Feeder automation terminal based on photovoltaic applications

Abstract

The utility model provides a feeder automation terminal based on photovoltaic applications, which belongs to the field of photovoltaic application technology. It includes a box and a photovoltaic power generation component, a mainboard is arranged inside the box, an aviation plug connector is arranged on one side of the box, an operation panel is hinged inside the front of the box, a wireless transmission component is fixedly installed inside the box, the wireless transmission component is connected to the mainboard, the photovoltaic power generation component includes a photovoltaic power generation panel, a solar controller is fixedly installed inside the box, and a power storage component is connected to the output end of the solar controller. The advantage is that the device uses a combination of photovoltaic panels and battery components to supply power to the mainboard and other loads at different times, so that the terminal can be independent of the power supply of the power grid, avoid increasing the load of the power grid, and is conducive to maintaining the stability of the power grid. The battery photovoltaic power supply can avoid the phenomenon of power outage of the power grid and loss of connection between the FTU and the main station during maintenance.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic applications, and in particular relates to a feeder automation terminal based on photovoltaic applications. Background Art

[0002] Feeder automation terminal plays a vital role in the power distribution system. It can not only improve the response speed and operation efficiency of the system, but also enhance the reliability and safety of the system. Through real-time monitoring and control, the feeder automation terminal (FTU) can promptly discover and solve problems, prevent faults from expanding, and ensure the stability of power supply. In addition, FTU has strong system integration and can seamlessly connect with other automated power distribution equipment to achieve integrated operation of the entire system. Its fast and accurate data transmission technology and high reliability ensure the efficient operation of the power distribution system, while low maintenance costs also reduce operating costs.

[0003] Traditionally, all power needs of feeder automation terminals need to be supplied by traditional power grids. The power supply of traditional FTU terminal equipment often relies on external line voltage transformers. This method of accessing the power supply in outdoor lines is too simple and direct. If the line is in a power-off state for a long time, the battery pack of the FTU terminal equipment will not be able to meet the charging needs when it needs to be charged. During maintenance, power outages in the power grid can easily cause the feeder automation terminal to lose connection with the main station. In addition, for remote areas, the problem of working power supply for outdoor distribution terminal equipment in distribution automation construction has always been a difficult problem. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the load of the power grid increases due to the power grid supply. Aiming at the deficiencies of the prior art, a feeder automation terminal based on photovoltaic application is provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] It includes a box body and a photovoltaic power generation component. A mainboard is arranged inside the box body, an aviation plug connector is arranged on one side of the box body, an operation panel is hinged inside the front of the box body, a wireless transmission component is fixedly installed inside the box body, and the wireless transmission component is connected to the mainboard. The photovoltaic power generation component includes a photovoltaic power generation panel, a solar controller is fixedly installed inside the box body, the output end of the photovoltaic power generation panel is connected to the solar controller, and the output end of the solar controller is connected to a power storage component, and the power storage component is used to supply power to the mainboard.

[0007] Furthermore, the output end of the solar controller is connected to the main board, and the power storage component is connected in parallel to the line between the solar controller and the main board.

[0008] Furthermore, the operation panel is hinged to the inside of the front side of the box body, an alarm switch is fixedly installed on one side of the operation panel, an electrical component is fixedly installed inside the alarm switch, one end of the electrical component is connected to the main board through a wire, an elliptical frame is rotatably arranged inside the alarm switch, the elliptical frame is used for sliding connection with the electrical component, a rotating shaft is arranged at the axis of the elliptical frame, the bottom of the rotating shaft passes through a lock tongue fixedly installed on the bottom of the alarm switch, one side of the lock tongue is clamped with the inside of the box body, and the top of the rotating shaft passes through the alarm switch and a knob is fixedly installed.

[0009] Furthermore, a torsion spring is fixedly mounted on the inner wall of the elliptical frame, and one end of the torsion spring is fixedly mounted on the inner wall of the alarm switch.

[0010] Furthermore, the connecting member is an elastic metal sheet with a certain arc shape.

[0011] Furthermore, a door is hinged on the front of the box body, and a transparent panel is arranged on the front of the door.

[0012] Furthermore, the power storage component includes a dual-circuit control board, which includes two groups of first switches, two groups of second switches, a control chip and a battery status acquisition component. The solar controller is divided into two groups, which are respectively connected to the two groups of the first switches. The output ends of the two groups of the first switches are connected to batteries. The two groups of batteries are respectively connected to the two groups of the second switches. The output ends of the two groups of the second switches are combined into one group and connected to the battery status acquisition component. The output end of the battery status acquisition component is connected to the main board.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The device uses a combination of photovoltaic panels and battery components to power the mainboard and other loads at different times, so that the terminal does not rely on power supply from the power grid. The photovoltaic version of the FTU terminal has achieved the diversification of power supply by introducing solar power generation technology, effectively improving the power supply stability of the FTU terminal equipment. The battery photovoltaic power supply can avoid the phenomenon of power outages in the power grid and loss of connection between the FTU and the main station during maintenance, meeting the requirements for reliable operation of the distribution network automation system. The photovoltaic version of the FTU terminal, with its new energy power supply technology, provides a feasible solution for remote areas, exploring and solving the power supply problem of FTU in remote areas.

[0015] 2. The operation buttons and display screen are integrated on the operation panel, so that basic operations can be performed on the operation panel, which is more convenient, reduces the operation frequency inside the box, and reduces misoperation. At the same time, with the alarm switch and wireless transmission component, when the operation panel is opened, the operation will be transmitted to the remote monitoring personnel through the wireless transmission component to alarm and leave operation records, and remotely monitor the operation status of each module of the device when the operation panel is opened.

[0016] 3. After the photovoltaic panels generate electricity, the solar controller is used to charge the two groups of batteries separately and distribute the power. It can adapt to photovoltaic panels with higher power and can quickly replenish electricity when the light duration is short.

[0017] 4. The use of photovoltaic FTU terminals also reflects the concern for environmental protection and sustainability. By using solar energy, a renewable energy source, the dependence on traditional energy is reduced, the pollution to the environment is reduced, and it is in line with the green and low-carbon development trend. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Figure 1 : A three-dimensional structural diagram of Example 1 of the utility model;

[0020] Figure 2 : A schematic diagram of the structure of the operation panel in Embodiment 1 of the present utility model;

[0021] Figure 3 : A schematic diagram of the structure inside the box in the utility model;

[0022] Figure 4 : A schematic diagram of the structure of the alarm switch in Embodiment 1 of the present utility model;

[0023] Figure 5 : The utility model Figure 4 A schematic diagram of the structure in cross-section;

[0024] Figure 6 : A schematic diagram of the structure inside the elliptical frame in Example 1 of the utility model;

[0025] Figure 7 : A schematic diagram of the connection between the dual circuit control board and the battery in Embodiment 2 of the present utility model;

[0026] Figure 8 : A schematic diagram of the structure of a solar controller and a battery assembly in Example 1 of the present utility model.

[0027] Among them, 10, box body; 11, main board; 12, aviation plug connector; 13, box door; 14, transparent panel; 20, photovoltaic power generation component; 21, photovoltaic power generation panel; 22, solar controller; 30, operation panel; 31, alarm switch; 32, joint component; 33, elliptical frame; 34, shaft; 35, lock tongue; 36, knob; 37, torsion spring; 40, wireless transmission component; 50, power storage component; 51, dual circuit control board; 52, first switch; 53, battery; 54, second switch; 55, control chip; 56, battery status acquisition component. DETAILED DESCRIPTION

[0028] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0029] Example 1: See Figure 1-8A feeder automation terminal based on photovoltaic applications in this embodiment includes a box 10 and a photovoltaic power generation component 20. A main board 11 is arranged inside the box 10. An aviation plug connector 12 is arranged on one side of the box 10. The aviation plug connector 12 includes a 6p current aviation plug and an improved 14P aviation plug. The original CN+CN-DC+DC-V+V- has changed its original definition, and the 11th and 12th pins of the original 14P are used for V+V-. The original 14p aviation plug only bears the functions of control signals and zero-sequence voltage, and now a voltage function is added. An operation panel 30 is hinged inside the front of the box 10. By combining the operation button and the display screen on the operation panel 30, basic operations are performed on the operation panel 30, which is more convenient, reduces the operation frequency inside the box 10, and reduces misoperation. A wireless transmission component 40 is fixedly installed inside the box 10. The wireless transmission component 40 is connected to the main board 11. Through the wireless transmission component 40, it can The mainboard 11 is remotely operated, telemetered, telesignaled and remotely adjusted. The photovoltaic power generation component 20 includes a photovoltaic power generation panel 21. A solar controller 22 is fixedly installed inside the box 10. The solar controller 22 is specifically an MPPT solar controller. After the photovoltaic power generation panel 21 generates electricity, the MPPT solar controller 22 stabilizes the voltage and current and supplies power to the load. The output end of the photovoltaic power generation panel 21 is connected to the solar controller 22. The output end of the solar controller 22 is connected to the power storage component 50. The power storage component 50 is used to supply power to the mainboard 11. The output end of the solar controller 22 is connected to the mainboard 11. The mainboard 11 supplies power to the display screen devices on the operation panel 30 and the wireless transmission component 40. The power storage component 50 is connected in parallel to the line between the solar controller 22 and the mainboard 11. When the photovoltaic power generation panel 21 generates electricity, the power greater than the load part is used to charge the power storage component 50. When the solar power generation power is less than the load demand power, the power storage component 50 discharges and supplies power to the load together.

[0030] See also Figure 2-5The operation panel 30 is hinged inside the front of the box body 10. An alarm switch 31 is fixedly installed on one side of the operation panel 30. A coupling member 32 is fixedly installed inside the alarm switch 31. One end of the coupling member 32 is connected to the main board 11 through a wire. An elliptical frame 33 is rotatably arranged inside the alarm switch 31. The elliptical frame 33 is used for sliding connection with the coupling member 32. The elliptical frame 33 contacts the coupling member 32, so that the circuit of the coupling member 32 is connected, and the signal is sent to the remote monitoring personnel through the main board 11 and the wireless transmission component 40; the axis of the elliptical frame 33 A rotating shaft 34 is provided at the center, and the rotation of the rotating shaft 34 drives the elliptical frame 33 to rotate. The bottom of the rotating shaft 34 passes through the bottom of the alarm switch 31 and is fixedly installed with a lock tongue 35. One side of the lock tongue 35 is engaged with the interior of the box body 10. The top of the rotating shaft 34 passes through the alarm switch 31 and is fixedly installed with a knob 36. When the knob 36 is turned, the knob 36 drives the rotating shaft 34 to rotate. In conjunction with the alarm switch 31 and the wireless transmission component 40, when the operation panel 30 is opened, the operation will be transmitted to the remote monitoring personnel through the wireless transmission component to alarm, leaving an operation record.

[0031] See also Figure 6 A torsion spring 37 is fixedly installed on the inner wall of the elliptical frame 33, and one end of the torsion spring 37 is fixedly installed on the inner wall of the alarm switch 31. After turning the knob 36, the elliptical frame 33 is driven to rotate and return to its original position under the restoring force of the torsion spring 37. When the operation inside the box 10 is completed, the knob 36 needs to be turned again. The opening time of the box 10 and whether the box 10 is closed after opening can be obtained based on the interval between the two turns of the knob 36.

[0032] See also Figure 5 The connecting member 32 is an elastic metal sheet with a certain arc shape. When the elliptical frame 33 rotates, it squeezes the connecting member 32 of the elastic metal sheet, so that the circuits of the two groups of connecting members 32 are connected. Since the elastic metal sheet 32 ​​undergoes elastic deformation, the contact effect is guaranteed when the elliptical frame 33 contacts the elastic metal sheet, avoiding the deterioration of the contact effect and the inability to complete the alarm due to long-term use.

[0033] See also Figure 1-3 A door 13 is hinged on the front of the box body 10, and a transparent panel 14 is arranged on the front of the door 13. When it is necessary to observe the devices on the operation panel 30, such as the display indicator lights, the observation can be completed through the transparent panel 14, and there is no need to open the door 13. The operation panel 30 can be covered and locked to prevent water ingress and misoperation.

[0034] Beneficial effects:

[0035] 1. After the photovoltaic panel 21 generates electricity, the MPPT solar controller 22 stabilizes the voltage and current and outputs the maximum power to supply power to the load. At the same time, the power greater than the load is used to charge the power storage component 50. When the solar power generation power is less than the load demand power, the power storage component 50 discharges to supply power to the load. The device uses the photovoltaic panel 21 and the battery component 50 in combination to supply power to the main board 11 and other loads at different times, so that the terminal does not rely on power supply from the power grid. The photovoltaic version of the FTU terminal has achieved the diversification of power supply by introducing solar power generation technology, and effectively improved the power supply stability of the FTU terminal equipment. The battery photovoltaic power supply can avoid the phenomenon of power outage of the power grid and the loss of connection between the FTU and the main station during maintenance, meeting the requirements for reliable operation of the distribution network automation system. The photovoltaic version of the FTU terminal, with its new energy power supply technology, provides a feasible solution for remote areas, and explores and solves the power supply problem of FTU in remote areas.

[0036] 2. The use of photovoltaic FTU terminals also reflects the concern for environmental protection and sustainability. By using solar energy, a renewable energy source, the dependence on traditional energy is reduced, the pollution to the environment is reduced, and it is in line with the green and low-carbon development trend.

[0037] 3. Turn the knob 36, the knob 36 drives the shaft 34 to rotate, and the rotation of the shaft 34 drives the elliptical frame 33 to rotate, so that the elliptical frame 33 contacts the electrical component 32, so that the circuit of the electrical component 32 is connected, and the signal is sent to the remote monitoring personnel through the main board 11 and the wireless transmission component 40; by combining the operation button and the display screen on the operation panel 30, basic operations can be performed on the operation panel 30, which is more convenient, reduces the operation frequency inside the box 10, and reduces misoperation. At the same time, with the alarm switch 31 and the wireless transmission component 40, when the operation panel 30 is opened, the operation will be transmitted to the remote monitoring personnel through the wireless transmission component to alarm and leave an operation record, so as to remotely monitor the operation of each module of the device when the operation panel 30 is opened.

[0038] Embodiment 2: Embodiment 2 is a further improvement made on the basis of Embodiment 1, see Figure 3 and Figure 7In this embodiment, a feeder automation terminal based on photovoltaic applications is provided. The power storage component 50 includes a dual-circuit control board 51. The dual-circuit control board 51 includes two groups of first switches 52, two groups of batteries 53, two groups of second switches 54, a control chip 55, and a battery status acquisition component 56. The charging circuits of the two groups of batteries 53 are connected to the solar controller 22, and the discharging circuits are connected to the battery status acquisition component 56. The two groups of first switches 52 are respectively connected in series in the charging circuits of the two groups of batteries 53, and the two groups of second switches 54 are respectively connected in series in the discharging circuits of the two groups of batteries 53. By turning on one of the first switches 52, a group of batteries 53 corresponding to the first switch 52 can be charged. By turning on one of the second switches 54, a group of batteries 53 corresponding to the second switch 54 can be discharged. The output end of the battery status acquisition component 56 is connected to the main board 11.

[0039] The battery 53 is responsible for storing the electric energy generated by the photovoltaic panel so as to supply it to the terminal device when there is no light. The battery status acquisition component 56 includes voltage, current, capacity and other status acquisition functions. The battery status acquisition component 56 is connected to the storage battery and obtains the status information of the battery 53 for processing and storage. The battery status acquisition component 56 is connected to the wireless transmission component 40 to transmit the status information of the battery 53 through the wireless transmission component 40, which is convenient for background status monitoring.

[0040] Beneficial Effects

[0041] 1. After the photovoltaic panel 21 generates electricity, the solar controller 22 is used to charge the two groups of batteries 53 respectively, and the power is distributed. It can adapt to the photovoltaic panel 21 with larger power and can quickly replenish electric energy when the light duration is short.

[0042] 2. By controlling the opening and closing of the two sets of first switches 52 and the two sets of second switches 54, the photovoltaic panel 21 can be controlled to charge the two sets of batteries 53 separately or together; the two sets of batteries 53 can be controlled to supply power to the power loads separately. The two sets of batteries 53 are designed to backup each other to avoid the terminal failure that cannot be controlled due to damage to one set of circuit batteries 53.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeder automation terminal based on photovoltaic applications, comprising a box (10) and a photovoltaic power generation assembly (20), wherein a main board (11) is arranged inside the box (10), characterized in that: An aviation plug connector (12) is provided on one side of the box (10); an operation panel (30) is hingedly connected to the interior of the front of the box (10); a wireless transmission component (40) is fixedly installed inside the box (10); the wireless transmission component (40) is connected to the main board (11); the photovoltaic power generation component (20) comprises a photovoltaic power generation panel (21); a solar controller (22) is fixedly installed inside the box (10); an output end of the photovoltaic power generation panel (21) is connected to the solar controller (22); an output end of the solar controller (22) is connected to a power storage component (50); the power storage component (50) is used to supply power to the main board (11).

2. The feeder automation terminal based on photovoltaic application according to claim 1, characterized in that: The output end of the solar controller (22) is connected to the main board (11), and the power storage component (50) is connected in parallel to the line between the solar controller (22) and the main board (11).

3. The feeder automation terminal based on photovoltaic application as claimed in claim 1, characterized in that: The operation panel (30) is hinged to the inside of the front of the box (10); an alarm switch (31) is fixedly installed on one side of the operation panel (30); a coupling component (32) is fixedly installed inside the alarm switch (31); one end of the coupling component (32) is connected to the main board (11) through a wire; an elliptical frame (33) is rotatably arranged inside the alarm switch (31); the elliptical frame (33) is used for sliding connection with the coupling component (32); a rotating shaft (34) is arranged at the axis of the elliptical frame (33); a locking tongue (35) is fixedly installed on the bottom of the rotating shaft (34); one side of the locking tongue (35) is clamped with the inside of the box (10); and a knob (36) is fixedly installed on the top of the rotating shaft (34) through the alarm switch (31).

4. The feeder automation terminal based on photovoltaic application as claimed in claim 3, characterized in that: A torsion spring (37) is fixedly mounted on the inner wall of the elliptical frame (33), and one end of the torsion spring (37) is fixedly mounted on the inner wall of the alarm switch (31).

5. The feeder automation terminal based on photovoltaic application as claimed in claim 3, characterized in that: The connecting element (32) is an elastic metal sheet with a certain arc shape.

6. The photovoltaic application-based feeder automation terminal according to claim 1, characterized in that: A box door (13) is hingedly connected to the front of the box body (10), and a transparent panel (14) is arranged on the front of the box door (13).

7. The feeder automation terminal based on photovoltaic application according to any one of claims 1 to 6, characterized in that: The power storage component (50) comprises a dual-circuit control board (51), the dual-circuit control board (51) comprising two groups of first switches (52), two groups of second switches (54), a control chip (55) and a battery status acquisition component (56); the solar controller (22) is divided into two groups, which are respectively connected to the two groups of the first switches (52); the output ends of the two groups of the first switches (52) are both connected to batteries (53); the two groups of batteries (53) are respectively connected to the two groups of the second switches (54); the output ends of the two groups of the second switches (54) are combined into one group and connected to the battery status acquisition component (56); and the output end of the battery status acquisition component (56) is connected to the main board (11).

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