High-efficiency hybrid filter cabinet and dynamic harmonic suppression method thereof

Abstract

The invention discloses an efficient hybrid filter cabinet and a dynamic harmonic suppression method thereof.According to the filter cabinet, the power factor of a power grid is detected in real time through a three-phase reactive compensation capacitor, when the power factor is lower than a set value, the capacitor automatically compensates reactive power, the transmission efficiency of the power grid is improved, and line loss is reduced; the three-phase harmonic filter reactor is used in cooperation with the capacitor, load harmonic waves in a power grid are effectively eliminated, equipment is protected from being damaged by the harmonic waves, the service life is prolonged, the state of the power grid is dynamically monitored through the control module, the harmonic problems are accurately judged, the working states of the capacitor and the reactor are adjusted according to the monitoring result, and real-time harmonic suppression is achieved. The control module also endows the filtering cabinet with an intelligent management function, and through remote monitoring and data analysis, managers can know the operation state of a power grid in real time, find and process potential problems in time, reduce the operation and maintenance cost, and improve the management efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of filter cabinets, and in particular to a high-efficiency hybrid filter cabinet and a dynamic harmonic suppression method thereof. Background Art

[0002] In the power system, the power quality of the power grid is one of the important indicators to measure the operating status of the power system. However, with the widespread application of power electronic equipment and the diversification of load types, a large amount of reactive power and harmonic pollution has appeared in the power grid, which has had a serious impact on the stable operation and power quality of the power grid.

[0003] Traditional reactive power compensation and harmonic suppression methods mostly use a combination of fixed capacitors and reactors. Although this method can improve the power factor of the power grid and reduce harmonics to a certain extent, its regulation capability is limited and it cannot make real-time adjustments based on changes in the power grid status. When the load in the power grid changes, the traditional fixed compensation device may not respond in time, resulting in a decline in the power quality of the power grid and even causing power grid failure. Summary of the Invention

[0004] In view of this, the present invention proposes a high-efficiency hybrid filter cabinet and a dynamic harmonic suppression method thereof, which can effectively solve the defect of the existing technology that it cannot make real-time adjustments according to changes in the power grid state, resulting in a decrease in the power quality of the power grid.

[0005] The technical solution of the present invention is achieved as follows:

[0006] A high-efficiency hybrid filter cabinet, comprising:

[0007] Three-phase reactive power compensation capacitors are used to detect the power factor of the power grid in real time and perform reactive power compensation;

[0008] A three-phase harmonic filter reactor, used in conjunction with the three-phase reactive power compensation capacitor to eliminate load harmonics in the power grid;

[0009] The control module is used to dynamically monitor the state of the power grid and adjust the working states of the three-phase reactive power compensation capacitor and the three-phase harmonic filter reactor according to the monitoring results to achieve dynamic harmonic suppression.

[0010] As a further optional solution of the high-efficiency hybrid filter cabinet, the three-phase reactive power compensation capacitor detects the power factor of the power grid in real time and performs reactive power compensation, specifically including:

[0011] Obtain the current voltage and current data of the power grid;

[0012] Calculate the current power factor based on the current voltage and current data;

[0013] According to the currently measured power factor and the expected power factor, the tangent value of the power factor angle before compensation and the tangent value of the power factor angle expected to be achieved after compensation are calculated;

[0014] Calculate the required reactive power compensation capacity based on the tangent value of the power factor angle before compensation, the desired tangent value of the power factor angle after compensation, and the maximum active power of the power grid;

[0015] Reactive power compensation is performed according to the required reactive power compensation capacity.

[0016] As a further optional solution for the high-efficiency hybrid filter cabinet, the required reactive compensation capacity is calculated based on the tangent value of the power factor angle before compensation, the tangent value of the power factor angle expected to be achieved after compensation, and the maximum active power of the power grid. The specific calculation formula is:

[0017] Qc=k×P×(tanφ1-tanφ2);

[0018] Where Qc represents the required reactive power compensation capacity, k is the adjustment coefficient, which is set according to the specific conditions of the power grid, P is the maximum active power of the power grid, tanφ1 is the tangent value of the power factor angle before compensation, and tanφ2 is the tangent value of the power factor angle expected to be achieved after compensation.

[0019] As a further optional solution of the high-efficiency hybrid filter cabinet, the three-phase harmonic filter reactor eliminates load harmonics in the power grid, specifically including:

[0020] Obtain harmonic current and rated voltage of the power grid;

[0021] Determine the harmonic order that needs to be filtered out;

[0022] The inductance value of the required filter reactor is calculated based on the rated voltage, frequency, harmonic current and harmonic order of the power grid;

[0023] According to the calculated inductance value, select a filter reactor with a corresponding inductance value;

[0024] Eliminate load harmonics in the power grid based on filter reactors.

[0025] As a further optional solution for the high-efficiency hybrid filter cabinet, the inductance value of the required filter reactor is calculated based on the rated voltage, frequency, harmonic current and harmonic order of the power grid. The specific calculation formula is:

[0026]

[0027] Where L is the inductance of the required filter reactor, vrms is the effective value of the rated voltage of the grid, f is the frequency of the grid, I his the effective value of the harmonic current that needs to be filtered, n is the order of the harmonic, and b is an adjustment coefficient, which is determined according to the design of the filter and the specific conditions of the power grid.

[0028] As a further optional solution of the high-efficiency hybrid filter cabinet, the control module dynamically monitors the grid status and adjusts the working status of the three-phase reactive compensation capacitor and the three-phase harmonic filter reactor according to the monitoring results, specifically including:

[0029] Monitor the grid status in real time and obtain current and voltage data in the grid;

[0030] Analyze the acquired data to identify the harmonic components and frequencies in the power grid;

[0031] Dynamically adjust the operating parameters of the three-phase reactive compensation capacitor and the three-phase harmonic filter reactor according to the identified harmonic components;

[0032] Monitor the adjusted grid status in real time, evaluate the harmonic suppression effect, and further adjust the operating parameters of the three-phase reactive compensation capacitors and three-phase harmonic filter reactors based on the evaluation results.

[0033] A dynamic harmonic suppression method for a high-efficiency hybrid filter cabinet, specifically comprising:

[0034] Monitor the grid status in real time and obtain current and voltage data in the grid;

[0035] The control module is used to analyze the acquired data and identify the harmonic components and frequencies in the power grid;

[0036] According to the identified harmonic components, the operating parameters of the three-phase reactive compensation capacitor and the three-phase harmonic filter reactor are dynamically adjusted to suppress the harmonics in the power grid;

[0037] The three-phase reactive power compensation capacitor is used to detect the power factor of the power grid in real time and perform reactive power compensation. The three-phase harmonic filter reactor cooperates with the three-phase reactive power compensation capacitor to eliminate load harmonics in the power grid.

[0038] As a further optional solution of the dynamic harmonic suppression method for a high-efficiency hybrid filter cabinet, the method further includes:

[0039] Establish a harmonic database to store common harmonic components and their corresponding suppression strategies;

[0040] When monitoring and analyzing power grid data in real time, compare it with the harmonic database and select the appropriate suppression strategy.

[0041] A computing device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the steps of the above-mentioned method for dynamic harmonic suppression of a high-efficiency hybrid filter cabinet when executing the computer program.

[0042] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of any one of the above-mentioned methods for dynamic harmonic suppression in a high-efficiency hybrid filter cabinet.

[0043] The beneficial effects of the present invention are as follows: through the three-phase reactive power compensation capacitor, the filter cabinet can detect the power factor of the power grid in real time. When the power factor is detected to be lower than the set value, the capacitor will automatically perform reactive power compensation, thereby improving the power factor of the power grid, which helps to reduce the reactive power flow in the power grid, reduce line losses, and improve the transmission efficiency of the power grid. The three-phase harmonic filter reactor is used in conjunction with the three-phase reactive power compensation capacitor to effectively eliminate the load harmonics in the power grid. By filtering out these harmonics, the filter cabinet can protect the equipment in the power grid from harmonic damage and extend the service life of the equipment. The control module is the core component of the filter cabinet, which is responsible for Dynamically monitor the grid status. By real-time monitoring of grid parameters such as current and voltage, the control module can accurately determine whether there are harmonic problems in the grid and adjust the working status of the three-phase reactive compensation capacitor and three-phase harmonic filter reactor based on the monitoring results. This dynamic adjustment mechanism enables the filter cabinet to quickly respond to harmonic changes in the grid and achieve real-time harmonic suppression. At the same time, the application of the control module enables the filter cabinet to have intelligent management functions. Through remote monitoring and data analysis, managers can understand the operating status of the grid in real time and promptly discover and deal with potential problems, which helps to reduce operation and maintenance costs and improve grid management efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 This is a schematic diagram of the composition of a high-efficiency hybrid filter cabinet of the present invention;

[0046] Figure 2 This is a flow chart of a dynamic harmonic suppression method for a high-efficiency hybrid filter cabinet according to the present invention;

[0047] Figure 3 A schematic diagram of the composition of a computing device according to the present invention. DETAILED DESCRIPTION

[0048] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] refer to Figures 1 to 3 , a high-efficiency hybrid filter cabinet, comprising:

[0050] Three-phase reactive power compensation capacitors are used to detect the power factor of the power grid in real time and perform reactive power compensation;

[0051] A three-phase harmonic filter reactor, used in conjunction with the three-phase reactive power compensation capacitor to eliminate load harmonics in the power grid;

[0052] The control module is used to dynamically monitor the state of the power grid and adjust the working states of the three-phase reactive power compensation capacitor and the three-phase harmonic filter reactor according to the monitoring results to achieve dynamic harmonic suppression.

[0053] In this embodiment, the filter cabinet can detect the power factor of the power grid in real time through the three-phase reactive power compensation capacitor. When the power factor is detected to be lower than the set value, the capacitor will automatically perform reactive power compensation, thereby improving the power factor of the power grid. This helps to reduce the reactive power flow in the power grid, reduce line losses, and improve the transmission efficiency of the power grid. The three-phase harmonic filter reactor is used in conjunction with the three-phase reactive power compensation capacitor to effectively eliminate the load harmonics in the power grid. By filtering out these harmonics, the filter cabinet can protect the equipment in the power grid from harmonic damage and extend the service life of the equipment. The control module is the core component of the filter cabinet, which is responsible for dynamic Dynamic monitoring of the grid status. By real-time monitoring of grid parameters such as current and voltage, the control module can accurately determine whether there are harmonic problems in the grid and adjust the working status of the three-phase reactive compensation capacitor and three-phase harmonic filter reactor according to the monitoring results. This dynamic adjustment mechanism enables the filter cabinet to quickly respond to harmonic changes in the grid and achieve real-time harmonic suppression. At the same time, the application of the control module enables the filter cabinet to have intelligent management functions. Through remote monitoring and data analysis, managers can understand the operating status of the grid in real time and promptly discover and deal with potential problems, which helps to reduce operation and maintenance costs and improve grid management efficiency.

[0054] Preferably, the three-phase reactive power compensation capacitor detects the power factor of the power grid in real time and performs reactive power compensation, specifically including:

[0055] Obtain the current voltage and current data of the power grid;

[0056] Calculate the current power factor based on the current voltage and current data;

[0057] According to the currently measured power factor and the expected power factor, the tangent value of the power factor angle before compensation and the tangent value of the power factor angle expected to be achieved after compensation are calculated;

[0058] Calculate the required reactive power compensation capacity based on the tangent value of the power factor angle before compensation, the desired tangent value of the power factor angle after compensation, and the maximum active power of the power grid;

[0059] Reactive power compensation is performed according to the required reactive power compensation capacity.

[0060] In this embodiment, by acquiring the current voltage and current data of the power grid, the operating status of the power grid can be reflected in real time. The power factor calculated based on this data is highly accurate, providing a reliable basis for subsequent reactive power compensation. The tangent value of the power factor angle before and after compensation is calculated based on the currently measured power factor and the expected power factor. This quantitative analysis makes the compensation process more accurate and avoids over-compensation or under-compensation. By calculating the required reactive compensation capacity, the solution can flexibly adjust the compensation strategy according to actual conditions. This dynamic adjustment mechanism ensures that the power grid can maintain a high power factor under any load conditions, thereby improving the transmission efficiency and stability of the power grid. Reactive power compensation can reduce the flow of reactive power in the power grid and reduce line losses. By accurately calculating and compensating the required reactive power, the solution effectively improves the transmission efficiency of the power grid and reduces energy waste. The solution realizes real-time monitoring and compensation of the power factor of the power grid, providing possibilities for intelligent management of the power system. By integrating remote monitoring and data analysis functions, managers can understand the operating status of the power grid in real time, promptly identify and address potential problems, and improve the management efficiency of the power grid.

[0061] Preferably, the required reactive compensation capacity is calculated based on the tangent value of the power factor angle before compensation, the tangent value of the power factor angle expected to be achieved after compensation, and the maximum active power of the power grid. The specific calculation formula is:

[0062] Qc=k×P×(tanφ1-tanφ2);

[0063] Where Qc represents the required reactive power compensation capacity, k is the adjustment coefficient, which is set according to the specific conditions of the power grid, P is the maximum active power of the power grid, tanφ1 is the tangent value of the power factor angle before compensation, and tanφ2 is the tangent value of the power factor angle expected to be achieved after compensation.

[0064] In this embodiment, the various parameters in the formula (k, P, tanφ1, tanφ2) are all based on the actual operating data of the power grid and the desired target setting. Therefore, the required reactive compensation capacity can be accurately calculated. This accuracy ensures the targeted and effective compensation process and avoids the problem of over- or under-compensation. The introduction of the adjustment coefficient k enables the formula to flexibly adapt to the specific conditions of different power grids. Based on factors such as the grid structure, load characteristics, and operating conditions, the k value can be reasonably set to ensure that the compensation strategy matches the actual needs of the grid. This calculation formula can be integrated into the intelligent management system of the power system to achieve automated and intelligent reactive compensation. By monitoring the power grid data in real time, the system can automatically calculate the required reactive compensation capacity and issue control instructions to adjust the operating status of the capacitor bank. This intelligent management method improves the management efficiency and response speed of the power grid.

[0065] Preferably, the three-phase harmonic filter reactor eliminates load harmonics in the power grid, specifically including:

[0066] Obtain harmonic current and rated voltage of the power grid;

[0067] Determine the harmonic order that needs to be filtered out;

[0068] The inductance value of the required filter reactor is calculated based on the rated voltage, frequency, harmonic current and harmonic order of the power grid;

[0069] According to the calculated inductance value, select a filter reactor with a corresponding inductance value;

[0070] Eliminate load harmonics in the power grid based on filter reactors.

[0071] In this embodiment, the harmonic current and rated voltage of the power grid are first obtained, which is the basis for formulating a customized filtering solution. By accurately measuring these parameters, it can be ensured that the selected filter inductor is highly matched with the actual needs of the power grid. Determining the harmonic order that needs to be filtered is one of the key steps of the solution, which helps to accurately identify the harmonic pollution in the power grid and select filter inductors that can filter these specific harmonics in a targeted manner. The inductance value calculated based on the rated voltage, frequency, harmonic current and harmonic order of the power grid is an important basis for selecting the filter inductor. Through accurate calculation, it can be ensured that the inductance value of the selected inductor can effectively filter the target harmonics, thereby improving the filtering efficiency. The use of filter inductors can effectively reduce harmonic losses in the power grid. Harmonics not only increase the ineffective losses of the power grid, but may also cause damage to electrical equipment. By filtering harmonics, these losses can be reduced and the energy efficiency of the power grid can be improved. The solution provides a method for calculating the inductance value based on the power grid parameters, making the selection of filter inductors more standardized, which helps to reduce the difficulty of selection and improve the selection efficiency.

[0072] Preferably, the inductance value of the required filter reactor is calculated based on the rated voltage, frequency, harmonic current and harmonic order of the power grid, and the specific calculation formula is:

[0073]

[0074] Where L is the inductance of the required filter reactor, vrms is the effective value of the rated voltage of the grid, f is the frequency of the grid, I h is the effective value of the harmonic current that needs to be filtered, n is the order of the harmonic, and b is an adjustment coefficient, which is determined according to the design of the filter and the specific conditions of the power grid.

[0075] In this embodiment, by comprehensively considering multiple parameters of the power grid (rated voltage, frequency, harmonic current, harmonic order), the required filter inductor inductance value can be accurately calculated. This precise matching ensures the effectiveness and reliability of the filter inductor in practical applications; through the accurately calculated inductance value, the selected filter inductor can more effectively filter out the harmonic current in the power grid, which helps to reduce the potential damage of harmonics to the power grid and electrical equipment, and improve the power quality and stability of the power grid; the introduction of the adjustment coefficient b enables the technical solution to flexibly adapt to the specific conditions of different power grids. According to the design of the filter and the actual needs of the power grid, the b value can be reasonably set to ensure that the performance of the filter inductor matches the requirements of the power grid; by integrating the calculation formula into the intelligent monitoring system of the power system, the power grid parameters can be monitored in real time, and the working status of the filter inductor can be automatically adjusted to achieve more efficient and intelligent power grid management.

[0076] Preferably, the control module dynamically monitors the state of the power grid and adjusts the working state of the three-phase reactive power compensation capacitor and the three-phase harmonic filter reactor according to the monitoring result, specifically including:

[0077] Monitor the grid status in real time and obtain current and voltage data in the grid;

[0078] Analyze the acquired data to identify the harmonic components and frequencies in the power grid;

[0079] Dynamically adjust the operating parameters of the three-phase reactive compensation capacitor and the three-phase harmonic filter reactor according to the identified harmonic components;

[0080] Monitor the adjusted grid status in real time, evaluate the harmonic suppression effect, and further adjust the operating parameters of the three-phase reactive compensation capacitors and three-phase harmonic filter reactors based on the evaluation results.

[0081] In this embodiment, by real-time monitoring of the grid status and obtaining current and voltage data, it is possible to quickly respond to changes in the grid. This real-time monitoring and rapid response capabilities help to promptly discover and deal with potential problems in the grid, thereby improving the stability and reliability of the grid; by analyzing the acquired data, it is possible to accurately identify the harmonic components and their frequencies in the grid, and dynamically adjust the operating parameters of the three-phase reactive compensation capacitor and the three-phase harmonic filter reactor based on the identified harmonic components. This dynamic adjustment can ensure the accuracy and effectiveness of reactive compensation and harmonic suppression, thereby further improving the power quality of the grid; by real-time monitoring of the adjusted grid status, evaluating the harmonic suppression effect, and further adjusting the operating parameters based on the evaluation results, this feedback mechanism can continuously optimize the effect of reactive compensation and harmonic suppression, and improve the efficiency of compensation and filtering; through effective harmonic suppression, the propagation and loss of harmonics in the grid can be reduced, which helps to reduce the power loss of the grid and improve the energy efficiency of the grid.

[0082] A dynamic harmonic suppression method for a high-efficiency hybrid filter cabinet, specifically comprising:

[0083] Monitor the grid status in real time and obtain current and voltage data in the grid;

[0084] The control module is used to analyze the acquired data and identify the harmonic components and frequencies in the power grid;

[0085] According to the identified harmonic components, the operating parameters of the three-phase reactive compensation capacitor and the three-phase harmonic filter reactor are dynamically adjusted to suppress the harmonics in the power grid;

[0086] The three-phase reactive power compensation capacitor is used to detect the power factor of the power grid in real time and perform reactive power compensation. The three-phase harmonic filter reactor cooperates with the three-phase reactive power compensation capacitor to eliminate load harmonics in the power grid.

[0087] Preferably, the method further comprises:

[0088] Establish a harmonic database to store common harmonic components and their corresponding suppression strategies;

[0089] When monitoring and analyzing power grid data in real time, compare it with the harmonic database and select the appropriate suppression strategy.

[0090] In this embodiment, by establishing a harmonic database, common harmonic components and their corresponding suppression strategies are stored. When monitoring and analyzing power grid data in real time, the system can quickly compare with the harmonic database and select the suppression strategy that best suits the current harmonic components. This precise matching ensures the pertinence and effectiveness of harmonic suppression and avoids the waste of time and resources caused by blindly trying different strategies. With the support of the harmonic database, the system can identify harmonics more quickly and take corresponding suppression measures, which helps to shorten the response time of harmonic suppression and improve the recovery speed and stability of the power grid. By comparing the harmonic database, the required compensation capacity and the inductance value of the filter reactor can be accurately calculated, avoiding the waste of resources caused by over-compensation, which helps Reduce the operating costs of power companies and improve economic benefits; accurate harmonic suppression strategies can reduce the failure rate of equipment caused by harmonic damage, thereby reducing equipment maintenance costs. At the same time, the establishment of a harmonic database also facilitates the continuous optimization and updating of harmonic suppression strategies, reducing the additional maintenance costs caused by improper strategies; the establishment of a harmonic database provides the system with a rich knowledge base of harmonic suppression strategies. When monitoring and analyzing power grid data in real time, it can make intelligent decisions based on these data and knowledge base and select the most suitable suppression strategy. By comparing with the harmonic database and selecting the suppression strategy, a more automated harmonic suppression process can be achieved, which helps to reduce the burden of manual intervention and improve the operating efficiency and automation level of the power grid.

[0091] A computing device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the steps of the above-mentioned method for dynamic harmonic suppression of a high-efficiency hybrid filter cabinet when executing the computer program.

[0092] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of any one of the above-mentioned methods for dynamic harmonic suppression in a high-efficiency hybrid filter cabinet.

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency hybrid filter cabinet, characterized in that: include: Three-phase reactive power compensation capacitors are used to detect the power factor of the power grid in real time and perform reactive power compensation; A three-phase harmonic filter reactor, used in conjunction with the three-phase reactive power compensation capacitor to eliminate load harmonics in the power grid; The control module is used to dynamically monitor the state of the power grid and adjust the working states of the three-phase reactive power compensation capacitor and the three-phase harmonic filter reactor according to the monitoring results to achieve dynamic harmonic suppression.

2. A high-efficiency hybrid filter cabinet according to claim 1, characterized in that: The three-phase reactive power compensation capacitor detects the power factor of the power grid in real time and performs reactive power compensation, specifically including: Obtain the current voltage and current data of the power grid; Calculate the current power factor based on the current voltage and current data; According to the currently measured power factor and the expected power factor, the tangent value of the power factor angle before compensation and the tangent value of the power factor angle expected to be achieved after compensation are calculated; Calculate the required reactive power compensation capacity based on the tangent value of the power factor angle before compensation, the desired tangent value of the power factor angle after compensation, and the maximum active power of the power grid; Reactive power compensation is performed according to the required reactive power compensation capacity.

3. A high-efficiency hybrid filter cabinet according to claim 2, characterized in that: The required reactive power compensation capacity is calculated based on the tangent value of the power factor angle before compensation, the tangent value of the power factor angle expected to be achieved after compensation, and the maximum active power of the power grid. The specific calculation formula is: Qc=k×P×(tanφ1-tanφ2); Where Qc represents the required reactive power compensation capacity, k is the adjustment coefficient, which is set according to the specific conditions of the power grid, P is the maximum active power of the power grid, tanφ1 is the tangent value of the power factor angle before compensation, and tanφ2 is the tangent value of the power factor angle expected to be achieved after compensation.

4. A high-efficiency hybrid filter cabinet according to claim 3, characterized in that: The three-phase harmonic filter reactor eliminates load harmonics in the power grid, specifically including: Obtain harmonic current and rated voltage of the power grid; Determine the harmonic order that needs to be filtered out; The inductance value of the required filter reactor is calculated based on the rated voltage, frequency, harmonic current and harmonic order of the power grid; According to the calculated inductance value, select a filter reactor with a corresponding inductance value; Eliminate load harmonics in the power grid based on filter reactors.

5. The high-efficiency hybrid filter cabinet according to claim 4, characterized in that: The inductance value of the required filter reactor is calculated based on the rated voltage, frequency, harmonic current and harmonic order of the power grid. The specific calculation formula is: Where L is the inductance of the required filter reactor, vrms is the effective value of the rated voltage of the grid, f is the frequency of the grid, I h is the effective value of the harmonic current that needs to be filtered, n is the order of the harmonic, and b is an adjustment coefficient, which is determined according to the design of the filter and the specific conditions of the power grid.

6. The high-efficiency hybrid filter cabinet according to claim 5, characterized in that: The control module dynamically monitors the state of the power grid and adjusts the working state of the three-phase reactive power compensation capacitor and the three-phase harmonic filter reactor according to the monitoring results, specifically including: Monitor the grid status in real time and obtain current and voltage data in the grid; Analyze the acquired data to identify the harmonic components and frequencies in the power grid; Dynamically adjust the operating parameters of the three-phase reactive compensation capacitor and the three-phase harmonic filter reactor according to the identified harmonic components; Monitor the adjusted grid status in real time, evaluate the harmonic suppression effect, and further adjust the operating parameters of the three-phase reactive compensation capacitors and three-phase harmonic filter reactors based on the evaluation results.

7. A dynamic harmonic suppression method for a high-efficiency hybrid filter cabinet, characterized in that: Specifically include: Monitor the grid status in real time and obtain current and voltage data in the grid; The control module is used to analyze the acquired data and identify the harmonic components and frequencies in the power grid; According to the identified harmonic components, the operating parameters of the three-phase reactive compensation capacitor and the three-phase harmonic filter reactor are dynamically adjusted to suppress the harmonics in the power grid; The three-phase reactive power compensation capacitor is used to detect the power factor of the power grid in real time and perform reactive power compensation. The three-phase harmonic filter reactor cooperates with the three-phase reactive power compensation capacitor to eliminate load harmonics in the power grid.

8. The method for dynamic harmonic suppression for a high-efficiency hybrid filter cabinet according to claim 7, characterized in that: The method further comprises: Establish a harmonic database to store common harmonic components and their corresponding suppression strategies; When monitoring and analyzing power grid data in real time, compare it with the harmonic database and select the appropriate suppression strategy.

9. A computing device, characterized in that The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the dynamic harmonic suppression method for a high-efficiency hybrid filter cabinet according to any one of claims 7 to 8 are implemented.

10. A computer-readable storage medium, characterized in that The storage medium stores a computer program, which, when executed by a processor, implements the steps of the dynamic harmonic suppression method for a high-efficiency hybrid filter cabinet as described in any one of claims 7 to 8.

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