Improving dynamics of repetitive control based current harmonic mitigation in inverter-fed permanent magnet synchronous machines with nonlinear magnetics
Abstract:Inverter nonlinearities and machine spatial harmonics yield unwanted machine current harmonics causing noise, vibration, additional losses and torque ripples. In this paper the dynamics of a repetitive control based mitigation method are analysed. The proposed scheme identifies voltage errors and compensates their effects online for interior permanent magnet synchronous machines with nonlinear magnetics. It requires no additional sensors and only fundamental machine model parameters. Test bench measurements of… Show more
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