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公开(公告)号：US20080061726A1
公开(公告)日：2008-03-13
申请号：US11895406
申请日：2007-08-23
IPC分类号： H02P6/08
摘要： A control technology for a synchronous motor for suppressing rotational pulsation caused by variation in individuals without making a control algorithm complex is provided. In a motor drive system which is a control device for a synchronous motor, in order to suppress the pulsation component of N times as high as the AC frequency for driving the synchronous motor, a controller in which the phase property of the disturbance response of the controller with respect to the pulsation frequency is within ±45° is arranged. Therefore, the torque pulsation component generated from distortion in induction voltage or variation between phases is suppressed.
摘要翻译： 提供了一种用于抑制由个体变化引起的旋转脉动的同步电机的控制技术，而不使控制算法复杂化。 在作为同步电动机的控制装置的电动机驱动系统中，为了抑制用于驱动同步电动机的交流频率的N倍的脉动分量，控制器将其中的干扰响应的相位特性 相对于脉动频率的控制器设置在±45°以内。 因此，抑制了感应电压的变形或相位的变化而产生的转矩脉动成分。
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公开(公告)号：US20060044848A1
公开(公告)日：2006-03-02
申请号：US11213728
申请日：2005-08-30
申请人： Takahiro Suzuki , Yoshitaka Iwaji , Tsunehiro Endo , Yasuo Notohara , Yoshiaki Kurita , Tatsuo Ando , Chikara Tanaka
发明人： Takahiro Suzuki , Yoshitaka Iwaji , Tsunehiro Endo , Yasuo Notohara , Yoshiaki Kurita , Tatsuo Ando , Chikara Tanaka
IPC分类号： H02M5/45
CPC分类号： H02M7/003 , H02M5/4585 , H02M2001/0012
摘要： A converter includes a converter circuit 1 having a plurality of bridge-connected semiconductor switching devices for converting AC power into DC power, a smoothing condenser connected in parallel to the DC side of the converter circuit and a current detector provided in a condenser circuit to control a condenser current flowing through the smoothing condenser to be a set value. The condenser current is controlled to be the set value (e.g. zero) to thereby reduce the capacity of the smoothing condenser and make the converter small.
摘要翻译： A转换器包括转换器电路1，其具有用于将AC电力转换为DC电力的多个桥接半导体开关器件，与转换器电路的DC侧并联连接的平滑电容器和设置在电容器电路中的电流检测器 流过平滑电容器的电容器电流为设定值。 冷凝器电流被控制为设定值（例如零），从而降低平滑电容器的容量并使转换器变小。
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43.发明授权Synchronous motor driving system and sensorless control method for a synchronous motor 失效同步电机的同步电机驱动系统和无传感器控制方法公开(公告)号：US06628099B2
公开(公告)日：2003-09-30
申请号：US10213685
申请日：2002-08-06
IPC分类号： H02P318
摘要： Axial error calculation unit is provided for estimating an axial error &Dgr;&thgr; between a d-q axis and a dc-qc axis by using Ld, Lq, Ke, Id*, Iq*, Idc and Iqc in a range of all rotational speeds except zero of a rotational speed command of a synchronous motor, Ld denoting an inductance on a magnetic pole axis d of the synchronous motor, Lq an inductance on a q axis orthogonal to the magnetic pole axis d, Ke a generated power constant of the motor, Id* a current command of the d axis, Iq* a current command on a q axis, Idc a detected current value on an assumed dc axis on control, and Iqc a detected current value on an assumed qc axis orthogonal to the assumed dc axis. Irrespective of presence of saliency, position sensorless control can be achieved in a wide range a low to high speed zone.
摘要翻译： 提供轴向误差计算单元，用于通过使用除了零的零以外的所有转速的范围内的Ld，Lq，Ke，Id *，Iq *，Idc和Iqc来估计dq轴和dc-qc轴之间的轴向误差Deltatheta 同步电动机的转速指令Ld表示同步电动机的磁极轴d上的电感，Lq是与磁极轴d正交的aq轴上的电感，Ke是电动机的发电功率常数，Id *电流 d轴的命令，Iq * aq轴上的电流指令，Idc是控制上假设的直流轴上的检测到的电流值，Iqc是与假定的直流轴正交的假设qc轴上的检测电流值。 无论存在显着性，可以在低速到高速区域的广泛范围内实现无位置传感器控制。
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公开(公告)号：US06614137B2
公开(公告)日：2003-09-02
申请号：US09791720
申请日：2001-02-26
IPC分类号： H02K4103
CPC分类号： H02K41/031
摘要： Leakage of magnetic fluxes passing through the gaps between the magnetic pole teeth of an armature is reduced thereby to reduce a magnetic attraction force between the armature and a mover. A linear motor includes a first member and a second member. The first member is configured with at least a magnetic pole of a first polarity having a first opposed portion and a magnetic pole of a second polarity having a second opposed portion. The second member is held by the first opposed portion, while the second member is held by the second opposed portion and moves relatively. The first member is formed of an iron core and a winding, and the second member is formed of a permanent magnet, a magnetic material, a winding of a single type or a combination of a plurality of types of materials.
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公开(公告)号：US08674647B2
公开(公告)日：2014-03-18
申请号：US13030168
申请日：2011-02-18
申请人： Yoshitaka Iwaji , Daigo Kaneko , Kouki Yamamoto
发明人： Yoshitaka Iwaji , Daigo Kaneko , Kouki Yamamoto
IPC分类号： H02P6/00
CPC分类号： H02P21/04 , B60L15/025 , B60L15/08 , B60L2200/26 , B60L2210/20 , H02P6/182 , H02P21/141 , H02P21/18 , Y02T10/643 , Y02T10/725
摘要： Provided is a drive device for an alternating current motor which performs vector control on sensorless driving of the alternating current motor in an extremely low speed region without applying a harmonic voltage intentionally while maintaining an ideal PWM waveform. A current and a current change rate of the alternating current motor are detected, and a magnetic flux position inside of the alternating current motor is estimated and calculated in consideration of an output voltage of an inverter which causes this current change. The current change rate is generated on the basis of a pulse waveform of the inverter, and hence the magnetic flux position inside of the alternating current motor can be estimated and calculated without applying a harmonic wave intentionally.
摘要翻译： 提供一种用于交流电动机的驱动装置，其在极低速区域内对无刷电机驱动交流电动机进行矢量控制，而不用有意地施加谐波电压同时保持理想的PWM波形。 检测交流电动机的电流和电流变化率，考虑到导致该电流变化的逆变器的输出电压，来估计和计算交流电动机内部的磁通位置。 基于逆变器的脉冲波形产生电流变化率，因此可以有意地使用谐波来估计和计算交流电动机内部的磁通位置。
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公开(公告)号：US08362727B2
公开(公告)日：2013-01-29
申请号：US12963392
申请日：2010-12-08
IPC分类号： H02P6/10
摘要： A control technology for a synchronous motor for suppressing rotational pulsation caused by variation in individuals without making a control algorithm complex is provided. In a motor drive system which is a control device for a synchronous motor, in order to suppress the pulsation component of N times as high as the AC frequency for driving the synchronous motor, a controller in which the phase property of the disturbance response of the controller with respect to the pulsation frequency is within ±45° is arranged. Therefore, the torque pulsation component generated from distortion in induction voltage or variation between phases is suppressed.
摘要翻译： 提供了一种用于抑制由个体变化引起的旋转脉动的同步电机的控制技术，而不使控制算法复杂化。 在作为同步电动机的控制装置的电动机驱动系统中，为了抑制用于驱动同步电动机的交流频率的N倍的脉动分量，控制器将其中的干扰响应的相位特性 相对于脉动频率的控制器设置在±45°以内。 因此，抑制了感应电压的变形或相位的变化而产生的转矩脉动成分。
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公开(公告)号：US20120038301A1
公开(公告)日：2012-02-16
申请号：US13264076
申请日：2009-04-16
摘要： Provided is an AC motor in a three-phase unbalanced state such as a claw-teeth type AC motor (108), which is reduced in magnetic flux pulsations and torque pulsations. Among the current command values of individual phases to be intrinsically given to an inverter (106) for feeding three-phase alternating currents of variable voltages/frequencies to the electric motor, a current command of an intermediate phase (a V-phase) having a smaller magnetic resistance of a stator core than those of other phases is subjected to a reducing correction by a correction unit (102) on the basis of the correction amount calculated by a current correction amount calculating unit (103), and the unbalanced three-phase alternating currents are fed to the AC motor (108), so that magnetic flux pulsations of a secondary electric angle and torque pulsations of the same order are reduced.
摘要翻译： 提供一种三相不平衡状态的交流电动机，例如爪齿型交流电动机（108），其减小了磁通量脉动和转矩脉动。 在本质上给予用于向电动机供给可变电压/频率的三相交流电的逆变器（106）的各个相的当前指令值中，具有具有可变电压/频率的中间相（V相）的电流指令 基于由当前校正量计算单元（103）计算出的校正量，通过校正单元（102）对定子铁心的其他相位的较小的磁阻进行减小校正，并且不平衡的三相 交流电流被馈送到AC电动机（108），使得次级电角度和相同阶数的转矩脉动的磁通量脉动减小。
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公开(公告)号：US20110298308A1
公开(公告)日：2011-12-08
申请号：US13201466
申请日：2009-03-13
申请人： Yasuaki Aoyama , Yoshitaka Iwaji
发明人： Yasuaki Aoyama , Yoshitaka Iwaji
IPC分类号： H02K41/03
CPC分类号： H02K41/03
摘要： Provided is a small size and lightweight linear motor having small thrust ripples, in which the magnetic attraction working between an armature and a mover is canceled out and therefore is small.A thrust generation mechanism comprises a stator (3) and a mover (5). The mover (5) includes permanent magnets (4) installed in a row so that the magnetic poles at the front and backsides of the magnets are alternately reversed along the traveling direction. The stator (3) includes upper and lower pole teeth (6), (7) having a plurality of magnetic poles (2) and arranged so as to sandwich the permanent magnets (4) of the mover (5), cores for connecting the pole teeth, and a winding (1) wound around a set of a plurality of the cores. Thrust ripples are reduced by adjusting the magnetic pole pitch (Pc) of the magnetic poles (2).
摘要翻译： 本发明提供一种具有小的推力波纹的小尺寸轻型线性电动机，其中在电枢和动子之间工作的磁吸引力被抵消，因此是小的。 推力产生机构包括定子（3）和动子（5）。 动子（5）包括安装在一排中的永磁体（4），使得磁体前后的磁极沿行进方向交替地反向。 定子（3）包括具有多个磁极（2）的上极和下极齿（6），（7）并且被布置成夹住动子（5）的永磁体（4），用于将 以及缠绕在一组多个芯上的绕组（1）。 通过调节磁极（2）的磁极间距（Pc）来减小推力波纹。
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公开(公告)号：US20110050140A1
公开(公告)日：2011-03-03
申请号：US12805840
申请日：2010-08-20
IPC分类号： H02P6/18
CPC分类号： H02P9/30 , H02M7/53873 , H02P6/18 , H02P9/009 , H02P21/18
摘要： When applying a high frequency voltage which alternates on positive and negative sides to a permanent magnet synchronous motor, a driving system of synchronous motor switches the applied voltage phase by 120 degrees successively and applies resultant voltages to three phases. A pulsating current generated by applying a high frequency voltage is detected at timing of elapse of a predetermined time Δt since an output voltage of at least one phase has changed from a state in which all output voltages of the three phases of a power converter are positive or negative. Current detection is conducted by using a DC resistor or a phase current sensor provided on a DC bus. A magnetic pole estimation unit calculates the rotor magnetic pole position of the permanent magnet synchronous motor on the basis of differences between positive side and negative side change quantities in three-phase currents obtained from detected current values.
摘要翻译： 当施加在正极和负极侧交替永磁同步电动机的高频电压时，同步电动机的驱动系统连续地将施加的电压相位切换120度，并将合成的电压施加到三相。 由于至少一相的输出电压已经从功率转换器的三相的所有输出电压的状态发生变化，所以在经过预定时间＆Dgr; t的定时检测施加高频电压而产生的脉动电流 是正或负。 通过使用直流母线上提供的直流电阻或相电流传感器进行电流检测。 磁极估计单元根据从检测到的电流值得到的三相电流的正侧和负侧的变化量之差，来计算永磁同步电动机的转子磁极位置。
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公开(公告)号：US07859209B2
公开(公告)日：2010-12-28
申请号：US11895406
申请日：2007-08-23
IPC分类号： H02P6/10
摘要： A control technology for a synchronous motor for suppressing rotational pulsation caused by variation in individuals without making a control algorithm complex is provided. In a motor drive system which is a control device for a synchronous motor, in order to suppress the pulsation component of N times as high as the AC frequency for driving the synchronous motor, a controller in which the phase property of the disturbance response of the controller with respect to the pulsation frequency is within ±45° is arranged. Therefore, the torque pulsation component generated from distortion in induction voltage or variation between phases is suppressed.
摘要翻译： 提供了一种用于抑制由个体变化引起的旋转脉动的同步电机的控制技术，而不使控制算法复杂化。 在作为同步电动机的控制装置的电动机驱动系统中，为了抑制用于驱动同步电动机的交流频率的N倍的脉动分量，控制器将其中的干扰响应的相位特性 相对于脉动频率的控制器设置在±45°以内。 因此，抑制了感应电压的变形或相位的变化而产生的转矩脉动成分。
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