公开(公告)号：US20090267550A1

公开(公告)日：2009-10-29

申请号：US12429515

申请日：2009-04-24

申请人： Hajime HIDA ,  Yoshio TOMIGASHI ,  Kenji UEYAMA

发明人： Hajime HIDA ,  Yoshio TOMIGASHI ,  Kenji UEYAMA

IPC分类号： H02P6/10 ,  H02P9/00

CPC分类号： H02P21/22

摘要： To estimate a fluctuation component of the torque generated at the motor accurately, a motor control device (3) which controls a motor with a stator having armature winding and a rotor having a permanent magnet is provided to include a torque fluctuation component estimation unit for estimating a torque fluctuation component generated at the motor based on flux-linkage of the armature winding and an armature current that flows the armature winding. The torque fluctuation component estimation unit estimates the torque fluctuation component, (Trp) based on an inner product (Fd·id+Fq·iq) of a flux-linkage vector which is a vectorial representation of the flux-linkage and a current vector which is a vectorial representation of the armature current.

摘要翻译： 为了精确地估计在电动机上产生的扭矩的波动分量，设置控制具有电枢绕组的定子的电动机的电动机控制装置（3）和具有永久磁铁的转子，包括：扭矩波动分量估计单元，用于估计 基于电枢绕组的磁通和在电枢绕组上流动的电枢电流在电动机上产生的转矩波动分量。 转矩波动分量估计单元基于作为磁链的矢量表示的磁通矢量的内积（Fd.id + Fq.iq）和电流矢量来估计转矩波动成分（Trp） 是电枢电流的矢量表示。

公开(公告)号：US20080252250A1

公开(公告)日：2008-10-16

申请号：US12101707

申请日：2008-04-11

申请人： Hajime HIDA ,  Shunya SAKAMOTO

发明人： Hajime HIDA ,  Shunya SAKAMOTO

IPC分类号： H02P27/06

CPC分类号： H02P25/00 ,  H02M7/5395 ,  H02M2001/0009 ,  H02P21/00 ,  H02P21/14

摘要： A motor control device has: a motor current detecting portion for detecting, based on a current flowing between an inverter that drives a three-phase motor and a direct-current power supply, a motor current flowing through the motor; a specified voltage value producing portion for producing, based on the motor current, a specified voltage value as a target value for a voltage to be applied to the motor, and outputting the specified voltage value thus produced; a specified voltage value holding portion for holding an earlier specified voltage value outputted from the specified voltage value producing portion; and a specific period setting portion for setting a specific period based on a voltage difference between two of U-phase, V-phase, and W-phase voltages of the motor. Outside the specific period, the motor is controlled via the inverter based on the specified voltage value outputted from the specified voltage value producing portion, and, within the specific period, the motor is controlled via the inverter based on the specified voltage value held by the specified voltage value holding portion.

摘要翻译： 电动机控制装置具有：电动机电流检测部，其基于在驱动三相电动机的逆变器与直流电源之间流动的电流检测流过电动机的电动机电流; 指定电压值产生部分，用于基于电动机电流将指定的电压值作为用于施加到电动机的电压的目标值，并输出由此产生的指定电压值; 指定电压值保持部分，用于保持从指定电压值产生部分输出的较早指定的电压值; 以及特定时段设定部分，用于基于电动机的U相，V相和W相电压的两个之间的电压差来设定特定周期。 在该特定时段之外，通过变频器基于从指定电压值产生部输出的指定电压值来控制电动机，并且在该特定时段内，通过变频器基于所保持的规定电压值来控制电动机 指定电压值保持部。