SINGLE-PHASE LINE START PERMANENT MAGNET SYNCHRONOUS MOTOR WITH SKEWED STATOR
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Department of Electrical Machines, Drives and Measurements
Corresponding author
Maciej Gwozdziewicz
Department of Electrical Machines, Drives and Measurements, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
Power Electronics and Drives 2016;1 (36)(2):187-194
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ABSTRACT
Background: The article deals with single-phase line start permanent magnet synchronous motor with skewed stator. Material and methods: Constructions of two physical motor models are presented. Field-circuit motor models were applied in Maxwell software. After software calculations two physical motor models were built: with skewed and unskewed stator. Results of the motors running properties are analysed. Results: Laboratory investigation shows that single-phase line start permanent magnet synchronous motor with skewed stator has noteworthy less torque ripple and vibration but simultaneously a little bit lower efficiency. Conclusions: Application of skewed stator in single-phase line start permanent magnet synchronous motor causes:
- a little bit lower back EMF,
- a little bit lower efficiency,
- less torque ripple,
- less motor vibration.