Implementation of Solar Photovoltaic System with Switched Inductor Z-Source Inverter

The increased energy demand of recent era can be effectively fulfilled by the renewable energy sources. However, the output of the renewable sources cannot be used directly by the consumers. The converters are playing very important role in the energy conservation system to buck, boost, or to convert from one form to another. This paper presents the solar PV system with the direct boost capability with the help of switched inductor Z-source inverter (SLZSI) which converts the DC into AC and also increases the output voltage. The SLZSI is the family of ZSI, which is specially designed for DC to AC conversion and to boost the voltage directly without using any additional devices. In order to achieve the voltage-enhancing capability, in this paper simple boost pulse width modulation (SBPWM) method is incorporated. The input DC supply to the entire system is given by the solar PV module. The MATLAB simulation results of solar PV-fed SLZSI for the different irradiations are clearly described in the results and discussions.