A power electronics experiment control board

Abstract

The utility model provides a kind of power electronic experiment control panel, comprising: substrate;Main control module is set on the substrate, for receiving control instruction and output corresponding control signal;Power conversion module is set on the substrate and is connected with the main control module, for realizing the transformation of electric energy according to the control signal;Drive module is set on the substrate, respectively with the main control module and power conversion module connection, for amplifying the control signal to drive the power conversion module work.The utility model can efficiently realize electric energy conversion and related functions, meet the experimental requirements.

Description

Technical Field

[0001] This utility model relates to the field of control board technology, and in particular to a power electronics experimental control board. Background Technology

[0002] With the rapid development of power electronics technology, its applications in numerous fields such as industrial production, energy conversion, and transportation are becoming increasingly widespread, making it one of the key technologies driving the efficient use of energy and intelligent development in modern society. Power electronics experiments, as a crucial step in mastering this technology, play an irreplaceable role in the teaching, research, and engineering practice of related majors.

[0003] In current power electronics experimental teaching and research, the experimental control board is one of the core pieces of equipment, and its performance directly affects the experimental results and research progress. However, existing power electronics experimental control boards generally have some shortcomings. Some control boards have low integration, and the functional modules are scattered, which not only occupies a lot of space but also leads to complex connections between modules. Signal transmission is easily interfered with, affecting the accuracy and stability of the experiment. Utility Model Content

[0004] To address the above problems, this utility model provides a power electronics experimental control board.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A power electronics experiment control board, comprising:

[0007] substrate;

[0008] The main control module, mounted on the base plate, is used to receive control commands and output corresponding control signals;

[0009] A power conversion module is mounted on the substrate and connected to the main control module, and is used to convert electrical energy according to the control signal;

[0010] A driving module is disposed on the substrate and connected to the main control module and the power conversion module respectively, and is used to amplify the control signal to drive the power conversion module to work.

[0011] A detection module is disposed on the substrate and connected to the power conversion module for detecting the voltage and current parameters of the power conversion module.

[0012] A protection module is disposed on the substrate and connected to the detection module and the main control module respectively, and is used to implement the protection function according to the parameters detected by the detection module.

[0013] Preferably, the main control module adopts an STM32 series microcontroller, which has a built-in ADC module and PWM generation module.

[0014] Preferably, the driving module uses an isolated driving chip.

[0015] Preferably, the isolated driver chip is an optocoupler isolated driver chip.

[0016] Preferably, the detection module includes a voltage sensor, a current sensor, and a signal conditioning circuit.

[0017] Preferably, the voltage sensor is a Hall voltage sensor; the current sensor is a Hall current sensor.

[0018] Preferably, the protection module implements overvoltage protection and overcurrent protection.

[0019] The beneficial effects of this utility model are as follows:

[0020] The modules work together efficiently, the main control module provides precise regulation, the power conversion module is low-power and reliable, and the drive, detection, and protection modules ensure safety and stability. It can efficiently realize power conversion and related functions, meet experimental requirements, improve the performance, safety, and anti-interference capabilities of the control board, and has the potential for functional expansion, making it highly applicable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a side view of the present invention.

[0023] Figure 3 This is a top view of the present invention;

[0024] In the diagram: 1. Baseboard, 2. Main control module, 3. Power conversion module, 4. Drive module, 5. Detection module, 6. Protection module. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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; 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 based on the specific circumstances.

[0028] Reference Figure 1-3 A power electronic experimental control board is disclosed. The substrate 1, serving as the basic carrier of the entire control board, is made of high-strength, high-temperature-resistant insulating material, providing a stable mounting platform for each functional module. Its surface undergoes special treatment, effectively preventing short circuits and enhancing heat dissipation to ensure a stable temperature environment during prolonged operation. Simultaneously, various interfaces and wiring are rationally arranged on the substrate 1, reducing interference during signal transmission and improving the overall performance of the control board.

[0029] The main control module 2, mounted on the base plate 1, is the core command center of the entire control board. It is responsible for receiving external control commands and outputting corresponding control signals accordingly. This module preferably uses an STM32 series microcontroller, which offers advantages such as high performance, low power consumption, and abundant peripheral resources. Its built-in ADC module enables high-precision analog signal acquisition, quickly and accurately obtaining voltage and current parameters from the detection module 5. The built-in PWM generation module can flexibly generate pulse width modulation signals of different frequencies and duty cycles, providing precise control signals for the power conversion module 3 and ensuring the efficiency and stability of power conversion.

[0030] The power conversion module 3 is also mounted on the substrate 1 and connected to the main control module 2. It is a key component for realizing power conversion. This module can convert the input electrical energy into the required form of electrical energy such as voltage, current, or frequency according to the control signals output by the main control module 2. Whether it is DC to AC (inverter), AC to DC (rectifier), DC to DC (chopper), or AC to AC (frequency converter), the power conversion module 3 can achieve low-loss and high-reliability power conversion thanks to its efficient power devices and optimized circuit design.

[0031] The drive module 4 is mounted on the substrate 1 and connected to both the main control module 2 and the power conversion module 3. Its main function is to amplify the control signal output from the main control module 2. Since the signal power output from the main control module 2 is relatively low, it cannot directly drive the high-power devices (such as IGBTs and MOSFETs) in the power conversion module 3. The drive module 4 amplifies the signal to provide sufficient drive power to the power conversion module 3, ensuring that the power devices can be turned on and off quickly and reliably. This module preferably uses an isolated drive chip, especially an optocoupler-isolated drive chip. The optocoupler-isolated drive chip uses optical signals for isolated transmission, effectively isolating the electrical connection between the main control module 2 and the power conversion module 3. This prevents high-voltage and high-current signals from the power conversion module 3 from interfering with or damaging the main control module 2, thus improving the safety and anti-interference capability of the control board.

[0032] The detection module 5 is mounted on the substrate 1 and connected to the power conversion module 3, and is used to detect the voltage and current parameters of the power conversion module 3 in real time. This module includes a voltage sensor, a current sensor, and a signal conditioning circuit. The voltage sensor is preferably a Hall voltage sensor, and the current sensor is preferably a Hall current sensor. Hall sensors have advantages such as fast response speed, high measurement accuracy, good linearity, and non-contact measurement, and can accurately detect the voltage and current signals at the input and output terminals of the power conversion module 3. The signal conditioning circuit filters, amplifies, and isolates the signals output by the sensors, converting them into standard signals that meet the input requirements of the main control module 2 and the protection module 6, ensuring the accuracy and reliability of the detected signals.

[0033] The protection module 6 is mounted on the substrate 1 and connected to both the detection module 5 and the main control module 2, serving as a crucial safeguard for the safe and stable operation of the control board. Based on the voltage and current parameters detected by the detection module 5, this module provides overvoltage and overcurrent protection. When the voltage of the power conversion module 3 exceeds a set threshold, the protection module 6 quickly sends a protection signal to the main control module 2. Upon receiving the signal, the main control module 2 immediately adjusts its output control signal, causing the power conversion module 3 to stop operating or enter a protection state, preventing damage to power devices and other circuit components due to overvoltage. Similarly, when the current exceeds a set threshold, the protection module 6 triggers the protection mechanism, and the main control module 2 takes timely measures to prevent overheating, burnout, and other faults caused by overcurrent. Furthermore, the protection module 6 can be expanded with other protection functions, such as over-temperature protection and undervoltage protection, to further enhance the safety and reliability of the control board.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power electronics experimental control board, characterized in that, include: base(1); The main control module (2) is disposed on the substrate (1) and is used to receive control commands and output corresponding control signals; A power conversion module (3) is disposed on the substrate (1) and connected to the main control module (2) for converting electrical energy according to the control signal; A drive module (4) is disposed on the substrate (1) and is connected to the main control module (2) and the power conversion module (3) respectively. It is used to amplify the control signal to drive the power conversion module (3) to work. A detection module (5) is disposed on the substrate (1) and connected to the power conversion module (3) for detecting the voltage and current parameters of the power conversion module (3); The protection module (6) is disposed on the substrate (1) and is connected to the detection module (5) and the main control module (2) respectively, and is used to implement the protection function according to the parameters detected by the detection module (5).

2. The power electronics experimental control board according to claim 1, characterized in that, The main control module (2) adopts an STM32 series microcontroller, which has a built-in ADC module and PWM generation module.

3. The power electronics experimental control board according to claim 2, characterized in that, The driving module (4) uses an isolated driving chip.

4. The power electronics experimental control board according to claim 3, characterized in that, The isolated driver chip is an optocoupler isolated driver chip.

5. The power electronics experimental control board according to claim 1, characterized in that, The detection module (5) includes a voltage sensor, a current sensor, and a signal conditioning circuit.

6. The power electronics experimental control board according to claim 5, characterized in that, The voltage sensor is a Hall voltage sensor; the current sensor is a Hall current sensor.

7. The power electronics experimental control board according to claim 1, characterized in that, The protection module (6) implements overvoltage protection and overcurrent protection.

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