Automatic integrated system of outdoor circuit breaker
By designing a complete set of outdoor circuit breaker automation systems, combining multiple types of sensors and artificial intelligence analysis, multi-dimensional monitoring and adaptive adjustment of the operating status of circuit breakers are achieved, solving the problem of low automation of traditional circuit breakers and improving the intelligence and operation and maintenance efficiency of the power system.
Patent Information
- Application Number
- CN202510692129.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2025-08-05
AI Technical Summary
Traditional outdoor circuit breakers have low automation and lack real-time and accurate fault diagnosis and rapid response mechanisms, resulting in extended power outage time and economic losses, which cannot meet the intelligent and multi-source information fusion processing needs of modern power systems.
Design a complete set of outdoor circuit breakers automation systems, including data acquisition module, control module, communication module, remote monitoring platform and actuator. Combined with multi-type sensors and artificial intelligence analysis, multi-dimensional monitoring, intelligent fault diagnosis and adaptive adjustment, dynamically adjust the protection threshold through the adaptive protection module, energy storage management module optimizes the energy storage status, and environmental monitoring module adapts to complex environments.
It realizes comprehensive monitoring and in-depth analysis of the operating status of the circuit breaker, improves the accuracy of fault warning, ensures the rapid and accurate operation of the circuit breaker under different working conditions, reduces the risk of operation failure of energy storage problems, reduces the influence of environmental factors, significantly shortens the fault handling time, and improves the intelligence level and operation and maintenance efficiency of the power system.
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Figure CN120433446A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power equipment, and in particular to an outdoor circuit breaker automation system with intelligent control, multi-dimensional monitoring and adaptive adjustment functions. Background Art
[0002] In the power system, outdoor circuit breakers are core equipment that ensures the safe and stable operation of circuits. Their performance directly affects the reliability of power supply. Traditional outdoor circuit breakers rely on manual operation, have a low degree of automation, and use a single monitoring method, making it difficult to accurately and real-timely grasp the operating status of the equipment. When a fault occurs, the lack of effective fault diagnosis and rapid response mechanisms often leads to extended power outages, resulting in significant economic losses. With the intelligent and digital development of power systems, higher requirements are placed on the automated control, remote monitoring, intelligent fault diagnosis, and adaptive adjustment capabilities of outdoor circuit breakers. Existing circuit breaker systems have shortcomings in deep data analysis, adaptability to complex working conditions, and multi-source information fusion processing, and are unable to meet the growing operational needs of modern power systems. Therefore, there is an urgent need to develop a complete set of outdoor circuit breaker automation systems with higher innovation, reliability, and practicality. Summary of the Invention
[0003] The purpose of the present invention is to provide a complete set of outdoor circuit breaker automation systems. Through innovative system architecture and intelligent control technology, it can realize multi-dimensional monitoring of the circuit breaker operating status, intelligent diagnosis and rapid processing of faults, and adaptive adjustment of system parameters, thereby solving the technical difficulties existing in traditional outdoor circuit breakers and improving the intelligence level and operation and maintenance efficiency of the power system.
[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions: an outdoor circuit breaker automation system, comprising: Circuit breaker body, data acquisition module, control module, communication module, remote monitoring platform and actuator; The data acquisition module is installed on the circuit breaker body; The control module is electrically connected to the data acquisition module, the communication module, and the actuator respectively; The communication module establishes a data transmission channel with the remote monitoring platform; and the actuator is mechanically connected to the operating mechanism of the circuit breaker body.
[0005] As a further improvement to the technical solution of the present invention, the data acquisition module includes a current sensor, a voltage sensor, a temperature sensor, a position sensor and a vibration sensor, and the current sensor, voltage sensor, temperature sensor, position sensor and vibration sensor are respectively integrated in set positions of the circuit breaker body, the current sensor is connected in series with the main circuit of the circuit breaker body, the voltage sensor is connected in parallel with the main circuit of the circuit breaker body, the temperature sensor is attached to the heat conductive surfaces of the contact system and the arc extinguishing system, the position sensor is set corresponding to the opening and closing positions of the contact system, and the vibration sensor is fixed to the outer casing bracket of the circuit breaker body.
[0006] As a further improvement of the technical solution of the present invention, the control module includes a central processing unit, a storage unit, an input and output interface, and an artificial intelligence analysis unit. The central processing unit is connected to the storage unit, the input and output interface, and the artificial intelligence analysis unit through a mainboard bus. The storage unit is a non-volatile memory, the input and output interface includes an analog-to-digital conversion module and a digital signal interface, and the artificial intelligence analysis unit is an independent computing chip and integrates a neural network processing unit.
[0007] As a further improvement to the technical solution of the present invention, the communication module includes a wireless communication unit and a wired communication unit. The wireless communication unit is provided with a 5G communication module and an NB-IoT communication module. The wired communication unit is provided with an industrial Ethernet interface and an optical fiber transceiver. The wireless communication unit and the wired communication unit are connected through the digital signal interface of the control module respectively.
[0008] As a further improvement to the technical solution of the present invention, the remote monitoring platform includes a server and a client, the server is configured with a data storage array and a data processing server, the client includes a PC terminal and a mobile terminal, the server and the client establish a two-way data link through a communication module, and the server's data storage array and the data processing server are connected through an internal LAN.
[0009] As a further improvement of the technical solution of the present invention, the actuator includes an opening coil and a closing coil, and the opening coil and the closing coil respectively correspond to the opening spring and closing spring settings of the circuit breaker operating mechanism, and the electromagnetic windings of the opening coil and the closing coil are electrically connected to the output relay of the control module.
[0010] As a further improvement to the technical solution of the present invention, it also includes an adaptive protection module, which is an independent hardware circuit board integrated on the main board of the control module. The adaptive protection module is provided with an analog-to-digital conversion unit and a threshold adjustment relay. The analog-to-digital conversion unit is connected to the voltage / current sensor output end of the data acquisition module, and the threshold adjustment relay is mechanically connected to the overcurrent protection unit of the circuit breaker body.
[0011] As a further improvement to the technical solution of the present invention, an energy storage management module is further included, which includes an energy storage battery pack, a charging control circuit and a status monitoring sensor. The energy storage battery pack is electrically connected to the energy storage motor of the circuit breaker operating mechanism, the charging control circuit is integrated into the power management unit of the control module, and the status monitoring sensor includes a current transformer and a voltage sensor and is connected to the positive and negative poles of the energy storage battery pack.
[0012] As a further improvement to the technical solution of the present invention, it also includes an environmental monitoring module, which includes a temperature and humidity sensor, a wind speed sensor, and a rain and snow sensor. The temperature and humidity sensor, wind speed sensor, and rain and snow sensor are respectively integrated on the outside of the protective cover of the circuit breaker body. The temperature and humidity sensor uses a capacitive sensing element, the wind speed sensor has a three-cup mechanical structure, and the rain and snow sensor is a conductive detection probe. The environmental monitoring module is connected to the control module via an independent RS-485 bus.
[0013] As a further improvement to the technical solution of the present invention, the artificial intelligence analysis unit is connected to the central processing unit via a PCI-E bus. The hardware architecture of the artificial intelligence analysis unit includes a convolutional neural network accelerator and a data cache. The capacity of the data cache is not less than 128MB, and the computing peak of the convolutional neural network accelerator is not less than 2TOPS.
[0014] The present invention has the following beneficial effects: The multi-dimensional data acquisition module works in conjunction with the artificial intelligence analysis unit to achieve comprehensive monitoring and in-depth analysis of the circuit breaker's operating status, enabling early detection of potential fault hazards. Compared with traditional systems, the accuracy of fault warnings is significantly improved.
[0015] The adaptive protection module dynamically adjusts the protection threshold according to real-time grid parameters, so that the circuit breaker can operate quickly and accurately under different working conditions, effectively improving the reliability and stability of the system.
[0016] The energy storage management module accurately monitors and optimizes the energy storage status, ensuring that the operating mechanism is in a reliable working state at all times and reducing the risk of operational failure due to energy storage problems.
[0017] The environmental monitoring module incorporates environmental data into the basis for adjusting the operation strategy, enabling the circuit breaker to better adapt to complex outdoor environments, reducing the impact of environmental factors on equipment operation, and extending the service life of the equipment.
[0018] The remote monitoring platform's powerful visualization and fault diagnosis capabilities make it easier for operation and maintenance personnel to quickly locate and troubleshoot faults, significantly shortening fault handling time and improving the power supply reliability and operation and maintenance efficiency of the power system. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings: Figure 1 This is a schematic diagram of the framework structure of an outdoor circuit breaker automation complete system of the present invention; Figure 2 Schematic diagram of the framework structure of the communication module of the present invention; Figure 3 Schematic diagram of the framework structure of the remote monitoring platform of the present invention; Figure 4 Schematic diagram of the framework structure of the actuator of the present invention. DETAILED DESCRIPTION
[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.
[0021] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0022] In the present invention, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two elements, or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0023] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one such feature. Furthermore, the technical solutions of various embodiments may be combined with each other, but only on the basis that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions contradicts or cannot be implemented, it shall be deemed that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this disclosure.
[0024] The present invention will be further described in detail below with reference to the accompanying drawings.
[0025] Reference Figures 1 to 4The present invention provides a technical solution: an outdoor circuit breaker automation system, comprising: Circuit breaker body, data acquisition module, control module, communication module, remote monitoring platform and actuator; The data acquisition module is installed on the circuit breaker body; The control module is electrically connected to the data acquisition module, the communication module, and the actuator respectively; The communication module establishes a data transmission channel with the remote monitoring platform; and the actuator is mechanically connected to the operating mechanism of the circuit breaker body.
[0026] It should be noted that the circuit breaker body consists of a contact system, an arc extinguishing system, and an operating mechanism. The contact system is used to connect and disconnect the circuit; the arc extinguishing system quickly extinguishes the arc generated when the circuit breaker interrupts the circuit, ensuring equipment safety; and the operating mechanism provides power for the opening and closing actions of the contact system.
[0027] Specifically, in this embodiment, the data acquisition module includes a current sensor, a voltage sensor, a temperature sensor, a position sensor, and a vibration sensor. The current sensor, voltage sensor, temperature sensor, position sensor, and vibration sensor are respectively integrated into set positions of the circuit breaker body. The current sensor is connected in series with the main circuit of the circuit breaker body, the voltage sensor is connected in parallel with the main circuit of the circuit breaker body, the temperature sensor is attached to the heat-conducting surfaces of the contact system and the arc extinguishing system, the position sensor is set corresponding to the opening and closing positions of the contact system, and the vibration sensor is fixed to the outer shell bracket of the circuit breaker body.
[0028] It should be noted that the current sensor is connected in series with the circuit breaker's main circuit to collect operating current; the voltage sensor is connected in parallel with the circuit breaker's main circuit to collect operating voltage; the temperature sensor is attached to the heat-conducting surfaces of the contact system and arc extinguishing system to monitor the temperature of key parts; the position sensor is set to correspond to the open and close positions of the contact system to detect the contact status in real time; and the vibration sensor is fixed to the circuit breaker's housing bracket to obtain operating vibration data. Each sensor converts the collected physical signals into electrical signals and transmits them to the control module.
[0029] Specifically, in this embodiment, the control module includes a central processing unit, a storage unit, an input / output interface, and an artificial intelligence analysis unit. The central processing unit is connected to the storage unit, the input / output interface, and the artificial intelligence analysis unit through a motherboard bus. The storage unit is a non-volatile memory, the input / output interface includes an analog-to-digital conversion module and a digital signal interface, and the artificial intelligence analysis unit is an independent computing chip and integrates a neural network processing unit.
[0030] It should be noted that the central processing unit is connected to the storage unit, input and output interface, and artificial intelligence analysis unit through the motherboard bus, and is responsible for receiving and preliminarily processing the electrical signals transmitted by the data acquisition module; the storage unit uses non-volatile memory to store preset control strategies, circuit breaker rated parameters, historical operating data, and machine learning models; the input and output interface includes an analog-to-digital conversion module and a digital signal interface to realize data transmission between modules; the artificial intelligence analysis unit is an independent computing chip with an integrated neural network processing unit to perform in-depth analysis and processing of data.
[0031] Specifically, in this embodiment, the communication module includes a wireless communication unit and a wired communication unit. The wireless communication unit is provided with a 5G communication module and an NB-IoT communication module, and the wired communication unit is provided with an industrial Ethernet interface and a fiber optic transceiver. The wireless communication unit and the wired communication unit are connected through the digital signal interface of the control module respectively, thereby realizing stable data interaction between the control module and the remote monitoring platform.
[0032] Specifically, in this embodiment, the remote monitoring platform includes a server and a client. The server is equipped with a data storage array and a data processing server for storing and processing circuit breaker operating data and building a data model. The client includes a PC terminal and a mobile terminal. The server and the client establish a two-way data link through a communication module. The server's data storage array and the data processing server are connected via an internal local area network, allowing operators to view the circuit breaker operating status, set parameters, and send control instructions in real time. It also has visual fault warning and diagnosis functions.
[0033] Specifically, in this embodiment, the actuator includes an opening coil and a closing coil, and the opening coil and the closing coil correspond to the opening spring and the closing spring of the circuit breaker operating mechanism respectively. The electromagnetic windings of the opening coil and the closing coil are electrically connected to the output relay of the control module, and the operating mechanism is driven according to the instructions of the control module to realize the opening and closing operations of the circuit breaker.
[0034] Specifically, this embodiment also includes an adaptive protection module, which is an independent hardware circuit board integrated on the main board of the control module. The adaptive protection module is provided with an analog-to-digital conversion unit and a threshold adjustment relay. The analog-to-digital conversion unit is connected to the voltage / current sensor output end of the data acquisition module, and the threshold adjustment relay is mechanically connected to the overcurrent protection unit of the circuit breaker body, and can automatically adjust the protection threshold of the circuit breaker according to real-time grid parameters.
[0035] Specifically, this embodiment further includes an energy storage management module, which includes an energy storage battery pack, a charging control circuit, and a status monitoring sensor. The energy storage battery pack is electrically connected to the energy storage motor of the circuit breaker operating mechanism. The charging control circuit is integrated into the power management unit of the control module. The status monitoring sensor includes a current transformer and a voltage sensor and is connected to the positive and negative electrodes of the energy storage battery pack. It is used to monitor and manage the energy storage status of the circuit breaker operating mechanism and optimize the energy storage process.
[0036] Specifically, this embodiment also includes an environmental monitoring module, which includes a temperature and humidity sensor, a wind speed sensor, and a rain and snow sensor. The temperature and humidity sensor, wind speed sensor, and rain and snow sensor are respectively integrated on the outside of the protective cover of the circuit breaker body. The temperature and humidity sensor uses a capacitive sensing element, the wind speed sensor has a three-cup mechanical structure, and the rain and snow sensor is a conductive detection probe. The environmental monitoring module is connected to the control module via an independent RS-485 bus, collects real-time environmental data around the circuit breaker, and transmits the data to the control module so that the control module can adjust the operating strategy based on environmental factors.
[0037] Specifically, in this embodiment, the artificial intelligence analysis unit is connected to the central processing unit through a PCI-E bus. The hardware architecture of the artificial intelligence analysis unit includes a convolutional neural network accelerator and a data buffer. The capacity of the data buffer is not less than 128MB, and the computing peak of the convolutional neural network accelerator is not less than 2TOPS. Example
[0038] During the actual operation, various sensors of the data acquisition module continuously collect data. Taking the current sensor as an example, the current signal it collects After conversion, it is transmitted to the input and output interface of the control module through the analog signal transmission line. The analog-to-digital conversion module of the input and output interface converts the analog current signal into Convert to digital signal , the conversion formula is: in, and are the measurement lower limit and upper limit of the current sensor respectively, and n is the conversion bit number of the analog-to-digital conversion module.
[0039] The central processing unit receives the digital signal After that, preliminary data filtering and preprocessing are performed to remove noise interference. The processed data is then transmitted to the artificial intelligence analysis unit. The artificial intelligence analysis unit analyzes the current data based on the preset machine learning model. For example, by calculating the root mean square value of the current , the formula is:
[0040] in, is the number of sampling points, For the The current value of the sampling point. Compare with historical data and standard thresholds to determine whether the current is abnormal.
[0041] When the adaptive protection module is working, the analog-to-digital conversion unit collects the output signals of the voltage / current sensor and obtains the real-time grid parameters after processing. According to the preset protection algorithm, the protection threshold T under the current working conditions is calculated. The calculation formula is: in, is the initial protection threshold, is the voltage change, is the current change, and is a coefficient set based on grid characteristics. If the detected current exceeds the calculated protection threshold T, the control module immediately sends a trip command to the actuator. The trip coil is energized, driving the operating mechanism to quickly trip the circuit, disconnecting the faulty circuit. Simultaneously, the control module transmits fault information and related data to the remote monitoring platform via the communication module.
[0042] In the energy storage management module, the status monitoring sensor collects the voltage V and current of the energy storage battery pack in real time By calculating the remaining capacity SOC of the battery, the formula is: in, is the initial remaining capacity of the battery, is the rated capacity of the battery, is the starting time, The current time. When the SOC falls below the set threshold, the charging control circuit starts and uses an appropriate charging algorithm, such as a constant current-constant voltage charging algorithm, based on the battery characteristics and current state to charge the energy storage battery pack, ensuring that the energy storage device reaches the optimal energy storage state in the shortest possible time.
[0043] The environmental monitoring module collects temperature, humidity, wind speed, and rain / snow data, which is then transmitted to the control module via the RS-485 bus. The control module combines this environmental data with the circuit breaker's operating status to adjust its operational strategy. For example, if the ambient temperature is detected to be too high, the cooling fan speed is appropriately increased to reduce the temperature of key circuit breaker components. If the wind speed exceeds a certain threshold, the locking force of the operating mechanism is increased to prevent malfunction of the circuit breaker due to high winds.
[0044] The remote monitoring platform's server receives and stores data transmitted by the control module. Using a data processing server, it conducts in-depth data analysis and mining to build fault prediction models and equipment health assessment models. The client displays intuitive visual charts showing circuit breaker operating status, fault warning information, and equipment health index. Operations and maintenance personnel can use the client to easily set control parameters and send control commands, enabling remote monitoring and management of the circuit breaker.
[0045] In summary, the outdoor circuit breaker automation system provided by the present invention realizes the intelligent and automated operation of the circuit breaker through the coordinated work of various modules, effectively improving the operational reliability and operation and maintenance efficiency of the power system.
[0046] Specifically, the working principle of the present invention is: 1. Data Acquisition and Signal Processing Principles The data acquisition module's multiple types of sensors enable comprehensive monitoring of the circuit breaker's operating status through physical connections: Current / voltage acquisition: A current sensor (such as a Rogowski coil or electromagnetic transformer) is connected in series with the main circuit to convert the alternating current into a proportional voltage signal based on the principle of electromagnetic induction; a voltage sensor (such as a capacitor voltage divider transformer) is connected in parallel with the main circuit to obtain the voltage signal through the capacitor voltage divider network. Both types of signals are transmitted to the input and output interfaces of the control module via a shielded cable and converted into digital signals by the analog-to-digital converter (ADC). , the conversion accuracy meets 0.2 S Level 1 electricity metering standard. Temperature monitoring: The thermocouple temperature sensor is attached to the heat-conducting surface of the contact system conductive rod and the arc extinguishing chamber porcelain sleeve, and the temperature difference is converted into a millivolt voltage signal by the Seebeck effect. G =100) and analog-to-digital conversion to obtain temperature data , resolution up to . Contact position and vibration sensing: Position sensors (such as Hall effect switches) are aligned with the permanent magnet position of the contact system, outputting high and low level signals through magnetic field changes to reflect the contact opening and closing status in real time; vibration sensors (MEMS accelerometers) are fixed to the circuit breaker bracket to collect three-dimensional vibration acceleration signals , through a bandpass filter (cut-off frequency 10−1000 Hz ) is transmitted to the control module after removing the environmental noise. 2. Working Principle of Intelligent Control Module The control module uses a layered processing architecture to implement data processing and instruction generation: Preprocessing layer (CPU): Perform sliding window filtering on the input digital signal (window size N=128), the calculation formula is: in X Represents a signal sequence such as current and voltage, k is the current sampling point, and the filtered signal is used for real-time display and preliminary status judgment. Deep analysis layer (artificial intelligence analysis unit): The integrated convolutional neural network (CNN) model extracts features from the vibration signal and calculates the local feature map layer by layer using a 3×3 convolution kernel (step size 2). The formula is: in l is the number of network layers, σ is the ReLU activation function, W is the convolution kernel weight, b The trained model can identify 12 types of mechanical faults, such as contact wear and loose bearings, with an accuracy rate exceeding 95%. At the same time, a temperature prediction model is established based on the long short-term memory network (LSTM) and historical temperature data is input. , output the temperature forecast value for the next hour
[0047] , used for overheating fault warning. The decision-making and execution layer: The central processing unit generates control commands based on AI analysis results and preset logic. For example, if the contact opening signal (position sensor outputs a low level) and the opening coil current (greater than 80% of the rated value) persists for more than 50ms, it is determined to be a "failed opening" fault, immediately triggering a secondary opening command and alerting the remote platform. 3. Working Principle of Adaptive Protection Mechanism The adaptive protection module dynamically adjusts the protection threshold through hardware circuits: Real-time parameter acquisition: The analog-to-digital conversion unit (16-bit ADC) acquires the voltage / current sensor signal at a sampling rate of 10kHz and calculates the effective value , the formula is: in M =1024 is the number of sampling points in a single cycle. Threshold calculation model: Based on the grid operation status (normal / overload / fault), the overcurrent protection threshold is dynamically adjusted through the threshold adjustment relay (16-bit digital potentiometer) , the calculation formula is: in is the rated current of the circuit breaker, is the PID adjustment parameter, This model allows for adaptive adjustment of the protection action time within the range of 0.02-0.5s to meet the disconnection requirements of different short-circuit faults (such as metallic shorts and arc shorts).
[0048] 4. Working Principle of Energy Storage Management Module The energy storage management module optimizes the energy storage process of the operating mechanism through closed-loop control: Energy storage status monitoring: Current transformer (accuracy level 0.5) and voltage sensor collect the charge and discharge current of energy storage battery pack in real time and terminal voltage , calculate the remaining capacity by the ampere-hour integration method SOC : in η ( t ) is the charge and discharge efficiency (0.95 for charging and 0.9 for discharging), is the rated capacity of the battery. Charging strategy control: When SOC <20%, start constant current charging (current 0.5 C );when ≥28.8 V (for 24V battery pack) switches to constant voltage charging (voltage 28.8 V) until the charging current drops to 0.05 C The charging control circuit (PWM modulation chip) adjusts the charging current in real time to ensure that the energy storage motor completes energy storage within 15 seconds, meeting the energy requirement of the circuit breaker's 0.06s rapid opening. 5. Communication and Remote Monitoring Principles The communication module adopts dual-link redundant design to ensure data transmission reliability: Wireless communication unit: The 5G communication module (supporting NSA / SA dual-mode) transmits real-time monitoring data at a rate of 100Mbps under normal operating conditions (for example, sending a complete status packet every 200ms). The NB-IoT module automatically switches in areas with weak signal coverage and transmits heartbeat packets (once every 10 minutes) with ultra-low power consumption (standby current < 10μA) to ensure that the device's online status can be checked. Wired communication unit: The industrial Ethernet interface (10 / 100Mbps adaptive) connects to the substation integrated automation system through the Modbus TCP protocol and supports the IEC 61850 standard data model; the optical fiber transceiver adopts an SC interface with a transmission distance of up to 20km, meeting the long-distance communication needs of remote areas. Remote control logic: The opening and closing commands sent by the client are subject to triple verification: operator authority authentication (RBAC role control), command legitimacy verification (CRC-16 checksum), and circuit breaker status interlock (executed only when the circuit breaker is in "remote" control mode and there is no fault signal) to ensure control safety.
[0049] 6. Actuator driving principle The actuator achieves precise driving of the operating mechanism through electromagnetic coupling: Tripping process: The control module outputs a 24V DC signal to the tripping coil. The electromagnetic winding generates a magnetic field to attract the iron core, and the energy stored in the tripping spring is released through the connecting rod mechanism. The contact system completes the disconnection within 50ms, and the arc extinguishing chamber establishes sufficient arc extinguishing voltage (≥1.5 times the system voltage) within 10μs after the contacts are separated. Closing process: After the closing coil is energized, the iron core pushes the cam mechanism to compress the closing spring. When the contacts touch, the closing coil current is fed back to the control module through the current sensor, triggering the "contact contact confirmation" logic to ensure that the closing position signal (position sensor high level) is stably output within 20ms. Through the above-mentioned multi-module collaborative working principle, the present invention realizes the full process automation from data acquisition, intelligent processing, adaptive control to remote operation and maintenance, significantly improving the reliability and intelligence level of outdoor circuit breakers under complex working conditions.
[0050] In summary, compared with the prior art, the present invention has the following beneficial effects: The multi-dimensional data acquisition module works in conjunction with the artificial intelligence analysis unit to achieve comprehensive monitoring and in-depth analysis of the circuit breaker's operating status, enabling early detection of potential fault hazards. Compared with traditional systems, the accuracy of fault warnings is significantly improved.
[0051] The adaptive protection module dynamically adjusts the protection threshold according to real-time grid parameters, so that the circuit breaker can operate quickly and accurately under different working conditions, effectively improving the reliability and stability of the system.
[0052] The energy storage management module accurately monitors and optimizes the energy storage status, ensuring that the operating mechanism is in a reliable working state at all times and reducing the risk of operational failure due to energy storage problems.
[0053] The environmental monitoring module incorporates environmental data into the basis for adjusting the operation strategy, enabling the circuit breaker to better adapt to complex outdoor environments, reducing the impact of environmental factors on equipment operation, and extending the service life of the equipment.
[0054] The remote monitoring platform's powerful visualization and fault diagnosis capabilities make it easier for operation and maintenance personnel to quickly locate and troubleshoot faults, significantly shortening fault handling time and improving the power supply reliability and operation and maintenance efficiency of the power system.
[0055] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.
Claims
1. An outdoor circuit breaker automation system, characterized in that: include: Circuit breaker body, data acquisition module, control module, communication module, remote monitoring platform and actuator; The data acquisition module is installed on the circuit breaker body; The control module is electrically connected to the data acquisition module, the communication module, and the actuator respectively; The communication module establishes a data transmission channel with the remote monitoring platform; and the actuator is mechanically connected to the operating mechanism of the circuit breaker body.
2. The outdoor circuit breaker automation system according to claim 1, characterized in that: The data acquisition module includes a current sensor, a voltage sensor, a temperature sensor, a position sensor, and a vibration sensor. The current sensor, voltage sensor, temperature sensor, position sensor, and vibration sensor are respectively integrated into set positions of the circuit breaker body. The current sensor is connected in series with the main circuit of the circuit breaker body, the voltage sensor is connected in parallel with the main circuit of the circuit breaker body, the temperature sensor is attached to the heat-conducting surfaces of the contact system and the arc extinguishing system, the position sensor is set corresponding to the opening and closing positions of the contact system, and the vibration sensor is fixed to the outer shell bracket of the circuit breaker body.
3. The outdoor circuit breaker automation system according to claim 1, characterized in that: The control module includes a central processing unit, a storage unit, an input / output interface, and an artificial intelligence analysis unit. The central processing unit is connected to the storage unit, the input / output interface, and the artificial intelligence analysis unit through a motherboard bus. The storage unit is a non-volatile memory. The input / output interface includes an analog-to-digital conversion module and a digital signal interface. The artificial intelligence analysis unit is an independent computing chip and integrates a neural network processing unit.
4. The outdoor circuit breaker automation system according to claim 1, characterized in that: The communication module includes a wireless communication unit and a wired communication unit. The wireless communication unit is equipped with a 5G communication module and an NB-IoT communication module. The wired communication unit is equipped with an industrial Ethernet interface and an optical fiber transceiver. The wireless communication unit and the wired communication unit are connected through the digital signal interface of the control module.
5. The outdoor circuit breaker automation system according to claim 1, characterized in that: The remote monitoring platform includes a server and a client. The server is equipped with a data storage array and a data processing server. The client includes a PC terminal and a mobile terminal. The server and the client establish a two-way data link through a communication module. The server's data storage array and the data processing server are connected through an internal local area network.
6. The outdoor circuit breaker automation system according to claim 1, characterized in that: The actuator includes an opening coil and a closing coil, which correspond to the opening spring and closing spring of the circuit breaker operating mechanism respectively, and the electromagnetic windings of the opening coil and the closing coil are electrically connected to the output relay of the control module.
7. The outdoor circuit breaker automation system according to claim 1, characterized in that: It also includes an adaptive protection module, which is an independent hardware circuit board integrated on the main board of the control module. The adaptive protection module is provided with an analog-to-digital conversion unit and a threshold adjustment relay. The analog-to-digital conversion unit is connected to the voltage / current sensor output end of the data acquisition module, and the threshold adjustment relay is mechanically connected to the overcurrent protection unit of the circuit breaker body.
8. The outdoor circuit breaker automation system according to claim 1, characterized in that: It also includes an energy storage management module, which includes an energy storage battery pack, a charging control circuit and a status monitoring sensor. The energy storage battery pack is electrically connected to the energy storage motor of the circuit breaker operating mechanism. The charging control circuit is integrated into the power management unit of the control module. The status monitoring sensor includes a current transformer and a voltage sensor and is connected to the positive and negative poles of the energy storage battery pack.
9. The outdoor circuit breaker automation system according to claim 1, characterized in that: It also includes an environmental monitoring module, which includes a temperature and humidity sensor, a wind speed sensor, and a rain and snow sensor. The temperature and humidity sensor, wind speed sensor, and rain and snow sensor are respectively integrated on the outside of the protective cover of the circuit breaker body. The temperature and humidity sensor uses a capacitive sensing element, the wind speed sensor has a three-cup mechanical structure, and the rain and snow sensor is a conductive detection probe. The environmental monitoring module is connected to the control module through an independent RS-485 bus.
10. The outdoor circuit breaker automation system according to claim 3, characterized in that: The artificial intelligence analysis unit is connected to the central processing unit via a PCI-E bus. The hardware architecture of the artificial intelligence analysis unit includes a convolutional neural network accelerator and a data buffer. The capacity of the data buffer is not less than 128MB, and the computing peak of the convolutional neural network accelerator is not less than 2TOPS.
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