Low-voltage double-circuit power supply automatic conversion system

Abstract

The utility model relates to the technical field of power supply switching, in particular to a low-voltage double-circuit power supply automatic switching system, which comprises a control module, and is characterized by further comprising a temperature sensor, a current transformer, a voltage transformer, a remote communication module, a relay, an alarm module and a display panel which are all electrically connected with the control module, and further comprising a power supply change-over switch, the power supply change-over switch is electrically connected with the dual-power supply module, the dual-power supply module comprises a first power supply and a second power supply, the first power supply is powered by a power grid, the second power supply is a storage battery pack, an inverter is connected in series on a line where the dual-power supply module is connected with a load, and a super capacitor is arranged in parallel on the line where the dual-power supply module is connected with the load. Automatic monitoring and automatic switching of a low-voltage double-path power supply are realized, and continuous supply of the power supply is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power switching, in particular to a low-voltage dual-circuit power automatic conversion system. Background Art

[0002] As modern society becomes increasingly dependent on electricity supply, the requirements for the continuity and reliability of power supply are getting higher and higher. System power failure may cause data loss, equipment damage and service interruption. When power problems occur, it is necessary to quickly switch to backup power supply to avoid affecting the load in the system.

[0003] Traditional power switching technology relies on manual switching, which is inefficient and prone to errors. The dual-power automatic conversion system takes into account power redundancy and backup, which can reduce the risk of system downtime caused by single power failure.

[0004] With the development of remote monitoring and automation technology, there is a need for a dual-power automatic conversion system that can automatically switch power supplies to ensure a stable power supply while also being remotely monitored. Utility Model Content

[0005] The utility model provides a low-voltage dual-circuit power supply automatic conversion system.

[0006] The technical solution of this utility model is as follows:

[0007] A low-voltage dual-circuit power automatic conversion system includes a control module, characterized in that it also includes a temperature sensor, a current transformer, a voltage transformer, a remote communication module, a relay, an alarm module and a display panel electrically connected to the control module.

[0008] The control module further includes a power conversion switch electrically connected to the control module, wherein the power conversion switch is electrically connected to the dual power module, wherein the dual power module includes a first power supply and a second power supply, wherein the first power supply is powered by a power grid, and the second power supply is a battery pack.

[0009] The line connecting the dual power supply module and the load is connected in series with an inverter.

[0010] Supercapacitors are arranged in parallel on the lines connecting the dual power supply module and the load.

[0011] Specifically, the remote communication module is provided with a Wi-Fi communication interface, an Ethernet communication interface and an RS-232 communication interface.

[0012] Specifically, the relay is an electromechanical relay.

[0013] Specifically, the inverter is a three-phase inverter.

[0014] Preferably, the power transfer switch is an ATS automatic transfer switch.

[0015] Preferably, the control module is a DSP chip.

[0016] Furthermore, the alarm module includes a buzzer and an LED indicator light, both of which are electrically connected to the control module.

[0017] Preferably, the display panel is a liquid crystal display (LCD) display.

[0018] Preferably, the temperature sensor is a thermoelectric temperature sensor.

[0019] The beneficial effects of the utility model are:

[0020] (1) The utility model is a low-voltage dual-circuit power automatic conversion system. The dual power module provides dual power supply protection. When a power grid failure occurs, it can receive a signal from the control module and automatically switch to the battery through the power conversion switch, thereby realizing automatic monitoring and automatic switching of the low-voltage dual-circuit power supply, and ensuring the continuous supply of power.

[0021] (2) An inverter is set between the dual power module and the load. The inverter converts the DC power of the second power supply into the AC power required by the load. At the same time, a supercapacitor is set between the dual power module and the inverter. The supercapacitor provides a short-term energy supply when the first power supply and the second power supply are switched, thereby realizing seamless switching between the first power supply and the second power supply, improving the performance and reliability of the low-voltage dual-power automatic conversion system when switching from the first power supply to the second power supply, and reducing the risk of failure caused by power switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0023] In the attached picture:

[0024] Figure 1 The figure is a schematic diagram of the structure of each module of a low-voltage dual-power supply automatic conversion system in an embodiment. DETAILED DESCRIPTION

[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0026] Example

[0027] This embodiment provides a low-voltage dual-circuit power supply automatic conversion system. Figure 1, including a control module, characterized in that it also includes a temperature sensor, a current transformer, a voltage transformer, a remote communication module, a relay, an alarm module and a display panel that are electrically connected to the control module,

[0028] The control module further includes a power conversion switch electrically connected to the control module, wherein the power conversion switch is electrically connected to the dual power module, wherein the dual power module includes a first power supply and a second power supply, wherein the first power supply is powered by a power grid, and the second power supply is a battery pack.

[0029] The line connecting the dual power supply module and the load is connected in series with an inverter.

[0030] Supercapacitors are arranged in parallel on the lines connecting the dual power supply module and the load.

[0031] Specifically, in the utility model, the control module is the core control unit of the low-voltage dual-power supply automatic conversion system. The control module is a DSP chip, which is responsible for receiving data collected in real time by temperature sensors, current transformers, and voltage transformers, receiving power data transmitted by power conversion switches and relays in real time, and transmitting the collected various data to the remote control room through the remote communication module, receiving instructions issued from the remote control room, and further transmitting the instruction signals to other modules or devices in the system.

[0032] The power conversion switch is used to realize automatic switching between the first power supply and the second power supply. The power conversion switch used in this embodiment is an ATS automatic conversion switch.

[0033] The dual power module is used to provide dual power supply for the system. The dual power module includes a first power supply and a second power supply. The first power supply is the main power supply, which is used to connect to the power grid for power supply; the second power supply is the backup power supply, which is a battery pack in this embodiment, and is used to provide temporary power supply when the first power supply fails. When the first power supply fails, such as power failure, the power conversion switch sends a fault signal to the control module, and the control module sends a command to the power conversion switch to complete the rapid switching from the first power supply to the second power supply to ensure continuous power supply.

[0034] The utility model also includes an inverter arranged on the line connecting the dual power supply module and the load, which is used to convert the direct current generated by the second power supply into alternating current for use by the load; a supercapacitor is arranged in parallel between the dual power supply module and the inverter, which is used to provide instantaneous energy when the first power supply is switched to the second power supply, thereby reducing the load power-off time caused by power supply switching and ensuring stable power supply to the load.

[0035] The current transformer is used to monitor the load current connected to the system in real time, obtain current data, and transmit the obtained current data to the control module; the voltage transformer is used to monitor the power supply voltage of the dual power module in the system in real time, and transmit the obtained electrical data to the control module; the temperature sensor is used to monitor the operating temperature of the load device or dual power module connected to the system in real time, and transmit the obtained temperature data to the control module. The temperature sensor used is a thermoelectric temperature sensor. The actual installation position of the current transformer, voltage transformer and temperature sensor is set according to the actual monitoring requirements of the system.

[0036] The remote communication module is used to transmit various data collected by the control module to the remote control room, receive remote commands, and realize two-way data transmission and exchange between the low-voltage dual-power supply automatic conversion system and the remote control room. The remote communication module is equipped with a Wi-Fi communication interface, an Ethernet communication interface and an RS-232 communication interface.

[0037] The display panel is used to provide an intuitive user interface. The display panel is an LCD liquid crystal display screen that can display the system's operating status, operating voltage, operating current, temperature and fault information to the operator in real time.

[0038] The relay is connected to the external load and is used to control the on / off of the connected load device under the command of the control module. The relay is an electromechanical relay that can carry a large working current and realize remote and automatic on / off control of high-power loads.

[0039] The alarm module is used to detect abnormal conditions such as power disconnection, high load temperature, excessive current, etc. The alarm module includes a buzzer and an LED indicator light. Under the command of the control module, it will give an audible and visual alarm to remind the staff to handle it in time.

[0040] The utility model provides a low-voltage dual-circuit power supply automatic conversion system, which can be expanded according to actual use requirements to add more control points or loads without large-scale changes to the existing system.

Claims

1. A low-voltage dual-circuit power supply automatic conversion system, comprising a control module, characterized in that: It also includes a temperature sensor, a current transformer, a voltage transformer, a remote communication module, a relay, an alarm module and a display panel, all of which are electrically connected to the control module. The control module further includes a power conversion switch electrically connected to the control module, wherein the power conversion switch is electrically connected to the dual power module, wherein the dual power module includes a first power supply and a second power supply, wherein the first power supply is powered by a power grid, and the second power supply is a battery pack. The line connecting the dual power supply module and the load is connected in series with an inverter. Supercapacitors are arranged in parallel on the lines connecting the dual power supply module and the load.

2. A low voltage dual power supply automatic conversion system according to claim 1, characterized in that: The remote communication module is provided with a Wi-Fi communication interface, an Ethernet communication interface and an RS-232 communication interface.

3. A low voltage dual power supply automatic conversion system according to claim 1, characterized in that: The relay is an electromechanical relay.

4. A low voltage dual power supply automatic conversion system according to claim 1, characterized in that: The inverter is a three-phase inverter.

5. A low voltage dual power supply automatic conversion system according to claim 1, characterized in that: The power transfer switch is an ATS automatic transfer switch.

6. A low voltage dual power supply automatic conversion system according to claim 1, characterized in that: The control module is a DSP chip.

7. A low voltage dual power supply automatic conversion system according to claim 1, characterized in that: The alarm module includes a buzzer and an LED indicator light, both of which are electrically connected to the control module.

8. A low voltage dual power supply automatic conversion system according to claim 1, characterized in that: The display panel type is an LCD liquid crystal display screen.

9. A low voltage dual power supply automatic conversion system according to claim 1, characterized in that: The temperature sensor is a thermoelectric temperature sensor.

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