A SEVEN LEVEL INVERTER USING A SOLAR POWER GENERATION SYSTEM

Electronics and Telecommunication Engineering

This paper proposes a new seven level inverter with a solar power generation system, which is composed of a dc-dc power converter and a new seven level inverter. The dc/dc power converter integrates a boost converter and a transformer to convert the output voltage of the solar cell array into independent voltage sources with multiple relationships. The most commonly used solar cell model is introduced and the generalized PV model using Matlab/simulink is developed. Taking the effect of solar intensity and cell temperature, the characteristics of PV model are simulated. Maximum power point tracking algorithms this model used for analysis of PV characteristics and for simulation. The seven level inverter is using a capacitor selection circuit and also using a full bridge power converter. The capacitor circuit converts the two output voltage sources. This project output voltage of solar cell array is low and the dc/dc power converter is used in small capacity solar power generation system and in which boost the output voltage, it can match the dc bus voltage of the inverter. A filter inductor is used to process the switching harmonics. This system generates a sinusoidal output current.

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