Abstract
Traditional stator iron loss models lack precision when they are used for loss optimization of permanent-magnet synchronous motor (PMSM), because nonuniform distribution and nonsinusoidal waveform of the flux density in stator core are not fully considered. In this article, a new model is developed with a higher precision, in which the nonuniform flux density in stator core is observed through two virtual coils wounded on the yoke and tooth of a finite element model. Then, the stator iron loss is calculated depending on induced voltages of the coils. Moreover, nonsinusoidal waveform of the flux density is considered in the development. Based on this model, a loss-optimization method is proposed, in which the optimal current reference is determined by minimizing the stator loss under a constraint of ripple-free torque. Limitations of DC voltage supply and current amplitude are also considered to improve robustness of the method. Finally, precision of the iron loss model and performance of the loss-optimization method are validated experimentally on a 3.8-kW PMSM setup.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Journal of Emerging and Selected Topics in Power Electronics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
