Debugging device for active filters

Abstract

The utility model discloses power electronics equipment's test and debugging technical field relates to a kind of debugging device for active filter;Including cabinet;The cabinet inside is provided with voltage regulator, control module and power module;The control module is located above voltage regulator;The cabinet side is provided with aviation plug;The power module and voltage regulator are electrically connected;The voltage regulator and aviation plug are electrically connected;The aviation plug is electrically connected with active filter and control module respectively;The active filter and mutual inductor are electrically connected;The mutual inductor and control module are electrically connected;The voltage regulator and intelligent electric meter are electrically connected;The intelligent electric meter and control module and electrically connected.The utility model can realize the quick power-on test of active filter, parameter adjustment and performance verification.

Description

Technical Field

[0001] This utility model relates to the field of testing and debugging technology for power electronic equipment, specifically a debugging device for active filters. Background Technology

[0002] An active power filter (APF) is a widely used power electronic device in power systems, designed to improve power quality, reduce harmonic pollution, and optimize grid performance. With increasing demands for power quality in modern power systems, especially strict harmonic control, APFs have found widespread application in industrial, commercial, and residential power systems. By monitoring and dynamically adjusting current or voltage waveforms in real time, they eliminate harmonics generated in the grid, thereby improving energy efficiency, reducing damage to electrical equipment, and enhancing power system stability.

[0003] Accurate performance evaluation is crucial during the production, commissioning, and maintenance of active power filters. Traditional commissioning methods largely rely on manual operation, which is not only inefficient but also susceptible to human error, potentially leading to inaccurate results or repeated modifications during the commissioning process. Furthermore, existing commissioning equipment has limited functionality and cannot meet complex commissioning needs, especially when facing varying load conditions, harmonic frequencies, and dynamic system changes. Traditional equipment lacks adaptability and struggles to achieve rapid and efficient commissioning. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems of limited functionality and low efficiency of existing debugging equipment, and to provide a debugging device for active filters that enables rapid power-on testing, parameter adjustment and performance verification of active filters.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The purpose of this utility model is to provide a debugging device for an active power filter, including a cabinet; the cabinet is equipped with a voltage regulator, a control module, and a power module; the control module is located above the voltage regulator; an aviation connector is provided on the side of the cabinet; the power module and the voltage regulator are electrically connected; the voltage regulator and the aviation connector are electrically connected; the aviation connector is electrically connected to the active power filter and the control module respectively; the active power filter and a current transformer are electrically connected; the current transformer and the control module are electrically connected; the voltage regulator and a smart meter are electrically connected; the smart meter and the control module are electrically connected.

[0007] Preferably, the control module is electrically connected to a relay via an I / O module; the relay is electrically connected to a contactor; one end of the contactor is electrically connected to a voltage regulator, and the other end is electrically connected to an aviation plug.

[0008] Preferably, the control module includes a monitoring screen and a touch-sensitive control screen mounted on the outer surface of the cabinet; the current transformer and the smart meter are both electrically connected to the monitoring screen; and the I / O module is electrically connected to the touch-sensitive control screen.

[0009] Preferably, a first 485 module is provided between the IO module and the relay.

[0010] Preferably, the current transformer is electrically connected to the control module via a second 485 module; the smart meter is electrically connected to the control module via a third 485 module.

[0011] Preferably, the power module is electrically connected via a resistor box and a voltage regulator.

[0012] Preferably, a first circuit breaker is provided between the voltage regulator and the aviation plug.

[0013] Preferably, the side of the cabinet is provided with an input voltmeter, an input indicator light, an output voltmeter, an output indicator light, a stop button, a start button, a boost button, and a deboost button, all electrically connected to the voltage regulator.

[0014] Preferably, a three-color indicator light is provided on the side of the cabinet; the three-color indicator light is electrically connected to the smart meter.

[0015] Preferably, the aviation plug is electrically connected to a 24V-300W power supply and an active filter; the aviation plug is electrically connected to a control module via a 24V-200W power supply.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model device precisely adjusts the input voltage to simulate operating conditions using a voltage regulator, while a current transformer collects harmonic parameters in real time and feeds them back to the control module. A smart meter synchronously monitors the voltage regulator parameters, significantly improving debugging efficiency and data reliability. The control module can display the acquired test data, facilitating real-time monitoring by operators. Through a highly integrated design, the voltage regulator, control module, and power module are integrated into a cabinet, and aviation plugs enable quick connection. This integrated structure simplifies wiring complexity at the debugging site and improves operational efficiency. The overall design of this utility model balances debugging convenience, comprehensive functionality, and system stability, significantly improving the debugging quality and efficiency of active power filters. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a debugging device for an active filter according to the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the internal structure on the back;

[0021] Figure 3 for Figure 1 Front view of the internal structure;

[0022] The components include: 1. Cabinet; 2. Voltage regulator; 3. Resistor box; 4. Monitoring screen; 5. Touchscreen control panel; 6. Input voltmeter; 7. Output voltmeter; 8. First circuit breaker; 9. Three-color indicator light; 10. Power indicator light; 11. Screen power switch; 12. Voltage regulator stop button; 13. Voltage regulator start button; 14. Voltage regulator boost button; 15. Voltage regulator deboost button; 16. Relay; 17. I / O module; 18. Current transformer sampling line; 19. Active filter connection line; 20. Smart meter; 21. First power switch; 22. Second power switch; 23. Terminal block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings:

[0030] This utility model provides a debugging device for active filters, such as... Figures 1-3As shown, the system includes a cabinet 1; the cabinet 1 houses a voltage regulator 2, a control module, and a power module; the control module is located above the voltage regulator 2; an aviation connector is located on the side of the cabinet 1; the power module and the voltage regulator 2 are electrically connected; the voltage regulator 2 and the aviation connector are electrically connected; the aviation connector is electrically connected to an active filter via an active filter connection line 19; the aviation connector is electrically connected to the control module; the active filter is electrically connected to a current transformer; the current transformer is electrically connected to the control module via a current transformer sampling line 18; the voltage regulator 2 is electrically connected to a smart meter 20; and the smart meter 20 is electrically connected to the control module. The active filter debugging device of this utility model integrates the voltage regulator 2, control module, and power supply module within the cabinet 1 through a highly integrated design, and uses aviation plugs for quick connection. Its integrated structure simplifies the wiring complexity at the debugging site and improves operational efficiency. This utility model device uses the voltage regulator 2 to precisely adjust the input voltage to simulate the working condition, the current transformer to collect harmonic parameters in real time and feed them back to the control module, and the smart meter 20 to synchronously monitor the parameters of the voltage regulator 2, significantly improving debugging efficiency and data reliability. The control module can display the acquired test data, making it convenient for operators to monitor the real-time data. At the same time, the use of aviation plugs enhances the reliability and safety of the connection. The overall design takes into account the convenience of debugging, comprehensive functions, and system stability, significantly improving the debugging quality and efficiency of the active filter.

[0031] The voltage regulator 2 is provided with a terminal block 23 at its output end; the smart meter 20 collects the output voltage on the terminal block 23 and feeds it back to the control module.

[0032] The control module is electrically connected to the relay 16 via the I / O module 17; the relay 16 is electrically connected to the contactor; one end of the contactor is electrically connected to the voltage regulator 2, and the other end is electrically connected to the aviation connector. A first circuit breaker 8 is installed between the voltage regulator 2 and the aviation connector. On one hand, the operator can manually disconnect the first circuit breaker 8 to achieve an emergency power cut; on the other hand, the control module can output a digital signal through the I / O module 17 to drive the relay 16, thereby causing the relay 16 to engage and disengage with the contactor to achieve rapid switching of the main circuit.

[0033] The control module includes a monitoring screen 4 and a touch-sensitive control panel 5 mounted on the outer surface of the cabinet 1; the current transformer and the smart meter 20 are both electrically connected to the monitoring screen 4; the IO module 17 is electrically connected to the touch-sensitive control panel 5. The monitoring screen 4 directly displays the active filter operating data collected by the current transformer and the real-time monitoring data of the voltage regulator 2 collected by the smart meter 20, facilitating real-time observation of the system's operating status; the touch-sensitive control panel 5 provides control over the main power circuit. This device achieves a balance between data visualization and ease of operation, optimizes the human-machine interface through functional partitioning, significantly improves the accuracy and efficiency of active filter debugging, and lowers the professional threshold for operators.

[0034] The cabinet 1 is also equipped with a power indicator light 10 and a screen power switch 11, which are used to indicate whether the power module is powered on and to turn the monitoring screen 4 and the touch control screen 5 on or off, respectively.

[0035] A first 485 module is provided between the IO module 17 and the relay 16; the current transformer is electrically connected to the control module through a second 485 module; and the smart meter 20 is electrically connected to the control module through a third 485 module. By configuring multiple independent 485 communication modules, a highly reliable distributed communication network is constructed, enabling the system to possess excellent anti-interference capabilities and data transmission stability.

[0036] The power module is electrically connected to the voltage regulator 2 via a resistor box 3, and a second circuit breaker is installed between the resistor box 3 and the aviation plug. The introduction of the resistor box 3 can effectively limit the initial inrush current of the power module to the voltage regulator 2, avoiding damage to sensitive components from the surge at the moment of power-on; the second circuit breaker provides reliable electrical isolation protection, and can quickly cut off the power supply in case of overcurrent or abnormal debugging, ensuring the safety of equipment and personnel.

[0037] The side of the cabinet 1 is equipped with an input voltmeter 6, an input indicator light, an output voltmeter 7, an output indicator light, a regulator stop button 12, a regulator start button 13, a regulator boost button 14, and a regulator buck button 15, all electrically connected to the voltage regulator 2. By integrating the input / output voltmeters, indicator lights, and operation buttons on the side of the cabinet 1, the intuitiveness and ease of operation during the commissioning process are significantly improved: the input / output voltmeters can display the operating parameters of the voltage regulator 2 in real time, and the status feedback from the input / output indicator lights allows commissioning personnel to quickly grasp the system's operating status; the start and stop buttons enable one-button power control, while the boost and buck buttons provide fine adjustment of the output voltage. All commissioning operations can be completed without relying on external equipment, which not only lowers the operational threshold but also significantly shortens the commissioning time. Furthermore, the visual status monitoring effectively prevents the risk of misoperation, ensuring the safety and reliability of the commissioning process.

[0038] A three-color indicator light 9 is installed on the side of the cabinet 1. The three-color indicator light 9 is electrically connected to the current transformer and is used to indicate the test status of the debugging device, improving the operator's ability to monitor the debugging process in real time. Specifically, a green indicator light indicates that the device is in standby mode and no device under test is connected, a yellow indicator light indicates that the device is undergoing dynamic debugging, and a red indicator light immediately warns of a device malfunction.

[0039] This utility model's voltage regulator 2 steps down the 220V AC mains power to 24V-300W and 24V-200W. The aviation connector is electrically connected to the active power filter via the 24V-300W power supply; the aviation connector is electrically connected to the control module via the 24V-200W power supply. Both are started and stopped via a first power switch 21 and a second power switch 22, respectively. This device, through its dual-path independent voltage regulator design, achieves precise power supply and electrical isolation between the active power filter and the control module.

[0040] The working process of this utility model device is as follows:

[0041] Equipment installation and connection: Connect the active filter to the voltage regulator 2 of the device via an aviation plug; connect the active filter to the signal port of the sampling device to collect parameters such as voltage and current.

[0042] Power-on test: Start the device and adjust the input voltage to the set value through the voltage regulator 2; observe the voltage and current data displayed on the monitoring screen 4 to ensure that the active filter starts normally.

[0043] Parameter debugging and performance testing: The operating parameters of the active filter, such as harmonic compensation level and response speed, are set through the touch screen 5; the smart meter 20 collects power quality data in real time and displays the test results through the monitoring screen 4.

[0044] Automated control and data recording: The control module automatically switches voltage conditions and test parameters according to the preset test procedure; the test data is displayed on the touch screen 5 through the 485 module to realize data recording and analysis.

[0045] This invention significantly shortens the debugging time of active filters through an automated control system and integrated testing equipment; the smart meter 20 and voltage regulator 2 ensure high-precision data acquisition and voltage stability during the testing process; and the intuitive monitoring and control screen design reduces the difficulty of operation and improves debugging efficiency.

[0046] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A debugging device for an active filter, characterized in that, The system includes a cabinet (1); the cabinet (1) is equipped with a voltage regulator (2), a control module and a power module; the control module is located above the voltage regulator (2); an aviation plug is provided on the side of the cabinet (1); the power module and the voltage regulator (2) are electrically connected; the voltage regulator (2) and the aviation plug are electrically connected; the aviation plug is electrically connected to an active filter and the control module respectively; the active filter and the current transformer are electrically connected; the current transformer and the control module are electrically connected; the voltage regulator (2) and the smart meter (20) are electrically connected; the smart meter (20) and the control module are electrically connected.

2. The debugging device for an active filter according to claim 1, characterized in that, The control module is electrically connected to the relay (16) via the IO module (17); the relay (16) is electrically connected to the contactor; one end of the contactor is electrically connected to the voltage regulator (2), and the other end is electrically connected to the aviation plug.

3. The debugging device for an active filter according to claim 2, characterized in that, The control module includes a monitoring screen (4) and a touch control screen (5) installed on the outer surface of the cabinet (1); the current transformer and the smart meter (20) are both electrically connected to the monitoring screen (4); the IO module (17) and the touch control screen (5) are electrically connected.

4. The debugging device for an active filter according to claim 3, characterized in that, A first 485 module is provided between the IO module (17) and the relay (16).

5. The debugging device for an active filter according to claim 1, characterized in that, The current transformer is electrically connected to the control module via the second 485 module; the smart meter (20) is electrically connected to the control module via the third 485 module.

6. The debugging device for an active filter according to claim 1, characterized in that, The power module is electrically connected through a resistor box (3) and a voltage regulator (2).

7. The debugging device for an active filter according to claim 6, characterized in that, A first circuit breaker (8) is provided between the voltage regulator (2) and the aviation plug.

8. The debugging device for an active filter according to claim 1, characterized in that, The cabinet (1) is equipped with an input voltmeter (6), an input indicator light, an output voltmeter (7), an output indicator light, a stop button, a start button, a boost button, and a deboost button on the side, all of which are electrically connected to the voltage regulator (2).

9. The debugging device for an active filter according to claim 1, characterized in that, The cabinet (1) is provided with a three-color indicator light (9) on its side; the three-color indicator light (9) is electrically connected to the current transformer.

10. The debugging device for an active filter according to claim 1, characterized in that, The aviation connector is electrically connected to a 24V-300W power supply and an active filter; the aviation connector is electrically connected to a control module via a 24V-200W power supply.

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