A New Hybrid Cascaded Multilevel Inverter Fed Induction Motor Drive with Mitigation of Bearing Currents and Low Common Mode Voltage
نویسنده
چکیده
This paper deals with new hybrid multilevel inverter fed induction motor drive. It focuses on the different topologies to mitigate the common mode voltages, bearing currents and their effects on the drive. In proposed topology, the total harmonic distortion (THD) is reduced with more number of steps in output voltage without using pulse width modulation techniques. The main advantage of this proposed topology is the insulation required in the motor is reduced due to low common mode voltage and mitigation of bearing currents. A new method is proposed to reduce the common mode voltage and bearing currents. This paper also focuses on the adverse effects of bearing currents in the motor drive. Simulation results obtained from Matlab/Simulink to simulate the output voltage and the parameters of the drive.
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