Método de Controle de Corrente para a Redução de Ripple de Torque de uma PMSM Não-Senoidal

Lucas Rossato Rocha; Eduardo Cattani Silva; Paulo Henrique Alves Silva e Silva; Rodrigo Padilha Vieira

doi:10.20906/CBA2022/3620

Lucas Rossato Rocha Programa de Pós-Graduação em Engenharia Elétrica, Universidade Federal de Santa Maria, RS
Eduardo Cattani Silva Programa de Pós-Graduação em Engenharia Elétrica, Universidade Federal de Santa Maria, RS
Paulo Henrique Alves Silva e Silva Programa de Pós-Graduação em Engenharia Elétrica, Universidade Federal de Santa Maria, RS
Rodrigo Padilha Vieira Programa de Pós-Graduação em Engenharia Elétrica, Universidade Federal de Santa Maria, RS

DOI: https://doi.org/10.20906/CBA2022/3620

Keywords: PMSM, Torque ripple, Resonant controller, State space, Ackerman

Abstract

This work presents a control method applied to a non-sinusoidal PMSM in order to reduce the torque ripple. Due to the machine’s back-electromotive force (Back-EMF) not having a sinusoidal shape, there will be a torque ripple due to the interaction of the Back-EMF and the stator currents when classic vector control methods are used. In order to mitigate this problem, resonant controllers will be configured to minimize the 6th and 12th harmonics in the quadrature axis current. A state feedback controller is used and the controller gains are calculated by pole placement through the Ackerman Method. For the practical implementation, interpolating polynomials will be used that will allow to reduce the computational efforts. Simulation results demonstrate the effectiveness of the method to reduce torque ripple and improve machine electrical performance.