This article presents a single-phase 17-level hybrid multi-level inverter. The cascaded unit is made up of two five-level inverter configurations: a diode-clamped inverter and an inverter constituted of a main inverting H-bridge leg and level-clamping half-bridge circuit. The asymmetrically cascaded inverters have a separate DC input ratio of 1:3 that affects reduction in the power circuit component count in the single-phase multi-level inverter system. The operational principles, modulation schemes, and switching functions have been analyzed in detail. Fast fourier transform analysis of the output voltage waveform was carried out, and a low total harmonic distortion value of 7.61% was obtained. The validity of the proposed hybrid multi-level inverter is verified through simulation and experimental results.
A Single-phase Hybrid Multi-level Inverter
2015
Aufsatz (Zeitschrift)
Englisch
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