Simulation and Implementation of Cascaded H-Bridge Five Level Inverter using Reduced Number of Switches
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2015-12-22T09:01:13Z
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The power electronics device which converts DC power to AC power at required output voltage and frequency level is known as inverter. Inverters can be broadly classified into single level inverter and multilevel inverter. We are implementing single phase five level cascaded Multilevel inverter by using only five switches and two dc sources. The main objective of this project is to increase number of levels with low number of switches and sources at the output. Multilevel inverter as compared to Single level inverters have advantages like minimum harmonic distortion, reduced EMI/RFI generation and can operate on several voltage levels. It is justified that the new topology can be recommended to single phase five level Cascaded with conventional method H-bridge inverters. As in the conventional method of gating the power circuit we are implementing the Digital Switching Scheme in place of it. We could able to achieve the better . A multi-stage inverter is being utilized for multipurpose applications, such as active power filters, static var compensators and machine drives for sinusoidal and trapezoidal current applications. The drawbacks are the isolated power supplies required for each one of the stages of the multiconverter and it’s also lot harder to build, more expensive, harder to control in software. Simulation is done using PSIM 9.02.The results are shown in the report.
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Simulation and Implementation of Cascaded H-Bridge Five Level Inverter using Reduced Number of Switches, Arun Kumar B, Sudheer Kumar C V