发明名称 |
Synchronous motor control device and method of correcting deviation in rotational position of synchronous motor |
摘要 |
In a synchronous motor control device that corrects a deviation in rotational position which is related to a rotational position detector for a synchronous motor on which vector-control is performed, the synchronous motor control device includes: a current instruction generator that disables a torque instruction to set d-axis and q-axis current instructions as zero when a phase correction instruction is inputted; a current controller that outputs d-axis and q-axis voltage instructions based on the d-axis and q-axis current instructions; a phase correction quantity detector for determining the amount of offset in which the d-axis voltage instruction becomes zero when the phase correction instruction is inputted and the d-axis voltage instruction is not zero; an adder for adding a rotor positional angle and the amount of offset; and a voltage converter for determining three-phase voltage instructions based on the additional value, the d-axis and q-axis voltage instructions.
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申请公布号 |
US2005104551(A1) |
申请公布日期 |
2005.05.19 |
申请号 |
US20040784964 |
申请日期 |
2004.02.25 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
NISHIMURA SHINJI;NAKAYAMA MASAKAZU |
分类号 |
H02P6/16;H02P21/08;H02P25/02;H02P27/06;(IPC1-7):H02P5/28 |
主分类号 |
H02P6/16 |
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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