Abstract
This work present design and analysis of multilevel inverter topology using Z source network for Induction motor drive. Z source inverter have unique feature to boost the output voltage. Multilevel inverter generate output voltages with very low distortion even common mode voltage generate by multilevel inverter is low which reduces stress in the Induction motor bearing. Utilizing all these advantages of Z source and Multilevel Inverter technology this paper introduces a new electrical drive system for Induction motor. This Z source topology reduces two conversion stages to single stage which reduces complexity, overall cost and size of an electrical drive. PWM technique is used to controlled the switching Z source multilevel Inverter (ZSMLI). MATLAB/SIMULINK software is used for simulation. It was found that the designed electrical drive circuit offer less total harmonic distortion with proposed ZSI pulse width modulation method.
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