Test device for low-voltage trigger test of multiple power modules of SVG device

Abstract

The utility model relates to a kind of test device for SVG equipment multiple power modules synchronous low-voltage trigger test, it includes: power input module, for the test device for SVG equipment multiple power modules synchronous low-voltage trigger test input electric energy;Voltage conversion module, voltage is changed into the voltage required by the SVG equipment multiple power modules to be measured;Current-limiting module, for the circuit connected limit peak current, protect equipment;Monitoring module, for the circuit connected real-time monitoring voltage state, including waveform;Connection and load module, for SVG equipment multiple power modules to be measured are connected to circuit, wherein, power input module, voltage conversion module, current-limiting module, connection and load module are connected in series, monitoring module is connected in parallel on connection and load module.According to the test device for SVG equipment multiple power modules synchronous low-voltage trigger test of the utility model, multiple module synchronous trigger test can be realized, and efficiency is high, waveform real-time monitoring, safety protection.

Description

Technical Field

[0001] This utility model relates to the field of power electronic equipment testing technology, and more specifically, to a test device for synchronous low-voltage triggering testing of multiple power modules of SVG equipment. Background Technology

[0002] During the maintenance of the SVG (Static Var Generator) reactive power compensation device, a simulated low-voltage trigger signal test needs to be performed on a single unit of 117 power modules (such as IGBT and thyristor modules) to verify its trigger response characteristics.

[0003] Currently, there are problems with conducting simulated low-voltage trigger signal tests: 1. Low testing efficiency: Most tests use single modules one by one, lacking multi-module parallel testing design, which is time-consuming; 2. Insufficient safety: The equipment is built with scattered components and lacks integrated protection circuits, such as overcurrent and short-circuit protection, which can easily damage the equipment; 3. Lack of accuracy: The trigger voltage waveform is not monitored synchronously, making it impossible to analyze the impact of voltage distortion and amplitude stability on trigger performance.

[0004] Therefore, there is an urgent need for an integrated, safe, reliable, and multi-module parallel testing low-voltage triggering test device to solve the above problems. Summary of the Invention

[0005] The technical problem this invention aims to solve is the low testing efficiency, insufficient safety, and lack of security issues when multiple power modules of an SVG device are synchronously tested under low voltage triggering.

[0006] To address the aforementioned technical problems, this utility model provides a test device for synchronous low-voltage triggering testing of multiple power modules of an SVG device. The device includes: a power input module for inputting electrical energy into the test device; a voltage conversion module for converting the voltage to the voltage required by the multiple power modules of the SVG device under test; a current limiting module for limiting peak current in the connected circuit to protect the device; a monitoring module for real-time monitoring of the voltage status, including waveform, in the connected circuit; and a connection and load module for connecting the multiple power modules of the SVG device under test to the circuit. The power input module, voltage conversion module, current limiting module, and connection and load module are connected in series, and the monitoring module is connected in parallel to the connection and load module.

[0007] According to an embodiment of this utility model, the power input module may include: a plug for connecting to an external power source; and a circuit breaker for controlling the on / off state of the circuit, having overcurrent and short-circuit protection functions.

[0008] According to an embodiment of this utility model, the external power supply can be AC220V alternating current.

[0009] According to an embodiment of this utility model, the voltage conversion module can be a transformer, used to boost AC220V to AC1000V to provide trigger power for the power module.

[0010] According to an embodiment of this utility model, the current limiting module can be a current limiting resistor.

[0011] According to an embodiment of this utility model, the resistance of the current-limiting resistor can be 60Ω and the power can be 500W.

[0012] According to an embodiment of this utility model, the monitoring module can be an oscilloscope, and the real-time monitoring of the state parameters of the trigger voltage can include waveform amplitude, frequency, and distortion rate.

[0013] According to an embodiment of this utility model, the connection and load module may include: wires for meeting the requirements of high current transmission and ensuring circuit stability; test clips for quickly connecting the power module and supporting flexible replacement of the test object; and power modules for multiple SVG devices under test.

[0014] According to an embodiment of this utility model, the power module of the SVG device to be tested can be 1-5 units.

[0015] According to an embodiment of this utility model, the wire specification can be 2.5 square millimeters.

[0016] Compared with the prior art, the technical solution provided by the embodiments of this utility model can achieve at least the following beneficial effects:

[0017] The test device for synchronous low-voltage triggering test of multiple power modules of SVG equipment according to this utility model can realize synchronous triggering test of multiple modules, safety protection, and real-time waveform monitoring, thereby improving test efficiency and reliability. It is suitable for efficient and safe verification of the triggering performance of power modules.

[0018] The test device for synchronous low-voltage triggering testing of multiple power modules of SVG equipment according to this utility model uses a circuit breaker for overcurrent protection and a current-limiting resistor for current-limiting protection, constructing a dual protection to avoid damage to the modules or equipment due to overvoltage or overcurrent, ensuring safety first; adopting a multi-module parallel design, five modules can be tested in one test, significantly shortening the test cycle and improving efficiency; this utility model uses an oscilloscope to acquire waveforms in real time, providing data support for performance analysis such as trigger threshold, response time, and anti-interference capability, ensuring accuracy.

[0019] The test device for synchronous low-voltage triggering test of multiple power modules of SVG equipment according to this utility model integrates power supply, protection, conversion, monitoring and connection components, solves the problem of chaotic scattered testing, and realizes integrated design; real-time waveform acquisition and quantitative analysis of triggering performance, rather than just qualitative judgment, realizes full-process monitoring.

[0020] The experimental device for synchronous low-voltage triggering test of multiple power modules of SVG equipment according to this utility model realizes efficient, safe and accurate verification of low-voltage triggering test of multiple power modules, and provides reliable technical support for the operation and maintenance of reactive power compensation device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0022] Figure 1 This is an electrical structure diagram showing the test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment according to the present invention. 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, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0025] Figure 1 This is an electrical structure diagram showing the test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment according to the present invention.

[0026] like Figure 1 As shown, the test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment includes: power input module, voltage conversion module, current limiting module, monitoring module, and connection and load module.

[0027] The power input module is used to input electrical energy into the test device for synchronous low-voltage triggering test of multiple power modules of SVG equipment; the voltage conversion module converts the voltage to the voltage required by the multiple power modules of the SVG equipment under test; the current limiting module is used to limit the peak current of the connected circuit and protect the equipment; the monitoring module is used to monitor the voltage status of the connected circuit in real time, including the voltage waveform; and the connection and load module is used to connect the multiple power modules of the SVG equipment under test to the circuit.

[0028] The power input module, voltage conversion module, current limiting module, and connection and load module are connected in series, while the monitoring module is connected in parallel to the connection and load module.

[0029] The test device for synchronous low-voltage triggering test of multiple power modules of SVG equipment according to this utility model can realize synchronous triggering test of multiple modules, safety protection, and real-time waveform monitoring, thereby improving test efficiency and reliability. It is suitable for efficient and safe verification of the triggering performance of power modules.

[0030] According to one or more embodiments of the present invention, the power input module includes: a plug 1 and a circuit breaker 2.

[0031] Plug 1 is used to connect to an external power source; circuit breaker 2 is used to control the on / off state of the circuit and has overcurrent and short-circuit protection functions.

[0032] According to one or more embodiments of this utility model, the external power supply is AC220V alternating current.

[0033] According to one or more embodiments of the present invention, the voltage conversion module is a transformer 3, which is used to boost AC220V to AC1000V to provide trigger power for the power module.

[0034] According to one or more embodiments of this utility model, the current limiting module is a current limiting resistor 4. The current limiting resistor 4 has a resistance of 60Ω and a power of 500W.

[0035] According to one or more embodiments of this utility model, the monitoring module is an oscilloscope 7, which monitors the status parameters of the trigger voltage in real time, including waveform amplitude, frequency, and distortion rate.

[0036] According to one or more embodiments of the present invention, the connection and load module includes: a wire 6, a test clip 5, and a power module.

[0037] Wire 6 is used to meet the requirements of high current transmission and ensure the stability of the circuit;

[0038] Test clip 5 is used for quick connection of power modules, supporting flexible replacement of test objects;

[0039] The power module is for multiple SVG devices under test.

[0040] According to one or more embodiments of this utility model, the power module of the SVG device to be tested is 1-5 units.

[0041] According to one or more embodiments of the present invention, the conductor 6 is 2.5 square millimeters.

[0042] According to the test device of this utility model for synchronous low-voltage triggering test of multiple power modules of SVG equipment, overcurrent protection is provided by circuit breaker 2 and current limiting resistor 4, thus constructing dual protection to avoid damage to modules or equipment due to overvoltage or overcurrent, ensuring safety first; adopting a multi-module parallel design, five modules can be tested in one test, which greatly shortens the test cycle and improves efficiency; this utility model uses oscilloscope 7 to collect waveforms in real time, providing data support for performance analysis such as trigger threshold, response time, and anti-interference capability, ensuring accuracy.

[0043] The experimental device for synchronous low-voltage triggering test of multiple power modules of SVG equipment according to this utility model realizes efficient, safe and accurate verification of low-voltage triggering test of multiple power modules, and provides reliable technical support for the operation and maintenance of reactive power compensation device.

[0044] The working principle of this utility model is as follows:

[0045] During the power-on phase, plug 1 is connected to AC220V, circuit breaker 2 is closed, and transformer 3 steps up the voltage to AC1000V;

[0046] During the testing phase, AC1000V was applied to the trigger terminal of the power module through the current-limiting resistor 4 and the test clip 5, and the voltage waveform was monitored synchronously by the oscilloscope 7.

[0047] The protection mechanism ensures that if the circuit current exceeds the rated value of circuit breaker 2 (or resistor 4 is overloaded), circuit breaker 2 will automatically disconnect and cut off the power supply; the current-limiting resistor 4 will suppress instantaneous large currents to prevent damage to the module.

[0048] The test device for synchronous low-voltage triggering test of multiple power modules of SVG equipment according to this utility model integrates power supply, protection, conversion, monitoring and connection components, solves the problem of chaotic scattered testing, and realizes integrated design; real-time waveform acquisition and quantitative analysis of triggering performance, rather than just qualitative judgment, realizes full-process monitoring.

[0049] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The scope of protection of the present utility model is determined by the appended claims.

Claims

1. A test apparatus for synchronous low-voltage triggering testing of multiple power modules in an SVG device, characterized in that, include: The power input module is used to input electrical energy into the test apparatus for synchronous low-voltage triggering testing of multiple power modules of SVG equipment; The voltage conversion module converts the voltage into the voltage required by multiple power modules of the SVG device under test. Current limiting modules are used to limit peak current in connected circuits to protect equipment. The monitoring module is used to monitor the voltage status, including waveforms, of the connected circuit in real time. The connection and load module is used to connect multiple power modules of the SVG device under test to the circuit. The power input module, voltage conversion module, current limiting module, and connection and load module are connected in series, and the monitoring module is connected in parallel to the connection and load module.

2. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 1, characterized in that, The power input module includes: A plug, used to connect to an external power source; A circuit breaker is used to control the opening and closing of a circuit and has overcurrent and short-circuit protection functions.

3. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 2, characterized in that, The external power supply is AC220V.

4. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 1, characterized in that, The voltage conversion module is a transformer used to boost AC220V to AC1000V to provide trigger power for the power module.

5. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 1, characterized in that, The current limiting module is a current limiting resistor.

6. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 5, characterized in that, The current-limiting resistor has a resistance of 60Ω and a power of 500W.

7. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 1, characterized in that, The monitoring module is an oscilloscope, which monitors the status parameters of the trigger voltage in real time, including waveform amplitude, frequency, and distortion rate.

8. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 1, characterized in that, The connection and load module includes: Conductors are used to meet the requirements of high current transmission and ensure the stability of the circuit. Test clips are used for quick connection of power modules and support flexible replacement of test objects; The power module is for multiple SVG devices under test.

9. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 8, characterized in that, The power modules of the SVG devices to be tested are 1-5 units.

10. The test apparatus for synchronous low-voltage triggering test of multiple power modules of SVG equipment as described in claim 8, characterized in that, The conductor is 2.5 square millimeters.

Images