High-voltage electromagnetic balance power-saving device

Abstract

The invention discloses a high-voltage electromagnetic balance power-saving device, and relates to the technical field of high-voltage energy saving. Compared with a previous high-voltage line switch cabinet, the high-voltage line switch cabinet solves the problems that an existing high-voltage line switch cabinet or a power distribution cabinet does not have a power-saving device, is single in function, does not have electromagnetic balance and on-load voltage stabilization functions, and cannot solve voltage fluctuation and electric energy waste in a power grid line; a high-voltage power-saving device is added in an inlet wire power distribution cabinet and a switch cabinet of a high-voltage power supply enterprise, and functions of intelligent protection, voltage stabilization, power grid purification, remote monitoring, power-saving operation and the like are added in a power distribution system. The power supply radius of a substation can be prolonged to be suitable for long-distance power transmission of a rural power grid, the voltage qualification rate of a whole line is guaranteed, line loss and distribution transformer loss are effectively reduced, the voltage regulator continuously operates without power failure when being put in or quit, voltage can be automatically, manually or remotely adjusted according to the line load, and the voltage regulation efficiency is improved. And the whole power grid always works in a safe, economical and efficient operation state.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage energy saving, and in particular to a high-voltage electromagnetic balance power saving device. Background Art

[0002] With the development of the electric power industry and the improvement of the agricultural power grid transformation project, the phenomenon of low voltage at the end of the power grid has been generally improved. However, the problem that comes with it is that the voltage of the power grid is generally high. According to the data recorded by 10 Class D voltage monitoring points in a certain area of ​​Zhejiang Province in two months, the voltage is over-high for 50.5% of the time, over-low for 1.4% of the time, and qualified for 48.1% of the time. Especially when the power load is low, it is also a common phenomenon that the voltage rises from 380V to 420V, resulting in increased losses in the power grid and low power supply quality qualification rate; the power consumption of the enterprise power transformer and even all equipment increases and often burns out the motor, reduces the service life of the equipment, and increases maintenance and repair costs. At present, the switch cabinets or distribution cabinets used for high-voltage lines on the market do not have power-saving devices, their functions are single, and they do not have electromagnetic balance and load voltage stabilization functions, and cannot solve the voltage fluctuations and waste of electric energy in the power grid lines.

[0003] In order to solve the above problems, the present invention proposes a high-voltage electromagnetic balancing power-saving device. Summary of the invention

[0004] The purpose of the present invention is to provide a high voltage electromagnetic balancing power saving device to solve the problems raised in the background technology:

[0005] Currently, the switch cabinets or distribution cabinets used for high-voltage lines on the market do not have power-saving devices, have single functions, and do not have electromagnetic balance and load voltage stabilization functions, and cannot solve the problems of voltage fluctuations and energy waste in power grid lines.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A high-voltage electromagnetic balance power-saving device, comprising: a three-dimensional wound core adjustable reactor, a safety protection automatic control module, a detection control module, a power quality management module and an operation optimization management module;

[0008] The three-dimensional wound iron core adjustable reactor comprises three identical single-frame rounded rectangular three-dimensional wound iron cores and three groups of reactance coils, wherein the reactance coils comprise three groups of main winding reactance coils connected in series in the main circuit and three groups of autocoupling coil windings for parallel induction, and the three-dimensional wound iron core adjustable reactor also adjusts the output voltage through the tap of the autocoupling coil winding;

[0009] The safety protection automatic control module adopts microcomputer control to monitor the operation of the power supply line in real time, and also starts the corresponding protection program through the intelligent safety power fire alarm protector, and issues instructions to control the combined bypass knife switch to switch to the bypass power supply line, and at the same time, sound and light alarm;

[0010] The detection control module is used to collect full power data, non-power signals and work log information, and summarize and integrate them;

[0011] The power quality management module is used to monitor the power supply quality of the power grid;

[0012] The operation optimization management module is used to provide continuous operation trend records, operation status records, startup voltage and current records, accident records, and insulation monitoring records for large electrical equipment, and optimize the system operation mode by summarizing the recorded information, and optimize the design capacity and operation arrangement of transformers, cables, switches, and motors;

[0013] The first ends of the three groups of main circuit reactors are respectively connected to the three-phase input ends of the high-voltage line, and the second ends of the three groups of main circuit reactors are respectively connected to the three-phase output ends of the high-voltage line; the first ends of the three groups of autocoil windings are respectively connected to the second ends of the three groups of main circuit reactors; the three groups of autocoil windings all have a neutral tap, and the neutral tap is connected to different gear positions of the voltage regulator to adjust the output voltage.

[0014] Preferably, the three-dimensional wound core is made of amorphous alloy material, and its cross section is a polygonal structure.

[0015] Preferably, the detection control module is controlled by an intelligent control instrument, which includes a voltage signal feedback circuit, a current signal feedback circuit, an A / D module, a CPU, a display part, a communication interface, a remote control input and a remote control output; the voltage signal feedback circuit and the current signal feedback circuit are respectively connected to the A / D module, and the CPU is respectively connected to the A / D module, the display part, the communication interface, the remote control input and the remote control output.

[0016] Preferably, the CPU performs enhancement processing on the signal based on a convolutional neural network, and the input layer of the convolutional neural network extracts communication network signal features, specifically as follows:

[0017] The detected communication network signal X(k) is sampled by sampling to obtain the signal instantaneous amplitude sequence R(k):

[0018]

[0019] Where A(k) is the signal amplitude sequence obtained by sampling at the sampling frequency; k represents the length of the instantaneous amplitude sequence;

[0020] Get the maximum instantaneous amplitude F of the signal max The calculation formula of the two characteristic parameters, namely, the standard deviation σ of the absolute value of the instantaneous amplitude of the signal, is as follows:

[0021]

[0022] in, represents the discrete welfare home transformation process; K represents the number of signal sampling points;

[0023] The convolution operation of the convolutional layer is as follows:

[0024]

[0025] Among them, y(i,j,l) is the output; x(i,j,l) is the input; d is the step size; n, m and s are the length ranges of different dimensions respectively; (i,j,l) corresponds to the multidimensional coordinate index; (h,w,r) is used to traverse the different dimensions of the filter; is the weight parameter of the lth filter; b l is the bias of the lth filter; ε is the dilation factor; f(·) is the activation function;

[0026] Use convolution kernel sizes of 1×1, 1×3, ... 1×2 N The multi-scale dilated convolution operator of +1 connects the feature signals of different scales, and uses the zero-filling convolution operator to keep the output features and input features of the same size;

[0027] The convolutional neural network also incorporates an attention mechanism, as follows:

[0028] y out (g) = T Y [y(g)×im X (g)×im Y (g)×im Z (g)+y(g)]

[0029] Among them, y out (g) is the output of the attention layer; y(g) is the output of the convolutional layer; T Y Indicates the pooling operation along the Y direction; im X (g), im Y (g) and im Z (g) Represents the importance of different directions.

[0030] Preferably, the safety protection automatic control module also takes the power supply line operation status data as input, and performs fault prediction and voltage regulation based on the convolutional neural network.

[0031] Preferably, the safety protection automatic control module is also provided with a lightning protection function.

[0032] Preferably, the power supply quality data monitored by the power quality management module includes grid voltage phase loss, voltage imbalance, harmonic measurement and line crossing, harmonic distortion rate, voltage overshoot and undershoot, voltage fluctuation, and abnormal frequency fluctuation data.

[0033] Preferably, the operation optimization management module comprehensively collects continuous operation trend records, operation status records, startup voltage and current records, accident records, and insulation monitoring record data of large-scale electrical equipment, and optimizes the system operation mode based on the improved harmony optimization strategy. The improved harmony optimization strategy is as follows:

[0034] The energy saving P = {p 1 ,p 2 ,Λ,p Q} As the optimization target, Q is the total number of operation arrangement combinations of each device, and the relevant parameters are initialized;

[0035] p uv =p min +(p max -p min )×r 1

[0036] Among them, p uv Arrange vector for initializing the operation of u-th device and v-th device; p max and p min are the upper and lower limits of the solution; r 1 is a random number between (0,1);

[0037] Initialize the operation arrangement combination library GM, randomly generate q operation arrangement vectors in the search domain through the above formula, and add them to the operation arrangement combination library GM shown by the matrix:

[0038]

[0039] Among them, FL[·] is the energy saving measurement function;

[0040] Update the operation schedule vector p before the e-th iteration uv (e) Update as follows:

[0041]

[0042] Among them, r 2 、r 3 、r 4 and r 5 are all random numbers between (0,1); p new,uv(e) is the updated operation arrangement vector after the e-th iteration; α is the iteration factor; E is the maximum number of iterations; BW is the combined limit of the operation arrangement of the e-th iteration; p 1 Arrange the combinatorial library storage probability for the run; p 2 (e) Arrange the fine-tuning probability for the e-th iteration, p 2max and p 2min Arrange the maximum and minimum values ​​of the fine-tuning probability for the runs respectively;

[0043] The updated running schedule vector p new,uv (e) The worst harmony vector p in the combined memory GM of the initial run arrangement worst The harmony metric function value is compared, if p new,uv The metric function value of (e) is less than p worst The metric function value is p new,uv (e) Replace p worst ; Otherwise, the run schedule vector in GM remains unchanged;

[0044] Check whether the algorithm termination condition is met; if so, output the global optimal solution and the algorithm ends; otherwise, return to continue updating the operation schedule vector.

[0045] Compared with the prior art, the present invention provides a high-voltage electromagnetic balancing power-saving device, which has the following beneficial effects:

[0046] The present invention adds a high-voltage power-saving device to the incoming distribution cabinet and switch cabinet of the high-voltage power supply enterprise, and adds functions such as intelligent protection, voltage stabilization, power grid purification, remote monitoring, and power-saving operation to the distribution system; it can extend the power supply radius of the substation to be suitable for long-distance power transmission in the rural power grid, ensure the voltage qualification rate of the entire line, effectively reduce the line loss and distribution transformer loss, and continue to operate without power outage when the voltage regulator is put into or withdrawn, and can also automatically, manually or remotely adjust the voltage according to the line load size, so that the entire power grid always operates in a safe, economical and efficient operation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic block diagram of the device mentioned in Embodiment 1 of the present invention;

[0048] Figure 2 This is a schematic diagram of the adjustable reactor core mentioned in Embodiment 1 of the present invention;

[0049] Figure 3 This is a schematic diagram of the connection of the reactor coil mentioned in Example 1 of the present invention;

[0050] Figure 4 This is a schematic diagram of the detection control module mentioned in Example 1 of the present invention;

[0051] Figure 5 Schematic diagram of the convolution structure mentioned in Example 1 of the present invention;

[0052] Figure 6 Schematic diagram of the attention mechanism mentioned in Example 1 of the present invention.

[0053] Meaning of the symbols in the figure:

[0054] 1. Three-dimensional wound core adjustable reactor; 2. Safety protection automatic control module; 3. Detection control module; 4. Power quality management module; 5. Operation optimization management module. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0056] The present invention adds high-voltage power-saving devices to the incoming power distribution cabinets and switch cabinets of high-voltage power supply enterprises, and adds intelligent protection, voltage stabilization, power grid purification, remote monitoring, power-saving operation and other functions to the power distribution system; it can achieve the long-distance power transmission suitable for rural power grids by extending the power supply radius of the substation, ensuring the voltage qualification rate of the entire line, effectively reducing line losses and distribution transformer losses, and continuously operating without power outages when the voltage regulator is put into or withdrawn, and can also automatically, manually or remotely adjust the voltage according to the line load size, so that the entire power grid always works in a safe, economical and efficient operating state. Specifically including the following contents.

[0057] Embodiment 1:

[0058] See also Figure 1-6 The present invention discloses a high-voltage electromagnetic balanced power-saving device, comprising: a three-dimensional wound core adjustable reactor 1, a safety protection automatic control module 2, a detection control module 3, a power quality management module 4 and an operation optimization management module 5;

[0059] The three-dimensional wound core adjustable reactor 1 includes three identical single-frame rounded rectangular three-dimensional wound cores and three groups of reactor coils. The actual picture can be referred to Figure 2 The three-dimensional wound core is made of amorphous alloy material, with extremely low self-loss and a polygonal cross-section. The reactor coil includes three sets of main winding reactor coils connected in series in the main circuit, and three sets of autocoupling coil windings for parallel induction. The output voltage is also adjusted by the tap of the autocoupling coil winding. Figure 3, A, B, and C are three-phase voltages respectively, and the first ends of the three main circuit reactors are connected to them respectively. The second ends X, Y, and Z of the three main circuit reactors are connected to the first ends a, b, and c of the three autocoil windings respectively. K1, K2, and K3 are the second ends of the three autocoil windings, i.e., the neutral line taps. The xl, yl, z1, x2, y2, z2, x3, y3, and z3 below are all different voltage contacts of the voltage regulator. When the K1-xl / K2-yl / K3-z1 terminals are short-circuited, the line voltage at the output end is reduced by 3%; when the K1-x2 / K2-y2 / K3-z2 terminals are short-circuited, the line voltage at the output end is reduced by 5%; when the K1-x3 / K2-y3 / K3-z3 terminals are short-circuited, the line voltage at the output end is reduced by 7%. The three-dimensional wound core has changed the structure of the original silicon steel core. It does not need to adopt the Z-shaped winding method of the coil, so there are not many contacts in the manufacturing process. The use of only one neutral line tap further reduces the number of contacts. With fewer contacts, the number of fault points is correspondingly reduced, which can improve the working stability and efficiency of the device. In addition, compared with the laminated structure, the no-load current of the power-saving device of the same power is reduced by more than 70%, and the loss itself is greatly reduced, which can be ignored compared with the power-saving effect.

[0060] The safety protection automatic control module 2 adopts microcomputer control, which can monitor the operation of the power supply line in real time, accurately and online. Once the line has leakage, overload, short circuit, overvoltage, undervoltage and phase loss, the intelligent safety power fire alarm protector can immediately start the corresponding protection program, issue a command to switch to the bypass (without cutting off) power supply line, protect the safety and stability of the power system, and issue an audible and visual alarm. In addition, the safety protection automatic control module 2 is also equipped with a lightning protection function to protect the electrical equipment from being damaged by lightning.

[0061] Detection control module; collect and record all the electrical data of each circuit, such as U, I, P, COS∮, f, KWH, KVARH, etc., collect the switch quantity of the circuit breaker, abnormal alarm signals and non-electrical signals, collect protection action information, event sequence record information, protection device working status, etc. Provide real-time main wiring diagram, trend curve, report, event sequence record (SOE), etc.

[0062] Reference Figure 4 The detection control module 3 is controlled by an intelligent control instrument, which includes a voltage signal feedback circuit, a current signal feedback circuit, an A / D module, a CPU, a display part, a communication interface, a remote control input and a remote control output; the voltage signal feedback circuit and the current signal feedback circuit are respectively connected to the A / D module, and the CPU is respectively connected to the A / D module, the display part, the communication interface, the remote control input and the remote control output.

[0063] The CPU performs signal enhancement processing based on the convolutional neural network. The input layer of the convolutional neural network extracts the characteristics of the communication network signal, as follows:

[0064] The detected communication network signal X(k) is sampled by sampling to obtain the signal instantaneous amplitude sequence R(k):

[0065]

[0066] Where A(k) is the signal amplitude sequence obtained by sampling at the sampling frequency; k represents the length of the instantaneous amplitude sequence;

[0067] Get the maximum instantaneous amplitude F of the signal max The calculation formula of the two characteristic parameters, namely, the standard deviation σ of the absolute value of the instantaneous amplitude of the signal, is as follows:

[0068]

[0069] Among them, ∮(·) represents the discrete welfare home transformation process; K represents the number of signal sampling points;

[0070] The convolution operation of the convolution layer can be referred to Figure 5 , as follows:

[0071]

[0072] Among them, y(i,j,l) is the output; x(i,j,l) is the input; d is the step size; n, m and s are the length ranges of different dimensions respectively; (i,j,l) corresponds to the multidimensional coordinate index; (h,w,r) is used to traverse the different dimensions of the filter; is the weight parameter of the lth filter; b l is the bias of the lth filter; ε is the dilation factor; f(·) is the activation function;

[0073] Use convolution kernel sizes of 1×1, 1×3, ... 1×2 N The multi-scale dilated convolution operator of +1 connects the feature signals of different scales, and uses the zero-filling convolution operator to keep the output features and input features of the same size;

[0074] Convolutional neural networks also incorporate attention mechanisms, which can be found in Figure 6 , as follows:

[0075] y out (g) = T Y [y(g)×im X (g)×im Y (g)×im Z (g)+y(g)]

[0076] Among them, y out (g) is the output of the attention layer; y(g) is the output of the convolutional layer; T Y Indicates the pooling operation along the Y direction; im X (g), im Y (g) and im Z (g) Represents the importance of different directions.

[0077] The use of multi-scale convolutional layers enables the network to capture information at different scales and adapt to targets and features of different sizes. Through convolution kernels with different expansion factors, various ranges from local details to global structures can be covered, so as to better understand the different levels of features of the input data. By considering past and future information at the same time, it further expands the receptive field and can more comprehensively use contextual information for analysis and prediction. Multi-scale non-causal dilated convolution can effectively extract rich features without significantly increasing the amount of calculation. Compared with traditional convolution, it can obtain more powerful representation capabilities with fewer parameters and improve computational efficiency. When processing data with complex structures and changes, such as natural images, audio signals, and video sequences, the convolution layer of this embodiment shows stronger adaptability. It can capture details of different regions and global contextual information, and better handle diversity and uncertainty in data. The convolution layer of this embodiment can be easily used in combination with other deep learning architectures and technologies, and has high flexibility. It can be combined with attention mechanisms, residual connections, recurrent neural networks, etc. according to the needs of specific tasks to build a more powerful model.

[0078] The way of incorporating attention mechanisms into different dimensions can better focus on useful transmission signals, thereby better capturing important information in the transmission data and achieving the goal of signal enhancement.

[0079] Power quality management; monitor the power supply quality of the power grid, including grid voltage phase loss, voltage imbalance, harmonic measurement and line crossing, harmonic distortion rate, voltage overshoot and undershoot, voltage fluctuation, and abnormal frequency fluctuation. Real-time monitoring of the power supply quality of the power grid can timely detect problems such as voltage fluctuation, frequency deviation, and harmonic distortion. If these problems are not handled in time, they may cause equipment failure, system collapse, and even large-scale power outages. Real-time monitoring can issue an alarm at the early stage of the problem, allowing operation and maintenance personnel to take quick measures to repair it and ensure the stable operation of the power system. It can also quickly locate the fault point when a power grid fault occurs and provide detailed fault information. This enables operation and maintenance personnel to respond quickly, take effective fault isolation and repair measures, shorten the power outage time, and improve power supply reliability. It can also timely detect abnormal conditions such as overvoltage, overcurrent, and harmonics, and take corresponding protection measures, such as adjusting transformer taps, switching capacitor banks, etc., to protect power equipment from damage.

[0080] Operation optimization management: provide continuous operation trend records, operation status records, startup voltage and current records, accident records, and insulation monitoring records for large electrical equipment. Optimize system operation mode, optimize transformer, cable, switch, motor design capacity and operation arrangement.

[0081] The operation optimization management module 5 comprehensively collects the continuous operation trend records, operation status records, startup voltage and current records, accident records, and insulation monitoring record data of large electrical equipment, and optimizes the system operation mode based on the improved harmony optimization strategy. The improved harmony optimization strategy is as follows:

[0082] The energy saving P = {p 1 ,p 2 ,Λ,p Q} As the optimization target, Q is the total number of operation arrangement combinations of each device, and the relevant parameters are initialized;

[0083] p uv =p min +(p max -p min )×r 1

[0084] Among them, p uv Arrange vector for initializing the operation of u-th device and v-th device; p max and p min are the upper and lower limits of the solution; r 1 is a random number between (0,1);

[0085] Initialize the operation arrangement combination library GM, randomly generate q operation arrangement vectors in the search domain through the above formula, and add them to the operation arrangement combination library GM shown by the matrix:

[0086]

[0087] Among them, FL[·] is the energy saving measurement function;

[0088] Update the operation schedule vector p before the e-th iteration uv (e) Update as follows:

[0089]

[0090] Among them, r 2 、r 3 、r 4 and r 5 are all random numbers between (0,1); p new,uv(e) is the updated operation arrangement vector after the e-th iteration; α is the iteration factor; E is the maximum number of iterations; BW is the combined limit of the operation arrangement of the e-th iteration; p 1 Arrange the combinatorial library storage probability for the run; p 2 (e) Arrange the fine-tuning probability for the e-th iteration, p 2max and p 2min Arrange the maximum and minimum values ​​of the fine-tuning probability for the runs respectively;

[0091] The updated running schedule vector p new,uv (e) The worst harmony vector p in the combined memory GM of the initial run arrangement worst The harmony metric function value is compared, if p new,uv The metric function value of (e) is less than p worst The metric function value is p new,uv (e) Replace p worst ; Otherwise, the run schedule vector in GM remains unchanged;

[0092] Check whether the algorithm termination condition is met; if it is met, output the global optimal solution and the algorithm ends; otherwise, return to continue updating the operation schedule vector. By improving the harmony optimization strategy to optimize the system operation, the number of nodes can be greatly increased to improve the node efficiency of the device.

[0093] The power-saving device of this embodiment solves the problem of long-distance power transmission by connecting a voltage regulator in series with the line, which can extend the power transmission distance exponentially and provide the voltage quality of the power supply. The installation position and setting parameters of the voltage regulator can be determined according to the line parameters, and the voltage of the entire line can be simulated by the line automatic voltage regulator itself to measure and calculate, and after adjustment, it is ensured that the voltage of the entire line meets the national standard. By increasing the line operating voltage, the operating current can be reduced to reduce the line power loss when the same power is output. Controlling the line operating voltage near the rated value can reduce the distribution transformer loss. This device is also equipped with a specially designed combined bypass knife switch, which is ingeniously designed and flexible and easy to operate. The voltage regulator can be pushed out for operation without power outage during maintenance. Similarly, the voltage regulator does not need to be powered off when it is put into operation, which improves the reliability of power supply.

[0094] The unique patented technology can automatically calculate and adjust the remote voltage according to the line load size, ensuring that the line can accurately adjust the voltage in any operating state, such as three-phase three-wire, two-wire and one-ground.

[0095] Embodiment 2:

[0096] A high-voltage electromagnetic balance power-saving device constructed in Example 1 is applied to an actual factory, the output side voltage is adjusted to 10,000 volts, and the measured data of energy consumption in factories with different voltages are monitored. For details, please refer to Table 1:

[0097] Table 1 Adjustment of the measured data of energy consumption of factories with different voltages at the output side of 10,000 volts

[0098]

[0099] Then adjust the voltage to 6000V, monitor the actual energy consumption data under different working conditions, refer to Table 2 for details:

[0100] Table 2 Measured energy consumption data at different voltages of 6000V

[0101]

[0102]

[0103] In summary, the power-saving device according to Example 1 can achieve a power-saving effect of 5% to 20% depending on the power load of the enterprise; the power supply department can ensure a 100% voltage qualification rate, and the power consumption rate of the plant under different working conditions is not less than 7.95%, which has a high application value. In addition, by extending the radius of the power supply line and reducing line loss, the entire power grid can always operate in a safe, economical and efficient state.

[0104] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high voltage electromagnetic balance power saving device, characterized in that: include: A three-dimensional wound core adjustable reactor (1), a safety protection automatic control module (2), a detection control module (3), a power quality management module (4) and an operation optimization management module (5); The three-dimensional wound iron core adjustable reactor (1) comprises three identical single-frame rounded rectangular three-dimensional wound iron cores and three groups of reactor coils, wherein the reactor coils comprise three groups of main winding reactor coils connected in series in the main circuit and three groups of autocoupling coil windings for parallel induction, and the three-dimensional wound iron core adjustable reactor (1) can also adjust the output voltage by tapping the autocoupling coil windings; The safety protection automatic control module (2) is controlled by a microcomputer to monitor the operation of the power supply line in real time, and also starts the corresponding protection program through the intelligent safety power fire alarm protector, and sends out instructions to control the combined bypass knife switch to switch to the bypass power supply line, and at the same time, sound and light alarms are issued; The detection control module (3) is used to collect full electric quantity data, non-electric quantity signals and work log information, and summarize and integrate them; The power quality management module (4) is used to monitor the power supply quality of the power grid; The operation optimization management module (5) is used to provide continuous operation trend records, operation status records, startup voltage and current records, accident records, and insulation monitoring records for large electrical equipment, and optimize the system operation mode by summarizing the recorded information, and optimize the design capacity and operation arrangement of transformers, cables, switches, and motors; The first ends of the three groups of main circuit reactors are respectively connected to the three-phase input ends of the high-voltage line, and the second ends of the three groups of main circuit reactors are respectively connected to the three-phase output ends of the high-voltage line; the first ends of the three groups of autocoil windings are respectively connected to the second ends of the three groups of main circuit reactors; the three groups of autocoil windings all have a neutral tap, and the neutral tap is connected to different gear positions of the voltage regulator to adjust the output voltage.

2. A high voltage electromagnetic balance power saving device according to claim 1, characterized in that: The three-dimensional wound core is made of amorphous alloy material, and its cross section is a polygonal structure.

3. A high voltage electromagnetic balance power saving device according to claim 1, characterized in that: The detection control module (3) is controlled by an intelligent control instrument, which comprises a voltage signal feedback circuit, a current signal feedback circuit, an A / D module, a CPU, a display part, a communication interface, a remote control input and a remote control output; the voltage signal feedback circuit and the current signal feedback circuit are respectively connected to the A / D module, and the CPU is respectively connected to the A / D module, the display part, the communication interface, the remote control input and the remote control output.

4. A high voltage electromagnetic balance power saving device according to claim 3, characterized in that: The CPU performs enhancement processing on the signal based on a convolutional neural network, and the input layer of the convolutional neural network extracts communication network signal features, as follows: The detected communication network signal X(k) is sampled by sampling to obtain the signal instantaneous amplitude sequence R(k): Where A(k) is the signal amplitude sequence obtained by sampling at the sampling frequency; k represents the length of the instantaneous amplitude sequence; Get the maximum instantaneous amplitude F of the signal max The calculation formula of the two characteristic parameters, namely, the standard deviation σ of the absolute value of the instantaneous amplitude of the signal, is as follows: Among them, ∮(·) represents the discrete welfare home transformation process; K represents the number of signal sampling points; The convolution operation of the convolutional layer is as follows: Among them, y(i,j,l) is the output; x(i,j,l) is the input; d is the step size; n, m and s are the length ranges of different dimensions respectively; (i,j,l) corresponds to the multidimensional coordinate index; (h,w,r) is used to traverse the different dimensions of the filter; is the weight parameter of the lth filter; b l is the bias of the lth filter; ε is the dilation factor; f(·) is the activation function; Use convolution kernel sizes of 1×1, 1×3, ... 1×2 N The multi-scale dilated convolution operator of +1 connects the feature signals of different scales, and uses the zero-filling convolution operator to keep the output features and input features of the same size; The convolutional neural network also incorporates an attention mechanism, as follows: Among them, y out (g) is the output of the attention layer; y(g) is the output of the convolutional layer; T Y Indicates the pooling operation along the Y direction; im X (g), im Y (g) and im Z (g) Represents the importance of different directions.

5. A high voltage electromagnetic balance power saving device according to claim 4, characterized in that: The safety protection automatic control module (2) also takes the power supply line operation status data as input, and performs fault prediction and voltage regulation based on the convolutional neural network.

6. A high voltage electromagnetic balance power saving device according to claim 5, characterized in that: The safety protection automatic control module (2) is also provided with a lightning protection function.

7. A high voltage electromagnetic balance power saving device according to claim 1, characterized in that: The power supply quality data monitored by the power quality management module (4) include grid voltage phase loss, voltage imbalance, harmonic measurement and line crossing, harmonic distortion rate, voltage overshoot and undershoot, voltage fluctuation, and abnormal frequency fluctuation data.

8. A high voltage electromagnetic balance power saving device according to claim 1, characterized in that: The operation optimization management module (5) comprehensively collects continuous operation trend records, operation status records, startup voltage and current records, accident records, and insulation monitoring record data of large-scale electrical equipment, and optimizes the system operation mode based on the improved harmony optimization strategy. The improved harmony optimization strategy is specifically as follows: The energy saving P = {p1, p2, Λ, p Q } As the optimization target, Q is the total number of operation arrangement combinations of each device, and the relevant parameters are initialized; p uv =p min +(p max -p min )×r1 Among them, p uv Arrange vector for initializing the operation of u-th device and v-th device; p max and p min are the upper and lower limits of the solution; r1 is a random number between (0,1); Initialize the operation arrangement combination library GM, randomly generate q operation arrangement vectors in the search domain through the above formula, and add them to the operation arrangement combination library GM shown by the matrix: Among them, FL[·] is the energy saving measurement function; Update the operation schedule vector p before the e-th iteration uv (e) Update as follows: Among them, r2, r3, r4 and r5 are all random numbers between (0,1); p new,uv (e) is the updated operation arrangement vector after the e-th iteration; α is the iteration factor; E is the maximum number of iterations; BW is the combination limit of the operation arrangement of the e-th iteration; p1 is the storage probability of the operation arrangement combination library; p2(e) is the probability of fine-tuning the operation arrangement of the e-th iteration, p 2max and p 2min Arrange the maximum and minimum values ​​of the fine-tuning probability for the runs respectively; The updated running schedule vector p new,uv (e) The worst harmony vector p in the combined memory GM of the initial run arrangement worst The harmony metric function value is compared, if p new,uv The metric function value of (e) is less than p worst The metric function value is p new,uv (e) Replace p worst ; Otherwise, the run schedule vector in GM remains unchanged; Check whether the algorithm termination condition is met; if so, output the global optimal solution and the algorithm ends; otherwise, return to continue updating the operation schedule vector.

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