JP2017169313A - 蓄電装置、機器及び制御方法 - Google Patents
蓄電装置、機器及び制御方法 Download PDFInfo
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Abstract
【解決手段】蓄電装置は、第1蓄電器と、第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器と、第1蓄電器及び第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部と、変換部を制御する制御部とを備える。制御部は、第1蓄電器が継続して放電する第1態様と、第2蓄電器が電力系統における周波数の安定を目的とする間欠して充放電する第2態様と、の少なくとも一方を電力系統との間で行うよう、変換部を制御する。
【選択図】図7
Description
第1蓄電器(例えば、後述の実施形態での高容量型バッテリES−E)と、
前記第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器(例えば、後述の実施形態での高出力型バッテリES−P)と、
前記第1蓄電器及び前記第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部(例えば、後述の実施形態での双方向充電器101)と、
前記変換部を制御する制御部(例えば、後述の実施形態でのECU111)と、を備え、
前記制御部は、前記第1蓄電器が継続して放電する第1態様と、前記第2蓄電器が前記電力系統における周波数の安定を目的に間欠して充放電する第2態様と、の少なくとも一方を前記電力系統との間で行うよう、前記変換部を制御する、蓄電装置である。
第1蓄電器(例えば、後述の実施形態での高容量型バッテリES−E)と、
前記第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器(例えば、後述の実施形態での高出力型バッテリES−P)と、
前記第1蓄電器及び前記第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部(例えば、後述の実施形態での双方向充電器101)と、
前記変換部を制御する制御部(例えば、後述の実施形態でのECU111)と、
前記制御部は、前記第1蓄電器が前記第1蓄電器の特性に適した継続して放電する第1態様と、前記第2蓄電器が前記第2蓄電器の特性に適した間欠して充放電する第2態様と、の少なくとも一方を前記電力系統との間で行うよう、前記変換部を制御する、蓄電装置である。
前記第2態様は、前記電力系統における周波数の安定を目的とした充放電である。
前記第1態様は、前記電力系統における需給均衡の維持を目的とした放電である。
前記第1態様は、前記電力系統における電力需要の増加に伴い、需給均衡を維持するために必要とされる前記電力系統への電力供給を目的とした放電である。
前記第1態様は、前記電力系統への瞬動予備力の供給を目的とした放電である。
前記制御部は、前記第1態様及び前記第2態様のいずれも前記電力系統との間で実行可能に前記変換部を制御する。
前記第1態様は前記第1蓄電器のみが行う。
前記第2態様は前記第2蓄電器のみが行う。
前記第2蓄電器の充電率を検知する検知部(例えば、後述の実施形態での電圧センサ105e,105p、電流センサ107e,107p、ECU111)と、
前記第1蓄電器と前記第2蓄電器の間の電流経路を構成する充放電回路(例えば、後述の実施形態でのVCU103,203、スイッチ部109と、を備え、
前記制御部は、
前記第2蓄電器の充電率と前記第2蓄電器の劣化因子との関係に基づき、
前記第2態様を行う前の前記第2蓄電器の充電率から所定値を加算又は減算した値に対応する前記劣化因子である想定劣化因子がしきい値以上になる場合は、前記想定劣化因子が前記しきい値未満になる前記第1蓄電器と前記第2蓄電器の間の充放電を行うよう、前記充放電回路を制御する。
前記制御部は、前記想定劣化因子が前記しきい値以上になる場合は、前記第2蓄電器から前記第1蓄電器への放電を行うよう、前記充放電回路を制御する。
前記所定値は、前記電力系統における周波数の安定を目的とした充放電を前記第2蓄電器が行う際の、前記第2蓄電器の充電率の変化量に基づき設定される。
前記制御部は、前記第2態様より前記第1態様を優先して行うよう、前記変換部を制御する。
前記蓄電装置における前記電力系統との間の充放電を管理するサーバ装置(例えば、後述の実施形態でのアグリゲータ17)から送信された指令を受信する受信部(例えば、後述の実施形態でのデジタル通信部123)と、
前記制御部は、前記受信部が前記第1態様の実行の指令及び前記第2態様の実行の指令の双方を受信した場合、前記第2態様より前記第1態様を優先して行うよう、前記変換部を制御する。
第1蓄電器(例えば、後述の実施形態での高容量型バッテリES−E)と、
前記第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器(例えば、後述の実施形態での高出力型バッテリES−P)と、
前記第1蓄電器及び前記第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部(例えば、後述の実施形態での双方向充電器101)と、
前記変換部を制御する制御部(例えば、後述の実施形態でのECU111)と、を備えた蓄電装置が行う制御方法であって、
前記制御部は、前記第1蓄電器が継続して放電する第1態様と、前記第2蓄電器が前記電力系統における周波数の安定を目的に間欠して充放電する第2態様と、の少なくとも一方を前記電力系統との間で行うよう、前記変換部を制御する、制御方法である。
第1蓄電器(例えば、後述の実施形態での高容量型バッテリES−E)と、
前記第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器(例えば、後述の実施形態での高出力型バッテリES−P)と、
前記第1蓄電器及び前記第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部(例えば、後述の実施形態での双方向充電器101)と、
前記変換部を制御する制御部(例えば、後述の実施形態でのECU111)と、を備えた蓄電装置が行う制御方法であって、
前記制御部は、前記第1蓄電器が前記第1蓄電器の特性に適した継続して放電する第1態様と、前記第2蓄電器が前記第2蓄電器の特性に適した間欠して充放電する第2態様と、の少なくとも一方を前記電力系統との間で行うよう、前記変換部を制御する、制御方法である。
3 PDU
11 発電所
12 送電網
13 電力需要家
14 外部電源装置
15 電動車両
16 通信網
17 アグリゲータ
18 ホームゲートウェイ
21 ケーブル
22 コネクタ
23 デジタル通信部
100 蓄電装置
101 双方向充電器
103,203 VCU
105e,105p 電圧センサ
107e,107p 電流センサ
109 スイッチ部
111 ECU
121 インレット
123 デジタル通信部
125 無線部
ES−E 高容量型バッテリ
ES−P 高出力型バッテリ
Claims (17)
- 第1蓄電器と、
前記第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器と、
前記第1蓄電器及び前記第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部と、
前記変換部を制御する制御部と、を備え、
前記制御部は、前記第1蓄電器が継続して放電する第1態様と、前記第2蓄電器が前記電力系統における周波数の安定を目的に間欠して充放電する第2態様と、の少なくとも一方を前記電力系統との間で行うよう、前記変換部を制御する、蓄電装置。 - 第1蓄電器と、
前記第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器と、
前記第1蓄電器及び前記第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部と、
前記変換部を制御する制御部と、を備え、
前記制御部は、前記第1蓄電器が前記第1蓄電器の特性に適した継続して放電する第1態様と、前記第2蓄電器が前記第2蓄電器の特性に適した間欠して充放電する第2態様と、の少なくとも一方を前記電力系統との間で行うよう、前記変換部を制御する、蓄電装置。 - 請求項2に記載の蓄電装置であって、
前記第2態様は、前記電力系統における周波数の安定を目的とした充放電である、蓄電装置。 - 請求項1から3のいずれか1項に記載の蓄電装置であって、
前記第1態様は、前記電力系統における需給均衡の維持を目的とした放電である、蓄電装置。 - 請求項1から3のいずれか1項に記載の蓄電装置であって、
前記第1態様は、前記電力系統における電力需要の増加に伴い、需給均衡を維持するために必要とされる前記電力系統への電力供給を目的とした放電である、蓄電装置。 - 請求項1から3のいずれか1項に記載の蓄電装置であって、
前記第1態様は、前記電力系統への瞬動予備力の供給を目的とした放電である、蓄電装置。 - 請求項1から6のいずれか1項に記載の蓄電装置であって、
前記制御部は、前記第1態様及び前記第2態様のいずれも前記電力系統との間で実行可能に前記変換部を制御する、蓄電装置。 - 請求項1から7のいずれか1項に記載の蓄電装置であって、
前記第1態様は前記第1蓄電器のみが行う、蓄電装置。 - 請求項1から8のいずれか1項に記載の蓄電装置であって、
前記第2態様は前記第2蓄電器のみが行う、蓄電装置。 - 請求項1から9のいずれか1項に記載の蓄電装置であって、
前記第2蓄電器の充電率を検知する検知部と、
前記第1蓄電器と前記第2蓄電器の間の電流経路を構成する充放電回路と、を備え、
前記制御部は、
前記第2蓄電器の充電率と前記第2蓄電器の劣化因子との関係に基づき、
前記第2態様を行う前の前記第2蓄電器の充電率から所定値を加算又は減算した値に対応する前記劣化因子である想定劣化因子がしきい値以上になる場合は、前記想定劣化因子が前記しきい値未満になる前記第1蓄電器と前記第2蓄電器の間の充放電を行うよう、前記充放電回路を制御する、蓄電装置。 - 請求項10に記載の蓄電装置であって、
前記制御部は、前記想定劣化因子が前記しきい値以上になる場合は、前記第2蓄電器から前記第1蓄電器への放電を行うよう、前記充放電回路を制御する、蓄電装置。 - 請求項10又は11に記載の蓄電装置であって、
前記所定値は、前記電力系統における周波数の安定を目的とした充放電を前記第2蓄電器が行う際の、前記第2蓄電器の充電率の変化量に基づき設定される、蓄電装置。 - 請求項1から12のいずれか1項に記載の蓄電装置であって、
前記制御部は、前記第2態様より前記第1態様を優先して行うよう、前記変換部を制御する、蓄電装置。 - 請求項13に記載の蓄電装置であって、
前記蓄電装置における前記電力系統との間の充放電を管理するサーバ装置から送信された指令を受信する受信部と、
前記制御部は、前記受信部が前記第1態様の実行の指令及び前記第2態様の実行の指令の双方を受信した場合、前記第2態様より前記第1態様を優先して行うよう、前記変換部を制御する、蓄電装置。 - 請求項1から14のいずれか1項に記載の蓄電装置を有する、機器。
- 第1蓄電器と、
前記第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器と、
前記第1蓄電器及び前記第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部と、
前記変換部を制御する制御部と、を備えた蓄電装置が行う制御方法であって、
前記制御部は、前記第1蓄電器が継続して放電する第1態様と、前記第2蓄電器が前記電力系統における周波数の安定を目的に間欠して充放電する第2態様と、の少なくとも一方を前記電力系統との間で行うよう、前記変換部を制御する、制御方法。 - 第1蓄電器と、
前記第1蓄電器に比べて、出力重量密度が優れ、かつ、エネルギー重量密度が劣る第2蓄電器と、
前記第1蓄電器及び前記第2蓄電器の少なくとも一方と外部の電力系統の間で授受される電力の変換を行う変換部と、
前記変換部を制御する制御部と、を備えた蓄電装置が行う制御方法であって、
前記制御部は、前記第1蓄電器が前記第1蓄電器の特性に適した継続して放電する第1態様と、前記第2蓄電器が前記第2蓄電器の特性に適した間欠して充放電する第2態様と、の少なくとも一方を前記電力系統との間で行うよう、前記変換部を制御する、制御方法。
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