Electric power data acquisition system with power failure detection and standby power supply

Abstract

The utility model belongs to the field of electrical technology, and particularly relates to an electric power data acquisition system with power failure detection and a standby power supply. The utility model provides an electric power data acquisition system with power failure detection and a standby power supply. The electric power data acquisition system mainly comprises an incoming line miniature circuit breaker installed at a power supply input end; the 220V intermediate relay and the power supply module are connected with the inlet wire miniature circuit breaker, and the 220V intermediate relay is connected with the power supply module; the I / O module is connected with the 220V intermediate relay and the power supply module; the communication management unit is connected with the power supply module and the I / O module; and the storage battery is connected with the power supply module. The photovoltaic inverter monitoring system has a standby power supply function during power failure, also has a remote monitoring function during power failure, can ensure that the system can still work normally during power failure, and improves the monitoring efficiency and safety of the photovoltaic inverter.

Description

Technical Field

[0001] The utility model belongs to the field of electrical technology, and in particular relates to an electric power data acquisition system with power-off detection and backup power supply. Background Art

[0002] With the rapid development of renewable energy, people are increasingly demanding the stability and reliability of their power supply. During the photovoltaic inverter data collection process, power outages can sometimes occur, which can impact the data collection and communication systems, affecting their stability and reliability. Therefore, it is necessary to develop a power data collection system that can monitor power outages to ensure the normal operation of the data collection process. Utility Model Content

[0003] Therefore, in order to solve the impact of power outages on the data acquisition and communication systems during the acquisition process of the photovoltaic inverter, the utility model provides an electric power data acquisition system with power-off detection and a backup power supply, which is used to solve the problem of decreased stability and reliability of the photovoltaic inverter data acquisition and communication systems in the event of a power outage, improve the stability and reliability of the data acquisition and communication system operation, and ensure the smooth progress of the data acquisition process.

[0004] In summary, the technical solutions adopted by the present invention to solve the technical problems are as follows:

[0005] The utility model provides an electric power data acquisition system with power failure detection and backup power supply, which mainly includes:

[0006] Incoming miniature circuit breaker installed at the power input end;

[0007] A 220V intermediate relay and a power supply module connected to the incoming miniature circuit breaker, wherein the 220V intermediate relay and the power supply module are connected;

[0008] An I / O module connected to the 220V intermediate relay and the power module;

[0009] a communication management unit connected to the power module and the I / O module;

[0010] A battery connected to the power module.

[0011] Furthermore, the upper port of the incoming miniature circuit breaker is connected to 220V AC power, and the lower port of the incoming miniature circuit breaker is respectively connected to a power module and a 220V intermediate relay.

[0012] Furthermore, the incoming miniature circuit breaker can turn on and off the input power supply; the contacts of the 220V intermediate relay are used to switch the connection state of the circuit, opening or closing the circuit through the contacts, and realizing the opening and closing of the system remote signal through the opening and closing of the 220V intermediate relay.

[0013] Furthermore, the power supply module adopts a 12V battery charging module with a backup power supply, and is powered by the backup power supply after a power outage.

[0014] Furthermore, the I / O module has RS485 communication function. The I / O module collects power-off remote signals through the closure of the normally open contacts of the 220V intermediate relay and transmits them to the communication management unit through RS485.

[0015] Furthermore, the communication management unit collects data from the I / O module and the photovoltaic inverter, and then uploads the collected data to the cloud server in the main station through the 4G network or other network forms to remotely monitor the photovoltaic inverter.

[0016] Furthermore, the battery is a backup power source for the power module. When the main circuit is powered off, the battery provides power to ensure normal operation of the system.

[0017] Furthermore, the battery is a 4AH battery.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides an electric power data acquisition system with power failure detection and backup power supply, which is a stable and reliable communication system.

[0020] The utility model provides an electric power data acquisition system with power failure detection and backup power supply, which mainly includes: an incoming line miniature circuit breaker, a 220V intermediate relay, a power module, an I / O module, a communication management unit, and a battery. The incoming line miniature circuit breaker is used to realize the function of turning on and off the input power supply, the 220V intermediate relay is used to realize the connection state of the switching circuit and realize the opening and closing of the system remote signal, the power module is used to power the entire system, the I / O module realizes the RS485 communication function, the communication management unit is used to communicate with the master station and transmit data to realize remote monitoring of the photovoltaic inverter, and the battery is used to realize the power supply function when the main circuit is powered off, ensuring that the electric power data acquisition system with power failure detection and backup power supply provided by the utility model can still operate normally during power failure.

[0021] The utility model provides an electric power data acquisition system with power failure detection and backup power supply, which has a backup power supply function in the event of a power outage and a remote monitoring function in the event of a power outage, thereby ensuring that the system can still operate normally in the event of a power outage, thereby improving the monitoring efficiency and safety of the photovoltaic inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides a circuit diagram of an electric power data acquisition system with power failure detection and backup power supply.

[0023] In the figure, QF1, incoming line miniature circuit breaker, 1, 220V intermediate relay, 2, power module, 3, I / O module, 4, communication management unit, 5, battery, 6, photovoltaic inverter, 7, photovoltaic module, 8, grid cabinet, 9, disconnector, 10, grid incoming line switch, 11, TA1 metering module, 12, TA2 measurement module. DETAILED DESCRIPTION

[0024] Currently, the photovoltaic inverter 6 is connected to the photovoltaic modules 7 and the grid cabinet 8, specifically to the grid inlet switch 10 in the grid cabinet 8. The grid inlet switch 10, TA2 measurement module 12, TA1 metering module 11, and isolating switch 9 are sequentially connected, with isolating switch 9 connected to the outgoing line. The power data acquisition system with power failure detection and backup power provided by the present invention is primarily installed on the photovoltaic inverter 6 side, that is, connected to the photovoltaic inverter 6.

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] See also Figure 1 To illustrate, the utility model provides an electric power data acquisition system with power failure detection and backup power supply, which mainly consists of the following components:

[0027] Incoming miniature circuit breaker QF1, 220V intermediate relay 1, power module 2, I / O module 3, communication management unit 4 and battery 5.

[0028] In the present invention, the incoming line miniature circuit breaker QF1 is installed at the power input end.

[0029] Specifically, the upper port of the incoming miniature circuit breaker QF1 is connected to 220V AC power, and the lower port of the incoming miniature circuit breaker QF1 is respectively connected to the power module 2 (12V) and the 220V intermediate relay 1. The incoming miniature circuit breaker QF1 has the function of conducting and cutting off the input power.

[0030] In the present invention, the 220V intermediate relay 1 is connected to the incoming miniature circuit breaker QF1, the power module 2 and the I / O module 3 respectively.

[0031] Among them, the contacts of the 220V intermediate relay 1 can be used to switch the connection state of the circuit. The circuit can be opened or closed through the contacts, and the opening and closing of the system remote signaling is realized by the opening and closing of the 220V intermediate relay 1.

[0032] In the present invention, the power module 2 is connected to the incoming miniature circuit breaker QF1, the 220V intermediate relay 1, the I / O module 3, the communication management unit 4 and the battery 5 respectively.

[0033] The power module 2 is a 12V battery charging module with a backup power supply, which is used to power each module. When the 220V AC power is disconnected, the backup power supply can be used to power the entire system.

[0034] In the present invention, the I / O module 3 is connected to the 220V intermediate relay 1, the power module 2 and the communication management unit 4 respectively.

[0035] Among them, the I / O module 3 has RS485 communication function. The I / O module 3 collects the power-off remote signal through the closure of the normally open contact of the 220V intermediate relay 1, and then transmits it to the communication management unit 4 through RS485.

[0036] In the present invention, the communication management unit 4 is connected to the power module 2, the I / O module 3 and the photovoltaic inverter 6 respectively.

[0037] Among them, the communication management unit 4 is mainly used to collect data from the I / O module 3 and the photovoltaic inverter 6, and then upload the collected data from the I / O module 3 and the photovoltaic inverter 6 to the cloud server in the main station through the 4G network or other network forms to realize remote monitoring of the photovoltaic inverter 6.

[0038] In the present invention, a battery 5 is connected to the power module 2. As a backup power source for the power module 2, the battery 5 primarily provides power when the main circuit loses power, ensuring the normal operation of each module in the system. This ensures that the power data acquisition system with power failure detection and backup power provided by the present invention can continue to operate normally during a power outage, thereby improving the monitoring efficiency and safety of the photovoltaic inverter 6.

[0039] The battery 5 may be a 4AH battery, but is not limited thereto.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An electric power data acquisition system with power failure detection and backup power supply, characterized in that: include: Incoming miniature circuit breaker (QF1) installed at the power input end; A 220V intermediate relay (1) and a power supply module (2) connected to the incoming miniature circuit breaker (QF1), wherein the 220V intermediate relay (1) and the power supply module (2) are connected; An I / O module (3) connected to the 220V intermediate relay (1) and the power module (2); a communication management unit (4) connected to the power module (2) and the I / O module (3); A storage battery (5) connected to the power module (2).

2. The power data acquisition system with power failure detection and backup power supply according to claim 1, characterized in that: The upper port of the incoming miniature circuit breaker (QF1) is connected to 220V AC power, and the lower port of the incoming miniature circuit breaker (QF1) is connected to a power module (2) and a 220V intermediate relay (1) respectively.

3. The power data acquisition system with power failure detection and backup power supply according to claim 1, characterized in that: The incoming miniature circuit breaker (QF1) can conduct and cut off the input power supply; the contacts of the 220V intermediate relay (1) are used to switch the connection state of the circuit, and the circuit is opened or closed by the contacts, and the opening and closing of the system remote signal is realized by the opening and closing of the 220V intermediate relay (1).

4. The power data acquisition system with power failure detection and backup power supply according to claim 1, characterized in that: The power supply module (2) adopts a 12V battery charging module with a backup power supply, and is powered by the backup power supply after a power outage.

5. The power data acquisition system with power failure detection and backup power supply according to claim 1, characterized in that: The I / O module (3) has an RS485 communication function. The I / O module (3) collects power-off remote signals through the closure of the normally open contacts of the 220V intermediate relay (1), and transmits the signals to the communication management unit (4) via RS485.

6. The power data acquisition system with power failure detection and backup power supply according to claim 1, characterized in that: The communication management unit (4) collects data from the I / O module (3) and data from the photovoltaic inverter (6), and then uploads the collected data to a cloud server in the master station via a 4G network or other network forms, thereby remotely monitoring the photovoltaic inverter (6).

7. The power data acquisition system with power failure detection and backup power supply according to claim 1, characterized in that: The storage battery (5) is a backup power source for the power module (2). When the main circuit is powered off, the storage battery (5) provides power to ensure normal operation of the system.

8. The power data acquisition system with power failure detection and backup power supply according to claim 1, characterized in that: The battery (5) is a 4AH battery.

Images