CN109038699A - A kind of management method of base station power system and DC power supply multiple groups battery - Google Patents

A kind of management method of base station power system and DC power supply multiple groups battery Download PDF

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Publication number
CN109038699A
CN109038699A CN201710436933.9A CN201710436933A CN109038699A CN 109038699 A CN109038699 A CN 109038699A CN 201710436933 A CN201710436933 A CN 201710436933A CN 109038699 A CN109038699 A CN 109038699A
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power
unit
group
battery
power output
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罗伟昌
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ZTE Corp
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ZTE Corp
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/50Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
    • H02J7/575Parallel/serial switching of connection of batteries to charge or load circuit

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本文公开了一种基站电源系统及直流电源多组电池的管理方法,涉及通讯基站供电用直流电源领域。本文公开的基站电源系统,包括监控管理单元,以及依次连接的功率输入分配单元,功率变换单元、功率输出分配单元组和并联控制单元;其中,功率变换单元中每个功率变换模块分别与所述功率输出分配单元组中一组功率输出分配单元的输入端相连,各组功率输出分配单元的输入端还分别连接一组电池,各组功率输出分配单元的输出端均与所述并联控制单元连接涉及通讯基站供电用直流电源领域。本申请技术方案提高了电源系统的电池管理能力,可以实现通讯基站不同电池的个性管理。

This paper discloses a base station power supply system and a management method for multiple sets of batteries of the DC power supply, and relates to the field of DC power supplies for power supply of communication base stations. The base station power supply system disclosed in this paper includes a monitoring and management unit, a power input distribution unit connected in sequence, a power conversion unit, a power output distribution unit group, and a parallel control unit; wherein, each power conversion module in the power conversion unit is connected to the The input ends of a group of power output distribution units in the power output distribution unit group are connected, the input ends of each group of power output distribution units are respectively connected to a group of batteries, and the output ends of each group of power output distribution units are connected to the parallel control unit The invention relates to the field of DC power supply for communication base station power supply. The technical solution of the application improves the battery management capability of the power supply system, and can realize the individual management of different batteries of the communication base station.

Description

A kind of management method of base station power system and DC power supply multiple groups battery
Technical field
The present invention relates to communication base station power supply DC power supply field more particularly to multiple groups battery groups and management in parallel Technology.
Background technique
The power supply source of existing communication base station includes alternating current, generator, solar energy, wind energy, battery etc., these energy turn Changing and managing is completed by DC power system, and communication base station power supply block diagram is as shown in Figure 1.It is 1. DC power supply in figure System, comprising: monitoring management unit 2., power input allocation unit 3., power conversion unit 4., power output allocation unit ⑤.Power input allocation unit realization different input energy sources are accessed and are distributed, power conversion unit can be AC/DC or Input energy sources are converted to the negative 48V direct current of communication base station by person's DC/DC unit, and power output allocation unit realizes that negative 48V is straight The output of galvanic electricity distributes and accesses battery and load, monitoring management unit collect power input allocation unit, power conversion unit, The information of power output allocation unit, and control is managed to them.
Existing DC power system can use various energy resources, including alternating current, generator, wind energy, solar energy, battery Deng, and support various energy resources access system simultaneously, such as use the oil-electricity system of generator and mains-supplied, using solar energy and The gloss oil system of generator powered, using the honourable oil system of solar energy and generator and powered by wind energy.
Currently, a problem existing for communication base station is: being had to when in communication base station power supply system using multiple groups battery Use same brand, identical new and old and same type multiple groups battery.Not so in system charging process due to charging coefficient not Equally cause over-charging of battery or long-term undercharge, shortens the service life of battery;During discharge due to every group of electricity The discharge curve in pond is inconsistent, there are problems that mutually charging between each group battery in discharge process.And due between battery It mutually charges uncontrolled, cause cell damage or shortens the working life.
Simultaneously because cannot with suitable maximum current give battery pack charging, battery pack cannot maximum energy storage, Energy waste is caused in system using oil machine, solar energy or wind power generation.
Existing DC power system uses modularized design, and power input allocation unit, power conversion unit, power are defeated Allocation unit out, all using 19 inches of subrack designs of standard, it may be convenient to access and removal system, but existing power conversion list Member only supports single group flow equalizing function, cannot achieve multiple groups voltage and current and is respectively set.
Existing DC power system also supports the energy input access at scene, and the system for such as using mains-supplied only needs Increase DC/DC power conversion modules in systems, while configuring solar energy pole plate to realize on the basis of not increase system Utilization to solar energy.AC/DC module is added in systems, while configuring blower, it can be on the basis of not increase system Realize the utilization to wind energy.
Existing DC power system multiple groups battery is in parallel in systems, carries out the battery current and electricity of every group of battery respectively Pressure detection, when battery management, are managed according to the battery pack of minimum charge current, it can be ensured that and every group of battery does not overcharge, but It is to be unable to ensure every group of battery to charge all in accordance with most suitable voltage and current.
Existing DC power system generally comprises floating charge to battery management and fills, the even different product of different type battery The equal float charge voltage of the battery of board is likely to inconsistent, overtension and too low will all cause cell damage.
Such as in the valve-control sealed lead acid battery generally used, float voltage setting is too low, battery is chronically at Charge less electricity condition not only can form irreversible sulfation in accumulator pole intralamellar part, but also can be in active material and plate High-resistance barrier is formed between grid, makes internal resistance increase, the capacity decline of battery.Float voltage setting is excessively high, and battery is long Phase is in overcharge condition, battery charging current can be made to increase, the O2 gas that the H2 and anode that battery terminal negative is precipitated are precipitated It is difficult to all be combined to H2O again, causes battery dehydration, grid corrosion accelerates, and service life terminates in advance.The feelings of normal floating charge Under condition, charging current is minimum, and the O2 that the H2 and anode that battery terminal negative is precipitated are precipitated almost is combined to H2O.When filling If electric current is excessive, gas is difficult to chemical combination again, will lead to internal storage battery air pressure increase, causes drain tap to be opened, cause to store Battery dehydration.Therefore, it is filled or floating charge when will limit the charging current of battery in battery, referred to as " charging current limiter value ". In most cases, cut-off current is between 0.05C~0.25C.
In the field of communications, in order to after exchange has a power failure battery can maintain longer time, the general battery that configures Capacity is larger, and the discharge rate of battery is most of all in 0.02~0.05C within the scope of this.
If existing direct voltage system (including and is not limited to using different product using the battery of multiple groups different performance Board, different type and different capabilities) when, battery management can only be by the battery of minimum capacity or the battery of minimum charging coefficient As unified management object, due to that cannot be charged with suitable maximum current to battery pack, battery pack cannot store up to the greatest extent Can, energy waste is caused in the system using oil machine, solar energy or wind power generation.
If existing direct voltage system is used in parallel using the battery of multiple groups different performance, due to the electric discharge of every group of battery Curve is inconsistent, there are between each group battery mutual charge and discharge in discharge process and due to mutually charging between battery It is uncontrolled, it cell damage or shortens the working life.
Summary of the invention
Provided herein is a kind of base station power system and the management methods of DC power supply multiple groups battery, can solve the relevant technologies The problem of being had to when middle multiple groups battery using same brand, identical new and old and same type multiple groups battery.
Disclosed herein is a kind of base station power systems, including monitoring management unit and sequentially connected power input point With unit, power conversion unit, power output allocation unit group and Parallel Control unit, the monitoring management unit and power are defeated Enter allocation unit, power conversion unit, power output allocation unit group, Parallel Control unit are connected;
Wherein, the power conversion unit includes N number of power conversion modules, and the power output allocation unit group includes simultaneously The N group power output allocation unit of connection;
In the power conversion unit each power conversion modules respectively with one group in the power output allocation unit group The input terminal of power output allocation unit is connected, and the input terminal of each group power output allocation unit is also respectively connected with one group of battery, The output end of each group power output allocation unit is connect with the Parallel Control unit:
The Parallel Control unit is realized and is distributed each group power output in parallel in the power output allocation unit group Current detecting, load access between unit, and realize the parallel function of the power output allocation unit group.
Optionally, in above system, the power conversion unit is AC/DC or DC/DC, input energy sources is converted to logical Interrogate the negative 48V direct current of base station equipment.
Optionally, in above system, each power conversion modules are by the monitoring management unit in the power conversion unit Grouping setting voltage, threshold currents and packet number.
Optionally, in above system, the power output allocation unit group, realize negative 48V direct current output distribution with And short-circuit or overvoltage protection, and access battery and load.
Optionally, in above system, the Parallel Control unit, including voltage and current detection circuit, preferential output control Circuit and prevent mutual charging circuit between battery;
The voltage and current detection circuit monitors voltage between different groups of power output allocation unit in real time and with load Situation;
The preferential output control circuit, according to the electricity between the power output allocation unit of the different groups monitored in real time It presses and with situation is carried, controls main battery preferentially band load according to the requirement of monitoring management unit;
It is described to prevent mutual charging circuit between battery, according to different battery pack parallel connection powering loads, and prevent not With mutually charging between battery pack.
There is disclosed herein a kind of management methods of DC power supply multiple groups battery, comprising:
Base station power system accesses one or more energy by power input allocation unit, turns by power conversion unit It turns to negative direct current, negative 48V direct current and each group battery and is connected to Parallel Control unit by power output allocation unit group, Control according to monitoring management unit is that load supplying and battery charge;
Wherein, the power conversion unit includes N number of power conversion modules, and the power output allocation unit group includes simultaneously The N group power output allocation unit of connection;
In the power conversion unit each power conversion modules respectively with one group in the power output allocation unit group The input terminal of power output allocation unit is connected, and the input terminal of each group power output allocation unit is also respectively connected with one group of battery, The output end of each group power output allocation unit is connect with the Parallel Control unit.
Optionally, in the above method, the power conversion unit uses AC/DC or DC/DC, by the energy conversion of input For the negative 48V direct current of communication base station equipment.
Optionally, the above method further include:
The voltage of each power conversion modules, threshold currents in the power conversion unit is arranged in the monitoring management unit grouping And packet number.
Optionally, the above method further include:
Voltage and current detection circuit in the Parallel Control unit, monitor in real time different groups power output allocation unit it Between voltage and with carry situation;
Preferential output control circuit in the Parallel Control unit, according to the power output point of the different groups monitored in real time With the voltage between unit and with situation is carried, according to the requirement control main battery of monitoring management unit preferentially with load.
Optionally, the above method further include:
The Parallel Control unit prevents between different battery packs mutually according to different battery pack parallel connection powering loads Charging.
Technical scheme provides the scheme of a kind of DC power supply multiple groups battery group and management in parallel, improves electricity The battery management ability of source system, may be implemented the personality management of communication base station difference battery, straight in a set of operational process Stream power-supply system can be used different brands, different capabilities, different type and Bu Tong new and old various batteries.
Detailed description of the invention
Fig. 1 is existing DC power system block schematic illustration;
Fig. 2 is the power-supply system schematic diagram of two groups of battery groups and management in parallel in case study on implementation of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment pair Technical solution of the present invention is described in further detail.It should be noted that in the absence of conflict, embodiments herein and Feature in embodiment can be arbitrarily combined with each other.
Present inventor has to when finding in communication base station power supply system using multiple groups battery using same brand, phase With new and old and same type multiple groups battery.Not so cause over-charging of battery since charging coefficient is different in system charging process Or long-term undercharge, the service life of battery can be shortened;During discharge since the discharge curve of every group of battery is different It causes, there are problems that mutually charging between each group battery in discharge process.And it is uncontrolled due to mutually charging between battery, It will cause cell damage or shorten the working life.Simultaneously because cannot be charged with suitable maximum current to battery pack, battery Group cannot maximum energy storage, cause energy waste in the system using oil machine, solar energy or wind power generation.
Based on above-mentioned discovery, the present embodiment provides a kind of base station power systems, including monitoring management unit, power input point With unit, power conversion unit, power output allocation unit group and Parallel Control unit.
Monitoring management unit and power input allocation unit, power conversion unit, power output allocation unit group and in parallel Control unit is all connected with, and mainly collects power input allocation unit, power conversion unit, power output allocation unit, parallel connection The information of control unit, and control is managed to them.
Specifically, monitoring management unit may include Ethernet interface and all the way RS232 interface all the way, be used for backstage group Net, so as to be monitored management to power-supply system by backstage.
Power input allocation unit is accessed and is distributed for realizing to different input energy sources, input termination alternating current, The input of the energy such as generator, solar energy, wind energy, output termination power conversion unit;
Power conversion unit can be AC/DC DC/DC unit, set for input energy sources to be converted to communication base station Spare negative 48V direct current, input termination power input allocation unit, output termination power output allocation unit, wherein base Power-supply system of standing interior power includes how many groups of batteries, and power conversion unit just includes how many a power conversion modules, i.e. a function Rate conversion module corresponds to the one power output allocation unit transformation of power output allocation unit to provide accordingly for corresponding battery Operation.For different battery packs, it can be grouped by monitoring management unit and the corresponding power conversion modules of the battery pack are set Voltage, threshold currents and packet number.
In addition, the power conversion unit can also be required according to the control of monitoring management unit, different capacity output is realized Parallel-current equalization function between allocation unit group reaches the power conversion unit between different capacity output allocation unit group Output is balanced.It may also be noticed that being, power conversion unit can also become whole power when not needing to carry out battery group management Change the mold block parallel output.
Power output allocation unit group is realized output distribution and short circuit or the overvoltage protection of negative 48V direct current, and is accessed Battery and load, input termination power conversion unit and battery, output termination Parallel Control unit.Wherein, base station power System interior power includes how many groups of batteries, and power output allocation unit group just includes how many groups of power output allocation units, i.e., one A power output allocation unit corresponds to one group of battery and provides power output distribution control.
Parallel Control unit, including voltage and current detection circuit, preferential output control circuit and prevent between battery mutually Charging circuit, it is defeated for realizing current detecting, load access and grouping and parallel function between power output allocation unit group Enter termination power output allocation unit group, exports terminating load and another group of power output allocation unit group.
Wherein, voltage and current detection circuit, voltage between different groups can be monitored in real time and with carrying situation;
Preferential output control circuit, can (control i.e. under monitoring management unit refers to according to the requirement of monitoring management unit Enabling) preferentially band carries control main battery (one group of battery in i.e. pre-defined multiple groups battery is main battery);
Mutual charging circuit between battery is prevented, having prevents mutual charging circuit between battery pack, realizes different groups of electricity Pond parallel connection powering load, and can prevent from mutually charging between battery pack.
Base station power system interior power is divided into advance it should be noted that battery pack involved in the application refers to Multiple battery packs, each battery pack may include a battery, or including multiple same brands, identical new and old program, identical Multiple batteries of type.This application is not particularly limited.
In addition, the present embodiment also provides a kind of management method of DC power supply multiple groups battery, comprising:
Base station power system accesses one or more energy by power input allocation unit, turns by power conversion unit It turns to negative direct current, negative 48V direct current and each group battery and is connected to Parallel Control unit by power output allocation unit group, Control according to monitoring management unit is that load supplying and battery charge;
Wherein, power conversion unit includes N number of power conversion modules, and the power output allocation unit group includes in parallel N group power output allocation unit;
In power conversion unit each power conversion modules respectively with one group of power in the power output allocation unit group The input terminal for exporting allocation unit is connected, and the input terminal of each group power output allocation unit is also respectively connected with one group of battery, each group The output end of power output allocation unit is connect with the Parallel Control unit.
Wherein, the above method can rely on above-mentioned base station power system and realize, therefore the specific implementation details of the above method can join See the related content of above-mentioned base station power system, details are not described herein.
Illustrate the specific implementation of above scheme with reference to the accompanying drawing.
Fig. 2 show the specific example of the application, the base station power system schematic of two groups of battery group management.It should Base station power system include monitoring management unit (22), power input allocation unit (23), power conversion unit (24A) and (24B), power output allocation unit group A (25A), power output allocation unit group B (25B), Parallel Control unit (26).Power Allocation unit group A connection battery pack 1, power output allocation unit group B connection battery pack 2 are exported, while power output distribution is single Tuple connects Parallel Control unit.
Monitoring management unit connects power input allocation unit, power conversion unit, power output allocation unit, simultaneously respectively Join control unit, carries out signal acquisition, battery management, system control.
Power input allocation unit realizes access and distribution to different input energy sources.Its input terminal includes multichannel AC Input is spaced apart to be switched with protective device and switching, is also spaced apart comprising multi-channel DC input, is connect alternating current, generator, solar energy, wind energy Equal energy input, output end includes power interface plate, for connecing power conversion unit.
Power conversion unit may include AC/DC module and DC/DC module, and it is negative that input energy sources are converted to communication base station use 48V direct current.It inputs termination power input allocation unit, and output termination power output allocation unit can be according to monitoring The control instruction of administrative unit controls each power conversion modules, to realize the parallel connection electricity between different capacity output allocation unit group Equalization function is flowed, and whole power conversion unit parallel current-sharing exports when not needing to be grouped management.In this example, function Rate converter unit is divided into two power conversion modules (4A) and (4B).
Power output allocation unit group A realizes that the output of negative 48V direct current distributes and accesses battery and load.It is inputted Termination power converter unit, output end includes protective device, is spaced apart, for connecing Parallel Control unit and battery pack 1;
In this example, battery pack 1 is used as main battery, can configure cycle-index height, the big circular form battery of charging current Main battery as heat recovery.The main battery is reserved when configuring power conversion unit grouping simultaneously suitably to fill Electric current loading electric current;
Power output allocation unit group B realizes that the output of negative 48V direct current distributes and accesses battery and load.It is inputted Termination power converter unit, output end include be spaced apart, protective device, for connecing Parallel Control unit and battery pack 2.
Specifically, Parallel Control unit may include voltage and current detection circuit, preferential output control circuit and prevent electricity Mutual charging circuit between pond.
The course of work of above-mentioned base station power system is described in detail again below.
The one or more energy such as alternating current, generator, solar energy, wind energy is empty by the input of power input allocation unit It opens and switches switch access system, and power conversion unit is connected to by power interface plate, be converted by AC/DC and DC/DC Negative 48V direct current, negative 48V direct current are connected to Parallel Control unit and battery by being spaced apart for power output allocation unit, are negative Carry power supply and battery charging.
Voltage controls in charging process: since Parallel Control unit prevents mutual charging circuit between battery pack, i.e., 2 groups It will not mutually power between battery, and 2 groups of batteries can only power to the load.Monitoring management unit can be respectively according to battery pack 1 It requires to charge respectively with the float charge voltage of battery pack 2, makes 2 groups of batteries that can charge with most suitable voltage.As primary electricity Its anti-circnit NOT can be bypassed by contactor, be made as the energy loss between primary battery pack 1 and load more by pond group 1 It is small.
Current control in charging process: monitoring management list is sent on Parallel Control unit detection group A and group B load current value Member.Monitoring management unit controls A group power conversion unit cut-off current according to load A group electric current and 1 performance related parameter of battery, and Dynamic updates the cut-off current.Calculation formula is as follows:
Power conversion unit group A cut-off current=(load A group electric current+1 capacity of charging current ratio × battery pack)/A group function Rate converter unit quantity.
Similarly, monitoring management unit controls B group power conversion list according to load B group electric current and 2 performance related parameter of battery First cut-off current.
Power conversion unit group 1 is respectively set according to the battery management demand of various batteries for monitoring management unit and power becomes The output voltage and electric current of unit group 2 are changed, realizes the separated charging of two groups of batteries, it can be according to the maximum charge system of respective battery Number charges, and realizes the abundant storage of the energy.
If exchange has a power failure in short-term in charging process, battery pack 1 and battery pack 2 are supplied by Parallel Control unit to load Electricity, battery pack 1 are used as main battery, and administrative unit in parallel bypasses its anti-circnit NOT by D.C. contactor, obtain compared with battery pack 2 Lower loop pressure drop realizes the preferential powering load of main battery.
After battery is full of, monitoring management unit control system disconnects energy input, is load supplying by battery, at this time may be used It controls and accesses administrative unit in parallel, the few standby electricity of another set cycle-index as the battery of primary cycle-index high circulation type Type battery can disconnect and the connection of administrative unit in parallel;The contactor closure being attached thereto in administrative unit in parallel is controlled simultaneously, Load circuit pressure difference is reduced to which battery is participated in energy circulation, reduces the runing time of generator, the band for improving generator carries Rate reduces oil consumption.Battery can store extra solar energy in solar energy abundance simultaneously, and when solar energy is insufficient, battery is put Electricity, to use solar energy resources to greatest extent.
When circular form battery discharge is lower to voltage, Parallel Control unit controls A group bypass D.C. contactor and disconnects, and prevents It only mutually charges in battery discharge procedure, then controls B group bypass contactor closure, while monitoring management unit is closed another set Cycle-index lacks storing electricity battery and accesses administrative unit in parallel, powers off load equipment not, extends system charging time.
When 2 groups of batteries all discharge into low-voltage and system energy input is insufficient, system can be according to load important degree Lower electric protection is carried out, disconnects load successively to protect battery.
Monitoring management unit is according to battery capacity, cell voltage, battery current, battery charging coefficient, the internal resistance of cell, battery The battery managements demand control Parallel Control such as temperature-compensating unit, power conversion unit and power output allocation unit group grouping and Parallel operation realizes the grouping and management in parallel of battery.
Monitoring management unit equally can rationally divide according to battery SOC and battery SOH, preestimating battery cycles left number With preferentially use battery, make 2 groups at the same time section reach maximum service life (MSL).Electricity can be replaced when system maintenance at the same time System maintenance number is reduced in pond.
Since the battery between respectively realizes grouping management, circular form and standby can be configured in same DC power supply simultaneously Two kinds of batteries of electric type had not only met high efficiency of energy storage but also had met the high reliability of communication power supply power supply.
It is noted that two groups of batteries that the battery group of the application and management in parallel are not limited merely in this example Power-supply system, the application can be extended to the power-supply system of multiple groups battery.
The DC power system energy input of the application is also not limited to generator, the energy input of every power-supply system It can include one or more of alternating current, generator, solar energy, wind energy.
The acquisition of all of above information and the management of battery and the control of system are realized by monitoring management unit , there are also 1 road Ethernet interfaces and 1 tunnel RS232 interface for monitoring management unit, for realizing backstage networking, so as to pass through More easily realize the monitoring and management of power-supply system in backstage.
From above-described embodiment as can be seen that technical scheme, can be used in new site two groups of different brands and The battery while parallel operation of different performance;It can use the original battery of old website, it is standby that one group of new battery raising system can be increased The electric time improves the load capacity and functional reliability of DC power system, reduces build a station cost and the dilatation cost of website.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program Related hardware is completed, and described program can store in computer readable storage medium, such as read-only memory, disk or CD Deng.Optionally, one or more integrated circuits can be used also to realize in all or part of the steps of above-described embodiment.Accordingly Ground, each module/unit in above-described embodiment can take the form of hardware realization, can also use the shape of software function module Formula is realized.The application is not limited to the combination of the hardware and software of any particular form.
The above, preferred embodiments only of the invention, is not intended to limit the scope of the present invention.It is all this Within the spirit and principle of invention, any modification, equivalent substitution, improvement and etc. done should be included in protection model of the invention Within enclosing.

Claims (10)

1.一种基站电源系统,包括监控管理单元,以及依次连接的功率输入分配单元,功率变换单元、功率输出分配单元组和并联控制单元,所述监控管理单元与功率输入分配单元,功率变换单元、功率输出分配单元组、并联控制单元均相连;1. A base station power supply system, comprising a monitoring management unit, and a power input distribution unit connected in sequence, a power conversion unit, a power output distribution unit group and a parallel control unit, the monitoring management unit and a power input distribution unit, a power conversion unit , power output distribution unit group, and parallel control unit are all connected; 其中,所述功率变换单元包括N个功率变换模块,所述功率输出分配单元组包括并联的N组功率输出分配单元;Wherein, the power conversion unit includes N power conversion modules, and the power output distribution unit group includes N groups of parallel connected power output distribution units; 所述功率变换单元中每个功率变换模块分别与所述功率输出分配单元组中一组功率输出分配单元的输入端相连,各组功率输出分配单元的输入端还分别连接一组电池,各组功率输出分配单元的输出端均与所述并联控制单元连接:Each power conversion module in the power conversion unit is respectively connected to the input end of a group of power output distribution units in the power output distribution unit group, and the input ends of each group of power output distribution units are respectively connected to a group of batteries. The output ends of the power output distribution unit are all connected to the parallel control unit: 所述并联控制单元,实现对所述功率输出分配单元组中并联的各组功率输出分配单元之间的电流检测、负载接入,以及实现所述功率输出分配单元组的并联功能。The parallel control unit realizes the current detection and load connection among the parallel groups of power output distribution units in the power output distribution unit group, and realizes the parallel connection function of the power output distribution unit group. 2.如权利要求1所述的系统,其特征在于,2. The system of claim 1, wherein: 所述功率变换单元为AC/DC或者DC/DC,将输入能源转换为通讯基站设备用负48V直流电。The power conversion unit is AC/DC or DC/DC, which converts the input energy into negative 48V direct current for communication base station equipment. 3.如权利要求2所述的系统,其特征在于,3. The system of claim 2, wherein: 所述功率变换单元中各功率变换模块由所述监控管理单元分组设置电压、限电流和分组号。Each power conversion module in the power conversion unit is grouped by the monitoring and management unit to set voltage, current limit and group number. 4.如权利要求2所述的系统,其特征在于,4. The system of claim 2, wherein 所述功率输出分配单元组,实现负48V直流电的输出分配以及短路或过压保护,并接入电池和负载。The power output distribution unit group realizes output distribution of negative 48V direct current and short-circuit or overvoltage protection, and is connected to batteries and loads. 5.如权利要求1至4任一项所述的系统,其特征在于,5. The system according to any one of claims 1 to 4, characterized in that, 所述并联控制单元,包括电压电流检测电路、优先输出控制电路和防止电池之间相互充电电路;The parallel control unit includes a voltage and current detection circuit, a priority output control circuit and a circuit for preventing mutual charging between batteries; 所述电压电流检测电路,实时监控不同组的功率输出分配单元之间的电压和带载情况;The voltage and current detection circuit monitors in real time the voltage and loading conditions between different groups of power output distribution units; 所述优先输出控制电路,根据实时监控到的不同组的功率输出分配单元之间的电压和带载情况,按照监控管理单元的要求控制主用电池优先带载;The priority output control circuit controls the priority load of the main battery according to the requirements of the monitoring and management unit according to the real-time monitoring of the voltage and loading conditions between different groups of power output distribution units; 所述防止电池之间相互充电电路,按照不同电池组并联给负载供电,以及防止不同电池组之间相互充电。The circuit for preventing mutual charging between batteries supplies power to loads according to the parallel connection of different battery groups, and prevents mutual charging between different battery groups. 6.一种直流电源多组电池的管理方法,包括:6. A method for managing multiple sets of batteries in a DC power supply, comprising: 基站电源系统通过功率输入分配单元接入一种或多种能源,经过功率变换单元转化为负直流电,负48V直流电以及各组电池经过功率输出分配单元组连接到并联控制单元,按照监控管理单元的控制为负载供电和电池充电;The power supply system of the base station is connected to one or more energy sources through the power input distribution unit, which is converted into negative DC power through the power conversion unit, and the negative 48V DC power and each group of batteries are connected to the parallel control unit through the power output distribution unit group. According to the monitoring and management unit Controls powering the load and charging the battery; 其中,所述功率变换单元包括N个功率变换模块,所述功率输出分配单元组包括并联的N组功率输出分配单元;Wherein, the power conversion unit includes N power conversion modules, and the power output distribution unit group includes N groups of parallel connected power output distribution units; 所述功率变换单元中每个功率变换模块分别与所述功率输出分配单元组中一组功率输出分配单元的输入端相连,各组功率输出分配单元的输入端还分别连接一组电池,各组功率输出分配单元的输出端均与所述并联控制单元连接。Each power conversion module in the power conversion unit is respectively connected to the input end of a group of power output distribution units in the power output distribution unit group, and the input ends of each group of power output distribution units are respectively connected to a group of batteries. The output ends of the power output distribution units are all connected to the parallel control unit. 7.如权利要求6所述的方法,其特征在于,7. The method of claim 6, wherein, 所述功率变换单元采用AC/DC或者DC/DC,将输入的能源转换为通讯基站设备用负48V直流电。The power conversion unit adopts AC/DC or DC/DC to convert the input energy into negative 48V direct current for communication base station equipment. 8.如权利要求7所述的方法,其特征在于,该方法还包括:8. The method of claim 7, further comprising: 所述监控管理单元分组设置所述功率变换单元中各功率变换模块的电压、限电流和分组号。The monitoring and management unit sets the voltage, current limit and group number of each power conversion module in the power conversion unit in groups. 9.如权利要求6至8任一项所述的方法,其特征在于,该方法还包括:9. The method according to any one of claims 6 to 8, wherein the method further comprises: 所述并联控制单元中电压电流检测电路,实时监控不同组的功率输出分配单元之间的电压和带载情况;The voltage and current detection circuit in the parallel control unit monitors in real time the voltage and loading conditions between different groups of power output distribution units; 所述并联控制单元中优先输出控制电路,根据实时监控到的不同组的功率输出分配单元之间的电压和带载情况,按照监控管理单元的要求控制主用电池优先带载。The priority output control circuit in the parallel control unit controls the priority load of the primary battery according to the requirements of the monitoring and management unit according to the real-time monitored voltage and loading conditions between different groups of power output distribution units. 10.如权利要求9所述的方法,其特征在于,该方法还包括:10. The method of claim 9, further comprising: 所述并联控制单元按照不同电池组并联给负载供电,并防止不同电池组之间相互充电。The parallel control unit supplies power to the load according to the parallel connection of different battery groups, and prevents the different battery groups from charging each other.
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