RESEARCH STUDY ON IMPROVE POWER QUALITY USING CASCADED MULTI-LEVEL INVERTER

RESEARCH STUDY ON IMPROVE POWER QUALITY USING CASCADED MULTI-LEVEL INVERTER

¹ Ms. Dipali  Ghumade Electrical Dept.VIT,College

². Souras Ghotekar ,Electrical Dept.VIT,College

³Prof. Saurab Lawate, Electrical Dept,Vit,College

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Abstract - The cascaded multilevel inverter (CMLI) has gained much attention in recent years due to its advantages in high voltage and high power with low harmonics applications. A standard cascaded multilevel inverter requires n DC sources for 2n+1 levels at the output, where n is the number of inverter stages. This paper presents a topology to control cascaded multilevel inverter that is implemented with multiple DC sources to get 2n+1 – 1 levels. With using Pulse Width Modulation (PWM) technique, the firing circuit can be implemented which greatly reduces the Total Harmonic Distortion (THD) and switching losses..