CN105071492A - Power battery pack equalization system - Google Patents
Power battery pack equalization system Download PDFInfo
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- CN105071492A CN105071492A CN201510536676.7A CN201510536676A CN105071492A CN 105071492 A CN105071492 A CN 105071492A CN 201510536676 A CN201510536676 A CN 201510536676A CN 105071492 A CN105071492 A CN 105071492A
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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 invention discloses a power battery pack equalization system. The power battery pack equalization system comprises: an equalizer for acquiring a first parameter of a power battery pack; an information acquisition device for acquiring a second parameter of the power battery pack; and a control computer which is connected with the equalizer through a first communication bus and is connected with the information acquisition device through a second communication bus for receiving the first parameter and the second parameter, generating an equalization control command according to a preset equalization strategy and controlling the equalizer through the equalization control command to execute equalization processing on the power battery pack. Through the power battery pack equalization system, the problem of quite low bypass equalization efficiency of a power battery pack in the prior art is solved.
Description
Technical field
The present invention relates to power battery pack control field, in particular to a kind of power battery pack equalizing system.
Background technology
Along with the development of electric automobile in urban public transport field using clean energy resource, countries in the world carry out research and development and the application of electric automobile and electrically-charging equipment thereof one after another.In order to meet the actual needs of electric automobile energy storage, electrokinetic cell usually needs serial or parallel connection to use in groups.But in process of production, because the uneven electrokinetic cell initial performance that all can cause of technique, batching and impurity content shows inconsistency, such as, the capacity of electrokinetic cell, internal resistance, charge efficiency and self-discharge characteristics etc.Therefore, in use, the inconsistency between each electrokinetic cell causes the characteristic deteriorate of partial power battery to power battery pack gradually, even affects the charge and discharge process of other electrokinetic cell, causes the degradation of whole power battery pack.For the problem of inconsistency that electric automobile power battery group shows, correlation technique proposes the solution of vehicle-mounted equilibrium, namely utilizes the hardware platform of battery management system, and the bypass carrying out single electrokinetic cell is balanced.But due to vehicle space restriction, the equalizer capacity of most battery management system configuration is less, cause equalization efficiency low, inadequate to the inconsistency portfolio effect of electrokinetic cell each in power battery pack, and vehicle-mounted bypass equilibrium heating is serious, have impact on battery life.
For problem lower to the efficiency of power battery pack bypass equilibrium in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
Main purpose of the present invention is to provide a kind of power battery pack equalizing system, to solve the lower-powered problem to power battery pack bypass equilibrium in correlation technique.
To achieve these goals, according to an aspect of the present invention, a kind of power battery pack equalizing system is provided.This system comprises: equalizer, for gathering the first parameter of power battery pack; Information collecting device, for gathering the second parameter of power battery pack; And computer for controlling, be connected with equalizer by the first communication bus, and be connected with information collecting device by the second communication bus, for receiving the first parameter and the second parameter, generate Balance route order according to default balance policy, and by Balance route order control equalizer, equilibrium treatment is performed to power battery pack.
Further, this system also comprises: charger, is connected to power battery pack, for the charge power supply as power battery pack; And electrokinetic cell is composed in series by multiple electrokinetic cell or is composed in parallel by multiple power battery pack.
Further, computer for controlling comprises: the first communication means, for receiving the first parameter and the second parameter, and sends Balance route order; And controller, for generating Balance route order according to the first parameter and the second parameter according to default balance policy.
Further, computer for controlling also comprises: interaction means, for receiving the configuration information to power battery pack equalizing system.
Further, computer for controlling also for the characteristic according to the first parameter and the second Parameter analysis power battery pack, obtains analysis result, and obtains the state information of power battery pack according to analysis result, sends state information.
Further, computer for controlling also comprises: data processing unit, for according to the first parameter and the second parameter, generates the 3rd parameter according to default processing method; And display unit, for showing the 3rd parameter.
Further, computer for controlling also for generating the 4th parameter according to the first parameter and the second parameter, and stores the 4th parameter.
Further, this system also comprises: report generation equipment, for generating data sheet according to the first parameter and the second parameter; And output equipment, for exporting data sheet.
Further, equalizer comprises: force equalization mechanism, for performing equilibrium to power battery pack; And middle-position machine, perform equilibrium treatment for controlling force equalization mechanism.
Further, force equalization mechanism comprises: judging unit, for judging that according to the operational order of middle-position machine force equalization mechanism performs charging operations or discharge operation; PWM rectifier, during for judging that when judging unit force equalization mechanism performs charging operations, to the power rectifier that charger provides, and when judging unit judges that force equalization mechanism performs discharge operation, to the power inverter that charger provides; And dcdc converter, during for judging that when judging unit force equalization mechanism performs charging operations, to the power voltage step down that charger provides, and when judging unit judges that force equalization mechanism performs discharge operation, to the power boost that charger provides.
Further, equalizer also comprises: the first sampling mechanism, for gathering the first parameter of power battery pack; And second communication means, for connecting force equalization mechanism and middle-position machine, and connect the first sampling mechanism and middle-position machine.
Further, equalizer also comprises: the first administration of power supply, for the power supply as equalizer; Power transfer module, for being converted to the supply power voltage of middle-position machine by the output voltage of the first administration of power supply; And second administration of power supply, first end is connected to power transfer module, and the second end is connected to middle-position machine, for powering to middle-position machine.
Further, the second communication means comprises: the first bus, and first end is connected to power battery pack, and the second end is connected to the first administration of power supply; And second bus, first end is connected to force equalization mechanism, and the second end is connected to the second administration of power supply.
Further, equalizer also comprises: travel mechanism, is arranged on the bottom of equalizer.
Further, information collecting device comprises: the second sampling mechanism, for gathering the second parameter of power battery pack.
By the present invention, gathered the first parameter of power battery pack by equalizer; Information collecting device gathers the second parameter of power battery pack; And computer for controlling receives the first parameter and the second parameter, Balance route order is generated according to default balance policy, and by Balance route order control equalizer, equilibrium treatment is performed to power battery pack, solve problem lower to the efficiency of power battery pack bypass equilibrium in correlation technique, and then reach the effect improving power battery pack equal power.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of power battery pack equalizing system according to a first embodiment of the present invention;
Fig. 2 is the schematic diagram of power battery pack equalizing system according to a second embodiment of the present invention; And
Fig. 3 is the schematic diagram of power battery pack equalizing system according to a third embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The application's scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the embodiment of the application's part, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
It should be noted that, term " first ", " second " etc. in the specification of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged, in the appropriate case so that the embodiment of the application described herein.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
The embodiment provides a kind of power battery pack equalizing system.
Fig. 1 is the schematic diagram of power battery pack equalizing system according to a first embodiment of the present invention.As shown in Figure 1, this system comprises: equalizer 10, information collecting device 20 and computer for controlling 30.
Equalizer 10 is for gathering the first parameter of power battery pack.
Equalizer 10 can gather the performance parameter of power battery pack, such as, and the performance parameter such as terminal voltage, temperature, capacity, internal resistance of power battery pack.
Information collecting device 20 is for gathering the second parameter of power battery pack.
Information collecting device 20 can gather the performance parameter of power battery pack, such as, and the performance parameter such as terminal voltage, temperature, capacity, internal resistance of power battery pack.The second parameter that the first parameter that equalizer 10 gathers and information collecting device 20 gather can be identical parameter, also can be different parameters.
Computer for controlling 30 is connected with equalizer 10 by the first communication bus, and be connected with information collecting device 20 by the second communication bus, for receiving the first parameter and the second parameter, generate Balance route order according to default balance policy, and control equalizer 10 pairs of power battery pack execution equilibrium treatment by Balance route order.
Computer for controlling 30 first end connects equalizer 10, second end by the second communication bus link information collecting device 20 by the first communication bus, and wherein, the first communication bus and the second communication bus can be identical, also can be different.For example, communication bus can use controller local area network (ControllerAreaNetwork is called for short CAN) bus, with reference to CAN2.0B agreement, also industry standard architecture (IndustryStandardArchitecture is called for short ISA) bus can be used.
After computer for controlling 30 receives the first parameter and the second parameter by communication bus, generate Balance route order according to the balance policy preset.This default balance policy can be the balance policy of system default, such as, computer for controlling 30 is after the parameter receiving communication bus, obtain the terminal voltage information of electrokinetic cell, the electrokinetic cell higher to terminal voltage carries out equalizing charge, charged to by balanced electricity in equalizer 10, the electrokinetic cell lower to terminal voltage carries out balanced discharge, by the balanced corona discharge that exists in equalizer 10 in electrokinetic cell; Default balance policy also can be user-defined balance policy, and such as, user can select balancing battery and time for balance, or other balanced relevant configuration.
As can be seen from the above description, this embodiment gathers the first parameter of power battery pack by equalizer 10; Information collecting device 20 gathers the second parameter of power battery pack; And computer for controlling 30 receives the first parameter and the second parameter, Balance route order is generated according to default balance policy, and control equalizer 10 pairs of power battery pack execution equilibrium treatment by Balance route order, solve problem lower to the efficiency of power battery pack bypass equilibrium in correlation technique, control equalizer 10 pairs of power battery pack by computer for controlling 30 and perform equilibrium treatment, achieve the technique effect improving power battery pack equalization efficiency.
Preferably, this system also comprises: charger, is connected to power battery pack, for the charge power supply as power battery pack; And power battery pack is composed in series by multiple electrokinetic cell or is composed in parallel by multiple electrokinetic cell.
Charger is connected to electrical network by feed cable, is can be the power supply of power battery pack charging by the Power convert of electrical network.Charger first end is connected to electrical network; Second end is connected to power battery pack, for power battery pack provides charge power supply.Power battery pack is made up of multiple electrokinetic cell, and building form has the form of series and parallel connections.
Preferably, equalizer 10 also comprises: travel mechanism, is arranged on the bottom of equalizer 10.
In order to improve the portability of equalizer 10, bottom can device travel mechanism, and such as, castor type structure, is convenient to movement and the placement of equalizer 10.
Preferably, this system also comprises: report generation equipment, for generating data sheet according to the first parameter and the second parameter; And output equipment, for exporting data sheet.
After collecting the first parameter and the second parameter, computer for controlling 30 can send Balance route order according to the balance policy preset, and this Balance route order can be that control is to the euqalizing current of electrokinetic cell output or equalizing voltage.After the equalization, data sheet can be formed according to the equalization data of the first parameter and the second parameter and production, this data sheet can indicate parameter information and the balancing procedure of electrokinetic cell, this data sheet can be printed out, for user ID and reference by output equipment.
Fig. 2 is the schematic diagram of power battery pack equalizing system according to a second embodiment of the present invention.This embodiment can as the preferred implementation of above-mentioned first embodiment, and as shown in Figure 2, this system comprises:
Equalizer 10, information collecting device 20, computer for controlling 30, first communication means 301, controller 302, interaction means 303, data processing unit 304 and display unit 305.
The embodiment of equalizer 10, information collecting device 20 and computer for controlling 30 and equalizer in first embodiment of the invention 10, information collecting device 20 are identical with the embodiment of computer for controlling 30, do not repeat them here.
Computer for controlling 30 comprises the first communication means 301, controller 302, interaction means 303, data processing unit 304 and display unit 305.
First communication means 301 for receiving the first parameter and the second parameter, and sends Balance route order.
First communication means 301 may be used for connection control computer 30 and equalizer 10, and connection control computer 30 and information collecting device 20, it is the bindiny mechanism carrying out communication between computer for controlling 30 and miscellaneous equipment, local area network (LAN) (LocalAreaNetwork can be adopted, LAN) bus carries out communication, with reference to network communication (TransmissionControlProtocol/InternetProtocol is called for short TCP/IP) agreement.First communication means can transmit the communication signal between computer for controlling 30 and miscellaneous equipment, the first parameter that such as reception equalizer 10 collects and the second parameter that information collecting device 20 collects, or the Balance route order that transmission computer for controlling 30 generates according to the first parameter received and the second parameter.
Controller 302 is for generating Balance route order according to the first parameter and the second parameter according to default balance policy.
The Balance route order of computer for controlling 30 is generated by controller 302.After computer for controlling 30 receives the first parameter and the second parameter, controller 302 can according to default balance policy judge to power battery pack perform concrete equalization operation, such as equalizing charge and balanced discharge.Default balance policy can be the balance policy of system default, such as, computer for controlling 30 is after receiving the first parameter and the second parameter, the terminal voltage information of electrokinetic cell can be obtained, the electrokinetic cell higher to terminal voltage carries out equalizing charge operation, charged to by balanced electricity in equalizer 10, the electrokinetic cell lower to terminal voltage carries out balanced discharge operation, by the balanced corona discharge that exists in equalizer 10 in electrokinetic cell; Default balance policy also can be user-defined balance policy, and such as, user can select balancing battery and time for balance, or other balanced relevant configuration.After controller 302 generates Balance route order, by the first communication means 301, this Balance route order is sent to equalizer 10.
Interaction means 303 is for receiving the configuration information to power battery pack equalizing system.
Interaction means 303 may be used for receiving user and arranges configuration to system, relation such as between each node, the type of parameter and form, also can operate by managed equilibrium, Balance route step is set, select to need balanced electrokinetic cell and required time for balance, and control the switching on and shutting down of equalizing system.
Data processing unit 304, for according to the first parameter and the second parameter, generates the 3rd parameter according to default processing method.
Default processing method can be the processing method that system pre-sets, according to the result that the first parameter and second calculation of parameter of input go out to need.Such as, information collecting device 20 timing automatic gathers the terminal voltage of electrokinetic cell, and the result gathered is generated terminal voltage-time graph, the time dependent situation of terminal voltage of display electrokinetic cell that can be clear and intuitive by data processing unit 304.Default processing method also can be the processing method that user is arranged, and user can arrange the characteristic curve or parameter format etc. of user's request by interaction means 303.Data processing unit 304 can be the central processing unit of computer for controlling 30.
Display unit 305 is for showing the 3rd parameter.
Display unit 305 can be the display of computer for controlling 30, generates the 3rd parameter, such as terminal voltage-time graph etc. for showing data processing unit 304.
As can be seen from the above description, this embodiment gathers the first parameter of power battery pack by equalizer 10; Information collecting device 20 gathers the second parameter of power battery pack; Computer for controlling 30 receives the first parameter and the second parameter, generates Balance route order according to default balance policy, and controls equalizer 10 pairs of power battery pack execution equilibrium treatment by Balance route order; First communication means 301 receives the first parameter and the second parameter, and sends Balance route order; Controller 302 generates Balance route order according to the first parameter and the second parameter according to default balance policy; Interaction means 303 receives the configuration information to power battery pack equalizing system; Data processing unit 304, according to the first parameter and the second parameter, generates the 3rd parameter according to default processing method; And display unit 305 shows the 3rd parameter, solve problem lower to the efficiency of power battery pack bypass equilibrium in correlation technique, control equalizer 10 pairs of power battery pack by computer for controlling 30 and perform equilibrium treatment, interaction means 303 receives the setting to equalizing system, display unit 305 shows the result presetting processing method, and then improve the efficiency of Balance route, be convenient to user and control and grasp balancing procedure.
Preferably, computer for controlling 30 also for the characteristic according to the first parameter and the second Parameter analysis power battery pack, obtains analysis result, and obtains the state information of power battery pack according to analysis result, sends state information.
After computer for controlling 30 receives the first parameter and the second parameter, the degree of aging of each electrokinetic cell in power battery pack is judged, when judging the electrokinetic cell of still poor performance after equilibrium or being about to the electrokinetic cell of damage, user can be pointed out to change this electrokinetic cell, in order to avoid affect the normal use of whole group of electrokinetic cell, serve warning effect, improve the reliability of power battery pack equilibrium.
Preferably, computer for controlling 30 also for generating the 4th parameter according to the first parameter and the second parameter, and stores the 4th parameter.
Computer for controlling 30 can process the first parameter and the second parameter according to default processing method, and by the result of process, namely the 4th parameter, is stored in computer for controlling 30.This result can the result that obtains of the disposal methods that pre-sets of system, can be the result that the disposal methods arranged according to user obtains, also directly can store the first parameter and the second parameter.For example, each electrokinetic cell can be stored in the terminal voltage not gathering acquisition in the same time, temperature or dump energy (StateofCharge, be called for short SOC) etc. parameter information, also terminal voltage-the time graph of each electrokinetic cell after to collection result process can be stored, or the SOC-voltage curve etc. to each electrokinetic cell after collection result process.
Fig. 3 is the schematic diagram of power battery pack equalizing system according to a third embodiment of the present invention.This embodiment can as the preferred implementation of above-mentioned first embodiment, and as shown in Figure 3, this system comprises:
Equalizer 10, information collecting device 20, computer for controlling 30, force equalization mechanism 101, middle-position machine 102, first sampling mechanism 103 and the second communication means 104.
The embodiment of equalizer 10, information collecting device 20 and computer for controlling 30 and equalizer in first embodiment of the invention 10, information collecting device 20 are identical with the embodiment of computer for controlling 30, do not repeat them here.
Equalizer 10 comprises force equalization mechanism 101, middle-position machine 102, first sampling mechanism 103 and the second communication means 104.
Force equalization mechanism 101 is for performing equilibrium to power battery pack.
Equalizer 10 can comprise one or more force equalization mechanism 101, specifically, the number of the quantity determination force equalization mechanism 101 of the single electrokinetic cell that can comprise according to power battery pack, a force equalization mechanism 101 controls an electrokinetic cell, and each electrokinetic cell is configured with a force equalization mechanism 101.According to the Balance route order that the computer for controlling 30 received sends, force equalization mechanism 101 performs equalization operation to connected electrokinetic cell.For example, when Balance route order be to the single electrokinetic cell be connected with force equalization mechanism 101 perform equalizing charge operate time, control the value of the charging current of this electrokinetic cell according to the value of the euqalizing current in Balance route order.
Middle-position machine 102 performs equilibrium treatment for controlling force equalization mechanism 101.
Middle-position machine 102 may be used for coordinating power battery pack equalizing system to the operation of each force equalization mechanism 101.In power battery pack equalizing system, often there is multiple force equalization mechanism 101, the Balance route instruction that computer for controlling 30 sends is the equalization operation for each electrokinetic cell, after Balance route instruction sends to middle-position machine 102, middle-position machine 102 can be sent in corresponding force equalization mechanism 101 according to the object of this Balance route command operating, the content of this Balance route command operating is sent in force equalization mechanism 101 simultaneously, controls force equalization mechanism 101 and perform corresponding operation.
First sampling mechanism 103 is for gathering the first parameter of power battery pack.
Equalizer 10 can comprise multiple first sampling mechanism 103, each cell arrangement in power battery pack has first sampling mechanism, the performance parameter of this electrokinetic cell can be gathered, such as, the performance parameter such as terminal voltage, temperature, capacity, internal resistance of electrokinetic cell.The sampled result of the first sampling mechanism 103 will send to middle-position machine 102.
Second communication means 104 for connecting force equalization mechanism 101 and middle-position machine 102, and connects the first sampling mechanism 103 and middle-position machine 102.
Second communication means can be bus communication mechanism, also can be serial communication mechanism.For example, second communication means can be controller local area network (ControllerAreaNetwork, be called for short CAN) bus, with reference to CAN2.0B agreement, also industry standard architecture (IndustryStandardArchitecture can be used, be called for short ISA) bus can also be multipoint interface (MultiPointInterface is called for short MPI) serial ports.Second communication means is for transmitting the communication signal between force equalization mechanism 101 and middle-position machine 102, such as, the Balance route instruction that middle-position machine 102 sends to the force equalization mechanism 101 of correspondence, and the performance parameter transmitting the electrokinetic cell that the first sampling mechanism 103 gathers to middle-position machine 102.
As can be seen from the above description, this embodiment gathers the first parameter of power battery pack by equalizer 10; Information collecting device 20 gathers the second parameter of power battery pack; Computer for controlling 30 receives the first parameter and the second parameter, generates Balance route order according to default balance policy, and controls equalizer 10 pairs of power battery pack execution equilibrium treatment by Balance route order; Force equalization mechanism 101 pairs of power battery pack perform equilibrium; Middle-position machine 102 controls force equalization mechanism 101 and performs equilibrium treatment; First sampling mechanism 103 gathers the first parameter of power battery pack; And second communication means 104 connect force equalization mechanism 101 and middle-position machine 102, and connect the first sampling mechanism 103 and middle-position machine 102, solve problem lower to the efficiency of power battery pack bypass equilibrium in correlation technique, control equalizer 10 pairs of power battery pack by computer for controlling 30 and perform equilibrium treatment, middle-position machine 102 controls force equalization mechanism 101 and performs equalization operation to single electrokinetic cell, improves the equalization efficiency of power battery pack.
Preferably, equalizer 10 also comprises: the first administration of power supply, for the power supply as equalizer 10; Power transfer module, for being converted to the supply power voltage of middle-position machine 102 by the output voltage of the first administration of power supply; And second administration of power supply, first end is connected to power transfer module, and the second end is connected to middle-position machine 102, for powering to middle-position machine 102.
The civil power of electrokinetic cell equalizing system access 220V is powered, and electrokinetic cell equalizing system in-line power then can adopt 220V AC power and 5V DC power supply two kinds of modes to power.Wherein, equalizer 10 directly accesses the civil power of 220V, by power transfer module, 220V AC power is converted to 5V DC power supply, and middle-position machine 102 accesses the 5V DC power supply after conversion.220V alternating current is converted to 5V direct current and determines according to China's voltage standard by this power transfer module, also can apply different power transfer module by the voltage standard different according to various countries.
Preferably, force equalization mechanism 101 comprises: judging unit, for judging that according to the operational order of middle-position machine force equalization mechanism performs charging operations or discharge operation; PWM rectifier, during for judging that when judging unit force equalization mechanism performs charging operations, to the power rectifier that charger provides, and when judging unit judges that force equalization mechanism performs discharge operation, to the power inverter that charger provides; And dcdc converter, during for judging that when judging unit force equalization mechanism performs charging operations, to the power voltage step down that charger provides, and when judging unit judges that force equalization mechanism performs discharge operation, to the power boost that charger provides.
Pulse width modulation (PulseWidthModulation is called for short PWM) rectifier can realize energy and flow to positive and negative both direction, Switching Power Supply (DirectCurrentDirectCurrent is called for short DCDC) converter.When judging unit judges that the order that force equalization mechanism 101 receives is equalizing charge operation, PWM rectifier is responsible for carrying out rectification, and dcdc converter works in decompression mode, for electrokinetic cell provides galvanic current to compress into row charging.When judging unit judges that the order that force equalization mechanism 101 receives is balanced discharge operation, PWM rectifier is responsible for inversion, and electric discharge dcdc converter works in boost mode, and the energy back of being discharged by electrokinetic cell is to charger.Wherein, the DC side circuit of PWM rectifier adopts DC filter capacitor to carry out DC energy storage, and the energy storage of electrokinetic cell electric discharge is in this electric capacity.
For example, in force equalization mechanism 101, PWM rectifier adopts boost configuration, has rectification and inversion dual-use function.The grid side of PWM rectifier is AC, can series reactor and inductance, and DC side can series direct current filter capacitor, is the full-controlled rectifier bridge of insulated gate bipolar transistor composition between grid side and DC side.PWM rectifier can adopt the control of Digital Signal Processing (DigitalSignalProcessing the is called for short DSP) digital device of Freescale company.
Preferably, the second communication means 104 comprises: the first bus, and first end is connected to power battery pack, and the second end is connected to the first administration of power supply; And second bus, first end is connected to force equalization mechanism 101, and the second end is connected to the second administration of power supply.
First administration of power supply can be mains-supplied power supply, and also can be through charger by the power supply after electric network source conversion, power supply is connected to power battery pack by the first bus, and connection charge power supply and electrokinetic cell charge.Second administration of power supply can be through the direct-flow voltage regulation source of power transfer module conversion, by the second bus for force equalization mechanism 101 provides power supply.
Preferably, information collecting device 20 comprises: the second sampling mechanism, for gathering the second parameter of power battery pack.
Information collecting device 20 can comprise multiple second sampling mechanism, each cell arrangement in power battery pack has second sampling mechanism, the performance parameter of this electrokinetic cell can be gathered, such as, the performance parameter such as terminal voltage, temperature, capacity, internal resistance of electrokinetic cell.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a power battery pack equalizing system, is characterized in that, comprising:
Equalizer, for gathering the first parameter of described power battery pack;
Information collecting device, for gathering the second parameter of described power battery pack; And
Computer for controlling, be connected with described equalizer by the first communication bus, and be connected with described information collecting device by the second communication bus, for receiving described first parameter and described second parameter, generate Balance route order according to default balance policy, and control described equalizer to described power battery pack execution equilibrium treatment by described Balance route order.
2. system according to claim 1, is characterized in that, described system also comprises:
Charger, is connected to described power battery pack, for the charge power supply as described power battery pack; And
Described power battery pack is composed in series by multiple electrokinetic cell or is composed in parallel by multiple electrokinetic cell.
3. system according to claim 3, is characterized in that, described computer for controlling comprises:
First communication means, for receiving described first parameter and described second parameter, and sends described Balance route order; And
Controller, for generating described Balance route order according to described first parameter and described second parameter according to described default balance policy.
4. system according to claim 3, is characterized in that, described computer for controlling also comprises:
Interaction means, for receiving the configuration information to described power battery pack equalizing system.
5. system according to claim 3, it is characterized in that, described computer for controlling is also for the characteristic of power battery pack according to described first parameter and described second Parameter analysis, obtain analysis result, and the state information of described power battery pack is obtained according to described analysis result, send described state information.
6. system according to claim 3, is characterized in that, described computer for controlling also comprises:
Data processing unit, for according to described first parameter and described second parameter, generates the 3rd parameter according to default processing method; And
Display unit, for showing described 3rd parameter.
7. system according to claim 3, is characterized in that, described computer for controlling is used for generating the 4th parameter according to described first parameter and described second parameter, and stores described 4th parameter.
8. system according to claim 3, is characterized in that, described system also comprises:
Report generation equipment, for generating data sheet according to described first parameter and described second parameter; And
Output equipment, for exporting described data sheet.
9. system according to claim 1, is characterized in that, described equalizer comprises:
Force equalization mechanism, for performing equilibrium to described power battery pack; And
Middle-position machine, performs equilibrium treatment for controlling described force equalization mechanism.
10. system according to claim 9, is characterized in that, described force equalization mechanism comprises:
Judging unit, for judging that according to the operational order of described middle-position machine described force equalization mechanism performs charging operations or discharge operation;
Single-phase PWM Rectifier, during for judging that when described judging unit described force equalization mechanism performs charging operations, to the power rectifier that described charger provides, and when described judging unit judges that described force equalization mechanism performs discharge operation, to the power inverter that described charger provides; And
Dcdc converter, during for judging that when described judging unit described force equalization mechanism performs charging operations, to the power voltage step down that described charger provides, and when described judging unit judges that described force equalization mechanism performs discharge operation, to the power boost that described charger provides.
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| CN201510536676.7A CN105071492B (en) | 2015-08-27 | 2015-08-27 | Power battery pack equalizing system |
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| CN201510536676.7A CN105071492B (en) | 2015-08-27 | 2015-08-27 | Power battery pack equalizing system |
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| CN201510536676.7A Active CN105071492B (en) | 2015-08-27 | 2015-08-27 | Power battery pack equalizing system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020118556A1 (en) * | 1999-08-13 | 2002-08-29 | Johnson Robert W. | Power converters with ac and dc operating modes and methods of operation thereof |
| WO2005101634A1 (en) * | 2004-03-24 | 2005-10-27 | Eaton Power Quality Corporation | Power conversion apparatus with dc bus precharge circuits and methods of operation thereof |
| CN102810895A (en) * | 2012-08-28 | 2012-12-05 | 哈尔滨工业大学 | Circuit and method for balancing electric quantity of storage battery pack |
| CN103427459A (en) * | 2013-07-29 | 2013-12-04 | 清华大学 | Battery pack capacity equilibrium method |
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2015
- 2015-08-27 CN CN201510536676.7A patent/CN105071492B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020118556A1 (en) * | 1999-08-13 | 2002-08-29 | Johnson Robert W. | Power converters with ac and dc operating modes and methods of operation thereof |
| WO2005101634A1 (en) * | 2004-03-24 | 2005-10-27 | Eaton Power Quality Corporation | Power conversion apparatus with dc bus precharge circuits and methods of operation thereof |
| CN102810895A (en) * | 2012-08-28 | 2012-12-05 | 哈尔滨工业大学 | Circuit and method for balancing electric quantity of storage battery pack |
| CN103427459A (en) * | 2013-07-29 | 2013-12-04 | 清华大学 | Battery pack capacity equilibrium method |
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| CN105071492B (en) | 2017-12-15 |
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