CN102386446A - Energy box system - Google Patents
Energy box system Download PDFInfo
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- CN102386446A CN102386446A CN2010102711480A CN201010271148A CN102386446A CN 102386446 A CN102386446 A CN 102386446A CN 2010102711480 A CN2010102711480 A CN 2010102711480A CN 201010271148 A CN201010271148 A CN 201010271148A CN 102386446 A CN102386446 A CN 102386446A
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- battery
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- energy box
- module
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- 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
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Abstract
The invention relates to an energy box system which comprises a battery management unit, a power module unit and an input/ output unit; and the energy box system is capable of realizing the management for a power supply by the processes such as data acquisition, electric quantity calculation, power calculation, health condition monitoring, balance control and the like which are carried out on a module battery unit, and distributing energy and power of a power module, so that the energy of a battery can be utilized to the utmost extent. After the energy box system is adopted, the energy storage efficiency of all module batteries can be fully utilized and developed on the premise of ensuring a battery module to be safely and reliably used, so that the service life of the battery module is prolonged. Meanwhile, the design of a power supply system is simplified, and the whole efficiency of a power supply application system is improved.
Description
Technical field
The present invention relates to the power-supply system application, relate in particular to a kind of energy box system based on power management.
Background technology
In the application of current power-supply system, the application that can discharge and recharge battery usually need be with the use that is together in series of a plurality of single batteries.Because the restriction of production technology, there is intrinsic difference in each single battery at aspects such as charging state, internal resistance, capacity.Owing to the single battery self-discharge rate is different, different, the not equal many-sided reason of circuit board power consumption of working temperature, in the battery use, it is increasing that this species diversity can become.
The difference of each single battery at aspects such as charging state, internal resistance, capacity can have a strong impact on the performance and the useful life of the battery pack of series connection application.There are differences with the charging state of single battery and to be example, in charging process, the higher battery of charging state can reach fully charged state earlier, and this moment, the battery that charging state is lower also is not full of.In discharge process, the battery that charging state is lower can reach the state of completely putting earlier, and the electric weight in the higher battery of charging state has not also been put.Therefore, the capacity of each single battery can not be fully used, and the capacity of whole series battery also just receives the restriction of the minimum battery of performance, be that the entire cell systematic function is had a greatly reduced quality.
Cell balancing can address this problem, but the cell balancing complex structure, and have energy loss; If the algorithm imperfection is easy to produce erroneous judgement, and in discharge; Equilibrium also can off-energy, reduces the loss of the energy of entire cell system.The corresponding management of design matching system can make it work safely and reliably in the battery system; Information such as the temperature of management system monitors battery, voltage and electric current; And the dump energy of estimating battery, health status and allowed discharge and recharge power etc., thereby energy and the power of the working condition of control load to confirm that battery system provides.Traditional battery management system adopts the way to manage of lump type; CPU is collected the information of all electric cores or battery module, draws entire cell systematic function estimated value, and overall performance receives the restriction of the poorest electric core or module; The result is or causes the loss of significant amount of energy and power; Cause the inconsistency of battery to strengthen, make individual cell or battery module work overloadingly, thus the life-span of reducing battery system greatly.The balanced mode of battery management system employing need keep the consistency of battery as far as possible, but its performance receives the restriction of specific algorithm, particularly large-scale energy storage and ups system; Because battery location and environmental difference are big; The feasible balanced condition that will consider is complicacy, particularly high capacity cell or battery module more, to the intensity of equilibrium; Balanced heat radiation proposes higher requirement, and cost is also higher.
Summary of the invention
The object of the invention provides a kind of energy box system, based on the pattern of power management, under the prerequisite that guarantees battery and modular battery working healthily, utilizes battery capacity to greatest extent, prolongs the service time that the power supply energy-storage system once charges, simultaneously extending battery life.The output services point of energy box system can carry out flexible configuration, reduces the design complexities and the installation cost of system.
A kind of energy box system is made up of battery management unit, power model unit and input-output unit.
Battery management unit is used for data acquisition, electric weight calculating, power calculation, health status monitoring and battery balanced or discharge control to the battery module unit.
The power model unit carries out the energy and the power division of power module, utilizes the energy content of battery to greatest extent.
Input-output unit is used for the signal controlling and the transmission of input and output.
The modular battery unit that energy box system is corresponding constitutes basic energy-storage units by one or more single batteries or a plurality of battery, can adopt the application mode of a plurality of cell serial or parallel connections to constitute battery pack.Battery management module is gathered in real time, parameters such as the capacity data of calculating and renewal battery module, power-performance, temperature, internal resistance.Can adopt the communication form of isolating communication or non-isolation connection according to system applies between battery management unit and the battery module.
Adopt energy box provided by the invention system, can guarantee under the prerequisite of the safe and reliable use of battery module, to make full use of and bring into play the energy storage efficiency of each modular battery, prolonged the useful life of battery module.Simultaneously can simplify power system design, improve the whole efficiency of application of power system.
Description of drawings
Fig. 1 energy box system construction drawing
Sketch map is used in the series connection of a kind of energy box of Fig. 2 system
The connection sketch map of a kind of energy box of Fig. 3 system applies
Embodiment
Each accompanying drawing below in conjunction with energy box system carries out detailed description to content provided by the present invention:
Fig. 1 is the cellular construction figure of energy box system.Energy box system constitutes basic applying unit by battery management unit, power model unit and input-output unit.The modular battery unit that the energy box is corresponding can constitute basic energy-storage units by one or more single batteries or battery combination, and the application connected mode that can adopt serial or parallel connection between the modular battery is to constitute bigger energy-storage units.
Each parameter of capacity condition, power-performance, temperature and internal resistance thereof of the battery management unit real-time update battery module of energy box system is guaranteed the battery module operate as normal.The power model unit is when guaranteeing that the power module application is satisfied in each input and output, and output suitable voltage and electric current satisfy the demand of system to voltage and current.
Energy box system and outside host computer are provided with communication interface, according to system applies, can adopt the application form of isolation communication or non-isolation communication according to the actual connecting mode of distribution of each energy box internal insulation mode of system or system's ground wire and high pressure.Also be provided with communication interface between battery management unit and the battery module,, can adopt the form of isolating communication or non-isolation communication according to the application of system.
The positive pole of power model unit input and the positive pole (BAT+) of negative pole and battery module and negative pole connect; And output voltage and power anode (+) and negative terminal (-); The power model unit is a direct current transducer, can be step-down BUCK, and the Boost circuit perhaps boosts; Perhaps buck (buck-boost) circuit, can connect so that the output of bigger voltage or power to be provided in the power model unit.
Fig. 2 is a kind of series connection application system of energy box.The energy box adopts the series connection form to connect among the figure, and by central control unit, promptly main control computer is controlled the communication between each energy box.Main control computer obtains the needed realtime power P of load running
AlwaysMain control computer obtains the real-time parameter of battery module through the communication of energy box and battery module, arrives each energy box P of system to power division according to the state of power demand and battery module
e, each energy box satisfies:
1, Pe
1+ Pe
2+ Pe
3+ ... Pe
n=P
AlwaysEach Pe need guarantee to surpass the maximum power of each modular battery operate as normal, does not damage performances such as battery life.
2, to guarantee that each modular battery is at present stage operating mode following running time of basically identical, Te during power division
n=Ee
n/ Pe
nThereby reach maximum the running time that makes battery system, Ee
1=Ee
2=Ee
3=...=Ee
n, Ee
n, be the dump energy of n energy box under certain operating mode.
3, according to the input voltage V of loads ideal
I, the electric current I=P of computing system
Always/ V
L, calculate the output voltage values Ve of each energy box at last
NL=Pe
n/ I.
In the application of energy box system; Can adopt modular battery and battery management unit to combine and constitute complete battery module; Power model becomes independently unit, and power model is directly connected and constituted the connected mode of power range system and load, and is as shown in Figure 3.The embodiment of above-mentioned energy box can adopt different connected modes according to application form, and the collection of data is correspondingly adopted different isolation strategies with the communication meeting.
Claims (5)
1. an energy box system is characterized in that: be made up of battery management unit, power model unit and input-output unit.
2. a kind of energy box as claimed in claim 1 system is characterized in that: the battery pack that the corresponding modular battery of said energy box system is made up of one or more single batteries.
3. a kind of energy box as claimed in claim 2 system, it is characterized in that: the corresponding modular battery group of said energy box system adopts the mode of modular battery serial or parallel connection.
4. a kind of energy box as claimed in claim 1 system is characterized in that: according to different application, adopt and isolate communication type of attachment or non-isolation communication type of attachment between said battery management unit and the modular battery.
5. a kind of energy box as claimed in claim 1 system; It is characterized in that: said battery management unit can separate separately with the power model unit; Battery management unit constitutes battery module with modular battery, and power model unit and input-output unit connect and compose independently power range system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102711480A CN102386446A (en) | 2010-09-01 | 2010-09-01 | Energy box system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102711480A CN102386446A (en) | 2010-09-01 | 2010-09-01 | Energy box system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102386446A true CN102386446A (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102711480A Pending CN102386446A (en) | 2010-09-01 | 2010-09-01 | Energy box system |
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| CN (1) | CN102386446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515117A (en) * | 2016-01-21 | 2016-04-20 | 苏州纳新新能源科技有限公司 | Intelligent management system for battery charge and discharge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008099953A1 (en) * | 2007-02-13 | 2008-08-21 | Toyota Jidosha Kabushiki Kaisha | Drive force generation system, vehicle using the system, and method for controlling the system |
| CN201174609Y (en) * | 2007-11-15 | 2008-12-31 | 珠海朗尔电气有限公司 | Accumulator on-line equilibrium instrument |
-
2010
- 2010-09-01 CN CN2010102711480A patent/CN102386446A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008099953A1 (en) * | 2007-02-13 | 2008-08-21 | Toyota Jidosha Kabushiki Kaisha | Drive force generation system, vehicle using the system, and method for controlling the system |
| CN201174609Y (en) * | 2007-11-15 | 2008-12-31 | 珠海朗尔电气有限公司 | Accumulator on-line equilibrium instrument |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515117A (en) * | 2016-01-21 | 2016-04-20 | 苏州纳新新能源科技有限公司 | Intelligent management system for battery charge and discharge |
| CN105515117B (en) * | 2016-01-21 | 2018-01-16 | 苏州纳新新能源科技有限公司 | A kind of battery charging and discharging intelligent management system |
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Application publication date: 20120321 |