Fan control device, battery box and energy storage system

Abstract

The utility model discloses a draught fan control device, a battery box and an energy storage system, and belongs to the technical field of fire fighting systems of energy storage power stations, the draught fan control device is used for controlling a draught fan, the draught fan comprises a first node and a second node, and the draught fan control device comprises a conversion unit and an automatic switching unit. The conversion unit comprises a first switch and a second switch, the first switch comprises a first end and a second end, and the second end is connected with the second node; the second switch comprises a third end and a fourth end, the third end is connected with the second node, and the fourth end is connected with the first node; the automatic switching unit comprises a fifth end and a sixth end, the fifth end and the sixth end are connected through a switch, the fifth end is connected with the first end, and the sixth end is connected with the fourth end. Start and stop of the fan are manually and automatically controlled in a linkage mode.

Description

Technical Field

[0001] The present application belongs to the technical field of fire protection systems for energy storage power stations, and specifically relates to a fan control device, a battery box, and an energy storage system. Background Art

[0002] At present, the existing manual start-stop device only uses manual control and does not consider automatic control, resulting in the inability to discharge flammable gas in the energy storage battery box in time. At the same time, there is also a lack of status change monitoring of the manual start-stop device, resulting in the problem of being unable to know the abnormal status of the system.

[0003] That is, the interior of the energy storage box is a closed space where combustible gases accumulate. If they encounter an ignition source, they may cause a fire or explosion, resulting in casualties and property damage. The current fan on / off control method inside the battery box is unable to promptly discharge the combustible gases generated within the battery box. In this case, once the combustible gases accumulate to a certain level, the risk of fire or explosion increases. Furthermore, there is a lack of status change monitoring for the manual start-stop device. This means that if the manual start-stop device is in an abnormal state, relevant information cannot be obtained in a timely manner. In this case, if the manual start-stop device is in an abnormal state, the operator will not be able to take the necessary measures to resolve the problem in a timely manner, which may lead to further losses or accidents. Summary of the Invention

[0004] In view of this, the present application discloses a wind turbine control device, a battery box and an energy storage system.

[0005] Technical solution: In a first aspect, an embodiment of the present application provides a wind turbine control device for controlling a wind turbine, wherein the wind turbine includes a first node and a second node, and the wind turbine control device includes:

[0006] a conversion unit comprising a first switch and a second switch, wherein the first switch comprises a first end and a second end, the second end being connected to the second node; and the second switch comprises a third end and a fourth end, the third end being connected to the second node, and the fourth end being connected to the first node.

[0007] The automatic switching unit includes a fifth end and a sixth end, wherein the fifth end and the sixth end are connected via a switch, the fifth end is connected to the first end, and the sixth end is connected to the fourth end.

[0008] In some embodiments, the automatic switching unit includes:

[0009] a first switch module, comprising a first common terminal and a third switch, wherein the fifth terminal is provided on the first switch module, and two ends of the third switch are connected to the first common terminal and the fifth terminal respectively;

[0010] a second switch module, comprising a second common terminal and a fourth switch, wherein the second common terminal is connected to the first common terminal, the sixth terminal is provided on the second switch module, and two ends of the fourth switch are connected to the second common terminal and the sixth terminal respectively;

[0011] The control ends of the third switch and the fourth switch are both connected to the controller signal.

[0012] In some embodiments, the automatic switching unit includes a fifth switch, wherein the fifth switch is connected to the fifth terminal and the sixth terminal respectively;

[0013] The control end of the fifth switch is connected to the controller signal.

[0014] In some embodiments, the conversion unit further includes a sixth switch, two ends of the sixth switch are respectively connected to two sampling ends of the controller, and the sixth switch is configured to open and close synchronously with the first switch.

[0015] In some embodiments, the conversion unit includes a body and a manual control portion connected to the body, the first switch and the second switch are both provided on the body, and the manual control portion is configured to move relative to the body between a first position, a second position, and a third position;

[0016] The manual control unit is in the first position, the first switch is closed, and the second switch is open;

[0017] The manual control unit is in the second position, the first switch is open, and the second switch is closed;

[0018] The manual control portion is located at the third position, and the first switch and the second switch are both turned on.

[0019] In some embodiments, the manual control portion is located at the first position, and the automatic switching unit is connected to the fifth end and the sixth end to turn on the fan.

[0020] In some embodiments, the manual control portion is located at the first position, and the automatic switching unit is not connected to the fifth end and the sixth end, so that the fan is turned off.

[0021] In some embodiments, the conversion unit further includes a first redundant switch connected in parallel with the first switch; and / or the wind turbine control device further includes a second redundant switch connected in parallel with the second switch.

[0022] In a second aspect, an embodiment of the present application further provides a battery box, which includes any one of the above-mentioned wind turbine control devices.

[0023] In a third aspect, an embodiment of the present application further provides an energy storage system, which includes any one of the above-mentioned wind turbine control devices, or includes the above-mentioned battery box.

[0024] Multiple embodiments of the present application have one of the following beneficial effects: a fan control device is provided for controlling a fan, the fan including a first node and a second node, the fan control device including a conversion unit and an automatic switching unit; the conversion unit includes a first switch and a second switch, the first switch includes a first end and a second end, the second end is connected to the second node; the second switch includes a third end and a fourth end, the third end is connected to the second node, and the fourth end is connected to the first node; the automatic switching unit includes a fifth end and a sixth end, the fifth end is connected to the sixth end, and the fifth end is connected to the first end, and the sixth end is connected to the first node; the present application realizes manual and automatic linkage control of the fan start and stop, the automatic control mode is the default mode, the first switch is closed, and the fan can be automatically started and stopped by controlling the on and off between the fifth end and the sixth end, and the combustible gas generated in the battery box is discharged in time; by setting manual control of the first switch to open and the second switch to open and close, the fan can be manually started and stopped. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of the overall structure of a fan control device provided in an embodiment of the present application;

[0027] Figure 2 Another schematic diagram of the overall structure of the fan control device provided in an embodiment of the present application;

[0028] Figure 3 A control logic diagram of each switch by the controller provided in an embodiment of the present application;

[0029] Figure 4 Another control logic diagram of each switch by the controller provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of the structure of a conversion unit provided in an embodiment of the present application;

[0031] Figure 6 Schematic diagram of the on-off status of each switch in the conversion unit provided in an embodiment of the present application under various control modes.

[0032] Reference numerals:

[0033] 10-fan; 11-first node; 12-second node;

[0034] 20 - conversion unit; 21 - first switch; 211 - first end; 212 - second end; 22 - second switch; 221 - third end; 222 - fourth end; 23 - fifth switch; 24 - body; 25 - manual control unit; 26 - second position; 27 - second position; 28 - third position;

[0035] 30 - automatic switching unit; 31 - fifth terminal; 32 - sixth terminal; 33 - first on module; 34 - first common terminal; 35 - third switch; 36 - second off module; 37 - second common terminal; 38 - fourth switch; 39 - sixth switch;

[0036] 40-controller;

[0037] 50-first redundant switch;

[0038] 60-Second redundant switch. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0040] It should be understood that although the terms first, second, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another. Thus, the first component discussed below could be referred to as the second component without departing from the teachings of the present invention. As used herein, the term "and / or" includes any one and all combinations of one or more of the associated listed items.

[0041] Those skilled in the art will appreciate that the drawings are merely schematic diagrams of exemplary embodiments and may not be to scale. The modules or processes in the drawings are not necessarily required to implement the present application and therefore cannot be used to limit the scope of protection of the present application.

[0042] At present, the manual start-stop device for the fan in each battery box of the energy storage power station fire protection system has two built-in relays. Then, a normally open node (on button) is connected in series with a normally closed node (off button) to the passive start node of the fan. When the on button is pressed, the start circuit is closed and the fan starts. When the off button is pressed, the start circuit is disconnected and the fan stops.

[0043] The existing manual start-stop device only uses manual control and does not consider automatic control, resulting in the inability to discharge flammable gases in the energy storage battery box in a timely manner. At the same time, there is a lack of status change monitoring of the manual start-stop device, resulting in the problem of being unable to know the abnormal status of the system.

[0044] That is, the interior of the energy storage box is a closed space where combustible gases accumulate. If they encounter an ignition source, they may cause a fire or explosion, resulting in casualties and property damage. The current fan on / off control method inside the battery box is unable to promptly discharge the combustible gases generated within the battery box. In this case, once the combustible gases accumulate to a certain level, the risk of fire or explosion increases. Furthermore, there is a lack of status change monitoring for the manual start-stop device. This means that if the manual start-stop device is in an abnormal state, relevant information cannot be obtained in a timely manner. In this case, if the manual start-stop device is in an abnormal state, the operator will not be able to take the necessary measures to resolve the problem in a timely manner, which may lead to further losses or accidents.

[0045] In view of this, an embodiment of the present application provides a wind turbine control device for controlling the automatic opening and closing of a wind turbine 10 in an energy storage system, so as to solve at least part of the above technical problems.

[0046] See also Figure 1 , Figure 1 Schematic diagram of the overall structure of the wind turbine control device provided in an embodiment of the present application. In this embodiment, the wind turbine 10 includes a first node 11 and a second node 12. The wind turbine control device includes a conversion unit 20 and an automatic switching unit 30. The conversion unit 20 includes a first switch 21 and a second switch 22. The first switch 21 includes a first end 211 and a second end 212, and the second end 212 is connected to the second node 12; the second switch 22 includes a third end 221 and a fourth end 222, the third end 221 is connected to the second node 12, and the fourth end 222 is connected to the first node 11. The automatic switching unit 30 includes a fifth end 31 and a sixth end 32, the fifth end 31 and the sixth end 32 are connected through a switch, and the fifth end 31 is connected to the first end 211, and the sixth end 32 is connected to the fourth end 222.

[0047] It should be noted that both the first node 11 and the second node 12 are passive nodes. Passive nodes do not have their own power supply; their on / off status is completely controlled by external signals or operations. In this embodiment, when the first node 11 and the second node 12 are connected, the wind turbine 10 starts running; when the first node 11 and the second node 12 are disconnected, the wind turbine 10 stops running.

[0048] Specifically, this embodiment is a manual and automatic linkage control of the start and stop of the fan 10. By controlling the connection state between the fifth terminal 31 and the sixth terminal 32, automatic control of the start and stop of the fan 10 is achieved; by manually controlling the opening of the first switch 21 and the opening and closing of the second switch 22, manual control of the start and stop of the fan 10 is achieved. When the fan control device is in automatic control mode, the second switch 22 is in an open state, the first switch 21 is in a closed state, and the fifth terminal 31 is connected to the second node 12. By controlling the connection state between the fifth terminal 31 and the sixth terminal 32, automatic control of the start and stop of the fan 10 is achieved. When the fan control device is in manual control mode, the first switch 21 is in an open state, the second switch 22 is in a closed state, and the start and stop of the fan 10 is manually controlled by controlling the opening and closing state of the second switch 22. When the fan control device is in automatic control mode, the fifth terminal 31 and the sixth terminal 32 are connected, so that the first node 11 and the second node 12 are conductive, thereby starting the fan 10. When the started fan 10 needs to be stopped, the fifth terminal 31 and the sixth terminal 32 are disconnected, thereby stopping the fan 10. When the fan control device is in manual control mode, the first switch 21 is open and the second switch 22 is closed, so that the first node 11 and the second node 12 are conductive, thereby starting the fan 10. When the first switch 21 is open and the second switch 22 is open, the fan 10 is stopped.

[0049] In view of this, this embodiment provides manual and automatic linkage control of the start and stop of the fan 10. In the automatic control mode, the connection between the fifth terminal 31 and the sixth terminal 32 is controlled, thereby controlling the connection between the first node 11 and the second node 12, achieving automatic control of the start and stop of the fan 10. In the manual control mode, the connection between the first node 11 and the second node 12 is controlled by manually opening the first switch 21 and opening the second switch 22, thereby controlling the connection between the first node 11 and the second node 12, achieving manual control of the start and stop of the fan 10. This embodiment uses manual and automatic linkage to control the start and stop of the fan 10, thereby enabling timely discharge of combustible gases generated within the battery box, preventing the accumulation of combustible gases and increasing the risk of fire or explosion. This manual and automatic linkage control mode provides the operator with a backup control method. If the automatic control mode experiences an abnormality or failure, the operator can switch to manual control mode and manually operate the second switch 22 to control the start and stop of the fan 10. This prevents serious consequences and ensures the safe operation of the fan 10. The operator can switch the control mode at any time as needed to adapt to different situations and needs. This embodiment ensures the controllability and safety of the wind turbine 10 and provides the operator with more operating options to cope with various situations.

[0050] In some embodiments, the automatic switching unit 30 includes a fifth switch 39 , which is connected to the fifth terminal 31 and the sixth terminal 32 , respectively; and a control terminal of the fifth switch 39 is signal-connected to a controller 40 of the energy storage system.

[0051] It should be noted that the fifth switch 39 is used to control the connection state between the fifth end 31 and the sixth end 32. When the fifth switch 39 is closed, the fifth end 31 is connected to the sixth end 32. When the fifth switch 39 is open, the fifth end 31 is disconnected from the sixth end 32. The controller 40 controls the fifth switch 39 to be open (e.g., Figure 3 shown).

[0052] Specifically, this embodiment provides manual and automatic linkage control of the start and stop of the fan 10. The controller 40 controls the on / off state of the fifth switch 39 to control the connection state between the fifth terminal 31 and the sixth terminal 32, thereby achieving automatic control of the start and stop of the fan 10. Manual control of the start and stop of the fan 10 is achieved by manually controlling the opening of the first switch 21 and the opening and closing of the second switch 22. When the fan control device is in automatic control mode, the second switch 22 is open, the first switch 21 is closed, and the fifth terminal 31 is connected to the second node 12. The controller 40 controls the closing of the fifth switch 39 to achieve automatic control of the start and stop of the fan 10. When the fan control device is in manual control mode, the first switch 21 and the fifth switch 39 are open, and the second switch 22 is closed. Manual control of the start and stop of the fan 10 is achieved by manually controlling the on / off state of the second switch 22. When the fan control device is in automatic control mode, the controller 40 controls the fifth switch 39 to close, thereby connecting the first node 11 and the second node 12, thereby starting the fan 10. When it is necessary to stop the already started fan 10, the controller 40 controls the fifth switch 39 to open, thereby stopping the fan 10. When the fan control device is in manual control mode, the first switch 21 and the fifth switch 39 are open, and the second switch 22 is manually closed, thereby connecting the first node 11 and the second node 12, thereby starting the fan 10. When it is necessary to stop the already started fan 10, the second switch 22 is manually opened, thereby stopping the fan 10.

[0053] In view of this, this embodiment provides manual and automatic linkage control of the start and stop of the fan 10. In the automatic control mode, the controller 40 controls the on / off state of the fifth switch 39, thereby controlling the connection state between the first node 11 and the second node 12, achieving automatic control of the start and stop of the fan 10. In the manual control mode, the first switch 21 is manually opened, and the second switch 22 is manually opened and closed, thereby controlling the connection state between the first node 11 and the second node 12, achieving manual control of the start and stop of the fan 10. This embodiment uses manual and automatic linkage to control the start and stop of the fan 10, thereby enabling timely discharge of combustible gases generated within the battery box, preventing the accumulation of combustible gases and increasing the risk of fire or explosion. This manual and automatic linkage control mode provides the operator with a backup control method. If the automatic control mode experiences an abnormality or failure, the operator can switch to manual control mode and manually control the start and stop of the fan 10 by operating the second switch 22. This prevents serious consequences and ensures the safe operation of the fan 10. The operator can switch the control mode at any time as needed to adapt to different situations and needs. This embodiment ensures the controllability and safety of the wind turbine 10 and provides the operator with more operating options to cope with various situations.

[0054] In some embodiments, the automatic switching unit 30 includes a first on module 33 and a second off module 36. The first on module 33 includes a first common terminal 34 and a third switch 35. The fifth terminal 31 is provided on the first on module 33, and the third switch 35 is connected to the first common terminal 34 and the fifth terminal 31, respectively. The second off module 36 includes a second common terminal 37 and a fourth switch 38. The second common terminal 37 is connected to the first common terminal 34. The sixth terminal 32 is provided on the second off module 36, and the fourth switch 38 is connected to the second common terminal 37 and the sixth terminal 32, respectively. The control terminals of the third switch 35 and the fourth switch 38 are both signal-connected to the controller 40 of the energy storage system.

[0055] It should be noted that when the first switch 21 is closed, the fifth terminal 31 is connected to the second node 12. When the third switch 35 is closed, the first common terminal 34 is connected to the fifth terminal 31. When the fourth switch 38 is closed, the second common terminal 37 is connected to the sixth terminal 32. The controller 40 controls the opening and closing of the third switch 35 and the fourth switch 38 (as shown in FIG. Figure 4 shown).

[0056] Specifically, this embodiment implements manual and automatic linkage control of the start and stop of the fan 10. The controller 40 controls the on and off states of the third and fourth switches 35 and 38, thereby achieving automatic control of the start and stop of the fan 10. Manual control of the start and stop of the fan 10 is achieved by manually opening the first switch 21 and manually opening and closing the second switch 22.

[0057] When the fan control device is in automatic control mode, the second switch 22 and the third switch 35 are open, and the first switch 21 and the fourth switch 38 are closed. The controller 40 controls the opening and closing of the third switch 35 to automatically control the start and stop of the fan 10. When the fan control device is in manual control mode, the first switch 21 and the third switch 35 are open, and the second switch 22 and the fourth switch 38 are closed. Manual control of the start and stop of the fan 10 is achieved by manually controlling the opening and closing of the second switch 22. When the fan control device is in automatic control mode, the controller 40 controls the third switch 35 to close, thereby connecting the first node 11 and the second node 12, thereby starting the fan 10. When it is necessary to stop the already started fan 10, the third switch 35 is controlled to open, thereby stopping the fan 10. When the fan control device is in manual control mode, the first switch 21 and the third switch 35 are in the open state, and the second switch 22 and the fourth switch 38 are in the closed state, then the first node 11 and the second node 12 are connected, so that the fan 10 starts; when it is necessary to control the started fan 10 to stop, the second switch 22 is manually controlled to open, so that the fan 10 can be stopped.

[0058] Alternatively, when the fan control device is in automatic control mode, the second switch 22 and the fourth switch 38 are open, and the first switch 21 and the third switch 35 are closed. The controller 40 controls the opening and closing of the fourth switch 38 to achieve automatic control of the start and stop of the fan 10. When the fan control device is in manual control mode, the first switch 21 and the fourth switch 38 are open, and the second switch 22 and the third switch 35 are closed. Manual control of the start and stop of the fan 10 is achieved by manually controlling the opening and closing of the second switch 22. When the fan control device is in automatic control mode, the controller 40 controls the fourth switch 38 to close, thereby connecting the first node 11 and the second node 12, thereby starting the fan 10. When it is necessary to stop the started fan 10, the fourth switch 38 is controlled to open, thereby stopping the fan 10. When the fan control device is in manual control mode, the first switch 21 and the fourth switch 38 are in the open state, and the second switch 22 and the third switch 35 are in the closed state, then the first node 11 and the second node 12 are connected, so that the fan 10 starts; when it is necessary to control the started fan 10 to stop, the second switch 22 is manually controlled to open, so that the fan 10 can be stopped.

[0059] In view of this, this embodiment provides manual and automatic linkage control of the start and stop of the fan 10. In automatic control mode, the third switch 35 is open and the fourth switch 38 is closed in a standby state. The controller 40 controls the opening and closing of the third switch 35, thereby controlling the connection between the first node 11 and the second node 12, achieving automatic control of the start and stop of the fan 10. In manual control mode, the first switch 21 is opened and the second switch 22 is opened and closed, thereby controlling the connection between the first node 11 and the second node 12, achieving manual control of the start and stop of the fan 10. This embodiment sets the third switch 35 to be normally open and the fourth switch 38 to be normally closed, and then controls the opening and closing of the third switch 35 to control the start and stop of the fan 10. This embodiment is more practical and has wider applicability. Furthermore, this embodiment provides manual and automatic linkage control of the start and stop of the fan 10, thereby enabling the timely discharge of combustible gases generated within the battery box to prevent the accumulation of combustible gases, which could increase the risk of fire or explosion. This manual and automatic linkage control mode provides the operator with a backup control method. When an abnormality or failure occurs in the automatic control mode, the operator can switch to manual control mode, manually opening the first switch 21 and controlling the on / off state of the second switch 22 to control the start and stop of the fan 10. This can prevent serious consequences and ensure the safe operation of the fan 10. The operator can switch control modes at any time as needed to adapt to different situations and needs. This embodiment ensures the controllability and safety of the fan 10 and provides the operator with more operating options to deal with various situations.

[0060] In some embodiments, see Figure 3 and Figure 4 , Figure 3 A control logic diagram of each switch provided by the controller in the embodiment of the present application, Figure 4 Another control logic diagram of the controller for each switch provided in an embodiment of the present application: The conversion unit 20 further includes a sixth switch 23 , which is connected to two sampling terminals of the controller 40 , and is configured to open and close synchronously with the first switch 21 .

[0061] It should be noted that there is a signal connection between the sixth switch 23 and the controller 40. When the first switch 21 is closed, the sixth switch 23 is closed; when the first switch 21 is open, the sixth switch 23 is open. Through this synchronous opening and closing method, the sixth switch 23 can monitor the opening and closing state of the first switch 21, thereby reflecting whether the automatic control mode is operating normally. Specifically, when the sixth switch 23 is open, it means that the first switch 21 is in the open state, which means that there is an abnormality in the automatic control mode. At this time, the controller 40 will issue a warning to the operator, reminding him to pay attention and take corresponding measures. On the contrary, when the sixth switch 23 is closed, it means that the first switch 21 is in the closed state, which indicates that the automatic control mode is operating normally.

[0062] In view of this, in this embodiment, by synchronously opening and closing the sixth switch 23 and the first switch 21, the controller 40 can monitor the status of the automatic control mode in real time. This monitoring mechanism can promptly feedback the status of the automatic control mode to the operator, allowing them to quickly detect and address any abnormalities. This embodiment improves the reliability and safety of the wind turbine control device and provides operators with better control and management methods.

[0063] In some embodiments, see Figure 5 , Figure 5 This is a schematic diagram of the structure of a conversion unit provided in an embodiment of the present application. The conversion unit 20 includes a body 24 and a manual control unit 25 connected to the body 24. A first switch 21 and a second switch 22 are both provided on the body 24. The manual control unit 25 is configured to be movable relative to the body 24 between a first position 26, a second position 27, and a third position 28. When the manual control unit 25 is in the first position 26, the first switch 21 is closed and the second switch 22 is open. When the manual control unit 25 is in the second position 27, the first switch 21 is open and the second switch 22 is closed. When the manual control unit 25 is in the third position 28, both the first switch 21 and the second switch 22 are open.

[0064] It should be noted that the manual control unit 25 can be a knob that moves relative to the body 24 between a first position 26, a second position 27, and a third position 28. Specifically, the knob rotates relative to the body 24 between the first position 26, the second position 27, and the third position 28. When the manual control unit 25 is rotated to the first position 26, the first switch 21 is closed and the second switch 22 is open, placing the fan control device in automatic control mode. In this mode, the controller 40 controls the third switch 35 to close and the fourth switch 38 to open, or vice versa, placing the fan control device in standby mode for automatic control mode. When the manual control unit 25 is rotated to the second position 27, the first switch 21 is open and the second switch 22 is closed, placing the fan control device in manual control mode. In this mode, the second switch 22 is closed, connecting the first node 11 and the second node 12, and the fan 10 starts operating. When the manual control unit 25 is rotated to the third position 28, both the first switch 21 and the second switch 22 are open, placing the fan control device in stop mode. In this mode, the second switch 22 is open, the first node 11 and the second node 12 are disconnected, and the wind turbine 10 is stopped. The presence of the stop mode allows operators to quickly stop the wind turbine when necessary to respond to an emergency or perform maintenance. Specifically, when the manual control unit 25 is moved to the first position 26, the wind turbine control device is in automatic control mode. When the manual control unit 25 is moved to the second position 27, the wind turbine control device is in the manual control mode (on mode). When the manual control unit 25 is moved to the third position 28, the wind turbine control device is in the manual control mode (off mode).

[0065] In view of this, in this embodiment, the fan control device realizes switching between the automatic control mode, the on mode of the manual control mode, and the off mode of the manual control mode through the conversion unit 20 to meet different needs and situations. The existence of the conversion unit 20 makes the fan control device more flexible and reliable. The operator can select the appropriate control mode as needed to adapt to different work requirements and situations. Such a switching function makes the control of the fan 10 more convenient and controllable, and improves the convenience and safety of operation. This embodiment provides more operating options, making the control of the fan 10 more convenient and controllable.

[0066] In some embodiments, the manual control portion 25 is located at the first position 26 , and the fifth end 31 is connected to the sixth end 32 , so that the fan 10 is turned on.

[0067] It should be noted that when the connection between the fifth terminal 31 and the sixth terminal 32 is controlled by the fifth switch 39, the fan 10 is turned on by closing the fifth switch 39. When the manual control unit 25 is in the first position 26, the first switch 21 is closed and the second switch 22 is open, and the fan control device is in the standby state of the automatic control mode. In this standby state, the controller 40 controls the fifth switch 39 to close, thereby connecting the fifth terminal 31 and the sixth terminal 32 and turning on the fan 10.

[0068] It should be noted that when the connection between the fifth terminal 31 and the sixth terminal 32 is controlled by the third switch 35 and the fourth switch 38, the fan 10 is turned on by closing the third switch 35 and the fourth switch 38. When the manual control unit 25 is in the first position 26, the first switch 21 is closed and the second switch 22 is open, and the fan control device is in the standby state of the automatic control mode. At this time, the controller 40 controls the third switch 35 to open and the fourth switch 38 to close. In this standby state, the controller 40 controls the third switch 35 to close, thereby connecting the fifth terminal 31 and the sixth terminal 32 and turning on the fan 10.

[0069] In some embodiments, when the manual control portion 25 is located at the first position 26 , the fifth end 31 and the sixth end 32 are not connected, so that the fan 10 is turned off.

[0070] It should be noted that when the connection between the fifth terminal 31 and the sixth terminal 32 is controlled by the fifth switch 39, the fan 10 is stopped by opening the fifth switch 39. When the fan 10 is on, the fifth terminal 31 and the sixth terminal 32 are disconnected by controlling the fifth switch 39 to shut down the fan 10.

[0071] It should be noted that when the connection between the fifth terminal 31 and the sixth terminal 32 is controlled by the third switch 35 and the fourth switch 38, the fan 10 is turned on by closing the third switch 35 and the fourth switch 38. When the fan 10 is already on, the controller 40 controls the fourth switch 38 to open, thereby disconnecting the fifth terminal 31 from the sixth terminal 32, thereby turning off the fan 10.

[0072] In view of this, the present embodiment adopts such a design that the fan control device can realize the start and stop control of the fan 10 in the automatic control mode. The operator only needs to place the manual control part 25 in the first position 26, and the controller 40 will control the on and off state of the fifth switch 39 or the on and off state of the third switch 35 and the fourth switch 38 as needed, thereby realizing the start and stop of the fan 10. In other words, the present embodiment provides a more convenient and reliable control method for the fan 10. The operator can switch the fan control device to the automatic control mode through simple operations, and start or stop the operation of the fan 10 as needed. Such a control method improves the flexibility and operability of the fan control device, making it more adaptable to different work needs and scenarios.

[0073] In some embodiments, the conversion unit 20 further includes a first redundant switch 50 connected in parallel with the first switch 21 ; and / or the wind turbine control device further includes a second redundant switch 60 connected in parallel with the second switch 22 .

[0074] It should be noted that when the first switch 21 cannot be used normally, the first redundant switch 50 can be used to replace the first switch 21 to perform the corresponding operation. The first redundant switch 50 is connected in parallel with the first switch 21. When the first switch 21 cannot be closed or opened normally, the first redundant switch 50 can take over its function to ensure the normal operation of the fan control device. When the second switch 22 cannot be used normally, the second redundant switch 60 can be used to replace the second switch 22 to perform the corresponding operation. The second redundant switch 60 is connected in parallel with the second switch 22. When the second switch 22 cannot be closed or opened normally, the second redundant switch 60 can serve as a backup to ensure the normal operation of the fan control device. Specifically, multiple second redundant switches 60 can be provided. When two second redundant switches 60 are provided, both second redundant switches 60 are connected in parallel with the second switch 22.

[0075] In light of this, this embodiment introduces a first redundant switch 50 and a second redundant switch 60 to improve the reliability and fault tolerance of the wind turbine control device. Even if the first switch 21 and / or the second switch 22 malfunction, the operator can still perform the same operation using the corresponding redundant switch. This design ensures the reliability and stability of the wind turbine control device in the event of failures or abnormalities.

[0076] In some embodiments, see Figure 1 、 Figure 2 and Figure 6 , Figure 1 This is a schematic diagram of the overall structure of the fan control device provided in an embodiment of the present application. Figure 2 Another overall structural diagram of the fan control device provided in an embodiment of the present application is shown. Figure 6This is a schematic diagram of the on-off status of each switch in the conversion unit under various control modes provided in an embodiment of the present application. This embodiment includes one first redundant switch 50 and two second redundant switches 60, designated as second redundant switch a and second redundant switch b, respectively. When the manual control unit 25 is moved to the first position 26, the first switch 21, the sixth switch 23, and the first redundant switch 50 are all closed, while the second switch 22, the second redundant switch a, and the second redundant switch b are all open. When the manual control unit 25 is moved to the second position 27, the first switch 21, the sixth switch 23, and the first redundant switch 50 are all open, while the second switch 22, the second redundant switch a, and the second redundant switch b are all closed. When the manual control unit 25 is moved to the third position 28, the first switch 21, the sixth switch 23, the first redundant switch 50, the second switch 22, the second redundant switch a, and the second redundant switch b are all open. This embodiment provides a specific implementation and details the on-off status of each switch in the conversion unit under various control modes.

[0077] Accordingly, the battery pack provided in the embodiment of the present application includes any of the above-mentioned fan control devices. Therefore, the battery pack can have all the technical features and beneficial effects of the above-mentioned fan control devices, which will not be described in detail here.

[0078] Accordingly, an embodiment of the present application provides an energy storage system, which includes the wind turbine control device of any one of the above embodiments, or includes the battery pack of the above embodiments, and thus can have all the technical features and technical effects of the above-mentioned wind turbine control device or battery pack, which will not be repeated here.

[0079] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] The above is a detailed introduction to the wind turbine control device, battery box and energy storage system provided in the embodiments of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A fan control device, characterized in that: Used for controlling a fan (10), the fan (10) comprising a first node (11) and a second node (12), the fan control device comprising: A conversion unit (20) comprises a first switch (21) and a second switch (22), wherein the first switch (21) comprises a first end (211) and a second end (212), wherein the second end (212) is connected to the second node (12); and the second switch (22) comprises a third end (221) and a fourth end (222), wherein the third end (221) is connected to the second node (12), and the fourth end (222) is connected to the first node (11). The automatic switching unit (30) comprises a fifth end (31) and a sixth end (32), wherein the fifth end (31) and the sixth end (32) are connected via a switch, the fifth end (31) is connected to the first end (211), and the sixth end (32) is connected to the fourth end (222).

2. The fan control device according to claim 1, characterized in that: The automatic switching unit (30) comprises: A first switch module (33) includes a first common terminal (34) and a third switch (35), wherein the fifth terminal (31) is provided on the first switch module (33), and two ends of the third switch (35) are respectively connected to the first common terminal (34) and the fifth terminal (31); A second switch module (36) includes a second common terminal (37) and a fourth switch (38), wherein the second common terminal (37) is connected to the first common terminal (34), the sixth terminal (32) is provided on the second switch module (36), and two ends of the fourth switch (38) are respectively connected to the second common terminal (37) and the sixth terminal (32); The control ends of the third switch (35) and the fourth switch (38) are both signal-connected to the controller (40).

3. The fan control device according to claim 1, characterized in that: The automatic switching unit (30) includes a fifth switch (39), and the fifth switch (39) is connected to the fifth end (31) and the sixth end (32) respectively; The control end of the fifth switch (39) is signal-connected to the controller (40).

4. The fan control device according to any one of claims 1 to 3, characterized in that: The conversion unit (20) further includes a sixth switch (23), two ends of the sixth switch (23) are respectively connected to two sampling ends of the controller (40), and the sixth switch (23) is configured to be opened and closed synchronously with the first switch (21).

5. The fan control device according to any one of claims 1 to 3, characterized in that: The conversion unit (20) comprises a body (24) and a manual control portion (25) connected to the body (24); the first switch (21) and the second switch (22) are both provided on the body (24); and the manual control portion (25) is configured to move between a first position (26), a second position (27), and a third position (28) relative to the body (24); The manual control part (25) is located at the first position (26), the first switch (21) is closed, and the second switch (22) is open; The manual control part (25) is located at the second position (27), the first switch (21) is open, and the second switch (22) is closed; The manual control part (25) is located at the third position (28), and the first switch (21) and the second switch (22) are both turned on.

6. The fan control device according to claim 5, characterized in that: The manual control portion (25) is located at the first position (26), and the fifth end (31) is connected to the sixth end (32), so that the fan (10) is turned on.

7. The fan control device according to claim 5, characterized in that: The manual control part (25) is located at the first position (26), and the fifth end (31) and the sixth end (32) are not connected, so that the fan (10) is turned off.

8. The fan control device according to claim 1, characterized in that: The conversion unit (20) further includes a first redundant switch (50), the first redundant switch (50) being connected in parallel with the first switch (21); and / or the fan control device further includes a second redundant switch (60), the second redundant switch (60) being connected in parallel with the second switch (22).

9. A battery box, characterized in that: The battery box includes the wind turbine control device according to any one of claims 1 to 8.

10. An energy storage system, characterized in that: The energy storage system includes the wind turbine control device according to any one of claims 1 to 8, or includes the battery box according to claim 9.

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