-
公开(公告)号：US20130243625A1
公开(公告)日：2013-09-19
申请号：US13816296
申请日：2011-07-26
摘要： A synchronous electric motor drive system capable of driving at speeds near zero is provided. An energization mode determination unit switches six energization modes successively based on a terminal potential detected of the de-energized phase of a three-phase synchronous electric motor or on a stator winding wire connection point potential (neutral point potential) detected of the three-phase synchronous transmission unit. A voltage command correction unit corrects by a correction amount ΔV an applied voltage command destined for the synchronous electric motor to supply the synchronous electric motor with a repeated waveform of a positive pulse, negative pulse, and zero voltage as a line voltage waveform of the energized phases in each of the six energization modes, the positive pulse voltage being polarized to cause the synchronous electric motor to generate a forward rotation torque, the negative pulse voltage causing the synchronous electric motor to generate a reverse rotation torque.
摘要翻译： 提供能够以接近零的速度行驶的同步电动机驱动系统。 通电模式确定单元基于检测到三相同步电动机的去电相位的终端电位或者检测到的三相同步电动机的定子绕组线连接点电位（中性点电位），连续地切换六个通电模式 同步传输单元。 电压指令校正单元通过校正量DeltaV来校正用于同步电动机的施加电压指令，以向正向脉冲，负脉冲和零电压的重复波形供给同步电动机作为通电的线电压波形 在六个通电模式中的每一个相位中，正脉冲电压被极化以使同步电动机产生正向转矩，负脉冲电压引起同步电动机产生反向转矩。
-
公开(公告)号：US08531148B2
公开(公告)日：2013-09-10
申请号：US13171626
申请日：2011-06-29
申请人： Satoshi Sumita , Kazuaki Tobari , Daisuke Maeda , Yasuo Notohara
发明人： Satoshi Sumita , Kazuaki Tobari , Daisuke Maeda , Yasuo Notohara
IPC分类号： H02P7/00
CPC分类号： H02P21/0003
摘要： A control apparatus and a control method for an AC electric motor 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 at the moment that detection is made as elements to thereby estimate reactive and active currents.
摘要翻译： AC电动机的控制装置和控制方法在第一和第二预定时段期间以预定间隔多次检测DC总线电流，并且在各周期期间具有检测值的积分值的乘法向量作为具有积分的矩阵的逆矩阵的元素 在检测作为元件的时刻的逆变器的输出电压相位的正弦和余弦函数的各个周期期间的值，从而估计无功和有功电流。
-
公开(公告)号：US20130057193A1
公开(公告)日：2013-03-07
申请号：US13559267
申请日：2012-07-26
IPC分类号： H02P6/00
摘要： In sequentially selecting and driving two phases of the three-phase stator windings of a synchronous motor, detect a speed electromotive voltage of a de-energized phase, relate the speed electromotive voltage to rotor position information beforehand, then count rotor position information backward based on the detected the speed electromotive voltage to estimate rotor position; and then detect rotation speed from the change rate of the rotor position information so as to achieve highly accurate position and speed control.
摘要翻译： 在顺序地选择和驱动同步电动机的三相定子绕组的两相中，检测去电相位的速度电动势，预先将速动电压与转子位置信息相关联，然后基于 检测出速度电动势估计转子位置; 然后从转子位置信息的变化率检测转速，以实现高精度的位置和速度控制。
-
公开(公告)号：US08305019B2
公开(公告)日：2012-11-06
申请号：US12708352
申请日：2010-02-18
申请人： Kazuaki Tobari , Shigehisa Aoyagi , Kentaro Oi
发明人： Kazuaki Tobari , Shigehisa Aoyagi , Kentaro Oi
IPC分类号： H02P21/14
摘要： When output voltage V1 of an electric power converter reaches a prescribed voltage V1*ref, a difference between V1 and V1*ref is integrated to correct a commanded torque to τo* (τ*=τo*+Δτ).
摘要翻译： 当电力转换器的输出电压V1达到规定电压V1 * ref时，V1和V1 * ref之间的差被积分，以将指令转矩修正为τo*（τ* =τo* +＆Dgr;τ）。
-
45.发明申请公开(公告)号：US20090322262A1
公开(公告)日：2009-12-31
申请号：US12490850
申请日：2009-06-24
申请人： Kazuaki Tobari , Shigehisa Aoyagi , Satoshi Sumita
发明人： Kazuaki Tobari , Shigehisa Aoyagi , Satoshi Sumita
IPC分类号： H02P21/14
CPC分类号： H02P21/18
摘要： A motor control system includes a power converter, a vector controller for controlling the power converter, an axial error estimating operation for estimating an axial error which is a deviation between the phase estimation value and phase value of the motor, and a rotational speed estimating computing unit 5 for performing control so as to equalize the estimation value to a command of the axial error, a motor constant identification computing unit. The motor constant identification computing unit identifies a motor constant with a q-axis voltage component and a rotational speed identified value or a rotational speed command to reflect the identified motor constant in the vector controller.
摘要翻译： 电动机控制系统包括功率转换器，用于控制功率转换器的矢量控制器，用于估计作为电动机的相位估计值和相位值之间的偏差的轴向误差的轴向误差估计操作以及转速估计计算 单元5，用于执行控制以使估计值与轴向误差的命令相等，马达常数识别计算单元。 电机常数识别计算单元通过q轴电压分量和转速识别值或转速指令识别电动机常数，以反映矢量控制器中所识别的电动机常数。
-
公开(公告)号：US20070216342A1
公开(公告)日：2007-09-20
申请号：US11679271
申请日：2007-02-27
申请人： Kazuaki Tobari , Kentaro Ohi , Yoshitaka Iwaji
发明人： Kazuaki Tobari , Kentaro Ohi , Yoshitaka Iwaji
IPC分类号： H02P27/04
CPC分类号： H02P21/22
摘要： A vector control apparatus for a permanent magnet motor operated in the region of weak magnet field, wherein when the output voltages of the power converter saturate, the phase error command value represented by the difference between the angular position of the reference axis for control and the angular position of the motor magnetic flux axis is generated on the basis of the difference between the q-axis current command value and the detected value of the q-axis current, and the command values for the output voltages of the power converter are corrected by using the phase error command value, whereby a highly responsive torque control with high precision can be achieved.
摘要翻译： 一种用于在弱磁场区域中操作的永磁电动机的矢量控制装置，其中当功率转换器的输出电压饱和时，相位误差指令值由用于控制的参考轴的角位置与 基于q轴电流指令值与q轴电流的检测值之间的差产生电动机磁通轴的角度位置，功率转换器的输出电压的指令值由 使用相位误差指令值，可以实现高精度的高响应转矩控制。
-
公开(公告)号：US06670786B2
公开(公告)日：2003-12-30
申请号：US10004814
申请日：2001-12-07
申请人： Kazuaki Tobari , Toshiaki Okuyama
发明人： Kazuaki Tobari , Toshiaki Okuyama
IPC分类号： H02P528
CPC分类号： H02P21/04 , H02P21/18 , H02P21/24 , H02P21/26 , H02P2207/01
摘要： If a speed instruction value is less than a predetermined value, the output current of a power-conversion unit is controlled to be larger than a current value in an ordinary no-load operation, or a frequency instruction value is calculated based on a speed instruction value in place of an estimated speed.
-
公开(公告)号：US08436563B2
公开(公告)日：2013-05-07
申请号：US12827736
申请日：2010-06-30
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, is 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 is 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 is 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。 幅度关系例如由诸如电平移位电路和NOT电路的便宜且简单的装置来检测。 永磁同步电动机的转子相位根据大小关系的变化推断，如果差分，推断转速。 如果将转子相位和转速的推定值反馈到同步运行或矢量控制，则自由运行的永磁同步电机重新启动。
-
公开(公告)号：US08344671B2
公开(公告)日：2013-01-01
申请号：US12635855
申请日：2009-12-11
申请人： Kazuaki Tobari , Yasuo Notohara , Wataru Hatsuse , Dongsheng Li , Kentaro Oi , Yuuji Funayama
发明人： Kazuaki Tobari , Yasuo Notohara , Wataru Hatsuse , Dongsheng Li , Kentaro Oi , Yuuji Funayama
IPC分类号： H02P21/00
CPC分类号： H02P6/085 , H02P21/22 , H02P25/024 , H02P29/027 , H02P2207/05 , H02P2209/07
摘要： The invention relates to a speed control method of a magnetic motor and is capable of providing a speed controller of the magnetic motor realizing highly stable, highly efficient and highly responsive control characteristics even around critical torque of the motor. When an excessive torque command value (or a q-axis commanded current value) greater than a torque maximum value (or a q-axis current) that can be outputted by the motor is required, an input of speed control is limited so that the q-axis commanded current value does not increase up to a limit value.
摘要翻译： 本发明涉及一种磁电机的速度控制方法，并且即使在马达的临界转矩下，也能够提供磁马达的速度控制器，实现高度稳定，高效和高响应的控制特性。 当需要大于可由电动机输出的转矩最大值（或q轴电流）的过大的转矩指令值（或q轴指令电流值）时，速度控制的输入被限制， q轴命令的当前值不会增加到限制值。
-
公开(公告)号：US20090058331A1
公开(公告)日：2009-03-05
申请号：US12193209
申请日：2008-08-18
IPC分类号： H02P23/00
CPC分类号： H02M7/53873 , H02M2001/0009 , H02P21/00
摘要： A semiconductor power converter includes a power converter for converting direct current to three-phase alternating current or vice versa; a means for detecting a current in an alternating current side of the power converter; a means for providing a current reference in the alternating current side of the power converter; a current controller for calculating a voltage reference in the alternating current side of the power converter to match the current reference and a value of the detected current; and a pulse width modulation means for controlling the power converter through pulse width modulation based on the voltage reference, wherein the current reference is used in place of the value of the detected current for at least one phase current among three phase currents in the alternating current side.
摘要翻译： 半导体功率转换器包括用于将直流电流转换为三相交流电的功率转换器，反之亦然; 用于检测电力转换器的交流侧的电流的装置; 用于在电力转换器的交流侧提供电流基准的装置; 电流控制器，用于计算所述功率转换器的交流侧的电压参考以匹配所述电流基准和所述检测电流的值; 以及脉冲宽度调制装置，用于通过基于参考电压的脉冲宽度调制来控制功率转换器，其中使用电流参考来代替交流电流中的三相电流中的至少一相电流的检测电流的值 侧。
-
-
-
-
-
-
-
-
-
搜索结果
53 条记录 (耗时 0.029 秒)
