JP2022141453A - 蓄電池制御装置、蓄電システム、及び蓄電池制御方法 - Google Patents
蓄電池制御装置、蓄電システム、及び蓄電池制御方法 Download PDFInfo
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- 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
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0025—Sequential battery discharge in systems with a plurality of batteries
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
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Abstract
【解決手段】直列に接続された複数の蓄電池セルC1~C8と、各蓄電池セルC1~C8をバイパスするバイパス回路とを備える蓄電システムを制御する蓄電池制御装置であって、充電完了までの残充電容量が他の蓄電池セルC1~C8に比して少ない蓄電池セルC1~C8を優先的にバイパス回路によりバイパスすることで、複数の蓄電池セルC1~C8の充電完了までの残充電量の差を減少させる第1の処理と、第1の処理の後に、複数の蓄電池セルC1~C8の充電を完了させる第2の処理とを実行する。
【選択図】図4
Description
RC[Ah]=CC×(100-SOC)/100 …(1)
但し、CCは、各蓄電池セルC1~Cnの現在の電池容量(本実施形態では電流容量[Ah])であり、残充電容量算出部102が下記(2)式により算出する。SOCは、各蓄電池セルC1~CnのSOC(State Of Charge)[%]であり、電流積算法、開放電圧から求める方法(電圧法)、電流積算法と電圧法とを組み合わせた方法等の種々の公知の方法を用いて推定することができる。
但し、C0は、各蓄電池セルC1~Cnの新品時の電流容量(Ah)であり、記憶部103が記憶している。また、SOHは、各蓄電池セルC1~CnのSOH(State Of Health)であり、残充電容量算出部102が、測定値取得部101が取得した測定値に基づいて推定する。
20 :バイパス回路
100 :蓄電池制御装置
C1~Cn :蓄電池セル
RC :残充電容量(残充電量)
VL :最低許容総電圧
PL :最低許容充電電力
Claims (5)
- 直列に接続された複数の蓄電池と、各蓄電池をバイパスするバイパス回路とを備える蓄電システムを制御する蓄電池制御装置であって、
充電完了までの残充電量が他の蓄電池に比して少ない蓄電池を優先的に前記バイパス回路によりバイパスすることで、複数の蓄電池の充電完了までの残充電量の差を減少させる第1の処理と、
前記第1の処理の後に、複数の蓄電池の充電を完了させる第2の処理と
を実行する蓄電池制御装置。 - 前記第1の処理において、複数の蓄電池の充電完了までの残充電量を、前記第1の処理の開始時点での最小値以下まで減少させる請求項1に記載の蓄電池制御装置。
- 前記第1の処理の実行中の前記蓄電システムの総電圧は、前記蓄電システムの最低許容総電圧以上であり、又は、前記第1の処理の実行中の充電電力制限値は、最低許容充電電力以上である請求項1又は2に記載の蓄電池制御装置。
- 直列に接続された複数の蓄電池と、
各蓄電池をバイパスするバイパス回路と、
前記バイパス回路を制御する蓄電池制御装置と
を備え、
前記蓄電池制御装置は、
充電完了までの残充電量が他の蓄電池に比して少ない蓄電池を優先的に前記バイパス回路によりバイパスすることで、複数の蓄電池の充電完了までの残充電量の差を減少させる第1の処理と、
前記第1の処理の後に、複数の蓄電池の充電を完了させる第2の処理と
を実行する蓄電システム。 - 直列に接続された複数の蓄電池と、各蓄電池をバイパスするバイパス回路とを備える蓄電システムを制御する蓄電池制御装置を用いて実行する蓄電池制御方法であって、
充電完了までの残充電量が他の蓄電池に比して少ない蓄電池を優先的に前記バイパス回路によりバイパスすることで、複数の蓄電池の充電完了までの残充電量の差を減少させる第1の手順と、
前記第1の手順の後に、複数の蓄電池の充電を完了させる第2の手順と
を実行する蓄電池制御方法。
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JP2021041768A JP7395532B2 (ja) | 2021-03-15 | 2021-03-15 | 蓄電池制御装置、蓄電システム、及び蓄電池制御方法 |
CN202210121231.2A CN115085303A (zh) | 2021-03-15 | 2022-02-09 | 蓄电池控制装置、蓄电池系统以及蓄电池控制方法 |
EP22156298.6A EP4060857A1 (en) | 2021-03-15 | 2022-02-11 | Storage battery control device, storage battery system and storage battery control method |
US17/673,765 US20220294235A1 (en) | 2021-03-15 | 2022-02-16 | Storage battery control device, storage battery system and storage battery control method |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013031249A (ja) * | 2011-07-27 | 2013-02-07 | Mitsubishi Motors Corp | バッテリ装置の充電システム |
JP2014112980A (ja) * | 2011-03-25 | 2014-06-19 | Sanyo Electric Co Ltd | バッテリモジュール、バッテリシステム、電源装置、及び、移動体 |
JP2015117951A (ja) * | 2013-12-17 | 2015-06-25 | 矢崎総業株式会社 | 電池充電率推定装置及び電池充電率推定方法 |
JP2017531983A (ja) * | 2014-10-13 | 2017-10-26 | 24エム・テクノロジーズ・インコーポレイテッド24M Technologies, Inc. | 直列電池充電及び形成用のシステム及び方法 |
JP2020072548A (ja) * | 2018-10-31 | 2020-05-07 | 株式会社豊田中央研究所 | 電源装置 |
US20210075230A1 (en) * | 2019-09-10 | 2021-03-11 | Yazaki Corporation | Battery control unit and battery system |
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- 2021-03-15 JP JP2021041768A patent/JP7395532B2/ja active Active
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- 2022-02-09 CN CN202210121231.2A patent/CN115085303A/zh active Pending
- 2022-02-11 EP EP22156298.6A patent/EP4060857A1/en active Pending
- 2022-02-16 US US17/673,765 patent/US20220294235A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014112980A (ja) * | 2011-03-25 | 2014-06-19 | Sanyo Electric Co Ltd | バッテリモジュール、バッテリシステム、電源装置、及び、移動体 |
JP2013031249A (ja) * | 2011-07-27 | 2013-02-07 | Mitsubishi Motors Corp | バッテリ装置の充電システム |
JP2015117951A (ja) * | 2013-12-17 | 2015-06-25 | 矢崎総業株式会社 | 電池充電率推定装置及び電池充電率推定方法 |
JP2017531983A (ja) * | 2014-10-13 | 2017-10-26 | 24エム・テクノロジーズ・インコーポレイテッド24M Technologies, Inc. | 直列電池充電及び形成用のシステム及び方法 |
JP2020072548A (ja) * | 2018-10-31 | 2020-05-07 | 株式会社豊田中央研究所 | 電源装置 |
US20210075230A1 (en) * | 2019-09-10 | 2021-03-11 | Yazaki Corporation | Battery control unit and battery system |
JP2021044918A (ja) * | 2019-09-10 | 2021-03-18 | 矢崎総業株式会社 | 電池制御ユニットおよび電池システム |
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EP4060857A1 (en) | 2022-09-21 |
CN115085303A (zh) | 2022-09-20 |
US20220294235A1 (en) | 2022-09-15 |
JP7395532B2 (ja) | 2023-12-11 |
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