发明名称 |
Apparatus and method for driving synchronous motor |
摘要 |
The synchronous motor driving apparatus including position sensors provided in the synchronous motor, a current polarity detection circuit for detecting the polarities of the currents in the respective phase windings of the synchronous motor, an inverter driving the synchronous motor, a motor speed calculation unit calculating the rotational speed of the synchronous motor depending on the output signals from the position sensors, a speed control unit outputting a first voltage adjusting component (q-axis current command value Iq*) to cause the rotational speed of the synchronous motor to approach a speed command value and a phase control unit outputting a second voltage adjusting component (d-axis current command value Id*) to cause the phase differences between the phases of the position sensor signals and of the currents in the respective phase windings of the synchronous motor to become a predetermined value.
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申请公布号 |
US8035330(B2) |
申请公布日期 |
2011.10.11 |
申请号 |
US20100897880 |
申请日期 |
2010.10.05 |
申请人 |
HITACHI, LTD.;HITACHI INFORMATION & CONTROL SOLUTIONS, LTD. |
发明人 |
MAEDA DAISUKE;ENDO TSUNEHIRO;SHIRAHAMA HIDEFUMI;SAKURAI KENJI;HASEGAWA HIROYUKI;MISHIMA MITSUHIRO |
分类号 |
H02P27/04 |
主分类号 |
H02P27/04 |
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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