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Magnetic pole position detecting device for detecting magnetic pole position of rotor in permanent-magnet synchronous motor
Magnetic pole position detecting device for detecting magnetic pole position of rotor in permanent-magnet synchronous motor
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机译:用于检测永磁同步电动机转子磁极位置的磁极位置检测装置
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摘要
A magnetic pole position detecting device includes a calculating unit for correcting a magnetic pole position detected by a magnetic pole position detecting unit. In this magnetic pole position detecting device, an additional phase is added to the magnetic pole position detected by the magnetic pole position detecting unit, in order to move a rotor. In relation to a movement amount before and after this movement, a movement amount detected by the magnetic pole position detecting unit is compared with a movement amount detected by an encoder. When a difference between them is larger than a predetermined threshold, a process of detecting the magnetic pole position is determined as false detection.
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