CN211089487U - High-voltage direct-current remote power supply system of 5G base station - Google Patents
High-voltage direct-current remote power supply system of 5G base station Download PDFInfo
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- CN211089487U CN211089487U CN201922262353.XU CN201922262353U CN211089487U CN 211089487 U CN211089487 U CN 211089487U CN 201922262353 U CN201922262353 U CN 201922262353U CN 211089487 U CN211089487 U CN 211089487U
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Abstract
The utility model discloses a 5G basic station high voltage direct current remote power supply system, including alternating current distribution unit, rectification power supply equipment, direct current distribution unit, long-range supply cable and remote communication power supply. By utilizing the system, the power supply problem of a plurality of 5G base stations can be solved only by introducing an alternating current power supply at a place with three-phase alternating current, so that the power supply problem of the base stations is solved, and the power supply cost is reduced. Meanwhile, the far-end equipment is directly powered by the high-voltage direct current power supply and the backup lithium battery which are converted from the alternating current power supply, so that the intermediate step-up and step-down conversion link is reduced, the system is simple, the cost is reduced, the full life cycle cost of the 5G base station is greatly reduced, and the system reliability is greatly improved. Meanwhile, the remote power supply system can meet the power supply requirements of 5KW, 10KW and the like for the power supply power of the far end due to no limitation of the power of the conversion circuit, and the requirements of a 5G base station are met.
Description
Technical Field
The utility model relates to a power supply technology, concretely relates to 5G basic station high voltage direct current remote power supply system.
Background
The traditional hybrid base station (2G/3G/4G) has large power consumption which is only several kilowatts, and can basically meet the requirement of power supply by adopting single-phase alternating current. However, after 5G equipment is introduced, the power consumption of base stations is greatly increased, each base station basically requires more than 10 kilowatts, a single-phase alternating-current power supply is difficult to meet the requirements, and a three-phase power supply needs to be introduced. In actual communication construction, electricity introduction of a communication base station is divided into 'direct power supply' and 'transfer power supply', and due to the limitation of site conditions and resources, a plurality of base station sites are difficult to ensure that enough alternating current power supply can be introduced, and particularly, a transfer power supply mode is difficult to introduce a three-phase alternating current power supply. This puts a great strain on the 5G base station construction and coordination.
To solve this power supply problem, high voltage remote power supply (HVDC) is one solution that can be recommended. However, the traditional communication high-voltage remote power supply technology is basically a communication power supply system of direct current-48V. When the power is supplied remotely, the voltage boosting module is used for boosting the direct current 48V to a high-voltage power supply (such as 90-400V) and then outputting the direct current; when the external alternating current is cut off, the standby battery (-48V) continues to supply power to the boosting module, and the power supply of the remote equipment is maintained.
The conventional communication high-voltage remote power supply technology has the following problems:
1. the system is subjected to secondary conversion from alternating current to 48V direct current and then from 48V direct current to high-voltage direct current, so that the complexity and the cost of the system are improved, and the reliability of the system is reduced;
2. through secondary conversion, extra electric energy conversion loss is generated, and the effective standby power time of the battery is reduced;
3. for technical reasons, the power of a conventional boosting module is 0.5-3 KW, and after the power exceeds 3KW, the low-voltage side (-48V) current is too large, so that the performance of a product is difficult to guarantee, and the cost performance of the product is also remarkably reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a 5G basic station high voltage direct current remote power supply system to solve the problem that traditional communication high voltage remote power supply technique complexity is high, the reliability is low, the electric energy conversion loss is big, the performance is low.
The utility model discloses a realize through following technical scheme:
A5G base station high-voltage direct-current remote power supply system comprises:
the alternating current distribution unit is used for accessing and distributing alternating current;
the rectification power supply equipment is connected with the alternating current power distribution unit and used for accessing the alternating current from the alternating current power distribution unit and converting the alternating current into high-voltage direct current;
the direct current distribution unit is connected with the rectification power supply equipment and used for accessing and distributing the high-voltage direct current;
the remote power supply cable is connected with the direct current power distribution unit and is used for transmitting the high-voltage direct current;
and the remote communication power supply is connected with the remote power supply cable and is used for converting the high-voltage direct current into-48V direct current and transmitting the-48V direct current to 5G equipment.
Further, the rectification power supply equipment comprises a series lithium battery pack and a rectification power supply pack, the series lithium battery pack comprises a plurality of lithium batteries which are sequentially connected in series, the rectification power supply pack comprises a plurality of rectification power supplies which are sequentially connected in series, each rectification power supply is connected with the alternating current power distribution unit to access the alternating current, each rectification power supply corresponds to each lithium battery one by one, and each rectification power supply is connected with the corresponding lithium battery to charge the corresponding lithium battery;
the positive electrode of the series lithium battery pack is connected with the positive input end of the direct current power distribution unit, and the negative electrode of the series lithium battery pack is connected with the negative input end of the direct current power distribution unit;
the positive electrode of the rectification power supply set is connected with the positive input end of the direct current distribution unit, and the negative electrode of the rectification power supply set is connected with the negative input end of the direct current distribution unit.
Further, each lithium battery comprises a plurality of lithium battery cells connected in parallel with each other.
Further, each rectification power supply comprises a plurality of rectification modules which are connected in parallel with each other.
Further, each rectification power supply comprises a plurality of rectification modules which are connected in parallel, and each lithium battery comprises a plurality of lithium battery units which are connected in parallel.
Further, the rectifier power supply equipment includes direct current uninterrupted power source group, direct current uninterrupted power source includes a plurality of direct current uninterrupted power source that establish ties each other, direct current uninterrupted power source include with the rectifier power source that the alternating current distribution unit connects and with the lithium cell that rectifier power source connects, direct current uninterrupted power source group's positive pole is connected direct current distribution unit's positive input, direct current uninterrupted power source group's negative pole is connected direct current distribution unit's negative input end.
Further, the remote power supply cable is a fiber optic power hybrid cable or a pure power cable.
Compared with the prior art, the utility model provides a 5G basic station high voltage direct current remote power supply system, including alternating current distribution unit, rectification power supply equipment, direct current distribution unit, long-range supply cable and remote communication power supply. By utilizing the system, the power supply problem of a plurality of 5G base stations can be solved only by introducing an alternating current power supply at a place with three-phase alternating current, so that the power supply problem of the base stations is solved, and the power supply cost is reduced. Meanwhile, the far-end equipment is directly powered by the high-voltage direct current power supply and the backup lithium battery which are converted from the alternating current power supply, so that the intermediate step-up and step-down conversion link is reduced, the system is simple, the cost is reduced, the full life cycle cost of the 5G base station is greatly reduced, and the system reliability is greatly improved. Meanwhile, the remote power supply system can meet the power supply requirements of 5KW, 10KW and the like for the power supply power of the far end due to no limitation of the power of the conversion circuit, and the requirements of a 5G base station are met.
Drawings
Fig. 1 is a schematic diagram of a composition principle of a high-voltage direct-current remote power supply system of a 5G base station according to the embodiment of the present invention;
fig. 2 is a schematic diagram of the principle of the composition of the 5G base station high-voltage direct-current remote power supply system based on the rectifying power supply and the communication lithium battery in the embodiment of the present invention;
fig. 3 is the embodiment of the utility model provides a 5G basic station high voltage direct current remote power supply system based on direct current uninterrupted power source constitutes the principle sketch map.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1, the embodiment of the utility model provides a 5G basic station high voltage direct current remote power supply system includes:
an alternating current distribution unit 1 for receiving and distributing alternating current;
the rectification power supply device 2 is connected with the alternating current power distribution unit 1 and used for accessing alternating current from the alternating current power distribution unit 1 and converting the alternating current into high-voltage direct current;
the direct current distribution unit 3 is connected with the rectification power supply equipment 2 and used for accessing and distributing high-voltage direct current;
the remote power supply cable 4 is connected with the direct current distribution unit 3 and is used for transmitting high-voltage direct current;
and the remote communication power supply 6 is connected with the remote power supply cable 4 and is used for converting the high-voltage direct current into-48V direct current and transmitting the-48V direct current to the 5G equipment 7.
The ac power distribution unit 1 is mainly used to perform ac power and power distribution, and to distribute ac power and input the distributed ac power to the rectifying power supply device 2. Generally, in a place with a three-phase power supply, high-power alternating current of 20KVA-100KVA is connected into the system, and the alternating current enters a rectification power supply device 2 after being connected through an alternating current power distribution unit 1. The rectifying power supply device 2 is mainly used for converting alternating current into high-voltage direct current, and a power conversion module of the rectifying power supply device 2 is composed of a traditional 48V communication power supply module and can generally convert the alternating current into a high-voltage direct current voltage of 92V to 768V. The direct current distribution unit 3 is mainly used for distributing and transmitting high-voltage direct current and transmitting the high-voltage direct current to a remote 5G base station 5 through a remote power supply cable 4. The remote power supply cable 4 may be a hybrid fiber-optic power cable or a pure power cable. The direct current distribution unit 3 is internally provided with a switch, an overcurrent protection device, a short circuit protection device, an electric leakage protection device and the like, and the switch can be controlled manually or electrically. The remote 5G base station 5 includes a remote communication power supply 6 and a 5G device 7 connected to the remote communication power supply 6. The remote communication power supply 6 is connected to the remote power supply cable 4, is provided with a DC/DC voltage transformation module therein, converts high-voltage DC power received through the remote power supply cable 4 into-48V DC power for communication, and transmits the-48V DC power to the 5G device 7 at the subsequent stage to drive the same.
The rectification power supply device 2 directly converts an alternating current power supply into high-voltage direct current to supply power to the far-end 5G base station 5, so that the intermediate step-up conversion link is reduced, the system is simple, the cost is reduced, the full life cycle cost of the 5G base station 5 is greatly reduced, and meanwhile, the system reliability is greatly improved. Meanwhile, the power supply power of the rectification power supply equipment 2 to the far-end 5G base station 5 is not limited by the power of the conversion circuit, so that the power supply requirements of 5KW, 10KW and the like can be met, and the requirements of the 5G base station 5 are met. The rectified power supply device 2 is an important component of a remote power supply system.
The rectified power supply device 2 can be implemented in two schemes. As shown in fig. 2, in a first scheme of the rectifying power supply device 2, the rectifying power supply device 2 includes a series lithium battery pack and a rectifying power supply pack, the series lithium battery pack includes a plurality of lithium batteries 202 connected in series in sequence, the rectifying power supply pack includes a plurality of rectifying power supplies 201 connected in series in sequence, each rectifying power supply 201 is connected to the ac power distribution unit 1 to access ac power, each rectifying power supply 201 corresponds to each lithium battery 202 in a one-to-one manner, and each rectifying power supply 201 is connected to a corresponding lithium battery 202 to charge the corresponding lithium battery 202. The positive pole of the series lithium battery pack is connected with the positive input end of the direct current distribution unit 3, and the negative pole of the series lithium battery pack is connected with the negative input end of the direct current distribution unit 3. Meanwhile, the positive pole of the rectification power supply set is connected with the positive input end of the direct-current power distribution unit 3, the negative pole of the rectification power supply set is connected with the negative input end of the direct-current power distribution unit 3, so that the converted high-voltage direct current is connected into the direct-current power distribution unit 3, and the direct-current power distribution unit 3 transmits power to the far-end 5G base station 5 through the remote power supply cable 4. Through this kind of mode, rectification power supply unit 2 still charges to each built-in lithium cell 202 simultaneously when externally supplying power through high-voltage direct current, when taking place to exchange power failure, can supply power to distal end 5G basic station 5 through the lithium cell group, and need not to pass through other power conversion equipment, does not have conversion loss, has prolonged the effective stand-by time of lithium cell 202. The voltage of the high-voltage direct current can be adjusted by adjusting the number of the series-connected rectifying power supply 201 and the series-connected lithium battery 202 so as to meet the requirements of various powers and distances, wherein if the distance is long and the power is large, a higher voltage value is adopted, and if the distance is short and the power is small, a lower voltage value is adopted.
The rectification power supply device 2 can realize capacity expansion. The capacity expansion comprises the capacity expansion of a rectification power supply pack and the capacity expansion of a series lithium battery pack. In the aspect of capacity expansion of the series lithium battery pack, each lithium battery 202 may include a plurality of lithium battery cells 204 connected in parallel to increase the standby power capacity of the rectification power supply device 2 and prolong the standby power time thereof. In terms of capacity expansion of the rectified power supply group, each rectified power supply 201 may include a plurality of rectifying modules 203 connected in parallel to improve the dc output capability of the rectified power supply device 2. These two expansion modes can be used in combination to increase the standby power capacity of the rectified power supply device 2 and to improve the dc output capability of the rectified power supply device 2 at the same time.
As shown in fig. 3, in a second scheme of the rectification power supply device 2, the rectification power supply device 2 includes a dc ups group, the dc ups includes a plurality of dc upsets connected in series, the dc upsets include a rectification power supply 201 connected to the ac power distribution unit 1 and a lithium battery 202 connected to the rectification power supply 201, a positive electrode of the dc ups group is connected to a positive input terminal of the dc power distribution unit 3, a negative electrode of the dc upsets is connected to a negative input terminal of the dc power distribution unit 3 to connect the converted high-voltage dc power to the dc power distribution unit 3, and the dc power distribution unit 3 transmits power to the remote 5G base station 5 through the remote power supply cable 4. The size of the high-voltage direct current can be adjusted by adjusting the number of the direct current uninterrupted power supplies connected in series. The rectification power supplies 201 of the direct current uninterruptible power supplies are connected in series, each rectification power supply 201 converts alternating current accessed through the alternating current power distribution unit 1 into high-voltage direct current, and the high-voltage direct current is distributed by the direct current power distribution unit 3 and then is transmitted to the remote 5G base station 5 through the remote power supply cable 4. Meanwhile, each rectification power supply 201 supplies power to the outside and charges the lithium battery 202 connected thereto. When an ac power failure occurs, the lithium battery 202 in each dc ups may supply power to the remote 5G base station 5.
The above embodiments are only preferred embodiments and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A5G basic station high voltage direct current remote power supply system characterized in that includes:
the alternating current distribution unit is used for accessing and distributing alternating current;
the rectification power supply equipment is connected with the alternating current power distribution unit and used for accessing the alternating current from the alternating current power distribution unit and converting the alternating current into high-voltage direct current;
the direct current distribution unit is connected with the rectification power supply equipment and used for accessing and distributing the high-voltage direct current;
the remote power supply cable is connected with the direct current power distribution unit and is used for transmitting the high-voltage direct current;
and the remote communication power supply is connected with the remote power supply cable and is used for converting the high-voltage direct current into-48V direct current and transmitting the-48V direct current to 5G equipment.
2. The 5G base station high-voltage direct current remote power supply system according to claim 1, wherein the rectifying power supply device comprises a series lithium battery pack and a rectifying power supply pack, the series lithium battery pack comprises a plurality of lithium batteries which are sequentially connected in series, the rectifying power supply pack comprises a plurality of rectifying power supplies which are sequentially connected in series, each rectifying power supply is connected with the alternating current distribution unit to access the alternating current, each rectifying power supply corresponds to each lithium battery in a one-to-one mode, and each rectifying power supply is connected with each corresponding lithium battery to charge each corresponding lithium battery;
the positive electrode of the series lithium battery pack is connected with the positive input end of the direct current power distribution unit, and the negative electrode of the series lithium battery pack is connected with the negative input end of the direct current power distribution unit;
the positive electrode of the rectification power supply set is connected with the positive input end of the direct current distribution unit, and the negative electrode of the rectification power supply set is connected with the negative input end of the direct current distribution unit.
3. The 5G base station high-voltage direct current remote power supply system of claim 2, wherein each lithium battery comprises a plurality of lithium battery cells connected in parallel with each other.
4. The 5G base station high voltage direct current remote power supply system of claim 2, wherein each rectified power supply comprises a plurality of rectification modules connected in parallel with each other.
5. The 5G base station high-voltage direct current remote power supply system according to claim 2, wherein each rectification power supply comprises a plurality of rectification modules connected in parallel with each other, and each lithium battery comprises a plurality of lithium battery cells connected in parallel with each other.
6. The 5G base station high-voltage direct-current remote power supply system according to claim 1, wherein the rectifier power supply device comprises a DC UPS (uninterrupted direct current power supply) set, the DC UPS comprises a plurality of DC UPSs (uninterrupted direct current) which are connected in series with each other, the DC UPSs comprise rectifier power supplies which are connected with the AC power distribution unit and lithium batteries which are connected with the rectifier power supplies, the positive pole of the DC UPSs is connected with the positive input end of the DC power distribution unit, and the negative pole of the DC UPSs is connected with the negative input end of the DC power distribution unit.
7. The 5G base station high voltage direct current remote power supply system of claim 1, wherein the remote power supply cable is a fiber optic power hybrid cable or a pure power cable.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884197A (en) * | 2020-09-17 | 2020-11-03 | 金国卫 | Intelligent direct-current power distribution system |
| CN112260262A (en) * | 2020-09-10 | 2021-01-22 | 陕西疆晨信息科技有限公司 | Intelligent power supply control and metering device and method for 5G base station |
| CN112491127A (en) * | 2020-10-27 | 2021-03-12 | 云南众远电力工程有限公司 | Novel energy-conserving photovoltaic power supply integration 5G basic station |
| CN113595225A (en) * | 2021-06-23 | 2021-11-02 | 杭州中恒电气股份有限公司 | Intelligent power supply system and method |
-
2019
- 2019-12-17 CN CN201922262353.XU patent/CN211089487U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260262A (en) * | 2020-09-10 | 2021-01-22 | 陕西疆晨信息科技有限公司 | Intelligent power supply control and metering device and method for 5G base station |
| CN111884197A (en) * | 2020-09-17 | 2020-11-03 | 金国卫 | Intelligent direct-current power distribution system |
| CN111884197B (en) * | 2020-09-17 | 2024-03-19 | 安徽省金屹电源科技有限公司 | An intelligent DC power distribution system |
| CN112491127A (en) * | 2020-10-27 | 2021-03-12 | 云南众远电力工程有限公司 | Novel energy-conserving photovoltaic power supply integration 5G basic station |
| CN113595225A (en) * | 2021-06-23 | 2021-11-02 | 杭州中恒电气股份有限公司 | Intelligent power supply system and method |
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