Devisree Sasi
MAR ATHANASIUS COLLEGE OF ENGINEERING MAHATMA GANDHI UNIVERSITY KERALA INDIA

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Generalized SVPWM Algorithm for Two Legged Three Phase Multilevel Inverter Devisree Sasi; Jisha Kuruvilla P; Anish Gopinath
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 3, No 3: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper establishes the inherent fractal structure in the space vector representation of two legged three phase multilevel inverters. The established fractal structure is utilized to propose a generalized algorithm for space vector PWM generation for two legged multilevel inverters. The voltage space vectors of higher level inverters can be generated from the voltage space vectors of equivalent 2-level inverter. The proposed algorithm can be easily extended to n-level inverters without any computational complexity and it doesn’t use any look up table for sector identification. The paper explains the proposed method for 5-level inverter and simulation results are presented for 2-level, 3-level and 5-level configurations in MATLAB/SIMULINK.DOI: http://dx.doi.org/10.11591/ijpeds.v3i3.4099