JP5672186B2 - 電力供給システム - Google Patents
電力供給システム Download PDFInfo
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 18
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
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Description
太陽光によって発電を行う太陽光発電手段(16)と、
建物の配線に接続され、太陽光発電手段によって発電された太陽光電力および電力系統から供給される供給電力を蓄電可能であるとともに、蓄電された電力を配線へ放電可能な蓄電手段(14)と、
電力系統から供給される供給電力の消費を制御するとともに、太陽光電力の消費を、蓄電手段への蓄電による消費と、電気負荷による消費と、電力系統への逆潮流による消費とで制御する電力制御手段(18)と、を含み、
蓄電手段は、車両に搭載され、建物の配線に接続されている場合には、供給電力を蓄電可能であり、蓄電された電力を配線へ放電可能である車載蓄電装置(21)を含み、
電力制御手段は、
予測期間における電気負荷の予測電力量の推移を示す消費量予測データを、電気負荷の使用履歴に基づいて算出し、
予測期間における太陽光発電手段の予測発電量の推移を示す発電量予測データを、予測期間の天候予測データを用いて算出し、
消費量予測データ、発電量予測データおよび車両の使用履歴に基づいて算出される車載蓄電装置が配線に電気的に接続されている期間に基づいて、予測期間における車載蓄電装置を含む蓄電手段の蓄電および放電の推移を示す充放電スケジュールを、蓄電手段の充放電電力を決定するために使用する評価指標が所定の値となるように、混合整数計画問題に定式化して算出し、
算出された充放電スケジュールに従って、予測期間における蓄電手段の充放電電力を制御することを特徴とする電力供給システムである。
電力制御手段は、
制御周期毎に、現在時刻から予測期間の充放電スケジュールを算出し、
算出された予測期間における充放電スケジュールのうち、最初の1周期分の充放電スケジュールに従って、蓄電手段の充放電電力を制御することを特徴とする。
電気負荷の使用履歴が記憶されている記憶手段と、をさらに含み、
電力制御手段は、
消費量予測データを、記憶手段に記憶されている電気負荷の使用履歴に基づいて算出し、
発電量予測データを、取得手段によって取得された天候予測データを用いて算出することを特徴とする。
本発明の第1実施形態に関して、図1〜図15を用いて説明する。図1は、第1実施形態における電力供給システムの概略構成を示す模式図である。電力供給システム10は、電力供給契約に基づいて電力供給元の電力系統から供給される供給電力を、建物11内の交流電力線12に接続された電気負荷である一般負荷13に給電可能なシステムである。
以上、本発明の好ましい実施形態について説明したが、本発明は上述した実施形態に何ら制限されることなく、本発明の主旨を逸脱しない範囲において種々変形して実施することが可能である。
11…建物
12…交流電力線(配線)
13…一般負荷(電気負荷)
14…蓄電ユニット(蓄電手段)
15…充電スタンド
15a…充放電ケーブル
15b…充放電コネクタ
16…太陽光発電機(太陽光発電手段)
17…モニタリング装置
18…統合電力制御装置(電力制御手段,取得手段)
19…操作表示器
19a…表示部
19b…操作スイッチ
20…車両
21…車載蓄電装置
40…センター
50…インターネット網
Claims (5)
- 電力供給契約に基づいて電力供給元の電力系統から建物(11)に供給される供給電力を、配線(12)に接続された電気負荷(13)および蓄電手段(14)に給電可能な電力供給システム(10)であって、
太陽光によって発電を行う太陽光発電手段(16)と、
前記建物の前記配線に接続され、前記太陽光発電手段によって発電された太陽光電力および前記電力系統から供給される前記供給電力を蓄電可能であるとともに、蓄電された電力を前記配線へ放電可能な蓄電手段(14)と、
前記電力系統から供給される前記供給電力の消費を制御するとともに、前記太陽光電力の消費を、前記蓄電手段への蓄電による消費と、前記電気負荷による消費と、前記電力系統への逆潮流による消費とで制御する電力制御手段(18)と、を含み、
前記蓄電手段は、車両に搭載され、前記建物の前記配線に接続されている場合には、前記供給電力を蓄電可能であり、蓄電された電力を前記配線へ放電可能である車載蓄電装置(21)を含み、
前記電力制御手段は、
予測期間における前記電気負荷の予測電力量の推移を示す消費量予測データを、前記電気負荷の使用履歴に基づいて算出し、
前記予測期間における前記太陽光発電手段の予測発電量の推移を示す発電量予測データを、前記予測期間の天候予測データを用いて算出し、
前記消費量予測データ、前記発電量予測データおよび前記車両の使用履歴に基づいて算出される前記車載蓄電装置が前記配線に電気的に接続されている期間に基づいて、前記予測期間における前記車載蓄電装置を含む前記蓄電手段の蓄電および放電の推移を示す充放電スケジュールを、前記蓄電手段の充放電電力を決定するために使用する評価指標が所定の値となるように、混合整数計画問題に定式化して算出し、
算出された前記充放電スケジュールに従って、前記予測期間における前記蓄電手段の充放電電力を制御することを特徴とする電力供給システム。 - 前記混合整数計画問題は、論理変数を用いた線形不等式制約によって条件分岐が表現されて定式化されていることを特徴とする請求項1に記載の電力供給システム。
- 前記混合整数計画問題は、前記蓄電手段に蓄電されている電力の逆潮流を防ぐ制約条件を含めて定式化されていることを特徴とする請求項1または2に記載の電力供給システム。
- 前記予測期間は、予め設定される制御周期のn周期分の期間であり、
前記電力制御手段は、
前記制御周期毎に、現在時刻から前記予測期間の前記充放電スケジュールを算出し、
算出された前記予測期間における前記充放電スケジュールのうち、最初の1周期分の前記充放電スケジュールに従って、前記蓄電手段の充放電電力を制御することを特徴とする請求項1〜3のいずれか1つに記載の電力供給システム。 - 前記天候予測データを取得する取得手段(18)と、
前記電気負荷の使用履歴が記憶されている記憶手段と、をさらに含み、
前記電力制御手段は、
前記消費量予測データを、前記記憶手段に記憶されている前記電気負荷の使用履歴に基づいて算出し、
前記発電量予測データを、前記取得手段によって取得された前記天候予測データを用いて算出することを特徴とする請求項1〜4のいずれか1つに記載の電力供給システム。
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