发明名称 |
VARIABLE-FLUX MOTOR DRIVE SYSTEM |
摘要 |
The present invention provides a variable-flux motor drive system including a permanent-magnet motor 4 having a permanent magnet, an inverter 1 to drive the permanent-magnet motor, and a magnetize means to pass a magnetizing current for controlling the flux of the permanent magnet. The permanent magnet is a variable magnet whose flux density is variable depending on a magnetizing current from the inverter 1. The magnetize means passes a magnetizing current that is over a magnetization saturation zone of magnetic material of the variable magnet. This system improves a flux repeatability of the variable magnet 53 and a torque accuracy. |
申请公布号 |
CA2659088(C) |
申请公布日期 |
2013.07.09 |
申请号 |
CA20072659088 |
申请日期 |
2007.07.24 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
YUUKI, KAZUAKI;SAKAI, KAZUTO;MOCHIKAWA, HIROSHI |
分类号 |
H02P21/00;H02K1/27;H02P6/08;H02P27/04 |
主分类号 |
H02P21/00 |
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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