发明名称 |
MOTOR CONTROL DEVICE AND WORK MACHINE USING SAME |
摘要 |
The controller estimates torque output by the motor and controls the current supplied to the motor in such a manner that a torque estimate of the motor obtained by the estimation corresponds to the torque command value. A torque estimation calculator 120 estimates the torque output by the motor. A phase error command calculator 125 calculates a command value of a phase error from the deviation between the torque estimate and a torque command value. A speed estimation calculator 130 outputs a speed estimate in such a manner that a phase error estimate corresponds to the command value of the phase error. |
申请公布号 |
KR20140051941(A) |
申请公布日期 |
2014.05.02 |
申请号 |
KR20147003427 |
申请日期 |
2012.08.10 |
申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD. |
发明人 |
TOBARI KAZUAKI;SEKINE KAZUYA |
分类号 |
H02P21/14;H02P21/00;H02P27/04 |
主分类号 |
H02P21/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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