CN112531649B - Control method for storage battery sharing manager - Google Patents
Control method for storage battery sharing manager Download PDFInfo
- Publication number
- CN112531649B CN112531649B CN202011439672.4A CN202011439672A CN112531649B CN 112531649 B CN112531649 B CN 112531649B CN 202011439672 A CN202011439672 A CN 202011439672A CN 112531649 B CN112531649 B CN 112531649B
- Authority
- CN
- China
- Prior art keywords
- current
- batteries
- group
- mode
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a storage battery sharing manager control method, which comprises the steps of accessing all batteries into a system, and then collecting relevant data in real time by using a DSP (digital signal processor) of a storage battery sharing manager; the direct current output adopts a double-loop control strategy; dividing the system discharge current to calculate the average discharge current of each group of batteries of the system, carrying out average operation on the discharge current of each group of batteries, and then carrying out difference calculation on the average discharge current of each group of batteries and the discharge current of each group of batteries to calculate a current difference value; the current difference average is multiplied by a scaling factor and then superimposed on the voltage loop. According to the invention, the DSP in the control system is used for detecting the charge-discharge current, the battery voltage, the system output voltage and the system charge-discharge current of each group of batteries, and the working mode is divided into four modes, namely a standing mode, a charging mode, a discharging mode and a protection mode, so that the system can be ensured to stably operate, and the circulation problem of the system batteries can be avoided.
Description
Technical Field
The invention relates to the technical field of battery sharing managers of communication base stations, in particular to a control method of a storage battery sharing manager.
Background
With the economic development of social economy, the mobile communication base station plays an extremely important role in information transmission in China and daily life of people, the storage battery is key equipment for guaranteeing uninterrupted power supply of communication equipment, and the construction cost of the storage battery of the traditional base station is about 3 times of that of a switching power supply, so that the management of the storage battery is enhanced, the service condition of the storage battery is improved, the service life of the storage battery is effectively prolonged, and the mobile communication base station has important significance.
In the actual configuration of the storage battery, the situation that the capacity of the storage battery is configured too high often occurs in consideration of the requirement of load capacity expansion in the later period, so that the problem of backup time of the storage battery is solved, but the problems of too high input cost of the battery, insufficient use of the capacity of the battery and the like are also caused.
The insufficient use of battery capacity has two aspects, namely, the configured battery capacity is too high, and the investment pressure is increased; and secondly, when the battery capacity does not meet the backup requirement, the whole group of batteries can be eliminated, and the storage battery has capacity but cannot continuously provide service. The storage battery manufacturers and the models are multiple, and the trouble is added to the subsequent battery updating, which is embodied in that: the variety is various, the capacity difference is large, and the utilization rate of the old battery is low; if the original battery pack is expanded, the battery packs are used in parallel in the same brand, model and capacity and in the same batch; in order to avoid the need of changing batteries due to capacity expansion of the base station; the batteries must be replaced by two groups at the same time, and the construction and maintenance costs of the batteries are high.
The battery sharing manager is applied to the construction of the communication base station and can effectively solve the problem. In a communication power supply room, a battery multiplexing manager is arranged between a switch power supply and a battery pack and is used as a combining device for connecting a plurality of groups of batteries into the switch power supply, and meanwhile, no circulation current exists between each group of batteries. The battery sharing manager can control the charging and discharging current of each group of batteries and ensure that each group of batteries work in a balanced manner. The charging mode can be that multiunit battery charges jointly and charges in groups, and the discharge mode can be that multiunit battery discharges jointly, and the manager is shared to the battery to each group promptly and supplies power to the load simultaneously, does not allow the circulation to exist between the group battery, is applied to newly-built or the transformation of each base station.
The control method of the storage battery sharing manager in the current market is mainly characterized in that the capacity expansion of the base station power supply battery pack is realized by switching on and off a light-on tube or a diode, the discharging current sharing is poor, the current sharing discharging of the battery pack cannot be realized, and the problem of circulation among the battery packs is serious. Therefore, the invention provides a storage battery sharing manager control method to solve the defects in the prior art.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the technical defects and provide a storage battery sharing manager control method, wherein the DSP in the control system is used for detecting the charging and discharging current, the battery voltage, the system output voltage and the system charging and discharging current of each group of batteries, and the working mode is divided into four modes, namely a standing mode, a charging mode, a discharging mode and a protection mode, so that the system can be ensured to stably operate, and the circulation problem of the batteries of the system can be avoided.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a storage battery sharing manager control method comprises the following steps:
the method comprises the following steps: all batteries in the system are connected into the system, a battery sharing manager DSP acquires the battery voltage V _ bat of each group of batteries, the discharging current I _ bat of each group of batteries, the charging current I _ charge of each group of batteries, the system discharging current I _ out and the system charging current I _ in real time, and each path of battery channel outputs voltage U _ out;
step two: in the discharging mode, a battery sharing manager DSP is used for carrying out proportional operation on the system discharging current I _ out to calculate I _ share, and the I _ share is differed with the discharging current of each group of batteries to obtain an error current Iavg _ deta;
step three: multiplying each group of error currents Iavg _ deta by a proportionality coefficient, and then superposing the error currents Iavg _ deta to each group of output voltage rings;
step four: when the system is in no-load, the discharging current and the charging current of the system are both 0, if each group of batteries has the charging current, the system recognizes the mutual charging of the batteries, the system is immediately converted into a standing mode, and only one group of discharging MOS (metal oxide semiconductor) tubes is kept open;
and step five, the battery sharing manager adopts four output modes for control, namely a standing mode, a charging mode, a discharging mode and a protection mode, and intelligently switches the four working modes, so that the system is ensured to operate stably, and no circulation exists between batteries.
Preferably, the specific process in the third step is as follows: in the discharging mode, a battery sharing manager DSP is used for carrying out proportional operation on system discharging current I _ out to calculate I _ share, the I _ share is differed with each group of battery discharging current to obtain error current Iavg _ deta, each group of output voltage U _ out is differed with an output voltage set value U _ ref to obtain U _ data, PI operation is carried out to obtain a result I _ ref, the difference is carried out with the error current Iavg _ deta, PID operation is carried out again finally, and the operation result is assigned to PWM.
Preferably, the DSP in step four detects the system discharging current and charging current time as 10ms.
Preferably, the specific process in the step five is as follows: and judging that the system discharge current is greater than the system charging current, the system enters a discharge mode, the system discharge current is less than the system charging current, the system enters a charging mode, the system discharge current is greater than the system set maximum discharge current, or the system charging current is greater than the system set maximum charging current, the system enters a protection mode, and the corresponding four groups of battery drives are completely closed.
Compared with the prior art, the invention has the advantages that: the DSP of the storage battery sharing manager is used for collecting relevant data such as voltage and current of each group of batteries, system voltage and system current, a double-loop control strategy is adopted for direct current output, the batteries of each group can be discharged in a current equalizing mode under the condition that the system is discharged, meanwhile, the working mode of the system is divided into four modes, namely a standing mode, a charging mode, a discharging mode and a protecting mode, stable operation of the system is guaranteed, and the circulation problem of the batteries of the system can be avoided.
Drawings
Fig. 1 shows a connection mode between a battery sharing manager and other devices according to a control method of the battery sharing manager of the present invention.
FIG. 2 is a schematic diagram of a dual-loop control strategy of the control method of the storage battery sharing manager.
Fig. 3 is a flow chart of switching between four operation modes of the storage battery sharing device according to the control method of the storage battery sharing manager.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a storage battery sharing manager control method, which comprises the following steps:
the method comprises the following steps: all batteries in the system are connected into the system, a battery sharing manager DSP acquires the battery voltage V _ bat of each group of batteries, the discharging current I _ bat of each group of batteries, the charging current I _ charge of each group of batteries, the system discharging current I _ out and the system charging current I _ in real time, and each path of battery channel outputs voltage U _ out;
step two: in the discharging mode, a battery sharing manager DSP is used for carrying out proportional operation on the system discharging current I _ out to calculate I _ share, and the I _ share is differed with the discharging current of each group of batteries to obtain an error current Iavg _ deta;
step three: multiplying each group of error current Iavg _ deta by a proportionality coefficient, and then superposing the error current Iavg _ deta to each group of output voltage rings, so that the discharging current-sharing and discharging of the battery can be ensured;
step four: when the system is in no-load, because all groups of discharging MOS tubes are conducted in a discharging mode, if no measure is taken, the battery in the system is charged to be low due to the fact that the battery is high, and therefore battery circulation is caused;
and step five, the battery sharing manager is controlled by adopting four output modes, namely a standing mode, a charging mode, a discharging mode and a protection mode, and intelligently switches the four working modes, so that the system is ensured to operate stably, and no circulation exists among batteries.
The specific process in the third step is as follows: in the discharging mode, a battery sharing manager DSP is used for carrying out proportional operation on system discharging current I _ out to calculate I _ share, the I _ share is differed with each group of battery discharging current to obtain error current Iavg _ deta, each group of output voltage U _ out is differed with an output voltage set value U _ ref to obtain U _ data, PI operation is carried out to obtain a result I _ ref, the difference is carried out with the error current Iavg _ deta, PID operation is carried out again finally, and the operation result is assigned to PWM.
And in the fourth step, the DSP detects the time that the system discharge current and charging current time are 10ms.
The concrete process in the step five is as follows: and judging that the system discharge current is greater than the system charging current, the system enters a discharge mode, the system discharge current is less than the system charging current, the system enters a charging mode, the system discharge current is greater than the system set maximum discharge current, or the system charging current is greater than the system set maximum charging current, the system enters a protection mode, and the corresponding four groups of battery drives are completely closed.
All batteries are accessed into the system, and then relevant data are collected in real time by using a DSP of a storage battery sharing manager; the direct current output adopts a double-loop control strategy; dividing the system discharge current to calculate the average discharge current of each group of batteries of the system, carrying out average operation on the discharge current of each group of batteries, and then carrying out difference calculation on the average discharge current of each group of batteries and the discharge current of each group of batteries to calculate a current difference value; multiplying the current difference average value by a proportionality coefficient, and then superposing the current difference average value on a voltage ring; the DSP of the storage battery sharing manager is used for collecting relevant data such as voltage and current of each group of batteries, system voltage and system current, a double-loop control strategy is adopted for direct current output, the batteries of each group can be discharged in a current equalizing mode under the condition that the system is discharged, meanwhile, the working mode of the system is divided into four modes, namely a standing mode, a charging mode, a discharging mode and a protecting mode, stable operation of the system is guaranteed, and the circulation problem of the batteries of the system can be avoided.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (2)
1. A storage battery sharing manager control method is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: all batteries in the system are connected into the system, a battery sharing manager DSP acquires the battery voltage V _ bat of each group of batteries, the discharging current I _ bat of each group of batteries, the charging current I _ charge of each group of batteries, the system discharging current I _ out and the system charging current I _ in real time, and each path of battery channel outputs voltage U _ out;
step two: in the discharging mode, a battery sharing manager DSP is used for carrying out proportional operation on system discharging current I _ out to calculate I _ share, the I _ share is differed with each group of battery discharging current to obtain error current Iavg _ deta, each group of output voltage U _ out is differed with an output voltage set value U _ ref to obtain U _ data, PI operation is carried out to obtain a result I _ ref, the difference is carried out with the error current Iavg _ deta, PID operation is carried out again finally, and the operation result is assigned to PWM;
step three: multiplying each group of error currents Iavg _ deta by a proportionality coefficient, and then superposing the error currents Iavg _ deta to each group of output voltage rings;
step four: when the system is in no-load, the discharging current and the charging current of the system are both 0, if each group of batteries has the charging current, the system recognizes the mutual charging of the batteries, the system is immediately converted into a standing mode, and only one group of discharging MOS (metal oxide semiconductor) tubes is kept open;
the battery sharing manager is controlled by adopting four output modes, namely a standing mode, a charging mode, a discharging mode and a protection mode, and intelligently switches the four working modes to ensure that the system stably operates and no circulation exists among batteries, and the specific process is as follows: and judging that the system discharge current is greater than the system charging current, the system enters a discharge mode, the system discharge current is less than the system charging current, the system enters a charging mode, the system discharge current is greater than the system set maximum discharge current, or the system charging current is greater than the system set maximum charging current, the system enters a protection mode, and the corresponding four groups of battery drives are completely closed.
2. The storage battery sharing manager control method according to claim 1, characterized in that: and in the fourth step, the DSP detects the time, and the system discharge current and charging current time is 10ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011439672.4A CN112531649B (en) | 2020-12-07 | 2020-12-07 | Control method for storage battery sharing manager |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011439672.4A CN112531649B (en) | 2020-12-07 | 2020-12-07 | Control method for storage battery sharing manager |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112531649A CN112531649A (en) | 2021-03-19 |
| CN112531649B true CN112531649B (en) | 2023-02-07 |
Family
ID=74999469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011439672.4A Active CN112531649B (en) | 2020-12-07 | 2020-12-07 | Control method for storage battery sharing manager |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112531649B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117674370B (en) * | 2024-02-01 | 2024-05-07 | 杭州宇谷科技股份有限公司 | Discharging control method and system of battery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489252A (en) * | 2002-10-09 | 2004-04-14 | 圣能捷科技股份有限公司 | Intelligent lithium ion battery protection circtuit |
| CN101515724A (en) * | 2008-02-20 | 2009-08-26 | 中兴通讯股份有限公司 | Charge/discharge method for storage battery and system |
| CN106169795B (en) * | 2016-09-13 | 2018-08-17 | 沃太能源南通有限公司 | A kind of energy-storage lithium battery group and its expansion method |
| CN109301812B (en) * | 2018-11-29 | 2022-03-18 | 上海电气分布式能源科技有限公司 | Multi-module parallel DCDC control method based on retired battery |
| CN110932383B (en) * | 2019-12-04 | 2021-01-15 | 厦门市爱维达电子有限公司 | UPS parallel current-sharing control method sharing DC bus |
-
2020
- 2020-12-07 CN CN202011439672.4A patent/CN112531649B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112531649A (en) | 2021-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204179729U (en) | A kind of communication discrete lithium battery back-up source | |
| CN102104257B (en) | Energy storage system of apartment building, integrated power management system, and method of controlling the system | |
| CN108599215B (en) | Power distribution network voltage regulation and control method based on internet cloud platform and distributed energy storage | |
| CN102842936B (en) | Distributed battery power supply device and method | |
| CN111884197B (en) | Intelligent direct current power distribution system | |
| CN111049168A (en) | Energy management and control method and system for battery energy storage system | |
| CN109193723B (en) | Combined base station backup energy storage power supply and control method | |
| CN112531649B (en) | Control method for storage battery sharing manager | |
| CN207834505U (en) | A kind of battery pack intelligence managing and control system | |
| CN207234517U (en) | A kind of storage battery parallel power supply system based on straight-flow system | |
| WO2024066911A1 (en) | Smart battery management system and method, and electronic device and readable storage medium | |
| CN206452121U (en) | Intelligent peak load shifting is superimposed the power-supply system of photovoltaic generation | |
| CN117498414A (en) | System for realizing electricity saving and cost reduction of communication base station by combining photovoltaic and energy storage | |
| CN202906507U (en) | Distributed cell power supply device and method thereof | |
| CN112103979A (en) | Coordination control method of integrated energy storage system | |
| CN106671816B (en) | A kind of electric car based on voltage stability index is wireless charge-discharge system and method | |
| CN113078668B (en) | Method, system, equipment and storage medium for realizing demand side response virtual power station | |
| CN100358213C (en) | Real time on line uninterrupted direct current power source | |
| CN116072998B (en) | Communication method, device, system, equipment, medium and product of energy storage system | |
| CN112311083A (en) | Multi-redundancy distributed mobile power supply system | |
| CN219372297U (en) | Battery echelon utilization equipment of battery exchange cabinet | |
| CN205039557U (en) | Energy storage is monitored control system on spot | |
| CN112421744B (en) | Control circuit and method for parallel connection of multiple groups of battery packs | |
| Tian et al. | Microgrid Solution of Smart Energy Station Based on HVDAC System | |
| CN220874240U (en) | Intelligent management system for electrochemical energy storage application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |