A power control management device based on micro-grid power consumption
Patent Information
- Application Number
- CN202522477144.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-21
AI Technical Summary
[0004]但是，现有的装置，存在低频磁场屏蔽能力薄弱问题：目前装置主要在壳体内设置镀锌钢板抗干扰，其导电性尚可，但导磁性能较差
[0018]1、该技术通过多层屏蔽结构协同作用削弱低频磁场干扰，内层镀锌钢板屏蔽层利用自身导电性对低频磁场进行初步屏蔽，柔性坡莫合金薄片凭借高导磁特性吸收并衰减低频磁场，矩阵式铁氧体贴片进一步对剩余低频磁场进行吸收与散射以增强屏蔽效果；避免其干扰内部数据采集模块、中央控制单元等核心结构的芯片运算，防止芯片逻辑判断出错和数据处理偏差，确保中央控制单元能准确分析数据并下发调度指令，保障执行机构对电源输出与负荷分配的调节精准性，维持微电网功率平衡及电压、频率稳定，解决现有装置因低频磁场屏蔽薄弱导致的运行异常问题；
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Figure CN224909985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microgrid technology, and in particular to a power control and management device based on microgrid power consumption. Background Technology
[0002] To coordinate the output fluctuations of distributed power sources such as photovoltaics and wind power to avoid supply and demand imbalances that could lead to voltage or frequency anomalies, optimize power dispatch to reduce power supply losses and improve the economic efficiency of microgrid operation, achieve smooth switching between grid-connected and islanded modes to adapt to the self-supply needs of areas with insufficient grid coverage, and monitor power quality and equipment status, as well as quickly isolate faults to protect equipment and power safety, microgrid power control and management devices (microgrid coordinating controllers or distributed power source coordinating controllers) are used to ensure the safe and stable operation of microgrids and meet special power needs.
[0003] The microgrid coordinating controller's internal structure mainly includes a data acquisition module, a central control unit, a communication module, actuators (such as relays and frequency converters), and a protection module. Its core functions are data collection, command processing, and execution. During operation, the initial wiring and communication configuration between the device and the power supply, load, and energy storage devices within the microgrid are completed. After startup, the data acquisition module acquires real-time data on power output, load demand, and power quality. The central control unit analyzes and calculates this data before issuing dispatch commands. The actuators then adjust power output and load distribution. Simultaneously, the protection module monitors for faults and triggers isolation. During operation, it can switch between grid-connected and islanded modes as needed, and periodically performs equipment status checks and parameter calibrations.
[0004] However, existing devices suffer from weak low-frequency magnetic field shielding capabilities: current devices primarily use galvanized steel plates inside the casing for interference suppression, which have acceptable conductivity but poor magnetic permeability. In microgrid scenarios, low-frequency magnetic field interference is generated by equipment such as transformers and motors. This low-frequency magnetic field is difficult to weaken and can easily penetrate the shielding layer, interfering with the internal chip operations of the controller. This can lead to errors in chip logic judgments and data processing deviations, resulting in inaccurate power output and load distribution regulation, causing power imbalance, voltage or frequency fluctuations in the microgrid. Therefore, we propose a microgrid-based power control and management device to address the problems encountered in existing technologies. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] A power control and management device based on microgrid power consumption includes an isolator disposed within the housing of a microgrid coordinator controller. The isolator includes an inner galvanized steel plate shielding layer disposed within the housing of the microgrid coordinator controller. A flexible permalloy sheet and a matrix ferrite patch are disposed on one side of the inner galvanized steel plate shielding layer.
[0008] As a preferred embodiment of the microgrid-based power control and management device of this utility model, the inner wall of the housing of the microgrid coordinating controller is fixed by welding the inner galvanized steel plate shielding layer.
[0009] As a preferred embodiment of the microgrid-based power control and management device of this utility model, the inner galvanized steel plate shielding layer is fixed with a flexible permalloy sheet by thermally conductive silicone grease bonding and electric welding, and a micro weld point is provided every 20 mm along the edge of the flexible permalloy sheet.
[0010] As a preferred embodiment of the microgrid-based power control and management device of this utility model, wherein: the inner side of the flexible permalloy sheet is provided with an elastic thermally conductive pad through thermally conductive silicone grease.
[0011] In a preferred embodiment of the microgrid-based power control and management device of this utility model, the elastic thermal pad is arranged in a honeycomb pattern.
[0012] As a preferred embodiment of the microgrid-based power control and management device of this utility model, the inner side of the elastic thermal pad is provided with a matrix of ferrite patches through thermal grease.
[0013] As a preferred embodiment of the microgrid-based power control and management device of this utility model, the outer side of the matrix ferrite patch and the inner side of the elastic thermal pad are filled with ferrite gap flexible thermal conductive adhesive.
[0014] As a preferred embodiment of the microgrid-based power control and management device of this utility model, the inner sides of the flexible permalloy sheet, the elastic thermal pad, and the matrix ferrite patch are all bonded with a frame of flexible thermally conductive adhesive.
[0015] As a preferred embodiment of the microgrid-based power control and management device of this utility model, a composite sandwich frame is provided around the inner galvanized steel plate shielding layer, the flexible permalloy sheet, the elastic thermal conductive pad, and the matrix ferrite patch.
[0016] As a preferred embodiment of the microgrid-based power control and management device of this utility model, the inner wall of the composite sandwich frame is bonded to the outer periphery of the inner galvanized steel plate shielding layer, the flexible permalloy sheet, the elastic thermal pad and the matrix ferrite patch by annular conductive damping adhesive. A guide rail is integrally provided inside the housing of the microgrid coordinator, and a groove is provided inside the composite sandwich frame, which fits into the guide rail.
[0017] The beneficial effects of this utility model are:
[0018] 1. This technology weakens low-frequency magnetic field interference through the synergistic effect of a multi-layer shielding structure. The inner galvanized steel plate shielding layer uses its own conductivity to initially shield the low-frequency magnetic field. The flexible permalloy sheet absorbs and attenuates the low-frequency magnetic field due to its high magnetic permeability. The matrix ferrite patch further absorbs and scatters the remaining low-frequency magnetic field to enhance the shielding effect. This prevents interference with the chip operation of core structures such as the internal data acquisition module and the central control unit, prevents chip logic judgment errors and data processing deviations, ensures that the central control unit can accurately analyze data and issue scheduling instructions, ensures the accuracy of the actuator's adjustment of power output and load distribution, maintains the power balance of the microgrid and the stability of voltage and frequency, and solves the problem of abnormal operation caused by weak low-frequency magnetic field shielding in existing devices.
[0019] 2. Flexible thermally conductive adhesive fills the gaps between the matrix ferrite patch and the elastic thermally conductive pad. Flexible thermally conductive adhesive in the frame adheres to the inner side of the flexible permalloy sheet, the elastic thermally conductive pad and the matrix ferrite patch. The two work together to reduce the gaps between the layers and also prevent magnetic fields from penetrating through the gaps. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0021] Figure 1 This is a schematic diagram of an overall power control and management device based on a microgrid.
[0022] Figure 2 This is a cross-sectional view of the casing of a power control and management device based on a microgrid.
[0023] Figure 3 This is a schematic diagram of an isolation component for a microgrid-based power control and management device.
[0024] Figure 4 A power control and management device based on microgrid power consumption Figure 3 Enlarged schematic diagram of point a in the middle.
[0025] Figure 5 A power control and management device based on microgrid power consumption Figure 2 Enlarged diagram of point b in the middle.
[0026] The diagram is labeled as follows: 1. Microgrid coordinator; 2. Isolator; 21. Inner galvanized steel shielding layer; 22. Flexible permalloy sheet; 23. Elastic thermally conductive pad; 24. Matrix ferrite patch; 25. Composite sandwich frame; 26. Frame flexible thermally conductive adhesive; 27. Ferrite gap flexible thermally conductive adhesive; 28. Groove; 3. Guide rail. Detailed Implementation
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0030] Example 1:
[0031] Reference Figures 1 to 5 This is the first embodiment of the present utility model. This embodiment provides a power control and management device based on microgrid power consumption, including an isolation component 2 disposed in the housing of the microgrid coordinator 1. The isolation component 2 includes an inner galvanized steel plate shielding layer 21 disposed in the housing of the microgrid coordinator 1. A flexible permalloy sheet 22 and a matrix ferrite patch 24 are disposed on one side of the inner galvanized steel plate shielding layer 21.
[0032] The combination of the inner galvanized steel plate shielding layer 21, the flexible permalloy sheet 22, and the matrix ferrite patch 24 forms a multi-layer shielding structure. Its core function is to enhance the shielding capability of the microgrid coordinator 1 against low-frequency magnetic fields. The inner galvanized steel plate shielding layer 21 uses its conductivity to provide initial shielding, the flexible permalloy sheet 22 absorbs and attenuates low-frequency magnetic fields due to its high magnetic permeability, and the matrix ferrite patch 24 further absorbs and scatters the remaining magnetic field. Together, they weaken the low-frequency magnetic field interference generated by transformers, motors, and other equipment in the microgrid, preventing it from penetrating the shielding layer and affecting the operation of the internal chip of the controller, thus ensuring the stable operation of the device.
[0033] It should be noted that the microgrid coordinating controller 1 mainly consists of a data acquisition module, a central control unit, a communication module, actuators (such as relays and frequency converters), and a protection module. Its operating principle involves initial wiring and communication configuration between the device and the power supply, load, and energy storage devices within the microgrid. After startup, the data acquisition module acquires real-time data on power output, load demand, and power quality. The central control unit analyzes and calculates this data before issuing dispatch commands. The actuators then adjust power output and load distribution. Simultaneously, the protection module monitors for faults in real-time and triggers isolation. During operation, it can switch between grid-connected and islanded modes as needed, and periodic equipment status checks and parameter calibrations ensure operational stability. This is existing technology and will not be described in detail here.
[0034] Example 2:
[0035] Reference Figure 3 and Figure 4 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0036] Specifically, Figure 3 In the microgrid coordinator 1, the inner wall of the housing is fixed with the inner galvanized steel plate shielding layer 21 by welding;
[0037] The inner galvanized steel plate shielding layer 21 is used to ensure the stability of the inner shielding base structure and to provide an initial conductive shielding carrier.
[0038] Specifically, Figure 3 In the middle, the inner galvanized steel plate shielding layer 21 is fixed to the flexible permalloy sheet 22 by thermally conductive silicone grease bonding and electric welding, and a micro weld point is provided every 20 mm along the edge of the flexible permalloy sheet 22.
[0039] Micro-solder points are placed every 20mm along the edge to enhance the tightness of the fit between the two, reduce gaps to improve the absorption effect of low-frequency magnetic fields, and ensure connection strength.
[0040] Specifically, Figure 3In the middle, an elastic thermally conductive pad 23 is provided on the inner side of the flexible permalloy sheet 22 through thermally conductive silicone grease; the elastic thermally conductive pad 23 is arranged in a honeycomb pattern;
[0041] The elastic thermal pad 23, which is provided by thermal grease, is used to fill the gaps and conduct heat. The honeycomb-shaped elastic thermal pad 23 can enhance heat dissipation while ensuring a good fit.
[0042] Specifically, Figure 3 In the middle, a matrix of ferrite patches 24 is set on the inner side of the elastic thermal pad 23 through thermal silicone grease;
[0043] By utilizing the properties of ferrite to further attenuate low-frequency magnetic fields, thermal grease can enhance adhesion and thermal conductivity.
[0044] Specifically, Figure 4 In the middle, the outer side of the matrix ferrite patch 24 and the inner side of the elastic thermal pad 23 are filled with ferrite gap flexible thermal conductive adhesive 27; the flexible permalloy sheet 22, the elastic thermal pad 23 and the inner side of the matrix ferrite patch 24 are all bonded with frame flexible thermal conductive adhesive 26.
[0045] The flexible thermally conductive adhesive 27 filled with ferrite gaps and the flexible thermally conductive adhesive 26 in the frame are both used to seal the gaps between the layers, preventing magnetic field penetration and assisting in heat dissipation.
[0046] Example 3:
[0047] Reference Figure 3 and Figure 5 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0048] Specifically, Figure 3 In the middle, a composite sandwich frame 25 is provided around the inner galvanized steel plate shielding layer 21, the flexible permalloy sheet 22, the elastic thermal conductive pad 23, and the matrix ferrite patch 24; the inner wall of the composite sandwich frame 25 is bonded to the outer periphery of the inner galvanized steel plate shielding layer 21, the flexible permalloy sheet 22, the elastic thermal conductive pad 23, and the matrix ferrite patch 24 by annular conductive damping adhesive; a guide rail 3 is integrally provided inside the housing of the microgrid coordinator 1; a groove 28 is provided inside the composite sandwich frame 25, and the groove 28 fits into the guide rail 3;
[0049] The inner wall of the composite sandwich frame 25 is bonded to the outer periphery of each shielding layer with annular conductive damping adhesive and fitted with the guide rail 3 through the groove 28. This seals the edge of the shielding structure, enhances the overall stability, and further blocks the magnetic field from penetrating through the edge gaps.
[0050] Working principle: This technology weakens low-frequency magnetic field interference through the synergistic effect of multi-layer shielding structure. The inner galvanized steel plate shielding layer 21 uses its own conductivity to initially shield the low-frequency magnetic field. The flexible permalloy sheet 22 absorbs and attenuates the low-frequency magnetic field with its high magnetic permeability. The matrix ferrite patch 24 further absorbs and scatters the remaining low-frequency magnetic field to enhance the shielding effect.
[0051] The ferrite gap flexible thermal conductive adhesive 27 is filled between the matrix ferrite patch 24 and the elastic thermal conductive pad 23, and the frame flexible thermal conductive adhesive 26 is bonded to the inner side of the flexible permalloy sheet 22, the elastic thermal conductive pad 23 and the matrix ferrite patch 24. The two work together to reduce the gaps between the layers and prevent the magnetic field from penetrating through the gaps.
[0052] The composite sandwich frame 25 is bonded to the periphery of each shielding layer by annular conductive damping adhesive, and is fixed by the groove 28 and the guide rail 3, further sealing the edge gaps of the shielding structure. At the same time, the honeycomb structure of the elastic thermal pad 23 ensures that each shielding layer fits tightly while also taking into account heat dissipation.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A power control and management device based on a microgrid, comprising an isolator (2) disposed within the housing of a microgrid coordinator (1), characterized in that: The isolation component (2) includes an inner galvanized steel plate shielding layer (21) disposed inside the housing of the microgrid coordinator (1), and a flexible permalloy sheet (22) and a matrix ferrite patch (24) are disposed on one side of the inner galvanized steel plate shielding layer (21).
2. The microgrid-based power control and management device as described in claim 1, characterized in that: The inner wall of the housing of the microgrid coordinator (1) is fixed by welding the inner galvanized steel plate shielding layer (21).
3. The power control and management device based on microgrid electricity consumption as described in claim 1, characterized in that: The inner galvanized steel shielding layer (21) is fixed to the flexible permalloy sheet (22) by thermally conductive silicone grease bonding and electric welding, and a micro weld point is provided every twenty mm along the edge of the flexible permalloy sheet (22).
4. The microgrid-based power control and management device as described in claim 3, characterized in that: The inner side of the flexible permalloy sheet (22) is provided with an elastic thermal pad (23) through thermally conductive silicone grease.
5. The power control and management device based on a microgrid as described in claim 4, characterized in that: The elastic thermally conductive pad (23) is arranged in a honeycomb pattern.
6. The microgrid-based power control and management device as described in claim 5, characterized in that: The inner side of the elastic thermal pad (23) is provided with a matrix of ferrite patches (24) through thermal grease.
7. The microgrid-based power control and management device as described in claim 6, characterized in that: The outer side of the matrix ferrite patch (24) and the inner side of the elastic thermal pad (23) are filled with ferrite gap flexible thermal conductive adhesive (27).
8. The microgrid-based power control and management device as described in claim 7, characterized in that: The flexible permalloy sheet (22), the elastic thermal pad (23), and the matrix ferrite patch (24) are all bonded with a frame flexible thermal adhesive (26).
9. The microgrid-based power control and management device as described in claim 8, characterized in that: A composite sandwich frame (25) is provided around the inner galvanized steel plate shielding layer (21), the flexible permalloy sheet (22), the elastic thermal conductive pad (23), and the matrix ferrite patch (24).
10. The microgrid-based power control and management device as described in claim 9, characterized in that: The inner wall of the composite sandwich frame (25) is bonded to the outer periphery of the inner galvanized steel plate shielding layer (21), flexible permalloy sheet (22), elastic thermal pad (23) and matrix ferrite patch (24) by annular conductive damping adhesive. The microgrid coordinator (1) has an integrally provided guide rail (3) inside its housing. The composite sandwich frame (25) has a groove (28) inside it, and the groove (28) fits into the guide rail (3).