Device for interrupting and alarming data reporting channel of new energy electric field

Abstract

The embodiment of the utility model provides a new energy electric field data reporting channel interruption and alarm device, which comprises a power failure detection circuit, a power supply switching circuit, a port detection circuit, a channel switching circuit and a main control circuit, and is characterized in that the output end of the power failure detection circuit is electrically connected with the input end of the main control circuit; the output end of the main control circuit is electrically connected with the main power supply and the standby power supply through the power supply switching circuit. The output end of the port detection circuit is electrically connected with the input end of the main control circuit. The output end of the main control circuit is electrically connected with the main channel device and the standby channel device through the channel switching circuit. According to the application, the power-on and power-off conditions of the main channel equipment are monitored through the power-off detection circuit, and whether the main channel equipment normally transmits data is monitored through the port detection circuit, so that uninterrupted power supply of the main channel equipment and uninterrupted transmission of new energy electric field data are realized; the interruption of data transmission under the conditions of power failure of a main power supply and failure of main channel equipment is effectively avoided, and the working efficiency is further improved.

Description

Technical Field

[0001] This application belongs to the technical field of new energy electric fields, specifically relating to a device for interruption and alarm of data reporting channel in new energy electric fields. Background Technology

[0002] With the continuous growth of global energy demand and the increasing severity of environmental problems, new energy power generation technologies, such as wind and solar power, have become important ways to solve the energy crisis and reduce environmental pollution. As new energy power generation technologies develop, the scale of new energy power plants is also constantly expanding. Among them, wind farms and photovoltaic power plants, due to their geographically dispersed locations, are highly susceptible to adverse weather conditions, communication failures, and other factors, leading to offline phenomena. Furthermore, grid faults or equipment malfunctions can also cause new energy power plants to go offline.

[0003] When a new energy power plant goes offline, the operating data of the equipment in the plant cannot be uploaded to the upper-level monitoring system, resulting in missing operating data. This seriously affects the subsequent data analysis, fault diagnosis, and operation optimization analysis of the upper-level monitoring system. Therefore, there is an urgent need for a device for interruption and alarm of data reporting channels in new energy power plants. Summary of the Invention

[0004] To address one of the aforementioned technical deficiencies, this application provides a device for interruption and alarm of data reporting channels for new energy power plants.

[0005] According to the present application, a device for interruption and alarm of data reporting channel of new energy electric field is provided, comprising: power failure detection circuit, power switching circuit, port detection circuit, channel switching circuit and main control circuit. The power failure detection circuit is connected in series between the main power supply and the power supply terminal of the main channel equipment. The output terminal of the power failure detection circuit is electrically connected to the input terminal of the main control circuit. The output terminal of the main control circuit is electrically connected to the main power supply and the backup power supply respectively through the power switching circuit.

[0006] The port detection circuit is installed on the signal output line of the main channel device. The output terminal of the port detection circuit is electrically connected to the input terminal of the main control circuit. The output terminal of the main control circuit is electrically connected to the main channel device and the backup channel device respectively through the channel switching circuit.

[0007] Preferably, the power failure detection circuit includes: a transistor Q1 and a PMOS transistor Q2. The base of transistor Q1 is connected to the main channel device power supply terminal via a resistor R1. The connection between resistor R1 and the main channel device power supply terminal is connected to the emitter of transistor Q1 via a resistor R2. The connection between resistor R2 and the emitter of transistor Q1 is grounded. The collector of transistor Q1 is connected to the main power supply and the source of PMOS transistor Q2 via a resistor R3. The connection between the collector of transistor Q1 and resistor R3 is connected to the gate of PMOS transistor Q2 via a resistor R4. The drain of PMOS transistor Q2 is connected to the ground via resistors R5 and R6 in series. Capacitor C1 is connected in parallel across resistor R6. The connection between resistors R5 and R6 is connected to the input terminal of the main control circuit.

[0008] Preferably, the power switching circuit includes: a power switching chip U1, a PMOS transistor Q3, and a PMOS transistor Q4. The VIN terminal of the power switching chip U1 is connected to one end of a capacitor C2, the drain of the PMOS transistor Q4, and a backup power supply. The other end of the capacitor C2 is connected to the GND terminal and the CTL terminal of the power switching chip U1 and then grounded. The SENSE terminal of the power switching chip U1 is connected to one end of a resistor R7, the source of the PMOS transistor Q4, and then grounded. The other end of the resistor R7 is connected to the STAT terminal of the power switching chip U1 and the gate of the PMOS transistor Q3. The GATE terminal of the power switching chip U1 is connected to the gate of the PMOS transistor Q4 and the output terminal of the main control circuit.

[0009] Preferably, the port detection circuit includes transistors Q5 and Q6. The base of transistor Q5 is connected in series with capacitor C3 and then connected to the output terminal of the main channel device. The connection between the base of transistor Q5 and capacitor C3 is connected in series with resistors R8 and R10 and then connected to the collector of transistor Q5. The connection between resistors R8 and R10 is connected to the power supply terminal. The connection between resistor R10 and the collector of transistor Q5 is connected to the anode of diode D1. The cathode of diode D1 is connected to one end of resistor R11 and capacitor C4. One end of resistor R11 is connected to one end of capacitor C5 and the base of transistor Q6. The other end of resistor R11 is connected to the emitter of transistor Q5 and one end of resistor R9, and then grounded. The other end of resistor R9 is connected to the base of transistor Q5. The other end of capacitor C4 is grounded. The other end of capacitor C5 is connected to the emitter of transistor Q6 and one end of resistor R13, and then grounded. The other end of resistor R13 is connected to the collector of transistor Q6, one end of resistor R12, and the input terminal of the main control circuit. The other end of resistor R12 is connected to the power supply terminal.

[0010] Preferably, it also includes an undervoltage detection circuit, which is connected in series between the main power supply and the main channel device power supply terminal.

[0011] Preferably, the undervoltage detection circuit includes amplifier P1 and amplifier P2. The inverting input terminal of amplifier P1 is connected to the main power supply after being connected in series with resistor R14. Capacitor C6 is connected in parallel across resistor R14. The connection between the inverting input terminal of amplifier P1 and resistor R14 is connected to one end of resistor R16. The other end of resistor R16 is connected to one end of resistor R17 and one end of capacitor C7 and then grounded. The other end of resistor R17 is connected to one end of resistor R15, the non-inverting input terminal of amplifier P1, one end of resistor R18, the other end of capacitor C7, and the inverting input terminal of amplifier P2. The non-inverting input terminal of amplifier P2 is connected to the other end of resistor R18 and the output terminal of amplifier P1. The output terminal of amplifier P1 is connected to the input terminal of the main control circuit.

[0012] Preferably, it also includes an alarm circuit, which is connected to the output terminal of the main control circuit.

[0013] Preferably, the power switching chip U1 is model LTC4412.

[0014] The device for interruption and alarm of new energy power field data reporting channel provided in this application includes a power failure detection circuit, a power switching circuit, a port detection circuit, a channel switching circuit, and a main control circuit. The power failure detection circuit monitors the power supply status of the main channel equipment, and the port detection circuit monitors whether the main channel equipment is transmitting data normally. This achieves uninterrupted power supply to the main channel equipment and uninterrupted transmission of new energy power field data, effectively avoiding data transmission interruptions in the event of main power failure or main channel equipment failure, and further improving work efficiency. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure provided in Embodiment 1 of this application;

[0017] Figure 2 This is a circuit diagram of the power interruption detection circuit in Embodiment 1 of this application;

[0018] Figure 3 This is a circuit diagram of the power switching circuit in Embodiment 1 of this application;

[0019] Figure 4 This is a circuit diagram of the port detection circuit in Embodiment 1 of this application;

[0020] Figure 5 This is a schematic diagram of the structure provided in Embodiment 2 of this application;

[0021] Figure 6 This is a circuit diagram of the undervoltage detection circuit in Embodiment 2 of this application.

[0022] In the diagram: 1 is the power failure detection circuit, 2 is the power switching circuit, 3 is the port detection circuit, 4 is the channel switching circuit, 5 is the main control circuit, 6 is the undervoltage detection circuit, and 7 is the alarm circuit. Detailed Implementation

[0023] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0024] Example 1

[0025] To address the problems mentioned in the background art, embodiments of this application provide a device for interruption and alarm of data reporting channels in new energy power plants, such as... Figure 1 As shown, it includes: a power failure detection circuit 1, a power switching circuit 2, a port detection circuit 3, a channel switching circuit 4, and a main control circuit 5. The power failure detection circuit 1 is connected in series between the main power supply and the main channel equipment power supply. The output terminal of the power failure detection circuit 1 is electrically connected to the input terminal of the main control circuit 5. The output terminal of the main control circuit 5 is electrically connected to the main power supply and the backup power supply respectively through the power switching circuit 2.

[0026] The port detection circuit 3 is installed on the signal output line of the main channel equipment. The output terminal of the port detection circuit 3 is electrically connected to the input terminal of the main control circuit 5. The output terminal of the main control circuit 5 is electrically connected to the main channel equipment and the backup channel equipment respectively through the channel switching circuit 4.

[0027] Specifically, the main control circuit 5 includes a main control chip and peripheral circuits. The main control chip is a PIC16F1824-I / ML chip. The input terminal of the power failure detection circuit 1 is connected to the main power supply through a power input interface on the device housing. The output terminal of the power failure detection circuit 1 is connected to the power supply terminal of the main channel device through a power output interface on the device housing. The signal control terminal of the power failure detection circuit 1 is connected to the input terminal of the main control circuit 5. When the main power supply fails, the power failure detection circuit 1 sends a power failure signal and transmits it to the main control circuit 5. The main control circuit 5 controls the power switching circuit 2 to switch the power supply line from the main power supply to the backup power supply. The port detection circuit 3 is used to monitor whether the main channel device is transmitting data normally. The port detection circuit 3 is connected to the main channel device through a power input interface on the device housing. The signal interface on the device housing is connected to the main channel equipment, and the signal control terminal of the port detection circuit 3 is connected to the input terminal of the main control circuit 5. When the main channel equipment malfunctions, the port detection circuit 3 sends a fault signal and transmits it to the main control circuit 5. The main control circuit 5 controls the channel switching circuit 4 to switch the transmission channel from the main channel equipment to the backup channel equipment. In this embodiment, the power failure detection circuit 1 monitors the power on / off status of the main channel equipment, and the port detection circuit 3 monitors whether the main channel equipment is transmitting data normally. This achieves uninterrupted power supply to the main channel equipment and uninterrupted transmission of new energy electric field data, effectively avoiding interruption of data transmission in the event of a power failure or a main channel equipment malfunction, and further improving work efficiency.

[0028] like Figure 2 As shown, the power failure detection circuit 1 includes a transistor Q1 and a PMOS transistor Q2. The base of transistor Q1 is connected to the main channel device power supply terminal via a series resistor R1. The connection between resistor R1 and the main channel device power supply terminal is connected to the emitter of transistor Q1 via a series resistor R2. The connection between resistor R2 and the emitter of transistor Q1 is grounded. The collector of transistor Q1 is connected to the main power supply and the source of PMOS transistor Q2 via a series resistor R3. The connection between the collector of transistor Q1 and resistor R3 is connected to the gate of PMOS transistor Q2 via a series resistor R4. The drain of PMOS transistor Q2 is connected in series with resistors R5 and R6 and then grounded. Capacitor C1 is connected in parallel across resistor R6. The connection between resistors R5 and R6 is connected to the input terminal of the main control circuit 5. Specifically, when the main power supply is connected to the main channel device, transistor Q1 is turned on, and then PMOS transistor Q2 is turned on. The voltage is divided by resistors R5 and R6, filtered by capacitor C1, and then a power-on signal is sent to the main control circuit 5. When the main power supply is disconnected from the main channel device, transistor Q1 is turned off, and then PMOS transistor Q2 is turned off, sending a power-off signal to the main control circuit 5.

[0029] like Figure 3As shown, the power switching circuit 2 includes: a power switching chip U1, a PMOS transistor Q3, and a PMOS transistor Q4. The power switching chip U1 is an LTC4412. The VIN terminal of the power switching chip U1 is connected to one end of capacitor C2, the drain of PMOS transistor Q4, and the backup power supply. The other end of capacitor C2 is connected to the GND terminal and the CTL terminal of the power switching chip U1 and then grounded. The SENSE terminal of the power switching chip U1 is connected to one end of resistor R7, the source of PMOS transistor Q4, and then grounded. The other end of resistor R7 is connected to the STAT terminal and the PMOS transistor Q4 of the power switching chip U1. The gate of transistor Q3 is connected to the main control circuit 5. The GATE terminal of the power switching chip U1 is connected to the gate of PMOS transistor Q4 and the output terminal of the main control circuit 5. Specifically, when the main power supply is on, the main control circuit 5 sends a signal through the GATE terminal, the voltage of the SENSE terminal of the power switching chip U1 is pulled high, the GATE terminal outputs a high level, PMOS transistor Q4 is turned off, and the backup power supply does not supply power. At the same time, the voltage of the STAT terminal of the power switching chip U1 is pulled low, PMOS transistor Q3 is turned on, and the backup power supply is used as a load for charging. When the main power supply is off, the voltage of the SENSE terminal of the power switching chip U1 drops, the GATE terminal outputs a low level, PMOS transistor Q4 is turned on, and the backup power supply supplies power.

[0030] like Figure 4As shown, the port detection circuit 3 includes transistors Q5 and Q6. The base of transistor Q5 is connected in series with capacitor C3 and then connected to the output terminal of the main channel device. The connection between the base of transistor Q5 and capacitor C3 is connected in series with resistors R8 and R10 and then connected to the collector of transistor Q5. The connection between resistors R8 and R10 is connected to the power supply terminal. The connection between resistor R10 and the collector of transistor Q5 is connected to the anode of diode D1. The cathode of diode D1 is connected to one end of resistor R11, one end of capacitor C4, one end of capacitor C5, and the base of transistor Q6. The other end of resistor R11 is connected to the emitter of transistor Q5 and one end of resistor R9 and then grounded. The other end of resistor R9 is connected to the base of transistor Q5. The other end of capacitor C4 is grounded. The other end of capacitor C5 is connected to the emitter of transistor Q6 and the resistor R10. One end of resistor R13 is connected to ground, and the other end of resistor R13 is connected to the collector of transistor Q6, one end of resistor R12, and the input terminal of main control circuit 5. The other end of resistor R12 is connected to the power supply terminal. Specifically, diode D1 is connected in series with capacitor C4 and grounded to ensure the stability of the output voltage. When there is a signal source at the output terminal of the main channel device, transistor Q5 is turned on, the potential of the positive terminal of diode D1 is pulled low, diode D1 is reverse cut off, and energy storage capacitor C5 discharges to ground through resistor R11. When the voltage drops to the point that transistor Q6 is cut off, a high-level detection signal is output to main control circuit 5. When there is no signal source at the output terminal of the main channel device, transistor Q5 is cut off, and transistor Q6 is turned on, outputting a low-level detection signal to main control circuit 5, realizing the detection function of the output signal of the main channel device, which facilitates timely switching to the backup channel device when the main channel device fails.

[0031] Example 2

[0032] like Figure 5 As shown, the device for interruption and alarm of data reporting channel of new energy power field further includes an undervoltage detection circuit 6 and an alarm circuit 7. The undervoltage detection circuit 6 is connected in series between the main power supply and the power supply terminal of the main channel equipment. The alarm circuit 7 is connected to the output terminal of the main control circuit 5 and issues an alarm prompt when the main power supply fails, is undervoltage and / or the main channel equipment fails.

[0033] like Figure 6As shown, the undervoltage detection circuit 6 includes amplifier P1 and amplifier P2. The inverting input terminal of amplifier P1 is connected to the main power supply via a resistor R14 in series. Capacitor C6 is connected in parallel across resistor R14. The connection between the inverting input terminal of amplifier P1 and resistor R14 is connected to one end of resistor R16. The other end of resistor R16 is connected to one end of resistor R17 and one end of capacitor C7, and then grounded. The other end of resistor R17 is connected to one end of resistor R15, the non-inverting input terminal of amplifier P1, one end of resistor R18, the other end of capacitor C7, and the inverting input terminal of amplifier P2. The non-inverting input terminal of amplifier P2 is connected to the other end of resistor R18 and the output terminal of amplifier P1. The output terminal of amplifier P1 is connected to the input terminal of the main control circuit 5. Specifically, by comparing amplifiers P1 and P2 with a reference power supply, it is determined whether the main power supply is undervoltage.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0038] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A device for new energy power plant data reporting channel interruption and alarm, characterized in that, The application relates to a power-off detection circuit (1), a power switching circuit (2), a port detection circuit (3), a channel switching circuit (4) and a main control circuit (5), wherein the power-off detection circuit (1) is connected in series between a main power supply and a main channel device power supply end, the output end of the power-off detection circuit (1) is electrically connected with the input end of the main control circuit (5), and the output end of the main control circuit (5) is electrically connected with the main power supply and a standby power supply through the power switching circuit (2). The port detection circuit (3) is arranged on a main channel device signal output line, the output end of the port detection circuit (3) is electrically connected with the input end of the main control circuit (5), and the output end of the main control circuit (5) is electrically connected with the main channel device and a standby channel device through the channel switching circuit (4). The power-off detection circuit (1) comprises a triode Q1 and a PMOS tube Q2, the base of the triode Q1 is connected with the main channel device power supply end through a resistor R1, the connecting line between the resistor R1 and the main channel device power supply end is connected with the emitter of the triode Q1 through a resistor R2, the connecting line between the resistor R2 and the emitter of the triode Q1 is grounded, the collector of the triode Q1 is connected with the main power supply and the source of the PMOS tube Q2 through a resistor R3, the connecting line between the collector of the triode Q1 and the resistor R3 is connected with the gate of the PMOS tube Q2 through a resistor R4, the drain of the PMOS tube Q2 is connected with the ground through a resistor R5 and a resistor R6 in sequence, a capacitor C1 is connected between the resistor R6, the connecting line between the resistor R5 and the resistor R6 is connected with the input end of the main control circuit (5). 2.The device for new energy power plant data reporting channel interruption and alarm according to claim 1, characterized in that, The power switching circuit (2) comprises a power switching chip U1, a PMOS tube Q3 and a PMOS tube Q4, the VIN end of the power switching chip U1 is connected with one end of a capacitor C2, the drain of the PMOS tube Q4 and a standby power supply, the other end of the capacitor C2 is connected with the GND end of the power switching chip U1 and the CTL end of the power switching chip U1 and then grounded, the SENSE end of the power switching chip U1 is connected with one end of a resistor R7, the source of the PMOS tube Q4 and the source of the PMOS tube Q4 and then grounded, the other end of the resistor R7 is connected with the STAT end of the power switching chip U1 and the gate of the PMOS tube Q3, the GATE end of the power switching chip U1 is connected with the gate of the PMOS tube Q4 and the output end of the main control circuit (5). 3.The device for new energy power plant data reporting channel interruption and alarm according to claim 1, characterized in that, ​ 4.The device for new energy power plant data reporting channel interruption and alarm according to claim 1, characterized in that, The port detection circuit (3) comprises: a transistor Q5 and a transistor Q6, the base of the transistor Q5 is connected with the output end of the main channel device after being connected with a capacitor C3 in series, the connection line between the base of the transistor Q5 and the capacitor C3 is connected with the collector of the transistor Q5 after being connected with a resistor R8 and a resistor R10 in series, the connection line between the resistor R8 and the resistor R10 is connected with the power supply end, the connection line between the resistor R10 and the collector of the transistor Q5 is connected with the anode of a diode D1, the cathode of the diode D1 is connected with one end of a resistor R11, one end of a capacitor C4, one end of a capacitor C5 and the base of the transistor Q6 respectively, the other end of the resistor R11 is connected with the emitter of the transistor Q5 and one end of a resistor R9 and then grounded, the other end of the resistor R9 is connected with the base of the transistor Q5, the other end of the capacitor C4 is grounded, the other end of the capacitor C5 is connected with the emitter of the transistor Q6 and one end of a resistor R13 and then grounded, the other end of the resistor R13 is connected with the collector of the transistor Q6, one end of a resistor R12 and the input end of the main control circuit (5), the other end of the resistor R12 is connected with the power supply end.

5. The device for new energy power plant data reporting channel interruption and alarm according to claim 1, characterized in that, The under-voltage detection circuit (6) is connected in series between the main power supply and the power supply end of the main channel device. 6.The device for new energy power plant data reporting channel interruption and alarm according to claim 5, characterized in that, The under-voltage detection circuit (6) comprises: an amplifier P1 and an amplifier P2, the inverting input end of the amplifier P1 is connected with the main power supply after being connected with a resistor R14 in series, a capacitor C6 is connected in parallel across the resistor R14, the connection line between the inverting input end of the amplifier P1 and the resistor R14 is connected with one end of a resistor R16, the other end of the resistor R16 is connected with one end of a resistor R17 and one end of a capacitor C7 and then grounded, the other end of the resistor R17 is connected with one end of a resistor R15, the non-inverting input end of the amplifier P1, one end of a resistor R18, the other end of the capacitor C7 and the inverting input end of the amplifier P2, the non-inverting input end of the amplifier P2 is connected with the other end of the resistor R18 and the output end of the amplifier P1, the output end of the amplifier P1 is connected with the input end of the main control circuit (5). 7.The device for new energy power plant data reporting channel interruption and alarm according to claim 1, characterized in that, The alarm circuit (7) is connected with the output end of the main control circuit (5). 8.The device for new energy power plant data reporting channel interruption and alarm according to claim 3, characterized in that, The model of the power supply switching chip U1 is LTC4412.

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