insulation positioning base 51 of the present embodiment includes an insulation screw sleeve 512 sleeved on the adjusting screw 52, two insulation base plates 511 are respectively provided at two ends of the insulation screw sleeve 512, connection holes 517 coaxially distributed and communicated with the insulation screw sleeve 512 are provided on the insulation base plates 511, an elastic gasket 515 and a connection nut 513 penetrating the insulation screw sleeve 512 are provided at the outer side of the connection hole 517 of one insulation base plate 511, an elastic gasket 515 and a positioning nut 514 penetrating the insulation screw sleeve 512 are provided at the outer side of the connection hole 517 of the other insulation base plate 511, and the insulation screw sleeve 512 and the insulation base plate 511 are clamped and fixed as a whole through the connection nut 513 and the positioning nut 514. When equipment is installed and assembled, the electric power relay protection device to be detected is subjected to cladding positioning through a hole between the insulating positioning base 51 and the bottom of the bearing shell 54, meanwhile, the working position of the insulating positioning base 51 is adjusted through the adjusting screw 52 and the sliding sleeve 501, the equipment is required to be assembled and positioned and fastened, and the universality and the positioning convenience of equipment installation and positioning are improved. It is noted that the insulating positioning base 51 includes an insulating base 511, an insulating threaded sleeve 512, a connecting nut 513, a positioning nut 514, an elastic spacer 515, and a temperature and humidity sensor 516, where the insulating base 511 has a rectangular plate structure with two cross sections, the two insulating base 511 are symmetrically distributed at two ends of the insulating threaded sleeve 512, and the plate surfaces of the two insulating base 511 are vertically distributed between the insulating base 512 and the insulating threaded sleeve 512, a connecting hole 517 coaxially distributed and communicated with the insulating threaded sleeve 512 is further provided on the insulating base 511, the insulating base 511 and the insulating threaded sleeve 512 are connected by an adjusting screw 52 and form a "U" shaped groove structure, the insulating threaded sleeve 512 is coated outside the adjusting screw 52, the two insulating base 511 are connected with the adjusting screw 52 by the connecting hole 517, the lower end surface of the adjusting screw 52 is located outside the lower end surface of the insulating base 511 and connected with the connecting nut 513, the adjusting screw 52 located on the upper end surface of the insulating base 511 is connected with the positioning nut 514, another elastic spacer 515 is provided between the connecting nut 513 and the insulating base 511, and the temperature and humidity sensor 516 is embedded in the upper end surface located on the bottom position insulating base 511 and is electrically connected with the driving circuit 56. When the insulating positioning base 51 is used for equipment installation and positioning, the U-shaped groove-shaped structure formed by the insulating base plate 511, the insulating threaded sleeve 512 and the adjusting screw 52 is used for realizing holding and positioning of the power relay protection device, and meanwhile, the connecting nuts 513, the positioning nuts 514 and the elastic gaskets 515 are used for realizing adjustment and positioning of the distance between the insulating base plates 511 at the two ends of the insulating threaded sleeve 512, so that the purposes of improving the stability and reliability of equipment installation and positioning are achieved.
As shown in fig. 1, the insulation positioning base 51 of the present embodiment is provided with a temperature and humidity sensor 516, and the temperature and humidity sensor 516 is electrically connected to the detection circuit 57. The environmental parameters of the power relay protection device to be detected during operation are effectively collected by the temperature and humidity sensor 516 through the insulating positioning base 51. In addition, the equipment can be reliably grounded through the grounding electrode, so that potential safety hazards caused by electric leakage are prevented.
As shown in fig. 1, a man-machine interaction module 561 is disposed on the panel 502 of the present embodiment, and the man-machine interaction module 561 is electrically connected to the driving control circuit 56, where the man-machine interaction module 561 includes one or more of a keyboard, a touch screen, and a display screen.
As shown in fig. 1, a communication port 59 is provided on the panel 502 of the present embodiment, and the communication port 59 is electrically connected to the drive control circuit 56. In this embodiment, the driving control circuit 56 and the detecting circuit 57 are respectively electrically connected with the power relay protection device through at least one auxiliary connection terminal, and the driving control circuit 56 is further electrically connected with the external power supply system through at least one auxiliary connection terminal. Meanwhile, a data connection is established between the communication port 59 and an external communication network. In actual detection operation, bear the weight of protection to detection circuit 57, drive control circuit 56 through bearing shell 54, prevent that the external environment from causing interference and harm to detection circuit 57, detection circuit 57 carries out electrical connection through auxiliary binding post and waiting to detect power relay protection device equipment simultaneously, realize the needs to gather the operation to the electrical system of power relay protection device equipment, make drive control circuit 56 and control terminal 6 electrical connection through communication port 59 simultaneously, and realize the running state of drive control circuit 56 by control terminal 6 drive regulation, and effectively realize the needs of detection data feedback. The detection circuit 57 in this embodiment is any one or several of a voltage detection circuit, a current detection circuit, a temperature and humidity detection circuit, an overload detection circuit, and a phase failure detection circuit, the driving control circuit 56 is a circuit system based on any one of a DSP and an FPGA chip, and the driving control circuit 56 is additionally provided with a MOS driving control circuit, a serial communication circuit, a crystal oscillator circuit, a multi-channel regulated power supply circuit, and a control interface 561 based on any one or two of a key and a display, and the control interface 561 is embedded outside the upper end surface of the panel 502. The control terminal 6 of the present embodiment is any one of an industrial computer, a PC computer, and a mobile communication terminal.
In this embodiment, the adjusting screw 52 is connected to the ground electrode 53, the ground electrode 53 includes a post 531, a conductive contact 532 and a conductive spring 533, wherein the upper half of the post 531 is embedded in the lower end surface of the carrier shell 54 and is vertically distributed with the lower end surface of the carrier shell 54, meanwhile, the lower end surface of the post 531 is connected to the conductive contact 532 through the conductive spring 533 and is coaxially distributed, and the lower end surface of the conductive contact 532 is located above the lower end surface of the insulating positioning base 51. The grounding electrode 53 connects the grounding wire column 531 and the conductive contact 532 through the conductive spring 533, so that the conductive contact 532 can flexibly adjust the working position through the conductive spring 533 while realizing conduction, and the operation requirements of the power relay protection devices with different structures are met. In addition, when the detection terminal 5 and the power relay protection device are assembled, the bottom of the bearing shell 54 and the outer surface of the power relay protection device are distributed in parallel, the conductive contacts 532 of the grounding electrode 53 are propped against and electrically connected with the outer surface of the shell of the power relay protection device, meanwhile, the whole working position of each edge insulation positioning base 51 is adjusted through the adjusting screw machine sliding block, meanwhile, the distance between two insulation base plates in the edge insulation positioning base 51 and the relative position relation are adjusted according to the shell structure of the power relay protection device, the insulation base plates are covered outside the shell of the power relay protection device, and then the bottom of the bearing shell 54 of the detection terminal 5 and each insulation base plate are additionally held on the outer surface of the power relay protection device through further adjustment of the adjusting screw, so that the assembly of the detection terminal 5 is completed. Meanwhile, in operation, the detection terminal 5 and the power relay protection device are reliably grounded through the grounding electrode 53.
In summary, the power relay protection device equipment state detection device of the embodiment has simple structure, flexible operation and high operation automation degree, and can effectively meet the requirement of synchronous detection operation of the power relay protection device operation state in various circuit systems by arranging system connection and detection terminal structure arrangement, the driving control circuit 56 and the detection circuit are embedded in the bearing shell and are connected with the bottom of the bearing shell through the bearing backboard, and the driving control circuit 56 is respectively and electrically connected with the detection circuit, the communication port and at least one auxiliary wiring terminal, so that the detection data precision and the detection efficiency are greatly improved during detection, the requirement of high-efficiency accurate evaluation of the power relay protection device operation state can be effectively met, the operation and maintenance management work efficiency of the power relay protection device is effectively improved, and the difficulty and cost of operation and maintenance work are reduced; meanwhile, the system has good expansion capability and redundancy anti-fault capability in operation, so that the stability and reliability of the system operation are effectively improved.
As shown in fig. 2, the embodiment further provides a power relay protection device status system, which includes a server unit, a communication gateway 3, a control terminal 6 and a plurality of detection terminals 5, where the control terminal 6 and the plurality of detection terminals 5 are respectively connected with the server unit through the communication gateway 3. As an alternative implementation manner, as shown in fig. 2, the server unit of the present embodiment includes an integrated data processing server 1 and a cloud computing processing server 2, where the integrated data processing server 1 is connected to the cloud computing processing server 2 through a communication gateway 3, and a communication network 4 between the communication gateway 3 and the cloud computing processing server 2 is the internet. The comprehensive data processing server 1 and the cloud computing processing server 2 are connected through a communication gateway 3, the comprehensive data processing server 1 is connected with at least one control terminal 6 and a plurality of detection terminals 5 through the communication gateway 3 to form a data monitoring service network platform, the data monitoring service network platforms are connected with each other through the communication gateway 3, and meanwhile, in the detection terminals 5, each detection terminal 5 is physically connected with one power relay protection device and is electrically connected with the power relay protection device.
The comprehensive data processing server 1 is based on a big data computing system, and is provided with a first BP neural network, a second BP neural network, an LSTM time sequence neural network system and a CNN neural network system at the same time, wherein the first BP neural network, the second BP neural network and the CNN neural network system are respectively connected with the big data computing system in a data mode, in addition, the first BP neural network, the second BP neural network and the CNN neural network system are connected with the LSTM time sequence neural network system in a data mode, and in addition, the LSTM time sequence neural network system is connected with the big data computing system in a data mode. And a gray scale correlation analysis algorithm system is embedded in the cloud computing processing server 2.
In the invention, the use of the power relay protection device equipment state system comprises the following steps:
S1, presetting a system, namely firstly arranging a comprehensive data processing server 1, a cloud computing processing server 2, a control terminal 6 and a communication gateway 3 in a dispatching or control room of a circuit system, respectively arranging a detection terminal 5 for each power relay protection device of the circuit system, electrically connecting the detection terminal 5 with the power relay protection devices through wires, and finally establishing data connection for the comprehensive data processing server 1, the cloud computing processing server 2, the communication gateway 3, the control terminal 6 and the detection terminal 5 through a communication network;
S2, equipment identification, namely after the step S1 is completed, firstly, recording the equipment numbers and the operation parameters of all the power relay protection devices in the comprehensive data processing server 1 through the control terminal 6; then, the comprehensive data processing server 1 distributes independent communication addresses for the cloud computing processing server 2, the communication gateway 3, the control terminal 6 and the detection terminals 5 respectively, and simultaneously performs data backup on the serial numbers, the operation parameters and the communication addresses of the power relay protection devices and sends the backed-up data into the cloud computing processing server 2;
S3, evaluating the operation of equipment, wherein in the operation of the power relay protection device along with a circuit system, on one hand, the detection terminal 5 is used for detecting and collecting circuit parameters when the power relay protection device operates; on the other hand, environmental temperature and humidity environmental data are collected when the low-power relay protection device operates, then the circuit parameters and the environmental data which are collected are sent to the comprehensive data processing server 1 for data storage, meanwhile, the comprehensive data processing server 1 regularly sends the received circuit parameters and the received environmental data to the cloud computing processing server 2, the cloud computing processing server 2 carries out computing analysis on the received data by utilizing a cloud computing platform and a gray scale correlation analysis algorithm system, and then the computing result is compared with the operating parameters of the power relay protection device, so that an operating state evaluation result of the power relay protection device is obtained, and the operating state evaluation result of the power relay protection device is output through the control terminal 6.
As shown in fig. 3, this embodiment further provides an application method of the foregoing power relay protection device status detection system, including:
S101, acquiring an environmental temperature and humidity signal and an electrical signal of a detected power relay protection device through a detection terminal 5, wherein the electrical signal comprises a voltage signal, a current signal, an overload detection signal and a phase failure detection signal;
S102, normalizing the environmental temperature and humidity signals and inputting the normalized environmental temperature and humidity signals into a trained first BP neural network to obtain an influence index of the environmental temperature and humidity on the running state of the detected power relay protection device, wherein the first BP neural network is trained to establish a mapping relation between the normalized environmental temperature and humidity signals and the influence index of the environmental temperature and humidity on the running state of the detected power relay protection device; the electrical signals are input into a trained second BP neural network after being normalized, so that influence indexes of the electrical signals on the running state of the detected power relay protection device are obtained, and the second BP neural network is trained to establish a mapping relation between the normalized electrical signals and the influence indexes of the electrical signals on the running state of the detected power relay protection device;
S103, the influence indexes of the environment temperature and humidity on the running state of the detected power relay protection device and the influence indexes of the electric signals on the running state of the detected power relay protection device are obtained through a trained running state comprehensive evaluation model, and the running state comprehensive evaluation model is trained to establish a mapping relation between the two influence indexes and the running state comprehensive evaluation result.
In this embodiment, the gray scale correlation analysis algorithm system is embedded in the cloud computing processing server 2, so that before the environmental temperature and humidity signals are normalized and then input to the trained first BP neural network and the electrical signals are normalized and then input to the trained second BP neural network, the gray scale correlation analysis algorithm system of the cloud computing processing server 2 can be adopted to calculate weights for calculating the environmental temperature and humidity signals and the electrical signals according to the requirements, so that the parameter weights input to the trained first and second BP neural networks can be adjusted to further improve the accuracy of influencing index detection. The first/second BP neural network is of an existing network structure and comprises an input layer, an hidden layer and an output layer, the number of neurons of the input layer is the same as that of input indexes, the output layer is a neuron, the hidden layer is used for realizing full connection between the input layer and the output layer, and parameters of the first/second BP neural network are weights of all full connection.
In this embodiment, the detection terminal 5 counts the collected data when the on-site power relay protection device operates, and simultaneously performs calculation and analysis on the collected data through the cloud computing processing server 2, and in the calculation and analysis process, the gray scale correlation analysis algorithm system of the cloud computing processing server 2 is utilized to analyze and calculate the environmental temperature, the humidity environmental data and the circuit parameter data when the current power relay protection device operates only by the control terminal 6, so as to obtain an analysis result of the influence of environmental factors on the operation state of the power relay protection device and an analysis result of the influence of the circuit operation state when the power relay protection device operates on the actual operation parameters, thereby realizing the need of evaluating the operation state of the power relay protection device in the current period.
And then, respectively transmitting an influence analysis result of environmental factors corresponding to an operation state evaluation result in the current state of the power relay protection device on the operation state of the power relay protection device and an analysis result of influence of a circuit operation state on actual operation parameters in the operation of the power relay protection device to the comprehensive data processing server 1, and classifying the received influence indexes of the environment temperature and humidity on the operation state of the detected power relay protection device and the influence indexes of the electric signals on the operation state of the detected power relay protection device by the operation state comprehensive evaluation model to obtain the operation state comprehensive evaluation result of the current power relay protection device, thereby meeting the requirements of guiding the operation state control guidance and the detection operation of the current power relay protection device.
The operation state comprehensive evaluation model in step S103 may be a required model, such as an LSTM time series neural network system and a CNN neural network system, where the input vector is required to be converted into a two-dimensional image when the CNN neural network system is adopted, and the converted two-dimensional image may be defined as a two-dimensional graph or other two-dimensional graph generating algorithm according to the requirement. The system of the embodiment has simple structure, flexible operation and high operation automation degree, can effectively meet the requirement of synchronous detection operation of the operation state of the power relay protection device in various circuit systems, has high detection data precision and detection efficiency, can effectively meet the requirement of high-efficiency and accurate evaluation of the operation state of the power relay protection device, and has good expansion capability and redundancy anti-fault capability in operation, thereby effectively improving the stability and reliability of the operation of the system.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
1. The utility model provides a power relay protection device equipment state detection device which is characterized in that, including insulating positioning base (51) and install on insulating positioning base (51) bear shell (54), bear shell (54) have upper portion open-ended installation cavity, upper portion open-ended department installs panel (502), be equipped with in the installation cavity and bear backplate (55), bear and be equipped with drive control circuit (56) and detection circuit (57) on backplate (55), drive control circuit (56) and detection circuit (57) electrical connection, auxiliary binding post (58) of detection circuit (57) are connected with the electric power device electricity of being detected in order to be used for detecting the electric signal in the electric power relay protection device of being detected; the two sides of the bearing shell (54) are provided with sliding sleeves (501), each sliding sleeve (501) corresponds to one insulating positioning base (51), the insulating positioning base (51) is provided with a rotatable adjusting screw (52), the adjusting screw (52) is in threaded connection with the corresponding sliding sleeve (501), and a locking bolt (503) for locking or unlocking the adjusting screw (52) and the sliding sleeve (501) is arranged outside the sliding sleeve (501); the insulation positioning base (51) comprises insulation screw sleeves (512) sleeved on the adjusting screw rods (52), two ends of each insulation screw sleeve (512) are respectively provided with an insulation base plate (511), connecting holes (517) which are coaxially distributed and communicated with the insulation screw sleeves (512) are formed in the insulation base plates (511), elastic gaskets (515) penetrating through the insulation screw sleeves (512) and connecting nuts (513) are arranged on the outer sides of the connecting holes (517) of one insulation base plate (511), elastic gaskets (515) penetrating through the insulation screw sleeves (512) and positioning nuts (514) are arranged on the outer sides of the connecting holes (517) of the other insulation base plates (511), and the insulation screw sleeves (512) and the insulation base plates (511) are clamped and fixed into a whole through the connecting nuts (513) and the positioning nuts (514);
the adjusting screw (52) is connected with a grounding electrode (53), the grounding electrode (53) comprises a binding post (531), a conductive contact (532) and a conductive spring (533), wherein the upper half part of the binding post (531) is embedded in the lower end face of the bearing shell (54) and is vertically distributed with the lower end face of the bearing shell (54), meanwhile, the lower end face of the binding post (531) is connected with the conductive contact (532) through the conductive spring (533) and is coaxially distributed, and the lower end face of the conductive contact (532) is positioned above the lower end face of the insulating positioning base (51);
the bearing shell (54) is of a U-shaped groove-shaped structure in cross section, the panel (502) is coated outside the upper end face of the bearing shell (54) and forms a closed cavity structure with the bearing shell (54), the number of the edge positioning bases (51) is four, the center lines at the bottom of the bearing shell (54) are symmetrically distributed, the edge positioning bases are connected with the outer surface of the side wall of the bearing shell (54) through the adjusting screw (52), and the upper end face of the insulating positioning base (51) is located below the bottom of the bearing shell (54) and is spaced 0-100 mm from the bottom of the bearing shell (54).
2. The power relay protection device equipment state detection apparatus according to claim 1, wherein the detection circuit (57) includes at least one of a voltage detection circuit, a current detection circuit, a temperature and humidity detection circuit, an overload detection circuit, and a phase failure detection circuit; and a temperature and humidity sensor (516) is arranged on the insulating positioning base (51), and the temperature and humidity sensor (516) is electrically connected with the detection circuit (57).
3. The power relay protection device equipment state detection device according to claim 1, wherein a man-machine interaction module (561) is arranged on the panel (502), the man-machine interaction module (561) is electrically connected with the drive control circuit (56), the man-machine interaction module (561) comprises one or more of a keyboard, a touch screen and a display screen, a communication port (59) is arranged on the panel (502), and the communication port (59) is electrically connected with the drive control circuit (56).
4. The utility model provides a power relay protection device equipment state detecting system, includes server unit, communication gateway (3), control terminal (6) and a plurality of detection terminal (5) link to each other with the server unit through communication gateway (3) respectively, detection terminal (5) are power relay protection device equipment state detecting device of any one of claims 1-3.
5. The power relay protection device equipment state detection system according to claim 4, wherein the server unit comprises a comprehensive data processing server (1) and a cloud computing processing server (2), the comprehensive data processing server (1) is connected with the cloud computing processing server (2) through a communication gateway (3), and a communication network (4) between the communication gateway (3) and the cloud computing processing server (2) is the internet; the comprehensive data processing server (1) and the cloud computing processing server (2) are connected through a communication gateway (3), the comprehensive data processing server (1) is connected with at least one control terminal (6) and a plurality of detection terminals (5) through the communication gateway (3) to form a data monitoring service network platform, the data monitoring service network platforms are connected with each other through the communication gateway (3), and meanwhile, in the detection terminals (5), each detection terminal (5) is physically connected with one power relay protection device and is electrically connected with the power relay protection device; the comprehensive data processing server (1) is based on a big data computing system, a first BP neural network, a second BP neural network, an LSTM time sequence neural network system and a CNN neural network system are simultaneously arranged, the first BP neural network, the second BP neural network and the CNN neural network system are respectively connected with the big data computing system in a data mode, in addition, data connection is simultaneously established with the LSTM time sequence neural network system, and meanwhile, the LSTM time sequence neural network system is further connected with the big data computing system in a data mode.
6. The power relay protection device equipment state detection system according to claim 5, wherein a gray scale correlation analysis algorithm system is embedded in the cloud computing processing server (2), and before the environment temperature and humidity signals are normalized and input into the trained first BP neural network and the electric signals are normalized and input into the trained second BP neural network, the gray scale correlation analysis algorithm system of the cloud computing processing server (2) can be adopted to calculate weights for the temperature and humidity signals and the electric signals of each environment according to the requirement, so that the parameter weights input into the trained first BP neural network and the trained second BP neural network are adjusted to further improve the accuracy of influencing index detection; the first BP neural network and the second BP neural network are all of the existing network structures and comprise an input layer, an hidden layer and an output layer, the number of neurons of the input layer is the same as that of input indexes, the output layer is a neuron, the hidden layer is used for realizing full connection between the input layer and the output layer, and parameters of the first BP neural network and the second BP neural network are weights of all full connection.
7. The power relay protection device equipment state detection system according to claim 6, wherein the detection terminal (5) counts collected data during operation of the on-site power relay protection device, and simultaneously calculates and analyzes the collected data through the cloud computing processing server (2), and in the calculation and analysis process, the environment temperature, the humidity environment data and the circuit parameter data during operation of the current power relay protection device only by the control terminal (6) are analyzed and calculated by using the gray scale association analysis algorithm system of the cloud computing processing server (2), so that an analysis result of influence of environmental factors on the operation state of the power relay protection device and an analysis result of influence of the circuit operation state during operation of the power relay protection device on actual operation parameters are obtained, and the requirement for evaluating the operation state of the power relay protection device in the current period is met;
And the received environmental temperature and humidity impact index of the operation state of the detected power relay protection device and the electric signal impact index of the operation state of the detected power relay protection device are classified by the operation state comprehensive evaluation model to obtain the current power relay protection device operation state comprehensive evaluation result, so that the requirements of guiding the control guidance and detection operation of the current power relay protection device operation state are met.
8. A detection method based on the power relay protection device equipment state detection system according to claim 6 or 7, characterized by comprising:
S101, acquiring an environmental temperature and humidity signal and an electrical signal of a detected power relay protection device through a detection terminal (5), wherein the electrical signal comprises a voltage signal, a current signal, an overload detection signal and a phase failure detection signal;
S102, normalizing an environment temperature and humidity signal and inputting the environment temperature and humidity signal into a trained first BP neural network to obtain an influence index of the environment temperature and humidity on the running state of the detected power relay protection device, wherein the first BP neural network is trained to establish a mapping relation between the normalized environment temperature and humidity signal and the influence index of the environment temperature and humidity on the running state of the detected power relay protection device; the electrical signals are input into a trained second BP neural network after being normalized, so that influence indexes of the electrical signals on the running state of the detected power relay protection device are obtained, and the second BP neural network is trained to establish a mapping relation between the normalized electrical signals and the influence indexes of the electrical signals on the running state of the detected power relay protection device;
S103, the influence indexes of the environment temperature and humidity on the running state of the detected power relay protection device and the influence indexes of the electric signals on the running state of the detected power relay protection device are utilized to obtain the running state comprehensive evaluation result of the detected power relay protection device by using a trained running state comprehensive evaluation model, and the running state comprehensive evaluation model is trained to establish a mapping relation between the two influence indexes and the running state comprehensive evaluation result.
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| CN202311331712.7A CN117368712B (en) | 2023-10-13 | 2023-10-13 | Device, system and method for detecting equipment state of power relay protection device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565834A (en) * | 2018-05-02 | 2018-09-21 | 史里司 | A kind of Power transformer differential protective relaying device |
| CN209746093U (en) * | 2019-01-21 | 2019-12-06 | 南京芯瑞电力技术有限公司 | Universal relay protection measurement and control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150141053A (en) * | 2014-06-09 | 2015-12-17 | 엘에스산전 주식회사 | Protective relaying system and method for gathering data using thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565834A (en) * | 2018-05-02 | 2018-09-21 | 史里司 | A kind of Power transformer differential protective relaying device |
| CN209746093U (en) * | 2019-01-21 | 2019-12-06 | 南京芯瑞电力技术有限公司 | Universal relay protection measurement and control device |
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