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Analysis of torsional vibrations on the resolver under eccentricity in pmsm drive system
, Article IEEE Sensors Journal ; Volume 22, Issue 22 , 2022 , Pages 21592-21599 ; 1530437X (ISSN) ; Feizhoseini, S ; Nasiri Gheidari, Z ; Behzad, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2022
Abstract
Since any error in the rotor angle caused by the resolver affects the entire permanent magnet synchronous motor (PMSM) control drive system, it is necessary to investigate its effect on mechanical vibrations. Torsional vibration is accordingly considered in the following study. Thereby, first, the effect of resolver errors on the harmonic content of motor current and, subsequently, torque ripple (TR) was investigated. Then, dynamical modeling is done for the generator-motor-resolver set to get the mechanical frequency response (FR) resulting from the resolver errors. Based on the above modeling, the dynamic equations (DEQs) of the system were derived, and the mechanical characteristics of...