CN102364745A - Charging method for lithium ion power battery pack and lithium ion power battery pack system using method - Google Patents
Charging method for lithium ion power battery pack and lithium ion power battery pack system using method Download PDFInfo
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- CN102364745A CN102364745A CN2011103380085A CN201110338008A CN102364745A CN 102364745 A CN102364745 A CN 102364745A CN 2011103380085 A CN2011103380085 A CN 2011103380085A CN 201110338008 A CN201110338008 A CN 201110338008A CN 102364745 A CN102364745 A CN 102364745A
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Abstract
The invention relates to a charging method for a lithium ion power battery pack and a lithium ion power battery pack system using the method. The charging method comprises the following steps of: 1, constructing basic battery units; 2, constructing a battery module; 3, setting an electromagnetic transformer charging electric energy configuration system for supplying balanced charging voltage to each hierarchy of the basic battery units of the battery module; and 4, realizing charging and discharging control and management for the battery pack through a battery pack control and management system and an independent charging and discharging management and control unit network of each basic battery unit, and managing, controlling and protecting charging and discharging work conditions of all monomer lithium ion batteries. By the lithium ion power battery pack system, the working voltage on rectification and voltage stabilization circuit devices of the basic battery units is reduced, so the cost of the battery pack system is reduced; furthermore, a good technical way is supplied to introduction and compatibility adaptation of various alternating and direct current charging power supplies; and the charging method is particularly suitable for the lithium ion power battery pack system with a large number of monomer lithium ion power battery packs, high capacity and high voltage output.
Description
Technical field
The present invention relates to a kind of charging method of lithium-ion-power cell group and use the lithium-ion-power cell group system of this method, relate in particular to a kind of charging method of the lithium-ion-power cell group that adopts the balanced configuration charging of electromagnetic transformers and use the lithium-ion-power cell group system of this method.
Background technology
At many high power secondary battery applied technical fields, for technical needs such as the high-rate discharge ability of secondary cell, high magnification charging performance, high output voltage, highly charged capacity, monomer secondary cell technology can't satisfy.Thereby, need cell be connected and composed the secondary cell module through series, parallel or mixing, satisfy the technical needs such as highly charged capacity, high voltage and big electric current output of high power electricity servo applications technical field to secondary power supply.
Develop rapidly along with lithium-ion electric pool technology and relevant supporting technology; In existing secondary cell technology; Lithium-ion electric pool technology and other secondary cell compared with techniques are; In monomer battery voltage, gravimetric specific energy, volumetric specific energy, flash-over characteristic, charge characteristic, charged maintenance, memory effect, the feature of environmental protection, fail safe, fill/put and comprehensively compare aspect the secondary cell basic mechanical design features such as cycle life, operating temperature range, the lithium-ion electric pool technology has had clear superiority.
Under existing lithium ion battery technical conditions, because of the restriction of its technology mechanism, lithium ion battery is lower to overcharging and cross the overload ability to bear of putting, and operating characteristic at high temperature is relatively poor.If it is improper to discharge and recharge management and control, not only can causes the irreversible damage of monomer lithium ion battery, even can produce pernicious consequence such as blast.Facts have proved, only simply do the charged capacity of monomer lithium ion battery greatly not only have bigger technology difficulty, and the output voltage of monomer lithium ion battery, can not satisfy the demand of nearly all high power secondary battery applied technical field to high output voltage.Thereby the lithium ion secondary power supply of high output voltage, big charged capacity can only be realized through tandem type or hybrid type lithium ion battery module mode.
Under existing lithium ion battery system engineering condition, the charged capacity of volume production monomer lithium ion battery certainly exists certain consistency difference.When constituting battery pack,, then can cause partial monosomy battery overcharge or overdischarge at the charge and discharge process of series loop if the charge and discharge balancing control and management is mishandling by the monomer lithium ion battery series connection that has consistency difference.And ager process along with battery pack; Overcharge or cross due to the material flaw put phenomenon and all can impel the partial monosomy battery, the system engineering process difference consistency difference and amplify dominance; Aging and the periodic duty life-span condition differentiation of accelerating part cell finally can cause battery pack to lose efficacy fast because of the partial monosomy battery produces irreversible damage.Thereby; When the monomer lithium ion battery constitutes battery pack; Must take all monomer lithium ion battery charge independence control and managements, and take technical measures such as the protection of effectively ultra multiplying power discharging, extreme short-circuit protection, the protection of voltage antipole, ultra-high temperature protection, quality estimation and the adjustment of management and control strategy.
The high-capacity lithium-ion power battery group nearly all requires to have higher output voltage; For this reason; The lithium-ion-power cell group must satisfy the high output voltage requirement to power battery pack through the series connection of monomer lithium ion battery; And the monomer lithium ion battery through series connection obtain adding up of all series connection monomer cell output voltages and after; But produced the cell that will make all participate in series connection and can effectively implement the management and control of charging, the charging cut-ff voltage that charging voltage requires to be higher than all series connection cells add up with.But be higher than civil power at power battery pack charging cut-ff voltage, and the low-voltage electric energy that produces with the transducing mode of ask for something is when charging effectively to power battery pack, then must charging voltage be promoted to and charges after being higher than the batteries charging cut-ff voltage.The way of boosting that the current driving force batteries management system extensively adopts is after the employing high-power electric semiconductor device inversion boosting, to all cells charging control management system rechargeable electrical energy to be provided with the parallel powering mode.Produced high-power electric semiconductor inversion device thus and must have higher permission operating voltage, and the related device of all cell charging control and management unit also must have higher permission operating voltage.Under existing semiconductor device art condition, the cost of same model or semiconductor device of the same type depends primarily on it and allows operating voltage, and the cost rising ratio of semiconductor device surpasses the rising ratio that it allows operating voltage.Thereby, effectively reduce the operating voltage of high-power electric semiconductor inversion device and cell charging control and management unit related device, be directly connected to the cost of lithium-ion-power cell group control management system.
The secondary power supply application market is very ripe to the expectation of lithium-ion-power cell group; Solve the monomer lithium ion battery connects and composes the lithium-ion-power cell group through series, parallel or mixing technical problem; Can create the basic technology condition quoting of secondary power supply applications such as hybrid vehicle, pure electric automobile, battery-operated motor cycle and bicycle, electric tool, electric power system, the railway system, communication engineering system to the lithium-ion-power cell group undoubtedly; And the lithium-ion-power cell group also can promote the application system technical performance in these fields because of the technological progress of secondary power supply system in the application in these fields.
Summary of the invention
The object of the present invention is to provide a kind of charging method of lithium-ion-power cell group and use the lithium-ion-power cell group system of this method; Through the intelligent management and control that independently discharges and recharges management and control and battery pack system to all monomer lithium ion batteries; Realize the control and management that discharges and recharges of battery pack, and the condition of work that discharges and recharges of all monomer lithium ion batteries is implemented management and control and protection; And through the balanced configuring technical of the multistage bootstrapping charging voltage of electromagnetic transformers; Reduced the operating voltage of basic batteries charging control and management unit; Reduced the cost of lithium-ion-power cell group system thus, and quoted and the compatible adaptive good technical approach that provides for the charging of various powers of alterating and direct current.
To achieve these goals, the present invention proposes a kind of charging method of lithium-ion-power cell group, comprising:
In the step 3, said electromagnetic transformers rechargeable electrical energy configuration-system comprises: electromagnetic transformers, dc inversion control system, interchange input control system, electromagnetic induction detection system; Said electromagnetic transformers comprises: soft magnetic material is unshakable in one's determination, winding, secondary winding; Winding of said electromagnetic transformers comprises: winding of dc inversion excitation, direct winding of AC excitation; The secondary winding of said electromagnetic transformers comprises: multistage bootstrapping secondary winding, electromagnetic induction detect secondary winding.
In the step 1, said basic battery unit comprises: the monomer lithium ion battery, independently discharge and recharge management and control unit, installation and radiator structure support; The described management and control unit that independently discharges and recharges comprises: unit management and control MCU and peripheral circuit thereof, rectification circuit, charging current and voltage control circuit, charging/discharging voltage and charging current observation circuit, antipole forced electric discharge protective circuit, temperature sensing circuit, series charging level buffer circuit, internal lan interface circuit; Be filled with charge parameter management and control program, quality strategy and database management and control program, networking management and control program in said unit management and control MCU or the memory that connects.
Said step 2 comprises: with some basic battery unit series connection, constitute the series-connected cell module; With some series-connected cell module parallel connections, constitute the series-parallel connection battery modules.
Said step 3 comprises: step 3.1; Said dc inversion control system; Different voltage magnitude DC charging electric energy with the external circuit submission; Inversion is regulated and control to winding of dc inversion excitation of the AC energy input electromagnetic transformers of design specification, and passes through the detection data adjustment inversion control parameter that the electromagnetic induction detection system is submitted to; Said interchange input control system is with winding of direct AC excitation of the AC energy access electromagnetic transformers of importing; Step 3.2, the multistage bootstrapping secondary winding of said electromagnetic transformers is decomposed into the electromagnetic induction electromotive force and each level correspondent voltage section of series-connected cell module, balanced charging voltage is provided for respectively the basic battery unit of each level of series loop; The electromagnetic induction of said electromagnetic transformers detects secondary winding, submits the electromagnetic induction sense potential sample of electromagnetic transformers system control to for the electromagnetic induction detection system; Respectively the connect basic battery unit of level of step 3.3, said series-connected cell module, the corresponding level winding from the multistage bootstrapping secondary winding of electromagnetic transformers obtains rechargeable electrical energy respectively, and by preset charged management and control program to the monomer lithium ion cell charging; Step 3.4, said series-parallel connection battery modules electromagnetic transformers configuration mode is taked each series-connected cell module electromagnetic transformers pattern of configuration separately, or takes the pattern of the shared electromagnetic transformers of a plurality of series-connected cell modules; Taking each series-connected cell module to dispose under the electromagnetic transformers pattern separately; This series-connected cell module respectively connect level basic battery unit respectively from this series-connected cell module separately the corresponding level winding of the multistage bootstrapping secondary winding of the electromagnetic transformers of configuration obtain rechargeable electrical energy, and by preset charged management and control program to the monomer lithium ion cell charging; Under the pattern of taking the shared electromagnetic transformers of a plurality of series-connected cell modules; The basic battery unit of same level of each series-connected cell module obtains rechargeable electrical energy from the corresponding level winding of the multistage bootstrapping secondary winding of shared electromagnetic transformers jointly, and respectively by the monomer lithium ion cell charging of preset charging management and control program to management and control separately.
Said step 4 comprises: step 4.1; Battery pack control management system and each basic battery unit independently discharge and recharge the networking of management and control unit; Constitute the inner distributed local control management system of battery pack; Said battery pack control management system comprises: central processing unit system, electric current and voltage and temperature-sensing system, power electronics control system, demonstration and control system, external communication interface system are filled with battery set charge/discharge management and control program, system's programming information and basic data library, networking strategy and node management and control program, external call function and management and control program in said central processing unit system or the memory device that connects; Step 4.2; Said battery pack control management system and each basic battery unit independently discharge and recharge the management and control unit; Set up the communication of management and control instruction and data through the battery pack internal lan, realize that with the management and control strategy of default control hypervisor the mode of operation of battery pack being discharged and recharged condition of work with all monomer lithium ion batteries carries out management and control and protection; Step 4.3, said battery pack control management system is set up the communication of management and control instruction and data through external communication interface and outside control-management system, and the external call interface protocol can be SBS, CAN or self-defining interface communication protocol; Described external communication interface can be SBS, CAN or self-defining external data communication interface.
The present invention also provides a kind of lithium-ion-power cell group system that uses the charging method of above-mentioned lithium-ion-power cell group; It is characterized in that; Said lithium-ion-power cell group system comprises: battery modules, battery pack control management system, electromagnetic transformers rechargeable electrical energy configuration-system, battery pack structure support, housing and heat radiation cooling system that some basic battery unit series connection or series-parallel connection constitute; Said heat radiation cooling system and battery pack control management system are installed on the battery pack structure support; Said battery modules and electromagnetic transformers rechargeable electrical energy configuration-system can be combined as detachable dongle configuration and be installed on the said battery pack structure support; Also can electromagnetic transformers rechargeable electrical energy configuration-system be installed on the said battery pack structure support, battery modules be combined as detachable dongle configuration be installed on the said battery pack structure support.
Said basic battery unit comprises: the monomer lithium ion battery, independently discharge and recharge PCB, installation and the radiator structure support that each electronic circuit system of management and control unit is formed; And structurally combine and assemble is together; Through the locating support and the interface of structural framing, be installed in the lithium-ion-power cell group, said monomer lithium ion battery with independently discharge and recharge the management and control unit; Structurally can be packaged together, also can separate.
The AC power of an adaptive input of winding of said direct AC excitation comprises: the alternating current that electric main, industrial power alternating current, all kinds of alternating current generator send, the alternating current that all kinds of electronic system is sent.
The configuration mode of the electromagnetic transformers rechargeable electrical energy configuration-system of said lithium-ion-power cell group system; Can take each series mould set electromagnetic transformers rechargeable electrical energy configuration-system of configuration separately, also can take the pattern of the shared electromagnetic transformers rechargeable electrical energy configuration-system of a plurality of series mould set.
Beneficial effect of the present invention: the charging method of lithium-ion-power cell group of the present invention and use the lithium-ion-power cell group system of this method; Adopt the bootstrapping series connection level voltage configuring technical of electromagnetic transformers rechargeable electrical energy configuration-system; Balanced charging voltage can be provided to the basic battery unit of each level of series mould set; And the charging voltage that each basic battery unit obtains is equal basically; And can on satisfying the basis of minimum charging voltage, be controlled in the less relatively amplitude range; Reduced the operating voltage that basic battery unit rectification and voltage stabilizing circuit device bear thus; Thereby reduced battery pack control management system cost, and be the quoting and the compatible adaptive good technical approach that provides of various alternating current-direct current charge power supplies, especially be fit to big quantity monomer lithium ion battery in groups, the lithium-ion-power cell group system of big capacity, high voltage output.
In order further to understand characteristic of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide reference and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing, describe in detail through specific embodiments of the invention, will make technical scheme of the present invention and other beneficial effects obvious.
Fig. 1 is the charging method schematic flow sheet of lithium-ion-power cell group of the present invention;
Fig. 2 is the basic battery unit electricity schematic block diagram of lithium-ion-power cell group system of the present invention;
Fig. 3 is the entity structure sketch map of Fig. 2;
Fig. 4 is electromagnetic transformers rechargeable electrical energy configuration-system electricity schematic block diagram of the present invention;
Fig. 5 is the tandem type lithium-ion-power cell group system electricity schematic block diagram of first embodiment of the invention;
Fig. 6 a-6c is the entity structure sketch map of Fig. 5;
Fig. 7 is the hybrid type lithium-ion-power cell group system electricity schematic block diagram of second embodiment of the invention;
Fig. 8 a-8d is the entity structure sketch map of Fig. 7;
Fig. 9 is the hybrid type lithium-ion-power cell group system electricity schematic block diagram of third embodiment of the invention;
Figure 10 a-10f is the entity structure sketch map of Fig. 9.
Embodiment
For further setting forth technological means and the effect that the present invention takes for the predetermined purpose of realization; See also following about detailed description of the present invention and accompanying drawing; Believe the object of the invention, characteristic and characteristics; Should obtain thus going deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the present invention is limited.
Shown in Fig. 1-10, the charging method flow process of lithium-ion-power cell group of the present invention comprises:
In step 4, the lithium-ion-power cell group discharge course of work: the lithium-ion-power cell group is provided with direct discharge mode and management and control discharge mode.Under direct discharge mode; Battery pack control management system control discharged power electronic control system is directly discharged to external circuit; Under the management and control discharge mode, the battery pack control management system is according to controlling or communication management and control instruction, and control discharged power electronic control system is carried out discharge or closed.Which kind of discharge mode no matter; During battery power discharge; Rate of discharge depends on battery pack output potential and external resistance satisfying under the preset technical conditions such as battery pack permission discharge-rate, all monomer lithium ion battery 130 ending discharge voltages, working temperature.
Lithium-ion-power cell group direct current energy charging process: the lithium-ion-power cell group is provided with automatic charge mode and management and control charge mode.Under automatic charge mode; The battery pack control management system detects external circuit voltage automatically; Exist when being higher than battery power discharge voltage and battery pack state of the art and meeting charge condition when battery pack is in discharge condition and external circuit, stop discharge automatically and switch to charged state, when battery pack is in the discharge halted state; And external circuit exists when being higher than the minimum charging voltage of design specification and battery pack state of the art and meeting charge condition, gets into charged state automatically.Under the management and control charge mode, the battery pack control management system stops discharge and switches to charged state according to controlling or communication charging management and control instruction.No matter which kind of pattern to get into charged state from; During charging; Direct current energy input control and dc inversion control circuit 210 are winding 222 of dc inversion excitation of the AC energy input electromagnetic transformers 220 of design specification amplitude with the inversion of external circuit direct current energy; The multistage bootstrapping secondary winding 224 of electromagnetic transformers 220 is decomposed into the voltage section with the electromagnetic induction electromotive force, balanced charging voltage is provided for respectively the basic battery unit 100 of each level of series loop.Taking DC charging electric energy input circuit and battery pack output circuit to separate, and the DC charging electric energy is directly being inserted under the circuit-mode of direct current energy input control and inversion system 210, charging when battery pack system can be implemented in discharge.
Lithium-ion-power cell group AC energy charging process: the battery pack control management system detects ac input end automatically; Detecting that the AC energy that meets design specification inserts and battery pack state of the art when meeting charge condition; AC energy is imported the once direct AC excitation winding 223 of electromagnetic transformers 220 through exchanging input control system 211; The multistage bootstrapping secondary winding 224 of electromagnetic transformers 220; The electromagnetic induction electromotive force is decomposed into the voltage section, balanced charging voltage is provided for respectively the basic battery unit 100 of each level of series loop.Under the AC energy charge mode, can in discharge, charge with battery pack system.The AC power of said direct AC excitation winding 223 adaptive inputs comprises: the alternating current that electric main, industrial power alternating current, all kinds of alternating current generator send, the alternating current that all kinds of electronic system is sent.
The present invention also provides a kind of lithium-ion-power cell group system that uses above-mentioned lithium-ion-power cell group charging method; Comprise battery modules, battery pack control management system, electromagnetic transformers rechargeable electrical energy configuration-system 200, battery pack structure support, housing and heat radiation cooling system that some basic battery unit 100 series connection or series-parallel connection constitute; Said heat radiation cooling system and battery pack control management system are installed on the battery pack structure support in the housing; Said battery modules and electromagnetic transformers rechargeable electrical energy configuration-system 200 can be combined as detachable dongle configuration and be installed on the said battery pack structure support; Also can electromagnetic transformers rechargeable electrical energy configuration-system 200 be installed on the said battery pack structure support, battery modules be combined as detachable dongle configuration be installed on the said battery pack structure support.Because the reliability and the theoretical work life-span of monomer lithium ion battery 130; All be lower than other system of battery pack; And from electric property, mechanical performance, system engineering process property, compatibility and interchangeability to the lithium-ion-power cell group system; And applied environment, maintenance is convenient and aspect such as standardization is considered, uses the lithium-ion-power cell group system entity structure of above-mentioned lithium-ion-power cell group charging method following:
Single group tandem type lithium-ion-power cell group system 300 entity structures are as shown in Figure 6: comprise series-connected cell module, electromagnetic transformers rechargeable electrical energy configuration-system 200, battery pack control management system; The basic battery unit 100 of all of series-connected cell module is combined as detachable dongle configuration; And be installed on the battery pack system structure stand through the battery pack system interface, electromagnetic transformers rechargeable electrical energy configuration-system 200 and battery pack control management system device are on the battery pack system structure stand.
Hybrid type lithium-ion-power cell group system 400 entity structures of taking electromagnetic transformers rechargeable electrical energy configuration-system pattern of the independent configuration of each series-connected cell module to constitute are as shown in Figure 8: comprise that battery pack control management system, some series-connected cell modules and electromagnetic transformers rechargeable electrical energy configuration-system 200 are combined as detachable configuration plug; Battery pack control management system device is on the battery pack system structure stand; The detachable configuration plug of each series-connected cell module and 200 combinations of electromagnetic transformers rechargeable electrical energy configuration-system is installed on the battery pack system structure stand through the battery pack system interface.
Take hybrid type lithium-ion-power cell group system 500 entity structures that the shared electromagnetic transformers rechargeable electrical energy configuration-system pattern of a plurality of series mould set constitutes shown in accompanying drawing 10: to comprise some series-connected cell module 520, electromagnetic transformers rechargeable electrical energy configuration-system 200, battery pack control management system; Battery pack control management system and electromagnetic transformers rechargeable electrical energy configuration-system 200 devices are on battery pack system foundation structure; Each series-connected cell module 520 is detachable dongle configuration, and is installed on the battery pack system structure stand through the battery pack system interface.
Fig. 2 is the basic battery unit electricity theory diagram of lithium-ion-power cell group system of the present invention; The electrical system of this basic battery unit 100; Constitute by monomer lithium ion battery 130 and independent control and management unit; Described independent control and management unit comprises: unit management and control MCU and peripheral circuit 110 thereof, rectification circuit 120, charging current and voltage control circuit 111, antipole forced electric discharge protective circuit 121, charging/discharging voltage and charging current observation circuit 112, temperature sensing circuit 123, series charging level buffer circuit 122, internal lan connect 102, in this MCU or the memory that connects, are filled with charge parameter management and control program, quality strategy and database management and control program, networking management and control program.
The discharge operation principle of basic battery unit 100: during 130 discharges of monomer lithium ion battery, discharging current is exported, is constituted discharge loop through external circuit to unit negative pole end 109 to monomer lithium ion battery 130 through monomer lithium ion battery 130, series charging level buffer circuit 122, unit cathode output end 101.Diode circuit 121 constitutes antipole forced electric discharge protective circuit, prevents that the forced electric discharge of monomer lithium ion battery 130 over-discharge states from producing antipole.The discharge working temperature of the discharge voltage of charging/discharging voltage and charging current observation circuit 112 monitoring monomer lithium ion batteries 130 and current state of charge, temperature sensor 123 monitoring lithium ion batteries 130.
Fig. 3 is the basic battery unit inserter noumenon structural representation of lithium-ion-power cell group system of the present invention; Basic battery unit 100 entity structures comprise: monomer lithium ion battery 130, independently discharge and recharge PCB, installation and radiator structure support 140 and 141 of management and control unit component formation; And structurally combine and assemble constitutes basic battery unit plug-in unit together.Basic battery unit plug-in unit inserts battery pack system through external charging AC energy input interface 104 and 105, battery pack control internal lan interface 102, unit zero level interface 109, the anodal output interface 101 in unit of PCB forme.
Fig. 4 is the electromagnetic transformers rechargeable electrical energy configuration-system electricity schematic block diagram of lithium-ion-power cell group system of the present invention; Electromagnetic transformers rechargeable electrical energy configuration-system 200 is made up of electromagnetic transformers 220, dc inversion control circuit 210, AC energy access control circuit 211, electromagnetic induction testing circuit 212, management and control interface 202 and 203, detection data-interface 206; Said electromagnetic transformers 220 is detected secondary winding 225 and is constituted by soft magnetic material iron core 221, winding 222 of dc inversion excitation, direct winding 223 of AC excitation, multistage bootstrapping secondary winding 224, electromagnetic induction.In the battery pack series loop that constitutes by a plurality of basic battery unit 100 series connection; Adopt electromagnetic transformers 220 that the rechargeable electrical energy of an excitation winding input is configured to the voltage section of design specification through multistage bootstrapping secondary winding 224, balanced charging voltage is provided for respectively the basic battery unit 100 of each level of series loop.Winding 223 of said direct AC excitation can be according to battery pack application demand and AC power technical conditions; Design is corresponding to be inserted the number of phases, no-load voltage ratio and connects method etc., and adaptive input comprises: the alternating current that electric main, industrial power alternating current, all kinds of alternating current generator send, the AC powers such as alternating current that all kinds of electronic system is sent.
When input dc power can charge; The direct current energy of input converts winding 222 excitations of dc inversion excitation of the AC energy input electromagnetic transformers 220 of design specification into through dc inversion circuit 210; Induct with the frequency AC energy in multistage bootstrapping secondary winding 224; Decompose configuration through multistage bootstrapping secondary winding 224, the charging voltage of equilibrium is provided to the basic battery unit of each level of series mould set.Disregarding under the loss condition; The induced potential Ua=U1+U2+U3 of multistage bootstrapping secondary winding 224 ... + Un depends on that the umber of turn of a winding 222 of multistage bootstrapping secondary winding 224 and dc inversion excitation of excitation electromotive force Uid and the electromagnetic transformers of a winding 222 of dc inversion excitation compares N224/N222.
When the input AC electric energy charges; The AC energy of input inserts winding 223 excitations of direct AC excitation through AC energy access control circuit 211; Induct with the frequency AC energy in multistage bootstrapping secondary winding 224; Decompose configuration through multistage bootstrapping secondary winding 224, the charging voltage of equilibrium is provided to the basic battery unit of each level of series mould set.Disregarding under the loss condition; The induced potential Ua=U1+U2+U3 of multistage bootstrapping secondary winding 224 ... + Un depends on that the umber of turn of a winding 223 of multistage bootstrapping secondary winding 224 and direct AC excitation of excitation electromotive force Uia and the electromagnetic transformers of a winding 223 of direct AC excitation compares N224/N223.
Which kind of charge power supply pattern no matter, U1, U2, U3 ..., Un be respectively series mould set ground floor, the second layer, the 3rd layer ..., the n layer basic battery unit charged electric potential.Because multistage bootstrapping secondary winding 224 is designed to N224=N1+N2+N3 ... + Nn; And N1=N2=N3=...=Nn; Thereby the charging voltage that multistage bootstrapping secondary winding 224 provides for the basic battery unit of each level of series mould set is equal basically, i.e. U1=U2=U3=...=Un.For the charging management and control of monomer lithium ion battery 130,5V≤U1=U2=U3=...=Un≤10V can satisfy monomer lithium ion cell charging management and control technical need fully.Thereby; Significantly reduced the operating voltage that each basic battery unit rectification and voltage stabilizing circuit electronic device bear; Thereby reduced the cost of battery pack control management system; Especially monomer lithium ion battery 130 quantity that constitute battery modules are more, the series mould set level is many more, and the advantage of low cost of battery pack system is just remarkable more.
Fig. 5 is the tandem type lithium-ion-power cell group system electricity theory diagram of first embodiment of the invention; Tandem type lithium-ion-power cell group system 300 is made up of battery pack control management system, electromagnetic transformers rechargeable electrical energy configuration-system 200 and tandem type battery modules.The battery pack control management system is made up of with control system 319, internal lan interface circuit 302 battery pack central processing unit system 310, battery power discharge electric current and voltage and temperature-sensing system 311, discharged power electronic control system 312, reverse blocking circuit 314, demonstration.The tandem type battery modules is composed in series by some basic battery units 100.Electromagnetic transformers rechargeable electrical energy configuration-system 200 is made up of electromagnetic transformers 220, dc inversion control circuit 210, AC energy access control circuit 211, electromagnetic induction testing circuit 212.Electromagnetic transformers 220 is detected secondary winding 225 and is formed by soft magnetic material iron core 221, winding 222 of dc inversion excitation, direct winding 223 of AC excitation, multistage bootstrapping secondary winding 224, electromagnetic induction.
The discharge operation principle of tandem type lithium-ion-power cell group system 300: each basic battery unit 100 electromotive force of series connection add up and form the series connection electromotive force in the serial battery pack system 300; Insert load at 309 at series battery cathode output end 301 and zero level end and constitute discharge loop, discharging current depends on the electrical potential difference and the external resistance of 309 at cathode output end 301 and zero level end.During serial battery pack system 300 discharge, discharging current is through the basic battery unit of each level 100, discharging current and voltage and temperature-sensing system 311, discharged power electronic control circuit 312, reverse blocking circuit 314,301 outputs of module cathode output end, constitute discharge loops through external circuit to series mould set system zero level end 309.In the discharge process; The forced electric discharge protection diode 121 of the basic battery unit 100 of each level prevents that the forced electric discharge of monomer lithium ion battery over-discharge state from producing reversed polarity, the discharge working temperature of the discharge voltage state of discharge voltage observation circuit 112 monitoring monomer lithium ion batteries 130, temperature sensor 123 monitoring monomer lithium ion batteries 130.
The DC charging operation principle of tandem type lithium-ion-power cell group system 300: detect at battery pack central processing unit system 310 and to have external circuit DC charging electric energy; Or battery pack central processing unit system 310 connects 302 through outside management and control communication and receives charging management and control when instruction; Central processing unit system 310 control discharged power electronic control systems 312 stop discharge, accept outside DC charging electric energy through holding 301.Outside DC charging electric energy is through end 301; Send into dc inversion control circuit 210; Dc inversion control circuit 210 is under 310 controls of battery pack central processing unit system; DC charging electric current and magnitude of voltage decision inversion control parameter according to input; With the direct current energy inversion of different voltage magnitudes of input is winding 222 excitations of dc inversion excitation that the AC energy of design specification is sent into electromagnetic transformers 220, and the multistage bootstrapping secondary winding 224 of electromagnetic transformers 220 is decomposed into the voltage section with the electromagnetic induction electromotive force, rechargeable electrical energy is provided for respectively the basic battery unit 100 of each level of series loop.
The extrapolation AC charging operation principle of tandem type lithium-ion-power cell group system 300: take the extrapolation AC energy when serial battery pack system 300 chargings; The extrapolation AC energy through input 304 and 305, AC energy input control circuit 211, send into winding 223 excitations of direct AC excitation of electromagnetic transformers 220; The multistage bootstrapping secondary winding 224 of electromagnetic transformers 220 is decomposed into the voltage section with the electromagnetic induction electromotive force, rechargeable electrical energy is provided for respectively the basic battery unit 100 of each level of series loop.When taking the extrapolation AC energy to serial battery pack system 300 chargings, serial battery pack system 300 can discharge in charging.
Fig. 6 a-6c is the entity structure sketch map of Fig. 5; Fig. 6 a is the entity structure surface sketch map of Fig. 5, and when battery pack system work and needs cooling, cooling air sucks battery pack through filtering air inlet 320; With the internal heat dissipation structures heat exchange after, discharge through exhaust 321.The demonstration and the control system 319 of cascaded lithium ion electrokinetic cell group system 300 can show parameters such as battery pack operating state, and can inquire about preset and real time information such as battery pack dump energy, cycles left life-span, battery temperature, each unit hardware detection conclusion.Fig. 6 b is the entity structure external interface characteristic sketch map of Fig. 5, and total interface takes self-locking device to insert locking.Battery anode output 301 is used for being connected with external circuit with battery pack negative pole end 309, and takes anti-misconnection to take utmost point mechanical structure to prevent the electrode misconnection.Extrapolation AC energy input interface 304 and 305 is used for the extrapolation alternating current charging and inserts.Outside management and control communication interface 302 is used for and external control management system information interaction.Fig. 6 c is the entity structure internal feature sketch map of Fig. 5; Each basic battery unit plug-in unit 100 is installed on the battery pack pedestal through installing with radiator structure support 140 and 141, and the external charging AC energy input interface 104 and 105 through the PCB forme, battery pack internal lan interface 102, zero level interface 109, the anodal output interface 101 access battery pack systems of battery unit 100 basically of battery unit 100 basically.
Fig. 7 is a second embodiment of the invention hybrid type lithium-ion-power cell group system electricity theory diagram; Present embodiment is: adopt each series-connected cell module electromagnetic transformers rechargeable electrical energy configuration-system 200 of configuration separately, constitute hybrid type lithium-ion-power cell group system 400 schemes.
Hybrid type lithium-ion-power cell group system 400 is made up of battery pack control management system and hybrid type battery modules.The battery pack control management system is made up of battery pack central processing unit system 410, battery power discharge electric current and voltage and temperature-sensing system 411, discharged power electronic control system 412, reverse blocking circuit 414, demonstration and control system 419, exterior tube control interface circuit 402.The hybrid type battery modules is made up of several series-connected cell module 300 parallel connections that comprise separate configurations electromagnetic transformers rechargeable electrical energy configuration-system 200.
The discharge operation principle of hybrid type lithium-ion-power cell group system 400: each series battery 300 of parallel connection in the series-parallel connection battery pack system 400; Form the series connection electromotive force at series-parallel connection battery anode output 401 and 409 at zero level end; Ignore under series-connected cell module inhomogeneities and the management and control device pressure drop condition, the output potential of series-parallel connection battery pack system 400 equals the output potential of each series battery 300.Insert load at 409 at series-parallel connection battery anode output 401 and zero level end and constitute discharge loop, discharging current depends on the electrical potential difference and the external resistance of 409 at cathode output end 401 and zero level end.During 400 discharges of series-parallel connection battery pack system, the output current parallel connection of each series battery 300 compiles, and total current equals the output current sum of each series battery 300.
The DC charging operation principle of hybrid type lithium-ion-power cell group system 400: detect at battery pack central processing unit system 410 and to have external circuit DC charging electric energy; Or battery pack central processing unit system 410 is when receiving charging instruction through outside management and control communication interface 402; Central processing unit system 410 control discharged power electronic control systems 412 stop discharge, accept outside DC charging electric energy through port 401.Outside DC charging electric energy is through port 401, charging steering circuit 415; Transfer to each series-connected cell module 300; Send into dc inversion control circuit 210 through port 301; Dc inversion control circuit 210 is under 310 controls of battery pack central processing unit system; DC charging electric current and magnitude of voltage decision inversion control parameter according to input; With the direct current energy inversion of different voltage magnitudes of input is winding 222 excitations of dc inversion excitation that the AC energy of design specification is sent into electromagnetic transformers 220, and the multistage bootstrapping secondary winding 224 of electromagnetic transformers 220 is decomposed into the voltage section with the electromagnetic induction electromotive force, balanced charging voltage is provided for respectively the basic battery unit 100 of each level of series loop.
The AC charging operation principle of hybrid type lithium-ion-power cell group system 400: take the extrapolation AC energy when 400 chargings of series-parallel connection battery pack system; The extrapolation AC energy is through the ac input end mouth 404 and 405 of series-parallel connection battery pack system 400; Parallel each the series battery 300 ac input end mouth 304 and 305 that connects of input; AC energy input control circuit 211 through each series battery 300, send into winding 223 excitations of direct AC excitation of the electromagnetic transformers 220 of each series battery 300; The multistage bootstrapping secondary winding 224 of electromagnetic transformers 220 is decomposed into the voltage section with the electromagnetic induction electromotive force, balanced charging voltage is provided for respectively the basic battery unit 100 of each level of series loop.When taking the extrapolation AC energy to 400 chargings of series-parallel connection battery pack system, series-parallel connection battery pack system 400 can discharge in charging.
Fig. 8 is the entity structure sketch map of Fig. 7; Wherein Fig. 8 a is the entity structure surface sketch map of Fig. 7; Battery pack system 400 cathode output ends 401 are used for to external load circuit output electric energy with battery pack negative pole end 409, and take anti-misconnection to take electrode structure to prevent the electrode misconnection.Extrapolation AC energy input interface 404 and 405 is used for the extrapolation alternating current charging and inserts.Outside management and control communication interface 402 is used for and external control management system information interaction, and the total interface system takes self-locking device to insert locking.Battery pack system is when 400 discharge and recharge work and need cooling, and the control management system cooling duct is: cooling air sucks battery pack through filtering air inlet 430 with 431, with the internal heat dissipation structures heat exchange after, through 433 discharges (not shown) of rear part exhaust mouth.Series-connected cell module system cooling duct is: cooling air sucks battery pack through filtering air inlet 432, with the internal heat dissipation structures heat exchange after, discharge (not shown) through rear part exhaust mouth 433.The demonstration of series-parallel connection battery pack system 400 and control system 419 can show parameters such as battery pack operating state, and can inquire about preset and real time information such as battery pack dump energy, residual life, battery pack temperature, unit hardware detection conclusion.Fig. 8 b is the entity structure internal feature sketch map of Fig. 7; But each serial battery pack system 300 is combined as the independence connect-disconnect structure with supporting electromagnetic transformers rechargeable electrical energy configuration-system 200; Be installed on the battery pack system 400 structure pedestals through installation and radiator structure support, and insert battery pack systems 400 through external charging AC energy input interface 304 and 305, internal lan interface 302, zero level interface 304, anodal output interface 301.Fig. 8 c, Fig. 8 d are the combined plug-in entity structure sketch map of the series-connected cell module system 300 of Fig. 7; Some basic battery unit 100 dongle configuration; Be installed in through interface and fastener on the combined plug-in entity structure of series-connected cell module system 300; The central processing unit system 310 of series-connected cell module system 300, discharged power electronic control system 312, electromagnetic transformers rechargeable electrical energy configuration-system 200 devices are on the combined plug-in entity structure of series-connected cell module system 300; The cathode output end 301 of the combined plug-in of series-connected cell module system 300, zero level end 309, ac input end 304 and 305, management and control communication connect 302, insert series-parallel connection battery pack system 400 through connector.
Electromagnetic transformers rechargeable electrical energy configuration-system 200 dispersed placement in each serial battery pack system 300, are beneficial to the structure heat radiation and the system engineering test of battery pack system.When certain serial battery pack system 300 breaks down, discharge and recharge use but meet an urgent need behind the closing fault serial battery pack system, and the battery pack system output voltage is constant, reduces but charged capacity is corresponding.
Fig. 9 is a third embodiment of the invention hybrid type lithium-ion-power cell group system electricity theory diagram, and present embodiment is: whole shared electromagnetic transformers rechargeable electrical energy configuration-systems 200 of series mould set constitute hybrid type lithium-ion-power cell group system 500 schemes.Hybrid type lithium-ion-power cell group system 500 is made up of battery pack control management system, electromagnetic transformers rechargeable electrical energy configuration-system 200 and hybrid type battery modules.The battery pack control management system is made up of battery pack central processing unit system 510, battery power discharge electric current and voltage and temperature-sensing system 511, discharged power electronic control system 512, reverse blocking circuit 514, demonstration and control system 519, exterior tube control interface circuit 502.Electromagnetic transformers rechargeable electrical energy configuration-system 200 is made up of electromagnetic transformers 220, dc inversion control circuit 210, AC energy access control circuit 211, electromagnetic induction testing circuit 212.Electromagnetic transformers 220 is detected secondary winding 225 and is formed by soft magnetic material iron core 221, winding 222 of dc inversion excitation, direct winding 223 of AC excitation, multistage bootstrapping secondary winding 224, electromagnetic induction.The hybrid type battery modules, the series-connected cell module 520 that is made up of several basic battery unit 100 series connection that comprise equal number composes in parallel.
Hybrid type lithium-ion-power cell group system 500 discharge operation principles: cathode output end 521 parallel connections of each series battery 520 in the series-parallel connection battery pack system 500; Cathode output end 501 and 509 at zero level end at series-parallel connection battery pack system 500 form the series connection electromotive force; Ignore under series-connected cell module inhomogeneities and the management and control device pressure drop condition, the output potential of series-parallel connection battery pack system 500 equals each series battery 520 output potential.Insert load at the cathode output end 501 of series-parallel connection battery pack system 500 and 509 at zero level end and constitute discharge loop, discharging current depends on the electrical potential difference and the external resistance of 509 at cathode output end 501 and zero level end.During 500 discharges of series-parallel connection battery pack system, the output current parallel connection of each series battery 520 compiles, and total current equals the output current sum of each series battery 520.
The DC charging operation principle of hybrid type lithium-ion-power cell group system 500: detect through cathode output end 501 at battery pack central processing unit system 510 and to have external circuit DC charging electric energy; Or battery pack central processing unit system 510 is when receiving charging instruction through outside management and control communication interface 502; Central processing unit system 510 control discharged power electronic control systems 512 stop discharge, accept outside DC charging electric energy through cathode output end 501.Outside DC charging electric energy is sent into dc inversion control circuit 210 through cathode output end 501; Dc inversion control circuit 210 is under 510 controls of battery pack central processing unit system; DC charging electric current and magnitude of voltage decision inversion control parameter according to input; With the direct current energy inversion of different voltage magnitudes of input is winding 222 of dc inversion excitation that the AC energy of design specification is sent into electromagnetic transformers 220; The multistage bootstrapping secondary winding 224 of electromagnetic transformers 220 is decomposed into the voltage section with the electromagnetic induction electromotive force, balanced rechargeable electrical energy is provided for respectively the basic battery unit 100 of each series battery 520 corresponding level.
The AC charging operation principle of hybrid type lithium-ion-power cell group system 500: take the extrapolation AC energy when 500 chargings of series-parallel connection battery pack system; The extrapolation AC energy is through the ac input end mouth 504 and 505 of series-parallel connection battery pack system 500; AC energy input control circuit 211 through electromagnetic transformers rechargeable electrical energy configuration-system 200; Winding 223 excitations of the input direct AC excitation of electromagnetic transformers; The multistage bootstrapping secondary winding 224 of electromagnetic transformers is decomposed into the voltage section with the electromagnetic induction electromotive force, balanced rechargeable electrical energy is provided for respectively the basic battery unit 100 of each series battery 520 corresponding level.When taking the extrapolation AC energy to 500 chargings of series-parallel connection battery pack system, series-parallel connection battery pack system 500 can discharge in charging.
Figure 10 a-10f is the entity structure sketch map of Fig. 9; Wherein Figure 10 a is the entity structure surface sketch map of Fig. 9; Battery pack system 500 is when work of discharging and recharging and needs cooling; The cooling duct of battery pack control management system and electromagnetic transformers rechargeable electrical energy configuration-system 200 is: cooling air sucks battery pack through filtering air inlet 530 and 531, with the internal heat dissipation structures heat exchange after, discharge (not shown) through rear part exhaust mouth 533.Series-connected cell module system cooling duct is: cooling air sucks battery pack through filtering air inlet 532, with the internal heat dissipation structures heat exchange after, discharge (not shown) through rear part exhaust mouth 533.The demonstration of series-parallel connection battery pack system 500 and control system 519 can show parameters such as battery pack operating state, and can inquire about preset and real time information such as battery pack dump energy, cycles left life-span, battery pack temperature, each unit hardware detection conclusion.Figure 10 b, 10c are the entity structure internal feature sketch map of Fig. 9, and electromagnetic transformers rechargeable electrical energy configuration-system 200, each series battery 520 are installed on the battery pack system 500 structure pedestals through structure directing and cooling stand.But each series battery 520 is independent connect-disconnect structure, and each interface inserts series-parallel connection battery pack system 500 through connector.The AC charging electric energy at different levels of multistage bootstrapping secondary winding 224 outputs of electromagnetic transformers 220 are through the basic battery unit 100 of corresponding level of each series battery 520 of connector access.Figure 10 d is the external interface entity structure characteristic sketch map of Fig. 9, and cathode output end of battery pack system 500 501 and zero level end 509 are used for to external load circuit output electric energy, and takes anti-misconnection to take electrode structure to prevent the electrode misconnection.Extrapolation AC energy input interface 504 and 505 is used for the extrapolation alternating current charging and inserts.Outside management and control communication interface 502 is used for and external control management system information interaction, and the total interface system takes screw-threaded coupling device, will insert the connector locking of interface through retaining mechanism 540.Figure 10 e, Figure 10 f are the entity structure sketch map of the series-connected cell module 520 of Fig. 9; Series-connected cell module 520 is assembled into dongle configuration by battery modules and the structure stand that some basic battery units 100 are composed in series; The cathode output end 521 of series-connected cell module 520, zero level end 509, management and control EBI 522, the basic battery unit 100 charging input interface 52n of each level insert series-parallel connection battery pack system 500 through connector.
Adopt the shared electromagnetic transformers rechargeable electrical energy configuration-system 200 of whole series mould set, can simplify the series mould set system, reduce the volume and weight of series mould set.And owing to the theoretical work life-span of electromagnetic transformers rechargeable electrical energy configuration-system 200 is higher than lithium ion battery, thus electromagnetic transformers rechargeable electrical energy configuration-system 200 is shared, help the production and the maintenance of battery pack system.
In sum; Lithium-ion-power cell group system provided by the invention; Balanced charging voltage can be provided to the basic battery unit of each level of series mould set; And the charging voltage that each basic battery unit 100 obtains is equal basically; And can on satisfying the basis of minimum charging voltage, be controlled in the less relatively amplitude range, reduce the rectification of basic battery unit 100 and the operating voltage that the voltage stabilizing circuit device bears thus, thereby reduced the cost of battery pack system; And be the quoting and the compatible adaptive good technical approach that provides of various alternating current-direct current charge power supplies, especially be fit to the lithium-ion-power cell group system of many cells combinations, big capacity, high voltage output.
The above; Be merely preferred embodiment of the present invention; For the person of ordinary skill of the art, can make other various corresponding changes and distortion, and all these changes and distortion all should belong to the protection range of claim of the present invention according to the technical scheme and the technical conceive of this aspect.
Claims (9)
1. the charging method of a lithium-ion-power cell group is characterized in that, comprising:
Step 1 independently discharges and recharges the management and control unit with the access of monomer lithium ion battery, constitutes basic battery unit;
Step 2 with some basic battery unit series connection or series-parallel connection, constitutes battery modules;
Step 3 is provided with electromagnetic transformers rechargeable electrical energy configuration-system, and the multistage bootstrapping secondary winding through electromagnetic transformers is decomposed into the voltage section with the electromagnetic induction electromotive force, balanced charging voltage is provided for respectively the basic battery unit of each level of series-connected cell module;
Step 4; Independently discharge and recharge the networking of management and control unit through battery pack control management system and each basic battery unit; Constitute the inner distributed local control management system of battery pack; Realize the control and management that discharges and recharges of battery pack, and the condition of work that discharges and recharges of all monomer lithium ion batteries is carried out management and control and protection;
In the step 3, said electromagnetic transformers rechargeable electrical energy configuration-system comprises: electromagnetic transformers, dc inversion control system, interchange input control system, electromagnetic induction detection system; Said electromagnetic transformers comprises: soft magnetic material is unshakable in one's determination, winding, secondary winding; Winding of said electromagnetic transformers comprises: winding of dc inversion excitation, direct winding of AC excitation; The secondary winding of said electromagnetic transformers comprises: multistage bootstrapping secondary winding, electromagnetic induction detect secondary winding.
2. the charging method of lithium-ion-power cell group as claimed in claim 1 is characterized in that, in the step 1, said basic battery unit comprises: the monomer lithium ion battery, independently discharge and recharge management and control unit, installation and radiator structure support; The described management and control unit that independently discharges and recharges comprises: unit management and control MCU and peripheral circuit thereof, rectification circuit, charging current and voltage control circuit, charging/discharging voltage and charging current observation circuit, antipole forced electric discharge protective circuit, temperature sensing circuit, series charging level buffer circuit, internal lan interface circuit; Be filled with charge parameter management and control program, quality strategy and database management and control program, networking management and control program in said unit management and control MCU or the memory that connects.
3. the charging method of lithium-ion-power cell group as claimed in claim 1 is characterized in that, said step 2 comprises: with some basic battery unit series connection, constitute the series-connected cell module; With some series-connected cell module parallel connections, constitute the series-parallel connection battery modules.
4. the charging method of lithium-ion-power cell group as claimed in claim 1; It is characterized in that; Said step 3 comprises: step 3.1, and said dc inversion control system is with the different voltage magnitude DC charging electric energy of external circuit submission; Inversion is regulated and control to winding of dc inversion excitation of the AC energy input electromagnetic transformers of design specification, and passes through the detection data adjustment inversion control parameter that the electromagnetic induction detection system is submitted to; Said interchange input control system is with winding of direct AC excitation of the AC energy access electromagnetic transformers of importing; Step 3.2, the multistage bootstrapping secondary winding of said electromagnetic transformers is decomposed into the electromagnetic induction electromotive force and each level correspondent voltage section of series-connected cell module, balanced charging voltage is provided for respectively the basic battery unit of each level of series loop; The electromagnetic induction of said electromagnetic transformers detects secondary winding, submits the electromagnetic induction sense potential sample of electromagnetic transformers system control to for the electromagnetic induction detection system; Respectively the connect basic battery unit of level of step 3.3, said series-connected cell module, the corresponding level winding from the multistage bootstrapping secondary winding of electromagnetic transformers obtains rechargeable electrical energy respectively, and by preset charged management and control program to the monomer lithium ion cell charging; Step 3.4, said series-parallel connection battery modules electromagnetic transformers configuration mode is taked each series-connected cell module electromagnetic transformers pattern of configuration separately, or takes the pattern of the shared electromagnetic transformers of a plurality of series-connected cell modules; Taking each series-connected cell module to dispose under the electromagnetic transformers pattern separately; This series-connected cell module respectively connect level basic battery unit respectively from this series-connected cell module separately the corresponding level winding of the multistage bootstrapping secondary winding of the electromagnetic transformers of configuration obtain rechargeable electrical energy, and by preset charged management and control program to the monomer lithium ion cell charging; Under the pattern of taking the shared electromagnetic transformers of a plurality of series-connected cell modules; The basic battery unit of same level of each series-connected cell module obtains rechargeable electrical energy from the corresponding level winding of the multistage bootstrapping secondary winding of shared electromagnetic transformers jointly, and respectively by the monomer lithium ion cell charging of preset charging management and control program to management and control separately.
5. the charging method of lithium-ion-power cell group as claimed in claim 1; It is characterized in that; Said step 4 comprises: step 4.1; Battery pack control management system and each basic battery unit independently discharge and recharge the networking of management and control unit; Constitute the inner distributed local control management system of battery pack; Said battery pack control management system comprises: central processing unit system, electric current and voltage and temperature-sensing system, power electronics control system, demonstration and control system, external communication interface system are filled with battery set charge/discharge management and control program, system's programming information and basic data library, networking strategy and node management and control program, external call function and management and control program in said central processing unit system or the memory device that connects; Step 4.2; Said battery pack control management system and each basic battery unit independently discharge and recharge the management and control unit; Set up the communication of management and control instruction and data through the battery pack internal lan, realize that with the management and control strategy of default control hypervisor the mode of operation of battery pack being discharged and recharged condition of work with all monomer lithium ion batteries carries out management and control and protection; Step 4.3, said battery pack control management system is set up the communication of management and control instruction and data through external communication interface and outside control-management system, and the external call interface protocol can be SBS, CAN or self-defining interface communication protocol; Described external communication interface can be SBS, CAN or self-defining external data communication interface.
6. lithium-ion-power cell group system that uses the charging method of the described lithium-ion-power cell group of claim 1; It is characterized in that; Said lithium-ion-power cell group system comprises: battery modules, battery pack control management system, electromagnetic transformers rechargeable electrical energy configuration-system, battery pack structure support, housing and heat radiation cooling system that some basic battery unit series connection or series-parallel connection constitute; Said heat radiation cooling system and battery pack control management system are installed on the battery pack structure support; Said battery modules and electromagnetic transformers rechargeable electrical energy configuration-system can be combined as detachable dongle configuration and be installed on the said battery pack structure support; Also can electromagnetic transformers rechargeable electrical energy configuration-system be installed on the said battery pack structure support, battery modules be combined as detachable dongle configuration be installed on the said battery pack structure support.
7. lithium-ion-power cell group system as claimed in claim 6; It is characterized in that; Said basic battery unit comprises: the monomer lithium ion battery, independently discharge and recharge PCB, installation and the radiator structure support that each electronic circuit system of management and control unit is formed, and structurally combine and assemble together, through the locating support and the interface of structural framing; Be installed in the lithium-ion-power cell group; Said monomer lithium ion battery with independently discharge and recharge the management and control unit, structurally can be packaged together, also can separate.
8. lithium-ion-power cell group system as claimed in claim 6; It is characterized in that the AC power of an adaptive input of winding of said direct AC excitation comprises: the alternating current that electric main, industrial power alternating current, all kinds of alternating current generator send, the alternating current that all kinds of electronic system is sent.
9. lithium-ion-power cell group system as claimed in claim 6; It is characterized in that; The configuration mode of the electromagnetic transformers rechargeable electrical energy configuration-system of said lithium-ion-power cell group system; Can take each series mould set electromagnetic transformers rechargeable electrical energy configuration-system of configuration separately, also can take the pattern of the shared electromagnetic transformers rechargeable electrical energy configuration-system of a plurality of series mould set.
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