Energy-saving power distribution monitoring equipment and monitoring system thereof

Abstract

The invention discloses energy-saving power distribution monitoring equipment and a monitoring system thereof, and relates to the technical field of power distribution systems, and the equipment comprises an electromagnetic environment sensing module, a self-adaptive anti-interference module, a three-level net grounding module and a central control module. According to the invention, through cooperation of electromagnetic environment perception, adaptive anti-interference and a three-level mesh grounding module of the energy-saving power distribution monitoring equipment, the anti-interference performance of the equipment and the accuracy of power distribution parameter acquisition are improved, and the traditional monitoring failure limitation is broken through; a weighted average energy consumption analysis algorithm and four functional unit closed loops are integrated in the system, the effects of monitoring intelligent upgrading and quantitative energy saving are achieved, the problems of extensive analysis and operation and maintenance lag in the prior art are solved, the energy-saving management efficiency is remarkably improved, and the operation and maintenance cost and difficulty are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution systems, in particular to an energy-saving power distribution monitoring device and a monitoring system thereof. BACKGROUND

[0002] With the rapid development of industrial production scale and civil building intelligence, as the core link of energy transmission and distribution, the operation stability, data monitoring accuracy and energy-saving management level of the power distribution system are directly related to the safety and efficiency of production and life and the energy utilization efficiency. At present, whether it is the heavy power distribution network in the high-energy-consuming industrial field or the civil power distribution system in commercial complexes and residential areas, they all face complex electromagnetic environment interference, real-time monitoring demand of power distribution parameters and urgent task of energy-saving optimization management. On the one hand, various electromagnetic interference signals such as narrowband interference and pulse interference existing in the power distribution scene are easy to cause the distortion of key parameters such as voltage and current collected by the monitoring device, affecting the accurate judgment of the operation state of the power distribution system; on the other hand, under the demand of energy saving and consumption reduction, the energy consumption monitoring and optimization requirements of various power users on the power distribution system are continuously improved, and it is urgent to develop scientific energy-saving strategies through accurate energy consumption data collection and analysis. Under this background, the power distribution monitoring device and the supporting system with strong anti-interference ability, high data collection accuracy and support for energy-saving analysis have become the key technical support to ensure the safe and stable operation of the power distribution system and realize the efficient use of energy.

[0003] However, the existing traditional power distribution monitoring technology still has many deficiencies, which is difficult to meet the high-precision monitoring and intelligent energy-saving demand of the current power distribution system. In terms of anti-interference ability, the traditional monitoring device mostly adopts a single type of interference filtering method, lacks dynamic adaptation ability to different frequency and different type interference signals, and the grounding design is relatively simple, which is easy to introduce additional interference due to ground potential difference, resulting in low reliability of monitoring data; in terms of data collection and processing, the sensor configuration of the traditional device is single, the data sampling frequency and transmission efficiency are difficult to match the real-time monitoring demand of complex power distribution scene, and lacks efficient algorithm support, which cannot quickly calculate the optimal filtering parameters to cope with dynamic interference; in terms of system collaborative management, the traditional power distribution monitoring system mostly focuses on data collection of single device, lacks unified data storage, quantitative analysis and remote control function, and the energy-saving effect evaluation mostly depends on experience judgment rather than accurate algorithm, at the same time, the alarm response lags behind, which is difficult to realize multi-device collaborative operation and maintenance and timely abnormal disposal. These defects seriously restrict the intelligent level of power distribution system monitoring and the energy-saving management efficiency, therefore, it is necessary to develop an energy-saving power distribution monitoring device and a monitoring system thereof to solve the above problems. SUMMARY

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an energy-saving power distribution monitoring device and system. This device captures interference in the power distribution scenario through an electromagnetic environment sensing module, dynamically suppresses interference through an adaptive anti-interference module, and eliminates ground potential differences through a three-level mesh grounding module, ensuring accurate data acquisition. The system incorporates a weighted average energy consumption analysis algorithm, coupled with data storage, visual analysis, remote control, and alarm notification units, to achieve an intelligent upgrade of power distribution monitoring. This invention solves the problems of weak anti-interference, inaccurate data, and coarse analysis in traditional equipment, significantly improving energy-saving management efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: On the one hand, an energy-saving power distribution monitoring device, the device comprising: an electromagnetic environment sensing module, an adaptive anti-interference module, a three-level mesh grounding module, and a central control module; The electromagnetic environment sensing module is equipped with a narrowband interference sensor and a pulse interference sensor, which are used to collect interference information in the power distribution scenario and convert it into digital signals for transmission to the central control module. The adaptive interference suppression module includes an adjustable active filter and an adaptive step-size LMS algorithm submodule. It can drive the adjustable active filter to suppress interference by calculating optimal filter parameters. The adaptive step-size LMS algorithm submodule communicates with the central control module via an AXI bus and drives the adjustable active filter via an I2C interface. The calculation formula for the adaptive step-size LMS algorithm submodule is as follows: in, This is the filter coefficient vector at time k, used to characterize the filter parameter configuration at the current time. This is the filter coefficient vector at time k-1, which represents the filter parameter configuration at the previous time step. for The transpose of the vector is used to perform a dot product operation with the input signal vector; The adaptive step size at time k is used to control the update magnitude of the filter coefficients; This is the initial step size, which serves as the reference value for step size adjustment; This is the step size adjustment factor, used to adjust the step size according to the magnitude of the error; This is the error signal at time k, which is the difference between the actual output and the ideal output; Let be the desired output signal at time k, i.e. the ideal monitoring signal without interference; This is the input interference signal vector at time k, containing the interference signal data collected at the current time. Error signal The absolute value is used to reflect the magnitude of the error; The three-level mesh grounding module consists of a main grounding electrode, an equipment grounding grid, and a signal grounding grid, which are connected by an equalizing strip to eliminate ground potential difference. The central control module is electrically connected to each of the aforementioned modules and is used to receive module data, collect filtered power distribution parameters, and generate energy-saving adjustment commands.

[0006] Furthermore, the electromagnetic environment sensing module is connected to the central control module via an SPI interface and uploads interference data every 10ms; the narrowband interference sensor has a detection frequency range of 1kHz-100MHz and a detection accuracy of ±0.5dBμV; the pulse interference sensor has a response time ≤1μs and an adjustable detection threshold range of 10V-500V; the two narrowband interference sensors are respectively deployed at the device power input port and signal output port, and the pulse interference sensor is deployed on the top of the device housing.

[0007] Furthermore, the adjustable active filter is connected in series with the power distribution parameter acquisition circuit, with a filtering bandwidth of 10Hz-200MHz and an adjustable attenuation coefficient of 10dB-60dB; the adjustable active filter is connected to the analog signal acquisition channel of the central control module through a terminal block.

[0008] Furthermore, in the three-level mesh grounding module, the main grounding electrode is connected to the equipment grounding grid via a 30mm×3mm copper busbar, and the equipment grounding grid and the signal grounding grid are connected via a Φ8mm copper equalizing strip; the main grounding electrode is made of copper-clad steel and buried at a depth of ≥2.5m; the equipment grounding grid is set around the equipment shell, and the signal grounding grid is arranged independently with a distance of ≥1m between the two; the overall grounding system has a grounding resistance of ≤1Ω and a potential difference of ≤50mV between each grounding node.

[0009] Furthermore, the central control module and the three-level mesh grounding module are electrically connected through grounding terminals; the central control module adopts an ARM architecture chip and integrates multiple ADCs to collect voltage and current parameters; it is equipped with an RS485 interface and a 4G module, the RS485 interface connects to the control equipment in the power distribution room, and the 4G module enables remote communication with the back-end system; it has fault self-diagnosis and backup anti-interference functions, and can detect the module status and cut off non-core data transmission interfaces when interference exceeds the standard.

[0010] On the other hand, an energy-saving power distribution monitoring system includes: energy-saving power distribution monitoring equipment, and a background monitoring system that is communicatively connected to the energy-saving power distribution monitoring equipment; The energy-saving power distribution monitoring equipment communicates bidirectionally with the background monitoring system to upload interference data, filtering parameters, power distribution parameters and equipment status data, and to receive operation parameter configuration instructions and anti-interference strategy instructions issued by the background monitoring system. The background monitoring system includes a data storage unit, a visual analysis unit, a remote control unit, and an alarm notification unit. The data storage unit is used to receive various types of data uploaded by energy-saving power distribution monitoring equipment, classify and store the data and create indexes, and support historical data queries; The visual analysis unit is used to retrieve data from the data storage unit, display data change trends in the form of charts, and analyze the energy-saving effect of the power distribution system based on the weighted average energy consumption analysis algorithm. The remote control unit is used to generate operating parameter adjustment instructions for the energy-saving power distribution monitoring equipment based on the analysis results of the visual analysis unit, and then send them to the energy-saving power distribution monitoring equipment through the communication link. The alarm notification unit is used to monitor the data in the data storage unit in real time. When the data exceeds the preset threshold, an alarm is triggered, and the alarm information is pushed to the designated receiving end through a preset method.

[0011] Furthermore, the visual analysis unit calculates the power factor and energy consumption reduction rate using the following formula, based on a weighted average energy consumption analysis algorithm: The formula for calculating the power factor is: in, The power factor is used to characterize the proportion of active power to total power in a power distribution system. The active power collected by energy-saving power distribution monitoring equipment is the actual electrical energy consumed in the circuit. The reactive power collected by energy-saving power distribution monitoring equipment is the power used for the conversion of electric and magnetic fields in the circuit. The formula for calculating the energy consumption reduction rate is: Energy consumption reduction rate = (Energy consumption before renovation - Energy consumption after renovation) / Energy consumption before renovation × 100% Among them, the energy consumption reduction rate is an indicator for measuring the energy-saving effect; the energy consumption before the renovation is the average monthly energy consumption of the power distribution room before the deployment of the energy-saving power distribution monitoring equipment; and the energy consumption after the renovation is the average monthly energy consumption of the power distribution room after the deployment of the energy-saving power distribution monitoring equipment.

[0012] Furthermore, the data storage unit is connected to the visual analysis unit and the remote control unit via an internal bus, supporting simultaneous access to ≤1000 energy-saving power distribution monitoring devices; the data storage period is ≥1 year, and the stored data types include interference data, power distribution parameters, and equipment status data.

[0013] Furthermore, the alarm notification unit and the data storage unit are connected through a data interface. The alarm triggering conditions are: interference intensity ≥15dBμV, receiving fault information uploaded by the energy-saving power distribution monitoring equipment, and daily energy consumption exceeding the historical average by 20%. The alarm notification methods include background pop-up, SMS, and email, and three of the receiving terminals can be configured. The alarm delay is ≤10s.

[0014] Compared with existing technologies, this energy-saving power distribution monitoring equipment and its monitoring system have the following advantages: I. This invention effectively solves the core problems of insufficient anti-interference capability and low reliability of monitoring data in traditional power distribution monitoring equipment by constructing an energy-saving power distribution monitoring device that works in concert with an electromagnetic environment sensing module, an adaptive anti-interference module, and a three-level mesh grounding module. Specifically, the electromagnetic environment sensing module can comprehensively capture interference information in the power distribution scenario, providing basic data support for anti-interference processing; the adaptive anti-interference module can dynamically calculate optimal filtering parameters, suppress various interference signals in real time, and ensure the stability of data acquisition; the three-level mesh grounding module, through a reasonable grounding structure design, eliminates the interference caused by ground potential difference. The synergistic effect of these three components significantly improves the adaptability of the equipment to complex power distribution environments, ensures the accuracy of power distribution parameter acquisition after filtering, and provides reliable data for the generation of subsequent energy-saving adjustment commands, breaking the limitation of traditional equipment where monitoring fails due to interference.

[0015] II. This invention integrates a weighted average energy consumption analysis algorithm into the energy-saving power distribution monitoring system, and combines it with a collaborative architecture of data storage unit, visual analysis unit, remote control unit, and alarm notification unit. This achieves an intelligent upgrade of power distribution monitoring and energy-saving management, solving the problems of crude energy-saving analysis and lagging operation and maintenance response in traditional power distribution systems. The visual analysis unit, based on the weighted average energy consumption analysis algorithm, can quantitatively evaluate the energy-saving effect, avoiding the drawbacks of traditional systems that rely on experience-based judgment. The four functional units of the background monitoring system form a closed-loop management process. The data storage unit provides a data foundation for long-term monitoring and analysis, the remote control unit can accurately adjust equipment parameters based on the analysis results, and the alarm notification unit can push abnormal information in real time. This design upgrades power distribution monitoring from single data collection to integrated management of "data analysis - intelligent control - abnormal early warning," significantly improving the efficiency of energy-saving management of power distribution systems and reducing operation and maintenance costs and difficulties.

[0016] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1It is the structural block diagram of the energy-saving power distribution monitoring device; Figure 2 It is the architecture diagram of the energy-saving power distribution monitoring system. Specific implementation manners

[0019] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following combines the accompanying drawings and preferred embodiments to detail the specific implementation manners, structures, features and their effects of the present invention as follows.

[0020] Embodiment 1: Energy-saving power distribution monitoring application in the scenario of industrial power distribution rooms The central power distribution room of a large manufacturing factory is responsible for supplying power to multiple high-power production equipment such as heavy machine tools and compressors in the workshop. When the equipment is running, a large amount of electromagnetic signals such as narrowband interference and pulse interference will be generated, resulting in distorted data acquisition of traditional monitoring equipment, and the energy consumption of the power distribution system fluctuates greatly. It is necessary to achieve operation status control and energy-saving optimization through precise monitoring and anti-interference processing. The energy-saving power distribution monitoring device and its monitoring system of the present invention can meet the requirements of this scenario.

[0021] Equipment deployment and operation process Deployment of the energy-saving power distribution monitoring device: Install the energy-saving power distribution monitoring device in the main power distribution cabinet of the power distribution room. First, complete the hardware connection of each module: Fix the two narrowband interference sensors of the electromagnetic environment perception module at the power input port and the signal output port of the power distribution cabinet respectively to capture the narrowband interference signals generated when the production equipment starts; Install the pulse interference sensor on the top of the equipment housing to cover the pulse interference in different directions in the power distribution room. The central control module uses an ARM architecture chip and is connected to the electromagnetic environment perception module through the SPI interface to ensure that the module uploads interference data every 10 ms; Communicate with the adaptive step LMS algorithm sub-module of the adaptive anti-interference module through the AXI bus, and at the same time connect to the adjustable active filter through the I2C interface to achieve the linkage control of the algorithm and the filter. The calculation formula of the adaptive step LMS algorithm sub-module is: Among them, is the filter coefficient vector at the k-th moment, which is used to characterize the parameter configuration of the filter at the current moment; is the filter coefficient vector at the (k - 1)-th moment, that is, the filter parameter configuration at the previous moment; is the transposed vector of, which is used for dot product operation with the input signal vector; is the adaptive step at the k-th moment, which is used to control the update amplitude of the filter coefficient; This is the initial step size, which serves as the reference value for step size adjustment; This is the step size adjustment factor, used to adjust the step size according to the magnitude of the error; This is the error signal at time k, which is the difference between the actual output and the ideal output; Let be the desired output signal at time k, i.e. the ideal monitoring signal without interference; This is the input interference signal vector at time k, containing the interference signal data collected at the current time. Error signal The absolute value is used to reflect the magnitude of the error. In the three-level mesh grounding module, the main grounding electrode is made of copper-clad steel and buried in the soil outside the power distribution room at the required depth. It is connected to the equipment grounding grid surrounding the power distribution cabinet through a 30mm×3mm copper busbar, and then connected to the independently arranged signal grounding grid through an 8mm copper equipotential bonding strip. This ensures that the potential difference between each grounding node is controlled within a preset range, eliminating grounding interference. Figure 1 As shown.

[0022] Equipment Operation and Interference Suppression: When the workshop production equipment starts, the narrowband interference sensor and pulse interference sensor of the electromagnetic environment sensing module synchronously collect interference information in the power distribution line, convert it into digital signals, and transmit it to the central control module in real time via the SPI interface. After receiving the interference data, the central control module triggers the adaptive step size LMS algorithm submodule of the adaptive interference suppression module. This submodule calculates the optimal filtering parameters based on the received interference data and transmits the parameter commands to the central control module via the AXI bus. The central control module then drives the adjustable active filter through the I2C interface to adjust the filter bandwidth and attenuation coefficient, suppressing the currently collected narrowband and pulse interference in real time. At the same time, the three-level mesh grounding module, through a reasonable grounding structure, avoids external grounding interference from affecting the central control module's acquisition of power distribution parameters, ensuring that the acquired power distribution parameters are accurate and reliable.

[0023] The background monitoring system works collaboratively: Energy-saving power distribution monitoring equipment connects to the communication gateway of the background monitoring system via a 4G module. Using the MQTT protocol, it uploads collected interference data, filtering parameters, power distribution parameters, and equipment status data to the background data storage unit. The data storage unit categorizes and indexes the received data, supports historical data queries, and can simultaneously connect to similar monitoring equipment in multiple other power distribution rooms within the factory, meeting the needs of centralized management of multiple devices. The visual analysis unit retrieves data from the data storage unit and displays the changing trends of power distribution parameters and energy consumption through charts such as line graphs and bar charts. Based on a weighted average energy consumption analysis algorithm, it analyzes the energy-saving effect of the power distribution system, generating an analysis report including power factor and energy reduction rate. The power factor calculation formula is: in, The power factor is used to characterize the proportion of active power to total power in a power distribution system. The active power collected by energy-saving power distribution monitoring equipment is the actual electrical energy consumed in the circuit. The reactive power collected by energy-saving power distribution monitoring equipment is the power used for the conversion of electric and magnetic fields in the circuit. The formula for calculating the energy consumption reduction rate is: Energy consumption reduction rate = (Energy consumption before renovation - Energy consumption after renovation) / Energy consumption before renovation × 100% Among them, the energy consumption reduction rate is an indicator for measuring the energy-saving effect; the energy consumption before the renovation is the average monthly energy consumption of the power distribution room before the deployment of the energy-saving power distribution monitoring equipment; the energy consumption after the renovation is the average monthly energy consumption of the power distribution room after the deployment of the energy-saving power distribution monitoring equipment. When factory managers find that the energy consumption of a certain power distribution line is too high through analysis reports, they can generate an operating parameter adjustment command through the remote control unit. The command is sent to the central control module of the energy-saving power distribution monitoring equipment through the communication link. The central control module adjusts the filtering parameters of the adaptive anti-interference module or the operating parameters of the power distribution line to optimize energy consumption. If the data storage unit detects that the interference intensity at a certain moment exceeds the preset threshold, or receives fault information uploaded by the equipment, the alarm notification unit will immediately trigger an alarm and push it to the terminal of the operation and maintenance personnel through background pop-ups and SMS, ensuring that the operation and maintenance personnel can respond and handle the situation in a short time.

[0024] Example 2: Energy-saving power distribution monitoring application in commercial complex power distribution system scenario A commercial complex in a certain city includes various business formats such as shopping malls, office buildings, and catering areas. The power distribution system needs to supply power to lighting, air conditioning, elevators, catering equipment, etc. in different areas. The power load fluctuates significantly with weekdays / holidays and day / night. Moreover, there is electromagnetic interference generated by lighting equipment and communication equipment in the power distribution room. Accurate monitoring is required to achieve load control and energy-saving optimization. The energy-saving power distribution monitoring equipment and its monitoring system of the present invention can be adapted to this scenario.

[0025] Equipment deployment and operation process Deployment of Energy-Saving Power Distribution Monitoring Equipment: Energy-saving power distribution monitoring equipment is installed in the main power distribution room on the basement floor of the commercial complex and in the distribution rooms on each floor. The equipment in the main power distribution room is responsible for monitoring the overall operation status of the power distribution system, while the equipment in the distribution rooms is responsible for monitoring the regional power consumption on the corresponding floors. Regarding the deployment of the electromagnetic environment sensing module, narrowband interference sensors in the main power distribution room are installed at the main power input port and the main signal output port, while narrowband interference sensors in each distribution room are installed at the corresponding floor power input and signal output ports. Pulse interference sensors are uniformly installed on the top of each equipment housing to capture pulse interference generated by lighting and communication equipment within the power distribution room. The central control module connects to the electromagnetic environment sensing module via an SPI interface to ensure high-frequency transmission of interference data; it connects to the adaptive step size LMS algorithm submodule of the adaptive interference suppression module via an AXI bus and to an adjustable active filter via an I2C interface to achieve interference suppression linkage. In the three-level mesh grounding module, the main grounding electrode of the main distribution room is made of copper-clad steel with a burial depth that meets the requirements. It is connected to the equipment grounding grid through a copper busbar, and then connected to the signal grounding grid through a copper equipotential bonding strip. The grounding structure of the distribution room is consistent with that of the main distribution room, ensuring the elimination of grounding interference in the entire complex's power distribution system. Figure 2 As shown.

[0026] Equipment Operation and Load Monitoring: During the weekday morning peak hours of 8:30-9:30, air conditioners, computers, and other equipment in the office building area are activated. The electromagnetic environment sensing module in the power distribution room collects narrowband interference signals from this area and transmits them to the central control module via the SPI interface. The central control module activates the adaptive step-size LMS algorithm submodule. This submodule calculates filtering parameters based on the interference data and drives an adjustable active filter through the AXI bus and I2C interface to suppress interference signals, ensuring the accuracy of the floor voltage and current parameters collected by the central control module. Simultaneously, the monitoring equipment in the main power distribution room collects load data from the overall power distribution system and uploads it to the background monitoring system via a 4G module, reflecting the real-time fluctuations in power load in each area. After the shopping mall and catering areas close from 22:00 to 6:00 the next day, the monitoring equipment continues to collect power distribution parameters under low load conditions, capturing energy consumption data of standby equipment at night, providing a basis for energy-saving analysis.

[0027] The background monitoring system's energy-saving management and alarm handling: The data storage unit receives data uploaded from the main power distribution room and various sub-distribution rooms, categorizing and storing overall and regional power distribution parameters and energy consumption data, with a storage period sufficient for long-term analysis. The visual analysis unit, based on a weighted average energy consumption analysis algorithm, analyzes energy consumption data for different business types and time periods. For example, it compares shopping mall energy consumption on weekdays and holidays, calculates the power factor and overall energy consumption reduction rate of the catering area, and generates energy consumption analysis reports to help the complex management identify high-energy-consuming areas. Management can issue parameter adjustment commands to the monitoring equipment in the corresponding sub-distribution rooms via remote control units, such as optimizing the power distribution parameters of the air conditioning system to reduce standby energy consumption. If the data storage unit detects that the daily energy consumption of a certain floor exceeds a preset percentage of the historical average, or receives fault information uploaded by equipment, the alarm notification unit will immediately push alarm information to maintenance and management personnel via background pop-ups and emails. Maintenance personnel can then go to the corresponding floor's power distribution room to troubleshoot the fault, ensuring the stable operation of the power distribution system.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An energy-saving power distribution monitoring device, characterized in that, The device includes: an electromagnetic environment sensing module, an adaptive interference immunity module, a three-level mesh grounding module, and a central control module; The electromagnetic environment sensing module is equipped with a narrowband interference sensor and a pulse interference sensor, which are used to collect interference information in the power distribution scenario and convert it into digital signals for transmission to the central control module. The adaptive interference suppression module includes an adjustable active filter and an adaptive step-size LMS algorithm submodule. It can drive the adjustable active filter to suppress interference by calculating optimal filter parameters. The adaptive step-size LMS algorithm submodule communicates with the central control module via an AXI bus and drives the adjustable active filter via an I2C interface. The calculation formula for the adaptive step-size LMS algorithm submodule is as follows: in, This is the vector of filter coefficients at time k; This is the filter coefficient vector at time k-1; for The transpose of ; Let be the adaptive step size at time k; This is the initial step size, which serves as the reference value for step size adjustment; This is the step size adjustment factor; Let be the error signal at time k; Let be the desired output signal at time k; Let be the input interference signal vector at time k; Error signal The absolute value; The three-level mesh grounding module consists of a main grounding electrode, an equipment grounding grid, and a signal grounding grid, which are connected by an equalizing strip to eliminate ground potential difference. The central control module is electrically connected to each of the aforementioned modules and is used to receive module data, collect filtered power distribution parameters, and generate energy-saving adjustment commands.

2. The energy-saving power distribution monitoring equipment according to claim 1, characterized in that, The electromagnetic environment sensing module is connected to the central control module via an SPI interface and uploads interference data every 10ms. The narrowband interference sensor has a detection frequency range of 1kHz-100MHz and a detection accuracy of ±0.5dBμV. The pulse interference sensor has a response time of ≤1μs and an adjustable detection threshold range of 10V-500V. Two narrowband interference sensors are deployed at the power input port and signal output port of the device, respectively, and the pulse interference sensor is deployed on the top of the device housing.

3. The energy-saving power distribution monitoring equipment according to claim 1, characterized in that, The adjustable active filter is connected in series with the power distribution parameter acquisition circuit, with a filtering bandwidth of 10Hz-200MHz and an adjustable attenuation coefficient of 10dB-60dB; the adjustable active filter is connected to the analog signal acquisition channel of the central control module through a terminal block.

4. The energy-saving power distribution monitoring equipment according to claim 1, characterized in that, In the three-level mesh grounding module, the main grounding electrode is connected to the equipment grounding grid through a 30mm×3mm copper busbar, and the equipment grounding grid and the signal grounding grid are connected through a Φ8mm copper equalizing strip; the main grounding electrode is made of copper-clad steel and buried at a depth of ≥2.5m; the equipment grounding grid is set around the equipment shell, and the signal grounding grid is arranged independently with a distance of ≥1m between the two; the overall grounding system has a grounding resistance of ≤1Ω and a potential difference of ≤50mV between each grounding node.

5. The energy-saving power distribution monitoring equipment according to claim 1, characterized in that, The central control module and the three-level mesh grounding module are electrically connected through grounding terminals. The central control module adopts an ARM architecture chip and integrates multiple ADCs to collect voltage and current parameters. It is equipped with an RS485 interface and a 4G module. The RS485 interface connects to the control equipment in the power distribution room, and the 4G module enables remote communication with the back-end system. It has fault self-diagnosis and backup anti-interference functions, and can detect the module status and cut off non-core data transmission interfaces when interference exceeds the standard.

6. An energy-saving power distribution monitoring system, the system being applicable to the energy-saving power distribution monitoring equipment described in any one of claims 1-6, characterized in that, The system includes: energy-saving power distribution monitoring equipment, and a background monitoring system that communicates with the energy-saving power distribution monitoring equipment; The energy-saving power distribution monitoring equipment communicates bidirectionally with the background monitoring system to upload interference data, filtering parameters, power distribution parameters and equipment status data, and to receive operation parameter configuration instructions and anti-interference strategy instructions issued by the background monitoring system. The background monitoring system includes a data storage unit, a visual analysis unit, a remote control unit, and an alarm notification unit. The data storage unit is used to receive various types of data uploaded by energy-saving power distribution monitoring equipment, classify and store the data and create indexes, and support historical data queries; The visual analysis unit is used to retrieve data from the data storage unit, display data change trends in the form of charts, and analyze the energy-saving effect of the power distribution system based on the weighted average energy consumption analysis algorithm. The remote control unit is used to generate operating parameter adjustment instructions for the energy-saving power distribution monitoring equipment based on the analysis results of the visual analysis unit, and then send them to the energy-saving power distribution monitoring equipment through the communication link. The alarm notification unit is used to monitor the data in the data storage unit in real time. When the data exceeds the preset threshold, an alarm is triggered, and the alarm information is pushed to the designated receiving end through a preset method.

7. The energy-saving power distribution monitoring equipment according to claim 1, characterized in that, The visual analysis unit calculates the power factor and energy consumption reduction rate using the following formula, based on a weighted average energy consumption analysis algorithm: The formula for calculating the power factor is: in, The power factor is used to characterize the proportion of active power to total power in a power distribution system. The active power collected by energy-saving power distribution monitoring equipment is the actual electrical energy consumed in the circuit. The reactive power collected by energy-saving power distribution monitoring equipment is the power used for the conversion of electric and magnetic fields in the circuit. The formula for calculating the energy consumption reduction rate is: Energy consumption reduction rate = (Energy consumption before renovation - Energy consumption after renovation) / Energy consumption before renovation × 100% Among them, the energy consumption reduction rate is an indicator for measuring the energy-saving effect; the energy consumption before the renovation is the average monthly energy consumption of the power distribution room before the deployment of the energy-saving power distribution monitoring equipment; and the energy consumption after the renovation is the average monthly energy consumption of the power distribution room after the deployment of the energy-saving power distribution monitoring equipment.

8. The energy-saving power distribution monitoring equipment according to claim 1, characterized in that, The data storage unit is connected to the visual analysis unit and the remote control unit via an internal bus, supporting simultaneous access to ≤1000 energy-saving power distribution monitoring devices; the data storage period is ≥1 year, and the stored data types include interference data, power distribution parameters, and equipment status data.

9. The energy-saving power distribution monitoring equipment according to claim 1, characterized in that, The alarm notification unit and the data storage unit are connected through a data interface. The alarm triggering conditions are: interference intensity ≥15dBμV, receiving fault information uploaded by energy-saving power distribution monitoring equipment, and daily energy consumption exceeding the historical average by 20%. The alarm notification methods include background pop-up, SMS, and email, and three of the receiving terminals can be configured. The alarm delay is ≤10s.

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