CN104701943A - Battery system, battery unit group and battery control system as well as battery control method - Google Patents
Battery system, battery unit group and battery control system as well as battery control method Download PDFInfo
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- CN104701943A CN104701943A CN201510104755.0A CN201510104755A CN104701943A CN 104701943 A CN104701943 A CN 104701943A CN 201510104755 A CN201510104755 A CN 201510104755A CN 104701943 A CN104701943 A CN 104701943A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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Abstract
The invention discloses a battery system, a battery unit group and a battery control system as well as a battery control method. The battery system comprises the battery unit group and the battery control system; the battery unit group comprises a plurality of battery units connected in series; the battery unit comprises an output control unit and a cell group; the output control unit is connected between the anode and the cathode of the battery unit and between the anode and the cathode of the cell group to regulate the output voltage of the battery unit or control direct connection of the battery unit according to an instruction received from the battery control system; the cells of the cell group are connected in series; the battery control system is connected with the cells and the battery units to monitor the electrical parameters of the cells and the battery units, and connected with the output control units to control the direct connection of the battery units having the cell electrical parameters or battery unit electrical parameters exceeding a preset working range; the battery control system is further used for regulating the output voltages of other battery units to maintain the original output voltage of the battery system. The original output voltage of the battery system can be maintained even when the cells or the battery units are out of order, and the cost of realizing the redundancy of the battery cost is reduced.
Description
Technical field
The application relates to power supply field, is specifically related to uninterruption power source field, particularly relates to battery system, stacks of cells, battery control system and method.
Background technology
Along with the high speed development of cloud calculation service, the infrastructure construction of cloud data center is also towards standardization, modular future development.In recent years along with the continuous lifting of lithium cell performance, the constantly perfect of production technology, adopt the distributed uninterrupted power supply of lithium battery system frame in support (UPS)/high voltage direct current (HVDC) system in the data the heart had small-scale application.
Current lithium battery system, usually adopts the series connection of multiple lithium cell to form battery unit, more multiple lithium cells is connected into battery system.But this lithium battery system, when battery core breaks down, needs to change whole battery system.Impact to prevent changing the power supply backup of battery system to the distributed uninterrupted power supply of frame (UPS)/high voltage direct current (HVDC) system, need two lithium battery systems in parallel to realize redundancy, the cost therefore realizing battery system redundancy is higher.
Summary of the invention
This application provides battery system, stacks of cells, battery control system and method.
On the one hand, this application provides a kind of battery system, comprising: stacks of cells, comprise multiple battery units of series connection; Described battery unit comprises: output control unit and battery core group; Described output control unit connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of described battery core group, leads directly to for regulating the output voltage of described battery unit according to the instruction of the battery control system received or controlling described battery unit; Connect between battery core in described battery core group; Described battery control system, connect described battery core and described battery unit to monitor its electric parameter, and connect described output control unit, the battery unit exceeding its default working range with the electric parameter of the electric parameter or battery unit that control battery core leads directly to, and regulates the output voltage of other battery unit to keep the former output voltage of battery system.
In some embodiments, described output control unit comprises: straight-through subelement, between the both positive and negative polarity being connected to described battery unit, leads directly to for controlling described battery unit according to the instruction of the described battery control system received; Pressure regulation subelement, between the both positive and negative polarity being connected to described battery core group and the both positive and negative polarity of described battery unit, for regulating the output voltage of described battery unit to keep the former output voltage of battery system according to the instruction of the described battery control system received.
In some embodiments, described straight-through subelement comprises: relay, contactor or metal-oxide-semiconductor.
In some embodiments, described pressure regulation subelement comprises: DC/DC power inverter, voltage-stabiliser tube or low pressure difference linear voltage regulator LDO.
In some embodiments, described battery control system comprises: monitoring means, connects described battery core to monitor the electric parameter of battery core, and connects described battery unit to monitor the electric parameter of battery unit; Straight-through command unit, connect described output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send the output control unit that straight-through instruction exceeds the battery unit of its default working range to the electric parameter of the electric parameter of battery core or battery unit straight-through to control battery unit; Pressure regulation command unit, connect described output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, to regulate the output voltage of the battery unit except straight-through battery unit, thus keep the output voltage of battery system.
In some embodiments, described battery core group connects described output control unit by switch.
Second aspect, this application provides a kind of stacks of cells, and described stacks of cells comprises multiple battery units of series connection; Described battery unit comprises: output control unit and battery core group; Described output control unit connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of described battery core group, leads directly to for regulating the output voltage of described battery unit according to the instruction of the battery control system received or controlling described battery unit; Connect between battery core in described battery core group.
The third aspect, this application provides the battery control system for stacks of cells, and described stacks of cells comprises multiple battery units of series connection; Described battery unit comprises: output control unit and battery core group; Described output control unit connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of described battery core group, leads directly to regulate the output voltage of described battery unit or to control described battery unit; Connect between battery core in described battery core group; Described battery control system comprises: monitoring means, connects described battery core to monitor the electric parameter of battery core, and connects described battery unit to monitor the electric parameter of battery unit; Straight-through command unit, connect described output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send the output control unit that straight-through instruction exceeds the battery unit of its default working range to the electric parameter of the electric parameter of battery core or battery unit straight-through to control battery unit; Pressure regulation command unit, connect described output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, to regulate the output voltage of described battery unit except straight-through battery unit, thus keep the output voltage of battery system.
Fourth aspect, this application provides a kind of battery control method for stacks of cells, and described stacks of cells comprises multiple battery units of series connection; Described battery unit comprises: output control unit and battery core group; Described output control unit connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of described battery core group, leads directly to regulate the output voltage of described battery unit or to control described battery unit; Connect between battery core in described battery core group; Described method comprises: the electric parameter obtaining described battery core electric parameter and described battery unit; According to the electric parameter of described battery core and the electric parameter of described battery unit, send the output control unit that straight-through instruction exceeds the battery unit of its default working range to the electric parameter of the electric parameter of battery core or battery unit straight-through to control battery unit; And according to the electric parameter of described battery core and the electric parameter of described battery unit, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, with the output voltage of the output voltage thus maintenance battery system that regulate described battery unit except straight-through battery unit.
The battery system that the application provides, stacks of cells, battery control system and method, comprise stacks of cells and battery control system by arranging battery system; Stacks of cells comprises multiple battery units of series connection, and arranges battery unit and comprise: output control unit and battery core group; Output control unit is set and connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of battery core group, for according to receive battery control system instruction regulating cell unit output voltage or control battery unit lead directly to; Arrange between the battery core in battery core group and connect; And battery system is set also comprises battery control system, connect each battery core to monitor the electric parameter of battery core, connect each battery unit to monitor the electric parameter of battery unit, and connect each output control unit, the battery unit exceeding its default working range with the electric parameter of the electric parameter or battery unit that control battery core leads directly to, and regulates the output voltage of other battery unit except straight-through battery unit to keep the former output voltage of battery system.Achieve when battery core or cell malfunctions, keep the former output voltage of battery system, reduce the cost realizing battery system redundancy.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, the other features, objects and advantages of the application will become more obvious:
Fig. 1 a shows a kind of schematic diagram of the battery system according to the embodiment of the present application;
Fig. 1 b shows the another kind of schematic diagram of the battery system according to the embodiment of the present application;
Fig. 2 shows a kind of indicative flowchart of the battery control method according to the embodiment of the present application.
Embodiment
Below in conjunction with drawings and Examples, the application is described in further detail.Be understandable that, specific embodiment described herein is only for explaining related invention, but not the restriction to this invention.It also should be noted that, for convenience of description, in accompanying drawing, illustrate only the part relevant to Invention.
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 application in detail in conjunction with the embodiments.
First, the embodiment of the present application provides a kind of battery system.
Fig. 1 a shows a kind of schematic diagram of the battery system according to the embodiment of the present application.
As shown in Figure 1a, battery system 100 can include but not limited to: stacks of cells 101 and battery control system 102.
Stacks of cells 101 can include but not limited to: multiple battery units 103 of series connection.
Battery unit 103 can include but not limited to: output control unit 104 and battery core group 105.
Output control unit 104, connects the both positive and negative polarity of battery unit 103 and the both positive and negative polarity of battery core group 105, for the instruction regulating cell unit 103 according to the battery control system 102 received output voltage or to control battery unit 103 straight-through.
Connect between battery core in battery core group 105.Battery core wherein, can be any one battery core of the prior art, such as lead acid storage battery core, lithium cell etc., also can be any one battery core in WeiLai Technology, such as zinc battery core etc.
Battery control system 102, connection battery core and battery unit are to monitor its electric parameter, and connect output control unit 104, the battery unit exceeding its default working range with the electric parameter of the electric parameter or battery unit that control battery core leads directly to, and regulates the output voltage of other battery unit to keep the former output voltage of battery system.
The electric parameter that battery control system 102 is monitored, can include but not limited to: voltage, electric current, power and insulation resistance etc.
Below for the electric parameter of battery core, illustrate whether battery control system 102 exceeds to it mode that its default working range judges: if the electric parameter of battery core comprises many kinds of parameters, can monitor all parameters simultaneously, if wherein arbitrary parameter exceeds its default working range, then judge that the electric parameter of battery core exceeds its default working range; Also the judgement priority of many kinds of parameters can be set, judge according to priority order from high to low successively, if other parameter at the corresponding levels exceeds its default working range, then judge that the electric parameter of battery core exceeds its default working range, if do not exceed, judge whether other parameter of next stage exceeds its default working range, if other parameter of next stage exceeds its default working range, then judge that the electric parameter of battery core exceeds its default working range, if the parameter of all ranks does not all exceed preset range, then judge that the electric parameter of battery core does not exceed its default working range.
Voltage and current is comprised for the electric parameter of battery core, battery control system 102 can be monitored the voltage and current of battery core simultaneously, when one of voltage or electric current exceed its default working range, judge that the electric parameter of battery core exceeds its default working range; Also can substep be monitored by voltage and current two kinds of parameters, first the priority level of priority level higher than current parameters of the voltage parameter of battery core can be set, also namely based on voltage, electric current is whether the electric parameter of auxiliary judgement battery core exceeds its default working range: if voltage exceeds its default working range, then judge that electric parameter exceeds its default working range; If when voltage does not exceed its default working range, whether further Cutoff current exceeds its default working range, if electric current exceeds its default working range, then judges that electric parameter exceeds its default working range; If electric current does not exceed its default working range, then judge that the electric parameter of battery core does not exceed its default working range.
Those skilled in the art are to be understood that, battery control system 102 judges whether the electric parameter of battery unit 103 exceeds the mode of its default working range, to judge whether the electric parameter of battery core exceeds the mode of its default working range identical with battery control system 102, do not repeat them here.
For the battery unit that is determined, if battery control system 102 monitors in the electric parameter of battery core and the electric parameter of battery unit, there is an electric parameter to exceed its default working range, then by the output control unit of this battery unit, this battery unit is led directly to.
Battery control system 102 is after whether the electric parameter of the electric parameter or battery unit that judge battery core exceeds its default working range, can control battery unit by output control unit: if the electric parameter of the electric parameter of battery core or battery unit exceeds its default working range, then the battery unit that battery control system exceeds its default working range by the output control unit control electric parameter of battery core or the electric parameter of battery unit leads directly to; Meanwhile, the output voltage that battery control system 102 controls other battery unit except straight-through battery unit by output control unit raises with the former output voltage keeping battery system.
Fig. 1 b shows the another kind of schematic diagram of the battery system according to the embodiment of the present application.
As shown in Figure 1 b, with Fig. 1 a unlike, output control unit 104 can include but not limited to: straight-through subelement 106 and pressure regulation subelement 107.
Straight-through subelement 106, between the both positive and negative polarity being connected to battery unit 103, leads directly to for controlling battery unit 103 according to the instruction of the battery control system received.Relay, contactor or metal-oxide-semiconductor etc. can be included but not limited to.
Pressure regulation subelement 107, is connected between the both positive and negative polarity of battery core group 105 and the both positive and negative polarity of battery unit 103, for according to the output voltage of instruction regulating cell unit 103 of the battery control system 102 received to keep the former output voltage of battery system 100.DC/DC power inverter, voltage-stabiliser tube or low pressure difference linear voltage regulator (LDO) etc. can be included but not limited to.
Alternatively, above-mentioned battery control system 102 can include but not limited to: monitoring means (not shown), straight-through command unit (not shown) and pressure regulation command unit (not shown).
Monitoring means, connects the electric parameter of battery core monitoring battery core, and connects battery unit 103 to monitor the electric parameter of battery unit 103.
Straight-through command unit, connect output control unit 104, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send straight-through instruction exceeds the battery unit of its default working range output control unit to the electric parameter of the electric parameter of battery core or battery unit, lead directly to control battery unit.
Pressure regulation command unit, connect each output control unit 104, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, to regulate the output voltage of the battery unit except straight-through battery unit, thus keep the output voltage of battery system.
Alternatively, battery core group connects described output control unit by switch.Exceed its default working range when there being the electric parameter of battery core in battery core group and the battery unit at its place leads directly to time, battery core group can be disconnected and the connection of output control unit, to carry out the replacing of battery core group by switch.
Secondly, the embodiment of the present application additionally provides a kind of stacks of cells.
Stacks of cells can comprise multiple battery units of series connection.
Battery unit can include but not limited to: output control unit and battery core group; Output control unit connects the both positive and negative polarity of battery unit and the both positive and negative polarity of battery core group, for the instruction regulating cell unit according to the battery control system received output voltage or to control battery unit straight-through; Connect between battery core in battery core group.
Again, the embodiment of the present application additionally provides a kind of battery control system for stacks of cells.
Wherein, stacks of cells comprises multiple battery units of series connection; Battery unit can include but not limited to: output control unit and battery core group; Output control unit connects the both positive and negative polarity of battery unit and the both positive and negative polarity of battery core group, leads directly to the output voltage of regulating cell unit or control battery unit; Connect between battery core in battery core group; Battery control system can include but not limited to:
Monitoring means, connects battery core, to monitor the electric parameter of battery core, and connects battery unit to monitor the electric parameter of battery unit.
Straight-through command unit, connect output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send straight-through instruction exceeds the battery unit of its default working range output control unit to the electric parameter of the electric parameter of battery core or battery unit, lead directly to control battery unit.
Pressure regulation command unit, connect output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, to regulate the output voltage of the battery unit except straight-through battery unit, thus keep the output voltage of battery system.
Finally, the embodiment of the present application additionally provides the battery control method for stacks of cells.
Wherein, stacks of cells comprises multiple battery units of series connection; Battery unit can include but not limited to: output control unit and battery core group; Output control unit connects the both positive and negative polarity of battery unit and the both positive and negative polarity of battery core group, leads directly to the output voltage of regulating cell unit or control battery unit; Connect between battery core in battery core group.
Fig. 2 shows a kind of indicative flowchart of the battery control method according to the embodiment of the present application.
As shown in Figure 2, battery control method 200 comprises:
Step S201: obtain the electric parameter of battery core and the electric parameter of battery unit.
Step S202: according to the electric parameter of battery core and the electric parameter of battery unit, send straight-through instruction exceeds the battery unit of its default working range output control unit to the electric parameter of the electric parameter of battery core or battery unit, lead directly to control battery unit; And according to the electric parameter of battery core and the electric parameter of battery unit, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, to regulate the output voltage of the battery unit except straight-through battery unit, thus keep the output voltage of battery system.
The battery system that the above embodiments of the present application provide, stacks of cells, battery control system and method, comprise stacks of cells and battery control system by arranging battery system; Stacks of cells comprises multiple battery units of series connection, and arranges battery unit and comprise: output control unit and battery core group; Output control unit is set and connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of battery core group, for according to receive battery control system instruction regulating cell unit output voltage or control battery unit lead directly to; Arrange between the battery core in battery core group and connect; And battery system is set also comprises battery control system, connect each battery core to monitor the electric parameter of battery core, connect each battery unit to monitor the electric parameter of battery unit, and connect each output control unit, the battery unit exceeding its default working range with the electric parameter of the electric parameter or battery unit that control battery core leads directly to, and regulates the output voltage of other battery unit to keep the former output voltage of battery system.Achieve when battery core or cell malfunctions, keep the former output voltage of battery system, reduce the cost realizing battery system redundancy.
As another aspect, present invention also provides a kind of computer-readable recording medium, this computer-readable recording medium can be the computer-readable recording medium comprised in device described in above-described embodiment; Also can be individualism, be unkitted the computer-readable recording medium allocated in terminal.Described computer-readable recording medium stores more than one or one program, and described program is used for performance description in the battery control method of the application by one or more than one processor.
More than describe and be only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art are to be understood that, invention scope involved in the application, be not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should be encompassed in when not departing from described inventive concept, other technical scheme of being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed simultaneously.The technical characteristic that such as, disclosed in above-mentioned feature and the application (but being not limited to) has similar functions is replaced mutually and the technical scheme formed.
Claims (9)
1. a battery system, is characterized in that, comprising:
Stacks of cells, comprises multiple battery units of series connection; Described battery unit comprises: output control unit and battery core group; Described output control unit connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of described battery core group, leads directly to for regulating the output voltage of described battery unit according to the instruction of the battery control system received or controlling described battery unit; Connect between battery core in described battery core group;
Described battery control system, connect described battery core and described battery unit to monitor its electric parameter, and connect described output control unit, the battery unit exceeding its default working range with the electric parameter of the electric parameter or battery unit that control battery core leads directly to, and regulates the output voltage of other battery unit to keep the former output voltage of battery system.
2. system according to claim 1, is characterized in that, described output control unit comprises:
Straight-through subelement, between the both positive and negative polarity being connected to described battery unit, leads directly to for controlling described battery unit according to the instruction of the described battery control system received;
Pressure regulation subelement, between the both positive and negative polarity being connected to described battery core group and the both positive and negative polarity of described battery unit, for regulating the output voltage of described battery unit to keep the former output voltage of battery system according to the instruction of the described battery control system received.
3. system according to claim 2, is characterized in that, described straight-through subelement comprises: relay, contactor or metal-oxide-semiconductor.
4. according to the system of one of claim 2-3, it is characterized in that, described pressure regulation subelement comprises: DC/DC power inverter, voltage-stabiliser tube or low pressure difference linear voltage regulator LDO.
5. system according to claim 1, is characterized in that, described battery control system comprises:
Monitoring means, connects described battery core to monitor the electric parameter of battery core, and connects described battery unit to monitor the electric parameter of battery unit;
Straight-through command unit, connect described output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send the output control unit that straight-through instruction exceeds the battery unit of its default working range to the electric parameter of the electric parameter of battery core or battery unit straight-through to control battery unit;
Pressure regulation command unit, connect described output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, to regulate the output voltage of the battery unit except straight-through battery unit, thus keep the output voltage of battery system.
6. system according to claim 1, is characterized in that, described battery core group connects described output control unit by switch.
7. a stacks of cells, is characterized in that, described stacks of cells comprises multiple battery units of series connection;
Described battery unit comprises: output control unit and battery core group; Described output control unit connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of described battery core group, leads directly to for regulating the output voltage of described battery unit according to the instruction of the battery control system received or controlling described battery unit; Connect between battery core in described battery core group.
8. for a battery control system for stacks of cells, it is characterized in that, described stacks of cells comprises multiple battery units of series connection; Described battery unit comprises: output control unit and battery core group; Described output control unit connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of described battery core group, leads directly to regulate the output voltage of described battery unit or to control described battery unit; Connect between battery core in described battery core group; Described battery control system comprises:
Monitoring means, connects described battery core to monitor the electric parameter of battery core, and connects described battery unit to monitor the electric parameter of battery unit;
Straight-through command unit, connect described output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send the output control unit that straight-through instruction exceeds the battery unit of its default working range to the electric parameter of the electric parameter of battery core or battery unit straight-through to control battery unit;
Pressure regulation command unit, connect described output control unit, for when the electric parameter of the battery core monitored or the electric parameter of battery unit exceed its default working range, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, to regulate the output voltage of described battery unit except straight-through battery unit, thus keep the output voltage of battery system.
9. for a battery control method for stacks of cells, it is characterized in that, described stacks of cells comprises multiple battery units of series connection; Described battery unit comprises: output control unit and battery core group; Described output control unit connects the both positive and negative polarity of described battery unit and the both positive and negative polarity of described battery core group, leads directly to regulate the output voltage of described battery unit or to control described battery unit; Connect between battery core in described battery core group; Described method comprises:
Obtain the electric parameter of described battery core and the electric parameter of described battery unit;
According to the electric parameter of described battery core and the electric parameter of described battery unit, send the output control unit that straight-through instruction exceeds the battery unit of its default working range to the electric parameter of the electric parameter of battery core or battery unit straight-through to control battery unit; And according to the electric parameter of described battery core and the electric parameter of described battery unit, send pressure regulation instruction to the output control unit of the battery unit except straight-through battery unit, to regulate the output voltage of described battery unit except straight-through battery unit, thus keep the output voltage of battery system.
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| CN108569142B (en) * | 2017-03-10 | 2022-04-15 | 法拉第未来公司 | System and method for integrating redundant bus architecture into power system |
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| CN104701943B (en) | 2019-02-12 |
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