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2014•International Journal of Advanced Research in Electrical Electronics and Instrumentation EngineeringOpen access

Simulation of Cascade H-Bridge Multilevel Inverter With Equal DC Voltage Source

Ramakant Shukla, Rahul Agrawal

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Abstract

It is not possible to connect power semiconductor switch directly at medium and high voltage level.This introduced a new unit of inverters as a result of applying higher voltage levels, which can be called as multilevel inverters.Multilevel inverters are synthesizing close to sinusoidal voltage from some levels of DC voltages.Multilevel inverters synthesize the stair -case voltage waveform with some lower harmonic content.The output voltages from inverters have reduced harmonic distortions and good quality of waveforms.Because when used this inverter THD content in voltage waveform is very significant it affects the performance of load.This article deals with study and analysis of a single phase multilevel inverter with various levels.By using Matlab different multilevel inverter models are simulated and get an output voltage waveform and THD.

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It is not possible to connect power semiconductor switch directly at medium and high voltage level.This introduced a new unit of inverters as a result of applying higher voltage levels, which can be called as multilevel inverters.Multilevel inverters are synthesizing close to sinusoidal voltage from some levels of DC voltages.Multilevel inverters synthesize the stair -case voltage waveform with some lower harmonic content.The output voltages from inverters have reduced harmonic distortions and good quality of waveforms.Because when used this inverter THD content in voltage waveform is very significant it affects the performance of load.This article deals with study and analysis of a single phase multilevel inverter with various levels.By using Matlab different multilevel inverter models are simulated and get an output voltage waveform and THD.

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Available abstract

It is not possible to connect power semiconductor switch directly at medium and high voltage level.This introduced a new unit of inverters as a result of applying higher voltage levels, which can be called as multilevel inverters.Multilevel inverters are synthesizing close to sinusoidal voltage from some levels of DC voltages.Multilevel inverters synthesize the stair -case voltage waveform with some lower harmonic content.The output voltages from inverters have reduced harmonic distortions and good quality of waveforms.Because when used this inverter THD content in voltage waveform is very significant it affects the performance of load.This article deals with study and analysis of a single phase multilevel inverter with various levels.By using Matlab different multilevel inverter models are simulated and get an output voltage waveform and THD.

Key concepts: Cascade, H bridge, Voltage, Half bridge, Inverter, Control theory (sociology), Electrical engineering, Computer science

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