Micro-grid control system

Abstract

The utility model discloses a micro-grid control system, and particularly relates to the micro-grid control field, the micro-grid control system comprises a cabinet body, the cabinet body is internally provided with a power supply management switch, the power supply management switch comprises a solar cell switch, an energy storage cell switch and a charging switch, and the solar cell switch, the energy storage cell switch and the charging switch are all provided with switch dialing pieces; a control mechanism is further arranged in the cabinet body and comprises a power component, the output end of the power component is connected with a connecting plate, a sliding plate is arranged in the connecting plate in a sliding mode, a shifting shaft is installed on one side of the sliding plate, and the shifting shaft is inserted into the switch shifting piece. According to the utility model, the control mechanism and the controller are arranged, so that the power supply can be switched in time under a set condition, and the problem that the power supply is interrupted due to the fact that the power supply cannot be switched to the energy storage battery in time because the communication is unstable and a remote operator cannot receive a notice or an alarm that the power supply needs to be switched in time is solved.

Description

Technical Field

[0001] This utility model relates to the field of microgrid control technology, and more specifically, to a microgrid control system. Background Technology

[0002] A microgrid control system is a comprehensive set of technologies for managing and optimizing the operation of a microgrid. It enables the microgrid to operate safely, reliably, and efficiently. A microgrid is a local power network consisting of distributed energy resources (such as solar panels, wind turbines, battery energy storage systems, etc.), loads (electrical equipment), and necessary power electronic converters.

[0003] For unmanned power plants located in remote areas, which use various renewable resources (such as solar energy and battery storage) to provide electricity, the source and flow of electricity need to be adjusted according to daytime, nighttime and different seasons, and the power source needs to be switched (such as switching between solar cells and energy storage batteries). Currently, the switches are usually operated through remote monitoring and control software to allow operators to manage the system from a remote location. However, because the power plants are located in remote areas without stable communication network support, the unstable communication means that remote operators cannot receive notifications or alarms that require switching power in a timely manner, resulting in an inability to react quickly. When solar energy is insufficient to meet the demand, the power cannot be switched to energy storage batteries in time, leading to power supply interruptions. Utility Model Content

[0004] The microgrid control system provided by this utility model aims to solve the following problem: existing power plants are located in remote areas without stable communication network support. Due to unstable communication, remote operators cannot receive notifications or alarms that require power switching in a timely manner, resulting in an inability to react quickly. When solar energy is insufficient to meet the demand, the system fails to switch to energy storage batteries in time, leading to power supply interruptions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a microgrid control system, comprising: a cabinet, wherein a power management switch is provided inside the cabinet, the power management switch including a solar cell switch, an energy storage battery switch and a charging switch, and each of the solar cell switch, the energy storage battery switch and the charging switch is provided with a switch lever;

[0006] The cabinet also contains a control mechanism, which includes a power unit. The output end of the power unit is connected to a connecting plate, and a sliding plate is slidably installed inside the connecting plate. A dial shaft is installed on one side of the sliding plate and is inserted into a switch lever. The control mechanism drives the dial shaft to move the switch lever through the power unit to control the opening or closing of the power management switch.

[0007] In a preferred embodiment, the control mechanism further includes an adjustment component, which includes a fixed cylinder fixedly installed at the end of the slide plate, a dial shaft slidably disposed within the fixed cylinder, and an elastic element and a pull rod provided at the end of the dial shaft, the pull rod being slidably disposed within the fixed cylinder.

[0008] In a preferred embodiment, the cabinet is further provided with a linkage mechanism, which is used to simultaneously control the opening or closing of the solar cell switch, the energy storage battery switch, and the charging switch.

[0009] In a preferred embodiment, the linkage mechanism includes two hinged plates, the control mechanism includes three sets, and the three sets of control mechanisms are driven by a power component. Each of the three connecting plates has a fixed shaft fixedly installed at its end, and each of the two ends of the hinge plate has a notch. The two hinge plates are in movable contact with the corresponding fixed shaft through the notch.

[0010] In a preferred embodiment, the control mechanism further includes a mounting plate, which is fixedly mounted inside the cabinet, a power component is fixedly mounted on the mounting plate, and a hinge plate is hinged to the mounting plate.

[0011] In a preferred embodiment, a limiting plate is fixedly mounted on the mounting plate, and a connecting plate is slidably mounted on the limiting plate.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention solves the problem of power supply interruption caused by the failure of remote operators to receive timely notifications or alarms requiring power switching due to unstable communication, which prevents timely switching to the energy storage battery. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the power management switch of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the control mechanism of this utility model.

[0017] Figure 4 This is a top sectional view of a portion of the structure of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the linkage mechanism of this utility model.

[0019] The attached diagram is labeled as follows: 1. Cabinet; 2. Power management switch; 21. Solar cell switch; 22. Energy storage battery switch; 23. Charging switch; 24. Switch lever; 3. Control mechanism; 31. Mounting plate; 32. Power component; 33. Connecting plate; 34. Slide plate; 35. Shaft; 36. Adjustment component; 361. Fixed cylinder; 362. Elastic element; 363. Pull rod; 4. Linkage mechanism; 41. Hinge plate; 411. Notch; 42. Fixed shaft; 5. Controller. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Refer to the instruction manual appendix Figures 1 to 5 A microgrid control system includes: a cabinet 1, a power management switch 2 installed inside the cabinet 1, the power management switch 2 including a solar cell switch 21, an energy storage battery switch 22 and a charging switch 23, and a switch lever 24 installed on the solar cell switch 21, the energy storage battery switch 22 and the charging switch 23.

[0022] The cabinet 1 is also equipped with a control mechanism 3, which includes a power component 32. The output end of the power component 32 is connected to a connecting plate 33. A slide plate 34 is slidably arranged in the connecting plate 33. A dial 35 is installed on one side of the slide plate 34. The dial 35 is inserted into the switch dial 24. The control mechanism 3 drives the dial 35 to move the switch dial 24 through the power component 32 to control the opening or closing of the power management switch 2.

[0023] It should be noted that the solar cell switch 21 is the switch from the solar cell to the load. By toggling the switch lever 24 on the solar cell switch 21, the power supply from the solar cell to the load is controlled. The energy storage battery switch 22 is the switch from the energy storage battery to the load. By toggling the switch lever 24 on the energy storage battery switch 22, the power supply from the energy storage battery to the load is controlled. The charging switch 23 is the connection switch for charging the solar cell and the energy storage battery. By toggling the switch lever 24 on the charging switch 23, the charging connection between the solar cell and the energy storage battery is controlled to be turned on or off.

[0024] It should also be noted that a controller 5 is installed inside the cabinet 1. The controller 5 is a PLC controller, and the power component 32 is a cylinder. The PLC controller controls the operation of the cylinder by setting conditions. The setting conditions can be to switch the power supply before sunset at a specific time, or to detect environmental conditions through sensors such as light sensors, temperature sensors, or current sensors, and automatically control the cylinder to operate according to the sensor input.

[0025] The specific implementation scenario is as follows: First, the power is switched before sunset at a specific time, or environmental conditions are detected by sensors such as light sensors, temperature sensors, or current sensors. The cylinder is automatically controlled to operate based on the sensor input. When the specific time is reached, or when the sensor detects that there is no sun in the environment, the controller 5 controls the drive cylinder to drive the connecting plate 33 to move vertically. During the movement of the connecting plate 33, the sliding plate 34 drives the dial 35 to move, so that the dial 35 can move the switch tweezer 24 to control the opening or closing. In addition, when it is necessary to control the solar cell to switch to the energy storage battery, the solar cell switch 21 and the charging switch 23 need to be opened, and the energy storage battery switch 22 needs to be opened to disconnect the solar cell from the load and disconnect the solar cell from the energy storage battery, and open the energy storage battery from the load. Conversely, when controlling the energy storage battery to switch to the solar cell, the solar cell switch 21 and the charging switch 23 are opened, and the energy storage battery switch 22 is opened.

[0026] Further, please refer to the appendix to the instruction manual. Figure 4 The control mechanism 3 also includes a mounting plate 31, which is fixedly installed inside the cabinet 1. The power component 32 is fixedly installed on the mounting plate 31. The control mechanism 3 also includes an adjustment component 36, which includes a fixed cylinder 361, which is fixedly installed at the end of the slide plate 34. The pivot shaft 35 is slidably disposed inside the fixed cylinder 361, and the end of the pivot shaft 35 is provided with an elastic element 362 and a pull rod 363, which is slidably disposed inside the fixed cylinder 361.

[0027] It should be noted that the mounting plate 31 can be fixedly installed in the cabinet 1 by fixing bolts. The elastic element 362 is a spring. When installing the control mechanism 3, the mounting plate 31 needs to be fixedly installed first. At this time, the pivot shaft 35 has not yet been inserted into the switch plate 24. By pulling the pull rod 363, the pivot shaft 35 can be pulled into the fixing cylinder 361 and the spring can be squeezed. Then, the sliding plate 34 can be slid to align the pivot shaft 35 with the switch plate 24. Then, the pull rod 363 can be released. Under the action of the elastic deformation of the spring, the pivot shaft 35 can be reset and slid into the switch plate 24, so that the pivot shaft 35 can be easily installed into the switch plate 24.

[0028] In the above technical solution, since the power management switch 2 includes a solar cell switch 21, an energy storage battery switch 22, and a charging switch 23, three cylinders are required to drive the solar cell switch 21, the energy storage battery switch 22, and the charging switch 23 to open or close. In order to reduce costs, this utility model also provides a linkage mechanism 4, which is used to simultaneously control the opening or closing of the solar cell switch 21 and the charging switch 23 while controlling the opening or closing of the energy storage battery switch 22.

[0029] For details, please refer to the instruction manual appendix. Figure 5 The cabinet 1 is also equipped with a linkage mechanism 4, which is used to simultaneously control the opening or closing of the solar cell switch 21, the energy storage battery switch 22 and the charging switch 23. The linkage mechanism 4 includes two hinged plates 41, which are hinged on the mounting plate 31. The control mechanism 3 includes three sets, and the three sets of control mechanisms 3 are driven by a power component 32. The ends of the three connecting plates 33 are all fixedly provided with fixed shafts 42, and the two ends of the hinge plates 41 are provided with notches 411. The two hinge plates 41 are in contact with the corresponding fixed shafts 42 through the notches 411.

[0030] It should be noted that when controlling the solar cell to switch to the energy storage battery, it is necessary to control the solar cell switch 21 and the charging switch 23 to disconnect, and control the energy storage battery switch 22 to open, so as to disconnect the solar cell from the load and disconnect the solar cell from the energy storage battery, and open the energy storage battery from the load. At this time, the connecting plate 33 on the energy storage battery switch 22 is moved by the drive cylinder to control the energy storage battery switch 22 to open. At this time, through the joint cooperation of the hinge plate 41 and the fixed shaft 42, it can drive the connecting plate 33 on the solar cell switch 21 and the charging switch 23 to move in the opposite direction, thereby actuating the switch lever 24 of the solar cell switch 21 and the charging switch 23, so that the solar cell switch 21 and the charging switch 23 are disconnected. Thus, the opening and closing of the solar cell switch 21, the energy storage battery switch 22 and the charging switch 23 can be controlled simultaneously by only one cylinder.

[0031] Further, please refer to the appendix to the instruction manual. Figure 3 A limit plate is fixedly installed on the mounting plate 31, and the connecting plate 33 is slidably installed on the limit plate.

[0032] It should be noted that by setting a limiting plate on the mounting plate 31, the connecting plate 33 can slide on the limiting plate, which can limit the movement of the connecting plate 33.

[0033] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A microgrid control system, characterized in that, include: Cabinet (1), the cabinet (1) is equipped with a power management switch (2), the power management switch (2) includes a solar cell switch (21), an energy storage battery switch (22) and a charging switch (23), and each of the solar cell switch (21), the energy storage battery switch (22) and the charging switch (23) is equipped with a switch lever (24). The cabinet (1) is also equipped with a control mechanism (3). The control mechanism (3) includes a power component (32). The output end of the power component (32) is connected to a connecting plate (33). A sliding plate (34) is slidably arranged in the connecting plate (33). A dial shaft (35) is installed on one side of the sliding plate (34). The dial shaft (35) is inserted into the switch dial (24). The control mechanism (3) drives the dial shaft (35) to move the switch dial (24) through the power component (32) to control the opening or closing of the power management switch (2).

2. A microgrid control system according to claim 1, characterized in that: The control mechanism (3) further includes an adjustment component (36), which includes a fixed cylinder (361) that is fixedly installed at the end of the slide plate (34). The dial shaft (35) is slidably disposed in the fixed cylinder (361), and the end of the dial shaft (35) is provided with an elastic element (362) and a pull rod (363), which is slidably disposed in the fixed cylinder (361).

3. A microgrid control system according to claim 2, characterized in that: The cabinet (1) is also equipped with a linkage mechanism (4), which is used to simultaneously control the opening or closing of the solar cell switch (21), the energy storage battery switch (22) and the charging switch (23).

4. A microgrid control system according to claim 3, characterized in that: The linkage mechanism (4) includes two hinged plates (41) and the control mechanism (3) includes three sets. The three sets of control mechanisms (3) are driven by a power component (32). The ends of the three connecting plates (33) are all fixedly provided with fixed shafts (42), and the two ends of the hinge plates (41) are provided with notches (411). The two hinge plates (41) are in contact with the corresponding fixed shafts (42) through the notches (411).

5. A microgrid control system according to claim 4, characterized in that: The control mechanism (3) also includes a mounting plate (31), which is fixedly installed inside the cabinet (1), the power component (32) is fixedly installed on the mounting plate (31), and the hinge plate (41) is hinged on the mounting plate (31).

6. A microgrid control system according to claim 5, characterized in that: A limiting plate is fixedly provided on the mounting plate (31), and the connecting plate (33) is slidably provided on the limiting plate.

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