Energy storage system, control method and control device thereof and readable storage medium

Abstract

The invention provides an energy storage system and a control method and device thereof, and a readable storage medium. The energy storage system comprises an energy storage device; the inverter is connected with the energy storage equipment, and the inverter is used for being connected to a power supply; the activation signal circuit is connected to the inverter, and the activation signal circuit is used for generating an activation signal under the condition that the inverter is connected to a power supply; and the controller is connected to the inverter and the activation signal circuit, and the controller is used for controlling the inverter to transmit the electric energy of the power supply to the energy storage equipment under the condition that the activation signal is received. According to the energy storage system provided by the invention, automatic charging of the energy storage equipment can be realized under the condition that the inverter is connected to the power supply, and the convenience in the charging process of the energy storage equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to an energy storage system and a control method, a control device and a readable storage medium thereof. Background Art

[0002] In the related art, the energy storage battery will charge and discharge the internal battery during the working process according to the actual application scenario. When the battery is discharged, that is, the power in the battery is insufficient and needs to be charged, most products require the user to manually press a button to start charging, which causes great inconvenience to the user. Summary of the invention

[0003] The present invention aims to at least solve the technical problem in the prior art that when charging an energy storage battery, manual buttons need to be pressed to start charging, resulting in inconvenient operation.

[0004] To this end, a first aspect of the present invention provides an energy storage system.

[0005] A second aspect of the present invention provides a control method for an energy storage system.

[0006] A third aspect of the present invention provides a control device for an energy storage system.

[0007] A fourth aspect of the present invention provides a readable storage medium.

[0008] The present invention provides an energy storage system, comprising: an energy storage device; an inverter connected to the energy storage device, the inverter being used to be connected to a power source; an activation signal circuit connected to the inverter, the activation signal circuit being used to generate an activation signal when the inverter is connected to the power source; and a controller connected to the inverter and the activation signal circuit, the controller being used to control the inverter to transmit the electric energy provided by the power source to the energy storage device when receiving the activation signal.

[0009] The energy storage system provided by the present invention includes an energy storage device and an inverter, wherein the energy storage device is used to store electric energy to supply power to electric devices. When the energy storage device is discharged, that is, when the electric energy stored in the energy storage device is insufficient, it needs to be charged. Specifically, during the charging process, the electric energy provided by the power supply needs to be processed by the inverter, and then the electric energy is transmitted to the energy storage device.

[0010] Further, the energy storage system further includes an activation signal circuit and a controller, wherein the activation signal circuit is arranged in the inverter, and when the inverter is connected to a power source, the activation signal circuit can generate an activation signal. Further, the activation signal circuit is also connected to the controller, and when the activation signal circuit generates an activation signal, the activation signal can be transmitted to the controller.

[0011] Furthermore, the controller is used to control the operation process of the energy storage system, such as controlling the power, current and other parameters of the charging and discharging process of the energy storage system to ensure the normal operation of the energy storage system. Specifically, when the controller receives the activation signal generated by the activation signal circuit, the controller can control the operation of the inverter so that the inverter converts the AC power provided by the power supply into DC power, or processes the DC power provided by the power supply, and then transmits it to the energy storage device to charge the energy storage device. In this way, when the inverter is connected to the power supply, it can automatically start charging the energy storage device without manual control through buttons, thereby improving the convenience of the energy storage device charging process.

[0012] It should be noted that an auxiliary source circuit is provided in the inverter, so when the inverter is connected to a power source, the auxiliary source circuit in the inverter can provide power to the control chip of the inverter so that the control chip of the inverter can start working. Further, when the control chip of the inverter is working, it can provide power to the activation signal circuit so that the activation signal circuit generates an activation signal, and then transmits the activation signal to the controller.

[0013] The energy storage system provided by the present invention sets an activation signal circuit and connects the activation signal circuit to the inverter and the controller respectively. When the energy storage device needs to be charged, the inverter is connected to the power supply, so that the activation signal circuit can generate an activation signal and transmit the activation signal to the controller. When the controller receives the activation signal, the inverter can be controlled to convert the power supply into direct current to charge the energy storage device, so that charging is automatically started when the inverter is connected to the power supply, thereby eliminating the need for manual control and improving the convenience of the energy storage device during charging.

[0014] In addition, the energy storage system in the above technical solution provided by the present invention may also have the following additional technical features:

[0015] In some technical schemes, optionally, the activation signal circuit includes: a signal generating device, a first end of the signal generating device is connected to an inverter, and a second end of the signal generating device is connected to a controller; wherein, when the inverter is connected to a power supply, the level state of the first end of the signal generating device is changed, and when the level state of the first end of the signal generating device is changed, the signal generating device generates an activation signal.

[0016] In some technical schemes, optionally, the signal generating device includes: a light emitting diode, one end of which is connected to the inverter, and the other end of which is grounded; a photosensitive switch, one end of which is connected to the first power supply interface, and the other end of which is connected to the controller; wherein, when the inverter is connected to the power supply, the light emitting diode emits light, and when the light emitting diode emits light, the photosensitive switch is turned on to generate an activation signal.

[0017] In some technical solutions, optionally, the photosensitive switch includes a photosensitive diode.

[0018] In some technical solutions, optionally, the signal generating device includes: a first coil, the first coil is connected to the inverter; and a second coil, the second coil is connected to the controller, and the second coil is coupled to the first coil.

[0019] In some technical schemes, optionally, the signal generating device includes: a transistor, a first end of the transistor is connected to the second power supply interface, a second end of the transistor is connected to the controller, and a control end of the transistor is connected to the inverter; wherein, when the inverter is connected to the power supply, the conduction state between the first end of the transistor and the second end of the transistor changes to generate an activation signal.

[0020] In some technical solutions, optionally, the activation signal circuit further includes: a current limiting resistor, which is arranged between the signal generating device and the controller.

[0021] According to a second aspect of the present invention, a control method for an energy storage system is proposed, which is used for an energy storage system such as any one of the above technical solutions. The control method includes: when the inverter is connected to a power supply, obtaining an activation signal from an activation signal circuit; when the activation signal is obtained, controlling the inverter to transmit the electric energy provided by the power supply to the energy storage device.

[0022] The control method of the energy storage system provided by the present invention connects the inverter to the power supply when the energy storage device needs to be charged, so that the activation signal circuit can generate an activation signal and transmit the activation signal to the controller. When the controller receives the activation signal, the inverter can be controlled to transmit the electric energy provided by the power supply to the energy storage device. Specifically, the alternating current provided by the power supply can be converted into direct current and provided to the energy storage device, or the direct current provided by the power supply can be processed and then transmitted to the energy storage device to charge the energy storage device, so as to realize automatic charging when the inverter is connected to the power supply, thereby eliminating the need for manual control and improving the convenience of the energy storage device during charging.

[0023] According to a third aspect of the present invention, a control device for an energy storage system is proposed, which is used for an energy storage system as in any one of the above technical solutions, and the control device includes: an acquisition unit, which is used to acquire an activation signal of an activation signal circuit when the inverter is connected to a power supply; and a control unit, which is used to control the inverter to transmit electrical energy provided by the power supply to the energy storage device when the activation signal is acquired.

[0024] The control device of the energy storage system provided by the present invention connects the inverter to the power supply when the energy storage device needs to be charged, so that the activation signal circuit can generate an activation signal and transmit the activation signal to the controller. When the controller receives the activation signal, the inverter can be controlled to transmit the electric energy provided by the power supply to the energy storage device. Specifically, the AC power provided by the power supply can be converted into DC power and provided to the energy storage device, or the DC power provided by the power supply can be processed and then transmitted to the energy storage device to charge the energy storage device, so as to realize automatic charging when the inverter is connected to the power supply, thereby eliminating the need for manual control and improving the convenience of the energy storage device during charging.

[0025] According to the fourth aspect of the present application, a readable storage medium is provided, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the control method of the energy storage system in any of the above technical solutions are implemented. Therefore, the readable storage medium has all the beneficial effects of the control method of the energy storage system in any of the above technical solutions, which will not be repeated here.

[0026] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 A structural block diagram of an energy storage system according to an embodiment of the present invention is shown;

[0029] Figure 2 Shows Figure 1 Circuit diagram of activation signal circuit;

[0030] Figure 3 A schematic diagram showing a flow chart of a method for controlling an energy storage system according to an embodiment of the present invention;

[0031] Figure 4 A structural block diagram of a control device for an energy storage system according to an embodiment of the present invention is shown.

[0032] in, Figure 1 , Figure 2 and Figure 4The corresponding relationship between the reference numerals and the component names is as follows:

[0033] 100 energy storage system, 102 energy storage device, 104 inverter, 106 activation signal circuit, 108 controller, 110 light emitting diode, 112 photosensitive switch, 114 current limiting resistor, 116 signal generating device, 200 power supply, 202 first power supply interface, 400 control device of energy storage system, 402 acquisition unit, 404 control unit. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0036] Refer to the following Figures 1 to 4 The energy storage system and its control method, control device and readable storage medium provided according to some embodiments of the present invention are described.

[0037] like Figure 1 As shown, the present invention provides an energy storage system 100, including: an energy storage device 102; an inverter 104, connected to the energy storage device 102, the inverter 104 is used to connect to a power source 200; an activation signal circuit 106, connected to the inverter 104, the activation signal circuit 106 is used to generate an activation signal when the inverter 104 is connected to the power source 200; a controller 108, connected to the inverter 104 and the activation signal circuit 106, the controller 108 is used to control the inverter 104 to transmit the electric energy of the power source 200 to the energy storage device 102 when receiving the activation signal.

[0038] The energy storage system 100 provided by the present invention includes an energy storage device 102 and an inverter 104, wherein the energy storage device 102 is used to store electrical energy to supply power to electrical devices. When the energy storage device 102 is discharged, that is, when the electrical energy stored in the energy storage device 102 is insufficient, it needs to be charged. Specifically, during the charging process, the electrical energy provided by the power supply 200 needs to be processed by the inverter 104, and then the electrical energy is transmitted to the energy storage device 102.

[0039] For example, when the power source 200 is AC power provided by the power grid, the inverter 104 can convert the AC power into DC power that can be stored in the energy storage device 102. That is, during the charging process, the AC power provided by the power grid is connected to the power grid through the inverter 104, and the DC power is converted to DC power, which is then transmitted to the energy storage device 102 to store the electric energy in the energy storage device 102. In addition, the power source 200 can also be a photovoltaic power generation system, and the inverter 104 can transmit the electric energy provided by the photovoltaic power generation system to the energy storage device 102 to charge the energy storage device 102.

[0040] Furthermore, the energy storage system 100 further includes an activation signal circuit 106 and a controller 108, wherein the activation signal circuit 106 is disposed in the inverter 104, and the activation signal circuit 106 can generate an activation signal when the inverter 104 is connected to the power source 200. Furthermore, the activation signal circuit 106 is also connected to the controller 108, and when the activation signal circuit 106 generates an activation signal, the activation signal can be transmitted to the controller 108.

[0041] Furthermore, the controller 108 is used to control the operation process of the energy storage system 100, such as controlling the power, current and other parameters of the charging and discharging process of the energy storage system 100, to ensure the normal operation of the energy storage system 100. Specifically, when the controller 108 receives the activation signal generated by the activation signal circuit 106, the controller 108 can control the operation of the inverter 104, so that the inverter 104 converts the AC power provided by the power supply into DC power, or processes the DC power provided by the power supply 200, and then transmits it to the energy storage device 102, so as to charge the energy storage device 102. In this way, when the inverter 104 is connected to the power supply 200, it can automatically start charging the energy storage device 102, without manual control through buttons, thereby improving the convenience of the energy storage device 102 during charging.

[0042] It should be noted that an auxiliary source circuit is provided in the inverter 104. Therefore, when the inverter 104 is connected to the power source 200, the auxiliary source circuit in the inverter 104 can provide the power source 200 to the control chip of the inverter 104, so that the control chip of the inverter 104 can start to work. Further, when the control chip of the inverter 104 is working, it can provide electric energy to the activation signal circuit 106, so that the activation signal circuit 106 generates an activation signal, and then transmits the activation signal to the controller 108.

[0043] The energy storage system 100 provided by the present invention is provided with an activation signal circuit 106, and the activation signal circuit 106 is connected to the inverter 104 and the controller 108 respectively. When the energy storage device 102 needs to be charged, the inverter 104 is connected to the power supply 200, so that the activation signal circuit 106 can generate an activation signal and transmit the activation signal to the controller 108. When the controller 108 receives the activation signal, the inverter 104 can be controlled to convert the AC power provided by the power supply 200 into DC power to charge the energy storage device 102, so that charging is automatically started when the inverter 104 is connected to the power supply 200, thereby eliminating the need for manual control and improving the convenience of the energy storage device 102 during charging.

[0044] In some embodiments, optionally, Figure 2 As shown, the activation signal circuit 106 includes: a signal generating device 116, wherein the first end of the signal generating device 116 is connected to the inverter 104, and the second end of the signal generating device 116 is connected to the controller 108; wherein, when the inverter 104 is connected to the power supply 200, the level state of the first end of the signal generating device 116 is converted, and when the level state of the first end of the signal generating device 116 is converted, the signal generating device 116 generates an activation signal.

[0045] In the embodiment of the present application, the activation signal circuit 106 includes a signal generating device 116, a first end of the signal generating device 116 is connected to the inverter 104, and a second end of the signal generating device 116 is connected to the controller 108. Through the signal generating device 116, when the inverter 104 is connected to the power source 200, an activation signal can be generated and transmitted to the controller 108.

[0046] Specifically, the first end of the signal generating device 116 is connected to the inverter 104. When the inverter 104 is connected to the power source 200, the inverter 104 supplies power to the signal generating device 116. That is, when the inverter 104 is connected to the power source 200, the level state of the first end of the signal generating device 116 connected to the inverter 104 changes, thereby enabling the signal generating device 116 to generate an activation signal. Further, when the signal generating device 116 generates an activation signal, the activation signal can be transmitted to the controller 108 through the second end connected to the controller 108, so that the controller 108 can receive the activation signal to control the inverter 104.

[0047] In some embodiments, optionally, Figure 2As shown, the signal generating device 116 includes: a light emitting diode 110, one end of which is connected to the inverter 104, and the other end of the light emitting diode 110 is grounded; a photosensitive switch 112, one end of which is connected to the first power supply interface 202, and the other end of the photosensitive switch 112 is connected to the controller 108; wherein, when the inverter 104 is connected to the power supply 200, the light emitting diode 110 emits light, and when the light emitting diode 110 emits light, the photosensitive switch 112 is turned on to generate an activation signal.

[0048] In this embodiment, the signal generating device 116 may include a light emitting diode 110 and a photosensitive switch 112, wherein a first end of the light emitting diode 110 is connected to the inverter 104, and a second end of the light emitting diode 110 is grounded. It is understood that when the inverter 104 is connected to the power source 200, the light emitting diode 110 may be powered to conduct between the two ends of the light emitting diode 110, thereby causing the light emitting diode 110 to emit light.

[0049] Further, one end of the photosensitive switch 112 is connected to the first power supply interface 202. Specifically, the first power supply interface 202 can be a 5V power supply for providing a high-level signal. The other end of the photosensitive switch 112 is connected to the controller 108. It can be understood that the photosensitive switch 112 changes its own conduction state according to the light conditions. Therefore, when the inverter 104 is connected to the power supply 200, the light-emitting diode 110 emits light, and the photosensitive switch 112 receives the light emitted by the light-emitting diode 110. Both ends of the photosensitive switch 112 are turned on, and then under the power supply of the first power supply interface 202, a high-level signal can be transmitted to the controller 108. The signal received by the controller 108 is converted from a low level to a high level, that is, at this time, the controller 108 receives an activation signal, and then the controller 108 can control the inverter 104 to operate to charge the energy storage device 102.

[0050] In addition, it should be noted that, by providing the light-emitting diode 110 and the photosensitive switch 112, the current at both ends of the signal generating device 116 can be isolated, thereby avoiding the impact caused by the direct current passing between the inverter 104 and the controller 108 when the inverter 104 is connected to the power supply 200, thereby ensuring the safety of the energy storage system 100.

[0051] In some embodiments, the light sensitive switch 112 optionally includes a photodiode.

[0052] In this embodiment, the photosensitive switch 112 may include a photodiode. It is understandable that the photodiode can change its conduction state according to changes in lighting conditions, thereby changing the state of the level signal received by the controller 108, that is, generating an activation signal.

[0053] In some embodiments, optionally, the signal generating device 116 includes: a first coil, the first coil is connected to the inverter 104; and a second coil, the second coil is connected to the controller 108, and the second coil is coupled to the first coil.

[0054] In this embodiment, the signal generating device 116 can also generate an activation signal by means of coil coupling. Specifically, the signal generating device 116 may include a first coil and a second coil, wherein the first coil is connected to the inverter 104, the second coil is connected to the controller 108, and the first coil and the second coil are coupled.

[0055] Specifically, when the inverter 104 is connected to the power source 200, the inverter 104 can supply power to the first coil. When current passes through the first coil, a magnetic field is generated around the first coil according to the principle of electromagnetic induction. Accordingly, the second coil is coupled to the first coil. Therefore, the second coil can generate current under the action of the magnetic field generated by the first coil. Moreover, since the second coil is connected to the controller 108, when the controller 108 detects that the second coil generates current, it determines that an activation signal has been received. At this time, the controller 108 can control the inverter 104 to transmit electrical energy to the energy storage device 102 to charge the energy storage device 102.

[0056] In addition, it should be noted that, by setting the first coil and the second coil, the current isolation at both ends of the signal generating device 116 can also be achieved, thereby avoiding the impact caused by the direct current passing between the inverter 104 and the controller 108 when the inverter 104 is connected to the power supply 200, thereby ensuring the safety of the energy storage system 100.

[0057] In some embodiments, optionally, the signal generating device 116 includes: a transistor, a first end of the transistor is connected to the second power supply interface, a second end of the transistor is connected to the controller 108, and a control end of the transistor is connected to the inverter 104; wherein, when the inverter 104 is connected to the power supply 200, the conduction state between the first end of the transistor and the second end of the transistor changes to generate an activation signal.

[0058] In this embodiment, the signal generating device 116 may include a transistor. Specifically, the first end of the transistor is connected to a second power supply interface. Like the first power supply interface 202, the second power supply interface can also be a 5V power supply, so that the second power supply interface can provide a high-level signal. The second end of the transistor is connected to the controller 108, and the control end of the transistor is connected to the inverter 104.

[0059] It can be understood that when the level state of the control end of the transistor changes, the conduction state between the first end and the second end of the transistor also changes accordingly. In this way, when the inverter 104 is connected to the power supply 200, the level state of the control end of the transistor changes, thereby causing the conduction state between the first end and the second end of the transistor to change. At the same time, the second end of the transistor is connected to the controller 108. When the controller 108 detects that the level state of the second end of the transistor has changed, it can determine that the activation signal has been received. At this time, the controller 108 can control the inverter 104 to transmit electrical energy to the energy storage device 102 to charge the energy storage device 102.

[0060] In some embodiments, optionally, the activation signal circuit 106 further includes: a current limiting resistor 114 , which is disposed between the signal generating device 116 and the inverter 104 .

[0061] In this embodiment, the activation signal circuit 106 may further include a current limiting resistor 114. By setting the current limiting resistor 114, when the inverter 104 is connected to the power source 200, when current passes through the activation signal circuit 106, the current may be limited to avoid damage to the activation signal circuit 106 due to excessive current. Specifically, the current limiting resistor 114 may be set between the signal generating device 116 and the inverter 104.

[0062] In some embodiments of the present invention, Figure 3 As shown, a control method of an energy storage system is also proposed, which is used for an energy storage system as in any one of the above embodiments. The control method of the energy storage system includes:

[0063] Step 302: When the inverter is connected to a power source, obtaining an activation signal of an activation signal circuit;

[0064] Step 304: When the activation signal is obtained, the inverter is controlled to transmit the electric energy provided by the power supply to the energy storage device.

[0065] The control method of the energy storage system provided by the present invention connects the inverter to the power supply when the energy storage device needs to be charged, so that the activation signal circuit can generate an activation signal and transmit the activation signal to the controller. When the controller receives the activation signal, the inverter can be controlled to transmit the electric energy provided by the power supply to the energy storage device. Specifically, the alternating current provided by the power supply can be converted into direct current and provided to the energy storage device, or the direct current provided by the power supply can be processed and then transmitted to the energy storage device to charge the energy storage device, so as to realize automatic charging when the inverter is connected to the power supply, thereby eliminating the need for manual control and improving the convenience of the energy storage device during charging.

[0066] In some embodiments, optionally, the control method further includes: when the electric energy stored in the energy storage device is greater than or equal to a preset value, controlling the inverter to stop transmitting electric energy to the energy storage device.

[0067] In this embodiment, the controller can monitor the remaining power in the energy storage device in real time during the charging process of the energy storage device, that is, monitor the amount of electric energy stored in the energy storage device. Specifically, when the controller monitors that the electric energy stored in the energy storage device is greater than or equal to a preset value, the controller can control the inverter to stop supplying power to the energy storage device, thereby completing the charging process of the energy storage device.

[0068] Specifically, the controller may be a battery management system (BMS), through which the operation process of the energy storage device may be monitored and controlled to ensure stable operation of the energy storage device.

[0069] In some embodiments of the present invention, Figure 4 As shown, a control device 400 for an energy storage system is also proposed, which is used for an energy storage system 100 as any one of the above technical solutions. The control device 400 for the energy storage system includes: an acquisition unit 402, which is used to acquire an activation signal of an activation signal circuit 106 when the inverter 104 is connected to a power source 200; and a control unit 404, which is used to control the inverter 104 to transmit the electric energy provided by the power source 200 to the energy storage device 102 when the activation signal is acquired.

[0070] The control device of the energy storage system provided by the present invention connects the inverter 104 to the power supply 200 when the energy storage device 102 needs to be charged, so that the activation signal circuit 106 can generate an activation signal and transmit the activation signal to the controller 108. When the controller 108 receives the activation signal, the inverter 104 can be controlled to transmit the electric energy provided by the power supply 200 to the energy storage device 102. Specifically, the alternating current provided by the power supply 200 can be converted into direct current and provided to the energy storage device 102, or the direct current provided by the power supply 200 can be processed and then transmitted to the energy storage device 102 to charge the energy storage device 102, so as to realize automatic charging when the inverter 104 is connected to the power supply, thereby eliminating the need for manual control and improving the convenience of the energy storage device 102 during charging.

[0071] Furthermore, the control unit 404 is further configured to control the inverter 104 to stop transmitting electric energy to the energy storage device 102 when the electric energy stored in the energy storage device 102 is greater than or equal to a preset value.

[0072] In some embodiments of the present invention, a readable storage medium is also proposed, on which a program or instruction is stored, and when the program or instruction is executed by a processor, a control method for an energy storage system as in any of the above technical solutions is implemented. Therefore, the readable storage medium has all the beneficial effects of the control method for an energy storage system in any of the above technical solutions, which will not be described in detail here.

[0073] In some embodiments, the energy storage system 100 can be a household energy storage power supply device or a balcony photovoltaic energy storage system. Among them, the household energy storage power supply device is usually relatively large, its position is relatively fixed and cannot be moved after installation, the power capacity is relatively large, and the power provided is relatively large; while the balcony photovoltaic energy storage power supply device is relatively small and easy to carry and move, and can be moved according to the user's power demand, such as from the balcony to the garage or even outdoors, etc., the power capacity is relatively small, and the power provided is also relatively small.

[0074] In some embodiments, the energy storage system 100 may also be an outdoor portable energy storage device that can output AC power for outdoor use.

[0075] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] 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 have 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. An energy storage system, characterized in that: include: Energy storage equipment; An inverter connected to the energy storage device, the inverter being used to connect to a power source; an activation signal circuit connected to the inverter, the activation signal circuit being used to generate an activation signal when the inverter is connected to the power source; A controller is connected to the inverter and the activation signal circuit, and is used to control the inverter to transmit the electric energy provided by the power supply to the energy storage device when receiving the activation signal.

2. The energy storage system according to claim 1, characterized in that: The activation signal circuit comprises: A signal generating device, wherein a first end of the signal generating device is connected to the inverter, and a second end of the signal generating device is connected to the controller; Wherein, when the inverter is connected to the power supply, the level state of the first end of the signal generating device is converted, and when the level state of the first end of the signal generating device is converted, the signal generating device generates the activation signal.

3. The energy storage system according to claim 2, characterized in that: The signal generating device comprises: A light emitting diode, one end of which is connected to the inverter, and the other end of which is grounded; A photosensitive switch, one end of which is connected to the first power supply interface, and the other end of which is connected to the controller; Wherein, when the inverter is connected to the power source, the light emitting diode emits light, and when the light emitting diode emits light, the photosensitive switch is turned on to generate the activation signal.

4. The energy storage system according to claim 3, characterized in that: The photosensitive switch includes a photosensitive diode.

5. The energy storage system according to claim 2, characterized in that: The signal generating device comprises: a first coil connected to the inverter; A second coil is connected to the controller and is coupled to the first coil.

6. The energy storage system according to claim 2, characterized in that: The signal generating device comprises: A transistor, wherein a first end of the transistor is connected to the second power supply interface, a second end of the transistor is connected to the controller, and a control end of the transistor is connected to the inverter; Wherein, when the inverter is connected to the power supply, the conduction state between the first end of the transistor and the second end of the transistor changes to generate the activation signal.

7. The energy storage system according to claim 2, characterized in that: The activation signal circuit further includes: A current limiting resistor is arranged between the signal generating device and the inverter.

8. A control method for an energy storage system, used for the energy storage system according to any one of claims 1 to 7, characterized in that: The control method comprises: acquiring the activation signal of the activation signal circuit when the inverter is connected to a power source; When the activation signal is obtained, the inverter is controlled to transmit the electric energy provided by the power supply to the energy storage device.

9. The control method according to claim 8, characterized in that: Also includes: When the electric energy stored in the energy storage device is greater than or equal to a preset value, the inverter is controlled to stop transmitting electric energy to the energy storage device.

10. A control device for an energy storage system, used in the energy storage system according to any one of claims 1 to 7, characterized in that: The control device comprises: an acquisition unit, configured to acquire the activation signal of the activation signal circuit when the inverter is connected to a power source; A control unit is used to control the inverter to transmit the electric energy provided by the power supply to the energy storage device when the activation signal is obtained.

11. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to claim 8 or 9 are implemented.

Images