Multifunctional power distribution network protection device and use method thereof

Abstract

The invention discloses a multifunctional power distribution network protection device and a use method thereof, and relates to the technical field of power distribution networks, the multifunctional power distribution network protection device comprises a protection filter assembly, a mechanical structure assembly, a communication module and a power module, and the communication module is installed at one end of the side face of the outer wall of the mechanical structure assembly; a power module is installed at the other end of the side face of the outer wall of the mechanical structure assembly, and a protection filtering assembly is installed on the front face of the outer wall of the power module and comprises a circuit breaker and an EMC assembly. The EMC assembly comprises a common mode inductor, a magnetic bead and a shielding filter. The integrated protection function is achieved by protecting the filter assembly, the problems that protection devices are various in variety, scattered in function and difficult to achieve unified management and coordination are solved, the multiple protection functions are integrated, unified management and coordination are achieved, the risks of misoperation and rejection are reduced, and the accuracy and timeliness of protection actions are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution networks, and particularly to a multifunctional distribution network protection device and a method for using the same. Background Art

[0002] The distribution network is one of the indispensable infrastructures in modern society, and the development of distribution network protection devices and protection methods is to improve the safety, reliability and intelligence level of the distribution network.

[0003] With the continuous innovation of technology and the progress of society, the requirements of society for energy security and sustainable development also promote the intelligent development of distribution network protection devices to better meet the needs of future energy systems and provide a more stable and efficient power supply for our lives and economic activities. Existing distribution network protection devices are vulnerable to external interference when dealing with complex power system operation conditions, and there is communication incompatibility when connecting devices produced by different manufacturers, which affects the operation of the protection device and cannot operate normally. Moreover, there is insufficient sensitivity and it is impossible to accurately and quickly locate the fault point, so it is necessary to improve the intelligent level and reliability of the distribution network protection device.

[0004] Therefore, it is very necessary to propose a multifunctional distribution network protection device and a method for using the same in this application to solve the problems in the background.

[0005] Patent document CN110581539B discloses a protection device for a DC distribution network and a protection method thereof. The above patent realizes the isolation of the fault side and the non-fault side of the DC distribution network, which is convenient for the fault side to cut off the fault, but the above patent cannot realize the integrated protection function.

[0006] Patent document CN111224376B discloses a method and a device for preventing electric shock in a low-voltage distribution network. The above patent realizes the protection of personal electric shock safety without changing the operation mode of the power grid, and can eliminate the misoperation of the leakage current protection device caused by instantaneous faults, but the above patent cannot realize the remote control function.

[0007] Patent document CN107192919B discloses a protection device for a distribution network feed line that can self-identify the grounding method. The above patent realizes a protection device for a distribution network feed line that can self-identify the grounding method, but when the grounding method changes, it cannot protect the distribution network feed line, and the above patent cannot realize the regional cooperative protection function.

[0008] Patent document CN111834932B discloses an intelligent power distribution network safety protection device. The above patent realizes that a circulation cavity is formed between the backs of each electronic device, so as to send heat into the connection box through the ventilation holes at the top for cooling by using a heat exchange component, and then send it back into the installation box through the return air holes, and avoid opening holes to directly communicate with external water vapor, resulting in moisture in the box, thereby improving the safety protection effect for the distribution box. However, the above patent cannot realize the communication compatibility function.

[0009] In summary, the above patent cannot realize the integrated protection function, remote control function, regional collaborative protection function and communication compatibility function, resulting in an increased risk of equipment damage, a decrease in power supply reliability, low operation and maintenance efficiency, insufficient real-time performance, lack of decision support, an expanded fault isolation range, an extended power restoration time, a decrease in system stability, an increase in system integration difficulty and limited scalability; Therefore, the present application proposes a multifunctional power distribution network protection device that can realize the integrated protection function, remote control function, regional collaborative protection function and communication compatibility function. Summary of the Invention

[0010] The purpose of the present invention is to provide a multifunctional power distribution network protection device and its usage method, so as to solve the technical problems proposed in the above background technology that the integrated protection function, remote control function, regional collaborative protection function and communication compatibility function cannot be realized, resulting in an increased risk of equipment damage, a decrease in power supply reliability, low operation and maintenance efficiency, insufficient real-time performance, lack of decision support, an expanded fault isolation range, an extended power restoration time, a decrease in system stability, an increase in system integration difficulty and limited scalability.

[0011] To achieve the above purpose, the present invention provides the following technical solution: A multifunctional power distribution network protection device includes a protection and filtering component, a mechanical structure component, a communication module and a power supply module. One end of the outer wall side of the mechanical structure component is installed with a communication module; The other end of the outer wall side of the mechanical structure component is installed with a power supply module. The front of the outer wall of the power supply module is installed with a protection and filtering component. The protection and filtering component includes a circuit breaker and an EMC component; The EMC component includes a common mode inductor, a magnetic bead and a shielding filter. The shielding filter is installed on the outer wall side of the common mode inductor. The magnetic bead is installed on the outer wall side of the shielding filter. The shielding filter is located between the common mode inductor and the magnetic bead.

[0012] Preferably, the power supply module includes a DC regulated power supply and an uninterruptible power supply. The DC regulated power supply is installed on the outer wall side of the uninterruptible power supply. The uninterruptible power supply and the DC regulated power supply are tightly embedded through a circuit board. The outer walls of the uninterruptible power supply and the DC regulated power supply are wrapped with heat sinks.

[0013] Preferably, the mechanical structure assembly includes a protective housing and brackets. Brackets are installed at both ends of the bottom of the outer wall of the protective housing, and positioning holes are provided in the middle of the brackets; The communication module includes a serial terminal, a network terminal, and a wireless Z. The serial terminal and the network terminal are respectively embedded at both ends of the protective housing. A wireless Z is installed on the side of the outer wall of the protective housing. The serial terminal is located directly to the right of the power module.

[0014] Preferably, an interaction interface is installed on the top of the outer wall of the protective housing, and an indicator light is installed on the side of the outer wall of the protective housing. The indicator light is located directly above the power module.

[0015] Preferably, an intelligent integration center board is installed in the middle of the bottom of the inner wall of the protective housing. The intelligent integration center board is connected to the communication module, the protection and filtering component, and the power module through data lines. Sensors, a measurement and control unit, an integration unit, and a transmission unit are installed at the top of the outer wall of the intelligent integration center board; The sensors include a current sensor, a voltage sensor, and a temperature sensor; A sampling circuit is installed on the side of the outer wall of the sensor. The outer wall of the sampling circuit is surrounded by an insulating tube. The sensor is connected to the intelligent integration center board through the sampling circuit. Electronic components are distributed on the outer wall of the intelligent integration center board.

[0016] Preferably, an actuator and a limiting component are installed at the bottom of the outer wall of the intelligent integration center board. The limiting component includes a varistor, a gas discharge tube, and a contactor. Two card slots are provided at the top of the outer wall of the actuator. The actuator is fixedly connected to the intelligent integration center board through the card slots. The varistor, the gas discharge tube, and the contactor are connected to each other through data lines.

[0017] Preferably, a software control center, a non-volatile memory, a status monitoring switch, a distributed database, and a regulator are installed at the top of the outer wall of the intelligent integration center board. Four data access points are installed at the bottom of the outer wall of the software control center. The non-volatile memory, the status monitoring switch, the distributed database, and the regulator are connected to each other through a capillary tube. The capillary tube is integrated by electronic movement to form a capillary network center inside the intelligent integration center board. An input loop and an output loop are connected to the bottom of the outer wall of the status monitoring switch.

[0018] Preferably, an accelerometer is installed at the bottom of the outer wall of the protective housing. The accelerometer is fixedly connected to the bracket. A rubber plate is installed at the top of the outer wall of the protective housing, and a capacitor is installed on the side of the outer wall of the protective housing.

[0019] Preferably, the usage method includes the following steps: S1. Turn on the power module. The indicator light inside the device flashes, transmitting an optical signal to the user. The heat sink starts to heat up slightly to confirm normal power supply. The accelerometer records vibrations in real time. The pressure triggers the accelerometer to generate an acceleration signal to control the device. The accelerometer also introduces a feedback loop that reacts on the indicator light to transmit abnormal device behavior. The rubber plate provides additional buffering and protection for the device; S2. The serial terminal and the network terminal perform network configuration of the communication module by connecting a wired cable. The wireless Z sends out data signals to the outside world and responds to each other to ensure a correct connection to the external network; S3. Use the interactive interface for initial settings, including protection setting parameters, control parameters, monitoring and alarm parameters, communication parameters, and system self-check. Provide real-time feedback during parameter setting, such as success / failure prompt messages for setting. The user makes manual adjustments. Use the interactive interface to set permission management to ensure that only users with corresponding permissions can modify key parameters to prevent power grid accidents caused by misoperations; S4. Through the status monitoring switch and the software control center, monitor the working status of the device in real time. Adjust the settings of sensors and actuators through the interactive interface to ensure optimal performance. The sampling circuit transmits data to the intelligent integrated central board; S5. The distributed database and the non-volatile memory are controlled to work orderly through the output signal of the software control center, storing and analyzing data as needed; S6. The common mode inductor, magnetic bead, and shielding filter cooperate with each other to form a shielding network to filter out high-frequency noise and electromagnetic radiation interference. The circuit breaker forms an insulating electrical component when the instantaneous energy fluctuation is large to suppress the energy flow.

[0020] Preferably, the usage method further includes the following steps: S7. When the voltage fluctuates, the intelligent integrated central board outputs a signal to the actuator to be converted into behavioral language to regulate the operation of the limiting component. The varistor increases its resistance, and the gas inside the gas discharge tube is broken down and discharges, generating an oscillation signal and undergoing energy conversion. The overload voltage and current are discharged to the contactor, and the contactor goes from the wire to the ground to control the voltage at a lower level; S8. When an abnormality occurs, diagnose through the data entry point of the software control center, detect the varistor, gas discharge tube, and contactor in the limiting component to eliminate faults. The wireless Z issues commands without contact network signals. The software control center determines the version of the security patch based on the detection situation. When the hardware is intact, the measurement and control unit conducts a fault simulation test. The integrated unit verifies the internal implementation and logic and flows the results through the transmission unit to the interactive interface and the microcontroller. The microcontroller makes an AI automatic control response. The error log is recorded in a dot element in the non-volatile memory. The user retrieves information through the interactive interface to view the event process.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By protecting the filtering component, the present invention realizes an integrated protection function, solves the problems of a wide variety of protection devices, scattered functions, and difficulty in achieving unified management and coordination, integrates multiple protection functions into one, realizes unified management and coordination, reduces the risks of misoperation and refusal to operate, and improves the accuracy and timeliness of protection actions. 2. Through the intelligent integrated central board, the present invention realizes the regional cooperative protection function, solves the problems of large fault isolation range, long power restoration time, and decreased system stability, effectively controls the fault range, automatically processes faults, shortens the power restoration time, reduces the impact on other regions, and improves the user's power consumption experience. 3. Through the communication module, the present invention realizes the communication compatibility function, solves the problems of communication obstacles between devices and high system integration difficulty, eliminates communication obstacles between devices, simplifies the system integration process, and reduces the system integration difficulty and cost. 4. Through the microcontroller, the present invention realizes the telecontrol function, solves the problems of low operation and maintenance efficiency and insufficient real-time performance, improves the real-time performance of obtaining the operation data of the distribution network, and reduces the workload and time cost of operation and maintenance personnel for on-site operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is the front partial structural schematic diagram of the present invention; Figure 3 is the EMC component structural schematic diagram of the present invention; Figure 4 is the communication / power supply module structural schematic diagram of the present invention; Figure 5 is the intelligent integrated central board structural schematic diagram of the present invention; Figure 6 is the limiting component structural schematic diagram of the present invention; Figure 7 is the protection device partial structural schematic diagram of the present invention; Figure 8 is the flowchart of the usage method of the multifunctional distribution network protection device of the present invention.

[0023] In the figure: 1, protective housing; 2, bracket; 3, interactive interface; 4, common mode inductor; 5, magnetic bead; 6, shielding filter; 7, heat sink; 8, indicator light; 9, non-volatile memory; 10, accelerometer; 11, current sensor; 12, voltage sensor; 13, temperature sensor; 14, microcontroller; 15, DC regulated power supply; 16, uninterruptible power supply; 17, status monitoring switch; 18, circuit breaker; 19, serial terminal; 20, measurement and control unit; 21, integrated unit; 22, transmission unit; 23, varistor; 24, gas discharge tube; 25, contactor; 26, sampling circuit; 27, distributed database; 28, actuator; 29, regulator; 30, software control center; 31, wireless Z; 32, positioning hole; 33, capacitor; 34, intelligent integrated center board; 35, rubber plate; 36, insulating tube; 37, network terminal. Detailed implementation manner

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] Please refer to Figure 1 , Figure 3 and Figure 5, an embodiment provided by the present invention: a multifunctional distribution network protection device and its usage method. The multifunctional distribution network protection device includes a protection and filtering component, a mechanical structure component, a communication module, and a power supply module. One end of the outer wall side of the mechanical structure component is installed with a communication module; the other end of the outer wall side of the mechanical structure component is installed with a power supply module, and a protection and filtering component is installed on the front surface of the outer wall of the power supply module. The protection and filtering component includes a circuit breaker 18 and an EMC component; the EMC component includes a common mode inductor 4, a magnetic bead 5, and a shielding filter 6. The shielding filter 6 is installed on the outer wall side of the common mode inductor 4, and the magnetic bead 5 is installed on the outer wall side of the shielding filter 6. The shielding filter 6 is located between the common mode inductor 4 and the magnetic bead 5. An accelerometer 10 is installed at the bottom of the outer wall of the protective housing 1, and the accelerometer 10 is fixedly connected to the bracket 2. A rubber plate 35 is installed at the top of the outer wall of the protective housing 1; Further, first ensure that the installation environment is dry and safe. Install the bracket 2 at a predetermined position and fix the bracket 2 through the positioning hole 32 to ensure the stability of the bracket 2 to support the entire device. Then install the protective housing 1 on the bracket 2 to ensure the secure installation of the protective housing 1. Connect the communication module, the protection and filtering component, and the power supply module to the corresponding positions of the protective housing 1 respectively. Connect the DC regulated power supply 15 and the uninterruptible power supply 16 in the power supply module to ensure tight fitting through the circuit board. Connect the sensor to the intelligent integration center board 34 through the sampling circuit 26 to ensure the complete connection of the intelligent integration center board 34 with each module. Finally, start the device.

[0028] Please refer to Figure 1 , Figure 2 and Figure 4 , an embodiment provided by the present invention: a multifunctional distribution network protection device and its usage method. The power supply module includes a DC regulated power supply 15 and an uninterruptible power supply 16. The DC regulated power supply 15 is installed on the outer wall side of the uninterruptible power supply 16. The uninterruptible power supply 16 and the DC regulated power supply 15 are tightly fitted through the circuit board. The outer walls of the uninterruptible power supply 16 and the DC regulated power supply 15 are wrapped with a heat sink 7; the mechanical structure component includes a protective housing 1 and a bracket 2. Two brackets 2 are installed at both ends of the bottom of the outer wall of the protective housing 1, and a positioning hole 32 is provided in the middle of the bracket 2; the communication module includes a serial terminal 19, a network terminal 37, and a wireless Z31. The serial terminal 19 and the network terminal 37 are respectively embedded at both ends of the protective housing 1, and the wireless Z31 is installed on the outer wall side of the protective housing 1. The serial terminal 19 is located directly to the right of the power supply module; Further, first, turn on the power module. When the mains input is normal, the uninterruptible power supply 16 stabilizes the mains power and supplies it to the load for use, and at the same time charges the internal battery of the machine. When the mains power is interrupted (such as a power outage due to an accident), the uninterruptible power supply 16 immediately converts the DC electrical energy of the battery into AC power through an inverter and continues to supply power to the load to ensure that the load maintains normal operation, prevent data loss and equipment shutdown. At the same time, the uninterruptible power supply 16 can operate stably under unstable voltage conditions to protect the device. The DC regulated power supply 15 converts AC power into DC power and stably outputs the voltage to meet the requirements of the distribution network protection device for DC power. When there is an instantaneous fluctuation in the grid voltage or load, the DC regulated power supply 15 can respond quickly and compensate for the voltage amplitude to keep it within the allowable range. Then the indicator light 8 inside the device flashes to transmit an optical signal to the user, the heat sink 7 starts to get slightly hot, confirming that the power supply is normal. The accelerometer 10 records the shock in real time, the pressure triggers the accelerometer 10 to generate an acceleration signal to control the device, and the accelerometer 10 also introduces a feedback loop to act on the indicator light 8 to transmit abnormal device behavior. The rubber plate 35 provides additional buffering and protection for the device. Finally, the serial terminal 19 and the network terminal 37 are used to configure the network of the communication module by connecting a wired cable for special environmental needs to connect an external network cable. The wireless Z31 sends data signals to the outside and responds to each other under the support of the Internet of Things to achieve a correct connection with the external network.

[0029] Please refer to Figure 1 、 Figure 2 and Figure 7 , an embodiment provided by the present invention: a distribution network protection device with multiple functions and its usage method. A capacitor 33 is installed on the side wall of the outer wall of the protective housing 1, an interaction interface 3 is installed on the top of the outer wall of the protective housing 1, and an indicator light 8 is installed on the side wall of the outer wall of the protective housing 1. The indicator light 8 is located directly above the power module. In the middle of the bottom inner wall of the protective housing 1, an intelligent integration center board 34 is installed. The intelligent integration center board 34 is connected to the communication module, the protection and filtering component, and the power module through data lines. At the top end of the outer wall of the intelligent integration center board 34, a sensor, a measurement and control unit 20, an integration unit 21, and a transmission unit 22 are installed. Furthermore, first use the interactive interface 3 for preliminary settings to display the current current and voltage values in real time, facilitating the monitoring of the power grid operation status, and displaying information such as fault types, fault times, and fault locations, facilitating fault troubleshooting and handling. At the same time, set the trigger conditions for alarms, and trigger an alarm when the current and voltage exceed the set thresholds. The indicator light 8 conveys it to the maintenance personnel. Then provide real-time feedback during the parameter setting process, such as prompt messages for successful / failed settings. The user makes manual adjustments, and uses the interactive interface 3 to set permission management to ensure that only users with corresponding permissions can modify key parameters, preventing power grid accidents caused by misoperations. Set the overcurrent setting value, instantaneous trip protection setting value, open-phase protection setting value, and protection operation time to ensure that the fault source can be accurately and timely cut off when a fault occurs. Driven by the automatic reclosing function, set the time interval of the reclosing to restore power supply after the fault is cleared.

[0030] Please refer to Figures 1 - 8 , an embodiment provided by the present invention: a distribution network protection device with multiple functions and its usage method. On the top outer wall of the intelligent integration center board 34, a software control center 30, a non-volatile memory 9, a status monitoring switch 17, a distributed database 27, and a regulator 29 are installed. At the bottom outer wall of the software control center 30, four data access points are installed. The non-volatile memory 9, the status monitoring switch 17, the distributed database 27, and the regulator 29 are interconnected through capillaries. The capillaries are integrated by electronic movement inside the intelligent integration center board 34 to form a capillary network center. The bottom outer wall of the status monitoring switch 17 is connected to an input circuit and an output circuit; Furthermore, through the status monitoring switch 17 and the software control center 30, the working status of the device is monitored in real time, and the settings of the sensor and the actuator 28 are adjusted through the interactive interface 3 to ensure the best performance. The sampling circuit 26 transmits the data to the intelligent integration center board 34; the distributed database 27 and the non-volatile memory 9 control the orderly operation through the output signal of the software control center 30, store and analyze the data as needed; the data access point of the software control center 30 conducts diagnosis, detects the varistors 23, gas discharge tubes 24, and contactors 25 in the limiting components to eliminate faults, and the wireless Z31 issues commands without contact network signals. The software control center 30 judges the version of the security patch according to the detection situation. When the hardware is intact, the measurement and control unit 20 conducts a fault simulation test, and the integration unit 21 verifies the internal implementation and logic and flows the results to the interactive interface 3 and the microcontroller 14 through the transmission unit 22. The microcontroller 14 makes a response through AI automatic control, and the error log is recorded in a point element in the non-volatile memory 9. The user retrieves the information through the interactive interface 3 to view the event process.

[0031] Please refer to Figures 3 - 8, an embodiment provided by the present invention: a multifunctional distribution network protection device and its usage method. The sensors include a current sensor 11, a voltage sensor 12, and a temperature sensor 13; A sampling circuit 26 is installed on the outer side of the sensor wall. The outer wall of the sampling circuit 26 is surrounded by an insulating tube 36. The sensor is connected to the intelligent integrated central board 34 through the sampling circuit 26. Electronic components are distributed on the outer wall of the intelligent integrated central board 34; An actuator 28 and a limiting component are installed at the bottom of the outer wall of the intelligent integrated central board 34. The limiting component includes a varistor 23, a gas discharge tube 24, and a contactor 25. Two card slots are opened at the top of the outer wall of the actuator 28. The actuator 28 is fixedly connected to the intelligent integrated central board 34 through the card slots. The varistor 23, the gas discharge tube 24, and the contactor 25 are connected to each other through data lines; Further, first, the common mode inductor 4, the magnetic bead 5, and the shielding filter 6 cooperate with each other to form a shielding network to filter out high-frequency noise and electromagnetic radiation interference. The circuit breaker 18 forms an insulating electrical component when the instantaneous energy fluctuation is large to inhibit the energy flow. Then, the intelligent integrated central board 34 outputs a signal to the actuator 28 to be converted into a behavioral language to control the operation of the limiting component. The varistor 23 increases the resistance, the gas inside the gas discharge tube 24 is broken down and discharged to generate an oscillation signal, and energy conversion occurs. The overload voltage and current are discharged to the contactor 25. The contactor 25 is grounded through a wire to control the voltage at a lower level.

[0032] Working principle: Turn on the power module. The indicator light 8 inside the device flashes to transmit an optical signal to the user. The heat sink 7 starts to heat slightly to confirm normal power supply. The accelerometer 10 records the vibration in real time. The pressure triggers the accelerometer 10 to generate an acceleration signal to control the device. The accelerometer 10 simultaneously introduces a feedback loop to act on the indicator light 8 to transmit abnormal behavior of the device; The serial terminal 19 and the network terminal 37 are used to configure the network of the communication module by connecting a wired cable. The wireless Z31 sends out data signals to the outside and responds to each other. The interactive interface 3 is used for preliminary settings to adjust the sensors and the actuator 28. The status monitoring switch 17 and the software control center 30 monitor the working status of the device in real time. Under normal circumstances, the current flows through the protection filtering component. In special cases, the resistance of the protection filtering component increases to inhibit the energy flow. The intelligent integrated central board 34 maintains the normal use of the distribution network, transmits the problem source in time, simulates the solution for testing, and finally protects the normal operation of the device.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A multifunctional distribution network protection device, characterized in that: It includes a protective filter component, a mechanical structure component, a communication module and a power module, wherein a communication module is installed at one end of the side surface of the outer wall of the mechanical structure component; A power module is installed at the other end of the side surface of the outer wall of the mechanical structure component, and a protection filter component is installed at the front of the outer wall of the power module. The protection filter component includes a circuit breaker (18) and an EMC component. The circuit breaker (18) is connected to the EMC component via a transmission line. The EMC component comprises a common-mode inductor (4), a magnetic bead (5) and a shielding filter (6); the shielding filter (6) is installed on the side of an outer wall of the common-mode inductor (4); the magnetic bead (5) is installed on the side of an outer wall of the shielding filter (6); and the shielding filter (6) is located between the common-mode inductor (4) and the magnetic bead (5).

2. A multifunctional distribution network protection device according to claim 1, characterized in that: The power module comprises a DC regulated power supply (15) and an uninterruptible power supply (16); the DC regulated power supply (15) is mounted on the side of the outer wall of the uninterruptible power supply (16); the uninterruptible power supply (16) and the DC regulated power supply (15) are tightly fitted together via a circuit board; and the outer walls of the uninterruptible power supply (16) and the DC regulated power supply (15) are wrapped with a heat sink (7).

3. The multifunctional distribution network protection device according to claim 1, characterized in that: The mechanical structure assembly comprises a protective shell (1) and a bracket (2), the brackets (2) being mounted at both ends of the bottom of the outer wall of the protective shell (1), and a positioning hole (32) being provided in the middle of the bracket (2); The communication module comprises a serial terminal (19), a network terminal (37) and a wireless Z (31), wherein the serial terminal (19) and the network terminal (37) are respectively embedded in two ends of the protective housing (1), and the wireless Z (31) is installed on the side of the outer wall of the protective housing (1), and the serial terminal (19) is located directly to the right of the power module.

4. A multifunctional distribution network protection device according to claim 3, characterized in that: An interactive interface (3) is installed on the top of the outer wall of the protective housing (1), and an indicator light (8) is installed on the side of the outer wall of the protective housing (1), and the indicator light (8) is located directly above the power module.

5. The multifunctional distribution network protection device according to claim 3, characterized in that: An intelligent integrated central board (34) is installed in the middle of the bottom of the inner wall of the protective housing (1); the intelligent integrated central board (34) is connected to the communication module, the protection filter component and the power module via a data line; and a sensor, a measurement and control unit (20), an integration unit (21) and a transmission unit (22) are installed at the top of the outer wall of the intelligent integrated central board (34); The sensor comprises a current sensor (11), a voltage sensor (12), and a temperature sensor (13); A sampling circuit (26) is installed on the side of the outer wall of the sensor, and the outer wall of the sampling circuit (26) surrounds an insulating tube (36). The sensor is connected to an intelligent integrated central board (34) through the sampling circuit (26), and electronic components are distributed on the outer wall of the intelligent integrated central board (34).

6. A multifunctional distribution network protection device according to claim 5, characterized in that: An actuator (28) and a limiting component are installed at the bottom of the outer wall of the intelligent integrated central board (34), the limiting component comprising a varistor (23), a gas discharge tube (24) and a contactor (25), two card slots are provided at the top of the outer wall of the actuator (28), the actuator (28) is fixedly connected to the intelligent integrated central board (34) via the card slots, and the varistor (23), the gas discharge tube (24) and the contactor (25) are interconnected via a data line.

7. The multifunctional distribution network protection device according to claim 5, characterized in that: The top of the outer wall of the intelligent integrated central board (34) is equipped with a software control center (30), a non-volatile memory (9), a state monitoring switch (17), a distributed database (27) and a regulator (29); the bottom of the outer wall of the software control center (30) is equipped with four data entry points; the non-volatile memory (9), the state monitoring switch (17), the distributed database (27) and the regulator (29) are interconnected through capillaries; the capillaries are integrated into the interior of the intelligent integrated central board (34) by electronic movement to form a capillary network center; the bottom of the outer wall of the state monitoring switch (17) is connected to an input circuit and an output circuit.

8. The multifunctional distribution network protection device according to claim 3, characterized in that: An accelerometer (10) is installed at the bottom of the outer wall of the protective housing (1), the accelerometer (10) is fixedly connected to the bracket (2), a rubber plate (35) is installed at the top of the outer wall of the protective housing (1), a capacitor (33) is installed on the side of the outer wall of the protective housing (1), and a circuit breaker (18) is installed on the side of the outer wall of the protective housing (1).

9. A method for using a multifunctional distribution network protection device, applicable to a multifunctional distribution network protection device according to any one of claims 1 to 8, characterized in that: The method of use comprises the following steps: S1. Turn on the power module, the indicator light (8) inside the device flashes, transmitting a light signal to the user, the heat sink (7) starts to heat up slightly, confirming that the power supply is normal, the accelerometer (10) records the oscillation in real time, the pressure triggers the accelerometer (10) to generate an acceleration signal to control the device, and the accelerometer (10) also introduces a feedback loop to react to the indicator light (8) to transmit abnormal behavior of the device, and the rubber plate (35) provides additional buffering and protection for the device; S2. The serial terminal (19) and the network terminal (37) are connected to the network configuration of the communication module by connecting the wired cable, and the wireless Z (31) sends data signals to the outside world and responds to each other to ensure correct connection with the external network; S3. Use the interactive interface (3) to perform preliminary settings, including protection setting parameters, control parameters, monitoring and alarm parameters, communication parameters and system self-test, provide real-time feedback during the parameter setting process, such as prompt information of setting success / failure, and the user performs manual adjustment. Use the interactive interface (3) to set permission management to ensure that only users with corresponding permissions can modify key parameters to prevent misoperation from causing power grid accidents; S4. The device working status is monitored in real time through the status monitoring switch (17) and the software control center (30), and the settings of the sensor and the actuator (28) are adjusted through the interactive interface (3) to ensure optimal performance. The sampling circuit (26) transmits the data to the intelligent integration center board (34); S5. The distributed database (27) and the non-volatile memory (9) work in an orderly manner through the output signal control of the software control center (30), storing and analyzing data on demand; S6. The common mode inductor (4), the magnetic bead (5) and the shielding filter (6) cooperate with each other to form a shielding network to filter out high-frequency noise and electromagnetic radiation interference. The circuit breaker (18) forms an insulating electrical element when the instantaneous energy fluctuation is large, thereby suppressing the energy flow.

10. The method for using the multifunctional distribution network protection device according to claim 9, characterized in that: The method of use also includes the following steps: S7. When the voltage fluctuates, the intelligent integrated center board (34) outputs a signal to the actuator (28) to convert it into a behavioral language, regulates the operation of the limiting component, increases the resistance of the varistor (23), and the gas inside the gas discharge tube (24) is broken down and discharged, generating an oscillation signal, energy conversion occurs, and the overload voltage and current are discharged to the contactor (25). The contactor (25) controls the voltage at a lower level from the wire to the ground; S8. When an abnormality occurs, diagnosis is performed through the data entry point of the software control center (30), and the varistor (23), gas discharge tube (24) and contactor (25) in the limiting component are detected to eliminate the fault. The wireless Z (31) issues instructions without contact network signals. The software control center (30) determines the version of the security patch based on the detection situation. When the hardware is intact, the measurement and control unit (20) performs a fault simulation test. The integration unit (21) verifies the internal implementation and logic and the results are streamed from the transmission unit (22) to the interactive interface (3) and the microcontroller (14). The microcontroller (14) responds with AI automatic control. The error log is recorded in a point element in the non-volatile memory (9). The user retrieves information through the interactive interface (3) to view the event process.

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