JP7511768B2 - 動力電池の充電方法、充電装置と充電システム - Google Patents
動力電池の充電方法、充電装置と充電システム Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 38
- 238000004146 energy storage Methods 0.000 claims description 430
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- 238000007599 discharging Methods 0.000 claims description 26
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
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- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
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- H02J7/04—Regulation of charging current or voltage
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- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- B60L2240/00—Control parameters of input or output; Target parameters
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- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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Description
N個のエネルギー貯蔵電気キャビネットであってもよく、且つN個のエネルギー貯蔵ユニットにおけるエネルギー貯蔵電池は、電池モジュール又は電池パックであってもよく、電池モジュール又は電池パックは、いずれも複数の電池コアによって直列に接続され、又は並列に接続されて形成されてもよい。
Claims (12)
- 動力電池の充電方法であって、充電装置に用いられ、前記充電装置は、並列に接続されるN個のエネルギー貯蔵ユニットを含み、前記各エネルギー貯蔵ユニットは、エネルギー貯蔵電池と、前記エネルギー貯蔵電池と接続される第一のDC/DCコンバータとを含み、前記充電装置の各充電周期は、前記動力電池を充電する段階と、前記動力電池が前記N個のエネルギー貯蔵ユニットへ放電する段階とを含み、Nは、1よりも大きい正整数であり、
前記充電方法は、
前記放電する段階で、前記各エネルギー貯蔵ユニットの第一のパラメータを取得することと、
前記第一のパラメータに基づき、前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータにより出力される第一の電流を決定することであって、前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータにより出力される第一の電流が、前記各エネルギー貯蔵ユニットにおける前記第一のパラメータに反比例することと、
前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータに第一の制御信号を送信することであって、前記第一の制御信号が、前記第一の電流を出力するように前記第一のDC/DCコンバータを制御することで、前記各エネルギー貯蔵ユニットにおける前記第一のDC/DCコンバータが、前記第一の電流に従って前記動力電池により放出される電力量を受け取るようにするために用いられることとを含む、ことを特徴とする動力電池の充電方法。 - 前記方法は、
前記充電する段階で、前記各エネルギー貯蔵ユニットの前記第一のパラメータを取得することと、
前記第一のパラメータに基づき、前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータにより出力される第二の電流を決定することであって、前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータにより出力される第二の電流が、前記各エネルギー貯蔵ユニットにおける前記第一のパラメータに比例することと、
前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータに第二の制御信号を送信することであって、前記第二の制御信号が、前記第二の電流を出力するように前記第一のDC/DCコンバータを制御することで、前記各エネルギー貯蔵ユニットにおける前記第一のDC/DCコンバータが、前記第二の電流に従って前記動力電池へ充電するようにするために用いられることとをさらに含む、ことを特徴とする請求項1に記載の充電方法。 - 前記各エネルギー貯蔵ユニットの前記第一のパラメータは、
前記各エネルギー貯蔵ユニットのエネルギー貯蔵電池の現在の充電状態SOCと、
前記各エネルギー貯蔵ユニットのエネルギー貯蔵電池の現在の電圧と、
前記各エネルギー貯蔵ユニットの現在の電圧と、のうちの少なくとも一つのパラメータを含む、ことを特徴とする請求項1又は2に記載の充電方法。 - 前記充電装置は、隔離ユニットをさらに含み、前記隔離ユニットは、前記N個のエネルギー貯蔵ユニットと前記動力電池との間に接続され、前記隔離ユニットは、M個の第二のDC/DCコンバータと、前記M個の第二のDC/DCコンバータ間に接続されるスイッチモジュールとを含み、Mは、2以上の正整数であり、
前記充電方法は、
前記M個の第二のDC/DCコンバータを直列に接続するように前記スイッチモジュールを制御することで、前記隔離ユニットが前記動力電池に出力する電圧を、前記N個のエネルギー貯蔵ユニットにより出力される電圧のM倍に等しくすること、又は、
前記M個の第二のDC/DCコンバータを並列に接続するように前記スイッチモジュールを制御することで、前記隔離ユニットが前記動力電池に出力する電流を、前記N個のエネルギー貯蔵ユニットにより出力される電流のM倍に等しくすることをさらに含む、ことを特徴とする請求項1から3のいずれか1項に記載の充電方法。 - 前記充電装置は、AC/DCコンバータをさらに含み、前記AC/DCコンバータは、前記動力電池と交流電源との間に接続され、それによって前記交流電源は、前記AC/DCコンバータを介して前記動力電池へ充電する、ことを特徴とする請求項1から4のいずれか1項に記載の充電方法。
- 動力電池の充電装置であって、並列に接続されるN個のエネルギー貯蔵ユニットを含み、前記各エネルギー貯蔵ユニットは、エネルギー貯蔵電池と、前記エネルギー貯蔵電池と接続される第一のDC/DCコンバータとを含み、前記充電装置の各充電周期は、前記動力電池を充電する段階と、前記動力電池が前記N個のエネルギー貯蔵ユニットへ放電する段階とを含み、Nは、1よりも大きい正整数であり、
前記制御モジュールは、
前記放電する段階で、前記各エネルギー貯蔵ユニットの第一のパラメータを取得すること、
前記第一のパラメータに基づき、前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータにより出力される第一の電流を決定することであって、前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータにより出力される第一の電流が、前記各エネルギー貯蔵ユニットにおける前記第一のパラメータに反比例すること、
前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータに第一の制御信号を送信することであって、前記第一の制御信号が、前記第一の電流を出力するように前記第一のDC/DCコンバータを制御することで、前記各エネルギー貯蔵ユニットにおける前記第一のDC/DCコンバータが、前記第一の電流に従って前記動力電池により放出される電力量を受け取るようにするために用いられることに用いられる、ことを特徴とする動力電池の充電装置。 - 前記制御モジュールはさらに、
前記充電する段階で、前記各エネルギー貯蔵ユニットの前記第一のパラメータを取得すること、
前記第一のパラメータに基づき、前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータにより出力される第二の電流を決定することであって、前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータにより出力される第二の電流が、前記各エネルギー貯蔵ユニットにおける前記第一のパラメータに比例すること、及び、
前記各エネルギー貯蔵ユニットにおける第一のDC/DCコンバータに第二の制御信号を送信することであって、前記第二の制御信号が、前記第二の電流を出力するように前記第一のDC/DCコンバータを制御することで、前記各エネルギー貯蔵ユニットにおける前記第一のDC/DCコンバータが、前記第二の電流に従って前記動力電池へ充電するようにするために用いられることに用いられる、ことを特徴とする請求項6に記載の充電装置。 - 前記各エネルギー貯蔵ユニットの前記第一のパラメータは、
前記各エネルギー貯蔵ユニットのエネルギー貯蔵電池の現在の充電状態SOCと、
前記各エネルギー貯蔵ユニットのエネルギー貯蔵電池の現在の電圧と、
前記各エネルギー貯蔵ユニットの現在の電圧と、のうちの少なくとも一つのパラメータを含む、ことを特徴とする請求項6又は7に記載の充電装置。 - 前記充電装置は、隔離ユニットをさらに含み、前記隔離ユニットは、前記N個のエネルギー貯蔵ユニットと前記動力電池との間に接続され、前記隔離ユニットは、M個の第二のDC/DCコンバータと、前記M個の第二のDC/DCコンバータ間に接続されるスイッチモジュールとを含み、Mは、2以上の正整数であり、
前記制御モジュールはさらに、
前記M個の第二のDC/DCコンバータを直列に接続するように前記スイッチモジュールを制御することで、前記隔離ユニットが前記動力電池に出力する電圧を、前記N個のエネルギー貯蔵ユニットにより出力される電圧のM倍に等しくすること、又は、
前記M個の第二のDC/DCコンバータを並列に接続するように前記スイッチモジュールを制御することで、前記隔離ユニットが前記動力電池に出力する電流を、前記N個のエネルギー貯蔵ユニットにより出力される電流のM倍に等しくすることに用いられる、ことを特徴とする請求項6から8のいずれか1項に記載の充電装置。 - 前記充電装置は、AC/DCコンバータをさらに含み、前記AC/DCコンバータは、前記動力電池と交流電源との間に接続され、それによって前記交流電源は、前記AC/DCコンバータを介して前記動力電池へ充電する、ことを特徴とする請求項6から9のいずれか1項に記載の充電装置。
- 請求項1から5のいずれか1項に記載の充電方法を実行するためのプロセッサを含む、EMS。
- 充電システムであって、
動力電池と、
請求項6から10のいずれか1項に記載の充電装置とを含み、前記充電装置は、前記動力電池へ充電するために用いられ、前記各充電周期は、前記動力電池を充電する段階と、前記動力電池が放電する段階とを含む、ことを特徴とする充電システム。
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