Invention Publication
EP2880758A2 ROTARY ELECTRIC MACHINE CONTROL SYSTEM AND ROTARY ELECTRIC MACHINE CONTROL METHOD
审中-公开
控制系统旋转电机和控制方法研究电动车床
- Patent Title: ROTARY ELECTRIC MACHINE CONTROL SYSTEM AND ROTARY ELECTRIC MACHINE CONTROL METHOD
- Patent Title (中): 控制系统旋转电机和控制方法研究电动车床
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Application No.: EP13785908.8Application Date: 2013-09-24
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Publication No.: EP2880758A2Publication Date: 2015-06-10
- Inventor: YAMADA, Eiji , HIRAMOTO, Kenji
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: 1, Toyota-cho, Toyota-shi, Aichi-ken, 471-8571 JP
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: 1, Toyota-cho, Toyota-shi, Aichi-ken, 471-8571 JP
- Agency: Smith, Samuel Leonard
- Priority: JP2012224373 20121009
- International Announcement: WO2014057333 20140417
- Main IPC: H02P21/00
- IPC: H02P21/00 ; H02K19/12 ; H02K19/28 ; H02K21/04 ; H02P25/02 ; H02P25/08
Abstract:
A rotary electric machine control system includes a control device that controls a rotary electric machine. When there is a current phase at which a reluctance torque is maximum between a first current phase (Θ1) of a first current vector (I
1 ) on which current pulses have not been superimposed yet and a second current phase (Θ2) of a second current vector (I
2 ) obtained by increasing a d-axis current and reducing a q-axis current, the control device sets an intermediate current vector (Im) having an intermediate phase (Θm) between the first and second current phases (Θ1, Θ2). The intermediate current vector (Im) is set so as to be larger than an imaginary current vector (Ima) at the intermediate phase (Θm) in the case where a vector locus is varied in a straight line from the first current vector (I
1 ) to the second current vector (I
2 ). The current pulses are generated by changing the current vector in order of I
1 , Im and I
2 and returning the current vector in order of Im and I
1 .
1 ) on which current pulses have not been superimposed yet and a second current phase (Θ2) of a second current vector (I
2 ) obtained by increasing a d-axis current and reducing a q-axis current, the control device sets an intermediate current vector (Im) having an intermediate phase (Θm) between the first and second current phases (Θ1, Θ2). The intermediate current vector (Im) is set so as to be larger than an imaginary current vector (Ima) at the intermediate phase (Θm) in the case where a vector locus is varied in a straight line from the first current vector (I
1 ) to the second current vector (I
2 ). The current pulses are generated by changing the current vector in order of I
1 , Im and I
2 and returning the current vector in order of Im and I
1 .
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