నైరూప్య

Grid Connected PV/Wind (GCPW) Hybrid System with Improved Power Quality

Mrs. Ramalakshmi.T, Mrs. Jerril Gilda. S

With ever increasing concern on energy issues, the development of renewable energy sources is becoming more and more attractive. In the past few years the photovoltaic and wind power generation have been increased significantly. Both energy flow and operation characteristics of wind / PV hybrid power systems are analysed to achieve its optimal and reliable operation. Here the proposed hybrid power generation system, applying advanced power control techniques feed to power sources; Wind power, solar power, storage battery. A photovoltaic (PV) based dynamic voltage restorer (DVR) is proposed to handle voltage sags and swells. Otherwise, it will operate as an Uninterruptable power supply (UPS) when the utility grid fails to supply. PV based DVR system is comprised of PV system with low and high power DC-DC Boost converter, PWM voltage source inverter, series injection transformer and semiconductor switches. The simulation study is carried out using MATLAB and results are presented.