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@article{144695,
        author = {S.Sri  Matha and P.Thirumala},
        title = {Switching Losses And Harmonic Investigations In Multi-Level Inverter},
        journal = {International Journal of Innovative Research in Technology},
        year = {},
        volume = {4},
        number = {2},
        pages = {172-178},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=144695},
        abstract = {Use of conventional two-level pulse width modulation (PWM) inverters provide less distorted current and voltage but at the cost of higher switching losses due to high switching frequencies. Multilevel inverters are emerging as a viable alternative for high power, medium voltage applications. This paper compares total harmonic distortion and switching losses in conventional two-level inverters with multilevel inverters (three-level and five-level) at different switching frequencies. An optimized switching frequency has been obtained for a lower level of total harmonic distortion and switching losses. Diode-clamped, three-phase topology is considered for study. 
A sinusoidal PWM technique is used to control the switches of the inverter. Simulation study confirms the reduction in harmonic distortion and switching losses as the number of the levels increases.
},
        keywords = {Harmonics, Multilevel inverters, Pulse width modulation, Switching losses, Total harmonic distortion.},
        month = {},
        }