AU2016241607B2 - Storage battery unit and electricity storage system - Google Patents
Storage battery unit and electricity storage system Download PDFInfo
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- AU2016241607B2 AU2016241607B2 AU2016241607A AU2016241607A AU2016241607B2 AU 2016241607 B2 AU2016241607 B2 AU 2016241607B2 AU 2016241607 A AU2016241607 A AU 2016241607A AU 2016241607 A AU2016241607 A AU 2016241607A AU 2016241607 B2 AU2016241607 B2 AU 2016241607B2
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- Australia
- Prior art keywords
- storage battery
- power
- voltage
- communication unit
- power supply
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- 230000005611 electricity Effects 0.000 title claims description 18
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 abstract description 16
- 239000012212 insulator Substances 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
A storage battery unit (10) is provided with a plurality of storage battery modules (20), and a power supply unit (31). The storage battery modules (20) respectively have storage batteries (21a), and communication units (22) that transmit information relating to charging and/or discharging of the storage batteries (21a). The storage batteries (21a) constitute a storage battery group (21) by being electrically connected to each other. The power supply unit (31) is electrically connected to the storage battery modules (20), has a voltage (composite voltage V0) between both the ends of the storage battery group (21) inputted thereto, and supplies drive power to the communication units (22) of the storage battery modules (20).
Description
DESCRIPTION
STORAGE BATTERY UNIT AND ELECTRICITY STORAGE SYSTEM
TECHNICAL FIELD [0001]
The present invention relates generally to storage battery units, and more particularly to a storage battery unit including a communication unit for each storage battery module, and to an electricity storage system.
BACKGROUND ART [0002]
Conventionally, in a storage battery unit including a plurality of storage battery modules which are electrically connected in series, the circuits included in each storage battery module receive power supplied from the storage battery in the storage battery module (see Patent Literature (PTL) 1).
[0003]
In PTL 1, an assembled battery unit (storage battery module) includes^ an assembled battery including a plurality of battery cells (cells) which are connected in series! and monitoring devices which receive power obtained based on the voltage output from the assembled batteries.
Citation List
Patent Literature [0004] PTL 1: Japanese Unexamined Patent Application Publication No.
2013-102657
2016241607 09 Nov 2018
SUMMARY OF THE INVENTION
TECHNICAL PROBLEM(S) [0005]
In the technique described in PTL 1, when, for example, the operating states, the operating conditions, or the components of the circuits in the respective monitoring devices vary, the power consumed by each storage battery module (assembled battery unit) also varies. This leads to variations in remaining amount of the power charged in the cells of each storage battery module, resulting in an inefficient use of the storage battery module.
[0006]
The present invention has been conceived in view of the above circumstances. An object of the present invention is to provide a storage battery unit and an electricity storage system each allows an efficient use of storage battery modules.
SOLUTIONS TO PROBLEMS [0007]
A storage battery unit according to one aspect of the present invention includes: a plurality of storage battery modules! and a power supply. Each of the plurality of storage battery modules includes a storage battery and a communication unit which transmits information related to at least one of charging and discharging of the storage battery, the storage batteries are electrically connected to each other to form a storage battery group, and the power supply is electrically connected to the plurality of storage battery modules, receives a voltage across the storage battery group as an input, supplies driving power to the communication unit of each of the plurality of
2016241607 09 Nov 2018 storage battery modules, the communication unit includes a plurality of circuit blocks, each of the plurality of storage battery modules further includes a voltage converter, the power supply supplies the driving power to at least one of the plurality of circuit blocks included in the communication unit of each of the plurality of storage battery modules, and the voltage converter receives an output voltage of the storage battery as an input, steps down the output voltage, and supplies power obtained based on the stepped down voltage to a remaining circuit block which does not receive the driving power among the plurality of circuit blocks included in the communication unit.
[0008]
An electricity storage system according to one aspect of the present invention includes: the storage battery unit; and a power conditioner which communicates with the storage battery unit. The power conditioner controls charging and discharging of the storage batteries.
ADVANTAGEOUS EFFECT OF INVENTION [0009]
The storage battery unit and the electricity storage system according to the present invention each allows an efficient use of the storage battery modules.
BRIEF DESCRIPTION OF DRAWINGS [0010] FIG. 1 illustrates a configuration of an electricity storage system according to Embodiment 1.
FIG. 2 illustrates a configuration of an electricity storage system when power is supplied to a portion of a communication unit in each storage battery
2016241607 09 Nov 2018 module.
DESCRIPTION OF EXEMPLARY EMBODIMENTS [0011]
Embodiments of the present invention will be described below in detail with reference to the drawings. Note that the embodiments described below each show a preferable specific example of the present invention. The numerical values, elements, the arrangement and connection of the elements, etc., indicated in the following embodiments are mere examples, and therefore do not intend to limit the present invention. Therefore, among elements in the following embodiments, those not recited in any of the independent claims defining the most generic part of the present invention are described as optional elements.
[0012]
Note that the drawings are represented schematically and are not necessarily precise illustrations. Additionally, like reference signs indicate like elements in the drawings.
[0013] (EMBODIMENT 1)
Hereinafter, storage battery unit 10 according to Embodiment 1 will be described with reference to FIG. 1.
[0014]
FIG. 1 illustrates a configuration of electricity storage system 1 according to Embodiment 1.
[0015]
As illustrated in FIG. 1, electricity storage system 1 according to
2016241607 09 Nov 2018
Embodiment 1 includes storage battery unit 10 and power conditioner 50. Storage battery unit 10 is, for example, installed in the facility such as housing. In the facility, power conditioner 50 is installed. Power conditioner 50 is a device which controls charging and discharging of a plurality of storage battery modules 20 included in storage battery unit 10, using the power supplied from commercial power supply 51. Specifically, power conditioner 50 controls charging and discharging of storage battery 21a in each storage battery module
20. Storage battery unit 10 communicates with power conditioner 50, transmits and receives data (information) relating to at least one of charging and discharging of storage battery modules 20.
[0016]
When storage battery unit 10 cannot receive power supplied from commercial power supply 51 due to, for example, power outage, storage battery unit 10 supplies the charged power to a load in the facility (not illustrated) under the control of power conditioner 50.
[0017]
As illustrated in FIG. 1, storage battery unit 10 includes communication relay 30 in addition to storage battery modules 20. As illustrated in FIG. 1, each power storage module 20 includes storage battery 21a, and communication unit 22.
[0018]
Each storage battery 21a includes a plurality of cells 21b connected in series. Each cell 21b is, for example, a lithium ion battery. Each storage battery 21a outputs an output voltage which is the sum of the voltages across cells 21b.
[0019]
2016241607 09 Nov 2018
Storage battery modules 20 are connected in series. Specifically, as illustrated in FIG. 1, respective storage batteries 21a are connected in series, forming single storage battery group 21. Voltage V0 across storage battery group 21 in which storage batteries 21a are connected in series is provided to communication relay 30. Voltage V0 across storage battery group 21 is a sum of the voltages output from respective storage batteries 21a. The voltage value of voltage V0 across storage battery group 21 (hereinafter, also referred to as composite voltage V0) is, for example, 93V. This value is a mere example, and the value of voltage V0 is not intended to be limited to this value. In Embodiment 1, cells 21b of storage batteries 21a are the same type and have the same performance according to the specification.
[0020]
Each communication unit 22 includes a plurality of circuit blocks. Specifically, as illustrated in FIG. 1, communication unit 22 includes, as circuit blocks, data controller 23 and communication controller 24.
[0021]
Data controller 23 includes a processor which operates according to a program, as a main hardware element. Data controller 23 obtains data related to storage battery 21a, and transmits the obtained data to communication relay 30. For example, data controller 23 obtains the data of the temperature of battery 21a measured by a temperature sensor included in storage battery module 20, and transmits the obtained data (battery temperature) to communication relay 30 (first communication unit 32 which is to be described) via communication controller 24. Processor constituting data controller 23 may be in any form such as a microcomputer which is integrated with a memory, or a form independent from a memory.
2016241607 09 Nov 2018 [0022]
Communication controller 24 transmits the data (battery temperature) obtained by data controller 23 to communication relay 30. For example, communication controller 24 includes a communication driver for performing data communication in accordance with RS485 standards, and a communication interface which is defined by RJ45 standards. The communication driver receives the data (battery temperature) from data controller 23, and outputs the received data to the communication interface. The communication interface transmits the received data (battery temperature) to communication relay 30.
[0023]
Communication controller 24 performs communication with other storage battery modules 20. Hence, for example, one of storage battery modules 20 can collect the data (battery temperature) of other storage battery modules 20, and collectively transmit the collected data to communication relay 30.
[0024]
Communication relay 30 includes, as illustrated in FIG. 1, power supply 31, first communication unit 32, controller 33, and second communication unit 34. [0025]
Power supply 31 is electrically connected to storage battery modules 20. Specifically, power supply 31 is electrically connected to storage battery group 21 including storage batteries 21a connected in series. Power supply 31 receives the voltage across storage battery group 21 (composite voltage VO) as an input, and supplies the power which is obtained based on composite voltage
2016241607 09 Nov 2018
VO to communication units 22 of storage battery modules 20. Power supply 31 supplies the power which is obtained based on composite voltage V0 to first communication unit 32, controller 33, and second communication unit 34. Specifically, power supply 31 includes, as illustrated in FIG. 1, first step-down unit 41 and second step-down unit 42. First step-down unit 41 is a transformer which steps down composite voltage V0 input from storage battery modules 20 to generate first voltage VI, and outputs generated first voltage VI to controller 33 and second communication unit 34. For example, first step-down unit 41 steps down composite voltage V0 (93V) to 12V. Second step-down unit 42 is a transformer, and further steps down the voltage stepped down by first step-down unit 41 to generate second voltage V2, and outputs second voltage V2 to first communication unit 32 and communication units 22 of storage battery modules 20. For example, second step-down unit 42 steps down the voltage (12V) stepped down by first step-down unit 41, to 5V. Note that these values are merely examples, and the values are not intended to be limited to these values.
[0026]
First communication unit 32 receives and transmits data from and to storage battery modules 20.
[0027]
Controller 33 includes a processor which operates according to a program, as a main hardware element, and entirely controls communication relay 30. This type of processor may be in any form such as a microcomputer which is integrated with a memory, or a form independent from a memory. Controller 33 controls first communication unit 32 so that first communication unit 32 transmits, to each storage battery module 20, the data received from
2016241607 09 Nov 2018 power conditioner 50 through second communication unit 34 (for example, information instructing obtainment of battery temperature). Moreover, controller 33 controls second communication unit 34 so that second communication unit 34 transmits, to power conditioner 50, the data (battery temperature) that first communication unit 32 has received from battery modules 20.
[0028]
Second communication unit 34 transmits and receives data to and from power conditioner 50.
[0029]
When power conditioner 50 receives the data from storage battery unit 10, power conditioner 50 controls charging and discharging of each storage battery 21a according to the received data. For example, when the received data is the battery temperature of each storage battery 21a, power conditioner 50 controls at least one of the charging current and the charging voltage of storage battery 21a so as to charge at the power amount corresponding to the battery temperature.
[0030]
Although power supply 31 described above is configured to step down composite voltage VO input from storage battery group 21, the configuration of power supply 31 is not limited to such an example. Power supply 31 may be configured to boost composite voltage V 0.
[0031] (Variation)
Power supply 31 of battery unit 10 described in Embodiment 1 supplies the power obtained based on composite voltage VO, to the entire communication
2016241607 09 Nov 2018 units 22 of storage battery modules 20. However, the configuration of power supply 31 is not limited to such an example.
[0032]
For example, power supply 31 may supply power which is obtained based on composite voltage V0 to a portion of communication unit 22 of each storage battery module 20.
[0033]
As an example of this case, with reference to FIG. 2, a case where power supply 31 supplies the power which is obtained based on composite voltage V0, to communication controller 24 of each communication unit 22 will be described focusing on the differences from Embodiment 1. In this Variation, the elements same as those in Embodiment 1 will share the same reference numerals, and the descriptions thereof are appropriately omitted.
[0034]
FIG. 2 illustrates a configuration of electricity storage system 1 when power is supplied to a portion of communication unit 22 of each storage battery module 20.
[0035]
As illustrated in FIG. 2, each storage battery module 20 further includes voltage converter 25. Voltage converter 25 is, for example, a DC to DC converter. Voltage converter 25 is electrically connected to storage battery 21a. Voltage converter 25 steps down the voltage input from storage battery 21a, stabilizes the voltage, and outputs the stabilized voltage to data controller
23. Accordingly, data controller 23 can operate without receiving power from power supply 31.
[0036]
2016241607 09 Nov 2018
Power supply 31 included in communication relay 30 supplies the power which is obtained based on second voltage V2 which is the output voltage of second step-down unit 42, to communication controller 24 of each storage battery module 20 and to first communication unit 32.
[0037]
In this Variation, the power supply destination of power supply 31 is communication controller 24 as a portion of communication unit 22, but the destination is not limited to such an example. A portion of communication unit 22 to which power supply 31 supplies power may be only data controller 23, only the communication driver included in communication controller 24, or only the communication interface included in communication controller 24. A portion of communication unit 22 to which power supply 31 supplies power may be a set of the communication drivers included in data controller 23 and communication controller 24, or a set of communication interfaces included in data controller 23 and communication controller 24. Of data controller 23 and communication controller 24 included in communication unit 22, the elements which do not receive power from power supply 31 are electrically connected to storage battery 21a via voltage converter 25. The elements which do not receive power from power supply 31 receive power from storage battery 21a through voltage converter 25. A portion of communication unit 22 to which power supply 31 supplies power may be a portion of data controller 23, or may be a portion of communication controller 24.
[0038]
It has been described that power conditioner 50 controls, in conjunction with commercial power supply 51, charging and discharging of storage battery modules 20 using the power supplied from commercial power supply 51.
2016241607 09 Nov 2018
However, the present invention is not limited to such an example. Power conditioner 50 may control, in conjunction with solar cells, charging and discharging of storage battery modules 20 using the power supplied from the solar cells. Additionally, power conditioner 50 may control charging and discharging of storage battery modules 20, using power other than power from commercial power supply 51 or solar cells. Examples of such power include power generated using natural energy such as wind power, water energy, or geothermal power.
[0039] (Summary)
As described above, storage battery unit 10 according to one embodiment of the present invention includes a plurality of storage battery modules 20, and power supply 31. Each storage battery module 20 has storage battery 21a, and communication unit 22 which transmits information related to at least one of charging and discharging of storage battery 21a. Storage batteries 21a are electrically connected to form storage battery group 21. Power supply 31 is electrically connected to storage battery modules 20. Power supply 31 receives voltage across storage battery group 21 (composite voltage V0) as an input, and supplies driving power to communication unit 22 of each storage battery module 20.
[0040]
According to this configuration, in storage battery unit 10, power supply 31 receives voltage across storage battery group 21 (composite voltage V0), and subsequently supplies driving power to each communication unit 22. Therefore, it is possible to prevent occurrence of variations in voltages of storage battery modules 20 caused by differences in power consumed by storage
2016241607 09 Nov 2018 battery modules 20 due to the operating states, the operating conditions, the components, etc. of communication units 22. In other words, storage battery unit 10 can even power stored in storage battery modules 20 to the maximum extent possible. Accordingly, at the time of charging, the amount of power that can be charged in storage battery unit 10 (storage battery group 21) can be increased to the maximum extent possible. At the time of discharging, too, in a similar manner to charging, the amount of power that can be discharged from storage battery unit 10 (storage battery group 21) can be increased to the maximum extent possible. Therefore, storage battery unit 10 is capable of efficiently using storage battery modules 20.
[0041]
It is preferable that power supply 31 steps down the input voltage across storage battery group 21 (composite voltage V0), and supplies driving power obtained based on the stepped-down voltage to communication unit 22 of each storage battery module 20.
[0042]
According to this configuration, storage battery unit 10 is capable of supplying, to communication unit 22 of each storage battery module 20, appropriate power for operation of communication unit 22.
[0043]
Here, communication unit 22 includes a plurality of circuit blocks (for example, data controller 23 and communication controller 24). It is preferable that power supply 31 supplies driving power to all of the circuit blocks of communication unit 22 of each storage battery module 20.
[0044]
According to this configuration, power storage battery unit 10 supplies
2016241607 09 Nov 2018 driving power to the entire communication units 22. Therefore, in comparison with the case where driving power is supplied to a portion of each communication unit 22, it is possible to further prevent occurrence of variations in voltages of storage battery modules 20.
[0045]
Here, communication unit 22 includes a plurality of circuit blocks (for example, data controller 23 and communication controller 24). Each of storage battery modules 20 further includes voltage converter 25. Power supply 31 supplies driving power to at least one of the circuit blocks of communication unit 22 of each storage battery module 20. It is preferable that voltage converter 25 receives the output voltage of storage battery 21a as an input, steps down the output voltage, and supplies the power obtained based on the stepped-down voltage to the remaining circuit blocks, of driving power out of communication units 22, which do not receive supply of the driving power. [0046]
According to this configuration, since storage battery unit 10 supplies driving power to a portion of each communication unit 22, it is possible to prevent occurrence of variations in voltages of storage battery modules 20 as compared with the conventional case where power from the storage battery is directly supplied to the entire communication unit 22. Moreover, when driving power is to be supplied to the entire communication unit 22, an insulator needs to be provided between storage battery 21a and communication unit 22 because the voltage of storage battery 21a and the voltage output from power supply 31 are different. On the other hand, when driving power is to be supplied to a portion of each communication unit 22, the output voltage of storage battery 21a is stepped down by voltage converter 25, and thus the
2016241607 09 Nov 2018 difference between the output voltage of storage battery 21a and the voltage of power supply 31 is smaller than the difference in the former case. Therefore, an insulator can be more easily provided compared to the former case.
[0047]
Electricity storage system 1 according to one aspect of the present invention includes storage battery unit 10 and power conditioner 50 which communicates with storage battery unit 10. Power conditioner 50 controls charging and discharging of storage battery 21a.
[0048]
According to this configuration, in electricity storage system 1, power supply 31 receives voltage across storage battery group 21 (composite voltage V0), and subsequently supplies driving power to each communication unit 22. Therefore, it is possible to prevent occurrence of variations in voltages of storage battery modules 20 caused by differences in power consumed by storage battery modules 20 due to the operating states, the operating conditions, the components, etc. of respective communication units 22. In other words, electricity storage system 1 can even power stored in storage battery modules 20 to the maximum extent possible. Accordingly, at the time of charging, the amount of power that can be charged in storage battery unit 10 (storage battery group 21) can be increased to the maximum extent possible. At the time of discharging, too, in a similar manner to charging, the amount of power that can be discharged from storage battery unit 10 (storage battery group 21) can be increased to the maximum extent possible. Power conditioner 50 can control charging and discharging of each storage battery 21a according to the state of storage battery module 20 (for example, the temperature of storage battery 21a). Hence, it is possible to prevent occurrence of variations in voltages of
2016241607 09 Nov 2018 storage battery modules 20 due to the difference in states of storage batteries 21a (for example, temperature). In other words, electricity storage system 1 can even power stored in storage battery modules 20 to the maximum extent possible. Therefore, electricity storage system 1 is capable of efficiently using storage battery modules 20.
[0049]
Although storage battery unit 10 and electricity storage system 1 according to the present invention have been described based on the above embodiments, the present invention is not limited to those embodiments. Note that embodiments resulting from variations of the above embodiments conceived by those skilled in the art, as well as embodiments resulting from arbitrary combinations of elements and functions in the above embodiments are included within the present invention.
[0050]
It is to be understood that, if any prior art publication is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
[0051]
In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
Claims (4)
1. A storage battery unit comprising:
a plurality of storage battery modules! and a power supply, wherein each of the plurality of storage battery modules includes a storage battery and a communication unit which transmits information related to at least one of charging and discharging of the storage battery, the storage batteries are electrically connected to each other to form a storage battery group, the power supply is electrically connected to the plurality of storage battery modules, receives a voltage across the storage battery group as an input, and supplies driving power to the communication unit of each of the plurality of storage battery modules the communication unit includes a plurality of circuit blocks, each of the plurality of storage battery modules further includes a voltage converter, the power supply supplies the driving power to at least one of the plurality of circuit blocks included in the communication unit of each of the plurality of storage battery modules, and the voltage converter receives an output voltage of the storage battery as an input, steps down the output voltage, and supplies power obtained based on the stepped down voltage to a remaining circuit block which does not receive the driving power among the plurality of circuit blocks included in the communication unit.
2. The storage battery unit according to claim 1,
2016241607 09 Nov 2018 wherein the power supply steps down the input voltage across the storage battery group, and supplies the driving power obtained based on the stepped down voltage to the communication unit of each of the plurality of storage battery modules.
3. The storage battery unit according to claim 1 or claim 2, wherein the communication unit includes a plurality of circuit blocks, and the power supply supplies the driving power to all of the plurality of circuit blocks included in the communication unit of each of the plurality of storage battery modules.
4. An electricity storage system comprising:
the storage battery unit according to any one of claims 1 to 3, and a power conditioner which communicates with the storage battery unit, wherein the power conditioner controls charging and discharging of the storage batteries.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015067368 | 2015-03-27 | ||
| JP2015-067368 | 2015-03-27 | ||
| PCT/JP2016/001277 WO2016157740A1 (en) | 2015-03-27 | 2016-03-09 | Storage battery unit and electricity storage system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2016241607A1 AU2016241607A1 (en) | 2017-10-26 |
| AU2016241607B2 true AU2016241607B2 (en) | 2018-11-29 |
Family
ID=57004174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2016241607A Active AU2016241607B2 (en) | 2015-03-27 | 2016-03-09 | Storage battery unit and electricity storage system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6489332B2 (en) |
| AU (1) | AU2016241607B2 (en) |
| NZ (1) | NZ735701A (en) |
| WO (1) | WO2016157740A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019017162A (en) | 2017-07-05 | 2019-01-31 | パナソニックＩｐマネジメント株式会社 | Storage battery unit and connector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013066364A (en) * | 2011-08-31 | 2013-04-11 | Sony Corp | Power storage device and electric vehicle |
| JP2013102657A (en) * | 2011-11-10 | 2013-05-23 | Hitachi Ltd | Secondary battery monitoring device |
| JP2014153131A (en) * | 2013-02-06 | 2014-08-25 | Furukawa Electric Co Ltd:The | State of charge calculation device, state of charge calculation method and power supply system |
-
2016
- 2016-03-09 JP JP2017509228A patent/JP6489332B2/en active Active
- 2016-03-09 WO PCT/JP2016/001277 patent/WO2016157740A1/en active Application Filing
- 2016-03-09 NZ NZ735701A patent/NZ735701A/en unknown
- 2016-03-09 AU AU2016241607A patent/AU2016241607B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013066364A (en) * | 2011-08-31 | 2013-04-11 | Sony Corp | Power storage device and electric vehicle |
| JP2013102657A (en) * | 2011-11-10 | 2013-05-23 | Hitachi Ltd | Secondary battery monitoring device |
| JP2014153131A (en) * | 2013-02-06 | 2014-08-25 | Furukawa Electric Co Ltd:The | State of charge calculation device, state of charge calculation method and power supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2016157740A1 (en) | 2018-05-31 |
| WO2016157740A1 (en) | 2016-10-06 |
| NZ735701A (en) | 2019-05-31 |
| JP6489332B2 (en) | 2019-03-27 |
| AU2016241607A1 (en) | 2017-10-26 |
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