CN111756105A - Communication base station power supply system for gradient utilization of retired power battery - Google Patents
Communication base station power supply system for gradient utilization of retired power battery Download PDFInfo
- Publication number
- CN111756105A CN111756105A CN201910248915.7A CN201910248915A CN111756105A CN 111756105 A CN111756105 A CN 111756105A CN 201910248915 A CN201910248915 A CN 201910248915A CN 111756105 A CN111756105 A CN 111756105A
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- power
- power supply
- battery pack
- retired
- base station
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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
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of electronic circuits, and provides a communication base station power supply system for echelon utilization of retired power batteries, which is characterized in that after a power supply signal output by commercial power is detected and voltage conversion is carried out on the power supply signal, a preset value of direct-current voltage is output to supply power to communication equipment; simultaneously, performing digital-to-analog conversion on the power supply signal according to the power utilization condition of the power grid, and then charging or stopping charging the retired power battery pack; the DC/DC power supply module is switched off when detecting that the direct-current voltage is a preset value so as to maintain the mains supply output to supply power to the communication equipment, or is switched on when detecting that the direct-current voltage is lower than the preset value so as to discharge the retired power battery pack to assist in supplying power to the communication equipment; the retired power battery pack is used for storing electric energy and releasing the electric energy. Therefore, the retired power battery pack is adopted to replace a lead-acid battery pack, the effects of long service life and high energy intensity are achieved, and a whole set of intelligent power supply management system which is low in cost and can be popularized in a large scale is formed.
Description
Technical Field
The invention belongs to the technical field of electronic circuits, and particularly relates to a communication base station power supply system for echelon utilization of retired power batteries.
Background
Communication has become a very important strategic support resource, and once communication interruption occurs, the loss caused by communication interruption is immeasurable, so that the communication base station is required to keep working for 7 × 24 hours. In practical application, the reason for the interruption of the communication base station is that the power supply of the commercial power is interrupted or the base station equipment fails, wherein most of the base station equipment failures are power supply problems in the base station, so that the base station equipment needs to be ensured not to be interrupted due to the power failure of the commercial power and not to influence the normal operation due to the power failure, a backup power system is used in the base station, and the most main component in the backup power system is an energy storage battery.
As shown in fig. 1, most of the energy storage batteries in the existing base stations are lead-acid battery packs, which have a larger difference in energy density and service life than lithium batteries, and the application of brand-new lithium batteries in communication base stations cannot be popularized in a large scale due to cost factors.
Therefore, the existing power supply technology of the communication base station has the problems that the service life is short due to the adoption of a lead-acid battery pack, or the cost is high due to the adoption of a brand-new lithium battery, and the large-scale popularization cannot be realized.
Disclosure of Invention
The invention aims to provide a communication base station power supply system for echelon utilization of retired power batteries, and aims to solve the problems that the service life is short due to the adoption of a lead-acid battery pack or the cost is high due to the adoption of a brand-new lithium battery, and large-scale popularization cannot be realized in the conventional communication base station power supply technology.
The invention provides a communication base station power supply system for echelon utilization of retired power batteries, which comprises:
the retired power battery pack is used for storing electric energy and releasing the electric energy;
the intelligent ammeter is connected with the mains supply and is used for detecting the power supply signal output by the mains supply;
the communication power supply is connected with the intelligent ammeter and used for outputting a preset direct current voltage to supply power to communication equipment after voltage conversion is carried out on the power supply signal;
the AC/DC converter is connected with the intelligent ammeter and the retired power battery pack, is controlled by the intelligent ammeter, performs digital-to-analog conversion on the power supply signal according to the power utilization condition of a power grid, and then charges or stops charging the retired power battery pack; and
and the DC/DC power supply module is connected with the communication power supply, the communication equipment and the retired power battery pack, and is used for switching off when the direct-current voltage is detected to be the preset value so as to maintain the mains supply output to supply power to the communication equipment, or switching on when the direct-current voltage is detected to be lower than the preset value so as to discharge the retired power battery pack to assist in supplying power to the communication equipment.
Preferably, the communication base station power supply system further includes:
and the DC/DC bidirectional power supply is connected with the AC/DC converter, the retired power battery pack and the substations and is used for controlling the substations to charge the retired power battery pack or controlling the retired power battery pack to carry out emergency power transmission on the substations.
Preferably, the communication base station power supply system further includes:
and the cloud server is in communication connection with the AC/DC converter, the DC/DC power supply module, the DC/DC bidirectional power supply and the retired power battery pack, and is used for acquiring the running state of the system and backing up and storing state parameters.
Preferably, the communication base station power supply system further includes:
and the monitoring platform is connected with the cloud server and used for acquiring the state parameters by accessing the cloud server and sending a control instruction through the cloud server so as to realize remote control.
Preferably, the preset value is 48V.
The invention provides a communication base station power supply system for echelon utilization of retired power batteries, which comprises a retired power battery pack, an intelligent ammeter, a communication power supply, an AC/DC converter and a DC/DC power supply module, wherein after a power supply signal output by mains supply is detected and voltage conversion is carried out on the power supply signal, a preset value of direct current voltage is output to supply power to communication equipment; simultaneously, performing digital-to-analog conversion on the power supply signal according to the power utilization condition of the power grid, and then charging or stopping charging the retired power battery pack; the DC/DC power supply module is switched off when detecting that the direct-current voltage is a preset value so as to maintain the mains supply output to supply power to the communication equipment, or is switched on when detecting that the direct-current voltage is lower than the preset value so as to discharge the retired power battery pack to assist in supplying power to the communication equipment; the retired power battery pack is used for storing electric energy and releasing the electric energy. Therefore, the retired power battery pack is adopted to replace a lead-acid battery pack, the effects of long service life and high energy intensity are achieved, a whole set of intelligent power supply management system which is low in cost and can be popularized in a large scale is formed, and the problems that the service life is short due to the adoption of the lead-acid battery pack, or the cost is high due to the adoption of a brand-new lithium battery and large-scale popularization cannot be achieved in the existing communication base station power supply technology are solved.
Drawings
Fig. 1 relates to a prior art base station power supply schematic.
Fig. 2 is a schematic diagram of a connection structure of a communication base station power supply system for echelon utilization of retired power batteries according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The communication base station power supply system for the gradient utilization of the retired power battery comprises a retired power battery pack, an intelligent electric meter, a communication power supply, an AC/DC converter and a DC/DC power supply module, wherein after a power supply signal output by mains supply is detected and voltage conversion is carried out on the power supply signal, a preset direct current voltage is output to supply power to communication equipment; simultaneously, performing digital-to-analog conversion on the power supply signal according to the power utilization condition of the power grid, and then charging or stopping charging the retired power battery pack; the DC/DC power supply module is switched off when detecting that the direct-current voltage is a preset value so as to maintain the mains supply output to supply power to the communication equipment, or is switched on when detecting that the direct-current voltage is lower than the preset value so as to discharge the retired power battery pack to assist in supplying power to the communication equipment; the retired power battery pack is used for storing electric energy and releasing the electric energy. Therefore, the retired power battery pack is adopted to replace a lead-acid battery pack, the effects of long service life and high energy intensity are achieved, and a whole set of intelligent power supply management system which is low in cost and can be popularized in a large scale is formed.
Fig. 2 shows a connection structure of a communication base station power supply system for stepped utilization of retired power batteries according to an embodiment of the present invention, and for convenience of description, only the parts related to this embodiment are shown, which is detailed as follows:
the communication base station power supply system for the gradient utilization of the retired power battery comprises a retired power battery pack 108, an intelligent electric meter 102, a communication power supply 103, an AC/DC converter 105 and a DC/DC power supply module 106.
The retired power battery 108 is used to store electrical energy and release electrical energy.
The smart meter 102 is connected to the utility power 101 and is configured to detect a power signal output by the utility power 101.
The communication power supply 103 is connected to the smart meter 102, and is configured to output a preset dc voltage to power the communication device 104 after performing voltage conversion on the power supply signal.
The AC/DC converter 105 is connected to the smart meter 102 and the decommissioned power battery pack 108, and is configured to be controlled by the smart meter 102, and perform digital-to-analog conversion on the power signal according to the power utilization condition of the power grid, and then charge or stop charging the decommissioned power battery pack 108.
The DC/DC power module 106 is connected to the communication power supply 103, the communication device 104 and the decommissioned power battery pack 108, and is configured to turn off when detecting that the DC voltage is a preset value, so as to maintain the output of the utility power 101 to supply power to the communication device 104, or turn on when detecting that the DC voltage is lower than the preset value, so as to discharge the decommissioned power battery pack 108 to assist in supplying power to the communication device 104.
As an embodiment of the present invention, the power supply system of the communication base station uses the retired power battery 108 to replace a lead-acid battery, so that the effects of long service life and high energy density are achieved. Along with the application and popularization of electric vehicles in recent years, the updating amount of power batteries of the electric vehicles caused by capacity attenuation is larger and larger, the replaced power batteries have obvious advantages compared with the traditional lead-acid batteries in the aspects of low cost, high and low temperature performance, energy density, cycle life, high charge and discharge multiplying power, low self-discharge rate, safety, environmental protection and the like, and the recycling technology is widely concerned, so that the lithium ion echelon battery energy storage system is used for replacing the original storage battery system in the station to provide a standby power supply for a 48V direct current bus in the base station, and great advantages are brought.
As an embodiment of the present invention, the power supply system of the communication base station further includes a DC/DC bidirectional power supply 107, where the DC/DC bidirectional power supply 107 is connected to the AC/DC converter 105, the retired power battery pack 108, and the plurality of substations 109, and is used to control the plurality of substations 109 to charge the retired power battery pack 108 or control the retired power battery pack 108 to perform emergency power transmission on the plurality of substations 109.
As an embodiment of the present invention, the power supply system of the communication base station further includes a cloud server 110, where the cloud server 110 is in communication connection with the AC/DC converter 105, the DC/DC power module 106, the DC/DC bidirectional power supply 107, and the retired power battery pack 108, and is used to obtain an operation state of the system, and backup and store state parameters.
As an embodiment of the present invention, the power supply system of the communication base station further includes a monitoring platform 111, where the monitoring platform 111 is connected to the cloud server 110, and is configured to obtain the state parameter by accessing the cloud server 110, and send a control instruction through the cloud server 110, so as to implement remote control.
As an embodiment of the present invention, the commercial power 101 is 380V/220V ac; the preset value is 48V, that is, the normal operating voltage of the dc bus is 48V. Therefore, when the utility power 101 outputs a power signal, the smart meter 102 detects the power signal, and the communication power 103 converts the power signal to output a 48V dc voltage to power the communication device 104.
The communication power supply 103 and the communication device 104 are both device apparatuses in the master station. The decommissioned power battery pack 108 is connected between the communication power supply 103 and the communication equipment 104, and once the commercial power 101 is powered off or the communication power supply 103 fails, 48V direct current is supplied by the decommissioned power battery pack 108 to assist in supplying power to the communication equipment 104, so that the communication equipment 104 is guaranteed to work without interruption.
As an embodiment of the present invention, the retired power battery pack 108 is used for storing and releasing electric energy, and the retired power battery pack 108 refers to a retired power battery, which has low cost, high and low temperature resistance, high energy density, long cycle life, and realizes the function of gradient utilization.
And, a DC/DC power module 106 is provided between the retired power battery pack 108 and the 48V DC bus, and the DC/DC power module 106 is configured to monitor the voltage of the 48V DC bus and control the output of the retired power battery pack 108: the DC/DC power module 106 monitors that the retired power battery pack 108 is not started to supply power to the DC bus when the voltage of the DC bus is equal to 48V; when the voltage of the direct-current bus is lower than 48V, the decommissioned power battery pack 108 is started to supply power to the direct-current bus, and the DC/DC power module 106 can adjust the voltage output by the decommissioned power battery pack 108 to 48V and then send the voltage to the 48V direct-current bus, so that the range of compatible echelon power batteries in the decommissioned power battery pack 108 is wider, and the power supply/standby machine switching is more reliable.
As an embodiment of the present invention, the commercial power 101 is converted by the AC/DC converter 105 and then charges the decommissioned power battery pack 108, the smart meter 102 is further installed at an access port of the commercial power 101, the smart meter 102 is further connected to the AC/DC converter 105 in a communication manner, and the AC/DC converter 105 is started to charge the decommissioned power battery pack 108 or the AC/DC converter 105 is turned off to charge the decommissioned power battery pack 108 according to the power consumption status of the power grid, specifically: the power battery pack 108 is charged by starting when the electric quantity is full, and the charging is closed when the electric quantity is insufficient, so that the peak clipping and valley filling effects are realized, and the requirement on commercial power capacity is reduced in the base station design stage.
As an embodiment of the present invention, the retired power battery pack 108 is further connected to a direct current remote supply system (direct current remote supply is a plurality of sub-stations 109 around the parent station), and a DC/DC bidirectional power supply 107 is provided between the retired power battery pack 108 and the remote sub-station, so that the plurality of sub-stations 109 at the remote end can charge the retired power battery pack 108, or the retired power battery pack 108 can perform emergency power transmission for the plurality of sub-stations 109.
Because the whole power battery pack is provided with the BMS, when the whole power battery pack is used as the retired power battery pack 108, the BMS can be in communication connection with the DC/DC power module 106, the AC/DC converter 105 and the DC/DC bidirectional power supply 107, the whole power battery pack can be directly used without recombination, and the use cost is reduced. Of course, the retired power battery pack 108, the smart meter 102, the communication power supply 103, the AC/DC converter 105, and the DC/DC power module 106 are all existing devices or modules.
The operation principle of the communication base station power supply system for the retired power battery echelon utilization is described as follows with reference to fig. 2:
firstly, a power supply signal output by a mains supply 101 is subjected to voltage conversion by a communication power supply 103 and then supplies power to a communication device 104; and, when the commercial power 101 is full, the commercial power 101 charges the retired power battery 108 through the AC/DC converter 105.
Secondly, when the commercial power 101 is powered off or the communication power supply 103 fails, 48V direct current is supplied by the retired power battery pack 108 to perform auxiliary power supply on the communication equipment 104, so as to ensure that the communication equipment 104 does not interrupt work.
In addition, a DC/DC bidirectional power supply 107 is arranged between the retired power battery pack 108 and the remote substation, so that a plurality of remote substations 109 can charge the retired power battery pack 108, and the retired power battery pack 108 can carry out emergency power transmission for the plurality of substations 109, thereby realizing the effect of electric quantity calling and better balancing the electric energy utilization efficiency.
Furthermore, the smart meter 102, the DC/DC power module 106, the AC/DC converter 105, the DC/DC bidirectional power supply 107 and the retired power battery pack 108 are all in communication connection with the cloud server 110, so that the system running state and data are uploaded to the cloud server 110 for processing, backup and storage, a manager can access the cloud server 110 at a remote place to obtain corresponding information, and can also send a control instruction through the cloud server 110, thereby realizing remote control.
To sum up, the communication base station power supply system for echelon utilization of retired power batteries provided by the embodiment of the invention comprises a retired power battery pack, an intelligent electric meter, a communication power supply, an AC/DC converter and a DC/DC power supply module, wherein after detecting a power supply signal output by mains supply and performing voltage conversion on the power supply signal, a preset value of direct current voltage is output to supply power to communication equipment; simultaneously, performing digital-to-analog conversion on the power supply signal according to the power utilization condition of the power grid, and then charging or stopping charging the retired power battery pack; the DC/DC power supply module is switched off when detecting that the direct-current voltage is a preset value so as to maintain the mains supply output to supply power to the communication equipment, or is switched on when detecting that the direct-current voltage is lower than the preset value so as to discharge the retired power battery pack to assist in supplying power to the communication equipment; the retired power battery pack is used for storing electric energy and releasing the electric energy. Therefore, the retired power battery pack is adopted to replace a lead-acid battery pack, the effects of long service life and high energy intensity are achieved, a whole set of intelligent power supply management system which is low in cost and can be popularized in a large scale is formed, and the problems that the service life is short due to the adoption of the lead-acid battery pack, or the cost is high due to the adoption of a brand-new lithium battery and large-scale popularization cannot be achieved in the existing communication base station power supply technology are solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A communication base station power supply system that retires power battery echelon utilization, its characterized in that, communication base station power supply system includes:
the retired power battery pack is used for storing electric energy and releasing the electric energy;
the intelligent ammeter is connected with the mains supply and is used for detecting the power supply signal output by the mains supply;
the communication power supply is connected with the intelligent ammeter and used for outputting a preset direct current voltage to supply power to communication equipment after voltage conversion is carried out on the power supply signal;
the AC/DC converter is connected with the intelligent ammeter and the retired power battery pack, is controlled by the intelligent ammeter, performs digital-to-analog conversion on the power supply signal according to the power utilization condition of a power grid, and then charges or stops charging the retired power battery pack; and
and the DC/DC power supply module is connected with the communication power supply, the communication equipment and the retired power battery pack, and is used for switching off when the direct-current voltage is detected to be the preset value so as to maintain the mains supply output to supply power to the communication equipment, or switching on when the direct-current voltage is detected to be lower than the preset value so as to discharge the retired power battery pack to assist in supplying power to the communication equipment.
2. The communication base station power supply system of claim 1, wherein the communication base station power supply system further comprises:
and the DC/DC bidirectional power supply is connected with the AC/DC converter, the retired power battery pack and the substations and is used for controlling the substations to charge the retired power battery pack or controlling the retired power battery pack to carry out emergency power transmission on the substations.
3. The communication base station power supply system of claim 1, wherein the communication base station power supply system further comprises:
and the cloud server is in communication connection with the AC/DC converter, the DC/DC power supply module, the DC/DC bidirectional power supply and the retired power battery pack, and is used for acquiring the running state of the system and backing up and storing state parameters.
4. The communication base station power supply system of claim 3, wherein the communication base station power supply system further comprises:
and the monitoring platform is connected with the cloud server and used for acquiring the state parameters by accessing the cloud server and sending a control instruction through the cloud server so as to realize remote control.
5. The system of claim 1 wherein said predetermined value is 48V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910248915.7A CN111756105A (en) | 2019-03-29 | 2019-03-29 | Communication base station power supply system for gradient utilization of retired power battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910248915.7A CN111756105A (en) | 2019-03-29 | 2019-03-29 | Communication base station power supply system for gradient utilization of retired power battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644736A (en) * | 2021-07-01 | 2021-11-12 | 广西大学 | Multisource power supply system of 5G base station intelligent microgrid |
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2019
- 2019-03-29 CN CN201910248915.7A patent/CN111756105A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644736A (en) * | 2021-07-01 | 2021-11-12 | 广西大学 | Multisource power supply system of 5G base station intelligent microgrid |
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