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Comparison of square-wave and sinusoidal signal injection in sensorless polarity detection for PMSMs | IEEE Conference Publication | IEEE Xplore

Comparison of square-wave and sinusoidal signal injection in sensorless polarity detection for PMSMs


Abstract:

This paper compares the non-modulated square-wave voltage injection-based and sinusoidal voltage injection-based polarity detection methods applicable in sensorless PMSM ...Show More

Abstract:

This paper compares the non-modulated square-wave voltage injection-based and sinusoidal voltage injection-based polarity detection methods applicable in sensorless PMSM drives. A quadratic PMSM model extension is presented that serves as a basis for the polarity detection techniques. The comparison includes the polarity-dependent current components produced by the injected signals, the design parameters related to the injected signal features and their effect on the probability of correct polarity detection. The performance differences and possible application areas are also discussed.
Date of Conference: 25-28 September 2022
Date Added to IEEE Xplore: 01 December 2022
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Conference Location: Brasov, Romania

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