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Modeling and Simulation of Micro Grid System Based on Renewable Power Generation Units by using Multilevel Converter

K.Venkateswarlu, J.Krishna Kishore . " Vol.1 - Issue 6 (August- 2012) ", Modeling and Simulation of Micro Grid System Based on Renewable Power Generation Units by using Multilevel Converter, International Journal of Engineering Research & Technology (IJERT) , ISSN: 2278-0181 , www.ijert.org

K.Venkateswarlu, J.Krishna Kishore. (Modeling and Simulation of Micro Grid System Based on Renewable Power Generation Units by using Multilevel Converter ) . " Vol.1 - Issue 6 (August- 2012) ", International Journal of Engineering Research & Technology (IJERT) , ISSN: 2278-0181 , www.ijert.org

Authors: K.Venkateswarlu, J.Krishna Kishore
Publication Date: 30-08-2012


Abstract- The concept of multilevel inverters introduced about 20 years ago entails performing power conversion in multiple voltage steps to obtain improved power quality, lower switching losses, better electromagnetic compatibility, and higher voltage capability. The benefits are especially clear for medium-voltage drives in industrial applications and are being considered for future naval ship propulsion systems. Several topologies for multilevel inverters have been proposed over the years; the most popular cascaded H-bridge apart from other multilevel inverters is the capability of utilizing different dc voltages on the individual H-bridge cells which results in splitting the power conversion amongst higher-voltage lower- frequency and lower-voltage higher-frequency inverters. Considering the cascaded inverter to be one unit, it can be seen that a higher number of voltage levels are available for a given number of semiconductor devices. In this paper a 5 level Cascaded H-Bridge for micro grid application is proposed. Considering the system as separate inverters, the cascaded design can be regarded as a combination of a bulk power (higher-voltage) inverter and a conditioning (lower-power) inverter. A SIMULINK based model is developed and Simulation results are presented.



Author(s):  K.Venkateswarlu, J.Krishna Kishore

Published in:   International Journal of Engineering Research & Technology

Website: www.ijert.org

Volume/Issue:   Vol.1 - Issue 6 (August- 2012)

e-ISSN:   2278-0181


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