Energy storage system of communication base station

Abstract

The utility model provides a communication base station energy storage system which is provided with a wind and light power generation device, an energy storage device and a power environment monitoring device, the energy storage device comprises an energy storage battery pack, a charging and discharging device and a BMS battery management device, the BMS battery management device is in communication connection with the energy storage battery pack, and the BMS battery management device is in communication connection with the charging and discharging device. The energy storage battery pack is connected with the charging and discharging device, the energy storage battery pack comprises a plurality of single batteries, the single batteries are connected in series or in parallel, the single batteries are lithium iron phosphate batteries, the dynamic environment monitoring device is in communication connection with the wind-solar power generation device, the dynamic environment monitoring device is in communication connection with the energy storage device, and the energy storage device is in communication connection with the charging and discharging device. Therefore, remote monitoring and management of the system are achieved, operation and maintenance of the system are facilitated, reliability and stability of power supply of the system are improved, and operation risks of the system in the power supply process are reduced.

Description

Technical Field

[0001] The utility model relates to the field of communication energy storage, and in particular to a communication base station energy storage system. Background Art

[0002] With the continuous development of communication technology, telecommunication base stations have become an important part of the communication network, and their stable and reliable power supply is the prerequisite for ensuring the normal operation of the communication network. However, in some remote areas, such as the wild and mountain tops, the coverage of the mains electricity is limited, or the quality of the mains electricity is unstable, which is prone to power outages, voltage fluctuations and other problems, affecting the normal operation of the communication base station.

[0003] In the existing technology, most of the power supply and energy storage systems of communication base stations use diesel generators as backup power supply devices. However, diesel generators have high operating costs, loud noises, polluting emissions, and require regular maintenance, making them unsuitable for long-term use. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a communication base station energy storage system that can improve the power supply reliability and stability of the communication base station, while reducing the difficulty and cost of maintenance and reducing the pollution to the environment during the backup power supply of the communication base station.

[0005] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application proposes a communication base station energy storage system, comprising:

[0006] Wind and solar power generation device, which is used to generate electricity using light energy and wind energy;

[0007] Energy storage device, the energy storage device is used to store or release electric energy, the energy storage device includes an energy storage battery pack, a charging and discharging device and a BMS battery management device, the energy storage battery pack is used to store the electric energy generated by the wind and solar power generation device, the charging and discharging device is used to control the charging state and discharging state of the battery pack, the BMS battery management device is used to control and manage the energy storage battery pack, the BMS battery management device is communicated with the energy storage battery pack, the BMS battery management device is communicated with the charging and discharging device, and the energy storage battery pack is connected to the charging and discharging device; wherein the energy storage battery pack includes a plurality of battery cells, the plurality of battery cells are connected in series or in parallel, and the battery cells are lithium iron phosphate batteries;

[0008] The dynamic environment monitoring device is used to monitor and control the communication base station energy storage system. The dynamic environment monitoring device is communicated with the wind and solar power generation device, and the dynamic environment monitoring device is communicated with the energy storage device.

[0009] Furthermore, in some embodiments, the communication base station energy storage system also includes a plurality of base station loads, the base station loads are used to provide communication functions for the communication base station, and the base station loads are communicatively connected to the dynamic environment monitoring device.

[0010] Furthermore, in some embodiments, the communication base station energy storage system also includes a power distribution device, which is used to distribute the power distribution path of the communication base station energy storage system, the input end of the power distribution device is connected to the wind and solar power generation device, the output end of the power distribution device is respectively connected to multiple base station loads, and the input end of the power distribution device is connected to the energy storage device.

[0011] Furthermore, in some embodiments, the power distribution device includes an input switch, an output switch, a circuit breaker, an isolating switch and a fuse. The input switch is used as a path switch for the wind and solar power generation device to be input to the power distribution device, and the output switch is used as a path switch for the power distribution device to be output to the base station load. The circuit breaker, the isolating switch and the fuse are all used to protect the circuit of the communication base station energy storage system. The input switch and the output switch are connected in parallel, the output switch and the circuit breaker are connected in parallel, the circuit breaker and the isolating switch are connected in parallel, and the isolating switch and the fuse are connected in parallel.

[0012] Further, in some embodiments, the BMS battery management device includes a battery management unit, a battery balancing unit, a battery protection unit and a battery communication unit. The battery management unit is communicatively connected to the battery balancing unit, the battery management unit is communicatively connected to the battery protection unit, and the battery management unit is communicatively connected to the battery communication unit. The battery management unit is used to control the battery balancing unit, the battery protection unit and the battery communication unit. The battery balancing unit is used to perform balancing management on the energy storage battery pack, the battery protection unit is used to perform fault diagnosis on the energy storage battery pack, and the battery communication unit is used to transmit data to external components.

[0013] Further, in some embodiments, the output voltage of the energy storage battery pack is 48V.

[0014] Furthermore, in some embodiments, the communication base station energy storage system also includes an output switch, which is used as a connection switch between the energy storage device and the user equipment, the output switch is connected in parallel with the energy storage device, and the output switch is communicatively connected with the control machine.

[0015] Further, in some embodiments, the charge and discharge device includes a discharge switch, a charge switch, a charge diode and a discharge diode, the discharge switch and the charge switch are connected in series, the charge diode and the charge switch are connected in parallel, and the discharge diode and the discharge switch are connected in parallel.

[0016] Furthermore, in some embodiments, the wind-solar power generation device includes a wind turbine, a solar panel and a wind-solar controller. The wind turbine is used to generate electricity using wind energy, and the solar panel is used to generate electricity using light energy. The wind turbine is connected to the wind-solar controller, and the solar panel is connected to the wind-solar controller.

[0017] Furthermore, in some embodiments, the energy storage device also includes a current sensor, which is used to collect the magnitude and direction of the current signal corresponding to the energy storage battery pack. The current sensor is connected in series with the negative output terminal of the energy storage battery pack, and the current sensor is communicatively connected with the BMS battery management device.

[0018] Furthermore, in some embodiments, the energy storage device also includes a fuse, which is used as a protector for line short circuit and line overcurrent, and the fuse is connected in series between the positive input terminal of the energy storage battery pack and the charging and discharging device.

[0019] A communication base station energy storage system according to an embodiment of the utility model has at least the following beneficial effects: by providing a wind-solar power generation device, an energy storage device and a dynamic environment monitoring device, wherein the wind-solar power generation device is used to generate electricity using light energy and wind energy, thereby improving the power supply safety and environmental protection of the system and reducing the pollution of the system to the environment during the power generation process;

[0020] At the same time, the energy storage device is used to store or release electrical energy. The energy storage device includes an energy storage battery pack, a charging and discharging device and a BMS battery management device. The energy storage battery pack is used to store the electrical energy generated by the wind and solar power generation device. The charging and discharging device is used to control the charging and discharging state of the battery pack. The BMS battery management device is used to control and manage the energy storage battery pack. The BMS battery management device is communicated with the energy storage battery pack, the BMS battery management device is communicated with the charging and discharging device, the energy storage battery pack is connected to the charging and discharging device, the energy storage battery pack includes a plurality of battery cells, the plurality of battery cells are connected in series or in parallel, and the battery cells are lithium iron phosphate batteries; the dynamic environment monitoring device is used to monitor and control the communication base station energy storage system, the dynamic environment monitoring device is communicated with the wind and solar power generation device, and the dynamic environment monitoring device is communicated with the energy storage device, thereby realizing remote monitoring and management of the system, facilitating the operation and maintenance of the system, and improving the reliability and stability of the system power supply, and reducing the operation risk of the system during the power supply process.

[0021] Other features and advantages of the present invention will be described in the following description and will become apparent in part from the description. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0024] Figure 1 It is an overall structural diagram of a communication base station energy storage system provided by an embodiment of the utility model.

[0025] Figure numerals: wind and solar power generation device 100, wind turbine 110, solar panel 120, wind and solar controller 130, energy storage device 200, energy storage battery pack 210, charging and discharging device 220, discharge switch G1, charging switch G2, charging diode D2, discharge diode D1, BMS battery management device 230, current sensor 240, fuse 250, dynamic environment monitoring device 300, power distribution device 400, input switch 410, output switch 420, circuit breaker 430, isolation switch 440, fuse 450, base station load 500. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] With the continuous development of communication technology, telecommunication base stations have become an important part of the communication network, and their stable and reliable power supply is the prerequisite for ensuring the normal operation of the communication network. However, in some remote areas, such as the wild and mountain tops, the coverage of the mains electricity is limited, or the quality of the mains electricity is unstable, which is prone to power outages, voltage fluctuations and other problems, affecting the normal operation of the communication base station.

[0030] In the existing technology, most of the power supply and energy storage systems of communication base stations use diesel generators as backup power supply devices. However, diesel generators have high operating costs, loud noises, polluting emissions, and require regular maintenance, making them unsuitable for long-term use.

[0031] Based on this, the embodiment of the utility model provides a communication base station energy storage system, which is provided with a wind-solar power generation device, an energy storage device and a dynamic environment monitoring device, wherein the wind-solar power generation device is used to generate electricity using light energy and wind energy, thereby improving the power supply safety and environmental protection of the system and reducing the pollution of the system to the environment during the power generation process;

[0032] At the same time, the energy storage device is used to store or release electrical energy. The energy storage device includes an energy storage battery pack, a charging and discharging device and a BMS battery management device. The energy storage battery pack is used to store the electrical energy generated by the wind and solar power generation devices. The charging and discharging device is used to control the charging and discharging state of the battery pack. The BMS battery management device is used to control and manage the energy storage battery pack. The BMS battery management device is communicated with the energy storage battery pack, the BMS battery management device is communicated with the charging and discharging device, the energy storage battery pack is connected to the charging and discharging device, and the energy storage battery pack includes a plurality of battery cells, which are lithium iron phosphate batteries; the dynamic environment monitoring device is used to monitor and control the communication base station energy storage system, the dynamic environment monitoring device is communicated with the wind and solar power generation devices, and the dynamic environment monitoring device is communicated with the energy storage device, thereby realizing remote monitoring and management of the system, facilitating the operation and maintenance of the system, and improving the reliability and stability of the system power supply, and reducing the operation risk of the system during the power supply process.

[0033] Therefore, the embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0034] Reference Figure 1 As shown, Figure 11 is an overall structural diagram of a communication base station energy storage system provided by an embodiment of the utility model. The communication base station energy storage system includes a wind-solar power generation device 100, which is used to generate electricity using light energy and wind energy; an energy storage device 200, which is used to store or release electric energy. The energy storage device 200 includes an energy storage battery group 210, a charging and discharging device 220 and a BMS battery management device 230. The energy storage battery group 210 is used to store the electric energy generated by the wind-solar power generation device 100, and the charging and discharging device 220 is used to control the charging state and discharging state of the battery group. The MS battery management device 230 is used to control and manage the energy storage battery group 210. The BMS battery management device 230 is communicated with the energy storage battery group 210, and the BMS battery management device 230 is communicated with the charging and discharging device 220, and the energy storage battery group 210 is connected to the charging and discharging device 220; the dynamic environment monitoring device 300, the dynamic environment monitoring device 300 is used to monitor and control the communication base station energy storage system, the dynamic environment monitoring device 300 is communicated with the wind and solar power generation device 100, and the dynamic environment monitoring device 300 is communicated with the energy storage device 200.

[0035] The dynamic environment monitoring device 300 includes a communication module (not shown), and the communication interface between the dynamic environment monitoring device 300 and the wind-solar power generation device 100 is an RS485 interface, and the communication interface between the dynamic environment monitoring device 300 and the energy storage device 200 is an RS485 interface. The dynamic environment monitoring device 300 sends the monitoring and control data and signals to the remote management center through the communication module, thereby realizing remote monitoring and management of the communication base station energy storage system.

[0036] It should be noted that the energy storage battery pack 210 includes multiple battery cells (not marked), the output voltage of the energy storage battery pack 210 is 48V, and the multiple battery cells are connected in series or in parallel, thereby achieving the stability and sustainability of the energy storage battery pack 210. At the same time, the battery cells are lithium iron phosphate batteries as green energy, reducing environmental pollution.

[0037] At the same time, the communication base station energy storage system also includes a distribution device 400, which is used to distribute the distribution path of the communication base station energy storage system. The input end of the distribution device 400 is connected to the wind and solar power generation device 100, and the output end of the distribution device 400 is respectively connected to multiple base station loads 500. The input end of the distribution device 400 is connected to the energy storage device 200, thereby enabling the distribution and protection of the power supply of the energy storage device 200.

[0038] It should be noted that the distribution device 400 includes an input switch 410, an output switch 420, a circuit breaker 430, an isolating switch 440 and a fuse 450. The input switch 410 is used as a path switch for the wind and solar power generation device 100 to be input to the distribution device 400, and the output switch 420 is used as a path switch for the distribution device 400 to be output to the base station load 500. The circuit breaker 430, the isolating switch 440 and the fuse 450 are all used to protect the circuit of the communication base station energy storage system. The input switch 410 and the output switch 420 are connected in parallel, the output switch 420 and the circuit breaker 430 are connected in parallel, the circuit breaker 430 and the isolating switch 440 are connected in parallel, and the isolating switch 440 and the fuse 450 are connected in parallel, thereby being able to have overload, overvoltage, undervoltage, short circuit and other protection functions for the circuit connection of the communication base station energy storage system, thereby ensuring stable power supply to the base station load 500 and improving the safety of the operation of the communication base station.

[0039] Among them, the communication base station energy storage system also includes multiple base station loads 500, and the base station loads 500 are used to provide communication functions for the communication base station. The base station loads 500 are communicatively connected with the dynamic environment monitoring device 300.

[0040] Furthermore, the BMS battery management device 230 includes a battery management unit (not labeled), a battery balancing unit (not labeled), a battery protection unit (not labeled) and a battery communication unit (not labeled), the battery management unit and the battery balancing unit are communicatively connected, the battery management unit and the battery protection unit are communicatively connected, the battery management unit and the battery communication unit are communicatively connected, the battery management unit is used to control the battery balancing unit, the battery protection unit and the battery communication unit, the battery balancing unit is used to perform balancing management on the energy storage battery pack 210, the battery protection unit is used to perform fault diagnosis on the energy storage battery pack 210, and the battery communication unit is used to transmit data to external components.

[0041] It should be noted that the BMS battery management device 230 communicates with the wind-solar power generation device 100 and the base point load through the battery communication unit. The BMS battery management device 230 reads the voltage, current and other information of the wind-solar power generation device 100 in real time. At the same time, the BMS battery management device 230 collects the voltage, current, temperature, capacity, health status and other parameters of the energy storage battery group 210 in real time; then the BMS battery management device 230 intelligently controls the working state of the charging and discharging device 220 through balancing, pre-charging, current limiting, voltage limiting and other methods according to factors such as the state of the energy storage battery group 210, the output of the wind-solar power generation device 100 and the load demand of the base station load 500, thereby realizing the charging and discharging functions of the energy storage battery group 210, while ensuring the safe operation of the energy storage battery group 210 and extending the service life of the energy storage battery group 210.

[0042] In addition, the communication base station energy storage system also includes an output switch 420, which is used as a connection switch between the energy storage device 200 and the user equipment. The output switch 420 is connected in parallel with the energy storage device 200, and the output switch 420 is communicatively connected with the control machine.

[0043] At the same time, the charging and discharging device 220 includes a discharge switch G1, a charging switch G2, a charging diode D2 and a discharge diode D1. The discharge switch G1 and the charging switch G2 are connected in series, the charging diode D2 and the charging switch G2 are connected in parallel, and the discharge diode D1 and the discharge switch G1 are connected in parallel. Therefore, the charging function and the discharging function of the energy storage battery group 210 can be intelligently controlled in real time according to factors such as the state of the energy storage battery group 210, the output of the wind and solar power generation device 100, and the load demand of the base station load 500, thereby optimizing the use efficiency of the energy storage battery group 210 and improving the energy efficiency ratio of the communication base station energy storage system.

[0044] It should be noted that when the energy storage battery pack 210 is normally charged, the discharge switch G1 and the charge switch G2 are both in a closed state. When the energy storage battery pack 210 is fully charged, the charge switch G2 is disconnected to prevent the energy storage battery pack 210 from being overcharged. At this time, the path formed by the charging diode D2 and the discharge switch G1 makes the energy storage battery pack 210 in a discharge path state; when the energy storage battery pack 210 needs to be discharged, the BMS battery management device 230 detects the discharge current and closes the charge switch G2 again, so that the discharge switch G1 and the charge switch G2 are both in a closed state, and the energy storage battery pack 210 discharges normally. When the energy storage battery pack 210 is discharged, the discharge switch G1 is disconnected to prevent the battery pack from being over-discharged. At this time, the path formed by the discharge diode D1 and the charging switch G2 puts the energy storage battery pack 210 in a charging path state. When the energy storage battery pack 210 needs to be charged, the BMS battery management device 230 detects the charging current and closes the discharge switch G1 again, so that the discharge switch G1 and the charging switch G2 are in a closed state, and the energy storage battery pack 210 is charged normally.

[0045] Among them, the wind-solar power generation device 100 includes a wind turbine 110, a solar panel 120 and a wind-solar controller 130. The wind turbine 110 is used to generate electricity using wind energy, and the solar panel 120 is used to generate electricity using light energy. The wind turbine 110 is connected to the wind-solar controller 130, and the solar panel 120 is connected to the wind-solar controller 130, thereby realizing power generation through green energy and reducing pollution to the environment.

[0046] Furthermore, the energy storage device 200 also includes a current sensor 240, which is used to collect the magnitude and direction of the current signal corresponding to the energy storage battery group 210. The current sensor 240 is connected in series with the negative output terminal of the energy storage battery group 210, and the current sensor 240 is communicatively connected with the BMS battery management device 230, so that the current signal data corresponding to the energy storage battery group 210 can be collected in real time.

[0047] At the same time, the energy storage device 200 also includes a fuse 250, which is used as a protector for line short circuit and line overcurrent. The fuse 250 is connected in series between the positive input terminal of the energy storage battery group 210 and the charging and discharging device 220. When the current of the communication base station energy storage system exceeds the rated value of the fuse 250, the fuse inside the fuse 250 will melt quickly, disconnect the circuit, and thereby protect the safety of the communication base station energy storage system.

[0048] Further, the working principle of the above communication base station energy storage system is explained as follows:

[0049] When the communication base station energy storage system is able to generate electricity through wind energy and solar energy, the output voltage and output current of the wind-solar power generation device 100 are adjusted and balanced through the BMS battery management device 230, and its output voltage and output current are input into the distribution device 400, and then the voltage and current input into the distribution device 400 are output to multiple base station loads 500 through the power distribution function of the distribution device 400. At the same time, the excess electric energy generated by the wind-solar power generation device 100 is input into the energy storage battery group 210, thereby charging the energy storage battery group 210.

[0050] When the communication base station energy storage system cannot generate electricity through wind energy and solar energy, the energy storage battery group 210 outputs DC power with a voltage of 48V, and inputs it into the distribution device 400 through the input switch 410; the distribution device 400 distributes and protects the DC power, and outputs the DC power to multiple base station loads 500, thereby providing backup power for the communication base station.

[0051] When a communication base station energy storage system fails, such as overvoltage, overcurrent, short circuit, open circuit or other circuit failures, the circuit breaker 430, isolating switch 440, fuse 450 and other components of the distribution device 400 will automatically cut off the faulty circuit, thereby protecting the safety of the communication base station energy storage system.

[0052] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A communication base station energy storage system, characterized in that ,include: A wind-solar power generation device, wherein the wind-solar power generation device is used to generate electricity using light energy and wind energy; An energy storage device, the energy storage device is used to store or release electric energy, the energy storage device includes an energy storage battery pack, a charging and discharging device and a BMS battery management device, the energy storage battery pack is used to store the electric energy generated by the wind and solar power generation device, the charging and discharging device is used to control the charging state and discharging state of the battery pack, the BMS battery management device is used to control and manage the energy storage battery pack, the BMS battery management device is communicatively connected to the energy storage battery pack, the BMS battery management device is communicatively connected to the charging and discharging device, and the energy storage battery pack is connected to the charging and discharging device; wherein the energy storage battery pack includes a plurality of battery cells, the plurality of battery cells are connected in series or in parallel, and the battery cells are lithium iron phosphate batteries; A dynamic environment monitoring device, the dynamic environment monitoring device is used to monitor and control the communication base station energy storage system, the dynamic environment monitoring device is communicatively connected to the wind and solar power generation device, and the dynamic environment monitoring device is communicatively connected to the energy storage device.

2. The communication base station energy storage system according to claim 1, characterized in that: The communication base station energy storage system also includes a plurality of base station loads, wherein the base station loads are used to provide communication functions for the communication base station, and the base station loads are communicatively connected to the dynamic environment monitoring device.

3. The communication base station energy storage system according to claim 2, characterized in that: The communication base station energy storage system also includes a power distribution device, which is used to distribute the power distribution path of the communication base station energy storage system. The input end of the power distribution device is connected to the wind and solar power generation device, the output end of the power distribution device is respectively connected to multiple base station loads, and the input end of the power distribution device is connected to the energy storage device.

4. The communication base station energy storage system according to claim 3, characterized in that: The power distribution device includes an input switch, an output switch, a circuit breaker, an isolating switch and a fuse. The input switch is used as a path switch for the wind and solar power generation device to be input to the power distribution device, and the output switch is used as a path switch for the power distribution device to be output to the base station load. The circuit breaker, the isolating switch and the fuse are all used to protect the circuit of the communication base station energy storage system. The input switch is connected in parallel with the output switch, the output switch is connected in parallel with the circuit breaker, the circuit breaker is connected in parallel with the isolating switch, and the isolating switch is connected in parallel with the fuse.

5. The communication base station energy storage system according to claim 1, characterized in that: The BMS battery management device includes a battery management unit, a battery balancing unit, a battery protection unit and a battery communication unit. The battery management unit is communicatively connected to the battery balancing unit, the battery management unit is communicatively connected to the battery protection unit, and the battery management unit is communicatively connected to the battery communication unit. The battery management unit is used to control the battery balancing unit, the battery protection unit and the battery communication unit. The battery balancing unit is used to perform balancing management on the energy storage battery group, the battery protection unit is used to perform fault diagnosis on the energy storage battery group, and the battery communication unit is used to transmit data to external components.

6. The communication base station energy storage system according to claim 1, characterized in that: The output voltage of the energy storage battery pack is 48V.

7. The communication base station energy storage system according to claim 1, characterized in that: The charging and discharging device includes a discharging switch, a charging switch, a charging diode and a discharging diode. The discharging switch is connected in series with the charging switch, the charging diode is connected in parallel with the charging switch, and the discharging diode is connected in parallel with the discharging switch.

8. The communication base station energy storage system according to claim 1, characterized in that: The wind-solar power generation device includes a wind generator, a solar panel and a wind-solar controller. The wind generator is used to generate electricity using wind energy, and the solar panel is used to generate electricity using light energy. The wind generator is connected to the wind-solar controller, and the solar panel is connected to the wind-solar controller.

9. The communication base station energy storage system according to claim 1, characterized in that: The energy storage device also includes a current sensor, which is used to collect the magnitude and direction of the current signal corresponding to the energy storage battery pack. The current sensor is connected in series with the negative output terminal of the energy storage battery pack, and the current sensor is communicatively connected with the BMS battery management device.

10. The communication base station energy storage system according to claim 1, characterized in that: The energy storage device also includes a fuse, which is used as a protector for line short circuit and line overcurrent, and the fuse is connected in series between the positive input terminal of the energy storage battery group and the charging and discharging device.

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