JP2017022973A - 電気推進システムにおける障害の識別及び隔離 - Google Patents
電気推進システムにおける障害の識別及び隔離 Download PDFInfo
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Abstract
Description
Claims (20)
- 電気推進システムであって、
1つ又は複数の負荷と、
前記1つ又は複数の負荷に電力を提供する少なくとも1つの電源と、
前記少なくとも1つの電源によって提供される前記電力を前記1つ又は複数の負荷のそれぞれに分配する少なくとも1つのブランチであって、1つ又は複数のゾーンにパーティション化されている少なくとも1つのブランチと、
を有し、
前記少なくとも1つのブランチは、
前記少なくとも1つのブランチにおける障害電流に応答して、前記少なくとも1つの電源から前記少なくとも1つのブランチを隔離するように構成された複数のブランチ隔離装置と、
前記1つ又は複数のゾーンからのそれぞれの個別のゾーン用のゾーン隔離装置の個別のペアであって、前記1つ又は複数のゾーンのいずれが前記障害電流の供給源であるのかを識別するための前記少なくとも1つのブランチの試験の際に、前記少なくとも1つのブランチから前記個別のゾーンを隔離するように構成された、それぞれの個別のゾーン用のゾーン隔離装置の個別のペアと、
を有する、システム。 - 前記ゾーン隔離装置の個別のペアは、前記個別のゾーンが前記障害電流の前記供給源である場合に、前記試験の後に前記個別のゾーンの隔離を継続するように更に構成されている請求項1に記載の電気推進システム。
- 前記ゾーン隔離装置の個別のペアは、前記複数のブランチ隔離装置が前記少なくとも1つのブランチに対する且つ前記1つ又は複数の負荷のうちの少なくとも1つに対する前記少なくとも1つの電源からの前記電力を回復した後に、前記個別のゾーンの隔離を継続するように更に構成されている請求項2に記載の電気推進システム。
- それぞれの個別のゾーン用の前記ゾーン隔離装置の個別のペアは、閾値を充足していない、前記試験の際の、前記個別のゾーンにおける電圧又は電流レベルに応答して、前記試験の後に、前記個別のゾーンの隔離を継続するように更に構成されている請求項3に記載の電気推進システム。
- 前記試験の際に前記少なくとも1つのブランチに試験信号を印加する第2エネルギー供給源を更に有する請求項1乃至4のいずれか一項に記載の電気推進システム。
- 前記試験信号の電圧又は電流レベルは、前記少なくとも1つの電源によって提供される前記電力と関連付けられた電圧又は電流レベル未満である請求項5に記載の電気推進システム。
- 前記第2エネルギー供給源は、前記電源とは別個のエネルギーストレージ装置を有する請求項5又は6のいずれか一項に記載の電気推進システム。
- 前記第2エネルギー供給源は、前記ゾーン隔離装置の個別のペアのうちの1つ又は複数を有する請求項5又は6のいずれか一項に記載の電気推進システム。
- 前記少なくとも1つのブランチは、前記1つ又は複数のゾーンのうちの少なくとも1つが前記少なくとも1つのブランチから隔離されている間に、前記少なくとも1つの電源を前記1つ又は複数の負荷のうちの少なくとも1つに電気的に結合するように構成されている請求項1乃至8のいずれか一項に記載の電気推進システム。
- 前記1つ又は複数のゾーンからのそれぞれの個別のゾーンは、前記少なくとも1つのブランチのその他のゾーンに、或いは、前記1つ又は複数の負荷に、前記少なくとも1つの電源によって提供される前記電力の少なくとも一部分を分配するための前記ゾーン隔離装置の個別のペアの間における電流経路を有する請求項1乃至9のいずれか一項に記載の電気推進システム。
- 前記複数のブランチ隔離装置は、前記試験の際に、前記障害電流を中断すると共に前記少なくとも1つの電源における動作電圧を遮断するのに十分な第1定格を有し、且つ、それぞれの個別のゾーン用の前記ゾーン隔離装置の個別のペアは、前記複数のブランチ隔離装置の前記第1定格未満である第2定格を有する請求項1乃至10のいずれか一項に記載の電気推進システム。
- 前記第2定格は、前記試験の際に、前記障害電流を中断するか、或いは、前記少なくとも1つの電源における前記動作電圧を遮断するのに不十分である請求項11に記載の電気推進システム。
- 前記1つ又は複数の負荷は、前記少なくとも1つの電源によって提供される前記電力に基づいて推進力を提供する1つ又は複数の電気推進ユニットを有する請求項1乃至12のいずれか一項に記載の電気推進システム。
- 前記複数のブランチ隔離装置は、少なくとも、
前記障害電流に応答して、前記少なくとも1つの電源から前記少なくとも1つのブランチを結合解除するか、或いは、
前記障害電流に応答して、フォールドバック制御を実行して前記少なくとも1つのブランチと関連付けられた電圧を低減する、
ことにより、前記障害電流に応答して、前記少なくとも1つの電源から前記少なくとも1つのブランチを隔離するように構成されている請求項1乃至13のいずれか一項に記載の電気推進システム。 - 電気推進システムのブランチにおいて障害電流を検出するステップと、
前記障害電流の検出に応答して、1つ又は複数の負荷に前記ブランチを介して電力を供給している電源から、前記ブランチを隔離するステップと、
前記ブランチが前記電源から隔離されている間に、前記ブランチの1つ又は複数の障害ゾーンを前記障害電流の供給源であると識別するステップと、
前記1つ又は複数の障害ゾーンのそれぞれを前記ブランチから隔離するステップと、
前記ブランチからの前記1つ又は複数の障害ゾーンのうちのそれぞれの障害ゾーンの隔離を継続しつつ、前記ブランチの1つ又は複数の非障害ゾーンを介して、前記電力を前記1つ又は複数の負荷の少なくとも1つに分配するステップと、
を有する方法。 - 前記ブランチの前記1つ又は複数の障害ゾーンを前記障害電流の前記供給源であると識別するステップは、
試験信号を前記ブランチに印加した後に、前記1つ又は複数の障害ゾーンのそれぞれにおける電圧又は電流レベルを判定するステップと、
前記試験の際に、前記1つ又は複数の障害ゾーンにおける電圧又は電流レベルが閾値を充足していないという判定に応答して、前記ブランチの前記1つ又は複数の障害ゾーンを前記障害電流の前記供給源であると識別するステップと、
を有する請求項15に記載の方法。 - 前記試験信号を前記ブランチに印加するステップは、第2エネルギー供給源が前記試験信号を前記ブランチに印加できるようにするステップを有する請求項16に記載の方法。
- 前記第2エネルギー供給源は、前記電源とは別個のエネルギーストレージ装置を有し、或いは、前記第2エネルギー供給源は、前記ブランチからの1つ又は複数のゾーン隔離装置を有する請求項17に記載の方法。
- 前記ブランチから前記1つ又は複数の障害ゾーンのそれぞれを隔離するステップは、前記ブランチの前記1つ又は複数の非障害ゾーンのうちのそれぞれの非障害ゾーンの隔離を抑制するステップを有する請求項15乃至18のいずれか一項に記載の方法。
- システムであって、
前記システムのブランチにおいて障害電流を検出する手段と、
前記障害電流の検出に応答して、電力を前記ブランチを介して1つ又は複数の負荷に供給している電源から、前記ブランチを隔離する手段と、
前記ブランチが前記電源から隔離されている間に、前記ブランチの1つ又は複数の障害ゾーンを前記障害電流の供給源であると識別する手段と、
前記1つ又は複数の障害ゾーンのそれぞれを前記ブランチから隔離する手段と、
前記1つ又は複数の障害ゾーンのうちのそれぞれの障害ゾーンの前記ブランチからの隔離を継続しつつ、前記ブランチの1つ又は複数の非障害ゾーンを介して、前記電力を前記1つ又は複数の負荷のうちの少なくとも1つに分配する手段と、
を有するシステム。
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