公开(公告)号：US08330402B2

公开(公告)日：2012-12-11

申请号：US12690904

申请日：2010-01-20

申请人： Kozo Ide ,  Shinya Morimoto ,  Masanobu Inazumi ,  Young Doo Yoon ,  Seung-ki Sul

发明人： Kozo Ide ,  Shinya Morimoto ,  Masanobu Inazumi ,  Young Doo Yoon ,  Seung-ki Sul

IPC分类号： H02P21/00

CPC分类号： H02P21/32 ,  H02P21/18 ,  H02P2203/11

摘要： An alternating-current motor control apparatus includes a voltage controller configured to output a command voltage vector so that the command voltage vector is time-averaged for time periods, a square-wave voltage generator configured to control, every time period, amplitudes and phases of voltages to be applied to an alternating-current motor, a current detector configured to detect motor currents at a timing synchronized with periods 1/N-th of the time periods, where N is equal to or larger than one, a coordinate transformation section configured to perform coordinate transformation to transform the motor currents into two-phase currents, an envelope extractor configured to extract two-phase currents as waveforms having amplitudes that periodically change from the two-phase currents, and extract envelopes of the waveforms, and a magnetic-pole-position computing section configured to compute a magnetic-pole position using the envelopes.

摘要翻译： 交流电动机控制装置包括：电压控制器，其被配置为输出指令电压矢量，使得指令电压矢量对于时间段进行时间平均;方波电压发生器，被配置为控制每个时间段的幅度和相位 施加到交流电动机的电压;电流检测器，被配置为在与N等于或大于1的时间段的时间段1 / N之间同步的定时检测电动机电流;坐标变换部分配置 执行坐标变换以将电动机电流转换为两相电流;包络提取器，被配置为将两相电流提取为具有从两相电流周期性变化的幅度的波形，并提取波形的包络线; 磁极位置计算部件，被配置为使用所述包络来计算磁极位置。

公开(公告)号：US20100207555A1

公开(公告)日：2010-08-19

申请号：US12690904

申请日：2010-01-20

申请人： Kozo IDE ,  Shinya MORIMOTO ,  Masanobu INAZUMI ,  Young Doo YOON ,  Seung-ki SUL

发明人： Kozo IDE ,  Shinya MORIMOTO ,  Masanobu INAZUMI ,  Young Doo YOON ,  Seung-ki SUL

IPC分类号： H02P21/14

CPC分类号： H02P21/32 ,  H02P21/18 ,  H02P2203/11

摘要： An alternating-current motor control apparatus includes a voltage controller configured to output a command voltage vector so that the command voltage vector is time-averaged for time periods, a square-wave voltage generator configured to control, every time period, amplitudes and phases of voltages to be applied to an alternating-current motor, a current detector configured to detect motor currents at a timing synchronized with periods 1/N-th of the time periods, where N is equal to or larger than one, a coordinate transformation section configured to perform coordinate transformation to transform the motor currents into two-phase currents, an envelope extractor configured to extract two-phase currents as waveforms having amplitudes that periodically change from the two-phase currents, and extract envelopes of the waveforms, and a magnetic-pole-position computing section configured to compute a magnetic-pole position using the envelopes.

摘要翻译： 交流电动机控制装置包括：电压控制器，其被配置为输出指令电压矢量，使得指令电压矢量对于时间段进行时间平均;方波电压发生器，被配置为控制每个时间段的幅度和相位 施加到交流电动机的电压;电流检测器，被配置为在与N等于或大于1的时间段的时间段1 / N之间同步的定时检测电动机电流;坐标变换部分配置 执行坐标变换以将电动机电流转换为两相电流;包络提取器，被配置为将两相电流提取为具有从两相电流周期性变化的幅度的波形，并提取波形的包络线， 磁极位置计算部件，被配置为使用所述包络来计算磁极位置。