JP2017001668A - 電気推進システムのための同期モータ - Google Patents
電気推進システムのための同期モータ Download PDFInfo
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- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/54—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors
- H02P1/58—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors sequentially
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Abstract
【解決手段】電気推進システム1は、交流駆動回路14、同期回路4、及び、制御ユニット12を含む。交流駆動回路は、複数の推進モータ6A,6B,6N、交流電力バス16、及び、複数の推進モータを同時に駆動するために交流電力バスに交流電力を分配する交流発電機2を含む。同期回路は、1回に、複数の推進モータの中から1つの推進モータを、交流発電機に同期させるように構成される。制御ユニットは、1つの推進モータが交流発電機との同期が取れていないことを判定したことに応答して、1つの推進モータに同期回路を接続することにより、1つの推進モータと交流発電機との間の同期を維持するように構成される。
【選択図】図1
Description
Claims (20)
- 交流駆動回路であって、
複数の推進モータと、
交流電力バスと、
前記複数の推進モータを同時に駆動するために前記交流電力バスに交流電力を分配する交流発電機と、を含む交流駆動回路と、
前記複数の推進モータから1つの推進モータを、1つずつ、前記交流発電機と、個別に同期させるように構成される同期回路と、
前記1つの推進モータが前記交流発電機と同期していないことを判定したことに応答して、前記1つの推進モータに前記同期回路を接続することにより、前記1つの推進モータと前記交流発電機との間の同期を維持するように構成された制御ユニットと、
を備える電気推進システム。 - 前記同期回路は、前記交流発電機と同相となるように前記1つの推進モータを駆動するために、前記1つの推進モータに同期電力を出力することにより、前記交流発電機に前記1つの推進モータを同期させるように構成され、前記同期電力は、前記交流発電機により分配される交流電力に由来することを特徴とする請求項1に記載の電気推進システム。
- 前記同期回路は、前記1つの推進モータが動作速度の閾値を満たす速度で動作していることを判定することに応答して、前記同期電力を出力することを控えることにより、前記交流発電機に前記1つの推進モータを同期させるように構成されることを特徴とする請求項2に記載の電気推進システム。
- 前記同期回路は、前記1つの推進モータ以外の他の複数の推進モータそれぞれに同期電力を出力することを控えることにより、前記交流発電機に前記1つの推進モータを同期させるように、さらに構成されることを特徴とする請求項2又は3に記載の電気推進システム。
- 前記同期回路は、前記交流発電機により分配される交流電力の周波数の許容閾値内にあるように、前記推進モータの周波数を、前記同期電力を用いて、調整することにより、前記交流発電機に前記1つの推進モータを同期させるように構成されることを特徴とする請求項1から4のいずれか1項に記載の電気推進システム。
- 前記同期回路は、前記交流発電機により分配される交流電力の周波数の許容閾値内にあるように、前記推進モータの位相シフトを、前記同期電力を用いて、調整することにより、前記交流発電機に前記1つの推進モータを同期させるように構成されることを特徴とする請求項1から5のいずれか1項に記載の電気推進システム。
- 前記同期回路は、前記交流発電機に関連する電圧の許容閾値内にあるように、前記推進モータの電圧を、前記同期電力を用いて、調整することにより、前記交流発電機に前記1つの推進モータを同期させるように構成されることを特徴とする請求項1から6のいずれか1項に記載の電気推進システム。
- 前記同期回路は、整流器とインバータとを有する直流結合回路を備え、前記整流器は、前記インバータに、前記交流発電機により分配される前記交流電力に基づいて、直流電気信号を供給するように構成され、前記インバータは、前記交流発電機と同相に前記1つの推進モータを駆動するために、前記整流器から受信した前記直流信号に基づいて、又は、前記交流バスに基づいて、同期電力を出力するように構成されることを特徴とする請求項1から7のいずれか1項に記載の電気推進システム。
- 前記直流結合回路は、前記交流発電機により分配される前記交流電力に関連する潜在的な損失状態の間、前記直流電気信号を同期させるためのエネルギー源をさらに備えることを特徴とする請求項8に記載の電気推進システム。
- 前記直流結合回路は、1回に、前記複数の推進モータから1つの推進モータだけを駆動するために十分な定格電力を有することを特徴とする請求項8又は9に記載の電気推進システム。
- 前記同期回路が前記交流発電機に前記1つの推進モータを同期させる間、前記交流駆動回路は、前記1つの推進モータから前記交流発電機を電気的に分離するように、前記制御ユニットにより設定可能な複数の分離装置をさらに備えることを特徴とする請求項1から10のいずれか1項に記載の電気推進システム。
- 前記同期回路が前記交流発電機に前記1つの推進モータを同期させる間、前記複数の分離装置は、前記1つの推進モータ以外の前記複数の推進モータそれぞれに前記交流発電機を電気的に結合させるように、前記制御ユニットによりさらに設定可能であることを特徴とする請求項11に記載の電気推進システム。
- 前記電気推進システムは分散型推進システムを備え、前記交流発電機はエンジンにより駆動されるシャフトを備えることを特徴とする請求項1から12のいずれか1項に記載の電気推進システム。
- 前記同期回路が前記交流発電機に前記1つの推進モータを同期させた後、前記制御ユニットは、前記1つの推進モータから前記同期回路を切り離すことにより、前記1つの推進モータと前記交流発電機との間の同期を維持するようにさらに構成されることを特徴とする請求項1から13のいずれか1項に記載の電気推進システム。
- 一揃いの推進モータから1つの推進モータが発電機と同期していないことを判定するための手段と、
前記発電機から前記1つの推進モータだけを切り離すための手段と、
前記一揃いの推進モータにより共有される同期回路に、前記1つの推進モータだけを接続するための手段と、
前記1つの推進モータが前記発電機と同期したことを判定するための手段と、
前記発電機に前記1つの推進モータを接続するための手段と、
前記同期回路から前記1つの推進モータを切り離す手段と、
を備える電気推進システム。 - 電気推進システムの一揃いの推進モータから1つの推進モータが前記電気推進システムの発電機と同期していないことを判定したことに応答して、前記制御ユニットにより、前記一揃いの推進モータにより共有される前記電気推進システムの同期回路に前記1つの推進モータだけを接続するステップと、
前記1つの推進モータが前記発電機に同期していることを判定したことに応答して、前記制御ユニットにより、前記同期回路から前記1つの推進モータを切り離すステップと、
を備える方法。 - 前記一揃いの推進モータから前記1つの推進モータが前記発電機と同期していないことを判定したことに応答して、且つ、前記同期回路に前記1つの推進モータだけを接続する前記ステップの前に、さらに、前記制御ユニットにより、前記発電機から前記1つの推進モータだけを切り離すステップと、
前記1つの推進モータが前記発電機に同期していることを判定したことに応答して、且つ、前記同期回路から前記1つの推進モータを切り離す前記ステップの前に、さらに、前記制御ユニットにより、前記発電機に戦記1つの推進モータを接続するステップと、
をさらに備える請求項16に記載の方法。 - 前記制御ユニットにより、前記1つの推進モータに関連する速度を判定するステップと、
前記速度が前記一揃いの推進モータの動作速度の閾値を満たすことを判定したことに応答して、前記制御ユニットにより、前記1つの推進モータが前記発電機と同期していることを判定するステップと、
前記周波数、電圧及び位相が前記一揃いの推進モータの動作速度の閾値を満たしていないことを判定したことに応答して、前記制御ユニットにより、前記1つの推進モータが前記発電機と同期していないことを判定するステップと、
をさらに備える請求項16又は17に記載の方法。 - 前記1つの推進モータに関連する前記速度を判定する前記ステップは、前記1つの推進モータに関連する電流レベルに基づき前記速度を推定するステップ、を含むことを特徴とする請求項18に記載の方法。
- 前記同期回路に前記1つの推進モータだけを接続する前記ステップは、前記発電機と、前記1つの推進モータ以外の前記一揃いの推進モータからの前記各推進モータとの間の電気的結合を維持する間、前記発電機から前記1つの推進モータを電気的に分離するように、前記電気推進システムの複数の分離装置を設定するステップ、を含むことを特徴とする請求項16から19のいずれか1項に記載の方法。
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