公开(公告)号：US20150100185A1

公开(公告)日：2015-04-09

申请号：US14381283

申请日：2013-02-28

申请人： ABB OY

发明人： Mikko Kajava ,  Tomi Veikonheimo ,  Markku Lyyjynen ,  Tero Setälä

IPC分类号： B63H1/18 ,  B63H23/00 ,  B63H21/21 ,  B63H25/00 ,  B63H25/06

CPC分类号： B63H1/18 ,  B63B17/00 ,  B63H21/21 ,  B63H23/00 ,  B63H25/00 ,  B63H25/06 ,  B63H2021/216

摘要： A ship is disclosed which can include a hull, at least one propulsion unit having a propulsion engine, transmission, at least one propeller connected via the transmission to the propulsion engine, and an oscillation sensor situated in a vicinity of the at least one propeller in order to sense cavitation of the at least one propeller. A control unit can control the propulsion engine, the oscillation sensor being connected to the control unit, whereby the output signal of the oscillation sensor is analyzed in the control unit to detect and indicate that a worse degree cavitation is emerging on a display unit at the navigation bridge and/or regulate the rotation speed and/or the power of the propulsion engine.

摘要翻译： 公开了一种船，其可以包括船体，具有推进发动机的至少一个推进单元，变速器，经由变速器连接到推进发动机的至少一个螺旋桨，以及位于至少一个螺旋桨附近的振动传感器 以便感测至少一个螺旋桨的气蚀。 控制单元可以控制推进发动机，振荡传感器连接到控制单元，从而在控制单元中分析振荡传感器的输出信号，以检测并指示在显示单元上出现较差程度的空化现象 导航桥和/或调节推进发动机的转速和/或功率。

公开(公告)号：US09184691B2

公开(公告)日：2015-11-10

申请号：US14317567

申请日：2014-06-27

申请人： ABB Oy

发明人： Mikko Vertanen ,  Markku Lyyjynen ,  Juha Suvanto ,  Juha Saukko

IPC分类号： H02P27/04 ,  H02P27/06

CPC分类号： H02P27/06 ,  H02P2205/03

摘要： A method for controlling an electric drive, having an inverter, an electric motor and control means configured in a first operating state of the electric drive to control the electric drive to run in a constant operating point, determine and store a value of an output voltage of the inverter or a value of a flux reference of the inverter, and a value of a switching frequency of the inverter with which a determined input power of the electric drive is lowest. The controller is configured in a second operating state of the electric drive to control the electric drive to use the stored values to run in the operating point.

摘要翻译： 一种用于控制电驱动的方法，具有逆变器，电动机和控制装置，该电动机和控制装置被构造成在电驱动器的第一操作状态下控制电驱动器在恒定工作点运行，确定并存储输出电压值 或逆变器的通量基准值，以及电驱动器的确定输入功率最低的逆变器的开关频率的值。 控制器被配置在电驱动器的第二操作状态中，以控制电驱动器以使用存储的值在操作点中运行。