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公开(公告)号：EP2273665B1
公开(公告)日：2019-04-17
申请号：EP10006801.4
申请日：2010-07-01
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公开(公告)号：EP2320555A3
公开(公告)日：2017-11-01
申请号：EP10014384.1
申请日：2010-11-08
CPC分类号： H02P6/24 , H02P3/18 , H02P29/02 , H02P29/0241
摘要： A motor control apparatus for preventing overvoltages due to the induced voltage when a motor (3) is rotated by an external force under the condition where an inverter circuit (1) is inoperative. The motor control apparatus includes halt occasion speed control means (52) which can reduce the motor's rotational speed when a command for starting the inverter circuit (1) is a halt command and when the rotational speed of the motor (3) is in excess of a given value, as shown in FIG 1. Consequently, when the motor is rotated by an external force, overvoltage due to the induced voltage can be prevented by reducing the motor's speed even if the inverter circuit is not in operation.
摘要翻译： 本发明提供一种电动机控制装置，该电动机控制装置用于防止在逆变器电路（1）不工作的状态下电动机（3）因外力而旋转时的感应电压引起的过电压。 该电动机控制装置具有：停止时速度控制单元（52），在起动逆变器电路（1）的指令为停止指令时，且电动机（3）的转速超过电动机 如图1所示。因此，当电动机由于外力而旋转时，即使逆变器电路不工作，也可以通过降低电动机的速度来防止由感应电压引起的过电压。
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公开(公告)号：EP2403130A3
公开(公告)日：2016-01-27
申请号：EP11171647.8
申请日：2011-06-28
IPC分类号： H02P21/00
CPC分类号： H02P21/0003
摘要： A control apparatus and a control method for an AC electric motor (1) detect DC bus current plural times at predetermined intervals during first and second predetermined periods and multiply vectors having integrated values of detected values during respective periods as elements by an inverse matrix of a matrix having integrated values during respective periods of sine and cosine functions of output voltage phase of an inverter (2) at the moment that detection is made as elements to thereby estimate reactive and active currents.
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4.发明授权Semiconductor device for driving motor, three-phase motor and motor driving apparatus with the semiconductor device and fan motor 有权用于与所述半导体模块的驱动电机，三相电动机和电动机驱动装置和风扇马达组件的半导体
公开(公告)号：EP1971020B1
公开(公告)日：2014-09-24
申请号：EP08001966.4
申请日：2008-02-01
发明人： Sakurai, Kenji , Hasegawa, Hiroyuki , Utsumi, Tomoyuki , Ohozeki, Shoichi , Maeda, Daisuke , Mishima, Mitsuhiro
CPC分类号： H02P23/00 , H01L2224/45144 , H01L2224/48091 , H01L2924/1305 , H01L2924/13055 , H01L2924/13091 , H02M5/00 , H01L2924/00014 , H01L2924/00
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5.发明公开
公开(公告)号：EP2273665A3
公开(公告)日：2018-03-28
申请号：EP10006801.4
申请日：2010-07-01
CPC分类号： H02P1/029 , F05D2260/85 , H02P6/182 , H02P25/024
摘要： If magnitude relations between the output terminal voltage based on a DC negative terminal of the inverter and a threshold voltage that is a fixed value are compared, polarity thereof is changed at a predetermined rotor phase. The magnitude relation, for example, can be detected by an inexpensive and simple apparatus such as a level shift circuit and a NOT circuit. The rotor phase of the permanent magnet synchronous motor is inferred on the basis of changes in the magnitude relation and if it is differentiated, a rotation speed can be inferred. If the inferred values of the rotor phase and rotation speed are fed back to synchronous operation or vector control, the free-running permanent magnet synchronous motor can be restarted.
摘要翻译： 如果比较基于逆变器的DC负端子的输出端子电压和作为固定值的阈值电压之间的大小关系，则其极性在预定转子相位处改变。 例如，大小关系可以通过诸如电平移位电路和非电路之类的便宜且简单的装置来检测。 根据大小关系的变化来推断永磁同步电动机的转子相位，并且如果差异化，则可以推断出转速。 如果将推断出的转子相位和转速值反馈到同步运行或矢量控制，则可以重新启动自激式永磁同步电机。
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