CN203481854U - Battery management device, power system and energy storage power station - Google Patents
Battery management device, power system and energy storage power station Download PDFInfo
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- CN203481854U CN203481854U CN201320459869.3U CN201320459869U CN203481854U CN 203481854 U CN203481854 U CN 203481854U CN 201320459869 U CN201320459869 U CN 201320459869U CN 203481854 U CN203481854 U CN 203481854U
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Abstract
The utility model provides a battery management device, a power system and an energy storage power station. The battery management device comprises a master control module, and a battery detection module, an equalization module and a plurality of mode selection modules which are all connected with the master control module, wherein the battery detection module is used for detecting operating states of batteries in a battery pack, and the operating states include energy of every battery; each mode selection module is used for connecting some battery in the battery pack with an outside electrical part; the equalization module is used for controlling batteries, which are required for energy equalization, in the battery pack to discharge according to the detected operating states of the batteries, and the batteries which are required for energy equalization are those batteries, which have energy larger than that of a battery having the least energy in the battery pack, in the battery pack; and the master control module is used for controlling the above modules to operate according to the detected operating states of the batteries. The battery management device, the power system and the energy storage power station are capable of equalizing energy of the battery pack effectively and making the battery pack as an emergency power supply.
Description
Technical field
The utility model relates to a kind of management devices, relates in particular to a kind of cell managing device, power-supply system and energy-accumulating power station.
Background technology
Electric motor cars etc. be take the power supply that equipment that power supply is kinetic energy uses and conventionally by a plurality of power brick (also referred to as battery pack), are formed, for example, the power supply being formed by 5 Battery pack groups, wherein in 4 groups every group by 24 batteries series connection, formed, another group is in series by 18 batteries, altogether forms the power supply being in series by 114 batteries.When electric motor car is worked, described 114 batteries discharge simultaneously, and to provide electric motor car work required electric energy, when electric motor car charges, these 114 batteries charge simultaneously, with energy reserve.But along with the use of electric motor car, these 114 batteries can engender charging and/or the inhomogeneous situation of discharging.This will directly cause some battery to be restarted in overcharging or excessively putting state, thereby reduce the useful life of these batteries, and then the useful life of 114 batteries is inhomogeneous.In battery pack, if having any one battery premature termination life-span in 24 or 18 batteries in a group, this Battery pack needs whole group of replacement, so that the useful life of having reduced whole Battery pack.
So the power brick that power brick in prior art, especially secondary cell form there will be the energy of part battery unbalanced so that affect the situation of the use of whole power supply.Yet along with the development of energy crisis, secondary cell has obtained application more and more widely.Secondary cell for example lithium battery has many advantages, but it still exists some shortcomings.For example, stored energy is few, the performance complexity of connection in series-parallel use, battery electric quantity calculation difficult to estimate, battery etc.So secondary cell needs battery management system (BMS, BATTERY MANAGEMENT SYSTEM) to support the use conventionally, to monitor preferably and to manage battery.BMS can be in battery charge and discharge process, and the parameters such as the terminal voltage of every battery in Real-time Collection battery pack and temperature, charging and discharging currents and power brick total voltage, to prevent the phenomenons such as battery overcharges or excessively put.BMS can provide battery condition in time simultaneously, picks out problematic battery, to keep whole Battery pack reliability of operation and high efficiency.But, in prior art, lack and can carry out fast equilibrium to the energy between power brick, to improve the battery management system in the useful life of the power supply that power brick forms.
Be understandable that, the statement of this part only provides the background information relevant to the utility model, may form or not form so-called prior art.
Summary of the invention
Technical problem to be solved in the utility model is defect unbalanced for the energy content of battery in power brick in prior art so that its life-span is shorter, provide a kind of can the balancing battery bag of automatic quick in each battery energy and can make power brick as the cell managing device of stand-by power supply.
The utility model solves the technical scheme that its technical problem adopts and is to provide a kind of cell managing device, and it comprises: main control module and the battery detecting module being all connected with main control module, balance module and several mode selection modules; Battery detecting module, for detection of the operating state of each battery in this power brick, described operating state comprises the energy of each battery; Several mode selection modules, the quantity of mode selection module is identical with number of batteries in this power brick, and each mode selection module is for connecting certain battery of power brick and extraneous electricity consumption device so that this battery can externally discharge electric energy; Balance module, for needing the battery of balancing energy to discharge to external world according to this power brick of working state control of the described battery detecting, so that the energy coincidence of each battery in this power brick, the described battery that needs balancing energy refers to the high battery of energy of the battery minimum than power brick self-energy existing in power brick; Main control module, for judging that according to the operating state of the described battery detecting which battery needs balancing energy, the work of controlling above-mentioned each module is balanced and mutual with external information to realize the energy content of battery.
In above-mentioned cell managing device, described balance module comprises: DC/DC transducer, for the transfer of the energy between this power brick and extraneous electricity consumption device; Balance controller, receives the instruction of main control module and according to the instruction of described main control module, controls the work of DC/DC transducer.
In above-mentioned cell managing device, described balance module also comprises equilibrium state collecting unit, for gathering the operating state of DC/DC transducer and the operating state of DC/DC transducer being fed back to balance controller.
In above-mentioned cell managing device, each mode selection module comprises diode parallel with one another and switch.
In above-mentioned cell managing device, described switch is relay.
In above-mentioned cell managing device, the operating state of described battery comprises the operating voltage of battery, operating current and working temperature.
In above-mentioned cell managing device, the operating state of described battery comprises the operating voltage of battery, operating current and working temperature.
In above-mentioned cell managing device, also comprise that described display is electrically connected to described main control module for showing the display of the operating state of power brick.
In above-mentioned cell managing device, also comprise that described display is electrically connected to described main control module for showing the display of the operating state of battery.
In order better to solve the problems of the technologies described above, the utility model also provides a kind of power-supply system, it comprises: the power brick of several series connection, several identical central controllers of energy for managing the cell managing device of power brick and making several each batteries of power brick for controlling described several cell managing devices and control, each power brick is electrically connected to central controller by bus after being electrically connected to a cell managing device, and in power-supply system, cell managing device is any one in above-mentioned cell managing device.
In order better to solve the problems of the technologies described above, the utility model also provides a kind of energy-accumulating power station, and it mainly comprises: power-supply system, while are electrically connected to that with described power-supply system and electrical network the power distribution of power-supply system or electrical network output is processed to the distribution box to load; Described power-supply system comprises: the power brick of several series connection, several identical central controllers of energy for managing the cell managing device of power brick and making several each batteries of power brick for controlling described several cell managing devices and control, each power brick is electrically connected to central controller by bus after being electrically connected to a cell managing device, and in energy-accumulating power station, cell managing device is any one in above-mentioned cell managing device.
The cell managing device that the utility model provides mainly detects the operating state of each battery by battery detecting module, by main control module, in conjunction with above-mentioned operating state, judge which battery and need balancing energy, and control model selects module to need the battery of balancing energy to connect with extraneous, and then the battery electricity consumption device electric discharge to external world that balance module makes to need balancing energy is controlled in combination, therefore its can automatically effectively make battery in this power brick to external world electricity consumption device discharge to realize the equilibrium of energy between power brick, it can improve consistency and the useful life of the whole power supply of power brick formation.And it is by discharging the higher battery of energy to external world and make power brick can be used as stand-by power supply.
Accompanying drawing explanation
Fig. 1 is the structural representation that cell managing device that the utility model provides is connected with power brick;
Fig. 2 is the structural representation of the balance module that provides of the utility model;
Fig. 3 is the structural representation of mode selection module in the embodiment that provides of the utility model;
Fig. 4 is the theory diagram that in the embodiment that provides of the utility model, power-supply system is applied to load;
Fig. 5 is the structural representation that in the embodiment that provides of the utility model, energy-accumulating power station is connected with load;
Fig. 6 is that in the embodiment that provides of the utility model, the energy content of battery flows to schematic diagram.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
The cell managing device that the utility model provides, it mainly can make to realize between power brick balancing energy by balance module, several mode selection modules and main control module.
Referring to shown in Fig. 1 to Fig. 6, the utility model provides a kind of cell managing device, and it is mainly used in managing power brick.Cell managing device mainly comprises: battery detecting module 1, balance module 4, several mode selection modules 3 and main control module 2, main control module is electrically connected to control the work of a module simultaneously with battery detecting module, balance module and several mode selection modules.Wherein, battery detecting module 1 is connected with power brick, for detecting the operating state of each battery in the power brick being connected with cell managing device, the operating state of battery comprises the energy of each battery, such as the running parameters such as operating voltage, operating current and working temperature that detect battery.Balance module 4 under the control of main control module 2 by the battery that needs balancing energy in the power brick being connected with cell managing device (being this power brick) to external world electricity consumption device discharge so that the balancing energy of each battery is consistent in power brick.Concrete, power brick does not reach each energy content of battery when identical, makes the energy coincidence of the battery of minimum energy in the energy of all batteries in power brick and power brick.Need the battery of balancing energy to refer to the high battery of energy of the battery minimum than power brick self-energy existing in power brick.The corresponding mode selection module 3 of each battery in power brick, therefore the quantity of mode selection module 3 is identical with number of batteries in this power brick.Under the control of main control module 2, whether mode selection module 3 selects certain battery and extraneous electricity consumption device to connect, when mode selection module 3 is by after certain battery and the connection of extraneous electricity consumption device, certain battery can be given extraneous electricity consumption device electric discharge (also to extraneous electricity consumption device power supply) by balance module 4, simultaneously, certain battery discharges to a certain extent under the control of main control module and balance module, be discharged to power brick in the energy coincidence of battery of minimum energy, and then can realize all single battery balancing energies.Which battery main control module 2 for judging and need balancing energy and to control the work of cell managing device modules and control and external information mutual according to the operating state of the described battery detecting.So after main control module 2 is connected according to the working state control mode selection module 3 of each battery, main control module 2 is controlled balance module 4 again makes several need the battery of balancing energy to release energy to the external world.
The mode that between power brick, energy shifts has multiple.The utility model mainly carries out the transfer of energy by power brick and extraneous electricity consumption device.What deserves to be explained is, whether the energy that judges battery is balanced, can realize by voltage or other parameter of judgement battery, but, this area judges that by whether the electric weight on battery is identical whether the energy content of battery is balanced conventionally, and, between the parameters such as electric weight, voltage, by calculating, can mutually change and draw.In addition, although the electric weight on battery is along with the change of operating time can change, but in the short time, on each battery, the variable quantity of electric weight is consistent, so, can be accurately that each is battery balanced to the consistent situation of electric weight with the difference (and each battery reaches the required electric weight Q of average electricity) of average electricity by calculating each battery of a certain moment.
In preferred embodiment of the present utility model, balance module 4 comprises DC/DC transducer and balance controller, and DC/DC transducer 41, for needing this power brick the energy of the battery of balancing energy to be transferred to extraneous electricity consumption device.Generally, a termination power brick of DC/DC transducer, other one end of DC/DC transducer connects load by mode selection module; Balance controller 42, receives the instruction of main control module 2 and according to the work of the instruction control DC/DC transducer of described main control module 2, balance controller is electrically connected to main control module and DC/DC transducer simultaneously.Because mode selection module 3 is by after connecting between certain battery and extraneous electricity consumption device, the energy that balance module 4 can effectively be controlled this battery automatically by DC/DC transducer shifts to extraneous electrical appliance part.Concrete, DC/DC transducer 41 is mainly realized voltage transitions and isolation, to realize the transfer of energy.DC/DC transducer is well known to those skilled in the art, therefore its concrete structure does not repeat them here.Balance controller 42 is controlled the conversion regime of DC/DC transducer under the control of main control module 2, for example, controls it and boosts or step-down, and boost or time of step-down.
Because each parts in cell managing device inevitably can be subject to external influence, for example, the running parameter of DC/DC transducer self also can change along with interference such as its aging or extraneous electromagnetism.So preferably, balance module 4 also comprises the equilibrium state collecting unit 43 being electrically connected to described balance controller and DC/DC transducer simultaneously, for gathering the operating state of DC/DC transducer and the operating state of DC/DC transducer being fed back to balance controller 42.So balance controller 42 is in conjunction with the working method of the in good time adjustment DC/DC transducer of the operating state of the instruction of main control module 2 and the DC/DC transducer of feedback.For example, equilibrium state collecting unit 43 gathers after the work state informations such as operating voltage, operating current and operating time of DC/DC transducer, operating voltage and pressure rising time when the adaptive change of balance controller 42 DC/DC transducer boosts, and then the speed of change DC/DC transducer two ends electric discharge etc.Like this, can make to need to carry out more quickly and accurately energy transfer between the battery of balancing energy and extraneous electricity consumption device, and then realize cell between power brick and can realize fast automatically equilibrium.
In preferred embodiment of the present utility model, each mode selection module 3 comprises diode parallel with one another and switch.Like this, after described certain battery and the connection of extraneous electricity consumption device, can avoid a plurality of power supplys mutually to have backflow.For example, when certain energy content of battery is higher, main control module 2 makes diode current flow in mode selection module 3, described certain battery electricity consumption device electric discharge to external world.When certain energy content of battery is on the low side, main control module 2 makes switch in mode selection module 3 disconnect (diode need to reach its threshold voltage ability conducting), now, diode, in cut-off state, can avoid the power supply that outside energy is higher described certain battery is charged or avoid outer bound pair cell managing device to produce and disturb.So what mode selection module 3 made by diode in parallel and switch that connected battery can safety carries out energy transfer with the external world, it can effectively reduce and refluxes and negative effect that mixed flow is brought.Described switch is generally automatically controlled, and it can be relay or metal-oxide-semiconductor or IGBT pipe.Preferably, switch is relay, and its cost is lower, and the life-span is longer.Further preferably, cell managing device also comprises that, for showing the display of the operating state of power brick, display is electrically connected to described main control module 2.Display can show the operating state of each battery in power brick, understands at any time the working condition of each battery for user, and then can safeguard in time.
The cell managing device that the utility model provides can be widely used on the various batteries that need to manage, for example lithium battery.The utility model also provides a kind of power-supply system, it comprises: the power brick of several series connection, several identical central controllers of energy for managing the cell managing device of power brick and making several each batteries of power brick for controlling described several cell managing devices and control, each power brick is electrically connected to central controller by bus after being electrically connected to a cell managing device, in power-supply system cell managing device be in above-mentioned cell managing device any one.It passes through cell managing device of each power brick corresponding configuration the power-supply system that the utility model provides, and by each cell managing device of central controller management coordination.Concrete, the cell managing device that central controller controls is all, meanwhile, central controller is controlled each cell managing device according to the state of each power brick and cell managing device feedack, and then makes the energy of batteries all in several power brick all identical.
The power-supply system that the utility model provides can realize the equal balancing energy of all batteries, and then improves consistency and the useful life of power-supply system.The operation principle of the power-supply system that the utility model provides and step are described below in conjunction with an embodiment, and it mainly comprises the following steps:
S10, each cell managing device detect the electric weight of each battery in connected power brick and described electric weight are fed back to central controller; Cell managing device is used for managing connected power brick, the long-term operating state that detects each battery in connected power brick of battery detecting module in cell managing device, for balancing battery, each cell managing device detects the electric weight of each battery in connected power brick and electric weight is fed back to central controller.
Whether S20, central controller judge power-supply system according to the electric weight of each battery of feedback needs to carry out battery balanced, if so, performs step S30, if not, returns to step S10;
S30, central controller judge which battery needs equilibrium according to the electric weight of each battery of feedback and each battery reaches the required electric weight Q of average electricity (reaching balanced); Concrete, central controller (BECU) is judged the minimum energy of which battery, take this minimum energy as the required target energy reaching of each battery, and BECU calculates the electric weight Q of required release while needing the battery of balancing energy to reach target energy (being balanced energy).
S40, central controller send balanced instruction to main control module in the cell managing device that needs balanced power brick to connect, in the power brick that main control module connects it according to balanced instruction, need balanced battery to carry out equilibrium treatment, central controller is assigned instruction need to carry out the balanced mode that also need to change how many electric weight and change electric weight to which battery in power brick to main control module.In the power brick that main control module connects it according to balanced instruction, need mode selection module and bus that balanced battery connects to connect, and main control module is controlled according to above-mentioned balanced instruction the balance module being connected with this main control module and is emitted electric weight Q by bus, and then can be by the electric energy transfer of this release to extraneous electricity consumption device, thereby can make power brick as stand-by power supply.Main control module can be controlled several mode selection modules turn-on bus or turn-on bus together successively, and power brick is first discharged to bus successively.Be in battery, to need balanced electric weight to be pooled to bus place to redistribute to extraneous electricity consumption device.
Preferably, while carrying out equilibrium treatment in step S40, also comprise operating voltage, operating current and operating time while gathering charge or discharge in described balance module, balance module regulates the mode of self charge or discharge according to the instruction of the described operating voltage, operating current and the operating time that gather and central controller.For example, in cell managing device, equilibrium state collecting unit gathers after the work state informations such as operating voltage, operating current and operating time of DC/DC transducer, operating voltage and pressure rising time when the adaptive change of balance controller DC/DC transducer boosts, and then the working method of change DC/DC transducer.Like this, can make to carry out more quickly and accurately between battery energy transfer and equilibrium.More preferably, while carrying out equilibrium treatment in step S40, also comprise by display the operating state of each battery is shown, job informations such as the operating voltage of DC/DC transducer in the cell managing device that the electric weight of each battery, temperature, charging/discharging voltage, this battery are connected, operating time, working temperature shows, and then is more conducive to user and understands power supply situation and safeguard in time.
Referring again to Fig. 4 and the power-supply system that the utility model is provided embodiment illustrated in fig. 6 and equalization methods thereof is described as follows:
In this embodiment, each power brick is connected with bus after connecting a cell managing device (being BMU), and bus connection central controller, and for example this power-supply system comprises the power brick of three series connection.Each power brick comprises the battery (battery in power brick can be serial or parallel connection or both mixing) of four series connection, and each cell managing device comprises four mode selection modules, a battery detecting module, a balance module and a main control module.Each balance module comprises a DC/DC transducer, be connected in balance controller between DC/DC transducer and main control module, be connected in the equilibrium state collecting unit between DC/DC transducer and balance controller.Each mode selection module one end connects a battery, and its other end connects DC/DC transducer in balance module, and by DC/DC transducer, this battery is carried out the transfer of energy, and mode selection module is electrically connected to main control module to be controlled by main control module simultaneously.
Battery detecting module in each BMU detects the operating state (comprising the electric weight on each battery) of each battery in the power brick being electrically connected to this BMU and by bus, sends operating state to central controller (be BECU, BECU also can be used for power-supply system and upper level carries out information interaction).For example, BECU calculates and judges first battery in the first power brick and also needs electric weight-20 coulomb (this battery need to discharge 20 coulombs) from 100 coulombs of average electricities, and the 3rd power brick is all in 100 coulombs of average electricities (not needing by balanced battery).Therefore, BECU assigns instruction and carries out balancing energy to first power brick.The BMU that the first power brick connects controls according to instruction the mode selection module connection that first battery in it connects, for example make diode current flow in mode selection module (and switch is in off-state), this battery carries out energy transfer to bus to external world, and in balance module, balance controller carries out electric weight transfer to this battery according to instruction control DC/DC transducer within 10S, by DC/DC transducer, makes this battery discharge to bus within 10S.Therefore, the energy coincidence of battery in three power brick after 10S, thus realized the equilibrium of the energy of all batteries.Wherein, the power section that two-way DC transducer is balance module, realizes the charge and discharge maintenance to battery.Input and output voltage and the electric current of equilibrium state collecting unit monitoring bidirectional DC transducer, so that the data of system equalization strategy to be provided, and then balance controller can realize the requirement with adaptive system to the switching of two-way DC transducer mode of operation, for example, can control conversion speed, direction and the power of two-way DC transducer.And mode selection module makes charging and electric discharge between battery be realized and can be prevented the backflow that battery is mutual by different branch roads by the parallel connection of switch and diode.Meanwhile, the energy that this power-supply system can discharge power brick to external world electricity consumption device (for example load) is powered, and then can be used as stand-by power supply, also can conserve energy.
The utility model also provides a kind of energy-accumulating power station, and it comprises: power-supply system, while are electrically connected to that with described power-supply system and electrical network the power distribution of power-supply system or electrical network output is processed to the distribution box to load; Described power-supply system comprises: the power brick of several series connection, several identical central controllers of energy for managing the cell managing device of power brick and making several each batteries of power brick for controlling described several cell managing devices and control, each power brick is electrically connected to central controller by bus after being electrically connected to a cell managing device, and in energy-accumulating power station, cell managing device is any one in described cell managing device.Energy-storage system in embodiment shown in Figure 5, it can provide two parts of power supply powering loads by electrical network and power-supply system, when electrical network breaks down, power-supply system can be used as stand-by power supply (its can replace in prior art use UPS) powering load.So the energy-accumulating power station that the utility model provides makes the powering load of energy-accumulating power station energy continuously effective when can save UPS, meanwhile, this energy-accumulating power station can carry out balancing energy automatically fast by the power brick in it.
The power-supply system that the utility model provides can be widely used in the various equipment that needs electric supply installation, for example, and in the various devices such as the energy-storage system of electrical network and distribution box, electric motor car.In a word, the cell managing device that the utility model provides, power-supply system and energy-accumulating power station can effectively be managed power brick, making several power brick realize energy shifts, and then realize the balancing energy of several power brick, and then consistency and the useful life of improving the whole power supply of power brick formation, and be convenient to power brick to safeguard.And it can realize battery balanced automatically fast, meanwhile, be convenient to user and understand the residing state of power supply and be convenient to user and in time battery is safeguarded.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a cell managing device, for managing the power brick with several batteries, is characterized in that, comprising: main control module and the battery detecting module being all connected with main control module, balance module and several mode selection modules;
Battery detecting module, for detection of the operating state of each battery in this power brick, described operating state comprises the energy of each battery;
The mode selection module that several are connected with balance module simultaneously, the quantity of mode selection module is identical with number of batteries in this power brick, and each mode selection module is for connecting certain battery of power brick and extraneous electricity consumption device so that this battery can externally discharge electric energy;
Balance module, for needing the battery of balancing energy to discharge to external world according to this power brick of working state control of the described battery detecting, so that the energy coincidence of each battery in this power brick, the described battery that needs balancing energy refers to the high battery of energy of the battery minimum than power brick self-energy existing in power brick;
Main control module, for judging that according to the operating state of the described battery detecting which battery needs balancing energy, the work of controlling above-mentioned each module is balanced and mutual with external information to realize the energy content of battery.
2. cell managing device as claimed in claim 1, is characterized in that, described balance module comprises:
DC/DC transducer, for needing this power brick the energy of the battery of balancing energy to be transferred to extraneous electricity consumption device; And
The balance controller being simultaneously electrically connected to described main control module and DC/DC transducer, receives the instruction of main control module and according to the work of the instruction control DC/DC transducer of described main control module.
3. cell managing device as claimed in claim 2, it is characterized in that, described balance module also comprises the equilibrium state collecting unit being electrically connected to described balance controller and DC/DC transducer simultaneously, for gathering the operating state of DC/DC transducer and the operating state of DC/DC transducer being fed back to balance controller.
4. cell managing device as claimed in claim 1, is characterized in that, each mode selection module comprises diode parallel with one another and switch.
5. cell managing device as claimed in claim 4, is characterized in that, described switch is relay.
6. cell managing device as claimed in claim 1, is characterized in that, the operating state of described battery also comprises operating voltage, operating current and the working temperature of battery.
7. cell managing device as claimed in claim 3, is characterized in that, the operating state of described DC/DC transducer comprises operating voltage, operating current and the operating time of DC/DC transducer.
8. cell managing device as claimed in claim 1, is characterized in that, also comprises that described display is electrically connected to described main control module for showing the display of the operating state of battery.
9. a power-supply system, it is characterized in that, comprise: the power brick of several series connection, several identical central controllers of energy for managing the cell managing device of power brick and making several each batteries of power brick for controlling described several cell managing devices and control, each power brick is electrically connected to central controller by bus after being electrically connected to a cell managing device, and described cell managing device is any one in claim 1-8.
10. an energy-accumulating power station, is characterized in that, comprising: power-supply system, while are electrically connected to that with described power-supply system and electrical network the power distribution of power-supply system or electrical network output is processed to the distribution box to load; Described power-supply system comprises: the power brick of several series connection, several identical central controllers of energy for managing the cell managing device of power brick and making several each batteries of power brick for controlling described several cell managing devices and control, each power brick is electrically connected to central controller by bus after being electrically connected to a cell managing device, and described cell managing device is any one in claim 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320459869.3U CN203481854U (en) | 2013-07-31 | 2013-07-31 | Battery management device, power system and energy storage power station |
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| CN201320459869.3U CN203481854U (en) | 2013-07-31 | 2013-07-31 | Battery management device, power system and energy storage power station |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105471005A (en) * | 2014-08-29 | 2016-04-06 | 比亚迪股份有限公司 | Battery management device, power supply system and battery equalization method |
| CN105891716A (en) * | 2014-12-15 | 2016-08-24 | 广西大学 | Battery characteristic parameter testing device |
| CN110140057A (en) * | 2017-01-03 | 2019-08-16 | 三星Sdi株式会社 | Voltage detecting integrated circuit and battery management system including it |
| CN115877254A (en) * | 2023-03-03 | 2023-03-31 | 樊氏科技发展股份有限公司 | UPS running state online self-checking system |
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2013
- 2013-07-31 CN CN201320459869.3U patent/CN203481854U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471005A (en) * | 2014-08-29 | 2016-04-06 | 比亚迪股份有限公司 | Battery management device, power supply system and battery equalization method |
| CN105471005B (en) * | 2014-08-29 | 2018-12-21 | 比亚迪股份有限公司 | A kind of cell managing device, power-supply system and battery balanced method |
| CN105891716A (en) * | 2014-12-15 | 2016-08-24 | 广西大学 | Battery characteristic parameter testing device |
| CN110140057A (en) * | 2017-01-03 | 2019-08-16 | 三星Sdi株式会社 | Voltage detecting integrated circuit and battery management system including it |
| CN110140057B (en) * | 2017-01-03 | 2021-07-13 | 三星Sdi株式会社 | Voltage detection integrated circuit and battery management system including the same |
| US11327122B2 (en) | 2017-01-03 | 2022-05-10 | Samsung Sdi Co., Ltd. | Voltage detection integrated circuit and battery management system comprising same |
| CN115877254A (en) * | 2023-03-03 | 2023-03-31 | 樊氏科技发展股份有限公司 | UPS running state online self-checking system |
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