JP5933689B2 - 電気エネルギを供給する方法および装置 - Google Patents
電気エネルギを供給する方法および装置 Download PDFInfo
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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Description
− 少なくとも1つの充電ステーションは、状態変化を充電システムに通知する、
− この充電システムは、負荷分散を求め、(少なくとも1つの)充電ステーションに通知する、
− この(少なくとも1つの)充電ステーションは、上記の通知された負荷分散にしたがって上記の電気エネルギを供給する。
− あらかじめ設定された最大許容容量、
− 重み付けファクタまたは優先度、
− 殊に充電過程毎またはベースステーション毎または電動車両毎の最大許容充電電流、のうちの少なくとも1つが含まれている。
− 充電ステーションのあらかじめ設定された最大許容容量、
− ケーブルのあらかじめ設定された最大許容容量、
− トランスのあらかじめ設定された最大許容容量、
− ローカルネットステーションのあらかじめ設定された最大許容容量、
− 取り決めまたは契約にしたがってあらかじめ設定された最大許容容量、
− 電動車両のあらかじめ設定された最大許容容量、
− エネルギ源のあらかじめ設定された最大許容容量、
− (例えば、複数のエネルギ源の集合体を含む)仮想発電所(Virtual Power Plant)のあらかじめ設定された最大許容容量、のうちの少なくとも1つが含まれている。
− 状態変化を充電システムに通知可能であり、
− 上記の充電システムによって求めた負荷分散を受信するか、または殊にローカルに準備し、
− この負荷分散にしたがって上記の電気エネルギを供給可能である
ように構成されている。
− 各充電セッションは、ID(識別子またはラベルとも称される)により、充電装置(例えば充電ステーション)に対応付けることができ、例えば、ユーザまたは充電すべき車両の契約タイプに基づいて、1つまたは複数のグループに対応付けることができる、
− 1つのグループに対して容量を、例えば充電容量をあらかじめ設定するか別の手法で求めることができる、
− 1つの充電過程に対するまたは充電過程毎の充電電流の制限をあらかじめ設定することができる、
− 各充電過程は、例えば、基本充電電流または最小充電によって行うことができる、
− 充電過程毎にこの充電過程の優先度についての重み付けファクタを求めることができる。
− 電動車両と充電ステーションとの間のケーブルの最大許容充電容量、
− 充電ステーションの最大許容充電容量、および
− 充電ステーションと上記の分岐部との間の最大許容充電容量
によって制限されるのである。
− エコロジカルな電流で充電すべきであるグループGoek
Goek={1,3}
− 好適電流で充電すべきであるグループGguenst
Gguenst={2,4}
− 分岐部117において充電すべきグループGAbg1
GAbg1={1,2}
− 分岐部118において充電すべきグループGAblg2
GAbg2={ }
− 分岐部119において充電すべきグループGAblg3
GAbg3={3,4}
− 上記のトランスにおいて充電される(すべき)グループGTrafo
GTrafo={1,2,3,4}
が得られるのである。
− energyRequest():別の(新たな)充電過程について上記の負荷管理部に通知する;
− sessionEnd():充電過程の終了;
− sessionUpdate():充電過程の状態値の更新;
− energySet():充電システムによってパラメタITargetを目標値として設定する。
このシナリオでは、全体容量Cをあらかじめ設定する。さらにここではただ1つの個別グループがあり、かつ、充電過程の個数nは既知である。この負荷分散に対する目標値ITargetは、
ITarget=C/n
となる。
(a) 充電ステーションは、例えば上記の関数energyRequest(),sessionEnd(),sessionUpdate()によって上記の(中央の)充電システムに状態変化について通知する。
(b) つぎのステップにおいて上記の充電システムは、各状態変化時に、負荷分散を求めて、これを上記の(複数の)充電ステーションに通知する。
このシナリオにおいても全体容量Cをあらかじめ設定する。ここではただ1つのグループがあり、充電過程の個数nは既知である。1つの充電過程s∈Sに対して、優先度付けのための重み付けファクタwsを定める。上記の負荷分散は、ベクトル
ITarget=(Is Target,s∈S)
の形で決定することができる。
このシナリオにおいても全体容量Cをあらかじめ設定する。ここではただ1つの個別グループがあり、充電過程の個数nは既知である。上記の充電電流は、充電過程s毎に個別に最大充電電流IMAXに制限することができる、すなわち、
IMAX=(Is MAX,s∈S)
である。
各充電過程は、充電ステーションの識別子により、また契約タイプにより、相異なるグループに対応付けることができる。グループ毎に最大容量CGruppeIDを定めることができる。充電過程毎に充電電流を関係式
IMAX=(IS MAX,s∈S)
にしたがって制限することができる。さらに各充電ステーションには少なくとも1つのベース電流IBasisが含まれると定めることができる。1つの充電過程s∈Sに対し、優先度付けのための重み付けファクタwsを定める。
R・ITarget ≦ C,
IS Target ≧ IBasis,
を有しており、ただしRは、上記の複数の充電過程およびそれらの容量制限を有するマトリクスを表し、Cは、すべての容量制限を有するベクトルを表し、ITargetは上記の負荷分散ベクトルを表す。
− エコロジカルな電流に対して:Coek=45;
− 好適電流に対して:Cguenst=200;
− トランスに対して:CTrafo=100;
− 分岐部117に対して:CAbg1=40;
− 分岐部118に対して:CAbg2=100;
− 分岐部119に対して:CAbg3=100;
である。
分散型負荷管理は、相異なる手法で行うことができる。以下では、例示的に2つの例を説明する。
ここでは、例えば1つのコンポーネントにおいて実行可能な複数の関数である充電過程または充電ステーションにより、上記の負荷分散を求める1つのマスタを選択することができる。以下で例示的に仮定するのは、複数の充電ステーションがピア(通信を行うコンポーネントまたは関数)として動作し、それ自体で組織化されていることである。このアプローチは、1つまたは複数のコンポーネント上で実行可能である関数に対しても同様に可能である。
ここでは、集中型インスタンスなしに調整が行われる。上記の複数の充電ステーションは、P2P(Peer-to-Peer)ネットワークを構成し、他の充電ステーション(Peer)と通信する。これらの充電ステーションは、例えば、ランダム(または疑似ランダム)に、またはあらかじめ設定された方式にしたがって選択される。
図2には、「マスタの選択」のアプローチを可能するないしはサポートする分散型負荷管理のアーキテクチャの例が示されている。
− 新しい問い合わせに対してenergyRequest(),
− 充電過程の終了に対してsessionEnd(),
− 状態値の更新に対してsessionUpdate(),
− energySet()による充電ステーションの目標値の設定
が使用される。
以下では、例示的に複数のエラーのケースを説明し、相応する1つずつのエラー処理を提案する。
マスタの故障はクリティカルなエラーであり、分散型シナリオにおいて機能を継続するためには、相応するエラー処理が必要である。なぜならばマスタがなければ、負荷分散ができないからである。
(i) 上記のマスタが故障する前にバックアップアップマスタを選択し、負荷分散を冗長に記憶する。
(ii) マスタの故障を識別する。
(iii) 問い合わせを行う複数の充電ステーションの中から新たなマスタを選択する。
マスタでない充電ステーションが故障した場合、2つの状況を区別することできる。すなわち、
(i) 故障した充電ステーションは、アクティブな充電過程を有していなかった、
(ii) 故障した充電ステーションは、アクティブな充電過程中であった。
前のマスタが故障の後、再び起動される場合、有利には、コンフリクトおよび/または不整合が発生しないことを保証する必要がある。
すべての充電ステーションにわたって上記のマスタを一意に求めることができるようにするため、上で説明したピア・リストを使用する。これに相応してこのピア・リストが整合性を有するように維持しなければならない。
Claims (14)
- 電気エネルギを供給する方法において、
− 少なくとも1つの充電ステーションが、状態変化を充電システムに通知し、
− 前記充電システムは、前記状態変化に基づいて負荷分散を求め、求めた負荷分散を前記少なくとも1つの充電ステーションに通知し、
− 前記少なくとも1つの充電ステーションにより、前記通知された負荷分散にしたがって前記電気エネルギを供給し、
− 前記充電システムをマスタ充電ステーションによって構成し、
− 少なくとも1つのバックアップ・マスタ充電ステーションを決定する、
方法において、
前記マスタ充電ステーションは、各状態変化を前記少なくとも1つのバックアップ・マスタ充電ステーションに通知し、当該少なくとも1つのバックアップ・マスタ充電ステーションは、前記マスタ充電ステーションから通知された前記状態変化に基づいて前記負荷分散を求める、
ことを特徴とする方法。 - 請求項1に記載の方法において、
少なくとも1つの副条件、および、接続されたまたはアクティブな充電ステーションの個数に基づいて前記負荷分散を求める、
ことを特徴とする方法。 - 請求項2に記載の方法において、
前記副条件には、以下の設定値のうちの少なくとも1つ、すなわち
− あらかじめ設定された最大許容容量、
− 重み付けファクタまたは優先度、
− 殊に充電過程毎または充電ステーション毎または電動車両毎の最大許容充電電流、のうちの少なくとも1つが含まれている、
ことを特徴とする方法。 - 請求項3に記載の方法において、
副条件としてあらかじめ設定される前記最大許容容量には、以下の選択肢のうちの少なくとも1つ、すなわち、
− 前記充電ステーションのあらかじめ設定された最大許容容量、
− ケーブルのあらかじめ設定された最大許容容量、
− トランスのあらかじめ設定された最大許容容量、
− ローカルネットステーションのあらかじめ設定された最大許容容量、
− 取り決めまたは契約にしたがってあらかじめ設定された最大許容容量、
− 電動車両のあらかじめ設定された最大許容容量、
− エネルギ源のあらかじめ設定された最大許容容量、
− 仮想発電所(Virtual Power Plant)(複数のエネルギ源の集合体)のあらかじめ設定された最大許容容量、のうちの少なくとも1つが含まれている、
ことを特徴とする方法。 - 請求項1から4までのいずれか1項に記載の方法において、
前記充電システムは、中央充電システムである、
ことを特徴とする方法。 - 請求項1から5までのいずれか1項に記載の方法において、
前記マスタ充電ステーションを識別子によって求める、
ことを特徴とする方法。 - 請求項1から6までのいずれか1項に記載の方法において、
中央コンポーネントによって前記充電ステーションのコンフィギュレーションまたはパラメタ設定を行う、
ことを特徴とする方法。 - 請求項1から7までのいずれか1項に記載の方法において、
前記マスタ充電ステーションにより、求めた前記負荷分散を前記少なくとも1つのバックアップ・マスタ充電ステーションに通知する、
ことを特徴とする方法。 - 請求項1から8までのいずれか1項に記載の方法において、
前記マスタ充電ステーションが故障した際にはつぎのバックアップ・マスタ充電ステーションを起動する、
ことを特徴とする方法。 - 請求項1から9までのいずれか1項に記載の方法において、
再起動された前のマスタ充電ステーションを、当面は再度マスタ充電ステーションとして利用しない、
ことを特徴とする方法。 - 請求項1から4までのいずれか1項に記載の方法において、
前記充電システムは、各充電ステーションによって分散型に構成され、
別の複数の充電ステーションの情報またはメッセージによって求めた推定値に基づき、前記充電ステーションによって前記電気エネルギを調整する、
ことを特徴とする方法。 - 請求項1から11までのいずれか1項に記載の方法において、
供給される前記電気エネルギによって少なくとも1つの電動車両を充電する、
ことを特徴とする方法。 - 処理ユニットを有する、電気エネルギを供給する装置において、
前記装置は、
− 少なくとも1つの充電ステーションの状態変化を充電システムに通知可能であり、
− 前記状態変化に基づいて、前記充電システムによって求められた負荷分散を受信するか、またはローカルに準備し、
− 前記負荷分散にしたがって前記電気エネルギを供給可能であり、
− 前記充電システムは、マスタ充電ステーションによって構成されており、
− 少なくとも1つのバックアップ・マスタ充電ステーションが決定される、
ように構成されている、
装置において、
前記マスタ充電ステーションは、各状態変化を前記少なくとも1つのバックアップ・マスタ充電ステーションに通知し、当該少なくとも1つのバックアップ・マスタ充電ステーションは、前記マスタ充電ステーションから通知された前記状態変化に基づいて前記負荷分散を求める、
ことを特徴とする装置。 - 請求項13に記載の装置において、
該装置は、電動車両を充電するための充電ステーションとして構成されている、
ことを特徴とする装置。
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US9283863B2 (en) | 2016-03-15 |
CN103502042A (zh) | 2014-01-08 |
US20140084874A1 (en) | 2014-03-27 |
CN103502042B (zh) | 2017-10-27 |
JP2014519300A (ja) | 2014-08-07 |
WO2012149965A1 (de) | 2012-11-08 |
EP2665618B1 (de) | 2020-11-04 |
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