The Impact of Rotor Converters on the Performance of Static Kramer Induction Motor Operating with Voltage Unbalance

The Impact of Rotor Converters on the Performance of Static Kramer Induction Motor Operating with Voltage Unbalance

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This paper presents the study of rotor power electronic converters harmonics Diecast Truck effect on the performances of the Static Kramer Induction Motor Drive Systems (SKIMDS) operating with voltage unbalance.The analysis takes into consideration a detailed calculations of rotor currents, electromagnetic torque developed and stator currents due to the rotor rectifier and inverter operations based on the brief explanation of the equivalent circuit configuration.This study is extended to investigate the stator distortion currents that are being induced in stator windings by the rotor current harmonics at frequencies which is not an integral multiple of the stator supply frequency.The relations are provided for predicting all the harmonic frequencies of the drive current and torques as a function of its supply frequency and operating slip.

The backpacks evaluated instantaneous currents show satisfactory except at a slip of one sixth where significant differences appear.