-
公开(公告)号：US08258732B2
公开(公告)日：2012-09-04
申请号：US12367036
申请日：2009-02-06
CPC分类号： H02P6/20
摘要： A drive system of a permanent magnet motor is constituted of a mode switching trigger generator which monitors a state of a permanent magnet motor and issues a mode switching trigger, a conduction mode determining unit which receives the mode switching trigger and switches the mode of the permanent magnet motor, and a PWM generator which outputs a PWM signal to an inverter in accordance with the output of the conduction mode determining unit. The mode switching trigger is generated on condition that the speed electromotive force of the permanent magnet motor exceeds a constant or variable threshold value.
摘要翻译： 永磁电动机的驱动系统由监视永磁电动机的状态并发出模式切换触发的模式切换触发发生器构成，导通模式确定单元接收模式切换触发并切换永久磁铁的模式 磁电机和PWM发生器，其根据导通模式确定单元的输出将PWM信号输出到逆变器。 在永磁电动机的速度电动势超过常数或可变阈值的条件下产生模式切换触发。
-
公开(公告)号：US20110234133A1
公开(公告)日：2011-09-29
申请号：US13052519
申请日：2011-03-21
申请人： Masaki Hano , Yoshitaka Iwaji , Shigehisa Aoyagi
发明人： Masaki Hano , Yoshitaka Iwaji , Shigehisa Aoyagi
CPC分类号： H02P6/182
摘要： The present invention relates to a drive apparatus and drive method for switching an energization mode when a voltage of a non-energized phase of a brushless motor crosses a threshold. In threshold learning, first, the brushless motor is stopped at an initial position. The brushless motor is then rotated by performing phase energization based on the energization mode from the stopped state. The voltage of the non-energized phase at an angular position of switching the energization mode is detected from a maximum value or a minimum value of the voltage of the non-energized phase during the rotation, and the threshold is learned based on the detected voltage. Alternatively, the brushless motor is positioned at the angular position of switching the energization mode by maintaining one energization mode, and then the energization mode is switched to the next energization mode. The voltage of the non-energized phase immediately after the switching to the energization mode is detected, and the detected voltage of the non-energized phase is learned as the threshold used to determine the timing of switching to the next energization mode.
摘要翻译： 本发明涉及一种驱动装置和驱动方法，用于当无刷电动机的非通电阶段的电压超过阈值时切换通电模式。 在阈值学习中，首先，将无刷电动机停在初始位置。 然后通过基于从停止状态的通电模式执行相通电来使无刷电动机旋转。 在切换通电模式的角位置处的无通电相位的电压是从旋转期间的非通电相的电压的最大值或最小值检测的，并且基于检测到的电压来学习阈值 。 或者，无刷电动机通过维持一个通电模式而位于切换通电模式的角位置，然后将通电模式切换到下一个通电模式。 检测到切换到通电模式之后的非通电阶段的电压，并且将未通电阶段的检测电压学习为用于确定切换到下一个通电模式的定时的阈值。
-
公开(公告)号：US07839663B2
公开(公告)日：2010-11-23
申请号：US12335867
申请日：2008-12-16
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
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。
-
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。
-
公开(公告)号：US20080169783A1
公开(公告)日：2008-07-17
申请号：US11843686
申请日：2007-08-23
IPC分类号： H02P27/08
CPC分类号： H02P21/09 , H02P21/16 , H02P2207/01
摘要： The present invention provides an induction motor controller which includes: a circuit for generating a d-axis current reference signal from a d-axis current command value and a periodically varying periodic signal; a d-axis current controller for controlling a d-axis motor current flowing through an induction motor to be controlled to match the d-axis current reference signal; parameter determining means for calculating and determining a motor parameter of the induction motor based on a deviation of the d-axis motor current from the d-axis current reference signal, and controlling a voltage applied to the induction motor using a compensation voltage calculated from the calculated and determined motor parameter, in which a control parameter for controlling the induction motor is set based on the calculated and determined motor parameter.
摘要翻译： 本发明提供一种感应电动机控制器，其包括：用于根据d轴电流指令值和周期性变化的周期信号产生d轴电流参考信号的电路; d轴电流控制器，用于控制流过感应电动机的d轴电动机电流以被控制以匹配d轴电流参考信号; 参数确定装置，用于基于d轴电动机电流与d轴电流参考信号的偏差来计算和确定感应电动机的电动机参数，并且使用从所述d轴电流参考信号计算的补偿电压来控制施加到感应电动机的电压 计算和确定的电动机参数，其中基于所计算和确定的电动机参数来设定用于控制感应电动机的控制参数。
-
公开(公告)号：US07276876B2
公开(公告)日：2007-10-02
申请号：US11206211
申请日：2005-08-18
IPC分类号： H02P27/04
CPC分类号： H02P6/18 , H02P21/18 , H02P2203/01 , H02P2207/05
摘要： A synchronous motor driving apparatus having a power converter which applies AC variable voltages having variable frequency to a synchronous motor includes a pulsating current application unit for applying pulsating current to the synchronous motor and a magnetic pole position presumption unit. The magnetic pole position presumption unit detects two current values ΔIdcp1 and ΔIdcp2 on the positive side and two current values ΔIdcn1 and ΔIdcn2 on the negative side of the pulsating current and presumes the magnetic pole position of the synchronous motor on the basis of difference between change rates of ΔIdcp1→ΔIdcp2 and ΔIdcp1→ΔIdcp2.
摘要翻译： 具有向同步电动机施加可变频率的交流可变电压的电力转换器的同步电动机驱动装置包括用于向同步电动机施加脉动电流的脉动电流施加单元和磁极位置推定单元。 磁极位置推测单元在脉动电流的负侧检测正极侧的两个电流值DeltaIdcp 1和DeltaIdcp 2，并且在脉动电流的负侧检测两个电流值DeltaIdcn 1和DeltaIdcn 2，并且基于同步电动机的磁极位置 DeltaIdcp 1 - > DeltaIdcp 2和DeltaIdcp 1 - > DeltaIdcp 2的变化率之间的差异。
-
公开(公告)号：US20070216335A1
公开(公告)日：2007-09-20
申请号：US11724260
申请日：2007-03-15
申请人： Akio Takemori , Yoshifumi Kuwano , Hiroaki Taka , Yoshitaka Iwaji
发明人： Akio Takemori , Yoshifumi Kuwano , Hiroaki Taka , Yoshitaka Iwaji
IPC分类号： G05B19/40
摘要： A stepping motor controlling device according to the present invention includes lead angle computing means which computes a lead angle according to the load torque current deviation of the stepping motor, adding means which adds an angle command to the lead angle to determine a winding exciting angle and voltage applying means which applies a voltage according to the winding exciting angle to the stepping motor.
摘要翻译： 根据本发明的步进电机控制装置包括引导角计算装置，其根据步进电机的负载转矩电流偏差来计算引导角;加法装置，其将角度指令与引导角相加以确定缠绕激励角;以及 电压施加装置，其向步进电机施加根据卷绕激励角的电压。
-
公开(公告)号：US20070013333A1
公开(公告)日：2007-01-18
申请号：US11486151
申请日：2006-07-14
IPC分类号： H02P7/00
CPC分类号： H02P6/18
摘要： The AC motor driving apparatus comprises an inverter for supplying power to an AC motor, current sensors for detecting current that flows in the motor or inverter, a rotation sensor for detecting the rotation of the rotor in the motor, and a control unit for controlling the driving of the inverter. A current detection value detected by the current sensor and a rotor rotational position are used to estimate three-phase motor current values. The estimated motor current values are used to control the inverter. Thereby, an inexpensive, space-saving AC motor driving apparatus as well as an AC motor controller, electric actuator, or vehicle that can perform highly precise torque control from zero speed to high-speed rotation without depending on the PWM pulse pattern are provided.
-
公开(公告)号：US07075266B2
公开(公告)日：2006-07-11
申请号：US10809530
申请日：2004-03-26
CPC分类号： H02P21/06
摘要： A method controls a torque of an a. c. motor which does not cause a shortage of torque by using an economical current detection which estimates d- and q-axis currents Idc, Iqc from d. c. current IDC flowing through an input d. c. bus line of a power converter. A value of d- and q-axis motor currents Id, Iq of a rotational coordinate system are estimated from detected input d. c. current IDC flowing through the bus line of the power converter to which power is input from a d. c. power source 21. A output voltages of the power converter 2 are controlled so that the estimated currents Idc, Iqc are equal to respective current instruction values Id*, Iq*. Errors of motor constants are determined from information on the motor currents and the rotational phase errors by an operation.
摘要翻译： 一种方法控制a的转矩。 C。 电动机，其不会通过使用从d估计d轴和q轴电流Idc，Iqc的经济电流检测来引起扭矩不足。 C。 当前IDC流过输入d。 C。 总线电源转换器。 从检测输入d估计旋转坐标系的d轴和q轴电动机电流Id，Iq的值。 C。 当前IDC流经从d输入电力的功率转换器的总线。 C。 电源21。 控制功率转换器2的输出电压，使得估计电流Idc，Iqc等于各自的电流指令值Id *，Iq *。 电机常数的误差由电机电流和旋转相位误差信息决定。
-
公开(公告)号：US20060055362A1
公开(公告)日：2006-03-16
申请号：US11205907
申请日：2005-08-17
申请人： Kazuaki Tobari , Kiyoshi Sakamoto , Tsunehiro Endo , Yoshitaka Iwaji , Yukio Kawabata , Shigehisa Aoyagi
发明人： Kazuaki Tobari , Kiyoshi Sakamoto , Tsunehiro Endo , Yoshitaka Iwaji , Yukio Kawabata , Shigehisa Aoyagi
IPC分类号： H02P6/00
摘要： A vector control system for a permanent magnet synchronous motor, using a current control equivalent output value, a frequency instruction value, a current detection value, an inference phase error value, and a motor constant, identifies a motor resistance equivalent or a resistance setting error equivalent. Next, the vector control unit, using the identified value, corrects a set value R* equivalent of a voltage instruction calculation unit and a n inference phase error calculation unit. Thereby, a vector control system for a permanent magnet synchronous motor can realize a robust control characteristic for changing of a resistance constant of a motor in a low rotation speed area under position sensor-less control. Further, a vector control system for a permanent magnet synchronous motor can be applied in common in a system performing inexpensive current detection.
摘要翻译： 用于永磁同步电动机的矢量控制系统使用电流控制等效输出值，频率指令值，电流检测值，推断相位误差值和电动机常数来识别电动机电阻等效或电阻设定误差 当量。 接下来，使用识别值的矢量控制单元校正电压指令计算单元和n推定相位误差计算单元的设定值R *等效值。 由此，用于永磁同步电动机的矢量控制系统可实现用于在无位置传感器控制下在低转速区域中改变电动机的电阻常数的鲁棒控制特性。 此外，用于永磁同步电动机的矢量控制系统可以在执行廉价电流检测的系统中普遍应用。
-
-
-
-
-
-
-
-
-
搜索结果
79 条记录 (耗时 0.036 秒)
