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Analysis of Cascaded H-Bridge Multilevel Inverter Fed Induction Motor Drives

Braj Kumar Shukla, Avinash Kumar Pate

Abstract


Large electrical drives and utility applications require advanced power electronics converter to meet high power demands, the development of electrical drives using multilevel inverter will result in increased efficiency and better drives performance (acceleration and braking). It also improves the performance of whole system in terms of harmonics, dv/dt stresses, and stresses in the bearings of a motor. Proposed research work deals with IGBT based seven level cascaded H-bridge multilevel inverter fed induction motor drives. Multilevel inverter controlling has done by using Phase opposite Disposition (POD) and Alternative phase opposition Disposition (APOD) and compared and observed that POD method is better than APOD method at 0.9 modulation index, satisfactory results are obtained with the help of MATLAB 2015a / SIMULINK.

 

Keywords: Multi carrier PWM, total harmonic distortion, cascaded H-bridge multilevel inverter

 


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References


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