公开(公告)号：EP1684410A3

公开(公告)日：2009-01-14

申请号：EP06009546.0

申请日：2000-04-12

申请人： Hitachi, Ltd.

发明人： Tobari, Kazuaki ,  Okuyama, Toshiaki

IPC分类号： H02P21/00 ,  H02P21/04 ,  H02P21/14

CPC分类号： H02P21/04 ,  H02P21/18 ,  H02P21/24 ,  H02P21/26 ,  H02P2207/01

摘要： In a method of controlling an induction motor with a rotational speed-control apparatus, which includes a power-conversion unit, for controlling a frequency and voltage output from said power-conversion unit in accordance with a rotational speed instruction value, said rotational speed-control apparatus adds said rotational speed instruction value to a sum of an estimated slip frequency value obtained based on the value of said voltage output from said power-conversion unit and a calculated slip frequency value obtained by using a value of current output from said power-conversion unit corresponding to the result of said addition

公开(公告)号：EP1684410B1

公开(公告)日：2013-10-30

申请号：EP06009546.0

申请日：2000-04-12

申请人： Hitachi, Ltd.

发明人： Tobari, Kazuaki ,  Okuyama, Toshiaki

IPC分类号： H02P21/00 ,  H02P21/04 ,  H02P21/14

CPC分类号： H02P21/04 ,  H02P21/18 ,  H02P21/24 ,  H02P21/26 ,  H02P2207/01

公开(公告)号：EP2246972A3

公开(公告)日：2012-10-03

申请号：EP10006721.4

申请日：2000-04-12

申请人： Hitachi, Ltd.

发明人： Tobari, Kazuaki ,  Okuyama, Toshiaki

IPC分类号： H02P21/00 ,  H02P21/04 ,  H02P21/14

CPC分类号： H02P21/04 ,  H02P21/18 ,  H02P21/24 ,  H02P21/26 ,  H02P2207/01

摘要： The present invention relates to a method of controlling an induction motor (1) with a rotational speed-control apparatus (2-16), which includes a power-conversion unit (2), for such controlling a frequency and current output from said power-conversion unit in accordance with a rotational speed instruction value (ωr*) that if said rotational speed instruction value is less than a predetermined value, current output from said power-conversion unit is controlled at a predetermined value larger than that in an ordinary no-load operation, and the value of said current is corrected corresponding to a value which is obtained by adding an estimated slip frequency value (ωs^) calculated based on the value of said voltage output from said power-conversion unit to a calculated slip frequency value (ωs*) calculated by using a value of current output from said power-conversion unit.

公开(公告)号：EP1684410A2

公开(公告)日：2006-07-26

申请号：EP06009546.0

申请日：2000-04-12

申请人： Hitachi, Ltd.

发明人： Tobari, Kazuaki ,  Okuyama, Toshiaki

IPC分类号： H02P21/04 ,  H02P21/14

CPC分类号： H02P21/04 ,  H02P21/18 ,  H02P21/24 ,  H02P21/26 ,  H02P2207/01

摘要： In a method of controlling an induction motor with a rotational speed-control apparatus, which includes a power-conversion unit, for controlling a frequency and voltage output from said power-conversion unit in accordance with a rotational speed instruction value, said rotational speed-control apparatus adds said rotational speed instruction value to a sum of an estimated slip frequency value obtained based on the value of said voltage output from said power-conversion unit and a calculated slip frequency value obtained by using a value of current output from said power-conversion unit corresponding to the result of said addition

摘要翻译： 在利用包括电力转换单元的旋转速度控制装置控制感应电动机的方法中，根据转速指令值来控制从所述电力转换单元输出的频率和电压， 控制装置将所述转速指令值加到基于从所述功率转换单元输出的所述电压值获得的估计转差频率值和通过使用从所述功率转换单元输出的电流值获得的计算出的转差频率值之和， 转换单元对应于所述相加结果

公开(公告)号：EP0743745A2

公开(公告)日：1996-11-20

申请号：EP96303382.4

申请日：1996-05-14

申请人： HITACHI, LTD.

发明人： Ishida, Seiji ,  Okuyama, Toshiaki ,  Tobari, Kazuaki ,  Oohashi, Hironori ,  Tomita, Hiroyuki ,  Fuji, Hiroshi

IPC分类号： H02P21/00

CPC分类号： H02P21/36

摘要： By detecting that an induction motor has entered in regenerative running, the velocity or voltage is corrected such that the q-axis flux takes a negative value in regenerative running, thereby preventing the torque from being reduced by flux change and suppressing an insufficient torque.

摘要翻译： 通过检测感应电动机已经进入再生运行，对速度或电压进行校正，使得q轴磁通在再生运转中变为负值，从而防止转矩由于磁通变化而减小并且抑制不足的转矩。

公开(公告)号：EP2246972B1

公开(公告)日：2015-06-10

申请号：EP10006721.4

申请日：2000-04-12

申请人： Hitachi, Ltd.

发明人： Tobari, Kazuaki ,  Okuyama, Toshiaki

IPC分类号： H02P21/00 ,  H02P21/04 ,  H02P21/14

CPC分类号： H02P21/04 ,  H02P21/18 ,  H02P21/24 ,  H02P21/26 ,  H02P2207/01

公开(公告)号：EP2273665A2

公开(公告)日：2011-01-12

申请号：EP10006801.4

申请日：2010-07-01

申请人： Hitachi, Ltd.

发明人： Sumita, Satoshi ,  Tobari, Kazuaki ,  Aoyagi, Shigehisa ,  Maeda, Daisuke

IPC分类号： H02P1/02 ,  H02P25/02

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直流负极端子的输出端子电压和固定值的阈值电压之间的大小关系，则其极性在预定的转子相位变化。 例如，可以通过诸如电平移位电路和NOT电路的廉价且简单的装置来检测幅度关系。 永磁同步电动机的转子相位是根据大小关系的变化推断的，如果它是微分，则可以推断转速。 如果将转子相位和转速的推断值反馈到同步运行或矢量控制，则可以重启自由运行的永磁同步电机。

公开(公告)号：EP2403130A2

公开(公告)日：2012-01-04

申请号：EP11171647.8

申请日：2011-06-28

申请人： Hitachi Ltd.

发明人： Sumita, Satoshi ,  Tobari, Kazuaki ,  Maeda, Daisuke ,  Notohara, Yasuo

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.

摘要翻译： 交流电动机（1）的控制装置和控制方法在第一和第二预定期间以预定间隔多次检测DC总线电流，并且在各个周期期间将检测值的积分值乘以具有由 在作为元件进行检测的时刻，在反相器（2）的输出电压相位的正弦和余弦函数的各个周期内具有积分值的矩阵，从而估计无功和有功电流。

公开(公告)号：EP2246972A2

公开(公告)日：2010-11-03

申请号：EP10006721.4

申请日：2000-04-12

申请人： Hitachi, Ltd.

发明人： Tobari, Kazuaki ,  Okuyama, Toshiaki

IPC分类号： H02P21/00 ,  H02P21/04 ,  H02P21/14

CPC分类号： H02P21/04 ,  H02P21/18 ,  H02P21/24 ,  H02P21/26 ,  H02P2207/01

摘要： The present invention relates to a method of controlling an induction motor (1) with a rotational speed-control apparatus (2-16), which includes a power-conversion unit (2), for such controlling a frequency and current output from said power-conversion unit in accordance with a rotational speed instruction value (ωr*) that if said rotational speed instruction value is less than a predetermined value, current output from said power-conversion unit is controlled at a predetermined value larger than that in an ordinary no-load operation, and the value of said current is corrected corresponding to a value which is obtained by adding an estimated slip frequency value (ωs^) calculated based on the value of said voltage output from said power-conversion unit to a calculated slip frequency value (ωs*) calculated by using a value of current output from said power-conversion unit.

摘要翻译： 本发明涉及一种利用转速控制装置（2-16）控制感应电动机（1）的方法，转速控制装置（2-16）包括功率转换单元（2），用于控制从所述功率输出的频率和电流 - 转换单元，其根据转速指令值（Ér*），如果所述转速指令值小于预定值，则从所述功率转换单元输出的电流被控制在比通常的no大的预定值 并且所述电流值对应于通过将基于从所述功率转换单元输出的所述电压的值计算出的估计转差频率值（És^）与计算出的转差频率 通过使用从所述功率转换单元输出的电流值计算的值（És*）。

公开(公告)号：EP0743745B1

公开(公告)日：2003-07-30

申请号：EP96303382.4

申请日：1996-05-14

申请人： Hitachi, Ltd.

发明人： Ishida, Seiji ,  Okuyama, Toshiaki ,  Tobari, Kazuaki ,  Oohashi, Hironori ,  Tomita, Hiroyuki ,  Fuji, Hiroshi

IPC分类号： H02P21/00

CPC分类号： H02P21/36