发明名称 |
Variable-flux motor drive system |
摘要 |
A variable-flux motor drive system including a permanent-magnet motor including a permanent magnet, an inverter to drive the permanent-magnet motor, and a magnetize device to pass a magnetizing current for controlling 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. The magnetize device 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 and a torque accuracy.
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申请公布号 |
US8552678(B2) |
申请公布日期 |
2013.10.08 |
申请号 |
US201213425032 |
申请日期 |
2012.03.20 |
申请人 |
YUUKI KAZUAKI;SAKAI KAZUTO;MOCHIKAWA HIROSHI;KABUSHIKI KAISHA TOSHIBA |
发明人 |
YUUKI KAZUAKI;SAKAI KAZUTO;MOCHIKAWA HIROSHI |
分类号 |
H02P1/46 |
主分类号 |
H02P1/46 |
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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