CN112994000A - Device for supplying power to 5G base station by using street lamp power supply system and working method thereof - Google Patents
Device for supplying power to 5G base station by using street lamp power supply system and working method thereof Download PDFInfo
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- CN112994000A CN112994000A CN202110422841.1A CN202110422841A CN112994000A CN 112994000 A CN112994000 A CN 112994000A CN 202110422841 A CN202110422841 A CN 202110422841A CN 112994000 A CN112994000 A CN 112994000A
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- power supply
- base station
- phase
- power
- street lamp
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
Abstract
The invention belongs to the technical field of power supply system application, and particularly discloses a device for supplying power to a 5G base station by using a street lamp power supply system and a working method thereof, wherein the device comprises a 5G base station power supply switching module and a 5G base station power supply module, one path of three-phase electricity and one path of single-phase electricity are led out from a street lamp power distribution station and are connected to the 5G base station power supply switching module, the output end of the 5G base station power supply switching module is connected with a three-phase power supply cable, the 5G base station power supply module of each lamp post is connected to one-phase power supply input of the lamp post in parallel, and the output end of the 5. The invention has the beneficial effects that: the device is stable and strong, and has no false action; the capacity expansion capability is provided, and the specification of the battery can be flexibly selected so as to meet the requirement of the total output load; the size is small, the weight is light, the anti-interference capability is strong, and the installation of various scenes is convenient; the input undervoltage protection, the current-limiting protection, the short-circuit protection and the like are realized; the system has the functions of monitoring and controlling output voltage, output current, battery charging current and the like in real time.
Description
Technical Field
The invention belongs to the technical field of power supply system application, and particularly relates to a device for supplying power to a 5G base station by using a street lamp power supply system and a working method thereof.
Background
With the landing of 5G license plates, china formally enters the 5G era, and the construction and deployment work including 5G base stations will be accelerated accordingly.
The 5G has many advantages such as high speed, ubiquitous network, low power consumption, low time delay and the like, but the 5G also has the disadvantages of short transmission distance, poor penetration and diffraction capability and the like. In order to realize the comprehensive coverage of signals, a traditional macro base station needs to be changed into a micro base station with more sites and higher density, so that the number of 5G network access devices is increased explosively, and the network access devices in a unit area may be increased by thousands of times. In order to solve the problem of site selection of the base station, factors such as civil engineering cost, reduction of expenditure of supporting equipment and the like are considered, and one of the feasible schemes at present is to construct a 5G base station by utilizing the existing light poles, traffic poles and the like. In the construction of a communication base station, besides the site selection link, the power supply link of the base station is also a more critical step. The power supply work is well done, so that the smooth development of the base station construction can be ensured, and the safety and the stability of the base station use can also be ensured.
Therefore, in view of the above problems, the present invention provides an apparatus for supplying power to a 5G base station by using a street lamp power supply system and a working method thereof.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a device for supplying power to a 5G base station by utilizing a street lamp power supply system and a working method thereof, on one hand, the street lamp power supply system is utilized to supply power to the 5G base station, a set of base station power supply device is developed by comprehensively analyzing working parameters of the base station and the working principle of a street lamp, a street lamp power supply cable is utilized to supply power to the 5G base station, a safe voltage is used to supply power to the 5G base station in the daytime when the street lamp is not supplied with power, and the base station supplies power to the street lamp by switching back 220VAC synchronously when the street lamp is supplied with mains power at night, on the other hand, the base station power supply system is mutually connected and supplemented with a street lamp post, so that the street lamp power supply system can be intelligently allocated, the system state can be monitored, the response can be carried out in.
The technical scheme is as follows: the invention provides a device for supplying power to a 5G base station by utilizing a street lamp power supply system and a working method thereof, wherein the device comprises a 5G base station power supply switching module and a 5G base station power supply module, wherein one path of three-phase electricity and one path of single-phase electricity are led out from a street lamp power distribution station and are connected to the 5G base station power supply switching module, the output end of the 5G base station power supply switching module is connected with a three-phase power supply cable, the 5G base station power supply module of each lamp pole is connected to one-phase power supply input of the lamp pole in parallel, and the output end of the 5G base station power supply.
According to the technical scheme, the device for supplying power to the 5G base station by using the street lamp power supply system supplies power to the 5G base station by using 36V safe voltage in the daytime when the street lamp is not supplied with power; when the street lamp is supplied with mains electricity at night, the 5G base station power supply switching module synchronously switches back the mains electricity 220VAC to finish power supply, and the 5G base station supplies power uninterruptedly for 24 hours under safe voltage.
This technical scheme, utilize street lamp power supply system for the device of 5G basic station power supply, still include the wrong peak charging mode of intelligence, daytime and evening use of electricity peak period choose for use 5G basic station power module and the synchronous power supply mode of battery, charge for the battery during the night power consumption low ebb.
According to the technical scheme, the daytime-state direct-current power supply is input in a wide range, the input range is 20V-36 VDC, and the output is 48V and 500W; the night state power supply input is 220VAC, the 220VAC is converted into 48V direct current, wherein the alternating current and direct current are switched for 2s, and the battery supplies power to the load in the switching interval time.
According to the technical scheme, the device for supplying power to the 5G base station by using the street lamp power supply system further comprises a built-in wireless communication transceiver connected with the 5G base station power supply switching module and the 5G base station power supply module respectively, fault information and system states are sent to a specified server through GPRS, protocol contents can be customized, and the sent information includes but is not limited to voltage, current, temperature and the like.
Compared with the prior art, the device for supplying power to the 5G base station by using the street lamp power supply system and the working method thereof have the advantages that: 1) the device is stable and strong, and has no false action; 2) the capacity expansion capability is provided, and the specification of the battery can be flexibly selected so as to meet the requirement of the total output load; 4) the equipment has small appearance volume, light weight, strong heat dissipation and anti-interference capability and is convenient for installation in various scenes, the protection grade of the shell reaches IP67, and the installation requirement under outdoor and severe conditions is met; 5) the protection circuit has the functions of input undervoltage protection, over-temperature protection, output overvoltage protection, current-limiting protection and short-circuit protection, and the protection capability meets the relevant standards of the communication industry; 6) the device has the functions of real-time monitoring and control of output voltage, output current, battery charging current and the like, is internally provided with a wireless communication transceiver, can send fault information and system states to a specified server through GPRS (general packet radio service), and can customize protocol contents.
Drawings
FIG. 1 is a schematic structural diagram of a device for supplying power to a 5G base station by using a street lamp power supply system according to the present invention;
FIG. 2 is an electrical schematic block diagram of a 5G base station power switching module of the apparatus for supplying power to a 5G base station using a street lamp power supply system of the present invention;
fig. 3 is an electrical schematic block diagram of a 5G base station power module of the device for supplying power to a 5G base station by using a street lamp power supply system according to the present invention.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
The invention discloses a device for supplying power to a 5G base station by utilizing a street lamp power supply system, which comprises a 5G base station power supply switching module and a 5G base station power supply module, wherein one path of three-phase electricity and one path of single-phase electricity are led out from a street lamp power distribution station and are connected to the 5G base station power supply switching module, the output end of the 5G base station power supply switching module is connected with a three-phase power supply cable, the 5G base station power supply module of each lamp post is connected to one-phase power supply input of the lamp post in parallel, and the output end of the 5G base station power supply module is connected with.
Preferably, the device for supplying power to the 5G base station by using the street lamp power supply system supplies power to the 5G base station by using 36V safe voltage in the daytime when the street lamp is not supplied with power; when the street lamp is supplied with mains electricity at night, the 5G base station power supply switching module synchronously switches back the mains electricity 220VAC to finish power supply, and the 5G base station supplies power uninterruptedly for 24 hours under safe voltage.
Preferably, the device for supplying power to the 5G base station by using the street lamp power supply system further comprises an intelligent off-peak charging mode, wherein the 5G base station power supply module and the battery synchronous power supply mode are selected in the peak period of power utilization in the daytime and at night, and the battery is charged in the off-peak period of power utilization at night.
Preferably, the daytime-state direct-current power supply is wide-input, has an input range of 20V-36 VDC and outputs of 48V and 500W; the night state power supply input is 220VAC, the 220VAC is converted into 48V direct current, wherein the alternating current and direct current are switched for 2s, and the battery supplies power to the load in the switching interval time.
Preferably, the device for supplying power to the 5G base station by using the street lamp power supply system further comprises a built-in wireless communication transceiver connected with the 5G base station power supply switching module and the 5G base station power supply module respectively, and is capable of sending fault information and system status to a designated server through GPRS, and the protocol content is customizable, wherein the sent information includes but is not limited to voltage, current, temperature and the like.
Examples
Comparing with the attached figure 1, 1) a 5G base station power supply switching module (assembled at the side of a street lamp power distribution station); 2) the 5G base station power supply module (assembled street lamp side) is characterized in that one path of three-phase electricity and one path of single-phase electricity are led out from a street lamp power distribution station and are connected to the 5G base station power supply switching module, the output end of the 5G base station power supply switching module is connected with a three-phase power supply cable, the 5G base station power supply modules of all lamp poles are connected to one-phase power supply input of the lamp pole in parallel, and the output end of the 5G base station power supply module is connected with the 5G base.
Referring to fig. 2, the 5G base station power switching module switches ac/dc power supply according to a street lamp control signal, which is a normally open digital passive node. The light-on signal node is closed, and the line is in a 380V alternating current power supply mode; the light-on signal node is disconnected, and the line is in a 36V direct current power supply mode.
The output voltage of the 5G base station power supply switching module is 36-42V adjustable, a 485 or CAN communication interface is reserved, and the wireless communication function and the internal parameter monitoring and controlling function (including output voltage, output current and the like) are realized.
Switching logic: the switch-on and switch-off of KM1 and KM2 are controlled by street lamp controller signals.
1) AC to DC conversion
The QF1 is closed, when 1KM is disconnected, the time relay KA1 and the coil of KA2 lose power, the normally open point of KA1 is opened instantly, the normally closed point of KA2 is closed by delaying 2S, so that KM2 is closed after KM1 is completely disconnected;
2) converting DC to AC
When 1KM is sucked, the time relay KA1 and the KA2 coil are electrified, the KA2 normally-closed point is instantly opened, the KA1 normally-open point is closed by 2S delay, so that KM1 is closed after KM2 is completely opened;
3) KM1 and KM2 were electrically interlocked.
Referring to fig. 3, the 5G base station power module is mainly used for 24-hour uninterrupted power supply of the 5G base station and is divided into two power supply modes, i.e., ac input power supply and dc input power supply. When the external battery is output, the uninterrupted switching of AC/DC input power supply can be realized.
Day mode:
1) in the daytime, the AC power supply is automatically switched into the DC power supply mode, the input peak power is controlled to be about 600W, the input power automatic limiting function is realized, the lower the input voltage is, the lower the input power is, the requirement that under the condition that the switching cabinet outputs 36V is met, three base station power supplies can be started normally at the same time, and the power limiting mode is automatically entered;
2) the charging and discharging switching function of two external batteries in parallel is realized;
3) the device has the functions of monitoring and controlling output voltage, output current and battery charging current;
4) and a 485 or CAN communication interface is reserved to realize wireless data transmission and intelligent control.
Night mode:
1) the DC power supply is automatically switched into an AC power supply mode at night, the output peak power is controlled to be about 700W, and the adjustable charging and discharging power function is achieved;
2) the charging and discharging switching function of two external batteries in parallel is realized;
3) the device has the functions of monitoring and controlling output voltage, output current and battery charging current;
4) and a 485 or CAN communication interface is reserved to realize wireless data transmission and intelligent control.
The electrical principle is as follows:
firstly, input power-on, auxiliary power supply of the whole system is provided by a storage battery, when the auxiliary power supply is normal, a DSP control system starts to work, and a relay needing to be closed is selected to supply power to a post-stage circuit by judging A, B, C voltage states and voltage states on an N line through three-phase alternating current input voltage detection and one-path direct current input voltage detection;
secondly, converting alternating current into direct current output (AC-DC), in an initial state, all relays are disconnected, when the DSP control system judges that alternating current is input, the alternating current relays are closed, the DSP control system controls the alternating current to direct current power supply to start working, and meanwhile, battery management (comprising functions of uniform charging, floating charging, protection and the like) can be carried out according to the voltage and the charging and discharging states of the storage battery;
thirdly, converting direct current into direct current output (DC-DC), when the DSP control system judges that direct current is input, closing a direct current relay, controlling the direct current to be converted into a direct current power supply to start working by the DSP control system, and simultaneously carrying out battery management (comprising functions of uniform charging, floating charging, protection and the like) according to the voltage and the charging and discharging states of the storage battery;
fourthly, the alternating current and the direct current are input,
a. inputting alternating current (phase failure or overvoltage and undervoltage), assuming that the current power supply is an A phase and the closed relay is S1, when the DSP detects that the A phase voltage is any one of 0, undervoltage or overvoltage, controlling the currently closed relay S1 to be opened, enabling the AC-DC to enter a shutdown process, detecting the B phase alternating current voltage and the C phase alternating current voltage, selecting to close S2 or S3 through a set control strategy (selecting one phase of normal voltage in B, C phase), and restarting the AC-DC startup process;
b. inputting alternating current to direct current (alternating current is powered off and direct current is powered on), assuming that the current power supply is an A phase and a closed relay is S1, when the DSP detects that the phase voltage of the A phase is 0, controlling the currently closed relay S1 to be disconnected, enabling the AC-DC to enter a power-off process, detecting that the three-phase alternating current voltage is 0, simultaneously detecting that the direct current voltage reaches a power supply available state, closing S4, S5 and S6 in sequence, and then starting a DC-DC power-on process;
c. inputting direct current to alternating current (direct current is powered off and alternating current is powered on), assuming that the current state is a direct current power supply state, then S1, S2 and S3 are disconnected, S4, S5 and S6 are closed, when the DSP detects that the voltage of the direct current power supply is reduced to 0, the S4, S5 and S6 which are currently closed are controlled to be disconnected, the DC-DC enters a power-off process, then three-phase alternating current voltages of A, B and C are detected, when at least one phase reaches a power supply state, one of the S1, S2 and S3 is closed through a set control strategy (a normal phase is selected and three 5G base station power supplies are guaranteed to use different phases), and then the AC-DC power-on process is started;
no input voltage, when the DSP detects no AC input and DC input, all input relays are switched off, the post-stage power supply is shut down, and whether the storage battery supplies power to the load or not can be selected according to a formulated control strategy;
state reporting and controlling, all power supply working states (protection functions), alarms and faults can be reported in a dry contact or 485 communication mode according to the importance levels of the power supply working states, and meanwhile, all power supply states can be set and controlled in a specification range by an upper computer.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (6)
1. The utility model provides an utilize street lamp power supply system for 5G basic station's device of power supply which characterized in that: the street lamp power supply switching system comprises a 5G base station power supply switching module and a 5G base station power supply module, wherein one path of three-phase electricity and one path of single-phase electricity are led out from a street lamp power distribution station and are connected to the 5G base station power supply switching module, the output end of the 5G base station power supply switching module is connected with a three-phase power supply cable, the 5G base station power supply module of each lamp pole is connected to one-phase power supply input of the lamp pole in parallel, and the output end of the 5G base station power supply module is connected with.
2. The device for supplying power to the 5G base station by using the street lamp power supply system according to claim 1, wherein: the device for supplying power to the 5G base station by using the street lamp power supply system supplies power to the 5G base station by using 36V safe voltage in the daytime when the street lamp is not supplied with power; when the street lamp is supplied with mains electricity at night, the 5G base station power supply switching module synchronously switches back the mains electricity 220VAC to finish power supply, and the 5G base station supplies power uninterruptedly for 24 hours under safe voltage.
3. The device for supplying power to the 5G base station by using the street lamp power supply system according to claim 1, wherein: utilize street lamp power supply system for the device of 5G basic station power supply, still include the wrong peak charging mode of intelligence, daytime and evening use the electricity peak period for use 5G basic station power module and the synchronous power supply mode of battery, charge for the battery during the night power consumption low ebb.
4. The device for supplying power to the 5G base station by using the street lamp power supply system according to claim 3, wherein: the daytime direct-current power supply is input in a wide range, the input range is 20V-36 VDC, and the output is 48V and 500W; the night state power supply input is 220VAC, the 220VAC is converted into 48V direct current, wherein the alternating current and direct current are switched for 2s, and the battery supplies power to the load in the switching interval time.
5. The device for supplying power to the 5G base station by using the street lamp power supply system according to claim 1 or 3, wherein: the device for supplying power to the 5G base station by using the street lamp power supply system further comprises a built-in wireless communication transceiver connected with the 5G base station power supply switching module and the 5G base station power supply module respectively, fault information and a system state are sent to a specified server through GPRS, protocol content can be customized, and the sent information comprises but is not limited to voltage, current and temperature.
6. The working method of the device for supplying power to the 5G base station by using the street lamp power supply system as claimed in claim 5
The method is characterized in that: comprises the following steps of (a) carrying out,
step 1, inputting power-on, wherein auxiliary power supply of the whole system is provided by a storage battery, and when the auxiliary power supply is normal, the DSP
The control system starts to work, voltage states on A, B, C and the N line are judged through three-phase alternating current input voltage detection and one-path direct current input voltage detection, and a relay needing to be closed is selected to supply power to a post-stage circuit;
step 2, converting alternating current to direct current output (AC-DC), in an initial state, disconnecting all relays, closing the alternating current relays when the DSP control system judges that alternating current is input, controlling the alternating current to direct current power supply to start working by the DSP control system, and managing the battery according to the voltage and the charging and discharging states of the storage battery;
step 3, converting direct current into direct current output (DC-DC), when the DSP control system judges that direct current is input, closing a direct current relay, controlling the direct current to be converted into a direct current power supply to start working by the DSP control system, and managing the battery according to the voltage and the charging and discharging states of the storage battery;
step 4, inputting alternating current and direct current conversion,
a. inputting alternating current to alternating current (phase failure or overvoltage and undervoltage), assuming that the current power supply is phase A and the closed relay is S1, when the DSP detects that the phase voltage of phase A is any one of 0, undervoltage or overvoltage, controlling the currently closed relay S1 to be opened, enabling the AC-DC to enter a shutdown process, detecting the alternating current voltages of phase B and phase C, selectively closing S2 or S3 through a set control strategy, and restarting the AC-DC startup process;
b. inputting alternating current to direct current (alternating current is powered off and direct current is powered on), assuming that the current power supply is an A phase and a closed relay is S1, when the DSP detects that the phase voltage of the A phase is 0, controlling the currently closed relay S1 to be disconnected, enabling the AC-DC to enter a power-off process, detecting that the three-phase alternating current voltage is 0, simultaneously detecting that the direct current voltage reaches a power supply state, sequentially closing S4, S5 and S6 through a set control strategy, and then starting a DC-DC power-on process;
c. inputting direct current to alternating current (direct current is powered off and alternating current is powered on), assuming that the current state is a direct current power supply state, then S1, S2 and S3 are disconnected, S4, S5 and S6 are closed, when the DSP detects that the voltage of the direct current power supply is reduced to 0, the current closed relays are controlled to be S4, S5 and S6 are disconnected, the DC-DC enters a shutdown process, then three-phase alternating current voltages of A, B and C are detected, when at least one phase reaches a power supply state, one of the relays in S1, S2 and S3 is closed through a set control strategy, and then the AC-DC startup process is started;
step 5, no input voltage exists, when the DSP detects that no alternating current input or direct current input exists, all input relays are disconnected, the rear-stage power supply is shut down, and whether the storage battery supplies power to the load or not can be selected according to a formulated control strategy;
and 6, reporting and controlling the states, wherein the working states (protection functions), alarms and faults of all the power supplies can be reported in a dry contact or 485 communication mode according to the importance levels of the power supplies, and meanwhile, each state of each power supply can be set and controlled within a specification range by an upper computer.
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| CN202110422841.1A CN112994000A (en) | 2021-04-20 | 2021-04-20 | Device for supplying power to 5G base station by using street lamp power supply system and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725880A (en) * | 2021-08-11 | 2021-11-30 | 重庆瑞盾科技发展有限公司 | 5G intelligent power management system, power supply system and power supply method of stock base station |
| CN115695059A (en) * | 2022-11-16 | 2023-02-03 | 广东正力通用电气有限公司 | 5G micro base station power utilization control method, device and system of intelligent lamp pole |
-
2021
- 2021-04-20 CN CN202110422841.1A patent/CN112994000A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725880A (en) * | 2021-08-11 | 2021-11-30 | 重庆瑞盾科技发展有限公司 | 5G intelligent power management system, power supply system and power supply method of stock base station |
| CN113725880B (en) * | 2021-08-11 | 2023-11-14 | 重庆瑞盾科技发展有限公司 | 5G intelligent power management system, power supply system and power supply method of stock base station |
| CN115695059A (en) * | 2022-11-16 | 2023-02-03 | 广东正力通用电气有限公司 | 5G micro base station power utilization control method, device and system of intelligent lamp pole |
| CN115695059B (en) * | 2022-11-16 | 2023-05-26 | 广东正力通用电气有限公司 | 5G micro base station power utilization control method, device and system of intelligent lamp post |
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