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    • 1. 发明授权
    • Torque ripple suppression control device for permanent magnet motor and electric power steering system
    • 用于永磁电动机和电动助力转向系统的扭矩波纹抑制控制装置
    • US08410735B2
    • 2013-04-02
    • US13009007
    • 2011-01-19
    • Kazuaki TobariYoshitaka IwajiJunnosuke NakatsugawaRikio YoshikawaMasamichi Yagai
    • Kazuaki TobariYoshitaka IwajiJunnosuke NakatsugawaRikio YoshikawaMasamichi Yagai
    • H02P21/00
    • H02P21/05
    • A torque ripple suppression control device for a permanent magnet motor includes a current command conversion unit that outputs a current command value, a position detector that detects a rotational position of the permanent magnet motor, a current detection unit that detects a current at the permanent magnet motor, an induced voltage coefficient setting unit that outputs an information signal related to an induced voltage coefficient for an induced voltage at the permanent magnet motor, a torque ripple suppression operation unit that outputs a current correction command value for the permanent magnet motor, a current control operation unit that outputs a voltage command value based upon addition results obtained by adding together the current command value and the current correction command value and the current detection value, and a power converter that outputs a voltage with which the permanent magnet motor is to be driven.
    • 用于永磁电动机的转矩脉动抑制控制装置包括输出电流指令值的电流指令转换单元,检测永磁电动机的转动位置的位置检测器,检测永久磁铁电流的电流检测单元 电动机,感应电压系数设定单元,输出与永磁电动机的感应电压的感应电压系数有关的信息信号;输出永磁电动机的电流校正指令值的转矩脉动抑制运算部, 控制操作单元,其基于通过将当前指令值和当前校正指令值与当前检测值相加而获得的加法结果输出电压指令值,以及输出永磁电动机的电压的功率转换器 驱动。
    • 8. 发明授权
    • AC motor control device and AC motor driving system
    • 交流电机控制装置和交流电机驱动系统
    • US08742704B2
    • 2014-06-03
    • US13202667
    • 2010-02-26
    • Junnosuke NakatsugawaYoshitaka IwajiNorihisa IwasakiHirokazu Nagura
    • Junnosuke NakatsugawaYoshitaka IwajiNorihisa IwasakiHirokazu Nagura
    • H02P21/00
    • H02P21/141H02P21/18H02P21/26
    • The present invention relates to an AC motor control device and, particularly, to provide an AC control device capable of simply setting a state quantity of an AC motor non-linearly variable, in accordance with the motor driving state and using the setting in motor control, the present invention can be achieved by including a state quantity calculating unit (13, 13a, 13b, 13c) for calculating a state quantity corresponding to a coil interlinkage flux which is an internal quantity of the motor, calculating a setting value of the coil interlinkage flux defined on one axis out of two axes, that is, d and q axes, with a function formula using a current defined on the same one of the axes and a function formula using a state variable defined on the other one of the axes.
    • 本发明涉及一种交流电动机控制装置,特别涉及提供一种能够根据电动机驱动状态简单地设定交流电动机的非线性变量的状态量并使用电动机控制中的设定的交流电控制装置 ,可以通过包括用于计算与作为电动机的内部量的线圈互连通量对应的状态量的状态量计算单元(13,13a,13b,13c)来计算本发明,计算线圈的设定值 在两个轴之间的一个轴上定义的互链通量,即d和q轴,其中函数公式使用在同一个轴上定义的电流,并且使用在另一个轴上定义的状态变量的函数公式 。
    • 9. 发明授权
    • Polyphase AC motor, driving device and driving method therefor
    • 多相交流电动机,驱动装置及其驱动方法
    • US08664902B2
    • 2014-03-04
    • US13264076
    • 2009-04-16
    • Norihisa IwasakiJunnosuke NakatsugawaYoshitaka Iwaji
    • Norihisa IwasakiJunnosuke NakatsugawaYoshitaka Iwaji
    • H02K29/06
    • H02P6/10H02K1/145H02K21/14H02K37/14H02P21/00H02P27/08
    • 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.
    • 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。