Contents I. INTRODUCTION
THE global energy consumption is rising and increasing attention is paid to the alternative methods of electricity generation. The demand for renewable energy consumption is increasing about 30% per year. Due to the low environmental impact of renewable energy source, it becomes attractive for the growing demand. Distributed power generation based on renewable energy sources is experiencing a constant growth. The renewable energy source like wind, photovoltaic, fuel cell gain large acceptance, which are installed along the power system constituting the so called distributed power generation. Power electronics plays an important role in converting the input power which is suitable delivered to the utility network. Introduction of power electronics for DPGS has several advantages such as energy optimal operation by applying a control algorithm to extract the maximum available power along with load control, noise reduction, improve power quality and controllable active and reactive power. Power electronics converters are working as interface for easier and flexible grid interconnection. In order to meet the utility network requirement, the power electronics converters are to be controlled during normal and faulty grid condition. The power electronics converter used here is a PWM driven voltage source inverter. The power converter plays an important role in delivering reliable power to the utility network. [1]–[3].
