CN106130190A - The family energy-storage system of multivoltage output - Google Patents

The family energy-storage system of multivoltage output Download PDF

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Publication number
CN106130190A
CN106130190A CN201610609152.0A CN201610609152A CN106130190A CN 106130190 A CN106130190 A CN 106130190A CN 201610609152 A CN201610609152 A CN 201610609152A CN 106130190 A CN106130190 A CN 106130190A
Authority
CN
China
Prior art keywords
battery module
storage system
electrical switch
output
family energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610609152.0A
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Chinese (zh)
Inventor
张建兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIO Nextev Ltd
Original Assignee
NIO Nextev Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NIO Nextev Ltd filed Critical NIO Nextev Ltd
Priority to CN201610609152.0A priority Critical patent/CN106130190A/en
Publication of CN106130190A publication Critical patent/CN106130190A/en
Priority to PCT/CN2017/092845 priority patent/WO2018019133A1/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00Systems for storing electric energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42Conversion of dc power input into ac power output without possibility of reversal

Abstract

The invention belongs to power supply unit field, the concrete family energy-storage system that the output of a kind of multivoltage is provided.The family energy-storage system of the multivoltage output of the present invention aims to solve the problem that existing family energy-storage system can not realize the problem that multivoltage exports flexibly.For this purpose, this family energy-storage system includes controller, multiple electrical switch, CAN, multiple battery module and inverter, described battery module is electrically connected to described inverter via dc bus by described electrical switch, described controller is electrically connected with described battery module respectively by described CAN, described controller controls the break-make of described electrical switch, in order to realize the in series or in parallel of described battery module.Due to as characterized above, the family energy-storage system of the multivoltage output of the present invention realizes family energy-storage system output HIGH voltage by the series connection of battery module, realize family energy-storage system by the parallel connection of battery module and export low-voltage, and the quantity of effective battery module can be determined according to target voltage flexibly.

Description

The family energy-storage system of multivoltage output
Technical field
The invention belongs to power supply unit field, the concrete family energy-storage system that the output of a kind of multivoltage is provided.
Background technology
By enabling users with energy-storage system, user can utilize distributed power generation storing electricity by day, pass through family night Use with energy-storage system output, reduce the dependence to tradition electrical network, it is achieved that the efficient utilization of green energy resource.Based on communication row The continuity of industry and the consideration of 60V safe voltage, tradition family energy-storage system voltage platform uses 48V system;Along with market for Family energy storage system capacity and the demand of improved efficiency, can promote system effectiveness by using the high voltage platform of more than 200V More than 10%, this high voltage platform is increasingly becoming the selection that family energy-storage system is new.
But in 48V system and more than 200V high-pressure system demand the epoch deposited, how to realize same energy-storage system Both can be applicable to 48V low-pressure system, it is possible to be applied to more than 200V high-pressure system, or the system of other different voltages, become The key issue solved needed for the energy storaging product of family.
Correspondingly, this area needs a kind of new family energy-storage system to solve the problems referred to above.
Summary of the invention
In order to solve the problems referred to above of the prior art, it is solution existing family energy-storage system and can not realize multivoltage The problem of output flexibly, the invention provides the family energy-storage system of a kind of multivoltage output, and this family energy-storage system includes control Device processed, multiple electrical switch, CAN, multiple battery module and inverter, described electrical switch via dc bus by described Battery module is electrically connected to described inverter, and described controller is electrically connected with described battery module respectively by described CAN, Described controller controls the break-make of described electrical switch, in order to realize the in series or in parallel of described battery module.
In the preferred technical solution of the present invention, each described electrical switch includes the first electrical switch and the second electronics Switch, described battery module is sequentially connected electrically by described first electrical switch, defeated in order to realize the series connection of described battery module Go out;Described battery module is electrically connected with described dc bus, in order to realize described battery by described second electrical switch respectively The Parallel opertation of module.
In the preferred technical solution of the present invention, described controller controls described first electrical switch and institute with interlock mode State the second electrical switch so that described first electrical switch and described second electrical switch can not be closed at.
In the preferred technical solution of the present invention, first in the plurality of battery module and the second electricity of last Son switch is single-pole single-throw switch (SPST), and the second electrical switch of other battery modules is double-point double-throw switch, and the plurality of electricity First electrical switch of pond module be all the first electrical switch of single-pole single-throw switch (SPST) or the plurality of battery module be all single Double-pole double throw switch.
In the preferred technical solution of the present invention, the inside of each described battery module is both provided with DC fuse, institute State DC fuse for making specific battery module exit described family energy-storage system independently, and do not affect other battery modules Operation.
In the preferred technical solution of the present invention, the inside of each described battery module is both provided with BMS, each described electricity Pond module is connected with described CAN by described BMS.
In the preferred technical solution of the present invention, described battery module is charged by Distributed-generation equipment.
In the preferred technical solution of the present invention, described inverter is DC/AC inverter, described DC/AC inverter and institute State dc bus electrical connection, for unidirectional current being transformed into alternating current output.
In the preferred technical solution of the present invention, described family energy-storage system also includes display device, is used for showing each The duty of described battery module and/or show output voltage and the output electric current of each described battery module.
Skilled addressee readily understands that, according to technical scheme, by controller control and battery The break-make of the electrical switch of module electrical connection, it is possible to realize the serial or parallel connection of multiple battery module such that it is able to according to demand Obtain multiple different output voltage.
Accompanying drawing explanation
Fig. 1 be the family energy-storage system of the present invention the first embodiment in all battery modules series connection time system topological Block diagram.
Fig. 2 be the family energy-storage system of the present invention the first embodiment in all battery module parallel connections time system topological Block diagram.
Fig. 3 is the system topological block diagram of the second embodiment of the family energy-storage system of the present invention.
Detailed description of the invention
The preferred embodiment of the present invention is described with reference to the accompanying drawings.It will be apparent to a skilled person that this A little embodiments are used only for explaining the know-why of the present invention, it is not intended that limit the scope of the invention.This area skill It can be made adjustment by art personnel as required, in order to adapts to concrete application scenario.
In describing the invention, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that Instruction or hint relative importance.
In the first embodiment shown in Fig. 1 and Fig. 2, the family energy-storage system of the present invention includes controller, Duo Ge electricity Son switch, CAN, DC/AC inverter and multiple battery module.Battery module is standard battery module, and normal voltage is 48V.Electrical switch include the first electrical switch Kt and the second electrical switch Km, the first electrical switch Kt be arranged on battery module with Between battery module, for by adjacent battery module electrical connection, the second electrical switch Km is arranged on battery module and direct current is female Between line, battery module is connected on dc bus.It should be noted that at the first embodiment shown in Fig. 1 and Fig. 2 In, the second electrical switch Km1 of first battery module and the second electrical switch Kmn of last battery module is hilted broadsword list Throw switch, the second switch Km of other battery modules is all double-point double-throw switch, and the first electrical switch Kt is that single-pole single-throw(SPST is opened Close.Each battery module is connected with controller by CAN.DC/AC inverter electrically connects with direct current output bus, for by straight Stream electricity is transformed into alternating current output.
As it is shown in figure 1, the first electrical switch Kt all closes, the second electrical switch Km is all off, all battery modules Being sequentially connected in series, family energy-storage system High voltage output, output voltage is all battery module output voltage sums.If output voltage For more than 200V, family energy-storage system at least needs 5 pieces of battery module compositions.
As in figure 2 it is shown, the first electrical switch Kt is all off, the second electrical switch Km all closes, all battery modules Electrically connecting with dc bus respectively and be connected in parallel to each other, family energy-storage system low pressure exports, output voltage and standard battery module Voltage identical.
It should be noted that the Guan Bi of the first electrical switch Kt and the second electrical switch Km is all to pass through controller with disconnection It is controlled.In order to avoid battery module short circuit, controller is additionally provided with interlocking program, in order to ensure the first electrical switch Kt Can not be closed at the second electrical switch Km.Further, it is also possible to select thermorelay as the first electrical switch Kt.
It is both provided with BMS, BMS in each battery module to be connected with controller by CAN.In each battery module also Being provided with detachable DC fuse, when the situation of overload occurs in battery module, DC fuse can be cut rapidly Disconnected, battery module disconnects and outside connection.Each DC fuse exits whole for making the battery module of correspondence independently Individual family energy-storage system, and do not affect the operation of other battery modules.DC fuse and thermorelay are together to battery module Play the effect of duplicate protection.
Family energy-storage system is also provided with display device (not shown), and this display device is connected with controller, is used for The information such as the service condition of the duty of Real Time Observation battery module and output voltage, electric current and battery.
Referring next to Fig. 3, in the second embodiment shown in Fig. 3, the first electrical switch Kt1Open for single-pole double throw Close, controlled it by controller equally and disconnect and Guan Bi.First electrical switch Kt1Not moved end electrically connect with battery module 1#, One electrical switch Kt1Two moved ends electrically connect with two outfans of battery module 2# respectively;First electrical switch Kt(n-1)'s Moved end does not electrically connects with battery module (n-1) #, the first electrical switch Kt(n-1)Two moved ends respectively with the two of battery module n# Individual outfan electrically connects.Second electrical switch Km1 and the second electrical switch Kmn is single-pole single-throw switch (SPST), other second switches Km It it is all double-point double-throw switch.
With continued reference to Fig. 3, when battery module is all connected, by the cutter head of all first electrical switch Kt and moved end, left side Connect;During battery module sections in series, cutter head and the moved end, left side of the first electrical switch Kt of this part of battery module will be controlled Connection, the cutter head of remaining the first electrical switch Kt and the connection of moved end, right side.This kind of embodiment can realize 2 to n times The voltage output of single standard battery module.Than can only 1 times or n times single standard battery module voltage output first Embodiment, has the output of more voltage and selects.
With continued reference to Fig. 3, when battery module is all in parallel, all of first electrical switch Kt disconnects, the second electronic cutting Close Km all close, all battery modules electrically connects with dc bus respectively, family with energy-storage system low pressure export, output pressure and The voltage of standard battery module is identical.
So far, describe technical scheme already in connection with preferred implementation shown in the drawings, but, this area Skill will readily appreciate that, protection scope of the present invention is expressly not limited to these detailed description of the invention.Without departing from this On the premise of the principle of invention, correlation technique feature can be made change or the replacement of equivalent by those skilled in the art, these Within technical scheme after changing or replacing it falls within protection scope of the present invention.

Claims (10)

1. the family energy-storage system of multivoltage output, it is characterised in that described family energy-storage system includes controller, multiple Electrical switch, CAN, multiple battery module and inverter,
Described battery module is electrically connected to described inverter via dc bus by described electrical switch,
Described controller is electrically connected with described battery module respectively by described CAN,
Described controller controls the break-make of described electrical switch, in order to realize the in series or in parallel of described battery module.
The family energy-storage system of multivoltage the most according to claim 1 output, it is characterised in that each described electrical switch All include the first electrical switch and the second electrical switch,
Described battery module is sequentially connected electrically by described first electrical switch, defeated in order to realize the series connection of described battery module Go out;
Described battery module is electrically connected with described dc bus, in order to realize described battery by described second electrical switch respectively The Parallel opertation of module.
The family energy-storage system of multivoltage the most according to claim 2 output, it is characterised in that described controller is with interlocking Mode controls described first electrical switch and described second electrical switch so that described first electrical switch and described second electronics Switch can not be closed at.
The family energy-storage system of multivoltage the most according to claim 3 output, it is characterised in that the plurality of battery module In first and last the second electrical switch be single-pole single-throw switch (SPST), the second electrical switch of other battery modules is Double-point double-throw switch, and the first electrical switch of the plurality of battery module is all single-pole single-throw switch (SPST).
The family energy-storage system of multivoltage the most according to claim 3 output, it is characterised in that the plurality of battery module In first and last the second electrical switch be single-pole single-throw switch (SPST), the second electrical switch of other battery modules is Double-point double-throw switch, and the first electrical switch of the plurality of battery module is all single-pole double-throw switch (SPDT).
The family energy-storage system of multivoltage the most according to any one of claim 1 to 5 output, it is characterised in that each The inside of described battery module is both provided with DC fuse, and described DC fuse is used for making specific battery module move back independently Go out described family energy-storage system, and do not affect the operation of other battery modules.
The family energy-storage system of multivoltage the most according to claim 6 output, it is characterised in that each described battery module Inside be both provided with BMS, each described battery module is connected with described CAN by described BMS.
The family energy-storage system of multivoltage the most according to claim 7 output, it is characterised in that described battery module passes through Distributed-generation equipment is charged.
The family energy-storage system of multivoltage the most according to claim 8 output, it is characterised in that described inverter is DC/ AC inverter, described DC/AC inverter electrically connects with described dc bus, for unidirectional current is transformed into alternating current output.
The family energy-storage system of multivoltage the most according to any one of claim 1 to 9 output, it is characterised in that described Family energy-storage system also includes display device, every for the duty and/or display showing each described battery module The output voltage of individual described battery module and output electric current.
CN201610609152.0A 2016-07-28 2016-07-28 The family energy-storage system of multivoltage output Pending CN106130190A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610609152.0A CN106130190A (en) 2016-07-28 2016-07-28 The family energy-storage system of multivoltage output
PCT/CN2017/092845 WO2018019133A1 (en) 2016-07-28 2017-07-13 Household energy storage system for multi-voltage output

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Application Number Priority Date Filing Date Title
CN201610609152.0A CN106130190A (en) 2016-07-28 2016-07-28 The family energy-storage system of multivoltage output

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CN106130190A true CN106130190A (en) 2016-11-16

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2018019133A1 (en) * 2016-07-28 2018-02-01 蔚来汽车有限公司 Household energy storage system for multi-voltage output
WO2018107763A1 (en) * 2016-12-12 2018-06-21 蔚来汽车有限公司 Charging system having multiple branches and ports for energy storage type mobile charging vehicle, and mobile charging vehicle
CN110970988A (en) * 2019-12-24 2020-04-07 滁州安瑞电力自动化有限公司 Direct current screen capable of outputting multiple paths of voltage grades
CN111433998A (en) * 2017-10-29 2020-07-17 瑞维安知识产权控股有限责任公司 Configurable battery pack for fast charging

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CN111564858B (en) * 2020-04-09 2024-01-09 东莞市新瑞能源技术有限公司 Method for enabling household energy storage battery to be compatible with multiple inverters
GB2601285A (en) * 2020-08-05 2022-06-01 Li Zhongxi DC-modulating modular electrical converter system and corresponding method for operation

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018019133A1 (en) * 2016-07-28 2018-02-01 蔚来汽车有限公司 Household energy storage system for multi-voltage output
WO2018107763A1 (en) * 2016-12-12 2018-06-21 蔚来汽车有限公司 Charging system having multiple branches and ports for energy storage type mobile charging vehicle, and mobile charging vehicle
CN111433998A (en) * 2017-10-29 2020-07-17 瑞维安知识产权控股有限责任公司 Configurable battery pack for fast charging
CN110970988A (en) * 2019-12-24 2020-04-07 滁州安瑞电力自动化有限公司 Direct current screen capable of outputting multiple paths of voltage grades

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Application publication date: 20161116