CN204696705U - A kind of electricity transfer bus system - Google Patents
A kind of electricity transfer bus system Download PDFInfo
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- CN204696705U CN204696705U CN201520115163.4U CN201520115163U CN204696705U CN 204696705 U CN204696705 U CN 204696705U CN 201520115163 U CN201520115163 U CN 201520115163U CN 204696705 U CN204696705 U CN 204696705U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of electricity transfer bus system, by 1 to or multipair electricity transfer bus, battery, generating equipment and electrical load are coupled together, between battery, generating equipment and electrical load, realize controlled electricity transfer, the beneficial effects of the utility model are: charging and discharge process whole process controlled, the dump energy of each battery can be redistributed on demand, do not overcharge during charging, only put the part or all of battery discharge degree of depth that can control battery pack completely during electric discharge to be consistent, extend the cycle life of battery pack.
Description
Technical field
The utility model relates to cell art, especially relates to the application of intelligent battery and battery pack.
Background technology
Battery inconsistency is that in present battery application, especially electrokinetic cell organizes into groups the difficult problem that cannot thoroughly solve all the time in application.
The application of battery is generally that marshalling uses, at least 3,4 pieces of battery marshallings, hundreds of block battery marshalling at most.The many factors such as the density/quality due to the uneven and storage power material of manufacturing process problem, material is incomplete same are absolute beings between each battery of inconsistency in the production link of battery, in the use link of battery, because the position of block battery in battery pack every after battery marshalling is different, the ambient temperature that the inhomogeneities of thermal field during battery set charge/discharge causes every block battery residing when discharge and recharge is different, inconsistency can expand even out of control gradually in the use link of battery, cause the discharge and recharge degree of depth of Individual cells relatively large, namely there is not controlled overcharge and charge less electricity during charging, and the phenomenon of the overdischarge of percentage of batteries during aggravation electric discharge, in battery pack, the inconsistent overall cycle life by the overall discharge capacity decline and battery pack that cause battery pack of the depth of discharge of each battery is accelerated to decline along with the cycle life decline of depth of discharge the best part battery.
After battery marshalling, general needs is equipped with expensive battery management system, but also can only play the function that namely diagnosis detects data, cannot implement to control and repair to the Individual cells in battery pack, and have a large amount of wirings and shielding processing after outfit battery management system, add cost, reduce system reliability.
Occurred to the charging device of the battery charge independence in battery pack in recent years, although also non-large scale application, the conventional serial charging technique generally applied comparatively has had quality difference.Find that charge independence technology still has weak point after tested: uncontrollable electric discharge link, cannot ensure that in battery pack, all batteries keep identical depth of discharge, charger distance battery pack has certain distance, causes the increase corresponding to quantity of the wire diameter specification of charging wire; The laying of large current charge line and data acquisition line concentration too increases additional space, cost and unsafe factor at (comprising shielding); And the data acquisition line concentration of long distance reduces the precision of data acquisition.
Existing charging method is all for target with " being full of ", due to the inconsistency between battery under this target, traditional serial connection charge mode all can cause the percentage of batteries in battery pack to be in the state of overcharge and overdischarge when charge or discharge, when use can carry out charge independence to every block battery charger to batteries charging time, the phenomenon of overcharge can not be there is in battery pack, but still the relative discharge degree of depth of the percentage of batteries in discharge process cannot be avoided namely to occur comparatively greatly the phenomenon of relative overdischarge, in battery pack, the inconsistent overall cycle life by the overall discharge capacity decline and battery pack that cause battery pack of the depth of discharge of each battery is accelerated to decline along with the cycle life decline of depth of discharge the best part battery.
Summary of the invention
Intelligent battery disclosed in the utility model, electricity transfer bus and balance charge/discharge method overcome prior art deficiency, intelligent battery is made by the mode installing control unit in conventional batteries inside additional, in collection and the controlled charging of every data of inside battery and complete cost batteries, both-way communication swap data can be carried out with higher level's control system of all intelligent batteries of same marshalling and battery pack by the communication module of control unit, and the electricity transfer that can realize after marshalling between battery, the charging method of dynamic adjustment charge parameter is adopted during charging, the charging method that can realize electricity transfer between battery is adopted during electric discharge, do not overcharge when reaching charging, the balance charge/discharge only put during electric discharge, and can when there being generating equipment to access electricity transfer bus, carry out supplementing electricity to part or all of battery, increase the discharge capacity of battery pack.
A kind of technical scheme of intelligent battery disclosed in the utility model, comprises control unit, battery body part, connecting line and transducer, shell, can with reference to figure 1, the structural schematic block diagram of intelligent battery.
Further, the major function of control unit is cooperation control, obtaining information, statistical analysis, ACTIVE CONTROL and to external feedback, i.e. all batteries and connected generating equipment/electrical load collaborative work in the same marshalling of cooperation control; Obtain the various information of all cell/device in marshalling; Statistical analysis and computing are carried out to the above-mentioned information obtained; And then the control such as charge parameter adjustment and electricity reallocation is carried out to each battery and equipment room in marshalling; Passive feedback and outwardly Active report information are carried out in simultaneously order to external world.
Further, control unit comprises main control module, memory module, acquisition module, electricity shift module, charging module, communication module and interactive module.
Further, the function of main control module coordinates each module cooperative work of this battery, and all modules and the connected generating equipment/electrical load work of other intelligent batteries of same marshalling is coordinated by communication interface, and communication can be carried out with battery pack higher level control system, the data of report battery group, receive the order of battery pack higher level control system and perform, the major function of main control module is described below:
1. main control module comprises processor and program, the major function realized is, can according to discharge and recharge data of block battery every in the discharge and recharge data of this battery read and the battery pack received and the order of battery pack higher level control system, add up and calculate the charge and discharge cycles number of times of every block battery in battery pack, the discharge and recharge degree of depth, degradation and relatively degradation, calculate the charge parameter of other batteries in this battery applicable and battery pack and issue the charhing unit of this battery or send to other batteries by communication interface, according to the real time data of block battery every in the battery pack received, the order of higher level's control system and from block battery every in the order dynamic conditioning battery pack of interactive module charge parameter and send to the charging module of other batteries in battery pack, or the main control module receiving other intelligent batteries in the same marshalling order of sending and charge parameter, drive the charging module work of this battery, according to the dump energy data of battery each in battery pack, start electricity shift module in good time, between each battery of battery pack, realize electricity transfer, report according to the cycle-index of the every block battery in battery pack, the discharge and recharge degree of depth, the relative degradation of data analysis every block battery such as degradation and dump energy the higher level's control system to battery pack, control data acquisition kind and the frequency acquisition of acquisition module, read the data in the memory module of this battery and other batteries, the side-play amount of each acquisition module of same marshalling is revised during calibration, program is scalable, upgrading mode comprises is upgraded by the program upgrade interface (as storage cards such as USB or TF cards) of this battery, by the higher level control system realization upgrading of communication module by battery pack, after one piece of battery upgrading, the main control module auto-update of other intelligent batteries of same marshalling can be given, or accept the control realization program upgrade of main control module of other batteries of battery pack,
2. main control module is with buffer circuit, is used for isolating acquisition module and charging module;
3. main control module is with real-time clock, this clock can with real time calibration in the communication of other intelligent batteries and battery pack higher level control system, keep the clock of battery pack and battery pack higher level control system consistent;
4. main control module is with gyroscope chip, can the motion state such as the current acceleration of perception battery, or by obtaining the motion state such as speed and acceleration of battery pack with the communication of battery pack higher level control system;
5. main control module is with temperature collection function, gathers the temperature sensor that is arranged on outside in this module or battery to gather ambient temperature, or by obtaining ambient temperature data with the communication of battery pack higher level control system;
6. main control module is with self-checking function, and self-detection result can be reported to battery pack control system;
7. main control module is with warm up/down interface, outwardly as battery pack control system or additional warm up/down equipment send warm up/down signal, the all or part of battery of warm up/down equipment to battery pack that can control intelligent battery outside carries out warm up/down, all battery operated in suitable temperature to make;
8. when intelligent battery marshalling uses, automatically the main control module of main control module as whole battery pack of certain block intelligent battery can be distributed, coordinate all module work of whole battery pack, whole battery pack can only have one piece of intelligent battery to be equipped with main control module, to save cost.
Further, the function of memory module stores following message: this battery brand/model/date of manufacture/sequence number/quality inspection numbering is in interior part or all of information, the discharge and recharge data comprising voltage/current/internal resistance/temperature during the discharge and recharge of the acquisition module collection of this battery, by the information that communication interface receives, the information that main control module stores, above-mentioned information all with timestamp, in order to transferring.
Further, the function of acquisition module performs main control module or the order from communication module, according to frequency acquisition and the collection kind of regulation, gather every data such as the voltage/current/internal resistance/temperature of this battery and add that timestamp is kept in memory module, in order to reading.Acquisition module has calibration function, by calibration interface, is used for calibrating the data acquisition accuracy of acquisition module, revises and gather side-play amount, to ensure the consistency of the standard of the image data of each battery of same marshalling.
Further, the function of electricity shift module is under the control of the order received under master control module controls or by communication module, with the electric energy supplying power for outside of this battery, charge as given other batteries, or other electrical loads are powered, the power of supplying power for outside and time are all controlled, charge to other batteries with the electric energy of this battery, have controlled diverter switch and isolated component in electricity shift module as the electric energy conversion/conveying element of isolating transformer or other inputs and output non-direct contact type.
Further, introduce the collaborative work of main control module, charging module and electricity shift module in detail, main control module can be as required, the electric energy transfer of certain block battery in battery pack to other batteries, namely other one piece of battery charging is given with one piece of battery in battery pack, that is, in same battery pack, no matter battery pack is in the state of serial connection charge/standby/electric discharge, electricity transfer can be realized having between two pieces of batteries of electromotive force relation, or power plant for emergency is charged to all or part of battery, or certain block battery is used externally to power separately.Realize the technical scheme part of detailed process see the electricity transfer bus of this specification of electricity transfer.
Introduce the mode of operation of intelligent battery electricity transfer by reference to the accompanying drawings: 1 in Fig. 2 ~ Fig. 4 is intelligent battery, 2 is that the electricity transfer of charging module is by electric switch, 3 is power supply input during the charging normal of charging module, 4 is one group of electricity transfer bus, 5 is that other modules of intelligent battery are as the signal of collection/communication/storage/interactive module, 6 is electricity shift module, 7 is isolating transformer (other contactless electric energy conversion/conveying elements available substitute), 8 be electricity shift module electricity transfer power switch, 9 is the flow of electrical power direction in electricity transfer bus;
When battery does not participate in electricity transfer, see Fig. 2, wherein the electricity transfer power switch 8 of electricity shift module 6 disconnects and being namely failure to actuate, and namely the electricity transfer of charging module also disconnects by electric switch 2 is failure to actuate;
When namely battery powers to other batteries or electrical load shifting savings of accessing same electricity transfer bus, see Fig. 3, the electricity transfer power switch 8 of electricity shift module closes, and now electric energy is for flowing out this battery, the electric energy transfer direction 9 in electricity transfer bus 4 as shown in Figure 3;
When battery accepts access other batteries of same electricity transfer bus or generating equipment to this battery shifting savings, when namely this battery being charged, see Fig. 4, the electricity transfer of charging module closes by electric switch 2, the power supply of charging module input is switched to electricity transfer bus, now electric energy is for flowing into this battery, the electric energy transfer direction 9 in electricity transfer bus 4 as shown in Figure 4.
Further, the function of charging module performs charge command that is that main control module directly sends or that received by communication module and charges to this battery according to the charge parameter provided, and can adjust charge parameter in real time according to the up-to-date charge parameter received, charging module can under the control of main control module, coordinate with other battery or generating/power supply unit of accessing electricity transfer bus, accept its electric energy to the charging of this battery, as Fig. 4, the energization input of charging module has controlled electricity transfer the power supply of charging module input can be switched to electricity transfer bus by input of powering normally by electric switch 2, and the electric energy accepted from electricity transfer bus charges to this battery, electrical isolation between the constrained input of charging module, can adopt same generating equipment to charge to the part or all of battery of the battery pack with electromotive force relation simultaneously, charging module selects corresponding heat abstractor as natural cooling/fan cooled/liquid cools etc. according to the difference of power, charging circuit is provided with overload protection arrangement, charging module is connected with power supply by the power supply interface be arranged on shell, can according to the full-time charging of the Capacity Selection of battery or time-sharing charging when manufacturing intelligence battery, in order to reduce the weight of charging module, volume and cost: during full-time charging, the power of charging module meets the maximum charge power demand of this battery, and the omnidistance charging module that adopts charges to this battery, in jumbo intelligent battery, if mate flat-out charging module, the power of charging module and cooling requirements cause the weight of charging module, volume and cost etc. will rise to some extent, therefore time-sharing charging pattern can be adopted, namely the power of charging module is reduced, as being reduced to flat-out 1/3, thus reduce the weight of charging module, volume and cost, charging initially still adopts traditional serial connection charge mode to carry out total power charging to battery pack, and the state of every block battery is monitored, along with the increase of electricity in battery, charge power drops in the power bracket of charging module gradually, or during the critical value of the charge parameter of certain block battery close to the charge parameter of this battery, during the charging voltage that this battery that the charging voltage as certain block battery has calculated close to main control module should adopt, stop extraneous high-power serial connection charge, the charging module using this battery instead charges, this time-sharing charging pattern can not unit out of hand to the control of the crucial charge parameter (as changing voltage electric current/float charge voltage electric current etc.) of battery, make charging effect completely controlled, weight can be reduced again, volume and cost.
Further, the function of communication module be between the intelligent battery of same marshalling, transmit data, transmit between battery pack and battery pack higher level control system data and incoming communication bus other generating equipment or transmit data between electrical load and intelligent battery; Electromotive force relation is there is between the battery due to same marshalling, palpus electrical isolation between communication module and other modules, communication module can support the wired or wireless both-way communication mode of standard, and select different standards as WIFI/ bluetooth/RS485/CAN etc. according to application scenario difference, communication module is connected by being arranged on other intelligent batteries of the communication interface on shell and same marshalling, battery pack higher level control system, generating equipment or electrical load.
Further, the function of interactive module is the state/parameter etc. showing/arrange intelligent battery, and has corresponding input key, can adopt the mode of display screen+button, also can adopt the touch-screen with input function.Interactive module can select suitable configuration mode according to the applied environment of battery, power consumption and cost, until cancel.
Further, the modules such as above-mentioned master control/storage/collection/charging/electricity transfer/communication/mutual can be the multiple circuit boards be separated, also can be integrated on one piece of circuit board, each module can be done according to actual needs suitably to subtract to be equipped with and reduce costs, the intelligent battery of minimalist configuration only comprises a charging module, and now the charge parameter of intelligent battery is the preset charge parameter matched with battery body.
Further, the power supply of control unit, can support to be powered (extra rechargeable battery) by battery body energize portions, accessory power supply or extraneous power supply, the battery that accessory power supply comprises can charge in intelligent battery charging simultaneously, during extraneous power supply, can with charging module common power supply mouth power supply.
Further; the battery body part of intelligent battery can be the power brick of a battery, a battery core or several battery core composition; when the body part of battery is lithium battery; control unit can replace the protective circuit of lithium battery interior; to save cost, battery body part reserves the installation site of temperature sensor to improve the accuracy measured.
Further; the connecting line of intelligent battery inside and transducer; the positive wire of battery body part and negative wire are connected with the positive terminal of intelligent battery shell and negative terminal respectively; connection line is provided with overload protection arrangement if fuse and current sensor are as shunt; overload protection arrangement is at battery failure and emergency occurs as avoided battery short circuit initiation second accident during traffic accident, and the specification of overload protection arrangement and current sensor meets the requirement of the maximum charging and discharging currents of battery and has redundancy.The both positive and negative polarity output of charging module and the input of electricity shift module are connected with the positive and negative lead wires of battery body part respectively, connection line are provided with current sensor if shunt is for gathering charging current.
Further, the shell of intelligent battery, integral type or split type shell can be adopted, control unit, battery body part and connecting line are together with sensor combinations, shell there are the positive and negative terminal and some interfaces that expose, comprise environment temperature sensor interface/power supply interface/electricity transfer bus interface/heat radiation interface/calibration interface/interactive interface/communication interface/program upgrade interface at interior part or all of interface, above-mentioned each interface can be merged into an interface by independent or several interface separately, total interface, adopt suitable degree of protection as IP65 etc. between control unit and battery body part, when battery body part adopts lead-acid battery, shell leaves air vent hole or breather valve, the shell of whole shell or control unit part can do shielding processing.
Further, all wiring boards of control unit all do low power dissipation design and corresponding protective treatment according to the applied environment of battery.
Further, control unit becomes detachable with battery body partial design, is convenient to maintenance, changes and recycling.
Further, all connecting lines between each module of the control unit of intelligent battery inside, interface, battery body part, transducer and intelligent battery binding post all firmly connect, and the wire diameter specification of connecting line meets power requirement and has certain redundancy, part connecting line adopts shielding processing.
A kind of technical scheme of electricity transfer bus system disclosed in the utility model, comprise 1 to or multipair electric wire and electricity transfer bus, battery, generating equipment and electrical load are coupled together, between battery, generating equipment and electrical load, realize controlled electricity transfer, wherein:
The quantity of battery is more than 1 or 1;
The quantity of generating equipment is 0, more than 1 or 1;
The quantity of electrical load is 0, more than 1 or 1;
All batteries, generating equipment or electrical load in access electricity transfer bus all have the switch that can unify cooperation control or the switch through unifying cooperation control realizes being connected with electricity transfer bus on electrically or disconnecting.
Further, 1 couple of electricity transfer bus (hereinafter referred to as " bus ") or multipair electric wire, be connected to the intelligent battery of all access buses or the power supply interface (the electricity shift module of intelligent battery as the aforementioned) of equipment or be subject to electrical interface (charging module of intelligent battery as the aforementioned).
Further, the intelligent battery accessing bus at least should comprise to bus-powered function and utilize the electric energy of bus to carry out one of function of charging.
Further, generating or power supply unit should possess to bus-powered function.
Further, electrical load should possess the function utilizing the electric energy of bus to realize its specific objective.
Further, above-mentioned all intelligent batteries, generating equipment or electrical load itself all have the switch can unifying cooperation control and realize on electrically, accessing bus or disconnecting from bus; Or intelligent battery, generating equipment or electrical load itself do not possess above-mentioned switch, but have on the circuit of its access bus and can access bus on electrically to control it or disconnect from bus by the switch of unified cooperation control.
Further, whether each equipment of coordination access bus accesses bus or can be independent bus control system from the control system that bus disconnects, or the controlling functions possessed by one of intelligent battery/generating equipment/electrical load accessing bus carrys out cooperation control.
Further, a power supply unit and a power receiving equipment is only comprised in a minimum electricity transfer system.
Further, when the battery accessed in bus or number of devices more time, the method increasing electricity transfer bus group number can be adopted to improve the efficiency of electricity transfer, if be equipped with many group electricity transfer bus, then need to be equipped with corresponding multi-channel switch, to access different electricity transfer bus in the cell/device of access bus.
One of typical electricity transfer bus application: carry out controlled electricity transfer between two pieces of batteries of specifying in battery pack, as in battery power discharge process, control the charging module access electricity transfer bus of the electricity shift module of the maximum battery of dump energy and the minimum battery of dump energy, namely charge to the battery that dump energy is minimum with the battery that dump energy is maximum, when the dump energy of supplying cell be down to rise to the average residual charge level of battery pack close to the average residual charge level of battery pack or the dump energy level of powered battery time, the electricity shift module of supplying cell and the charging module of powered battery are broken from electricity transfer bus, again according to up-to-date data acquisition results, batteries maximum for dump energy is charged to the battery that dump energy is minimum, the dump energy of all batteries in battery pack is finally made to reach unanimity, namely when discharging cut-off, each battery of same marshalling is made to keep identical depth of discharge,
Two of typical electricity transfer bus application: power with the electrical load of the battery of specifying in battery pack to access electricity transfer bus, this electrical load need access in the communication system of intelligent battery group, can coordinate with main control unit, access electricity transfer bus in good time or break from electricity transfer bus; Or main control unit can control the switch of this electrical load access electricity transfer bus;
Three of typical electricity transfer bus application: charge to one or more battery in battery pack by the generating equipment of access electricity transfer bus, electric energy as utilized the generating equipment of various energy to reclaim as solar energy, wind energy, vehicle damping energy regenerating or brake energy charges to the battery that dump energy in battery pack is minimum successively, reaches the object of the discharge capacity increasing battery pack; This generating equipment need access in the communication system of intelligent battery group, can coordinate with main control unit, accesses electricity transfer bus in good time or breaks from electricity transfer bus, or main control unit can control the switch of this generating equipment access electricity transfer bus.
The beneficial effect of intelligent battery disclosed in the utility model and electricity transfer bus system is: when using the battery pack of being organized into groups by this intelligent battery and be equipped with electricity transfer bus, charging and discharge process whole process controlled, the dump energy of each battery can be redistributed on demand, do not overcharge during charging, only put the part or all of battery discharge degree of depth that can control battery pack completely during electric discharge to be consistent, extend the cycle life of battery pack, add the discharge capacity of battery pack, battery management system can be replaced completely simultaneously, the quantity of the wiring in minimizing system and wire diameter specification, improve accuracy of data acquisition, improve the accuracy that battery pack dump energy calculates, the health degree of every block battery in accurate forecast battery pack, maintenance for battery pack provides accurate forecast data, improve the reliability and security of battery pack, reduce the use cost of battery pack.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of intelligent battery.
Fig. 2 is the schematic block diagram of intelligent battery electricity shift module and charging module.
Fig. 3 is that intelligent battery is by electricity shift module supplying power for outside schematic block diagram.
Fig. 4 is the electric energy charging schematic block diagram that the charging module of intelligent battery accepts from electricity transfer bus.
Fig. 5 is one of electricity transfer bus application: the electricity transfer schematic block diagram after marshalling between battery.
Fig. 6 is two of the application of electricity transfer bus: the percentage of batteries of battery pack to be powered schematic block diagram to the electrical load of access electricity transfer bus.
Fig. 7 is three of the application of electricity transfer bus: the schematic block diagram that the generating equipment of access electricity transfer bus is charged to the battery of battery pack.
Fig. 8 is the schematic block diagram subtracting the intelligent battery marshalling of joining.
Wherein:
1 is intelligent battery;
2 is that the electricity transfer of charging module is by electric switch;
3 power supply inputs when being the charging normal of charging module;
4 is one group of electricity transfer bus;
5 is that other modules of intelligent battery are as the signal of collection/communication/storage/interactive module;
6 is electricity shift modules;
7 is isolating transformers, and available other contactless electric energy conversion conveying element substitutes);
8 be electricity shift module electricity transfer power switch;
9 is the electric energy transfer directions in electricity transfer bus;
10 is 1# batteries of battery pack, the battery that electromotive force is minimum;
11 is 2# batteries of battery pack, the battery that electromotive force is time low;
12 is 3# batteries of battery pack, the battery that electromotive force is time high;
13 is 4# batteries of battery pack, the battery that electromotive force is the highest;
14 is access switches of the generating equipment of access electricity transfer bus;
15 is access switches of the electrical load of access electricity transfer bus;
16 is communication buses, for being linked together by the communication interface of each intelligent battery of marshalling, higher level's control system, generating equipment and electrical load.
Embodiment
Below by three specific embodiments, this patent is further elaborated; following examples are descriptive; not determinate; the protection range of this patent can not be limited with this, namely those skilled in the art can principle according to the claim of this patent by suitable conversion with substitute the range of application realizing more function or expand this patent.
This patent can be applicable to any battery that needs and organizes into groups the environment used, and includes but not limited to following industry: the field such as energy storage, the battery pack of aerospace vehicle, the energy-storage battery group of naval vessel submarine of the backup battery group of the battery energy storage system, naval vessel submarine etc. of electric bicycle, electric automobile, electronic engineering truck, train, the backup power system of machine room, communication power supply, the battery pack of field movable communication base station, photovoltaic generation and wind power generation.
The positive effect of intelligent battery is the inconsistent problem in the charge and discharge process after solving battery pack marshalling, can realize the charging of battery pack active equalization, the even independent function of powering to electrical load of active equalization electric discharge, therefore embodiment 2,3 all illustrates with battery marshalling.
Embodiment 1, the intelligent battery of full configuration, as the structural schematic block diagram of Fig. 1 intelligent battery, comprise main control module, memory module, acquisition module, electricity shift module, charging module, communication module, interactive module, battery body part, transducer and interface (not shown).
Embodiment 2, the intelligent battery of full configuration, 4 pieces of intelligent battery series connection marshallings, as Fig. 5 ~ Fig. 7,1# battery 10,2# battery 11, the electromotive force of 3# battery 12,4# battery 13,4 pieces of batteries in battery pack successively from low to high, comprise higher level's control system, electricity transfer bus 4, generating equipment and electrical load, three typical apply that after including intelligent battery marshalling, electricity shifts are as follows.
One of application, electricity transfer between battery, see Fig. 5, when battery pack is in standby or discharge process, suppose that main control module monitors the dump energy of the 1# battery 10 of battery pack the highest, the dump energy of 3# battery 12 is minimum, and main control module controls each battery by communication bus 16 and whether equipment accesses electricity transfer bus 4;
The electricity transfer power switch 8 of the electricity shift module 6 of master control module controls 1# battery 10 closes, the electricity transfer of the charging module of control 3# battery 12 simultaneously closes by electric switch 2, and keeps the bus of other all batteries and equipment access switch to remain open state;
Now 1# battery 10 is powered to electricity transfer bus 4,3# battery 12 accepts to charge from the electric energy of electricity transfer bus 4, and the flow of electrical power direction 9 in electricity transfer bus, for flowing out from 1# battery 10, flow into 3# battery 12, thus achieve the electricity transfer between battery;
Until the dump energy of 1# battery 10 be reduced to rise to the average residual charge level of battery pack close to the average residual charge level of battery pack or the dump energy level of 3# battery 12 time, the electricity transfer of the electricity transfer power switch 8 and 3# battery 12 that disconnect 1# battery 10, by electric switch 2, stops electricity transfer; The highest battery of dump energy is switched to the minimum battery shifting savings of dump energy again according to the dump energy state of now up-to-date each battery, thus the state that the dump energy reaching all batteries in battery pack is substantially identical.
Two of application, the percentage of batteries of battery pack is powered to the electrical load of access electricity transfer bus, see Fig. 6, when needs start electrical load, determine after master control module judges to be powered to electrical load by 4# battery 13, main control module controls each battery by communication bus 16 and whether equipment accesses electricity transfer bus 4;
The electricity transfer power switch 8 of master control module controls 4# battery 13 closes, and the electricity transfer bus access switch 15 simultaneously controlling electrical load closes, and keeps the bus of other all batteries and equipment access switch to remain open state;
Now 4# battery 13 is powered to electricity transfer bus, electrical load accepts the electric energy from electricity transfer bus 4, flow of electrical power direction 9 in electricity transfer bus, for flowing out from 4# battery 13, flow into electrical load, thus achieve the electricity transfer of powering to electrical load with the percentage of batteries in battery pack;
When the dump energy of 4# battery 13 is low to moderate the average residual charge level of battery pack, or during electrical load closedown, automatic stopping 4# battery 13 is powered to electricity transfer bus 4, the electricity transfer bus access switch 15 of the electricity transfer switch 2 of 4# battery 13 and electrical load is disconnected, when electrical load startup next time, can be judged to use 4# battery 13 or other batteries power to electrical load according to up-to-date each battery dump energy data by main control module;
Wherein can be flowed to electrical load by the battery wheel in battery pack to power.
Three of application, the generating equipment of access electricity transfer bus is charged to the percentage of batteries of battery pack, see Fig. 7, during as electric automobile possessed brake energy recovery system, when braking, namely brake energy recovery system can be considered generating equipment, charges to dump energy is less in battery pack 1# battery 10 and 2# battery 11 in brake simultaneously;
The electricity transfer bus access switch 14 of master control module controls generating equipment closes, the electricity transfer of the charging module of control 1# battery 10 and 2# battery 11 simultaneously closes in succession by electric switch 2, and keeps the bus of other all batteries and equipment access switch to remain open state;
Now generating equipment is powered to electricity transfer bus 4,1# battery 10 and 2# battery 11 accept to charge from the electric energy of electricity transfer bus 4 simultaneously, flow of electrical power direction 9 now in electricity transfer bus, for flowing out from generating equipment, flow into 1# battery 10 and 2# battery 11, thus achieve the electricity transfer of power plant for emergency to the percentage of batteries charging in battery pack, power plant for emergency charges to the battery that dump energy in battery pack is relatively less by turns, thus add the electricity of battery pack, add the course continuation mileage of electric automobile;
The generating equipment wherein accessing electricity transfer bus can be charged to each battery by turns.
Embodiment 3, subtracts the intelligent battery marshalling of joining, sees Fig. 8,4 pieces of intelligent battery series connection marshallings, 1# battery 10,2# battery 11,3# battery 12,4# battery 13, successively from low to high, without electricity transfer bus between battery pack, all intelligent batteries all do not comprise electricity shift module to 4 pieces of batteries electromotive force in battery pack, only have 1# battery 10 to be equipped with main control module, communication module and higher level's control system of all batteries are connected together by communication bus 16.Main control module is by self acquisition module and the data of all batteries of communication module Real-time Obtaining and the interactive command information of higher level's control system, when charging, the charge parameter of every block battery is calculated according to the real time data such as degradation, dump energy of every block battery, and be transferred to each battery, and according to the up-to-date information obtained, the charge parameter of each battery is adjusted, uses the charging scheme of one of following charging scheme or mixing:
One, is full of according to the suggestion charging curve of battery;
Its two, every block battery uses different charge parameters and dynamic conditioning charge parameter, with next time electric discharge cut-off time, every block battery keeps identical depth of discharge;
Its three, receive the order of higher level's control system, be filled with electricity and maximize, namely in the temperature of monitoring battery and temperature rise in the safe range that battery can bear, part or all of over-charging of battery;
They are four years old, when charge power supply is portable power source, finite energy, the power consumption, the dormancy that reduce all modules except charging module are even closed, and the oneself power consumption of the charging module of whole charging process is down to minimum, change the charge parameter of charging module, to improve the electricity be filled with in battery as far as possible.
Claims (1)
1. an electricity transfer bus system, is characterized in that, comprise 1 to or multipair electricity transfer bus, battery, generating equipment and electrical load are coupled together, between battery, generating equipment and electrical load, realize the transfer of controlled electricity, wherein:
The quantity of battery is more than 1 or 1;
The quantity of generating equipment is 0, more than 1 or 1;
The quantity of electrical load is 0, more than 1 or 1;
All batteries, generating equipment or electrical load in access electricity transfer bus all have the switch that can unify cooperation control or the switch through unifying cooperation control realizes being connected with electricity transfer bus on electrically or disconnecting.
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| CN201520115163.4U CN204696705U (en) | 2015-02-24 | 2015-02-24 | A kind of electricity transfer bus system |
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| CN201520115163.4U CN204696705U (en) | 2015-02-24 | 2015-02-24 | A kind of electricity transfer bus system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016134658A1 (en) * | 2015-02-24 | 2016-09-01 | 刘光辰 | Smart battery, electric energy allocation bus system, battery charging and discharging method, and electric energy allocation method |
| CN106451649A (en) * | 2016-11-08 | 2017-02-22 | 北京百华悦邦科技股份有限公司 | Multi-module combined mobile power source |
-
2015
- 2015-02-24 CN CN201520115163.4U patent/CN204696705U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016134658A1 (en) * | 2015-02-24 | 2016-09-01 | 刘光辰 | Smart battery, electric energy allocation bus system, battery charging and discharging method, and electric energy allocation method |
| CN106451649A (en) * | 2016-11-08 | 2017-02-22 | 北京百华悦邦科技股份有限公司 | Multi-module combined mobile power source |
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