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The quest for efficient power and energy sustainability has been of utmost importance to technological development. Power generation, transmission and distribution undeniably have been impeded by inherent harmonic distortions emanating from power lines and power devices. The attenuation of this harmonic is made possible using appropriate power semiconductor device. This paper therefore detailed a complete analysis of a grid connected hybrid pulse width modulated multi-level converter applied in a distributed power generation. The stage by stage dc power conversion from the photovoltaic supply in relation to the solar irradiance at different operating temperature of photovoltaic (PV) radiation is presented in this work. A mathematical modeling and Simulink block modeling of a d.c boost converter needed for increasing the PV output voltage to appreciable magnitude is incorporated. A follow up is a complete model of the hybrid five level a.c converter which is formed by a cascade of three level flying capacitor and H-bridge inverter modulated with the conventional multi-carrier sinusoidal method of pulse-width modulation at 0.8 modulation index. The synchronization of the multilevel a.c converter output voltage with the utility was actualized using the inductor current interface. A computer simulation of the proposed model was carried out in MATLAB/SIMULINK and the corresponding results were presented for analysis.

international journal of innovative research in science engineering and technology/international journal of innovative research in science, engineering and technology

Simulation Study of a Grid Connected Hybrid Pulse Width Modulated Multi-Level Converter for A Distributed Power Generation