JP6587522B2 - 電圧・無効電力制御装置、方法、および電圧・無効電力制御システム - Google Patents
電圧・無効電力制御装置、方法、および電圧・無効電力制御システム Download PDFInfo
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Description
[数1]
dV(t)=A*dQ(t)+B (1)
図5は、実施例1における補正関数の他の一例を示す図であり、有効電力の差分に応じた電圧目標値の補正関数を示す図である。図5において、複数の時間断面のローカル系統112の監視点210に関わる最適潮流計算時と機器制御時での有効電力の差分dPに応じた電圧目標値の変化量dVを最小二乗法等で線形関数に同定している。
101:中央制御手段
102:最適潮流計算手段
DB1:結果データベース
104:入力装置
105:出力装置
DB2:過去履歴潮流データベース
DB3:全体系統データベース
DB4:ローカル系統データベース
109:ローカル制御装置
110:機器制御装置
111:全体系統
112:ローカル系統
210:監視点
114:分路リアクトル
115:電力コンデンサ
116:負荷時タップ切替器付変圧器
117:自動電圧調整器付発電機
Claims (9)
- 電力系統を適宜に分割したローカル系統に監視点を設定し、前記ローカル系統は前記監視点の電圧・無効電力を調整可能な電圧・無効電力制御機器を備えている電力系統に適用される電圧・無効電力制御システムであって、
前記電力系統の全体系統データを用いた最適潮流計算に基づいて、前記ローカル系統の前記監視点の電圧・無効電力の制御目標値を設定するとともに、前記電力系統の状態の過去履歴情報を用いて、前記制御目標値を前記監視点に関わる電力系統の状態変化に伴い補正する補正関数を生成し、前記制御目標値と、少なくとも1つ以上の前記補正関数を出力する中央制御手段と、
該中央制御手段から得た前記制御目標値が、前記ローカル系統の系統データと相違するときに前記補正関数を用いて前記制御目標値を達成するに必要な前記電圧・無効電力制御機器の制御量を算出するローカル制御装置と、
該ローカル制御装置からの制御量に応じて前記電圧・無効電力制御機器を制御する機器制御装置を含み、
前記補正関数は、最適潮流計算時と電圧・無効電力制御機器制御時での制御量の差分と、最適潮流計算時と電圧・無効電力制御機器制御時での制御目標値の差分についての関数であることを特徴とする電圧・無効電力制御システム。 - 請求項1に記載の電圧・無効電力制御システムであって、
前記ローカル系統は、前記監視点の電圧・無効電力を調整可能な複数種類の電圧・無効電力制御機器を備えており、前記中央制御手段は前記電圧・無効電力制御機器の種類に応じた複数の前記補正関数を出力することを特徴とする電圧・無効電力制御システム。 - 請求項1または請求項2に記載の電圧・無効電力制御システムであって、
前記ローカル制御装置は、入力した前記監視点の電圧・無効電力についての前記制御目標値が、前記全体系統データを用いた最適潮流計算と、前記ローカル制御装置による制御実行時で相違する値であるときに、前記補正関数を用いて前記制御目標値を達成するに必要な前記電圧・無効電力制御機器の制御量を算出することを特徴とする電圧・無効電力制御システム。 - 請求項1から請求項3のいずれか1項に記載の電圧・無効電力制御システムであって、
前記補正関数は、前記制御目標値と前記電圧・無効電力制御機器の制御量の関係を定めたものであることを特徴とする電圧・無効電力制御システム。 - 請求項1から請求項4のいずれか1項に記載の電圧・無効電力制御システムであって、
前記補正関数は、前記制御目標値と前記電圧・無効電力制御機器の制御量の関係を定めたものであるとともに、前記制御量は前記電圧・無効電力制御機器における無効電力、有効電力、電力損失、変圧器タップ位置、調相機器の投入台数についてのものであり、その1つ以上が前記中央制御手段により得られることを特徴とする電圧・無効電力制御システム。 - 電力系統を適宜に分割したローカル系統に監視点を設定し、前記ローカル系統は前記監視点の電圧・無効電力についての制御目標値に従い調整可能な電圧・無効電力制御機器を備えている電力系統に適用される電圧・無効電力制御装置であって、
電圧・無効電力制御装置は、前記電力系統の全体系統データを用いた最適潮流計算に基づいて、前記ローカル系統の前記監視点の電圧・無効電力の制御目標値を設定するとともに、前記電力系統の状態の過去履歴情報を用いて、前記制御目標値を前記監視点に関わる電力系統の状態変化に伴い補正する補正関数を生成し、前記制御目標値と、少なくとも1つ以上の前記補正関数を出力する中央制御手段により構成されており、
電圧・無効電力制御装置が与える前記制御目標値と前記補正関数により前記電圧・無効電力制御機器を制御するとともに、
前記補正関数は、最適潮流計算時と電圧・無効電力制御機器制御時での制御量の差分と、最適潮流計算時と電圧・無効電力制御機器制御時での制御目標値の差分についての関数であることを特徴とする電圧・無効電力制御装置。 - 電力系統を適宜に分割したローカル系統に監視点を設定し、前記ローカル系統は前記監視点の電圧・無効電力についての制御目標値に従い作動する機器制御装置により調整可能な電圧・無効電力制御機器を備えている電力系統に適用される電圧・無効電力制御装置であって、
電圧・無効電力制御装置は、前記電力系統の全体系統データを用いた最適潮流計算に基づいて、前記ローカル系統の前記監視点の電圧・無効電力の制御目標値を設定するとともに、前記電力系統の状態の過去履歴情報を用いて、前記制御目標値を前記監視点に関わる電力系統の状態変化に伴い補正する補正関数を生成し、前記制御目標値と、少なくとも1つ以上の前記補正関数を出力する中央制御手段と、該中央制御手段から得た前記制御目標値が、前記ローカル系統の系統データと相違するときに前記補正関数を用いて前記制御目標値を達成するに必要な前記電圧・無効電力制御機器の制御量を算出するローカル制御装置により構成されているとともに、
前記補正関数は、最適潮流計算時と電圧・無効電力制御機器制御時での制御量の差分と、最適潮流計算時と電圧・無効電力制御機器制御時での制御目標値の差分についての関数であることを特徴とする電圧・無効電力制御装置。 - 電力系統を適宜に分割したローカル系統に監視点を設定し、前記ローカル系統は前記監視点の電圧・無効電力についての制御目標値に従い作動する機器制御装置により調整可能な電圧・無効電力制御機器を備えている電力系統に適用される電圧・無効電力制御装置であって、
電圧・無効電力制御装置は、前記電力系統の全体系統データを用いた最適潮流計算に基づいて、前記ローカル系統の前記監視点の電圧・無効電力の制御目標値と、前記電力系統の状態の過去履歴情報を用いて、前記制御目標値を前記監視点に関わる電力系統の状態変化に伴い補正する補正関数とを得て、前記制御目標値が、前記ローカル系統の系統データと相違するときに前記補正関数を用いて前記制御目標値を達成するに必要な前記電圧・無効電力制御機器の制御量を算出するローカル制御装置と、該ローカル制御装置からの制御量に応じて前記電圧・無効電力制御機器を制御する機器制御装置を含むとともに、
前記補正関数は、最適潮流計算時と電圧・無効電力制御機器制御時での制御量の差分と、最適潮流計算時と電圧・無効電力制御機器制御時での制御目標値の差分についての関数であることを特徴とする電圧・無効電力制御装置。 - 電力系統を適宜に分割したローカル系統に監視点を設定し、前記ローカル系統は前記監視点の電圧・無効電力を調整可能な電圧・無効電力制御機器を備えている電力系統における電圧・無効電力制御方法であって、
前記電力系統の全体系統データを用いた最適潮流計算に基づいて、前記ローカル系統の前記監視点の電圧・無効電力の制御目標値を設定し、前記電力系統の状態の過去履歴情報を用いて、前記制御目標値を前記監視点に関わる電力系統の状態変化に伴い補正する補正関数を生成し、前記制御目標値が、前記ローカル系統の系統データと相違するときに前記補正関数を用いて前記制御目標値を達成するに必要な前記電圧・無効電力制御機器の制御量を算出し、該制御量に応じて前記電圧・無効電力制御機器を制御するとともに、
前記補正関数は、最適潮流計算時と電圧・無効電力制御機器制御時での制御量の差分に応じた制御目標値の差分についての関数であることを特徴とする電圧・無効電力制御方法。
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