Abstract
This paper propounds a new approach for 1-Ø and 3-Ø MLI (multi-level inverters) to lower the count of components utilized. The suggested methodology utilizes a single DC source which can be either an energy storage device or AC-coupled renewable resource, along with power capacitors, diodes, and less number of active switches per phase, making it ideal for applications with low and medium voltage applications. By expanding the generalized circuit configuration, it is possible to obtain N stages of output voltages. The methodology utilized is unipolar staircase sinusoidal pulse width modulation to give rise to the corresponding gating pulses to the respective switches, making it suitable for operating at low switching frequencies, with decreased switching losses and optimal harmonic distortion. The efficacy of the proposed method is validated by simulating 5-, 13-, and 25-level output voltages with a total harmonic distortion of 17.6%, 6.40%, and 3.26%, respectively in MATLAB/Simulink.
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Vasamsetti, V.L., Varaprasad, M.V.G., Yarnagula, S. (2023). A Unique Three Phase Multi-level Inverter for Low and Medium Power Applications in Photo-Voltaic System. In: Namrata, K., Priyadarshi, N., Bansal, R.C., Kumar, J. (eds) Smart Energy and Advancement in Power Technologies. Lecture Notes in Electrical Engineering, vol 927. Springer, Singapore. https://doi.org/10.1007/978-981-19-4975-3_61
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DOI: https://doi.org/10.1007/978-981-19-4975-3_61
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