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Magnet flux amount estimation device, synchronous motor driving device, and electric motor car
Magnet flux amount estimation device, synchronous motor driving device, and electric motor car
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机译:磁通量推定装置,同步电动机驱动装置以及电动汽车
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摘要
According to one embodiment, a magnet flux amount estimation device includes a magnetic pole position detector configured to detect a magnetic pole position of a permanent magnet synchronous motor including a permanent magnet within a rotor; an inductance-equivalent value determination module configured to determine an inductance-equivalent value of a d-axis corresponding to a determined magnetic pole direction; and a magnet flux amount estimator configured to calculate an estimation value of a magnet flux amount of the permanent magnet, based on the inductance-equivalent value.
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