Hydrogen production power supply twin trawling test platform

Abstract

The utility model discloses a hydrogen production power supply twin trawling test platform, which comprises a power grid end, a first circuit breaker Q1, a second circuit breaker Q2, a first transformer T1, a second transformer T2, a tested machine A1 and a test accompanying machine A2, the power grid end, the first transformer T1 and the first circuit breaker Q1 are sequentially connected in series; the output end of the second breaker Q2 is connected with the input end of the second transformer T2, the output end of the second transformer T2 is connected with the input end of the accompanying testing machine A2, the output end of the accompanying testing machine A2 is connected with the output end of the tested machine A1, and the input end of the tested machine A1 is connected with the input end of the second breaker Q2 to form a power circulation loop. The power circulation loop is connected with the output end of the circuit breaker Q1; the hydrogen production power supply twin trawling test platform can improve the efficiency of a test system and reduce the risk of damaging devices and equipment, and the test platform is simple to operate and easy to implement.

Description

Technical Field

[0001] The present application relates to the field of power electronics technology, and in particular to a hydrogen production power supply pair-drag test platform. Background Art

[0002] With the continuous development and progress of power electronics application technology and new energy industry, hydrogen energy as an efficient and clean energy has been widely studied and paid attention to. The power supply equipped with the electrolyzer has also been valued by the power electronics industry. Its various index requirements have a great impact on the electrolyzer, and the test of the power supply is the last step of R&D design and is also a crucial step.

[0003] The prior art test platform for testing converters is as follows: Figure 1 , which consists of a power grid, AC Source, circuit breaker, transformer, and the machine under test and the accompanying machine to form a power cycle. The advantage of this mode of dragging platform is that it can simulate various AC power supply conditions, harmonic waveforms and accurate power measurement, but the disadvantage is that if the AC Source ages and fails, it is easy to cause equipment damage, etc., which poses a great safety hazard.

[0004] Compared with the existing towing test platform, the towing test platform for hydrogen production power proposed in this patent does not use AC Source equipment, which can avoid the towing test platform being used for testing when the AC Source is aging or other failures. The platform is simpler, more reliable and easier to implement. Utility Model Content

[0005] The technical problem to be solved by the utility model is to propose a hydrogen production power supply pair-drag test platform, which can improve the efficiency of the test system, reduce the risk of damaging components and equipment, and the test platform is simple to operate and easy to implement.

[0006] In order to solve the above technical problems, the utility model provides a hydrogen production power supply pair test platform, including a power grid end, a first circuit breaker Q1, a second circuit breaker Q2, a first transformer T1, a second transformer T2, a machine under test A1 and a companion machine under test A2; the power grid end, the first transformer T1 and the first circuit breaker Q1 are connected in series in sequence; the output end of the second circuit breaker Q2 is connected to the input end of the second transformer T2, the output end of the second transformer T2 is connected to the input end of the companion machine under test A2, the output end of the companion machine under test A2 is connected to the output end of the machine under test A1, the input end of the machine under test A1 is connected to the input end of the second circuit breaker Q2 to form a power circulation loop, and the power circulation loop is connected to the output end of the circuit breaker Q1.

[0007] Preferably, when the first circuit breaker Q1 and the second circuit breaker Q2 are closed, the machine under test A1 rectifies the three-phase AC power into DC power and then outputs it, and the accompanying machine under test A2 inverts the DC power into AC power and then outputs it.

[0008] Preferably, the power lost by the first transformer T1, the second transformer T2, the machine under test A1 and the accompanying machine under test A2 is provided by the power grid.

[0009] Preferably, the machine under test A1 includes a switching tube, and the accompanying machine under test A2 includes a switching tube. The input of the machine under test A1 is three-phase AC power, which is rectified by the switching tube and output as DC power; the input of the accompanying machine under test A2 is DC power, which is inverted by the switching tube and output as three-phase AC power, forming a power circulation loop.

[0010] Preferably, the switch tube is a MOS tube or an IGBT.

[0011] After adopting the above platform, the hydrogen-producing power supply pair-drag test platform includes a power grid end, a first circuit breaker Q1, a second circuit breaker Q2, a first transformer T1, a second transformer T2, a machine under test A1 and a companion machine under test A2; the power grid end, the first transformer T1 and the first circuit breaker Q1 are connected in series in sequence; the output end of the second circuit breaker Q2 is connected to the input end of the second transformer T2, the output end of the second transformer T2 is connected to the input end of the companion machine under test A2, the output end of the companion machine under test A2 is connected to the output end of the machine under test A1, the input end of the machine under test A1 is connected to the input end of the second circuit breaker Q2 to form a power circulation loop, and the power circulation loop is connected to the output end of the circuit breaker Q1; the hydrogen-producing power supply pair-drag test platform can improve the efficiency of the test system, reduce the risk of damaging components and equipment, and the test platform is simple, reliable and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of an existing converter towing test platform;

[0013] Figure 2 This is the overall circuit diagram of the hydrogen production power supply pair test platform of the utility model.

[0014] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0016] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0017] Embodiment 1

[0018] See also Figure 2 , Figure 2 This is the overall circuit diagram of the hydrogen production power supply pair test platform of the utility model.

[0019] The present embodiment discloses a hydrogen production power supply pair test platform, including a power grid end, a first circuit breaker Q1, a second circuit breaker Q2, a first transformer T1, a second transformer T2, a machine under test A1 and a companion machine under test A2; the power grid end, the first transformer T1 and the first circuit breaker Q1 are connected in series in sequence; the output end of the second circuit breaker Q2 is connected to the input end of the second transformer T2, the output end of the second transformer T2 is connected to the input end of the companion machine under test A2, the output end of the companion machine under test A2 is connected to the output end of the machine under test A1, the input end of the machine under test A1 is connected to the input end of the second circuit breaker Q2 to form a power circulation loop, and the power circulation loop is connected to the output end of the circuit breaker Q1.

[0020] Embodiment 2

[0021] This embodiment is based on the first embodiment. In this embodiment, when the first circuit breaker Q1 and the second circuit breaker Q2 are closed, the tested machine A1 rectifies the three-phase AC power into DC power and outputs it, and the accompanying tested machine A2 inverts the DC power into AC power and outputs it.

[0022] In this embodiment, the power lost by the first transformer T1, the second transformer T2, the machine under test A1 and the accompanying machine under test A2 is provided by the power grid.

[0023] When the circuit breakers Q1 and Q2 are closed in sequence, the power grid starts to supply power to the subsequent equipment. The transformer T1 converts the high voltage of the power grid into the incoming line voltage of A1 after a certain transformation ratio and then outputs it. After the three-phase AC power is rectified by the switch tube, it is converted into DC power and output to the companion test machine A2. After the DC power is inverted by the switch tube, the companion test machine A2 converts it into three-phase AC power and outputs it to the input end of the transformer T2. The output end of the transformer T2 is connected to the machine under test A1, which mainly plays an electrical isolation role, thereby forming a power cycle; the power loss of the first transformer T1, the second transformer T2, the machine under test A1, and the companion test machine A2 is provided by the previous power grid. The biggest difference from the existing solution is that the AC Source device is not used, which can avoid the use of the drag test platform for testing when the AC Source fails due to aging. The platform construction is simpler, more reliable, and easy to implement.

[0024] Embodiment 3

[0025] This embodiment is based on the first embodiment. In this embodiment, the machine under test A1 includes a switch tube, and the companion machine under test A2 includes a switch tube. The machine under test A1 inputs three-phase alternating current, which is rectified by the switch tube and outputted as direct current; the companion machine under test A2 inputs direct current, which is inverted by the switch tube and outputted as three-phase alternating current, forming a power circulation loop.

[0026] In this embodiment, the switch tube is a MOS tube or an IGBT.

[0027] The hydrogen production power supply drag test platform can improve the efficiency of the test system and reduce the risk of damaging components and equipment. The test platform is simple to operate and easy to implement.

[0028] The preferred embodiments of the present application are described above with reference to the accompanying drawings, but the scope of the present application is not limited thereby. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present application shall be within the scope of the present application.

Claims

1. A hydrogen production power supply pair test platform, characterized in that: The invention comprises a power grid end, a first circuit breaker Q1, a second circuit breaker Q2, a first transformer T1, a second transformer T2, a machine under test A1 and a companion machine under test A2; the power grid end, the first transformer T1 and the first circuit breaker Q1 are connected in series in sequence; the output end of the second circuit breaker Q2 is connected to the input end of the second transformer T2, the output end of the second transformer T2 is connected to the input end of the companion machine under test A2, the output end of the companion machine under test A2 is connected to the output end of the machine under test A1, the input end of the machine under test A1 is connected to the input end of the second circuit breaker Q2 to form a power circulation loop, and the power circulation loop is connected to the output end of the circuit breaker Q1.

2. The hydrogen production power supply pair test platform according to claim 1 is characterized in that: When the first circuit breaker Q1 and the second circuit breaker Q2 are closed, the tested machine A1 rectifies the three-phase AC power into DC power and then outputs it, and the accompanying tested machine A2 inverts the DC power into AC power and then outputs it.

3. The hydrogen production power supply pair test platform according to claim 1 is characterized in that: The power lost by the first transformer T1, the second transformer T2, the machine under test A1 and the accompanying machine under test A2 is provided by the power grid.

4. The hydrogen production power supply pair test platform according to claim 2 is characterized in that: The tested machine A1 includes a switch tube, and the accompanying tested machine A2 includes a switch tube. The tested machine A1 inputs three-phase AC power, which is rectified by the switch tube and outputs DC power; the accompanying tested machine A2 inputs DC power, which is inverted by the switch tube and outputs three-phase AC power, forming a power circulation loop.

5. The hydrogen production power supply pair test platform according to claim 4 is characterized in that: The switch tube is a MOS tube or an IGBT.

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