Uninterruptible power self-switching system for redundant power supply of AEM water electrolysis hydrogen production equipment
Through the combination of ATS dual power supply automatic conversion switch and DC redundant module, the power outage problem of AEM water electrolytic hydrogen production equipment during the switching of mains and UPS power supply is solved, and the continuous power operation of the equipment is achieved, and the power supply stability and safety are improved.
Patent Information
- Application Number
- CN202422004004.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The existing AEM water electrolysis hydrogen production equipment has a short power outage during the switching between mains and UPS power sources, resulting in the PLC control system being powered down, posing a safety hazard.
The ATS dual power supply automatic conversion switch and DC redundant module are used to realize the rapid switching of AC and DC power supplies, ensure continuous power supply of load equipment, and provide power to the control module through the DC redundant module to identify abnormal conditions.
The continuous operation of AEM water electrolytic hydrogen production equipment during the switching of mains power and UPS power supply is achieved, which improves power supply stability, controllability and safety, and avoids equipment power loss and shutdown.
Smart Images
Figure CN223124653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of AEM water electrolysis hydrogen production electrical control, in particular to a redundant power supply uninterruptible self-switching system for AEM water electrolysis hydrogen production equipment. Background Art
[0002] Hydrogen is a clean energy source, and water electrolysis hydrogen production is an efficient and clean hydrogen production technology. Currently, the control systems of AEM water electrolysis hydrogen production equipment all use PLC to control the automatic operation of the whole equipment. Due to the lack of guarantee of the continuity and reliability of the mains power supply, many factories are equipped with UPS power supply equipment to ensure the power supply of AEM water electrolysis hydrogen production equipment. However, there is a short power outage during the process of switching from mains power to UPS power supply, which will cause the PLC control system of AEM water electrolysis hydrogen production equipment to lose power and stop running. After the UPS resumes power supply, it needs to be restarted by personnel before it can operate. If the AEM water electrolysis hydrogen production equipment does not restart and resume operation in time after abnormal power outage, due to the flammable and explosive characteristics of hydrogen, there will be certain potential hazards.
[0003] Therefore, how to keep the AEM water electrolysis hydrogen production equipment running without power interruption during the switching process between mains power and UPS power supply to further ensure unattended operation of the AEM water electrolysis hydrogen production equipment has become an urgent technical problem to be solved. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a redundant power supply uninterruptible self-switching system for AEM water electrolysis hydrogen production equipment, so that the AEM water electrolysis hydrogen production system can keep running without power interruption during the switching process between mains power and UPS power supply, and further ensure unattended operation of the AEM water electrolysis hydrogen production equipment.
[0005] To achieve the above purpose, the utility model provides a redundant power supply uninterruptible self-switching system for AEM water electrolysis hydrogen production equipment, including an ATS double power supply automatic transfer switch, the ATS double power supply automatic transfer switch is respectively electrically connected to the AC main power supply and the AC standby power supply, the ATS double power supply automatic transfer switch is also electrically connected to the load module, the AC main power supply and the AC standby power supply are also electrically connected to a switching power supply, and the switching power supply is electrically connected to a control module through a DC redundancy module.
[0006] Preferably, the ATS dual-power automatic transfer switch includes a first input terminal, a second input terminal, and an output terminal. The first input terminal is connected to the AC main power supply, the second input terminal is connected to the AC standby power supply, and the output terminal is connected to the load module. The ATS dual-power automatic transfer switch is an intelligent automatic transfer switch with fast response speed, and has functions such as self-switching and self-restoring, status detection, and abnormal output. The ATS automatically detects the power supply situation of the input terminals. When any one of the two AC power supply lines at the input terminals loses power or has a power abnormality, the ATS will quickly and automatically switch to the other AC power supply to ensure that the power supply to the load module at the output terminal is uninterrupted.
[0007] Preferably, the switching power supply includes a first switching power supply and a second switching power supply, and the first switching power supply and the second switching power supply are electrically connected to the AC main power supply and the AC standby power supply respectively.
[0008] Preferably, the DC redundancy module is internally provided with two DC input endpoints and a single output endpoint. The two DC input endpoints are electrically connected to the first switching power supply and the second switching power supply respectively, and the output endpoint is electrically connected to the control module. The DC redundancy module supports a 1+1 redundancy system, and mainly selects one of the two switching power supplies to supply direct current that meets the preset power supply requirements to the control module.
[0009] Preferably, the AC main power supply is a mains power supply, and the AC standby power supply is a UPS power supply.
[0010] Preferably, the control module includes a PLC control system, valves, and instruments.
[0011] Preferably, the load module includes a rectifier cabinet and a motor.
[0012] Therefore, the AEM water electrolysis hydrogen production equipment redundant power supply uninterruptible self-switching system of the present invention with the above structure has the following beneficial effects:
[0013] The present invention automatically detects the power supply situation of the input terminals through the ATS dual-power automatic transfer switch, can immediately identify the power loss situation, and can automatically switch the power supply to ensure continuous and uninterrupted power supply, ensuring that the load equipment keeps running throughout the process, greatly improving the power supply redundancy uninterruptible ability of the load system. And the DC redundancy module in the present invention can identify whether the two switching power supplies output normally, and will automatically select the path that has not appeared abnormal to supply power to the control module, ensuring that the control module is always powered on and running during the switching process of the AC main power supply and the AC standby power supply. Greatly improving the power supply redundancy uninterruptible ability of the control module, at the same time, the DC redundancy module will output a digital quantity to the PLC control system to inform the abnormal situation.
[0014] With the present utility model, the problem of power loss and shutdown in the prior art is solved, and the power supply stability, uninterruptibility, controllability and safety of the AEM water electrolysis hydrogen production equipment are further improved.
[0015] The technical solution of the present utility model will be further described in detail below with reference to the drawings and embodiments. Brief Description of the Drawings
[0016] Figure 1 It is a system schematic diagram of a redundant power supply non-stop self-switching system for an AEM water electrolysis hydrogen production equipment of the present utility model;
[0017] Figure 2 It is a schematic diagram of the principle of a DC redundant module of a redundant power supply non-stop self-switching system for an AEM water electrolysis hydrogen production equipment of the present utility model. Detailed Embodiments
[0018] The technical solution of the present utility model will be further described below with reference to the drawings and embodiments.
[0019] Unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0020] Embodiment
[0021] As Figure 1-2 shown, the present utility model provides a redundant power supply non-stop self-switching system for an AEM water electrolysis hydrogen production equipment, including an ATS dual-power automatic transfer switch. The ATS dual-power automatic transfer switch is electrically connected to the AC main power supply and the AC standby power supply respectively, and the ATS dual-power automatic transfer switch is also electrically connected to the load module. The AC main power supply and the AC standby power supply are also electrically connected to a switching power supply, and the switching power supply is electrically connected to a control module through a DC redundant module. The AC main power supply is a mains power supply, and the AC standby power supply is a UPS power supply.
[0022] The ATS dual-power automatic transfer switch includes Input Terminal 1, Input Terminal 2 and an output terminal. Input Terminal 1 is connected to the AC main power supply, Input Terminal 2 is connected to the AC standby power supply, and the output terminal is connected to the load module. The ATS dual-power automatic transfer switch is an intelligent automatic transfer switch with fast response speed, and has functions such as self-switching and restoration, status detection, and abnormal output. The ATS automatically detects the power supply situation of the input terminals. When any one of the two AC power supply lines at the input terminals loses power or has a power abnormality, the ATS will quickly and automatically switch to the other AC power supply to ensure uninterrupted power supply to the load module at the output terminal.
[0023] The switching power supply includes Switching Power Supply 1 and Switching Power Supply 2. Switching Power Supply 1 and Switching Power Supply 2 are electrically connected to the AC main power supply and the AC standby power supply respectively.
[0024] The DC redundancy module has two DC input endpoints and a single output endpoint. The two DC input endpoints are electrically connected to Switching Power Supply 1 and Switching Power Supply 2 respectively, and the output endpoint is electrically connected to the control module. The DC redundancy module supports a 1+1 redundancy system, and mainly selects one of the two switching power supplies to supply DC power that meets the preset power supply requirements to the control module. The control module includes a PLC control system, valves, and instruments. The load module includes a rectifier cabinet and a motor.
[0025] Working principle: As Figure 1 shown, the AC power supply is divided into the mains power and the UPS power supply. The UPS power supply is used as the standby power supply. The mains power is connected to Input Terminal 1 of the ATS dual-power automatic transfer switch, and the UPS power supply is connected to Input Terminal 2. Under normal circumstances, both the mains power and the UPS power supply connected to the ATS input terminals are powered. When any one of the mains power or the UPS power supply loses power or is abnormal, the ATS will automatically and quickly switch to the normal one to ensure uninterrupted power supply to the load module during the power supply switching process. At the same time, the ATS will feedback its working status and abnormal conditions to the PLC control system through the modbus communication method.
[0026] Switching Power Supply 1 is connected to the mains power and converts the 220VAC / 380VAC alternating current into direct current for control. At the same time, Switching Power Supply 2 is connected to the UPS power supply and converts the 220VAC / 380VAC alternating current into direct current for control. The two converted direct currents are respectively connected to the DC redundancy module, as Figure 2As shown in the figure, when both switching power supply one and switching power supply two are outputting normally, the redundancy module selects one of the DC power supplies to supply power to the control module. When one of switching power supply one and switching power supply two loses power or has abnormal output, the redundancy module will select the normal one to supply power to the control module. At the same time, the redundancy module outputs digital signals to the PLC control system to inform the abnormal position. In this way, as long as the mains power and the UPS power do not both lose power, the control module will always remain powered on, so that the control system will not lose power and stop during the switching process between the mains power and the UPS power, improving the power supply stability, controllability and safety of the AEM water electrolysis hydrogen production equipment.
[0027] Therefore, the present utility model adopts the above-mentioned uninterruptible power self-switching system for the redundant power supply of the AEM water electrolysis hydrogen production equipment. By automatically detecting the power supply situation at the input end through the ATS dual-power automatic transfer switch, it can identify the power loss situation in time and automatically switch the power supply to ensure continuous and uninterrupted power supply, and ensure that the load equipment keeps running throughout the process, greatly improving the redundant and uninterrupted power supply capacity of the load system. And the DC redundancy module in the present utility model can identify whether the two switching power supplies are outputting normally, and will automatically select the normal one to supply power to the control module to ensure that the control module is always powered on during the switching process between the AC main power supply and the AC standby power supply. Greatly improving the redundant and uninterrupted power supply capacity of the control system power supply, and at the same time, the DC redundancy module outputs digital signals to the PLC control system to inform the abnormal situation.
[0028] Through the present utility model, the problem of power loss and shutdown in the prior art is solved, and the power supply stability, redundant uninterruptibility, controllability and safety of the AEM water electrolysis hydrogen production equipment are further improved.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.
Claims
1. A redundant power supply uninterruptible self-switching system for an AEM water electrolysis hydrogen production device, characterized in that, It includes an ATS dual-power automatic transfer switch, which is electrically connected to the AC main power supply and the AC standby power supply respectively. The ATS dual-power automatic transfer switch is also electrically connected to the load module. The AC main power supply and the AC standby power supply are also electrically connected to the switching power supply. The switching power supply is electrically connected to the control module through a DC redundancy module.
2. The redundant power supply uninterruptible self-switching system of an AEM water electrolysis hydrogen production device according to claim 1, characterized in that: The ATS dual-power automatic transfer switch includes a first input terminal, a second input terminal and an output terminal. The first input terminal is connected to the AC main power supply, the second input terminal is connected to the AC standby power supply, and the output terminal is connected to the load module.
3. The redundant power supply uninterruptible self-switching system for an AEM water electrolysis hydrogen production device according to claim 1, characterized in that: The switching power supply includes a first switching power supply and a second switching power supply. The first switching power supply and the second switching power supply are electrically connected to the AC main power supply and the AC standby power supply respectively.
4. An uninterruptible self-switching system for redundant power supply of an AEM water electrolysis hydrogen production device according to claim 3, characterized in that: The DC redundancy module has two DC input endpoints and a single output endpoint. The two DC input endpoints are electrically connected to the first switching power supply and the second switching power supply respectively, and the output endpoint is electrically connected to the control module.
5. The redundant power supply uninterruptible self-switching system for an AEM water electrolysis hydrogen production device according to claim 1, characterized in that: The AC main power supply is a mains power supply, and the AC standby power supply is a UPS power supply.
6. The redundant power supply uninterruptible self-switching system for an AEM water electrolysis hydrogen production device according to claim 1, characterized in that: The control module includes a PLC control system, valves and instruments.
7. A redundant power supply uninterruptible self-switching system for an AEM water electrolysis hydrogen production device according to claim 1, characterized in that: The load module includes a rectifier cabinet and a motor.