Line voltage regulating device

Abstract

The embodiment of the present application provides a kind of line voltage regulating equipment.The equipment includes: control device, and multiple voltage regulating devices and multiple monitoring devices arranged in different line sections of distribution line;Specifically, each monitoring device is used to collect the real-time line data of the line section, and is sent to control device;Control device includes data analysis module, adjustment instruction generation module and first communication module;Each voltage regulating device is used to adjust the line parameter of the line section according to the received adjustment instruction, to realize the voltage optimization of line section.Through this line voltage regulating equipment, the voltage stability of each section of line can be realized, while local adjustment and network optimization are considered, and the flexibility and reliability of distribution network are improved.

Description

Technical Field

[0001] This application relates to the field of power equipment, and more particularly to a line voltage regulating device. Background Technology

[0002] Voltage is one of the key indicators of electrical energy quality, and its stability and reliability directly affect the operating efficiency of the power system and the user's electricity experience. In low-voltage distribution networks, due to factors such as long transmission distances, uneven load distribution, and dynamic load fluctuations, end users often face problems such as low voltage, frequent voltage fluctuations, or voltage imbalances. Furthermore, poor voltage quality increases line losses and raises the operating costs for power supply companies. Therefore, voltage regulation of low-voltage distribution networks to improve voltage quality is crucial.

[0003] Existing line voltage regulation equipment typically relies on transformers or centralized equipment, including on-load tap-changing transformers and static var compensators. These devices are usually installed in substations or on main distribution lines to maintain stable power supply voltage by changing voltage levels or regulating reactive power.

[0004] However, existing line voltage regulation equipment is difficult to cover the entire power distribution network, resulting in poor line voltage regulation performance. Summary of the Invention

[0005] This application provides a line voltage regulating device to solve the problem that existing line voltage regulating devices are difficult to cover the entire power distribution network and have poor line voltage regulating effect.

[0006] In a first aspect, embodiments of this application provide a line voltage regulating device, comprising:

[0007] The control device, and multiple voltage regulating devices and multiple monitoring devices installed in different sections of the power distribution line, wherein the multiple voltage regulating devices and multiple monitoring devices are connected to the control device through communication;

[0008] Each of the monitoring devices is used to collect real-time line data of the line segment it is located in and send it to the control device.

[0009] The control device includes a data analysis module, a regulation command generation module, and a first communication module. The data analysis module receives real-time line data from each monitoring device via the first communication module and determines the voltage state corresponding to each line segment based on the real-time line data. The regulation command generation module determines a regulation strategy corresponding to each line segment based on the voltage state and generates a regulation command based on the regulation strategy. The first communication module sends the regulation command to the corresponding voltage regulating device.

[0010] Each of the voltage regulating devices is used to adjust the line parameters of the line segment it is located in according to the received adjustment command, so as to realize the action of adjusting the voltage according to the line parameters.

[0011] In one possible implementation, the data analysis module is used to: input the real-time line data of each line segment into the steady-state voltage deviation model to obtain the voltage state corresponding to each line segment.

[0012] In one possible implementation, the data analysis module is further configured to: calculate the real-time line data of each line segment based on a time series analysis algorithm to obtain the predicted voltage change trend corresponding to each line segment;

[0013] The adjustment instruction generation module is further configured to: determine the adjustment strategy corresponding to each line segment based on the voltage state corresponding to each line segment and the predicted voltage change trend.

[0014] In one possible implementation, the adjustment instruction generation module is used to: calculate the adjustment strategy corresponding to each line segment based on a distributed control algorithm and the voltage state of each line segment, for the voltage state corresponding to each line segment.

[0015] In one possible implementation, the monitoring device includes a voltage sensor, a current sensor, and a second communication module;

[0016] The current sensor is used to monitor the real-time current data of the line segment, and the voltage sensor is used to monitor the real-time voltage data of the line segment; the second communication module is used to send the real-time current data and the real-time voltage data to the control device.

[0017] The real-time voltage data and the real-time current data are the real-time line data.

[0018] In one possible implementation, the first communication module and the second communication module are further configured to: encrypt the data to be transmitted using an encryption algorithm, wherein the data to be transmitted is the real-time line data or the adjustment command.

[0019] In one possible implementation, the control device further includes a data preprocessing module for preprocessing the real-time line data transmitted by each of the monitoring devices, wherein the preprocessing includes at least data format conversion, noise filtering, and data cleaning.

[0020] In one possible implementation, the control device further includes a power module for providing electrical energy to the control device.

[0021] In one possible implementation, the power supply module is powered by solar energy and by energy storage batteries.

[0022] In one possible implementation, the regulation strategy includes at least: dynamic reactive power compensation, load redistribution, and voltage regulation range limitation.

[0023] The line voltage regulating device provided in this application embodiment firstly utilizes a control device, and then multiple voltage regulating devices and multiple monitoring devices installed in different line sections of the power distribution line and communicatively connected to the control device. Specifically, each monitoring device is used to collect real-time line data of its respective line section and send it to the control device to obtain information such as real-time voltage and load status of each line section. The control device includes a data analysis module, a regulation command generation module, and a first communication module. The data analysis module is used to receive the real-time line data sent by each monitoring device through the first communication module, and determine the voltage corresponding to each line section based on the real-time line data of each line section. The system comprises several modules: a voltage regulation command generation module to determine the regulation strategy for each line segment based on its voltage status, and a first communication module to send the regulation command to the corresponding voltage regulating device. This allows the control device to accurately pinpoint the location of low-voltage lines and flexibly adjust voltage according to load fluctuations and time-of-use characteristics (e.g., peak / off-peak periods), reducing voltage drops and power losses in distribution lines, minimizing unnecessary reactive power transmission, and improving energy utilization. Each voltage regulating device adjusts the line parameters of its assigned line segment based on the received regulation command, thereby optimizing the voltage of that segment. This line voltage regulation equipment enables voltage stability across all line segments, while simultaneously balancing local regulation and overall network optimization, enhancing the flexibility and reliability of the distribution network. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] Figure 1 This is a schematic diagram of the structure of the line voltage regulating device provided in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the control device provided in the embodiments of this application;

[0027] Figure 3 This is a schematic diagram of the monitoring device provided in the embodiments of this application.

[0028] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0030] Voltage is one of the key indicators of electrical energy quality, and its stability and reliability directly affect the operating efficiency of the power system and the user's electricity experience. In low-voltage distribution networks, due to factors such as long transmission distances, uneven load distribution, and dynamic load fluctuations, end users often face problems such as low voltage, frequent voltage fluctuations, or voltage imbalances. These problems can lead to a series of adverse consequences, such as reduced equipment operating efficiency, dim lighting, and shortened lifespan of household appliances. Furthermore, poor voltage quality increases line losses and raises the operating costs for power supply companies. Therefore, voltage regulation of low-voltage distribution networks to improve voltage quality is crucial.

[0031] Existing line voltage regulation equipment typically relies on transformers or centralized equipment, including on-load tap-changing transformers and static var compensators. These devices are usually installed in substations or on main distribution lines to maintain stable power supply voltage by changing voltage levels or regulating reactive power.

[0032] However, existing line voltage regulation equipment cannot cover the entire power distribution network, especially for end users far from substations who may still experience low voltage problems, resulting in poor line voltage regulation performance. Furthermore, centralized control carries the risk of single-point failure; if the centralized voltage regulation equipment malfunctions, it will affect the voltage quality of the entire area.

[0033] Based on this, this application proposes a line voltage regulation device. Since the centralized voltage regulation devices in the prior art cannot cover end users, it is difficult to meet the voltage demand of local areas. However, the distributed structure has strong flexibility and scalability, and can independently set up corresponding devices at key nodes. Therefore, the line segment voltage regulation device based on the distributed structure can monitor the voltage data of each segment of the line and perform real-time analysis of the voltage data. For local low voltage problems, it can also generate corresponding adjustment strategies for targeted compensation, avoiding the "one-size-fits-all" problem of centralized voltage regulation, and significantly improving voltage stability and power supply quality.

[0034] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0035] Figure 1 This is a schematic diagram of the structure of the line voltage regulating device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the control device provided in the embodiments of this application; Figure 3 A schematic diagram of the monitoring device provided in an embodiment of this application. (See attached diagram.) Figures 1 to 3 The line voltage regulating equipment includes: a control device 10, a voltage regulating device 20, and a monitoring device 30; the control device 10 includes a data analysis module 101, a regulation command generation module 102, and a first communication module 103.

[0036] The data analysis module 101 is used to receive real-time line data sent by each monitoring device 30 through the first communication module 103, and then input it into the steady-state voltage deviation model to determine the voltage state corresponding to each line segment. On the other hand, the data analysis module 101 can also calculate the real-time line data of each line segment based on the time series analysis algorithm to obtain the predicted voltage change trend corresponding to each line segment.

[0037] Real-time line data includes real-time voltage data and real-time current data; steady-state voltage deviation refers to the degree to which the system bus voltage deviates from its rated value under stable operating conditions; and the specific formula for steady-state voltage deviation can be expressed as:

[0038]

[0039] Among them, V actual This is the actual operating voltage; V rated This is the rated voltage.

[0040] For example, suppose a segmented line has an actual voltage load of 1.05 per unit (pu) and a rated voltage of 1.00 pu. Then the absolute steady-state voltage deviation is 0.05 pu, which means that the voltage of the line is 5% higher than the rated voltage.

[0041] On the other hand, the data analysis module 101 can also analyze the trend of line voltage changes in the future based on line voltage and current data (such as 1 hour and 24 hours) over a period of time using time series analysis algorithms (such as Autoregressive Integrated Moving Average (ARIMA) and Long Short-Term Memory (LSTM)).

[0042] The adjustment command generation module 102 is used to determine the adjustment strategy corresponding to each line segment based on the voltage state of each line segment, using a distributed control algorithm and the voltage state of each line segment, and to generate adjustment commands based on the adjustment strategies; and the adjustment strategies include at least: dynamic reactive power compensation, load redistribution, and voltage regulation range limitation. On the other hand, the adjustment command generation module 102 can also be used to determine the adjustment strategy corresponding to each line segment based on the voltage state of each line segment and the predicted voltage change trend; the first communication module 103 is used to send the adjustment commands to the corresponding voltage regulating device 20.

[0043] It should be noted that dynamic reactive power compensation in the regulation strategy involves adjusting reactive power (such as using a Static Var Compensator (SVC), Static Synchronous Compensator (STATCOM), or capacitors to raise or lower the voltage); that is, by automatically adjusting the switching capacity of parallel capacitors or series reactors, reactive power can be compensated in real time, thereby maintaining the segmented voltage within a reasonable range. For example, in a 10 kV distribution network, if the voltage of a certain segment is found to be consistently low, by detecting the voltage status, a group of 300 kvar (kVar) parallel capacitors can be automatically switched to raise the voltage of that segment to the standard value (e.g., from 9.4 kV to 9.8 kV).

[0044] Load redistribution balances voltage by adjusting the distribution of load across different lines. When some sections experience voltage drops due to overload while others have lighter loads, the load can be more evenly distributed across different sections by adjusting load connection points or switching load switches, thus balancing voltage levels. For example, in an industrial park, section A has a load of 500kW, while section B only has 200kW, causing the voltage in section A to drop to 9.2kV while section B reaches 10.1kV. By using a redistribution strategy, some cooling equipment can be transferred to section B, restoring the voltage in section A to 9.6kV, thereby achieving overall voltage balance.

[0045] Voltage regulation range limitation prevents voltage from exceeding upper or lower limits by adjusting the taps of compensation equipment or transformers. In other words, a safety boundary or threshold must be set during voltage regulation to prevent voltage fluctuations in other segments caused by voltage regulation in one segment, which is particularly critical in multi-segment series power supply systems. For example, in a town distribution network powered by three substations, before regulating the voltage of the transformer in segment A, the system simulates and calculates the impact on the voltages of segments B and C. If the set limit is exceeded, the system limits the voltage regulation amplitude to ±0.5%, avoiding voltage fluctuations in other areas.

[0046] Through these strategies, the adjustment instruction generation module 102 can maintain all segment voltages within the standard range (e.g., within ±5%), optimize reactive power and load balancing to reduce line losses, avoid voltage surges and frequent switching operations, improve the stability and lifespan of power equipment, thereby keeping the distribution network voltage within a reasonable range and improving power supply quality and stability.

[0047] When transmitting data, the voltage status and regulation strategies corresponding to each line segment can be based on lightweight communication protocols, such as Message Queuing Telemetry Transport (MQTT) or Device Language Message Specification / Companion Specification for Energy Metering (DLMS / COSEM), to achieve low-latency, low-bandwidth real-time line data exchange.

[0048] Continuing with the example, consider a low-voltage distribution line, 10km long, divided into four sections (A, B, C, and D). Each section is equipped with a voltage regulating device. The different loads in each section lead to unstable voltage at the end: Section A (near the substation): higher voltage (U_A = 1.05 pu); Section B (middle area): moderate load (U_B = 1.00 pu); Section C (farthest point): lower voltage (U_C = 0.93 pu); Section D (farthest point): severely reduced voltage (U_D = 0.88 pu). By utilizing a steady-state voltage deviation model, the objective function to maintain the voltage of the entire line as close as possible to the nominal value (1.00 pu) can be expressed as:

[0049]

[0050] Among them, U i These are the actual voltage values ​​for each segment.

[0051] Each segment independently calculates its own voltage deviation using a distributed control algorithm and calculates the local Lagrange multiplier used to guide the voltage regulation strategy. Then, each segment exchanges the Lagrange multiplier information and adjusts its own voltage regulation strategy. After multiple iterations, the voltage regulation of each device converges to the optimal state. Specifically, the final adjustment result can be: segment A is reduced by 3%, segment B remains basically unchanged, segment C is increased by 4%, and segment D is increased by 7%, thereby achieving voltage optimization for the entire line.

[0052] It should be understood that distributed control algorithms can avoid the limitations of single-point adjustment, meaning that when a segment fails, the other segments can still operate independently and have fault tolerance.

[0053] It should also be noted that the regulation command generation module 102 not only possesses basic regulation strategy output capabilities but also integrates edge computing and self-learning algorithms to continuously improve the intelligence level and response efficiency of regulation. Edge computing reduces reliance on the central control system, enabling millisecond-level rapid response to meet the high real-time and high reliability requirements of regulation, making it suitable for power dispatching or load regulation scenarios with extremely high response time requirements. Edge computing also alleviates the data processing pressure on the central system, improving the overall system's stability and scalability. Meanwhile, the self-learning algorithm in the regulation command generation module constructs a continuously optimized regulation model based on massive amounts of historical operating data and continuously collected real-time line data. This algorithm employs machine learning techniques, especially advanced algorithms such as Deep Reinforcement Learning (DRL), possessing the ability to continuously trial and error and learn under dynamically changing environments. Through interaction with the environment, the algorithm can identify load fluctuation patterns, predict future trends, and adjust strategy parameters accordingly to achieve optimal or near-optimal regulation control effects.

[0054] By combining edge computing and self-learning algorithms, the adjustment instruction generation module 102 has a high degree of intelligent adaptability and self-evolution capability. It can not only significantly improve the adjustment accuracy, but also automatically adapt to different load fluctuation patterns, network topology changes and abnormal events, thereby greatly reducing the dependence on manual intervention and improving the autonomous operation capability and control efficiency of the entire system.

[0055] The voltage regulating device 20 is used to adjust the line parameters of the line segment according to the received regulation command, so as to achieve voltage optimization of the line segment.

[0056] The monitoring device 30 also includes a voltage sensor 301, a current sensor 302, and a second communication module 303. The monitoring device 30 is used to collect real-time line data of the line segment it is located in and send it to the control device 10. Specifically, the current sensor 302 is used to monitor the real-time current data of the line segment, and the voltage sensor 301 is used to monitor the real-time voltage data of the line segment. The second communication module 303 is used to send the real-time current data and real-time voltage data to the control device 10.

[0057] Understandably, after the voltage sensor 301 in the monitoring device 30 collects real-time voltage data of its line segment and the current sensor 302 collects real-time current data of its line segment, the second communication module 303 packages and sends this real-time line data to the control device 10 for data processing and analysis. Therefore, by combining the analysis function of the control device, the voltage regulation strategy can be adjusted in time before abnormal situations such as low voltage and overload occur, thereby improving the stability of the power grid.

[0058] In one possible implementation, the first communication module 103 and the second communication module 303 can also encrypt the data to be transmitted using an encryption algorithm.

[0059] The data to be transmitted is real-time line data or adjustment instructions.

[0060] It should be understood that, in order to ensure the real-time performance and security of data communication between devices, the data to be transmitted can be encrypted using encryption algorithms, such as symmetric encryption algorithms, asymmetric encryption algorithms, and hash algorithms. For example, before the second communication module 303 sends real-time current data and real-time voltage data to the first communication module 103 in the control device 10, it can first generate an encryption key and an initialization vector using a symmetric encryption algorithm and send them to the first communication module 103. Then, the first communication module 103 uses the same encryption algorithm, key, and initialization vector to decrypt and obtain the real-time current data and real-time voltage data.

[0061] It should also be noted that, since the real-time line data received by the first communication module 103 from the monitoring device 30 is obtained through the voltage sensor 301 and the current sensor 302, the real-time line data needs to be standardized. Therefore, the control device 10 may also include a data preprocessing module for preprocessing the real-time line data transmitted by each monitoring device.

[0062] Preprocessing includes at least data format conversion, noise filtering, and data cleaning.

[0063] Optionally, since different manufacturers or models of equipment in smart grids or industrial automation systems may output data in different formats, the data preprocessing module needs to be standardized to ensure system integration compatibility and scalability. When the data preprocessing module performs format conversion on real-time line data, standardized data formats can be used, such as serial communication protocols (Modbus protocol), multi-function energy meter communication protocols, and International Electrotechnical Commission (IEC) 61850, to ensure data compatibility across different devices. For noise filtering, adaptive filtering algorithms (such as Kalman filtering and wavelet transform) can be used to automatically adjust parameters based on the characteristics of the input signal, filtering out interference signals (such as high-frequency noise) in the collected data in real time to ensure stable voltage or current waveforms. Subsequently, during data cleaning, statistical methods such as Standard Score and Interquartile Range (IQR) can be used to detect abrupt outliers and, combined with time series prediction models, supplement missing or erroneous data to maintain data continuity.

[0064] Understandably, the data acquisition and preprocessing module removes high-frequency noise in real time, improving the stability and accuracy of signals such as voltage and current. Simultaneously, by eliminating outlier data points and supplementing predicted values ​​with historical trends, data integrity and continuity are ensured. This module enhances the reliability of monitoring data, providing precise data support for subsequent voltage regulation strategies, thereby optimizing voltage quality, reducing line losses, and improving power supply stability.

[0065] In one feasible approach, the control device also includes a power module for supplying electrical energy to the control device, specifically through solar power or energy storage battery power.

[0066] Understandably, powering the control device via a power module ensures its normal operation. Different power supply methods allow the voltage regulator to be used in various harsh environments. For example, a voltage regulator powered by solar energy is suitable for remote areas and outdoor power lines where grid connection is difficult. A voltage regulator powered by energy storage batteries can automatically switch to battery power during sudden grid outages or line maintenance, ensuring uninterrupted operation. Furthermore, in situations where grid connection is difficult or unstable, a photovoltaic system combined with energy storage can achieve self-sufficiency, eliminating the need for additional wiring, saving costs, and reducing maintenance. This power supply method reduces the operating costs of the voltage regulator, extends its lifespan, and provides long-term, stable energy security for distributed voltage regulation.

[0067] The line voltage regulating device provided in this application embodiment firstly utilizes a control device, and then multiple voltage regulating devices and multiple monitoring devices installed in different line sections of the power distribution line and communicatively connected to the control device. Specifically, each monitoring device is used to collect real-time line data of its respective line section and send it to the control device to obtain information such as real-time voltage and load status of each line section. The control device includes a data analysis module, a regulation command generation module, and a first communication module. The data analysis module is used to receive the real-time line data sent by each monitoring device through the first communication module, and determine the voltage corresponding to each line section based on the real-time line data of each line section. The system comprises several modules: a voltage regulation command generation module to determine the regulation strategy for each line segment based on its voltage status, and a first communication module to send the regulation command to the corresponding voltage regulating device. This allows the control device to accurately pinpoint the location of low-voltage lines and flexibly adjust voltage according to load fluctuations and time-of-use characteristics (e.g., peak / off-peak periods), reducing voltage drops and power losses in distribution lines, minimizing unnecessary reactive power transmission, and improving energy utilization. Each voltage regulating device adjusts the line parameters of its assigned line segment based on the received regulation command, thereby optimizing the voltage of that segment. This line voltage regulation equipment enables voltage stability across all line segments, while simultaneously balancing local regulation and overall network optimization, enhancing the flexibility and reliability of the distribution network.

[0068] It should be noted that the devices in the embodiments provided in this application are all common devices on the market. They can be selected according to the needs when used. The circuit connection relationship of each device is a simple series and parallel connection circuit, which can be easily implemented by those skilled in the art. It belongs to the prior art and will not be described in detail here.

[0069] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0070] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0073] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A line voltage regulating device, characterized in that, The device includes: The control device, and multiple voltage regulating devices and multiple monitoring devices installed in different sections of the power distribution line, wherein the multiple voltage regulating devices and multiple monitoring devices are connected to the control device through communication; Each of the monitoring devices is used to collect real-time line data of the line segment it is located in and send it to the control device. The control device includes a data analysis module, a regulation command generation module, and a first communication module. The data analysis module receives real-time line data from each monitoring device via the first communication module and determines the voltage state corresponding to each line segment based on the real-time line data. The regulation command generation module determines a regulation strategy corresponding to each line segment based on the voltage state and generates a regulation command based on the regulation strategy. The first communication module sends the regulation command to the corresponding voltage regulating device. Each of the voltage regulating devices is used to adjust the line parameters of the line segment it is located in according to the received adjustment command, so as to realize the action of adjusting the voltage according to the line parameters.

2. The device according to claim 1, characterized in that, The data analysis module is used to input the real-time line data of each line segment into the steady-state voltage deviation model to obtain the voltage state corresponding to each line segment.

3. The device according to claim 2, characterized in that, The data analysis module is also used to: calculate the real-time line data of each line segment based on the time series analysis algorithm, and obtain the predicted voltage change trend corresponding to each line segment; The adjustment instruction generation module is further configured to: determine the adjustment strategy corresponding to each line segment based on the voltage state corresponding to each line segment and the predicted voltage change trend.

4. The device according to claim 1, characterized in that, The adjustment instruction generation module is used to: calculate the adjustment strategy corresponding to each line segment based on the distributed control algorithm and the voltage state of each line segment, for the voltage state corresponding to each line segment.

5. The device according to claim 1, characterized in that, The monitoring device includes a voltage sensor, a current sensor, and a second communication module; The current sensor is used to monitor the real-time current data of the line segment, and the voltage sensor is used to monitor the real-time voltage data of the line segment; the second communication module is used to send the real-time current data and the real-time voltage data to the control device. The real-time voltage data and the real-time current data are the real-time line data.

6. The device according to claim 5, characterized in that, The first communication module and the second communication module are further configured to: encrypt the data to be transmitted using an encryption algorithm, wherein the data to be transmitted is the real-time line data or the adjustment command.

7. The device according to claim 1, characterized in that, The control device further includes a data preprocessing module, used to preprocess the real-time line data transmitted by each of the monitoring devices, wherein the preprocessing includes at least data format conversion, noise filtering, and data cleaning.

8. The device according to claim 1, characterized in that, The control device also includes a power module for providing electrical energy to the control device.

9. The device according to claim 8, characterized in that, The power supply module is powered by either solar energy or energy storage batteries.

10. The device according to claim 1, characterized in that, The regulation strategy includes at least: dynamic reactive power compensation, load redistribution, and voltage regulation range limitation.

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