发明名称 |
CONTROL SYSTEM FOR AC ELECTRIC MOTOR |
摘要 |
Fluctuations in output of an AC electric motor are restrained without increasing electromagnetic noise of a boost converter. When subjecting the AC electric motor to rectangular wave voltage control, output torque T is controlled by varying a voltage phaseφv. In a region where a voltage phase is large (φv=θ2), fluctuations in torque T relative to changes in a DC voltage VH corresponding to the amplitude of a rectangular wave voltage are larger than in a region where the voltage phase is small (φv=θ1). The AC electric motor is controlled such that the rectangular wave voltage control in a region where voltage phaseφv is larger than a limit-phase line PLN indicated by a set of limit phases set for each DC voltage VH is avoided. |
申请公布号 |
US2014125264(A1) |
申请公布日期 |
2014.05.08 |
申请号 |
US201314073146 |
申请日期 |
2013.11.06 |
申请人 |
NAKAMURA MAKOTO;YAMAZAKI MIKIO;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
NAKAMURA MAKOTO;YAMAZAKI MIKIO |
分类号 |
H02P6/10 |
主分类号 |
H02P6/10 |
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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