To provide an electric drive which reduces such a possibility that power electronic components, such as controllable semiconductor switches and diodes, of the electric drive may have high electric currents flowing therethrough and an overload is applied to the components.SOLUTION: There are provided a method for operating a winch and an electric drive for driving a winch, the winch including a rotatable winch drum (20) for spooling a spoolable medium (10) and an electric motor (30) operably coupled to the winch drum. Electric drives (40, 41) are configured to drive the winch drum (20) by driving the electric motor (30) such that a tension of the spoolable medium (10) reaches a predetermined tension set point value or value range, set a driving speed of the electric motor (30) to zero, and after the setting of the driving speed of the electric motor (30) to zero, drive the electric motor (30) to alternate directions of rotation at predetermined driving speeds such that the direction of rotation is changed at a predetermined frequency.SELECTED DRAWING: Figure 1
【課題】電気駆動機における、制御可能な半導体スイッチやダイオード等のパワーエレクトロニクス部品に高電流が流れて、部品に対して過負荷が掛かる可能性を軽減する電気駆動機を提供すること。【解決手段】巻取可能媒体(10)を巻き取るための、回転可能なウインチドラム(20)と、ウインチドラムに対して動作可能に連結した電気モータ(30)とを備えたウインチを操作する方法及びウインチを操作するための電気駆動機を提供する。電気駆動機(40,41)は、電気モータ(30)を駆動することで、巻取可能媒体(10)の張力が所定の張力設定値又は範囲値に到達するようにウインチドラム(20)を駆動し、電気モータ(30)の駆動速度をゼロ速に設定し、電気モータ(30)の駆動速度をゼロ速に設定した後、電気モータ(30)を、所定の周波数で回転方向を変更するように、所定の駆動速度で交互の回転方向に駆動するように構成される。【選択図】 図1
METHOD FOR OPERATING WINCH AND ELECTRIC DRIVE FOR DRIVING WINCH
ウインチを操作する方法及びウインチを駆動するための電気駆動機
2019-09-19
Patent
Electronic Resource
Japanese
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B66D Haspeln , CAPSTANS |
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