发明名称 |
MOTOR CONTROL APPARATUS AND MAGNETIC-POLE POSITION DETECTION METHOD THEREFOR |
摘要 |
<p>Provided is a motor control apparatus and a control method therefor, wherein robust magnetic-pole position detection is conducted without being affected by magnetic saturation of the motor rotor, using the hysteresis characteristic of the motor. The motor control apparatus is provided with a current profile generator (111) that generates a current profile; a search voltage calculator (110) that calculates a search voltage pulse on the basis of the current profile, and adds the search voltage pulse to a d-axis voltage command; a magnetic-pole position detector (106) that detects the magnetic-pole position of a permanent magnet motor on the basis of the search voltage pulse; a polarity distinguishing-evaluating current calculator (108) that calculates a polarity distinguishing-evaluating current for distinguishing the magnetic-pole polarity of the permanent magnet motor, from a d-axis current value of the motor current detected by synchronizing with the cycle of the PWM control; and a polarity detector (109) that outputs a phase correction amount from the deviation between the polarity distinguishing-evaluating current and the current command.</p> |
申请公布号 |
WO2011077829(A1) |
申请公布日期 |
2011.06.30 |
申请号 |
WO2010JP69041 |
申请日期 |
2010.10.27 |
申请人 |
KABUSHIKI KAISHA YASKAWA DENKI;IDE, KOZO;HISATSUNE, MASAKI |
发明人 |
IDE, KOZO;HISATSUNE, MASAKI |
分类号 |
H02P6/18;H02P21/00;H02P27/04 |
主分类号 |
H02P6/18 |
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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