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公开(公告)号：US20080012521A1
公开(公告)日：2008-01-17
申请号：US11574608
申请日：2005-08-18
申请人： Kazuhiro Katsumata , Takamichi Ito
发明人： Kazuhiro Katsumata , Takamichi Ito
CPC分类号： H02P21/06 , H02P21/02 , H02P21/22 , H02P2207/05
摘要： Under a low load condition, a produced torque is small and a synthetic current command I* with respect to an armature of a servomotor is small so that a magnitude in a negative direction of a reactive current command Id* determined by Id*=−|I*|·sin θ is small. As a result, under the low load condition, the synthetic current flowing through the armature can be small, and generation of wasteful heat can be suppressed. Further, under a high load condition, because a q-axis current Iq that produces the torque is large, voltage saturation is liable to occur. However, at the same time, the overall current command I* is large under the high load condition, and Id* is large in the negative direction. Therefore, a large reactive current Id can be flowed in the negative direction, and voltage saturation under the high load condition can be effectively prevented.
摘要翻译： 在低负载条件下，产生的转矩小，并且相对于伺服电动机的电枢的合成电流指令I *小，使得由Id * = - |确定的无功电流指令Id *的负方向的大小 I * | .sinθ很小。 结果，在低负载条件下，流过电枢的合成电流可以很小，并且可以抑制浪费热的产生。 此外，在高负载条件下，由于产生转矩的q轴电流Iq大，容易发生电压饱和。 然而，同时，在高负载条件下，总电流指令I *大，Id *在负方向大。 因此，大的无功电流Id可以在负方向流动，并且可以有效地防止在高负载条件下的电压饱和。
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公开(公告)号：US06674262B2
公开(公告)日：2004-01-06
申请号：US09986086
申请日：2001-11-07
IPC分类号： H02P610
摘要： A motor control apparatus comprises a fundamental current command value determining device that determines a fundamental current command value for a motor current based upon at least a torque command value for an AC motor, a higher harmonics current command value determining device that determines a higher harmonics current command value for the motor current and a current control device that controls the current flowing to the AC motor based upon the fundamental current command value and the higher harmonics current command value.
摘要翻译： 电动机控制装置包括基本电流指令值确定装置，其基于至少一个AC电动机的转矩指令值确定用于电动机电流的基本电流指令值，确定高次谐波电流的高次谐波电流指令值确定装置 基于电流指令值和高次谐波指令值，控制电动机电流的指令值和控制流向交流电动机的电流的电流控制装置。
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公开(公告)号：US20020097015A1
公开(公告)日：2002-07-25
申请号：US09986086
申请日：2001-11-07
IPC分类号： H02P007/00
摘要： A motor control apparatus comprises a fundamental current command value determining device that determines a fundamental current command value for a motor current based upon at least a torque command value for an AC motor, a higher harmonics current command value determining device that determines a higher harmonics current command value for the motor current and a current control device that controls the current flowing to the AC motor based upon the fundamental current command value and the higher harmonics current command value.
摘要翻译： 电动机控制装置包括基本电流指令值确定装置，其基于至少一个AC电动机的转矩指令值确定用于电动机电流的基本电流指令值，确定高次谐波电流的高次谐波电流指令值确定装置 基于电流指令值和高次谐波指令值，控制电动机电流的指令值和控制流向交流电动机的电流的电流控制装置。
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公开(公告)号：US5652495A
公开(公告)日：1997-07-29
申请号：US445938
申请日：1995-05-22
CPC分类号： H02P21/02 , H02P21/0089 , H02P21/06
摘要： A controller for a permanent magnet synchronous motor which includes a D-axis current command section and a Q-axis current command section. The D-axis current command section increases the command value of the D-axis current so as to set a judged value to be zero by leading the current phase when the judged value is positive. In addition, the D-axis current command section decreases the command value of the D-axis current when the judged value is negative. Moreover, the D-axis current command section holds the command value of the D-axis current at a predetermined minimum value when the decreasing command value of the D-axis current becomes smaller than the predetermined minimum value. The Q-axis current command section is responsible for supplying a command value of the Q-axis current.
摘要翻译： 一种用于永磁同步电动机的控制器，包括D轴电流指令部分和Q轴电流指令部分。 D轴电流指令部分增加D轴电流的指令值，以便当判断值为正时通过引导当前相位将判断值设置为零。 此外，当判断值为负时，D轴电流指令部分减小D轴电流的指令值。 此外，当D轴电流的减小指令值变得小于预定的最小值时，D轴电流指令部分将D轴电流的指令值保持在预定的最小值。 Q轴电流指令部分负责提供Q轴电流的指令值。
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公开(公告)号：US20170244344A1
公开(公告)日：2017-08-24
申请号：US15440231
申请日：2017-02-23
发明人： Farhad AGHILI
摘要： An energy-efficient and accurate torque control system and method for multiphase nonsinusoidal PMSM with or without open-circuited phase(s) under time-varying torque and speed conditions is based on orthogonally decomposing a phase voltage vector into two components, which become primary and secondary control inputs for torque control and energy minimizer control. The primary control system includes nonlinear feedback from measured phase currents, motor angle, motor speed, and instantaneous value of reference torque and a signature vector indicating which phase(s) is/are open-circuited to establish a first-order linear relationship between reference and generated torques. The secondary control system includes an estimator to estimate a system costate from measured phase currents, motor angle, motor speed, and instantaneous value of reference torque and the signature vector and a linear programming module with equality/inequality constraints to calculate the secondary voltage input to optimally align the overall phase voltage for maximum efficiency without saturating the inverter voltage.
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公开(公告)号：US09667187B2
公开(公告)日：2017-05-30
申请号：US14374242
申请日：2013-01-30
摘要： A motor control apparatus includes a secondary-magnetic-flux-command calculating unit including a minimum-current-secondary-magnetic-flux-command calculating unit that calculates a secondary magnetic flux command for minimizing a current root-mean-square value due to a torque current and an excitation current and a PWM-signal generating unit that generates a torque current command for outputting a desired torque command and an excitation current command for outputting the secondary magnetic flux command, performs vector control such that a q-axis current, which is a detection value of the torque current, and a d-axis current, which is a detection value of the excitation current, respectively coincide with the torque current command and the excitation current command, and generates control signals for turning on and off a switching element in an inverter.
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公开(公告)号：US20170133959A1
公开(公告)日：2017-05-11
申请号：US15341363
申请日：2016-11-02
申请人： DENSO CORPORATION
发明人： Yuki TAKAHASHI
IPC分类号： H02P6/10
摘要： A rotating electric machine drive system includes a rotating electric machine and a drive apparatus. The rotating electric machine includes a Y-connected three-phase stator coil. The drive apparatus supplies electric current to the stator coil and thereby drives the rotating electric machine. In a predetermined low-torque region, the drive apparatus supplies the stator coil with the electric current which has a waveform obtained by superimposing a specific harmonic waveform on a first-order harmonic waveform. The specific harmonic waveform is one of third-order and (3+6n)th-order harmonic waveforms, or a harmonic waveform which is obtained by synthesizing at least two of the third-order and (3+6n)th-order harmonic waveforms, where n is a natural number not less than 1. The specific harmonic waveform takes a positive integral value for a positive half cycle of the first-order harmonic waveform and a negative integral value for a negative half cycle of the first-order harmonic waveform.
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公开(公告)号：US09641115B2
公开(公告)日：2017-05-02
申请号：US14138796
申请日：2013-12-23
摘要： An air moving system including an electric motor, a load coupled to the electric motor, and a motor drive controller coupled to the electric motor is provided. A DC voltage generated from an AC input voltage provided to the electric motor tends towards zero at about twice a frequency of the AC input voltage. The motor drive controller includes an adjustment control module configured to receive a measurement of an instantaneous motor current value for the electric motor, determine a flux component value based on the instantaneous motor current value, and determine, based at least in part on the flux component value and a flux component demand value, an adjusted flux component demand value that causes the motor drive controller to adjust an operation such that an average flux component value based on the flux component value is substantially similar to the flux component demand value.
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公开(公告)号：US20160043678A1
公开(公告)日：2016-02-11
申请号：US14782759
申请日：2014-04-17
申请人： RENAULT S.A.S.
发明人： Caroline DOC , Thibaut BAUMANN
CPC分类号： H02P21/02 , B60L15/20 , B60L2220/14 , B60L2240/421 , B60L2240/423 , B60L2240/547 , B60L2260/44 , H02K11/02 , H02K11/33 , H02P21/0003 , H02P21/22 , H02P27/00 , Y02T10/643 , Y02T10/644 , Y02T10/645 , Y02T10/72 , Y02T10/7275
摘要： An electric machine combined with an electronic control unit including a set of onboard maps of a same setpoint parameter on the basis of first and second operating variables of the machine, each of the maps being associated with a different level of a third operating parameter of the electric machine. The maps include ranges of authorized values, and at least one range of extrapolated values. The electronic control unit is configured, for values of the third parameter not associated with one of the onboard maps, to use interpolated values between two authorized values, or between one authorized value and one extrapolated value.
摘要翻译： 一种与电子控制单元组合的电机，其包括基于机器的第一和第二操作变量的相同设定点参数的一组车载地图，每个地图与不同级别的第三操作参数相关联 电机。 地图包含授权值的范围，以及至少一个外推值的范围。 电子控制单元被配置为对于与车载地图之一不相关联的第三参数的值来使用两个授权值之间的内插值，或者在一个授权值和一个外推值之间。
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公开(公告)号：US20120217923A1
公开(公告)日：2012-08-30
申请号：US13036953
申请日：2011-02-28
申请人： Long Wu , Robert Shaw
发明人： Long Wu , Robert Shaw
CPC分类号： H02P21/06 , H02P21/0003 , H02P21/02 , H02P29/662
摘要： A control system for a motor includes a current regulation controller for generating a terminal voltage command. The terminal voltage command is used for converting a supply voltage to a three phase voltage to power a motor. The control system also includes a terminal voltage command feedback module for controlling the terminal voltage command. The terminal voltage command feedback module compares the terminal voltage command to a determined voltage limit of the supply voltage and generates a d-axis current adjustment command in accordance with the comparison. The d-axis current adjustment command is used for reducing the terminal voltage command below the determined voltage limit. The control system also includes a summer coupled with the terminal voltage command feedback module. The summer adds the d-axis current adjustment command to a d-axis current command received from a lookup table.
摘要翻译： 电动机的控制系统包括用于产生端子电压指令的电流调节控制器。 端子电压指令用于将电源电压转换为三相电压以为电动机供电。 控制系统还包括用于控制终端电压指令的终端电压指令反馈模块。 端子电压指令反馈模块将端子电压指令与电源电压的确定电压极限进行比较，并根据比较产生d轴电流调节指令。 d轴电流调节指令用于将端子电压指令降低到低于确定的电压极限。 控制系统还包括与终端电压指令反馈模块耦合的夏季。 夏天将d轴电流调节命令添加到从查找表接收的d轴当前命令。
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