Power management system for 5G iron tower electric base station

Abstract

A power management system for a 5G iron tower electric base station integrates the base station and a street lamp station, and is characterized by comprising a power supply system and an energy storage system, the power supply system comprises an AC power distribution module, a rectifier module and a DC power distribution module, the energy storage system comprises a cabinet and a master control system, and a battery rack is arranged in the cabinet. The battery rack is provided with a plurality of vertically arranged placing bins, a battery pack is placed on each layer of placing bin, the battery pack is a lithium iron phosphate battery, and the lithium iron phosphate battery comprises a battery box, a cross-shaped steel part, an epoxy resin insulating plate and sixteen battery cells. The characteristics of high rate performance and long cycle life of the lithium iron phosphate battery are fully exerted, the battery is fully charged in a short time at night and is recycled for a long time in the daytime, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to 5G iron tower base station auxiliary facilities, and specifically to a power management system for 5G iron tower electric base stations. Background Art

[0002] With the rapid development of 5G communication technology, a large number of outdoor 5G tower base stations are being built in full swing. Different cities and geographical regions are restricted by the access to city electricity (such as highways, national roads, urban traffic roads, parks, rivers and coastal areas, etc.), which brings deficiencies and difficulties to the construction of 5G tower base stations. In order to consider factors such as convenient power supply and saving land resources, there are currently many 5G tower base station construction technologies that are combined with street light station construction. The power supply time of the street light station is powered on at night and the 5G tower base station needs power supply during the day. The existing base station technology can only use general lead-acid batteries as the backup power supply for the base station, which has small capacity, large weight and volume, and a small temperature range. In order to better save land resources and the limited use of electricity, give full play to the use of the tower direct power supply base station integrated machine, and optimize the power supply structure of the 5G tower base station to meet the needs of small space. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a power management system for 5G tower electric base station:

[0004] A power management system for a 5G tower electric base station, in which the base station and the street light station are built as one, including a power system and an energy storage system, wherein the power system includes an AC distribution module, a rectifier module, and a DC distribution module, wherein the DC distribution module is connected to the energy storage system, wherein the energy storage system includes a cabinet and a main control system, wherein a battery rack is provided in the cabinet, wherein the battery rack is provided with a plurality of vertically arranged placement bins, wherein a battery pack is placed on each layer of the placement bins, wherein the battery pack is a lithium iron phosphate battery, wherein the lithium iron phosphate battery includes a battery box, a cross-shaped steel piece, an epoxy resin insulating plate, and sixteen battery cells, wherein the sixteen battery cells are arranged in a 2*8 shape, wherein two layers of the epoxy resin insulating plates are provided for isolation between the battery cells, and the cross-shaped steel piece is provided for reinforcement between the two layers of the epoxy resin insulating plates.

[0005] Preferably, a battery connection line is provided between each of the lithium iron phosphate batteries. Preferably, the main control system is provided in the cabinet.

[0006] Preferably, the energy storage system is provided with a branch terminal for connecting the battery pack.

[0007] Preferably, the power supply system further includes a monitoring module connected to the AC power distribution module, the rectifier module and the DC power distribution module.

[0008] Preferably, the monitoring module includes a remote monitoring module and a short-range monitoring module.

[0009] Preferably, the main control system includes a main control module, a charge and discharge control module and a status display module.

[0010] Preferably, the status display module comprises a working status display circuit and a capacitance display circuit, both of which have indicator lights as main components.

[0011] The utility model has the following beneficial effects:

[0012] (1) The surplus electricity of street lamps at night is used to provide power supply for base station equipment. At the same time, lithium iron phosphate batteries are used to store energy at night to provide uninterrupted power to base station equipment during the day. There is no need for separate mains access to build street lamp stations, which fully utilizes the high rate performance and long cycle life of lithium iron phosphate batteries, and realizes short-term battery replenishment at night and long-term recycling during the day, which can effectively reduce the difficulty of base station site selection and construction. (2) It can be used in conjunction with the intelligent power supply system to realize intelligent features (intelligent peak shaving, intelligent peak shifting, intelligent boosting, and intelligent hybrid), and can be used in conjunction with the intelligent management system to realize intelligent features (cloud peak shaving, self-peak shifting, cloud boosting, and cloud hybrid), GPS, and intelligent software lock; (3) Lithium iron phosphate batteries are light in weight, small in size, have a long cycle life, and have good resistance to high and low temperatures. They are very suitable for use outdoors or in areas with relatively harsh operating environments, especially street lamp stations that have no air conditioning and harsh working conditions. The layered setting is also convenient for heat dissipation and maintenance; (4) The use of lithium iron phosphate batteries also embodies the concept of energy conservation and environmental protection. The structural improvements make full use of space and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a schematic diagram of the overall structure of the embodiment.

[0014] Figure 2 is a schematic diagram of the structure of the lithium iron phosphate battery of the embodiment. Figure 3 is a working wiring diagram of the cabinet 100A of the embodiment.

[0015] FIG. 4 is a working wiring diagram of the cabinet 200A of the embodiment.

[0016] Figure 5 is a parallel wiring diagram of three cabinets in the embodiment. Figure 6 is a schematic diagram of 24-hour power consumption of the original base station.

[0017] FIG. 7 is a schematic diagram of 24-hour power consumption of a base station using this embodiment.

[0018] 1. Battery box; 2. Cross-shaped steel piece; 3. Epoxy resin insulation board; 4. Battery core. Table 1 is a battery configuration suggestion table of the embodiment.

[0019] Table 2 is a table indicating the working status of the energy storage system of the embodiment.

[0020] Table 3 is a table indicating the battery capacity of the energy storage system of the embodiment. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with Figures 1 to 5 and Tables 1 to 3 and embodiments.

[0022] A power management system for a 5G iron tower electric base station. The base station and the street lamp station are built as one, including a power system and an energy storage system. The power system includes an AC distribution module, a rectifier module, and a DC distribution module. The DC distribution module is connected to the energy storage system. The energy storage system includes a cabinet and a main control system. A battery rack is provided in the cabinet. The battery rack is provided with a plurality of vertically arranged placement bins. Battery packs are placed on each layer of the placement bins. The battery packs are lithium iron phosphate batteries. Battery connecting lines are arranged between the lithium iron phosphate batteries. The lithium iron phosphate batteries include a battery box 1, a cross-shaped steel piece 2, an epoxy resin insulating plate 3 and sixteen battery cells 4. The sixteen battery cells 4 are arranged in a 2*8 shape. Two layers of epoxy resin insulating plates 3 are arranged between each battery cell 4 for isolation. A cross-shaped steel piece 2 is arranged between the two layers of epoxy resin insulating plates 3 for reinforcement. The outer side of the battery cell 4 can be fastened with a steel bar for compression. The reinforcement measures have strong deformation resistance and solve the shortcoming of poor bending resistance of the long battery package. Lithium iron phosphate batteries are light in weight, small in size, have long cycle life, and good resistance to high and low temperatures. They are very suitable for use outdoors or in areas with relatively harsh operating environments, especially street light stations that do not have air conditioning and have harsh working conditions. The layered setting is also convenient for heat dissipation and maintenance. For example, the battery is 48V100Ah, model LRIFP48100U4, with a size of 484mm*440mm*178mm, which can be flexibly expanded. The thickness of each battery group is only 4U, which saves more space during installation. Taking the existing 22U (communication industry equipment height specification, each U refers to 44.4mm) rack as an example, 4-5 groups of lithium iron phosphate battery modules using this structure can be placed to achieve a parallel capacity of 400-500Ah battery groups, greatly improving the space utilization of the battery rack, and more capacity batteries can be accommodated in the limited base station space, increasing system availability.

[0023] The main control system can be set up in a cabinet or independently, depending on the cabinet space and external environment. The energy storage system is equipped with branch terminals for connecting battery packs.

[0024] The power supply system also includes a monitoring module connected to the AC distribution module, the rectifier module and the DC distribution module. The monitoring module includes a remote monitoring module and a short-range monitoring module. The remote monitoring module facilitates the central station to monitor and alarm through the remote communication interface. The short-range monitoring module can set up power monitoring, screen display, monitoring, storage, etc. on the line, so that nearby staff can view operating parameters, understand the current operating status, save historical records and other functions.

[0025] The main control system includes a main control module, a charge and discharge control module and a status display module. The main control module controls the access and protection of the entire battery pack, and the charge and discharge control module controls the charging and discharging of the battery.

[0026] The status display module includes a working status display circuit and a capacitance display circuit, both of which use indicator lights as display elements. The display status of the indicator lights can be set as shown in Table 2 and Table 3.

[0027] The use of lithium iron phosphate batteries also embodies the concept of energy conservation and environmental protection. The structural improvements make full use of space and save costs. The surplus electricity used for nighttime lighting of street lamps is used to provide power for base station equipment. At the same time, lithium iron phosphate batteries are used to store energy at night to provide uninterrupted power to base station equipment during the day. There is no need for separate mains access to build street lamp stations, which gives full play to the high rate performance and long cycle life of lithium iron phosphate batteries. The battery can be fully charged in a short time at night and used in a long-term cycle during the day, which can effectively reduce the difficulty of base station site selection and construction. It can be used in conjunction with the intelligent power system to realize intelligent features (intelligent peak shaving, intelligent peak shifting, intelligent boosting, and intelligent mix and match), and can be used in conjunction with the intelligent management system to realize intelligent features (cloud peak shaving, self-peak shifting, cloud boosting, and cloud mix and match), GPS, and intelligent software lock.

[0028] At present, as shown in Figure 6, a single base station works 24 hours a day, with an average electricity cost of 0.5617 yuan / kWh. After improvement, as shown in Figure 7, the base station works 24 hours a day, with an average electricity cost of 0.3067 yuan / kWh. A single base station staggers peak power consumption, and uses reserve energy for the same power consumption, which can save electricity costs: (0.5617-0.3067)*3.5 kilowatts*24 hours*30 days*12 months=7711.2 yuan / year. By the end of 2023, my country has built a total of 3.377 million 5G base stations.

[0029] Obviously, the above embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to provide all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. A power management system for a 5G tower power base station, where the base station and street light station are built as one, characterized by: The invention comprises a power supply system and an energy storage system. The power supply system comprises an AC power distribution module, a rectifier module, and a DC power distribution module. The DC power distribution module is connected to the energy storage system. The energy storage system comprises a cabinet and a main control system. A battery rack is arranged in the cabinet. The battery rack is provided with a plurality of vertically arranged storage bins. A battery pack is placed on each layer of the storage bins. The battery pack is a lithium iron phosphate battery. The lithium iron phosphate battery comprises a battery box (1), a cross-shaped steel piece (2), an epoxy resin insulating plate (3), and sixteen battery cells (4). The sixteen battery cells (4) are arranged in a 2*8 shape. Two layers of the epoxy resin insulating plates (3) are arranged between the battery cells (4) for isolation. The cross-shaped steel piece (2) is arranged between the two layers of the epoxy resin insulating plates (3) for reinforcement.

2. According to claim 1, a power management system for a 5G tower electric base station is characterized in that: A battery connecting line is provided between the lithium iron phosphate batteries.

3. According to a power management system for a 5G tower electric base station according to claim 1, it is characterized in that: The main control system is arranged in the cabinet.

4. According to a power management system for a 5G tower electric base station according to claim 1, it is characterized in that: The energy storage system also includes a branch terminal for connecting the battery pack.

5. According to a power management system for a 5G tower electric base station according to claim 1, it is characterized in that: The power supply system further includes a monitoring module connected to the AC power distribution module, the rectifier module and the DC power distribution module.

6. A power management system for a 5G tower electric base station according to claim 5, characterized in that: The monitoring module includes a remote monitoring module and a short-range monitoring module.

7. According to claim 1, a power management system for a 5G tower electric base station is characterized in that: The main control system includes a main control module, a charge and discharge control module and a status display module.

8. A power management system for a 5G tower electric base station according to claim 7, characterized in that: The state display module comprises a working state display circuit and a capacitance display circuit, both of which use indicator lights as main components.

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